Watchband and wearable device

Abstract

A watchband and a wearable device relate to the technical field of wearable devices, the watchband comprises a sound module arranged in the watchband and a waterproof structure arranged on the surface of the watchband, the sound module comprises a pickup module and / or a sounding module, and the waterproof structure is used for transmitting sound. According to the design, the sound module of the wearable equipment is arranged in the watchband, so that sound holes are prevented from being formed in the watch body, and the waterproof problem caused by the holes formed in the watch body is reduced. Meanwhile, the waterproof structure is adopted to seal the sound module, and sound transmission is not hindered. In addition, the waterproof structure also has waterproof performance, can prevent external water, other liquid, dust and the like from entering the interior of the watch body, and realizes protection of the sound module.

Description

Technical Field

[0001] This application relates to the technical field of wearable devices, and particularly to a watch band and a wearable device. Background Art

[0002] Wearable devices refer to electronic devices that can be worn on the body and are capable of monitoring health data, recording exercise, receiving notifications, and interacting, etc. These wearable devices usually come in the forms of watches, glasses, earphones, and bracelets, etc. Among them, wearable electronic products with communication functions have greatly facilitated people's lives. In recent years, with the gradual popularity of diving sports, the market for wearable devices with diving functions has gradually expanded. More and more users have begun to pay attention to the performance of wearable devices in underwater usage scenarios and have put forward higher requirements for their underwater communication performance. Summary of the Invention

[0003] This application provides a watch band and a wearable device. By placing the sound module on the watch band and using a waterproof structure that has both sound transmission and waterproof functions to protect the sound module, it effectively solves the waterproof problem of the wearable device, simplifies the structural space inside the watch body, and optimizes the sound pickup and sound emission.

[0004] In a first aspect, this application provides a watch band. The watch band includes a sound module disposed inside the watch band and a waterproof structure disposed on the surface of the watch band. The sound module includes a sound pickup module and / or a sound emission module, and the waterproof structure is used for transmitting sound.

[0005] In this application, the sound module of the wearable device is disposed outside the watch body, avoiding the need to open sound pickup holes and sound emission holes on the watch body and improving the overall sealing performance of the watch body. The waterproof structure is disposed on the surface of the watch band to fix the sound module in the first accommodation cavity, and the sound module will not easily fall off. The sound module includes a sound pickup module and / or a sound emission module, and can realize sound pickup and / or playback on the watch band. For example, when the sound module includes a sound pickup module, the sound pickup module disposed on the watch band can pick up the sound in the environment and convert it into an electrical signal, and the electrical signal can be transmitted to the processing module inside the watch body; when the sound module includes a sound emission module, the sound emission module can transmit the sound from the watch band to the user's ear; when the sound module includes a sound pickup module and a sound emission module, the watch band can simultaneously realize the functions of sound pickup and playback. The waterproof structure can be made of sound-transmitting materials, etc., to transmit sound, and the sound can effectively realize the mutual transmission between the sound module and the external environment, with less obstruction or attenuation, making the transmission and / or playback of sound clearer and more real, and also being able to protect the sound module.

[0006] In a possible implementation, a first receiving cavity is provided on the watch band. The first receiving cavity has a first opening on the surface of the watch band. The sound module is disposed in the first receiving cavity, and at least part of the waterproof structure covers and seals the first opening. At least part of the waterproof structure covering and sealing the notch can ensure the coverage and sealing of the first opening by the waterproof structure, thereby preventing impurities such as moisture and dust from entering the receiving groove and protecting the sound module from damage. At the same time, due to the sound transmission performance of the waterproof structure, sound can be transmitted more efficiently.

[0007] In a possible implementation, part of the waterproof structure is filled between the side wall of the first receiving cavity and the sound module. The waterproof structure is filled between the side wall of the receiving groove and the sound module, and the periphery of the waterproof structure abuts against the periphery of the first receiving cavity, which can wrap the periphery of the sound pickup module and has a good sealing effect, and can improve the waterproof performance of the sound module.

[0008] In a possible implementation, the waterproof structure is located on the side of the sound module facing the first opening. The waterproof structure covers the surface of the sound module facing the first opening to fix the sound module in the first receiving cavity, achieve waterproof sealing, and protect the sound module from water, dust, etc. Under this design, the amount of the waterproof structure used is small and the process is simple.

[0009] In a possible implementation, the manufacturing material of the waterproof structure includes one or more mixtures of natural rubber, neoprene, butyl rubber, and polyurethane rubber. Materials such as natural rubber, neoprene, butyl rubber, and polyurethane rubber have unique acoustic properties, that is, they can reduce the transmission impedance of sound and ensure the efficient pickup of sound. In addition, these materials have airtight characteristics. Therefore, the problem of the internal and external pressure difference of the sound module can be avoided. The waterproof structure prepared from one or more mixtures of natural rubber, neoprene, butyl rubber, and polyurethane rubber can better transmit sound to the environment and has good waterproof performance.

[0010] In a possible implementation, the waterproof structure has an airtight property and can be used to seal the sound module, protecting the sound module from the effects of water, other liquids, dust, etc., thereby ensuring that the sound module can work properly in various environments. In addition, the waterproof structure can also avoid the problem of pressure difference inside and outside the sound module. The waterproof structure in this application meets two requirements in terms of acoustic performance: 1. The acoustic impedance of the waterproof structure matches the acoustic impedance of water. Acoustic impedance is the resistance that sound waves encounter when propagating in a medium, and its magnitude is equal to the product of the density of the medium and the propagation speed of sound waves in the medium. Then, the acoustic impedance of the waterproof structure is the product of the density of the waterproof structure and the propagation speed of sound waves in the waterproof structure, and the acoustic impedance of water is the product of the density of water and the propagation speed of sound waves in water. The difference in acoustic impedance between the two media determines the reflection coefficient at the interface of the two media. The smaller the difference in acoustic impedance between the two media, the less reflection at the interface of the two media, and the more energy passes through the second medium (here the second medium refers to the waterproof structure); conversely, the greater the difference in acoustic impedance between the two media, the more reflection at the interface of the two media, and the less energy passes through the second medium. Since the acoustic impedance of the waterproof structure matches the acoustic impedance of water, sound waves can pass through the waterproof structure without reflection and reach the sound module. 2. When sound waves pass through the waterproof structure, the waterproof structure has little loss of sound energy. Therefore, the waterproof structure can reduce the transmission impedance of sound and ensure efficient transmission of sound.

[0011] In a possible implementation, at least part of the waterproof structure is provided on the outer surface of the watch band. The watch band has an inner surface and an outer surface. The inner surface is the surface that comes into contact with the skin of the wrist when the watch band is worn, and the outer surface does not come into contact with the skin. The outer surface is the surface opposite to the inner surface and does not come into contact with the wrist. The waterproof structure is used to transmit sound, and at least part of the waterproof structure is provided on the outer surface of the watch band and covers the first opening.

[0012] By designing the waterproof structure on the outer surface, the waterproof structure does not come into contact with the skin of the wrist, and the sound will not be blocked by the skin of the wrist, which is beneficial to the transmission of sound. In addition, when designing, the comfort of the user's wearing and the fit between the watch band and the skin need to be considered; by providing the waterproof structure on the outer surface, the inner surface of the watch band can be made smoother, reducing friction and discomfort to the skin and improving the wearing comfort. When sound is transmitted from the outside through the waterproof structure to the sound module, it will not be blocked by the wrist, and the sound transmission effect is better.

[0013] Compared with the case where the sound module is located inside the watch body, the available area on the watch body for opening is limited. When the sound module is located on the outer surface of the watch band, the range of choices for the size of the area of the waterproof structure can be larger, so that a more suitable area of the waterproof structure can be selected according to requirements. This is beneficial to increasing the sound transmission area and obtaining a sound signal with better clarity and volume.

[0014] In a possible implementation, at least a part of the waterproof structure is disposed on the side surface of the watch band. The watch band further includes a side surface. The side surface is connected between the inner surface and the outer surface. At least a part of the waterproof structure is disposed on the side surface of the watch band and covers the first opening, which can enable the sound module to have a larger area for sound transmission with the external environment. Moreover, the first opening can face different directions, which is beneficial for the sound module to perform sound transmission with the multi-directional environment through the waterproof structure to quickly determine the direction of sound transmission.

[0015] In a possible implementation, the watch band has a first connection end for connecting to the watch body, and the sound module is disposed near the first connection end. In this design, when the user uses the wearable device, the sound module is closer to the user's vocal part and ear, which is more conducive to the sound module to acquire the user's voice and send the voice to the user's ear.

[0016] In a possible implementation, the watch band includes a band body and a buckle, and the sound module is disposed in the band body and / or the buckle. The sound module can be disposed in the band body, or in the buckle, or simultaneously disposed in the band body and the buckle. The buckle has a certain thickness and accommodation space. Disposing the sound module on the buckle can not occupy the space of the watch band and is more convenient to combine with other modules on the buckle.

[0017] In a possible implementation, the sound module is in a plate shape, and the thickness direction of the sound module is consistent with the thickness direction of the watch band. The sound pickup module is laid along the thickness direction of the watch band in the first accommodation cavity, which can not only better adapt to the structure of the watch band, but also enable the MEMS sound system to have a larger surface to acquire the sound transmitted from the first opening, enhance the sound collection ability of the MEMS sound system, so as to better receive the sound signal and have a better sound acquisition effect.

[0018] In a possible implementation, the waterproof structure includes a sound-permeable membrane, the sound module includes a substrate and a MEMS sound system, and the MEMS sound system is fixed on the base surface of the substrate; the sound-permeable membrane covers the outer surface of the MEMS sound system, and the sound-permeable membrane is hermetically connected to the base surface for selection according to needs under specific processes.

[0019] In a possible implementation, the waterproof structure includes a sound-permeable membrane, and the sound-permeable membrane wraps the sound module. Wrapping the periphery of the sound module with the sound-permeable membrane can not only enable the sound module to have a better sealing effect and improve the waterproof performance of the sound module, but also provide a certain supporting effect for the sound module to ensure the structural stability of the sound module.

[0020] In a possible implementation, the MEMS sound system includes at least one of a capacitive MEMS sound system and a piezoelectric MEMS sound system. The capacitive MEMS sound system converts a sound signal into a capacitance change, and then uses MEMS technology to convert the capacitance change into a digital signal for processing and storage. Finally, the digital signal is converted back into a sound signal for output. It has advantages such as high sensitivity, wide frequency response, and low noise. The piezoelectric MEMS sound system converts a sound signal into a piezoelectric change, and then uses MEMS technology to convert the piezoelectric change into a digital signal for processing and storage. Finally, the digital signal is converted back into a sound signal for output. It has advantages such as fast response speed, small size, and low power consumption. The MEMS sound system is fixed on the base surface of the substrate, and a sound-transmitting membrane covers the outer surface of the MEMS sound system. The sound-transmitting membrane and the base surface are hermetically connected. In this embodiment, the MEMS sound system adopts a capacitive MEMS sound system or a piezoelectric MEMS sound system, which can endow the wearable device with advantages such as high sensitivity, low power consumption, miniaturization, and fast response, can provide a better sound recognition and acquisition experience, and enrich the functions and application scenarios of the wearable device.

[0021] In a possible implementation, the watch band includes a connection end for connecting to the watch body of the wearable device; a first channel is provided inside the watch band, one end of the first channel has a second opening on the end surface of the connection end, and the other end of the first channel communicates with the first accommodation cavity; a first electrical contact head is provided in the second opening, the first electrical contact head is hermetically connected to the inner wall surface of the first channel, the first electrical contact head is used to contact and electrically connect with the second electrical contact head of the watch body, a first transmission line is provided in the first channel, one end of the first transmission line is electrically connected to the first electrical contact head, and the other end of the first transmission line extends into the first accommodation cavity and is electrically connected to the sound module.

[0022] The watch band and the watch body can be detachably connected. The first electrical contact head is electrically connected to one end of the first transmission line, and the other end of the first transmission line extends into the first accommodation cavity and is electrically connected to the sound module. The first electrical contact head contacts the watch body. The watch body and the watch band are designed to be detachably connected, which can achieve a personalized customization effect. In addition, the watch band replacement is more convenient, which can save maintenance costs and extend the service life of the wearable device.

[0023] In a possible implementation, the watch strap has a spring ear, and the spring ear is the first electrical contact. The watch strap can be detachably connected to the watch body through the spring ear. The spring ear has a spring ear head. The first electrical contact can be a spring ear head, and the spring ear head has a conductive function. One end of the first transmission line is electrically connected to the spring ear head, and the other end of the first transmission line extends into the first accommodating cavity and is electrically connected to the sound module. Under such a design, the spring ear can not only serve as a detachable connection structure between the watch strap and the watch body, but also as an electrical connection structure between the watch strap and the watch body.

[0024] In a possible implementation, the watchband includes a plurality of the first channels, and the plurality of the first channels form the second openings corresponding to the plurality of the first electrical contacts on the end surface of the connection end; the first channels in the watchband may be two, three, four or more. A plurality of wires with different functions are arranged in the plurality of first channels, and different wires are used to transmit different signals, and each wire does not interfere with each other, thereby improving the efficiency and quality of signal transmission.

[0025] In a possible implementation, a first wireless communication module is further provided in the watch strap, the first wireless communication module is electrically connected to the sound module, and the first wireless communication module is used to communicate with the second wireless communication module in the watch body. Through the first wireless communication module and the second wireless communication module, the sound module can establish a wireless communication connection with the processor to achieve the transmission of electrical signals, avoiding the complexity of the wiring design required for the wired connection and the inconvenience of replacing the watch strap and the watch body. With wireless communication technology, there is no need to specially open a channel for wiring, the sealing is better, and the waterproof risk caused by the wired connection is reduced.

[0026] In one possible implementation, a battery module and a wireless charging module are further provided in the watchband, and the battery module is electrically connected to the sound module, and the wireless charging module is electrically connected to the battery module. The battery module and the wireless charging module can be located in the watchband close to the sound module or away from the sound module. Wireless charging technology mainly uses electromagnetic induction, magnetic field resonance or electric field coupling and other technologies to transfer electrical energy from a charging device to a receiving device. When the wireless charger is close to a wearable device, it can automatically charge the wearable device and store the electrical energy in the battery module, thereby providing the required electrical energy for the wearable device. The wireless charging design makes the use of wearable devices more convenient and improves waterproofness.

[0027] In a possible implementation, a first processing module is further included in the watch band. The first processing module is electrically connected to the sound module. The first processing module includes at least one of a filtering module, an amplifying module, a sampling module, a demodulating module, and a decoding module. The first processing module processes the signal transmitted by the sound module. The first processing module includes at least one of a filtering module, an amplifying module, a sampling module, a demodulating module, and a decoding module. The first processing module may include a filtering module and an amplifying module. The filtering module and the amplifying module are located in the watch band, while the sampling module, the demodulating module, and the decoding module are located in the watch body. In this embodiment, some functional modules are placed in the watch band, which can release some space inside the watch body, improve the utilization rate of the space structure, reduce the volume and mass of the watch body, and make the weight of the wearable device more uniform.

[0028] In a possible implementation, there are multiple sound modules in the watch band, and the multiple sound modules are arranged at intervals. Sounds in the environment propagate to the wearable device from multiple directions. The multiple sound modules are arranged at intervals, which can not only obtain the time-domain information of the sound signal, but also obtain the spatial-domain information, and can suppress the noise in other directions while transmitting the signal, providing a better auditory experience for the user.

[0029] In a possible implementation, the sound module includes a substrate and multiple microelectromechanical sound systems located on the substrate. The substrate is laid flat in the watch band, and the multiple microelectromechanical sound systems are arranged at intervals. The multiple microelectromechanical sound systems are arranged at intervals on the substrate, and can be located on the upper and lower sides of the substrate respectively. The multiple microelectromechanical sound systems are electrically connected in series or in parallel to form an array-type sound module. Sounds in the environment propagate to the wearable device from multiple directions. The multiple microelectromechanical sound systems are arranged at intervals on the substrate, which can realize the superposition of sound signals and effectively improve the quality of the sound signals.

[0030] In a second aspect, the present application provides a wearable device, including a watch body and the watch band described in any one of the above, and the watch body and the watch band are of an integrated structure or are detachably connected.

[0031] In this application, the sound module of the wearable device is arranged outside the watch body, avoiding the need to open sound pickup holes and sound emission holes on the watch body, and improving the overall sealing performance of the watch body. The waterproof structure contacts the sound module to fix the sound module in the first accommodation cavity, and the sound module will not easily fall off. The sound module includes a sound pickup module and / or a sound emission module, which can achieve sound pickup and / or playback on the watch band. For example, when the sound module includes a sound pickup module, the sound pickup module arranged on the watch band can pick up the sound in the environment and convert it into an electrical signal, and the electrical signal can be transmitted to the processing module in the watch body; when the sound module includes a sound emission module, the sound emission module can transmit the sound from the watch band to the user's ear; when the sound module includes a sound pickup module and a sound emission module, the watch band can simultaneously achieve the functions of sound pickup and playback. At the same time, by using a waterproof structure instead of a waterproof film, sound can effectively achieve mutual transmission between the sound module and the external environment, with less obstruction or attenuation, making the transmission and / or playback of sound clearer and more realistic. In addition, the waterproof structure can also balance the pressure and acoustic resistance inside and outside the sound module, achieving the protection of the sound module and the optimization of sound pickup. The watch body and the watch band have different connection methods, which can be designed according to different user needs, making the form of the wearable device more diverse.

[0032] In a possible implementation manner, the watch body and the watch band are detachably connected. The watch body has a second accommodation cavity, and a circuit board and a processor located on the circuit board are arranged in the second accommodation cavity; there is a second channel on the watch body, one end of the second channel has a third opening on the surface of the watch body, the other end of the second channel communicates with the second accommodation cavity, a second electrical contact head is arranged in the third opening, the second electrical contact head is hermetically connected to the inner wall surface of the second channel, and the second electrical contact head is in contact electrical connection with the first electrical contact head arranged on the watch band; a second transmission line is arranged in the second channel, one end of the second transmission line is electrically connected to the second electrical contact head, and the other end of the second transmission line is electrically connected to the processor.

[0033] The connection between the watch band and the watch body can be that the watch band and the watch body are of an integral structure. The processor and the sound module can be connected in a wired manner. One end of the transmission line is located in the first channel and is electrically connected to the sound module, and the other end is located in the second channel and is electrically connected to the processor, realizing signal transmission between the sound module and the processor.

[0034] The connection between the watch band and the watch body can be that the watch band and the watch body are detachable. The processor and the sound module can be connected in a wired manner. The second electrical contact head and the first electrical contact head are in contact with each other to achieve electrical connection, enabling the wearable device to have a sound function.

[0035] In a third aspect, the present application provides a watch body, which includes a case and lugs. The case and the lugs are fixedly connected or integrally formed. A first accommodation cavity is provided on the lugs. The first accommodation cavity has a first opening on the lugs. A sound module is disposed in the first accommodation cavity. The sound module includes a waterproof structure and a sound module body. The sound module body includes a sound pickup module and / or a sound emitting module. The sound module is located in the first accommodation cavity, and at least part of the waterproof structure covers the first opening. The waterproof structure contacts the sound module to fix the sound module in the first accommodation cavity.

[0036] In the present application, the sound module of the wearable device is disposed inside the lugs, avoiding the need to open sound pickup holes and sound emitting holes in the structure of the watch body for accommodating the circuit board, thus improving the overall sealing performance of the watch body. The waterproof structure contacts the sound module to fix the sound module in the first accommodation cavity, so that the sound module will not easily fall off. The sound module includes a sound pickup module and / or a sound emitting module, enabling sound pickup and / or playback on the lugs. For example, when the sound module includes a sound pickup module, the sound pickup module provided on the lugs can pick up ambient sounds and convert them into electrical signals, which can be transmitted to the processing module inside the watch body; when the sound module includes a sound emitting module, the sound emitting module can transmit sounds from the lugs to the user's ears; when the sound module includes both a sound pickup module and a sound emitting module, the lugs can simultaneously perform the functions of sound pickup and playback. At the same time, by using a waterproof structure instead of a waterproof film, sound can effectively be transmitted between the sound module and the external environment with less obstruction or attenuation, making the transmission and / or playback of sound clearer and more realistic. In addition, the waterproof structure can also balance the pressure and acoustic impedance inside and outside the sound module, achieving protection of the sound module and optimization of sound pickup.

[0037] In a possible implementation, the first accommodation cavity includes a receiving groove, and the first opening includes the notch of the receiving groove. At least part of the waterproof structure covers the notch. Compared with other forms of the first accommodation cavity, the area of the notch of the receiving groove can be designed to be larger, so that the area through which sound passes is also larger, which is beneficial for the sound module to pick up more sounds. At least part of the waterproof structure covering and sealing the notch can ensure the coverage and sealing of the notch by the waterproof structure, thereby preventing impurities such as moisture and dust from entering the receiving groove and protecting the sound module from damage. At the same time, due to the sound transmission performance of the waterproof structure, sound can be effectively transmitted.

[0038] In a possible implementation, the watch body includes an outer surface and an inner surface. The inner surface is used to contact the skin, and the first opening is located on the outer surface. The waterproof structure is used to transmit sound. By designing the first opening on the outer surface of the watch ear, the first opening does not contact the wrist skin, so the sound will not be blocked by the wrist skin, which is beneficial to the transmission of sound. In addition, when designing, the comfort of the user wearing and the fit between the watch body and the skin need to be considered; by setting the first opening on the outer surface, the inner surface of the watch body can be made smoother, reducing the friction and discomfort to the skin and improving the wearing comfort.

[0039] In a possible implementation, the manufacturing material of the waterproof structure includes one or more mixtures of natural rubber, neoprene, butyl rubber, and polyurethane rubber. Materials such as natural rubber, neoprene, butyl rubber, and polyurethane rubber have unique acoustic properties, that is, they can reduce the transmission impedance of sound and ensure the optimization of sound pickup. In addition, these materials have the characteristic of airtightness, so the problem of pressure difference inside and outside the sound module can be avoided. The waterproof structure prepared from one or more mixtures of natural rubber, neoprene, butyl rubber, and polyurethane rubber can better transmit sound to the environment.

[0040] In a possible implementation, the waterproof structure includes a sound-transmitting membrane. The sound pickup module includes a substrate and a microelectromechanical sound system. The microelectromechanical sound system is fixed on the base surface of the substrate, and the sound-transmitting membrane covers the outer surface of the microelectromechanical sound system. The sound-transmitting membrane is hermetically connected to the base surface. The microelectromechanical sound system can be fixed only on one base surface of the substrate, or can be fixed on the upper and lower two base surfaces of the substrate. The microelectromechanical sound system has a small volume, excellent heat resistance, vibration resistance, and radio frequency interference prevention performance, and at the same time has a better sound pickup effect.

[0041] In a possible implementation, the waterproof structure includes a sound-transmitting membrane, and the sound-transmitting membrane covers the sound module. Using the sound-transmitting membrane to cover the periphery of the sound module can not only make the sound module have a better sealing effect and improve the waterproof performance of the sound module; but also provide a certain supporting role for the sound module to ensure the structural stability of the sound module.

[0042] In a possible implementation, there are multiple sound modules in the watch band. The multiple sound modules are arranged at intervals. The multiple sound modules are located in the same first accommodation cavity, or there are multiple first accommodation cavities, and at least part of the sound modules are located in different first accommodation cavities. The sound in the environment propagates to the wearable device from multiple directions. The multiple sound modules are arranged at intervals, which can not only obtain the time-domain information of the sound signal, but also obtain the spatial-domain information, and can suppress the noise in other directions while transmitting the signal, providing a better auditory experience for the user.

[0043] In a possible implementation, the sound module includes a substrate and a plurality of microelectromechanical sound systems located on the substrate. The plurality of microelectromechanical sound systems are arranged at intervals, and at least part of the microelectromechanical sound systems are located on the side of the substrate close to the first opening. The plurality of microelectromechanical sound systems are arranged at intervals on the substrate and can be located on the upper and lower sides of the substrate respectively. The plurality of microelectromechanical sound systems are electrically connected in series or in parallel to form an array-type sound module. Sounds in the environment propagate to the wearable device from multiple directions. The plurality of microelectromechanical sound systems are arranged at intervals on the substrate, which can achieve the superposition of sound signals and effectively improve the quality of sound signals.

[0044] In a fourth aspect, the present application provides a wearable device, including a watch band and the watch body described in any one of the above. The watch body and the watch band are of an integral structure or are detachably connected. In the present application, the sound module of the wearable device is arranged in the lug, which avoids opening sound pickup holes and sound emission holes in the structure of the watch body for accommodating the circuit board, and improves the overall sealing performance of the watch body. The waterproof structure contacts the sound module to fix the sound module in the first accommodation cavity, and the sound module will not fall off easily. The sound module includes a sound pickup module and / or a sound emission module, which can realize sound pickup and / or playback on the lug. For example, when the sound module includes a sound pickup module, the sound pickup module arranged on the lug can pick up the sound in the environment and convert it into an electrical signal, and the electrical signal can be transmitted to the processing module in the watch body; when the sound module includes a sound emission module, the sound emission module can transmit the sound from the lug to the user's ear; when the sound module includes a sound pickup module and a sound emission module, the lug can simultaneously realize the functions of sound pickup and playback. At the same time, using a waterproof structure instead of a waterproof film, sound can effectively achieve the mutual transmission between the sound module and the external environment, with less obstruction or attenuation, making the transmission and / or playback of sound clearer and more real. In addition, the waterproof structure can also balance the pressure and acoustic resistance inside and outside the sound module, realizing the protection of the sound module and the optimization of sound pickup. Description of the Drawings

[0045] Figure 1 is a schematic three-dimensional structure diagram of the wearable device provided by the embodiment of the present application;

[0046] Figure 2 is another schematic three-dimensional structure diagram of the wearable device provided by the embodiment of the present application;

[0047] Figure 3 is Figure 2 a cross-sectional schematic diagram along A-A;

[0048] Figure 4 is Figure 2 a cross-sectional schematic diagram of the watch band along B-B in;

[0049] Figure 5 It is a schematic cross-sectional view of the watch band along B-B in another embodiment provided by the present application;

[0050] Figure 6 It is a schematic cross-sectional view of the watch band along B-B in another embodiment provided by the present application;

[0051] Figure 7 It is a schematic cross-sectional view of the watch band along B-B in another embodiment provided by the present application;

[0052] Figure 8 It is a schematic cross-sectional view of the watch band along B-B in another embodiment provided by the present application;

[0053] Figure 9 It is a schematic cross-sectional view of the watch band along B-B in another embodiment provided by the present application;

[0054] Figure 10 It is a schematic view of the outer surface of the watch band provided by the embodiment of the present application with a plurality of first openings;

[0055] Figure 11 is Figure 10 a schematic cross-sectional view of the watch band along C-C;

[0056] Figure 12 It is a schematic cross-sectional view of the watch band along C-C in another embodiment provided by the present application;

[0057] Figure 13 It is a schematic view of the outer surface and side surface of the watch band provided by the embodiment of the present application with first openings;

[0058] Figure 14 is Figure 13 a schematic cross-sectional view of the watch band along D-D;

[0059] Figure 15 It is a schematic cross-sectional view of the watch band along D-D in another embodiment provided by the present application;

[0060] Figure 16 It is a schematic cross-sectional view of the watch band along D-D in another embodiment provided by the present application;

[0061] Figure 17 It is a schematic cross-sectional view of the watch band along D-D in another embodiment provided by the present application;

[0062] Figure 18A It is a schematic view of the first opening on the outer surface of the watch band provided by the embodiment of the present application being a kidney-shaped hole;

[0063] Figure 18B It is a schematic view of the first opening on the outer surface of the watch band provided by the embodiment of the present application being a square hole;

[0064] Figure 18C Schematic diagram of the first opening on the outer surface of the watch band provided by the embodiment of the present application being a circular hole;

[0065] Figure 19A Schematic diagram of the first opening on the side of the watch band provided by the embodiment of the present application being a kidney-shaped hole;

[0066] Figure 19B Schematic diagram of the first opening on the side of the watch band provided by the embodiment of the present application being a circular hole;

[0067] Figure 19C Schematic diagram of the first opening on the side of the watch band provided by the embodiment of the present application being a square hole;

[0068] Figure 20 Schematic diagram of the structure of a wearable device according to another embodiment provided by the embodiment of the present application;

[0069] Figure 21 Schematic diagram of the structure of a piezoelectric microelectromechanical sound system provided by the present application;

[0070] Figure 22 Schematic diagram of the connection relationship between the watch band and the watch body provided by the embodiment of the present application;

[0071] Figure 23 Schematic diagram of the wired connection relationship between the watch band and the watch body according to another embodiment provided by the embodiment of the present application;

[0072] Figure 24 The first electrical contact head provided by the embodiment of the present application is along Figure 2 Partial cross-sectional view at E-E in;

[0073] Figure 25 Schematic diagram of the wired connection relationship between the watch band and the watch body according to another embodiment provided by the embodiment of the present application;

[0074] Figure 26 Schematic diagram of the wireless connection relationship between the watch band and the watch body provided by the embodiment of the present application;

[0075] Figure 27 Schematic diagram of the structure of the sound module provided by the embodiment of the present application;

[0076] Figure 28 Schematic diagram of another embodiment of the sound module located in the lug of the watch body provided by the embodiment of the present application. Specific embodiments

[0077] The embodiments of the present application will be described below with reference to the accompanying drawings in the embodiments of the present application.

[0078] For ease of understanding, the following first explains and describes the English abbreviations and related technical terms involved in the embodiments of the present application.

[0079] It should be clear that the described embodiments are only a part of the embodiments of the present application, rather than all of them. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative efforts belong to the scope of protection of the present application.

[0080] The terms used in the embodiments of the present application are only for the purpose of describing specific embodiments, and are not intended to limit the present application. The singular forms of "a", "the" and "said" used in the embodiments of the present application and the appended claims are also intended to include the plural forms, unless the context clearly indicates otherwise.

[0081] It should be understood that the term "and / or" used herein is only a description of the same field of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " herein generally represents an "or" relationship between the associated objects before and after.

[0082] Depending on the context, the word "if" as used herein can be interpreted as "when" or "while" or "in response to determining" or "in response to detecting". Similarly, depending on the context, the phrase "if determined" or "if detecting (stated condition or event)" can be interpreted as "when determined" or "in response to determining" or "when detecting (stated condition or event)" or "in response to detecting (stated condition or event)".

[0083] It should be understood that the "first", "second", etc. used in the present application are only for the purpose of distinguishing descriptions, and cannot be understood as indicating or implying relative importance, nor can they be understood as indicating or implying an order.

[0084] In the description of the present application, the orientation or positional relationship indicated by terms such as "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present application.

[0085] The "within... range" used in the present application, unless otherwise specified as not including the end values, by default includes the two end values of the range. For example, within the range of 1 to 5, the two values of 1 and 5 are included.

[0086] In the description of the present application, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, a conflicting connection or an integrated connection. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0087] Wearable devices refer to electronic devices that can be worn on the body, usually used to monitor health data, record exercise status, receive notifications, and interact. These wearable devices are usually presented in the form of watches, glasses, headphones, and bracelets. Among them, wearable electronic products with communication functions have greatly facilitated people's lives. In recent years, with the gradual popularity of diving, the market for wearable devices with diving functions has gradually expanded. More and more users have begun to pay attention to the performance of wearable devices in underwater usage scenarios, and have put forward higher requirements for their underwater communication performance.

[0088] The present application provides a wearable device 10, which may be a wrist product with a strap structure such as a watch or a bracelet. The type of the wearable device 10 is not limited here, and the present application takes the wearable device 10 as a watch as an example for explanation. Figure 1 and Figure 2 As shown, Figure 1 and Figure 2 Provided for this application is a schematic diagram of the structure of a wearable device 10, which includes a body 110 and a strap 120. The body 110 is the main part of the wearable device 10, which is used to realize the display and interaction functions of the wearable device 10, and the strap 120 is used to connect to the body 110, so that the wearable device 10 is worn on the user's wrist.

[0089] The watch body 110 includes a shell 111, a display screen 112 and other electronic components. The shell 111 and the display screen 112 enclose a cavity, which is used to accommodate electronic components such as a motherboard, a battery and a sensor, thereby providing protection for the electronic components. The shell 111 includes a frame and a back cover. Exemplarily, the frame is the side portion of the watch body 110 along the thickness direction. The inner wall of the frame is fixedly connected to the outer wall of the display screen 112. The frame provides support and protection for the wearable device 10 as a whole, and the frame can be made of materials such as metal, plastic, ceramic or alloy. Figure 1 As shown, in the embodiment of the present application, the cross-sectional shape of the watch frame is circular. In other embodiments, the cross-sectional shape of the watch frame may also be rectangular, square, oval or other shapes. The edge of the back cover is fixedly connected to the watch frame so that the back cover covers the lower end of the watch frame, and the back cover can contact the user's wrist when worn. The watch frame and the back cover may be an integrated structure or may be independent structures.

[0090] The watch band 120 is connected to the watch body 110. The watch band 120 may include a first watch band 121 and a second watch band 122. The first watch band 121 and the second watch band 122 are respectively connected to opposite sides of the watch body 110, constituting the band body part of the watch band 120. The first watch band 121 and the second watch band 122 are used in cooperation. At one end of the first watch band 121 away from the watch body 110, there is provided a first locking portion 1211, and at one end of the second watch band 122 away from the watch body 110, there is provided a second locking portion 1221. The first locking portion 1211 and the second locking portion 1221 are locked with each other to form a buckle 123 of the watch band 120, so as to wear the wearable device 10 on the user's wrist. It should be understood that the buckle 123 may be a buckle structure such as a snap fastener, a plug buckle, a hook buckle, a pin buckle or a folding buckle, etc. Those skilled in the art can adopt different ways of wearing the watch band according to the design and function of the watch, and this application does not make specific limitations thereto. The watch band 120 may be a flexible band that can be bent under an external force, so as to be conveniently attached to the user's wrist. In the embodiment of this application, the material of the watch band 120 is rubber. Of course, the watch band 120 may also be made of other materials, such as leather, nylon or metal, and the embodiment of this application does not make specific limitations thereto. It should be noted that when the watch band 120 is made of a metal material, the watch band 120 is formed by connecting a plurality of single-section watch chains to each other.

[0091] In a possible implementation manner, the watch band 120 may be a single-piece watch band formed integrally. The watch band 120 is made of an elastic material, and both ends of the integrally formed watch band 120 are respectively connected to the watch body 110.

[0092] Existing wearable devices 10 with communication functions usually have a sound module arranged inside the watch body 110, and sound holes are provided on the housing 111. The sound holes are communicated with the sound module, and can allow sound to enter or exit the interior of the wearable device 10. Inside the sound holes, there are a support net and a waterproof film. The support net is located close to the sound holes and may be a grid-like structure made of materials such as metal or plastic. Its main function is to resist external impacts and vibrations, provide structural support and protection for the sound module. At the same time, the support net can also guide external moisture or other impurities away from the sound module, reducing interference to the sound module.

[0093] The waterproof film is a film-like structure with characteristics such as waterproofing and breathability. The waterproof film is closely attached around the sound holes and can prevent moisture from entering the interior of the watch body 110. The waterproof performance of the waterproof film is mainly achieved by preventing moisture from entering the interior through the micropores of the film. At the same time, the waterproof film can also transmit sound. When sound passes through the surface of the waterproof film, the waterproof film can transmit the sound wave from the outside to the sound module inside the watch body 110 or out from the sound module inside the watch body 110. However, due to the presence of the waterproof film, sound cannot pass through the waterproof film unobstructed, so the sound signal will be weakened, affecting the clarity and volume of the sound.

[0094] To meet higher waterproof requirements, it is necessary to improve the waterproof level of the waterproof film. The higher the waterproof level, the smaller the air permeability of the waterproof film. When the waterproof film reaches a certain level, it will rely on the vibration of the waterproof film itself for sound transmission, and at this time, the waterproof film has almost no air permeability, and the entire watch body 110 can reach a nearly closed state. When the pressure inside the watch body 110 is inconsistent with the external pressure, the waterproof film is prone to deformation. For example, when wearing the wearable device 10 for diving, as the diving depth increases, the external water pressure is greater than the pressure inside the watch body 110, and the air pressure on both sides of the waterproof film cannot be balanced, resulting in deformation of the waterproof film. And because the waterproof film itself has almost no air permeability, it is impossible to balance the air pressure on both sides of the waterproof film in a short time. After the waterproof film deforms, its vibration amplitude is limited, resulting in a smaller or abnormal sound picked up by the sound module. And the open sound pickup holes and other structures have high requirements for the waterproof and structural design of the wearable device 10.

[0095] In addition, due to the limited internal space of the watch body 110, the sound module is designed inside the watch body 110, which will not only be restricted by the internal space, but also occupy the internal space, which is not conducive to the layout of other structures and components inside the watch body 110, and it is also difficult to design a bilateral sound module or a multi-array sound module in the limited space of the watch body 110.

[0096] This application provides a watch band 120, refer to Figure 2 as shown Figure 2Schematic three-dimensional structure diagram of the wearable device 10 provided by this application. The watch band 120 includes a sound module 130 disposed within the watch band 120 and a waterproof structure 131 disposed on the surface of the watch band 120. The sound module 130 includes a sound pickup module 132 and / or a sound generation module 133. Among them, the sound pickup module 132 is an energy conversion device that converts sound signals into electrical signals, and is usually referred to as a microphone. The sound generation module 133 is an electroacoustic transducer device used to convert audio electrical signals into sound signals, and is usually referred to as a speaker. The sound module 130 is located within the watch band 120, that is, the sound pickup module 132 of the wearable device 10 can be located within the watch band 120; it can also be that the sound generation module 133 of the wearable device 10 is located within the watch band 120; it can also be that the sound pickup module 132 and the sound generation module 133 of the wearable device 10 are both located within the watch band 120, and the sound pickup module 132 and the sound generation module 133 work independently without interference.

[0097] The waterproof structure 131 is disposed on the surface of the watch band 120 for sound propagation. The waterproof structure 131 in this application meets two requirements in terms of acoustic performance: 1. The acoustic impedance of the waterproof structure 131 matches the acoustic impedance of water. Acoustic impedance is the resistance encountered by sound waves during propagation in a medium, and its magnitude is equal to the product of the density of the medium and the propagation speed of sound waves in that medium. Then, the acoustic impedance of the waterproof structure 131 is the product of the density of the waterproof structure 131 and the propagation speed of sound waves in the waterproof structure 131, and the acoustic impedance of water is the product of the density of water and the propagation speed of sound waves in water. The difference in the acoustic impedance of the two media determines the reflection coefficient at the interface of the two media. The smaller the difference in the acoustic impedance of the two media, the less reflection at the interface of the two media, and the more energy transmitted through the second medium (here the second medium refers to the waterproof structure 131); conversely, the larger the difference in the acoustic impedance of the two media, the more reflection at the interface of the two media, and the less energy transmitted through the second medium. Since the acoustic impedance of the waterproof structure 131 matches the acoustic impedance of water, sound waves can pass through the waterproof structure 131 without reflection and reach the sound module 130. 2. When sound waves pass through the waterproof structure 131, the waterproof structure 131 has little loss of sound energy. Therefore, the waterproof structure 131 can reduce the transmission impedance of sound and ensure efficient transmission of sound.

[0098] The waterproof structure 131 has an airtight property and can be used to seal the sound module 130 to protect the sound module 130 from the influence of water, other liquids, dust, etc., so as to ensure that the sound module 130 can work properly in various environments. In addition, the waterproof structure 131 can also avoid the problem of pressure difference inside and outside the sound module 130. The waterproof structure 131 can be an integrally formed structure or a splicing structure formed by combining multiple materials. At least part of the waterproof structure 131 has a sound transmission function for sound propagation.

[0099] In one embodiment, the sound module 130 includes a sound pickup module 132. The sound pickup module 132 is located within the watch band 120, and a waterproof structure 131 covers the surface of the watch band 120 and seals the sound pickup module 132. The waterproof structure 131 can not only transmit external sounds to the sound pickup module 132, but also has a waterproof function, which can prevent external water, other liquids, dust, etc. from entering the interior of the watch body 110 and protect the sound pickup module 132 from being damaged.

[0100] In one embodiment, the sound module 130 includes a sound emitting module 133. The sound emitting module 133 is located within the watch band 120, and a waterproof structure 131 covers the surface of the watch band 120 and seals the sound emitting module 133. The waterproof structure 131 can transmit the sound of the sound emitting module 133 to the outside, and also has a waterproof function, which can prevent external water, other liquids, dust, etc. from entering the interior of the watch body 110 and protect the sound emitting module 133 from being damaged.

[0101] In one embodiment, the sound module 130 includes a sound pickup module 132 and a sound emitting module 133. The sound pickup module 132 and the sound emitting module 133 are located within the watch band 120, and a waterproof structure 131 covers the surface of the watch band 120 and seals the sound pickup module 132 and the sound emitting module 133. The waterproof structure 131 can transmit external sounds to the sound pickup module 132 and transmit the sound of the sound emitting module 133 to the outside. The waterproof structure 131 has a waterproof function, which can prevent external water, other liquids, dust, etc. from entering the interior of the watch body 110 and protect the sound module 130 from being damaged.

[0102] The wearable device 10 provided in this application sets the sound module 130 outside the watch body, avoiding opening a sound pickup hole on the watch body 110 and reducing the waterproof problem caused by the opening of the watch body 110. At the same time, the waterproof structure 131 is used to seal the sound module 130, which not only avoids the reduction of sound, realizes the efficient transmission of the sound of the sound module 130, but also has good waterproof performance and protects the sound module 130 from being damaged.

[0103] Exemplarily, this application takes the sound pickup module 132 as an example of the sound module 130 for illustration. Figure 2 The schematic diagram showing the sound pickup module 132 located within the watch band 120 is shown. Of course, in other embodiments, the sound emitting module 133 or both the sound pickup module 132 and the sound emitting module 133 can be arranged within the watch band 120 according to actual requirements.

[0104] In some possible implementation manners, refer to Figure 2 and Figure 3 shown, Figure 3 is Figure 2Schematic cross-sectional view along A-A. A first receiving cavity 124 is provided on the watch band 120. The first receiving cavity 124 has a first opening 1241 on the surface of the watch band 120. The sound pickup module 132 of the wearable device 10 is located in the first receiving cavity 124. The waterproof structure 131 is in contact with the sound pickup module 132, and at least part of the waterproof structure 131 covers and seals the first opening 1241. The waterproof structure 131 is closely attached to the inner side of the first opening 1241 and covers the first opening 1241. The covering area of the waterproof structure 131 at the first opening 1241 can be greater than or equal to the area of the first opening 1241, so as to ensure that the waterproof structure 131 can cover the first opening 1241, and finally fix the sound pickup module 132 in the first receiving cavity 124, realizing a good seal between the first opening 1241 and the sound pickup module 132.

[0105] In a possible implementation, refer to Figure 4 as shown in Figure 4 is Figure 2 Schematic cross-sectional view of the watch band 120 along B-B when the sound pickup module 132 is located inside the watch band 120. The waterproof structure 131 is filled between the side wall of the first receiving cavity 124 and the sound pickup module 132.

[0106] The first receiving cavity 124 on the watch band 120 may include a receiving groove 1242. Correspondingly, the first opening 1241 may include the notch of the receiving groove 1242. Compared with other forms of the first receiving cavity 124, the area of the notch of the receiving groove 1242 can be designed to be larger, so that the area through which sound passes is also larger, which is beneficial to picking up more sounds. The sound pickup module 132 may include a micro electromechanical system (MEMS) 1321 and a substrate 1322. The micro electromechanical system 1321 is fixed on the base surface of the substrate 1322. The micro electromechanical system 1321 can be as Figure 4As shown, it is only fixed on one base surface of the substrate 1322, or can also be fixed on the upper and lower base surfaces of the substrate 1322. Compared with the traditional sound pickup module 132, the microelectromechanical sound system 1321 has a smaller volume, stronger heat resistance, vibration resistance and radio frequency interference resistance, and at the same time has a better sound pickup effect. The waterproof structure 131 may include a sound-transmitting membrane 1311, and the sound-transmitting membrane 1311 is used to wrap the sound pickup module 132. The periphery of the sound-transmitting membrane 1311 abuts against the periphery of the first accommodation cavity 124 and is filled between the side wall of the accommodation groove 1242 and the sound pickup module 132, with good sealing effect, which can improve the waterproof performance of the sound pickup module 132. Among them, the sound-transmitting membrane 1311 located on the positive side of the Y direction is used to effectively pick up external sounds and prevent external water, impurities, etc. from contacting the sound pickup module 132; the sound-transmitting membrane 1311 located in the X direction can both prevent external water, impurities, etc. from contacting the sound pickup module 132 and support the sound pickup module 132; the sound-transmitting membrane 1311 located on the negative side of the Y direction is mainly used to support the sound pickup module 132.

[0107] In a possible implementation manner, referring to Figure 5 As shown, the waterproof structure 131 is located on the side of the sound module 130 facing the first opening 1241. The sound pickup module 132 is disposed in the first accommodation cavity 124 and abuts against the periphery of the first accommodation cavity 124. One surface of the sound-transmitting membrane 1311 covers the outer surface of the microelectromechanical sound system 1321, and the outer surface of the microelectromechanical sound system 1321 refers to the surface of the microelectromechanical sound system 1321 facing the first opening 1241. The other surface covers the first opening 1241. The sound-transmitting membrane 1311 fixes the sound pickup module 132 in the first accommodation cavity 124 to achieve waterproof sealing, and the waterproof function of the sound-transmitting membrane 1311 can protect the sound module from water, dust, etc.

[0108] In an embodiment, the area of the sound-transmitting membrane 1311 may be larger than the area of the first opening 1241. Referring to Figure 6 As shown, the sound pickup module 132 is located in the first accommodation cavity 124, and the outer surface of the microelectromechanical sound system 1321 of the sound pickup module 132 is flush with the first opening 1241. The sound-transmitting membrane 1311 covers the first opening 1241, and both sides of the sound-transmitting membrane 1311 extend to the surface of the watch band 120 and are smoothly connected to the surface of the watch band 120 to fix the sound pickup module 132 in the first accommodation cavity 124 and achieve sealing of the sound pickup module 132.

[0109] In an embodiment, referring to Figure 7As shown, the sound pickup module 132 is located within the first accommodation cavity 124, and the upper surface (the surface on the Y-direction side) of the sound pickup module 132 is lower than the edge of the first opening 1241. The upper surface (the surface on the Y-direction side) of the sound pickup module 132 is recessed downward (in the opposite direction of Y) relative to the upper surface (the surface on the Y-direction side) of the watch band 120. The sound-permeable membrane 1311 is filled between the first accommodation cavity 124 and the sound pickup module 132, and then covers the first opening 1241. Both sides of the sound-permeable membrane 1311 extend to the surface of the watch band 120 and are smoothly connected to the surface of the watch band 120, so as to fix the sound pickup module 132 within the first accommodation cavity 124 and achieve sealing of the sound pickup module 132.

[0110] In one embodiment, referring to Figure 8 As shown, the sound pickup module 132 is located within the first accommodation cavity 124, and the upper surface of the sound pickup module 132 is higher than the edge of the first opening 1241. The upper surface of the sound pickup module 132 protrudes upward (in the Y direction) relative to the first opening 1241. The sound-permeable membrane 1311 covers the outer surface of the part of the sound pickup module 132 that protrudes from the watch band 120, and both sides of the sound-permeable membrane 1311 extend to the surface of the watch band 120 and are smoothly connected to the surface of the watch band 120, so as to fix the sound pickup module 132 within the first accommodation cavity 124 and achieve sealing of the sound pickup module 132.

[0111] In one embodiment, referring to Figure 9 As shown, the first accommodation cavity 124 on the watch band 120 may include a through hole 1243 that penetrates the watch band 120 in the thickness direction of the watch band 120. The sound pickup module 132 is located within the through hole 1243. The sound-permeable membrane 1311 is located on the side of the sound pickup module 132 facing the first opening 1241 and fills the through hole 1243, so that the sound pickup module 132 can be fixed within the through hole 1243 and the sound pickup module 132 is sealed.

[0112] In one possible implementation manner. The waterproof structure 131 can be prepared by mixing one or more of natural rubber, neoprene, butyl rubber, or cast polyurethane rubber. The waterproof structure 131 can reduce the transmission impedance of sound and optimize the sound pickup. The waterproof structure 131 has an airtight property, can solve the problem of the pressure difference between the inside and outside of the sound pickup module 132, can better transmit sound with the environment, and can also achieve a good waterproof effect.

[0113] In one possible implementation manner, the surface of the watch band 120 includes an inner surface 125 and an outer surface 126, wherein, the watch band 120 is as Figure 1As shown, the inner surface 125 is the surface that fits and contacts the wrist, and the outer surface 126 is the surface disposed opposite to the inner surface 125 and does not fit and contact the wrist. The first opening 1241 may be located on the outer surface 126, and at least part of the waterproof structure 131 is disposed on the outer surface 126 of the watch band 120 and covers the first opening 1241. When sound is transmitted from the outside through the first opening 1241 to the sound pickup module 132, it will not be blocked by the wrist, and the sound pickup effect is better.

[0114] In one embodiment, refer to Figure 10 As shown, there are a plurality of first openings 1241 spaced apart on the outer surface 126. Figure 11 and Figure 12 is Figure 10 a schematic cross-sectional view along C-C. The sound-permeable membrane 1311 may only wrap the position where the microelectromechanical sound system 1321 contacts the plurality of first openings 1241 ( Figure 11 ). The sound-permeable membrane 1311 may also cover the outer surface of the sound pickup module 132 ( Figure 12 ).

[0115] In a possible implementation manner, refer to Figure 1 As shown, the watch band 120 further includes a side surface 1261. The side surface 1261 is connected between the inner surface 125 and the outer surface 126, and at least part of the waterproof structure 131 is disposed on the side surface 1261 of the watch band 120 and covers the first opening 1241. It can be understood that the waterproof structure 131 may only be located on the outer surface 126 (as Figure 10 shown); the waterproof structure 131 may also be located on both the outer surface 126 and the side surface 1261 (as Figure 13 shown).

[0116] In some possible embodiments, Figures 14 to 17 it is shown that the first openings 1241 are provided on both the outer surface 126 and the side surface 1261, and the waterproof structure 131 covers and seals the first openings 1241. Figures 14 to 17 Both are Figure 13 schematic cross-sectional views along D-D. Refer to Figure 14 As shown, the first accommodation cavity 124 is a receiving groove 1242. The position of the first opening 1241 on the side surface 1261 may be provided on the side wall of the receiving groove 1242, and the first opening 1241 is not communicated with the bottom of the receiving groove 1242. Refer to Figure 15 As shown, the first accommodation cavity 124 is a receiving groove 1242. The position of the first opening 1241 on the side surface 1261 may be provided on the side wall of the receiving groove 1242, and the first opening 1241 is communicated with the bottom of the receiving groove 1242. Refer to Figure 16As shown, the first accommodation cavity 124 is the accommodation groove 1242. The position of the first opening 1241 on the side surface 1261 can be provided on the side wall of the accommodation groove 1242, and the first opening 1241 communicates with the bottom of the accommodation groove 1242. The sound pickup module 132 is located in the accommodation groove 1242, and the MEMS sound system 1321 of the sound pickup module 132 can be located on the upper and lower two base surfaces of the substrate 1322. Since sounds can come from different directions, with this design, it can be ensured that the sound pickup area of the sound pickup module 132 is larger, which is beneficial to obtaining more sounds. Refer to Figure 17 As shown, the first accommodation cavity 124 is the through hole 1243. The position of the first opening 1241 on the side surface 1261 can be provided on the side wall of the through hole 1243, and the first opening 1241 does not communicate with the bottom of the through hole 1243. The MEMS sound system 1321 of the sound pickup module 132 located in the through hole 1243 can be located on the upper and lower two base surfaces of the substrate 1322. Of course, in other embodiments, there can be various situations regarding the positional relationship between the first opening 1241 on the side surface 1261 and the first accommodation cavity 124, and the present application will not list them one by one here. The covering manner of the sound transmission film 1311 to the sound pickup module 132 and the first opening 1241 is similar to that of the above embodiment, and this embodiment will not be elaborated here.

[0117] In a possible implementation manner, it is also possible that the first opening 1241 has any other appropriate shape. For example, the first opening 1241 can be in the shape of a waist shape, a circle, an ellipse, a square, or an irregular shape, etc. The number of the first openings 1241 on the outer surface 126 and the side surface 1261 can be multiple. For example, 4 first openings 1241 are provided on the outer surface 126, and 1 first opening 1241 is provided on the side surface 1261; or 1 first opening 1241 is provided on the outer surface 126, and 4 first openings 1241 are provided on the side surface 1261. It can be understood that in some other embodiments, the number of the first openings 1241 on the outer surface 126 and the side surface 1261 can be any number, and a matching design can be made according to actual needs.

[0118] Exemplarily, Figure 18A It shows that the first openings 1241 are arranged at intervals in the form of waist-shaped holes on the outer surface 126. Figure 18B It shows that the first openings 1241 are arranged in an array in the form of square holes on the outer surface 126. Figure 18C It shows that the first openings 1241 are arranged in an array in the form of circular holes on the outer surface 126. Figure 19A It shows that the first opening 1241 is designed in the form of a waist-shaped hole on the side surface 1261. Figure 19B It shows that the first openings 1241 are arranged at intervals in the form of circular holes on the side surface 1261. Figure 19CIt is shown that the first openings 1241 are arranged at intervals in the form of square holes on the side surface 1261. The first openings 1241 can be arranged in any number, any shape and in any manner on the outer surface 126 and the side surface 1261, and the present application does not limit this.

[0119] In one embodiment, the area of the first opening 1241 may not be less than 1 mm 2 . The maximum area of the first opening 1241 may be the area of the entire surface of the watch band 120. The area of the first opening 1241 can be designed according to the size of different watch bands 120. For example, the area of the first opening 1241 may be 1 mm 2 within the range of 100 cm 2 . There are a plurality of first openings 1241 arranged at intervals on the outer surface 126. The area of the first opening 1241 refers to the sum of the areas of all the first openings 1241 located on the outer surface 126 and the side surface 1261. Compared with the sound pickup module 132 being located inside the watch body 110, the area of the opening on the watch body 110 that can be opened for acquiring sound is limited. When the sound pickup module 132 is located on the watch band 120, the selection range of the area of the first opening 1241 for acquiring sound can be larger, so that a more suitable area of the first opening 1241 can be selected according to requirements. It is beneficial to increase the sound transmission area and obtain a sound signal with better clarity and volume.

[0120] In a possible implementation manner, referring to Figure 3 as shown, the watch band 120 further includes a connection end 127. The connection end 127 is the end close to the watch body 110, and the connection end 127 is used to connect to the watch body 110 of the wearable device 10. The watch body 110 further includes watch lugs 113. The watch lugs 113 are located at both ends of the watch body 110 and include an upper watch lug 1131 and a lower watch lug 1132. The watch lugs 113 are used to connect to the watch band 120. Figure 3 The number of watch lugs 113 shown in

[0121] is four. It can be understood that the number of watch lugs 113 shown in the figure is only an example. In some other possible embodiments, the number of watch lugs 113 can be any number. The watch lugs 113 located at the same end of the watch body 110 are opposite to each other and arranged at intervals. A pair of opposite mounting holes (not shown in the figure) are formed on the inner side of each watch lug 113. The mounting holes can be blind holes or through holes, and no specific limitation is made here. Figure 3As shown, the watch band 120 includes a first watch band 121 and a second watch band 122. The first watch band 121 is used to connect to the lower lug 1132 of the watch body 110, and the second watch band 122 is used to connect to the upper lug 1131 of the watch body 110. When the user wears the wearable device 10, the first watch band 121 is on the side closer to the user of the wearable device 10. The first watch band 121 has a first connection end 1271, and the first connection end 1271 is used to connect to the lower lug 1132. A first accommodation cavity 124 is provided on the first watch band 121, and a sound pickup module 132 is provided in the first accommodation cavity 124. The sound pickup module 132 is provided near the first connection end 1271. For example, the distance between the sound pickup module 132 and the first connection end 1271 can be in the range of 1 centimeter to 5 centimeters. When the user uses the wearable device 10, the sound pickup module 132 is closer to the user's vocal part, which is more conducive to the sound pickup module 132 obtaining the user's voice.

[0122] In one embodiment, a first accommodation cavity 124 can be provided on the first watch band 121, and a first accommodation cavity 124 can also be provided on the second watch band 122. A sound pickup module 132 can be provided in the first accommodation cavity 124 of the first watch band 121, and a sound emitting module 133 can be provided in the first accommodation cavity 124 of the second watch band 122.

[0123] In a possible implementation manner, the watch band 120 includes a band body and a watch buckle 123, and the sound module 130 is provided in the band body and / or the watch buckle 123. The sound module 130 can be provided in the band body, can be provided in the watch buckle 123, or can be provided in both the band body and the watch buckle 123 at the same time. This implementation manner is described by taking the sound module 130 being located in the watch buckle 123 as an example. Refer to Figure 20 As shown, the watch buckle 123 is provided with a first accommodation cavity 124, and a sound module 130 is provided in the first accommodation cavity 124. The sound module 130 can include a sound pickup module 132. The watch buckle 123 has a certain thickness and accommodation space. By providing the sound pickup module 132 on the watch buckle 123, the space of the watch band 120 can be not occupied, and it is more convenient to combine with other modules on the watch buckle 123. For the case where the sound transmission film 1311 and the sound pickup module 132 are located on the watch buckle 123, it is similar to the case where the sound transmission film 1311 and the sound pickup module 132 are located on the watch band 120, and the present application will not elaborate here.

[0124] In some other embodiments, both the band body and the watch buckle 123 can be provided with a first accommodation cavity 124, and a sound module 130 is provided in the first accommodation cavity 124. The sound module 130 can include a sound pickup module 132 and a sound emitting module 133. The sound pickup module 132 can be located in the watch buckle 123, and the sound emitting module 133 can be located in the band body; or, the sound emitting module 133 can be located in the watch buckle 123, and the sound pickup module 132 can be located in the band body.

[0125] In a possible implementation, the sound pickup module 132 may be in a plate shape. When the sound pickup module 132 is placed in the first accommodation cavity 124, the thickness direction of the sound pickup module 132 may be consistent with the thickness direction of the watch band 120. The sound pickup module 132 may include a microelectromechanical sound system 1321 and a substrate 1322, and the microelectromechanical sound system 1321 is fixed on the base surface of the substrate 1322. The microelectromechanical sound system 1321 may be fixed only on one base surface of the substrate 1322 as shown in Figure 4 or may be fixed on the upper and lower base surfaces of the substrate 1322. The sound pickup module 132 is laid in the first accommodation cavity 124 along the thickness direction of the watch band 120, which can not only better adapt to the structure of the watch band 120, but also enable the microelectromechanical sound system 1321 to have a larger surface to acquire the sound transmitted from the first opening 1241, enhance the sound collection ability of the microelectromechanical sound system 1321, so as to better receive the sound signal and have a better sound acquisition effect.

[0126] In a possible implementation, referring to Figure 5 as shown, the sound pickup module 132 is disposed in the first accommodation cavity 124 and abuts against the periphery of the first accommodation cavity 124. One surface of the sound transmission membrane 1311 covers the outer surface of the microelectromechanical sound system 1321 and is hermetically connected to the base surface of the substrate 1322. The outer surface of the microelectromechanical sound system 1321 refers to the surface of the microelectromechanical sound system 1321 facing the first opening 1241. The other surface covers the first opening 1241. The sound transmission membrane 1311 fixes the sound pickup module 132 in the first accommodation cavity 124 to achieve waterproof sealing.

[0127] In a possible implementation, the microelectromechanical sound system 1321 includes at least one of a capacitive microelectromechanical sound system and a piezoelectric microelectromechanical sound system. Among them, the capacitive microelectromechanical sound system realizes sound collection and playback by using a capacitive sensor and microelectromechanical technology. The sound signal is converted into a capacitance change by the capacitive microelectromechanical sound system, and then the capacitance change is converted into a digital signal by using microelectromechanical technology for processing and storage, and finally the digital signal is converted into a sound signal for output. The capacitive microelectromechanical sound system has the advantages of high sensitivity, wide frequency response and low noise. The piezoelectric microelectromechanical sound system realizes sound collection and playback by using a piezoelectric sensor and microelectromechanical technology. The sound signal is converted into a piezoelectric change by the piezoelectric microelectromechanical sound system, and then the piezoelectric change is converted into a digital signal by using microelectromechanical technology for processing and storage, and finally the digital signal is converted into a sound signal for output. It has the advantages of fast response speed, small volume and low power consumption.

[0128] This embodiment is described by taking the piezoelectric microelectromechanical sound system as an example. Figure 21The structure of a piezoelectric MEMS sound system is shown. The piezoelectric MEMS sound system includes a first electrode layer L1, a piezoelectric layer L2, and a second electrode layer L3. The first electrode layer L1 and the second electrode layer L3 can be made of platinum or titanium materials. The piezoelectric layer L2 can be made of any one of piezoelectric materials such as aluminum nitride, piezoelectric ceramics, and zinc oxide. Of course, in some other embodiments, the piezoelectric layer can also be made of other materials, which will not be exemplified one by one here. The piezoelectric layer L2 is located between the first electrode layer L1 and the second electrode layer L3, and the second electrode layer L3 is directly disposed on the substrate 1322. The overlapping regions of the perpendicular projections of the first electrode layer L1, the piezoelectric layer L2, and the second electrode layer L3 onto the substrate 1322 are used as the piezoelectric drive functional regions. When a sound signal is transmitted to the piezoelectric layer L2, the piezoelectric layer L2 will generate a charge change, and the charge change can be further converted into a digital signal. The MEMS sound system 1321 is fixed on the base surface of the substrate 1322, and the sound-transmitting membrane 1311 covers the outer surface of the MEMS sound system 1321. The sound-transmitting membrane 1311 and the base surface of the substrate 1322 are hermetically connected.

[0129] In this embodiment, the MEMS sound system 1321 adopts a capacitive MEMS sound system or a piezoelectric MEMS sound system, which can endow the wearable device 10 with advantages such as high sensitivity, low power consumption, miniaturization, and fast response, can provide a better sound recognition and acquisition experience, and enrich the functions and application scenarios of the wearable device 10.

[0130] In a possible implementation manner, the waterproof structure 131 may include a sound-transmitting membrane 1311, and the sound-transmitting membrane 1311 may cover the outer surface of the sound pickup module 132. Refer to Figure 4 As shown, the sound-transmitting membrane 1311 can entirely wrap the outer surfaces of the substrate 1322 and the MEMS sound system 1321. Thus, the periphery of the sound-transmitting membrane 1311 abuts against the periphery of the first receiving cavity 124. Wrapping the periphery of the sound pickup module 132 with the sound-transmitting membrane 1311 can not only enable the sound pickup module 132 to have a better sealing effect and improve the waterproof performance of the sound pickup module 132, but also provide a certain supporting effect for the sound pickup module 132 to ensure the structural stability of the sound pickup module 132. Among them, in this embodiment, the sound-transmitting membrane 1311 entirely wraps the sound pickup module 132, and Figure 4 there is also a part of the sound-transmitting membrane 1311 below the sound pickup module 132 in which can support the sound pickup module 132 on the bottom of the groove of the first receiving cavity of the watch band to fix the sound pickup module 132 in the first receiving cavity. Moreover, the part of the sound-transmitting membrane 1311 between the sound pickup module 132 and the side wall of the first receiving cavity can support the sound pickup module 132 between the side walls of the first receiving cavity to fix the sound pickup module 132 in the first receiving cavity.

[0131] In a possible implementation manner, refer toFigure 22 As shown, the watch band 120 and the watch body 110 can be designed as an integrated structure, and the sound pickup module 132 can be electrically connected to the processor 1142 inside the watch body in a wired manner. Among them, the integrated structure can be that the watch body 110 and the watch band 120 are directly integrally formed during manufacturing, or the watch body 110 and the watch band 120 are fixedly connected by sealant or the like and are not detachable. The integrated design of the watch body 110 and the watch band 120 can achieve the overall consistency and coordination of the wearable device 10. In addition, the connection between the watch body 110 and the watch band 120 is more firm, not easy to loosen or damage, and can improve the stability and durability of the wearable device 10.

[0132] Specifically, referring to Figure 22 As shown, a first channel 128 is provided inside the watch band 120. One end of the first channel 128 has a second opening 1281 on the end face of the connection end 127, and the other end of the first channel 128 communicates with the first accommodation cavity 124. Correspondingly, the watch body 110 may have a second channel 115. One end of the second channel 115 has a third opening 116a on the surface of the watch body 110, and the other end of the second channel 115 communicates with the second accommodation cavity 114. A transmission line 1282 is provided inside the first channel 128. One end of the transmission line 1282 is electrically connected to the sound pickup module 132, and the other end extends to the second channel 115 and is electrically connected to the processor 1142 in the second accommodation cavity 114, so as to realize the signal transmission between the sound pickup module 132 and the processor 1142.

[0133] In a possible implementation manner, referring to Figure 23As shown, the watch band 120 and the watch body 110 are designed to be detachable. The sound pickup module 132 can be electrically connected to the processing module inside the watch body in a wired manner. The wearable device 10 further includes a spring bar 140. The watch band 120 is connected to the lugs 113 through the spring bar 140. The spring bar 140 includes a hollow circular rod 141 and a first spring bar head 142 and a second spring bar head 143 respectively arranged at both ends of the circular rod 141. The first spring bar head 142 and the second spring bar head 143 can expand and contract in the axial direction relative to the circular rod 141. The connecting ends 127 of the first watch band 121 and the second watch band 122 are respectively sleeved outside the circular rod 141. When the first watch band 121 and the second watch band 122 are connected to the lugs 113, the first spring bar head 142 and the second spring bar head 143 are respectively inserted into the installation holes arranged oppositely on the inner side of the lugs 113 and are connected in cooperation with the installation holes, thereby installing the watch band 120 on the watch body 110. One ends of the first watch band 121 and the second watch band 122 away from the watch body 110 can be locked with each other through the first locking portion 1211 and the second locking portion 1221 to complete the wearing of the wearable device 10. The watch body 110 and the watch band 120 are designed to be detachably connected. Users can choose different watch bands 120 according to their own preferences or the needs of different occasions to achieve personalized customization effects. In addition, when the watch band 120 is worn or broken while the watch body 110 can still be used normally, users can easily replace the new watch band 120 without replacing the entire wearable device 10. This not only saves the maintenance cost but also extends the service life of the wearable device 10.

[0134] Continue to refer to Figure 23 As shown, a first electrical contact head 1283 is provided in the second opening 1281. The first electrical contact head 1283 is hermetically connected to the inner wall surface of the first channel 128. A first transmission line 1284 is provided in the first channel 128. One end of the first transmission line 1284 is electrically connected to the first electrical contact head 1283, and the other end of the first transmission line 1284 extends into the first accommodation cavity 124 and is electrically connected to the sound pickup module 132. Correspondingly, a second electrical contact head 1161 is provided in the third opening 116b on the watch body 110. The second electrical contact head 1161 is hermetically connected to the inner wall surface of the second channel 115. A second transmission line 117 is provided in the second channel 115. One end of the second transmission line 117 is electrically connected to the second electrical contact head 1161, and the other end of the second transmission line 117 is electrically connected to the processor 1142. The first electrical contact head 1283 on the watch band 120 is brought into contact with the second electrical contact head 1161 on the watch body 110 to realize the electrical connection between the sound pickup module 132 and the processor 1142.

[0135] The first electrical contact head 1283 and the second electrical contact head 1161 can be designed as spring connectors (pogopin), and the first electrical contact head 1283 and the second electrical contact head 1161 can expand and contract along the axial direction. Among them, asFigure 24 As shown Figure 24 is a partial cross-sectional view of the first electrical contact head 1283 along Figure 2 section E-E in the figure. The first electrical contact head 1283 includes a first spring connector. The bottom of the first spring connector is electrically connected to one end of the first transmission line 1284, and the other end of the first transmission line 1284 extends into the first accommodation cavity 124 and is electrically connected to the sound pickup module 132. The second electrical contact head 1161 includes a second spring connector. The bottom of the second spring connector is electrically connected to one end of the second transmission line 117, and the other end of the second transmission line 117 is electrically connected to the processor 1142. The top of the first spring connector abuts against the top of the second spring connector to achieve the electrical connection between the processor 1142 in the watch body 110 and the sound pickup module 132 in the watch band 120, so that the wearable device 10 has the sound pickup function. The first electrical contact head 1283 and the second electrical contact head 1161 can also be designed into other structures. For example, they can be designed into electrode structures, and the present application does not limit this.

[0136] In one embodiment, refer to Figure 25As shown in the figure, an example is given where there are two first channels 128 inside the watch band 120. The watch band 120 can be detachably connected to the watch body 110 through the spring bar 140. The spring bar 140 passes through the second opening 1281, and the first electrical contact head 1283 can be the first spring bar head 142 and the second spring bar head 143. That is, the first spring bar head 142 and the second spring bar head 143 of the spring bar 140 have the function of conducting electricity. One end of the first transmission line 1284 is connected to the first spring bar head 142 (i.e., the first electrical contact head 1283), and the other end of the first transmission line 1284 extends into the first accommodation cavity 124 and is electrically connected to the sound pickup module 132. The third opening 116c can be located on the lugs 113 of the watch body 110, and the second electrical contact head 1161 is arranged in the third opening 116c. One end of the second transmission line 117 is electrically connected to the second electrical contact head 1161, and the other end of the second transmission line 117 is electrically connected to the processor 1142. The first power line 1285 is electrically connected to the second spring bar head 143 (i.e., the first electrical contact head 1283), and the other end of the first power line 1285 extends into the first accommodation cavity 124 and is electrically connected to the sound pickup module 132. The third opening 116c can be located on the lugs 113 of the watch body 110, and the second electrical contact head 1161 is arranged in the third opening 116c. One end of the second power line 118 is electrically connected to the second electrical contact head 1161, and the other end of the second power line 118 is electrically connected to the processor 1142. When the watch band 120 is connected to the watch body 110, the first spring bar head 142 and the second spring bar head 143 (i.e., the first electrical contact head 1283) extend into the third opening 116c and contact the second electrical contact head 1161 to achieve electrical connection. Under such a design, the spring bar 140 can not only serve as a detachable connection structure between the watch band 120 and the watch body 110, but also as an electrical connection structure between the watch band 120 and the watch body 110. To avoid short - circuit of the circuit, the round rod 141 is made of non - conductive material.

[0137] The watch band 120 is detachably connected to the watch body 110. When the watch band 120 is damaged or the user wants to replace the watch band 120 according to their own preferences, the sound pickup module 132 inside the replaced watch band 120 can be re - electrically connected to the signal of the processor 1142 inside the watch body 110 by contacting the first electrical contact head 1283 and the second electrical contact head 1161.

[0138] In a possible implementation, the watch band 120 includes a plurality of first channels 128. A plurality of second openings 1281 corresponding to the plurality of first electrical contact heads 1283 are formed on the end face of the connection end 127. A power line is provided in at least one of the first channels 128, and both ends of the power line are electrically connected to the first electrical contact head 1283 and the sound module 130 respectively. There can be multiple first channels 128 in the watch band 120, and there can be multiple first electrical contact heads 1283. A plurality of second openings 1281 are formed on the end face of the connection end 127 by the plurality of first channels 128, and the plurality of first electrical contact heads 1283 and the plurality of second openings 1281 are connected one-to-one. Correspondingly, there can be multiple second channels 115 in the watch body 110, and there can be multiple second electrical contact heads 1161. A plurality of third openings are formed on the surface of the watch body 110 by the plurality of second channels 115, and the plurality of second electrical contact heads 1161 and the plurality of third openings are connected one-to-one. A first power line 1285 is provided in at least one of the first channels 128, and both ends of the first power line 1285 are electrically connected to the first electrical contact head 1283 and the sound pickup module 132 respectively. A second power line 118 is provided in at least one of the second channels 115, and both ends of the second power line 118 are electrically connected to the second electrical contact head 1161 and the processor 1142 respectively. Since a plurality of second channels 115 and first channels 128 are respectively provided in the watch body 110 and the watch band 120, when the first electrical contact head 1283 contacts the second electrical contact head 1161, the electrical connection between the sound pickup module 132 and the processor 1142 can not only realize the signal transmission between the sound pickup module 132 and the processor 1142, but also supply power to the sound pickup module 132. Figure 20 and Figure 25 Both show the case where there are two first channels 128 in the watch band 120, and a first transmission line 1284 and a first power line 1285 are respectively arranged in the two first channels 128. The number of first channels 128 in the watch band 120 can also be three, four or even more, and the present application does not limit this. It should be noted that Figure 20 the first transmission line 1284 and the first power line 1285 shown are located inside the watch band 120, rather than on the surface of the watch band 120.

[0139] In a possible implementation, when the sound pickup module 132 is electrically connected in a wireless manner, as shown in Figure 26 a first wireless communication module 1244 is further provided in the first accommodation cavity 124 of the watch band 120. The first wireless communication module 1244 is electrically connected to the sound pickup module 132, and the first wireless communication module 1244 is used for communication connection with the second wireless communication module 119 in the watch body 110.

[0140] The first wireless communication module 1244 and the second wireless communication module 119 may include a Bluetooth communication module, a wireless fidelity (Wi-Fi) communication module, a near field communication (NFC) module, etc. Through the first wireless communication module 1244 and the second wireless communication module 119, the sound pickup module 132 can establish a wireless communication connection with the processor 1142 to achieve the transmission of electrical signals, avoiding the inconvenience of wired connection. Using wireless communication technology, there is no need to specifically open a channel for wire routing, the sealing performance is better, and the waterproof risk brought by wired connection is reduced.

[0141] Since the watch band 120 is detachable, when the watch band 120 is damaged or the user wants to replace the watch band 120 according to their own preferences, the sound module 130 in the replaced watch band 120 can be paired with the second wireless communication module 119 through the first wireless communication module 1244 to re-connect with the watch body 110 for communication. The use of the wireless communication module not only facilitates the transmission of electrical signals from the watch band 120 to the watch body 110, but also improves the flexibility of the sound pickup module 132.

[0142] In a possible implementation manner, refer to Figure 26 As shown, a battery module 1245 and a wireless charging module 1246 are further provided in the watch band 120. The battery module 1245 is electrically connected to the sound pickup module 132, and the wireless charging module 1246 is electrically connected to the battery module 1245. The battery module 1245 and the wireless charging module 1246 may be located near the sound pickup module 132 or far from the sound pickup module 132 within the watch band 120. In a possible implementation manner, as Figure 26 shown, the battery module 1245 and the wireless charging module 1246 may be located at the watch buckle 123 on the watch band 120. Wireless charging technology mainly uses technologies such as electromagnetic induction, magnetic field resonance, or electric field coupling to transfer electrical energy from a charging device to a receiving device. When the wireless charger approaches the wearable device 10, it can automatically charge the wearable device 10 and store the electrical energy in the battery module 1245, thereby providing the required electrical energy for the wearable device 10. The wireless charging design makes the use of the wearable device 10 more convenient and efficient.

[0143] In a possible implementation, the strap 120 further includes a first processing module 150. The first processing module 150 is electrically connected to the sound pickup module 132. The first processing module 150 includes at least one of a filtering module, an amplifying module, a sampling module, a demodulating module, and a decoding module. Among them, the amplifying module is used to increase the intensity of the electrical signal so that the electrical signal can be better transmitted and processed. The filtering module is used to screen and process the electrical signal to remove noise or clutter and improve the quality of the electrical signal. The sampling module resamples the electrical signal and converts the time-continuous electrical signal into a time-discrete and amplitude-continuous signal. The electrical signal after passing through the sampling module is further converted into a digital sound signal. The demodulating module is used to demodulate the audio modulation signal from the received signal. The decoding module is used to compress or decompress the digital sound signal. For example, when the digital sound signal is encoded into a compressed format, the decoding module needs to perform decoding processing to restore the compressed digital sound signal to the original sound signal. When sound passes through the sound pickup module 132, it is converted into an electrical signal, and then the electrical signal is sequentially processed by the first processing module 150. The first processing module may include a filtering module and an amplifying module. The filtering module and the amplifying module are located in the strap 120, while the sampling module, the demodulating module, and the decoding module are located in the watch body 110.

[0144] It should be noted that when the sound generating module 133 is located in the first accommodation cavity of the strap, the sound generating module 133 is the receiving end of the signal, that is, the sound generating module 133 receives the signal from the processor 1142. The first processing module 150 may include at least one of an encoding module, a modulating module, a digital-to-analog conversion module, and a power module. Among them, the encoding module mainly converts the signal transmitted by the processor 1142 into a digital signal. The main function of the modulating module is to convert the digital signal into a signal suitable for transmission at the sending end. The digital-to-analog conversion module mainly converts the digital signal into an analog signal. The power module mainly amplifies the power of the signal and amplifies the signal to a sufficient power to overcome the noise and interference in the channel. After receiving the signal from the processor 1142, the sound generating module 133 plays the sound signal through the processing of the first processing module 150.

[0145] In a possible implementation, refer to Figure 20 As shown, a plurality of sound modules 130 are arranged at intervals. The plurality of sound modules 130 may be located in the same first accommodation cavity 124, or the strap 120 has a plurality of first accommodation cavities 124, and at least some of the sound modules 130 are located in different first accommodation cavities 124. One or more sound pickup modules 132 are installed in each first accommodation cavity 124. The sound in the environment propagates to the wearable device 10 from multiple directions. The plurality of sound modules 130 are arranged at intervals, which can not only obtain the time-domain information of the sound signal, but also obtain the spatial-domain information, and can suppress the noise in other directions while picking up the signal, providing a better auditory experience for the user.

[0146] In one embodiment, the plurality of sound modules 130 are arranged at intervals and can be located in the same first accommodation cavity 124. The sound module 130 includes a sound pickup module 132 and a sound emitting module 133, and the plurality of sound pickup modules 132 and sound emitting modules 133 can be located in the same first accommodation cavity 124.

[0147] In one embodiment, the plurality of sound modules 130 are arranged at intervals. The watch band 120 has a plurality of first accommodation cavities 124, and at least some of the sound modules 130 are located in different first accommodation cavities 124. The sound module 130 includes a sound pickup module 132 and a sound emitting module 133. The first watch band 121 and the second watch band 122 respectively have a first accommodation cavity 124. The sound pickup module 132 is located in the first accommodation cavity 124 of the first watch band 121, and the sound emitting module 133 is located in the first accommodation cavity 124 of the second watch band 122; or, the sound pickup module 132 is located in the first accommodation cavity 124 of the second watch band 122, and the sound emitting module 133 is located in the first accommodation cavity 124 of the first watch band 121; or, the sound emitting module 133 is simultaneously located in the first accommodation cavities 124 of the first watch band 121 and the second watch band 122, or, the sound pickup module 132 is located in the first accommodation cavities 124 of the first watch band 121 and the second watch band 122.

[0148] In one embodiment, the plurality of sound modules 130 are arranged at intervals. The watch band 120 has a plurality of first accommodation cavities 124, and at least some of the sound modules 130 are located in different first accommodation cavities 124. The sound module 130 includes a sound pickup module 132 and a sound emitting module 133. The first watch band 121 has a plurality of first accommodation cavities 124. The sound pickup module 132 is located in the plurality of first accommodation cavities 124 of the first watch band 121; or, the sound emitting module 133 is located in the plurality of first accommodation cavities 124 of the first watch band 121; or, the sound pickup module 132 and the sound emitting module 133 are respectively located in different first accommodation cavities 124 on the first watch band 121.

[0149] In one embodiment, a plurality of sound modules 130 are arranged at intervals. There are a plurality of first accommodation cavities 124 in the watch band 120, and at least some of the sound modules 130 are located in different first accommodation cavities 124. The sound module 130 includes a sound pickup module 132 and a sound emitting module 133. There are a plurality of first accommodation cavities 124 in the watch body and the watch buckle 123 of the watch band 120 respectively. The sound pickup module 132 is located in the first accommodation cavity 124 of the watch body, and the sound emitting module 133 is located in the first accommodation cavity 124 of the watch buckle 123; or, the sound pickup module 132 is located in the first accommodation cavity 124 of the watch buckle 123, and the sound emitting module 133 is located in the first accommodation cavity 124 of the watch body; or, the sound emitting module 133 is simultaneously located in the first accommodation cavities 124 of the watch body and the watch buckle 123, or the sound pickup module 132 is located in the first accommodation cavities 124 of the watch body and the watch buckle 123.

[0150] It can be understood that there are various distribution manners of the sound pickup module 132 and the sound emitting module 133 in the watch band 120, and corresponding designs can be made according to actual needs, which are not limited herein.

[0151] In one possible implementation manner, referring to Figure 27 As shown, the sound module 130 includes a substrate 1322 and a plurality of microelectromechanical sound systems 1321 located on the substrate. The substrate 1322 is laid flat in the watch band 120, and the plurality of microelectromechanical sound systems 1321 are arranged at intervals on the substrate 1322. The plurality of microelectromechanical sound systems 1321 are electrically connected in series or in parallel. The microelectromechanical sound systems 1321 can be respectively located on the upper and lower sides of the substrate 1322, and at least some of the microelectromechanical sound systems 1321 are located on the side of the substrate 1322 close to the first opening 1241. The plurality of microelectromechanical sound systems 1321 are arranged at intervals on the substrate 1322, which can realize the superposition of sound signals and effectively improve the quality of sound signal pickup. In addition, the sound transmission membrane 1311 can integrally wrap the plurality of microelectromechanical sound systems 1321, simplifying the manufacturing process.

[0152] In one embodiment, the plurality of microelectromechanical sound systems 1321 are arranged at intervals on the substrate 1322. The microelectromechanical sound system 1321 can be a microelectromechanical sound pickup system or a microelectromechanical sound emitting system. The microelectromechanical sound pickup system is located on the upper base surface of the substrate 1322, and the microelectromechanical sound emitting system is located on the lower base surface of the substrate 1322. The microelectromechanical sound pickup system is located on the upper base surface of the substrate 1322, which is closer to the first opening 1241 than the microelectromechanical sound emitting system, facilitating the acquisition of sound.

[0153] In one embodiment, a plurality of MEMS (Micro-Electro-Mechanical System) sound systems 1321 are arranged at intervals on a substrate 1322. The MEMS sound systems 1321 can be MEMS sound pickup systems or MEMS sound generating systems. The MEMS sound pickup systems and the MEMS sound generating systems are distributed at intervals on the upper base surface of the substrate 1322, and the MEMS sound pickup systems and the MEMS sound generating systems are also distributed at intervals on the lower base surface of the substrate 1322.

[0154] In one embodiment, a plurality of MEMS sound systems 1321 are arranged at intervals on a substrate 1322. The MEMS sound systems 1321 can be MEMS sound pickup systems or MEMS sound generating systems. The MEMS sound pickup systems and the MEMS sound generating systems are distributed at intervals on the upper base surface of the substrate 1322, and MEMS sound generating systems are provided on both the lower base surfaces of the substrate 1322.

[0155] It can be understood that the multiple MEMS sound systems 1321 on the substrate 1322 can be arranged in various ways and can be designed accordingly according to actual needs, which are not limited herein.

[0156] This application provides a wearable device 10, including the watch band 120 described in any one of the above embodiments. The wearable device 10 includes a watch body 110 and a watch band 120. The watch body 110 is the main part of the wearable device 10 and is used to implement functions such as display and interaction of the wearable device 10. The watch band 120 is used to connect to the watch body 110, and thus the wearable device 10 is worn on the user's wrist.

[0157] A first accommodation cavity 124 is provided on the watch band 120. The first accommodation cavity 124 has a first opening 1241 on the surface of the watch band 120. The sound module 130 of the wearable device 10 is located in the first accommodation cavity 124. The sound module 130 includes a waterproof structure 131 and a sound module 130. The sound module 130 includes a sound pickup module 132 and / or a sound generating module 133. The sound module 130 is located in the first accommodation cavity 124.

[0158] The waterproof structure 131 is in contact with the sound module 130. At least part of the waterproof structure 131 covers and seals the first opening 1241. The waterproof structure 131 is closely attached to the inner side of the first opening 1241 and covers the first opening 1241. The covering area of the waterproof structure 131 at the first opening 1241 can be greater than or equal to the area of the first opening 1241, so as to ensure that the waterproof structure 131 can cover the first opening 1241, and finally fix the sound module 130 in the first accommodation cavity 124 to achieve a good seal between the first opening 1241 and the sound module 130.

[0159] In this application, the sound module 130 of the wearable device 10 is arranged outside the watch body 110, which avoids opening sound holes on the watch body 110 and improves the overall sealing performance of the watch body 110. The waterproof structure 131 contacts the sound module 130 to fix the sound module 130 in the first accommodation cavity 124, and the sound module 130 will not easily fall off. At the same time, the waterproof structure 131 is used instead of the waterproof film, and sound can effectively achieve the mutual transmission between the sound module 130 and the external environment, with less obstruction or attenuation, making the transmission and / or playback of sound clearer and more real. In addition, the waterproof structure 131 can also balance the pressure and acoustic resistance inside and outside the sound module 130, realizing the protection of the sound module 130 and the optimization of sound pickup. The watch body 110 and the watch band 120 have different connection methods, which can be designed according to different user needs, making the form of the wearable device 10 more diverse.

[0160] Continue to refer to Figure 22 , the watch body 110 has a second accommodation cavity 114, and a circuit board 1141 and a processor 1142 located on the circuit board 1141 are arranged in the second accommodation cavity 114. The processor 1142 may include one or more processing units. For example, the processor 1142 may include an application processor (AP), a modulation and demodulation processor, a graphics processing unit (GPU), an image signal processor (ISP), a controller, a video codec, a digital signal processor (DSP), a baseband processor, or a neural-network processing unit (NPU), etc. Among them, different processing units may be independent devices or integrated in one or more processors. The sound pickup module 132 needs to further transmit the processed electrical signal to the processor 1142 inside the watch body 110 to achieve signal transmission and communication. The connection method between the sound pickup module 132 and the processor 1142 may be a wired connection or a wireless connection.

[0161] When the connection between the sound pickup module 132 and the processor 1142 is a wired connection, a second electrical contact head 1161 is provided in the third opening 116a on the watch body 110, and the second electrical contact head 1161 is hermetically connected to the inner wall surface of the second channel 115. A second transmission line 117 is provided in the second channel 115. One end of the second transmission line 117 is electrically connected to the second electrical contact head 1161, and the other end of the second transmission line 117 is electrically connected to the processor 1142. Correspondingly, a first electrical contact head 1283 is provided in the second opening 1281 on the watch band 120, and the first electrical contact head 1283 is hermetically connected to the inner wall surface of the first channel 128. A first transmission line 1284 is provided in the first channel 128. One end of the first transmission line 1284 is electrically connected to the first electrical contact head 1283, and the other end of the first transmission line 1284 extends into the first accommodation cavity 124 and is electrically connected to the sound pickup module 132. The first electrical contact head 1283 on the watch band 120 is brought into contact with the second electrical contact head 1161 on the watch body 110 to realize the electrical connection between the sound pickup module 132 and the processor 1142.

[0162] The first electrical contact head 1283 and the second electrical contact head 1161 can be designed as spring connectors, and the first electrical contact head 1283 and the second electrical contact head 1161 can be telescoped along the axial direction. Among them, as Figure 24 shown, Figure 24 is a partial cross-sectional view of the first electrical contact head 1283 along Figure 2 at E-E in the figure. The first electrical contact head 1283 includes a first spring connector. The bottom of the first spring connector is electrically connected to one end of the first transmission line 1284, and the other end of the first transmission line 1284 extends into the first accommodation cavity 124 and is electrically connected to the sound pickup module 132. The second electrical contact head 1161 includes a second spring connector. The bottom of the second spring connector is electrically connected to one end of the second transmission line 117, and the other end of the second transmission line 117 is electrically connected to the processor 1142. The top of the first spring connector abuts against the top of the second spring connector to realize the electrical connection between the processor 1142 in the watch body 110 and the sound pickup module 132 in the watch band 120, so that the wearable device 10 has a sound pickup function. The first electrical contact head 1283 and the second electrical contact head 1161 can also be designed as other structures, for example, they can be designed as electrode structures, and the present application does not limit this.

[0163] In a possible implementation manner, please refer to Figure 28, the structure of this embodiment is substantially the same as that of the wearable device 10 in any of the above embodiments. A first accommodation cavity 124 is formed in the lug 113, and the sound module 130 is located in the first accommodation cavity. In this embodiment, the sound-permeable membrane 1311 and the sound pickup module 132 are located on the lug 113 of the wearable device 10. The watch body 110 includes a housing 111 and a lug 113, and the housing 111 and the lug 113 are fixedly connected or integrally formed; a first accommodation cavity 124 is provided on the lug, and the first accommodation cavity 124 has a first opening 1241 on the lug. The sound-permeable membrane 1311 and the sound pickup module 132 are located in the first accommodation cavity 124, and at least part of the sound-permeable membrane 1311 covers the first opening 1241. The sound-permeable membrane 1311 and the sound pickup module 132 are in contact to fix the sound pickup module 132 in the first accommodation cavity 124.

[0164] The sound pickup module 132 includes a first processing module 150, and the first processing module 150 is electrically connected to the sound pickup module 132. The first processing module 150 includes at least one of a filtering module, an amplifying module, a sampling module, a demodulating module, and a decoding module. The first processing module 150 processes the electrical signal. The first wireless communication module 1244 is further included in the lug 113. The first wireless communication module 1244 establishes a wireless communication connection with the second wireless communication module 119 to transmit the signal in the sound pickup module 132 to the processor 1142.

[0165] A battery module 1245 and a wireless charging module 1246 are further provided in the lug 113. The battery module 1245 is electrically connected to the sound pickup module 132, and the wireless charging module 1246 is electrically connected to the battery module 1245. By arranging the sound pickup module 132 in the lug 113, the waterproof problem caused by the opening of the watch body is prevented, and the electronic components inside the watch body 110 are not easily flooded. At the same time, the sound-permeable membrane 1311 has both the functions of sound transmission and waterproofing, and the sound is less blocked or attenuated, making the sound clearer and more real. In addition, the sound-permeable membrane 1311 can also balance the pressure and acoustic resistance inside and outside the sound pickup module 132, realizing the protection of the sound pickup module 132 and the optimization of sound pickup.

[0166] This application provides a wearable device 10, including the watch body 110 described in any of the above embodiments.

[0167] The wearable device 10 includes a watch body 110 and a watch band 120. The watch body 110 is the main part of the wearable device 10 and is used to realize functions such as display and interaction of the wearable device 10. The watch band 120 is used to connect to the watch body 110, and then the wearable device 10 is worn on the user's wrist.

[0168] The watch body 110 includes a housing 111 and lugs 113, and the housing 111 and the lugs 113 are fixedly connected or integrally formed. A first accommodation cavity 124 is formed in the lugs 113. The first accommodation cavity 124 has a first opening 1241 on the lugs 113, and the sound module 130 is located in the first accommodation cavity. A sound transmission membrane 1311 and a sound pickup module 132 are located in the first accommodation cavity 124. At least a part of the sound transmission membrane 1311 covers the first opening 1241, and the sound transmission membrane 1311 is in contact with the sound pickup module 132 to fix the sound pickup module 132 in the first accommodation cavity 124.

[0169] In this application, the sound module 130 of the wearable device 10 is arranged inside the lugs 113, avoiding the need to open sound holes in the structure of the watch body 110 for accommodating the circuit board, and improving the overall sealing performance of the watch body. The waterproof structure 131 is in contact with the sound module 130 to fix the sound module 130 in the first accommodation cavity 124, so that the sound module 130 will not easily fall off. At the same time, by using the waterproof structure 131 instead of the waterproof film, sound can effectively be transmitted between the sound module 130 and the external environment with less obstruction or attenuation, making the transmission and / or playback of sound clearer and more realistic. In addition, the waterproof structure 131 can also balance the pressure and acoustic resistance inside and outside the sound module 130, achieving the protection of the sound module 130 and the optimization of sound pickup.

[0170] This application provides a wearable device 10, including the watch band 120 and the watch body 110 described in any of the above embodiments. The sound module 130 can be located inside the lugs 113 of both the watch band 120 and the watch body 110 at the same time.

[0171] In this application, the sound module 130 of the wearable device 10 is arranged inside the watch body 110, avoiding the need to open sound holes in the structure of the watch body 110 for accommodating the circuit board, and improving the overall sealing performance of the watch body. At the same time, by using the waterproof structure 131 instead of the waterproof film, sound can effectively be transmitted between the sound module 130 and the external environment with less obstruction or attenuation, making the transmission and / or playback of sound clearer and more realistic. In addition, the waterproof structure 131 can also balance the pressure and acoustic resistance inside and outside the sound module 130, achieving the protection of the sound module 130 and the optimization of sound pickup.

[0172] The above embodiments are only used to illustrate the technical solutions of this application, rather than to limit them; although this application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application, and should all be included in the protection scope of this application.

Claims

1. A watch band, characterized in that, the watch band includes a sound module disposed within the watch band and a waterproof structure disposed on the surface of the watch band, the sound module includes a sound pickup module and / or a sound emitting module, and the waterproof structure is configured to transmit sound.

2. The watch band according to claim 1, characterized in that, a first receiving cavity is provided on the watch band, the first receiving cavity has a first opening on the surface of the watch band, the sound module is disposed within the first receiving cavity, and at least a part of the waterproof structure covers and seals the first opening.

3. The watch band according to claim 2, characterized in that, a part of the waterproof structure is filled between the side wall of the first receiving cavity and the sound module.

4. The watch band according to claim 2, characterized in that, the waterproof structure is located on a side of the sound module facing the first opening.

5. The watch band according to any one of claims 1-4, characterized in that, the material for making the waterproof structure includes one or more mixtures of natural rubber, neoprene, butyl rubber, and polyurethane rubber.

6. The watch band according to any one of claims 1-5, characterized in that, the waterproof structure has an airtight property.

7. The watch band according to any one of claims 1-6, characterized in that, at least a part of the waterproof structure is disposed on the outer surface of the watch band.

8. The watch band according to any one of claims 1-7, characterized in that, at least a part of the waterproof structure is disposed on the side surface of the watch band.

9. The watch band according to any one of claims 1-8, characterized in that, the watch band has a first connection end for connecting to a watch body, and the sound module is disposed near the first connection end.

10. The watch band according to any one of claims 1-9, characterized in that, the watch band includes a band body and a watch buckle, and the sound module is disposed within the band body and / or the watch buckle.

11. The watch band according to any one of claims 1-10, characterized in that, the sound module is in a plate shape, and the thickness direction of the sound module is consistent with the thickness direction of the watch band.

12. The watch band according to any one of claims 1-11, characterized in that, the waterproof structure includes a sound transmission film, the sound module includes a substrate and a microelectromechanical sound system, and the microelectromechanical sound system is fixed on the base surface of the substrate; the sound transmission film covers the outer surface of the microelectromechanical sound system, and the sound transmission film is hermetically connected to the base surface.

13. The watch band according to any one of claims 1-12, characterized in that, the waterproof structure includes a sound transmission film, and the sound transmission film covers the sound module.

14. The watch band according to claim 12 or 13, characterized in that, the microelectromechanical sound system includes at least one of a capacitive microelectromechanical sound system and a piezoelectric microelectromechanical sound system.

15. The watch band according to any one of claims 1-14, characterized in that, the watch band includes a connection end for connecting to a watch body; A first channel is provided inside the watch band. One end of the first channel has a second opening on the end face of the connection end, and the other end of the first channel communicates with the first accommodation cavity; A first electrical contact head is provided in the second opening. The first electrical contact head is sealingly connected to the inner wall surface of the first channel. The first electrical contact head is used to contact and electrically connect with the second electrical contact head of the watch body. A first transmission line is provided in the first channel. One end of the first transmission line is electrically connected to the first electrical contact head, and the other end of the first transmission line extends into the first accommodation cavity and is electrically connected to the sound module.

16. The watch band according to claim 15, characterized in that, the watch band has a spring bar, and the spring bar is the first electrical contact head.

17. The watch band according to claim 15 or 16, characterized in that, the watch band includes a plurality of the first channels, and the plurality of first channels form the second openings corresponding to the plurality of first electrical contact heads on the end face of the connection end; a power line is provided in at least one of the first channels, and both ends of the power line are electrically connected to the first electrical contact head and the sound module respectively.

18. The watch band according to any one of claims 1-17, characterized in that, a first wireless communication module is further provided inside the watch band. The first wireless communication module is electrically connected to the sound module, and the first wireless communication module is used to communicate and connect with a second wireless communication module inside the watch body.

19. The watch band according to any one of claims 1-18, characterized in that, a battery module and a wireless charging module are further provided inside the watch band. The battery module is electrically connected to the sound module, and the wireless charging module is electrically connected to the battery module.

20. The watch band according to any one of claims 1-19, characterized in that, a first processing module is further included inside the watch band. The first processing module is electrically connected to the sound module, and the first processing module includes at least one of a filtering module, an amplifying module, a sampling module, a demodulating module and a decoding module.

21. The watch band according to any one of claims 1-20, characterized in that, a plurality of sound modules are provided inside the watch band, and the plurality of sound modules are arranged at intervals.

22. The watch band according to any one of claims 1-21, characterized in that, the sound module includes a substrate and a plurality of microelectromechanical sound systems located on the substrate. The substrate is laid flat inside the watch band, and the plurality of microelectromechanical sound systems are arranged at intervals.

23. A wearable device, characterized in that, it includes a watch body and the watch band according to any one of claims 1-22 above. The watch body and the watch band are of an integral structure or are detachably connected.

24. The wearable device according to claim 23, characterized in that, the watch body and the watch band are detachably connected. The watch body has a second accommodation cavity, and a circuit board and a processor located on the circuit board are provided inside the second accommodation cavity; The table body has a second channel. One end of the second channel has a third opening on the surface of the table body. The other end of the second channel communicates with the second accommodation cavity. A second electrical contact head is provided in the third opening. The second electrical contact head is sealingly connected to the inner wall surface of the second channel. The second electrical contact head is in electrical contact connection with the first electrical contact head provided on the watch band; A second transmission line is provided in the second channel. One end of the second transmission line is electrically connected to the second electrical contact head, and the other end of the second transmission line is electrically connected to the processor.

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