A wearable device

Abstract

The present invention discloses a wearable device, which relates to the technical field of electronic intelligent devices. The wearable device includes a housing, a power supply device, a power generation device, and a power unit. The power supply device is used to supply power to the electrical components in the wearable device. The power generation device is used to convert kinetic energy into electrical energy when rotating. The power unit includes a ratchet, a rotor rotatable about an eccentric shaft, and a transmission assembly. The transmission assembly is provided with a first pawl and a second pawl, and the first pawl and the second pawl respectively engage with different positions of the ratchet. When the rotor rotates clockwise, the first pawl pushes the ratchet to rotate in one direction, and the second pawl slides relative to the ratchet. When the rotor rotates counterclockwise, the first pawl slides relative to the ratchet, and the second pawl pushes the ratchet to rotate in one direction. The wearable device provided by the present invention can automatically charge the power supply device through the power unit and the power generation device during use, which can effectively extend the battery life of the wearable device and reduce the frequency of charging the wearable device.

Description

Technical Field

[0001] The present invention relates to the technical field of electronic intelligent devices, and more specifically, to a wearable device. Background Art

[0002] In the prior art, smart watches are generally powered by batteries to maintain the normal operation of the wearable device. Common charging methods include magnetic, plug-in, and wireless charging. Due to the limited capacity of the battery, the battery needs to be charged regularly.

[0003] In addition, existing smart watches have more and more functions, and the power consumption per unit time is also increasing, resulting in a shortened battery life of smart watches, which requires regular charging. During the charging process, the smart watch needs to be equipped with a suitable charging stand, which brings inconvenience to users.

[0004] In summary, how to extend the battery life of wearable devices is an urgent problem to be solved by those skilled in the art. Summary of the Invention

[0005] In view of this, the purpose of the present invention is to provide a wearable device with a built-in power generation device and a power device. When the wearer drives the wearable device to move, the power generation device will automatically generate electricity and store the electrical energy in the power supply device, which can effectively extend the battery life of the wearable device and reduce the charging frequency of the wearable device.

[0006] In order to achieve the above object, the present invention provides the following technical solutions:

[0007] A wearable device, comprising:

[0008] case;

[0009] a power supply device, disposed in the housing;

[0010] a power generation device disposed in the housing and configured to convert kinetic energy into electrical energy during rotation, wherein the power generation assembly is electrically connected to the power supply device to store the electrical energy generated by the power generation device in the power supply device;

[0011] a power device disposed within the housing, the power device comprising a ratchet, an oscillating weight rotatable about an eccentric shaft, and a transmission assembly, the ratchet being connected to the generator to drive the generator to rotate; the transmission assembly being provided with a first pawl and a second pawl, the first pawl and the second pawl respectively engaging with different positions of the ratchet;

[0012] When the oscillating weight rotates clockwise, the first pawl pushes the ratchet wheel to rotate in one direction, and the second pawl slides relative to the ratchet wheel; when the oscillating weight rotates counterclockwise, the first pawl slides relative to the ratchet wheel, and the second pawl pushes the ratchet wheel to rotate in one direction.

[0013] Optionally, the transmission assembly includes a gear set and a push rod eccentrically and rotatably arranged on the gear set, and the gear set is driven to rotate by the oscillating weight; the first pawl and the second pawl are both arranged on the push rod.

[0014] Optionally, the push rod is an elastic rod, and the elastic force of the elastic rod is used to make the first pawl and the second pawl engage with the ratchet.

[0015] Optionally, the push rod is a V-shaped structure, the first pawl is arranged on the inner side of the first side arm of the V-shaped structure, and the second pawl is arranged on the inner side of the second side arm of the V-shaped structure.

[0016] Optionally, the gear set includes a first gear and a second gear;

[0017] The first gear and the oscillating weight are coaxial and rotate synchronously, the second gear is meshed with the first gear for transmission, and the push rod is eccentrically and rotatably arranged on the second gear.

[0018] Optionally, the diameter of the first gear is smaller than the diameter of the second gear.

[0019] Optionally, the first gear is arranged between the ratchet and the second gear.

[0020] Optionally, a mounting bracket is further included which is arranged in the housing, and the oscillating weight, the first gear, the second gear and the ratchet are all rotatably mounted on the mounting bracket.

[0021] Optionally, the power generation device includes:

[0022] magnets, used to generate magnetic fields;

[0023] The coil assembly is rotatably arranged to cut the magnetic flux lines of the magnetic field during rotation to generate current;

[0024] a commutator electrically connected to the coil assembly, the commutator being configured to commutate the current when the coil assembly rotates;

[0025] A brush has one end electrically connected to the commutator and the other end electrically connected to the power supply device, so as to store the current generated by the coil assembly in the power supply device.

[0026] Optionally, the magnet includes a first magnet for providing an N pole and a second magnet for providing an S pole, and the first magnet and the second magnet are both arc-shaped structures, and the coil assembly is arranged in a space enclosed by the first magnet and the second magnet.

[0027] Optionally, the shell includes an upper shell, a middle shell and a lower shell, the middle shell is an annular structure, the upper shell is buckled on the upper part of the middle shell, and the lower shell is buckled on the lower part of the middle shell;

[0028] The power supply device, the power generation device and the power device are all arranged in a space enclosed by the upper shell, the middle shell and the lower shell.

[0029] During use of the wearable device provided by the present invention, under normal circumstances, power is supplied to the electrical components in the wearable device through the power supply device; when the wearer drives the wearable device to move while wearing or using the wearable device, the oscillating weight of the power device in the shell will rotate, and during the rotation of the oscillating weight, the ratchet will be driven to rotate through the transmission component. When the oscillating weight rotates clockwise, the first pawl pushes the ratchet to rotate in one direction, and the second pawl slides relative to the ratchet; when the oscillating weight rotates counterclockwise, the first pawl slides relative to the ratchet, and the second pawl pushes the ratchet to rotate in one direction, so that the ratchet rotates in one direction regardless of whether the oscillating weight swings counterclockwise or clockwise. The ratchet drives the generator to rotate during the rotation process, and the generator converts kinetic energy into electrical energy during the rotation process. The generated electrical energy can be stored in the power supply device, thereby charging the power supply device.

[0030] Compared with the existing technology, the wearable device provided by the present invention can automatically charge the power supply device through the power device and the power generation device during use, which can effectively extend the battery life of the wearable device and reduce the frequency of charging of the wearable device; in addition, in situations where it is inconvenient to connect external devices for charging, such as in the wild, the power device and the power generation device can provide power to the power supply device to maintain the normal function of the wearable device. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are merely embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0032] Figure 1 This is an exploded schematic diagram of a specific embodiment of the wearable device provided by the present invention;

[0033] Figure 2 This is a schematic diagram of the structure of the wearable device provided by the present invention;

[0034] Figure 3 It is a structural diagram of the power unit;

[0035] Figure 4 It is a top view schematic diagram of the power unit;

[0036] Figure 5 This is a schematic diagram of the structure of the oscillating weight in the power device rotating clockwise;

[0037] Figure 6 This is a schematic diagram of the structure of the oscillating weight in the power device rotating counterclockwise;

[0038] Figure 7 is a schematic structural diagram of a power generation device;

[0039] Figure 8 for Figure 7 Schematic diagram of the explosion of the power generation device;

[0040] Figure 9 is a schematic top view of a power generation device;

[0041] Figure 10 Schematic diagram of the structure of the push rod.

[0042] Figures 1-10 middle:

[0043] 101 is the upper shell, 102 is the middle shell, 103 is the lower shell, 2 is the power supply device, 3 is the power generation device, 301 is the commutator bracket, 302 is the first brush, 303 is the coil, 304 is the wire, 305 is the first magnet, 306 is the second brush, 307 is the commutator, 308 is the coil bracket, 309 is the second magnet, 310 is the motor shell, 4 is the power device, 401 is the connecting shaft, 402 is the ratchet, 403 is the first gear, 404 is the eccentric shaft, 405 is the rotating shaft, 406 is the second gear, 407 is the push rod, 4071 is the first side arm, 4072 is the second side arm, 4073 is the first pawl, 4074 is the second pawl, 408 is the oscillating weight, and 5 is the mounting bracket. DETAILED DESCRIPTION

[0044] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0045] The core of the present invention is to provide a wearable device with a built-in power generation device and a power device. When the wearer drives the wearable device to move, the power generation device will automatically generate electricity and store the electrical energy in the power supply device, which can effectively extend the battery life of the wearable device and reduce the charging frequency of the wearable device.

[0046] Please refer to Figures 1-10 .

[0047] This specific embodiment discloses a wearable device including a housing, a power supply device 2, a power generation device 3 and a power device 4; the power supply device 2 is arranged in the housing and is used to power the electrical components in the wearable device; the power generation device 3 is arranged in the housing and is used to convert kinetic energy into electrical energy when rotating, and the power generation component is electrically connected to the power supply device 2 to store the electrical energy generated by the power generation device 3 in the power supply device 2; the power device 4 is arranged in the housing and includes a ratchet 402, an oscillating weight 408 rotatable around an eccentric shaft 404 and a transmission component, the ratchet 402 and The generator 3 is connected to the drive assembly to drive the generator 3 to rotate; the transmission assembly is provided with a first pawl 4073 and a second pawl 4074, and the first pawl 4073 and the second pawl 4074 respectively engage with different positions of the ratchet 402; when the oscillating weight 408 rotates clockwise, the first pawl 4073 pushes the ratchet 402 to rotate in one direction, and the second pawl 4074 slides relative to the ratchet 402; when the oscillating weight 408 rotates counterclockwise, the first pawl 4073 slides relative to the ratchet 402, and the second pawl 4074 pushes the ratchet 402 to rotate in one direction.

[0048] The wearable device mentioned in this application document can be a wrist-worn device such as a bracelet or a watch, or other electronic devices such as a neck-worn wireless headset. The specific details will be determined based on actual conditions and will not be elaborated here.

[0049] The electric energy generated by the power generation device 3 can be transmitted to the power supply device 2 for storage. During specific use, the power supply device 2 can be set as a battery and can be charged through external wired or wireless devices.

[0050] During use of the wearable device provided in this specific embodiment, under normal circumstances, power is supplied to the electrical components in the wearable device through the power supply device 2; when the wearer drives the wearable device to move while wearing or using the wearable device, the oscillating weight 408 of the power device 4 in the shell rotates, and during the rotation of the oscillating weight 408, the ratchet 402 is driven to rotate through the transmission component. When the oscillating weight 408 rotates clockwise, the first pawl 4073 pushes the ratchet 402 to rotate in one direction, and the second pawl 4074 slides relative to the ratchet 402; when the oscillating weight 408 rotates counterclockwise, the first pawl 4073 slides relative to the ratchet 402, and the second pawl 4074 pushes the ratchet 402 to rotate in one direction, so that the ratchet 402 rotates in one direction regardless of whether the oscillating weight 408 swings counterclockwise or clockwise. During the rotation of the ratchet 402, the power generating device 3 is driven to rotate. The power generating device 3 converts kinetic energy into electrical energy during the rotation. The generated electrical energy can be stored in the power supply device 2, thereby charging the power supply device 2.

[0051] Compared with the existing technology, the wearable device provided in this specific embodiment can automatically charge the power supply device 2 through the power device 4 and the power generation device 3 during use, which can effectively extend the battery life of the wearable device and reduce the frequency of charging the wearable device; in addition, in situations where it is inconvenient to connect external devices for charging, such as in the wild, the power device 4 and the power generation device 3 can provide power to the power supply device 2 to maintain the normal function of the wearable device.

[0052] In a specific embodiment, if Figures 3 to 6 As shown, the transmission assembly can include a gear set and a push rod 407 eccentrically and rotatably arranged on the gear set. The gear set is driven to rotate by the oscillating weight 408, and the first pawl 4073 and the second pawl 4074 are both arranged on the push rod 407.

[0053] In the actual setting process, in solution one, the push rod 407 can be set as an integrated structure, and the first pawl 4073 and the second pawl 4074 are both set on the push rod 407; Figure 10 As shown, the push rod 407 is a V-shaped structure, the first pawl 4073 is arranged on the inner side of the first side arm 4071 of the V-shaped structure, and the second pawl 4074 is arranged on the inner side of the second side arm 4072 of the V-shaped structure.

[0054] When the rotor 408 Figure 5 When the push rod 407 rotates clockwise in the direction shown, the transmission assembly drives the push rod 407 to rotate eccentrically in the counterclockwise direction. The first pawl 4073 of the push rod 407 pushes the ratchet 402 to rotate counterclockwise during the eccentric rotation. During the rotation of the ratchet 402, the second pawl 4074 slides relative to the ratchet 402. Figure 6When the push rod 407 rotates counterclockwise as shown, the transmission assembly drives the push rod 407 to rotate eccentrically clockwise. The second pawl 4074 of the push rod 407 pushes the ratchet 402 to rotate counterclockwise during the eccentric rotation. When the ratchet 402 rotates, the first pawl 4073 slides relative to the ratchet 402.

[0055] In this specific embodiment, the push rod 407 has a simple structure and is easy to process. By setting the push rod 407 to a V-shaped structure and arranging the first pawl 4073 and the second pawl 4074 on the inner sides of the two side arms of the V-shaped push rod 407, it can be achieved that no matter whether the push rod 407 rotates eccentrically counterclockwise or clockwise, it will drive the ratchet 402 to rotate in one direction. The unidirectional rotation control of the ratchet 402 is achieved with a simple structure, which can effectively reduce costs. In addition, no matter whether the oscillating weight 408 rotates counterclockwise or clockwise, the transmission component will convert the kinetic energy of the oscillating weight 408 into the kinetic energy of the unidirectional rotation of the ratchet 402, which can effectively improve the efficiency of energy conversion.

[0056] Option 2: The push rod 407 can be set as an integrated structure, and the first pawl 4073 and the second pawl 4074 are both set on the push rod 407; the push rod 407 is a C-shaped structure, the first pawl 4073 is set at one end of the inner wall of the C-shaped structure, and the second pawl 4074 is set at the other end of the inner wall of the C-shaped structure; the C-shaped structure is partially wrapped around the outer periphery of the ratchet 402, so that the first pawl 4073 and the second pawl 4074 are respectively engaged with different positions of the pawl.

[0057] Option three, the push rod 407 can be set to a split structure, so that the push rod 407 includes a first rod portion eccentrically and rotatably arranged on the gear group and a second rod portion eccentrically and rotatably arranged on the gear group, the first pawl 4073 is arranged on the inner side wall of the first rod portion, and the second pawl is arranged on the inner side wall of the second rod portion, and the first pawl 4073 and the second pawl 4074 are respectively engaged with different positions of the pawls.

[0058] During actual use, when the rotor 408 rotates clockwise, it drives the push rod 407 to rotate eccentrically counterclockwise via the transmission assembly. During this eccentric rotation, the first pawl 4073 of the first rod portion pushes the ratchet 402 to rotate counterclockwise. As the ratchet 402 rotates, the second pawl 4074 slides relative to the ratchet 402. When the rotor 408 rotates counterclockwise, it drives the push rod 407 to rotate eccentrically clockwise via the transmission assembly. During this eccentric rotation, the second pawl 4074 of the second rod portion pushes the ratchet 402 to rotate counterclockwise. As the ratchet 402 rotates, the first pawl 4073 slides relative to the ratchet 402.

[0059] Preferably, the push rod 407 is an elastic rod, and the first pawl 4073 and the second pawl 4074 engage with the ratchet 402 by relying on the elastic force of the push rod 407 itself. During the process of the first pawl 4073 and the second pawl 4074 engaging with the ratchet 402, the elastic force of the push rod 407 itself can improve the engagement tightness of the first pawl 4073 and the second pawl 4074 with the ratchet 402, thereby preventing the first pawl 4073 and the second pawl 4074 from disengaging from the ratchet 402.

[0060] In another embodiment, an elastic member may be provided on the push rod 407. The push rod 407 itself may not be elastic. When the push rod 407 is a V-shaped structure or a C-shaped structure, an elastic member is provided in the middle of the V-shaped structure to connect the two ends of the inner side wall of the V-shaped structure or the C-shaped structure, so that the two ends of the inner side wall of the V-shaped structure or the C-shaped structure tend to be relatively close to each other, so that the first pawl 4073 and the second pawl 4074 provided on the inner side wall of the V-shaped structure or the C-shaped structure engage with the ratchet 402. Specifically, the elastic member in this embodiment may be a spring, an elastic rope, or the like.

[0061] In another embodiment, the elastic member can be set as a spring sheet, and one end of the spring sheet is fixed to the shell, and the other end is pressed against the outside of the push rod 407, applying an elastic force toward the ratchet 402 to the push rod 407, so that the first pawl 4073 and the second pawl 4074 on the push rod 407 engage with the ratchet 402. During the rotation of the ratchet 402, the push rod 407 squeezes the spring sheet outward, causing the spring sheet to undergo elastic deformation, so that the first pawl 4073 or the second pawl 4074 slides relative to the ratchet 402.

[0062] In a specific embodiment, the gear set includes a first gear 403 and a second gear 406; the first gear 403 is coaxial with the oscillating weight 408 and rotates synchronously, the second gear 406 is meshed with the first gear 403 for transmission, and the push rod 407 is eccentrically and rotatably arranged on the second gear 406.

[0063] like Figure 3 As shown, the oscillating weight 408 is rotatably arranged about the eccentric shaft 404, the first gear 403 is coaxially arranged with the eccentric shaft 404, the second gear 406 is rotatable about the rotating shaft 405, the second gear 406 is meshed with the first gear 403, and the push rod 407 is eccentrically and rotatably arranged on the second gear 406; the ratchet 402 rotates synchronously with the connecting shaft 401 and is coaxially arranged, and the two pawls of the push rod 407 are respectively meshed with different positions of the ratchet 402.

[0064] In the actual use process, when the rotor 408 is Figure 5When the gear 407 rotates clockwise in the direction shown, the first gear 403 is driven to rotate clockwise around the eccentric shaft 404. During the rotation process, the first gear 403 drives the second gear 406 to rotate counterclockwise around the rotation shaft 405. The push rod 407 is driven by the second gear 406 to swing counterclockwise eccentrically. At this time, the first pawl 4073 pushes the ratchet 402 to rotate counterclockwise. The ratchet 402 slides relative to the second pawl 4074 during the counterclockwise rotation. When the oscillating weight 408 is rotated as shown in FIG. Figure 6 When the shown direction rotates counterclockwise, it will drive the first gear 403 to rotate counterclockwise around the eccentric shaft 404. During the rotation, the first gear 403 drives the second gear 406 to rotate clockwise around the rotating shaft 405. The push rod 407 swings eccentrically clockwise under the drive of the second gear 406. At this time, the second pawl 4074 pushes the ratchet 402 to rotate counterclockwise, and the ratchet 402 slides relative to the first pawl 4073 during the counterclockwise rotation. During the counterclockwise rotation of the ratchet 402, it will drive the connecting shaft 401 to rotate counterclockwise, and the connecting shaft 401 drives the generator 3 to rotate to generate electrical energy.

[0065] Compared with the prior art, the gear set in this specific embodiment is provided with only two gears, with a small number of gears, a simple structure, and easy assembly.

[0066] Based on the above embodiment, the diameter of the first gear 403 can be made smaller than the diameter of the second gear 406, which facilitates the installation of the push rod 407 on the second gear 406, and during the rotation of the first gear 403, the circumferential rotation speed of the second gear 406 is smaller than that of the first gear 403, so that the rotation angle of the second gear 406 can be more accurately controlled to facilitate the control of the rotation angle of the push rod 407.

[0067] Preferably, the first gear 403 is arranged between the ratchet 402 and the second gear 406. During the installation process, the push rod 407 can span the upper part of the first gear 403 to avoid occupying additional horizontal space and make the internal space layout of the wearable device more reasonable.

[0068] Of course, the second gear 406 may also be disposed between the first gear 403 and the ratchet 402 , depending on the actual situation.

[0069] like Figure 1 As shown, the wearable device further includes a mounting bracket 5 disposed within the housing, and the rotor 408, first gear 403, second gear 406, and ratchet 402 are rotatably mounted on the mounting bracket 5. Specifically, an eccentric shaft 404 can be disposed on the mounting bracket 5, and the rotor 408 and first gear 403 can both be mounted on the eccentric shaft 404, so that the rotor 408 drives the first gear 403 to rotate synchronously during rotation; a rotating shaft 405 is fixedly disposed on the mounting bracket 5, and the second gear 406 is rotatably sleeved on the rotating shaft 405.

[0070] In one specific embodiment, the power generation device 3 includes a magnet, a coil assembly, a commutator 307 and a brush; the magnet is used to generate a magnetic field; the coil assembly can be rotatably arranged and cuts the magnetic flux lines of the magnetic field during rotation to generate current; the commutator 307 is electrically connected to the coil assembly and is used to commutate the current when the coil assembly rotates; one end of the brush is electrically connected to the commutator 307, and the other end is electrically connected to the power supply device 2 to store the current generated by the coil assembly in the power supply device 2.

[0071] like Figure 8 As shown, the magnet includes a first magnet 305 for providing an N pole and a second magnet 309 for providing an S pole, and the first magnet 305 and the second magnet 309 are both arc-shaped structures, and the coil assembly is arranged in the space enclosed by the first magnet 305 and the second magnet 309; the brush includes a first brush 302 and a second brush 306, and the first brush 302 and the second brush 306 are electrically connected to the power supply device 2 through a wire 304; the first brush 302 and the second brush 306 are arranged opposite to each other, so as to be electrically connected to both sides of the commutator 307 during the rotation of the commutator 307, the coil assembly includes a coil bracket 308 and a coil 303 wound on the coil bracket 308, the coil 303 is electrically connected to the commutator 307, and the commutator 307 is installed on the commutator bracket 301; the coil bracket 308 and the commutator bracket 301 are both connected to the power device 4 Figure 3 The connecting shaft 401 shown can drive the coil bracket 308 and the commutator bracket 301 to rotate during the rotation of the ratchet 402. The coil 303 cuts the magnetic lines of force during the rotation to generate current. The brush and commutator 307 contact to conduct the current and ensure that the current direction is consistent. The current is transmitted to the battery storage through the wire 304 connected to the brush.

[0072] The first magnet 305 and the second magnet 309 may also be rectangular structures, which is determined according to actual conditions.

[0073] Preferably, the power generation device 3 can be set as a generator, which includes a motor housing 310. During the specific installation process, the first magnet 305, the second magnet 309, the first brush 302, and the second brush are fixedly installed on the motor housing 310, and the coil bracket 308 and the commutator bracket 301 are connected to the connecting shaft 401 of the power device 4.

[0074] In one specific embodiment, when the wearable device is a smartwatch, the housing can include an upper housing 101, a middle housing 102, and a lower housing 103. The middle housing 102 is an annular structure, with the upper housing 101 buckled onto the upper portion of the middle housing 102, and the lower housing 103 buckled onto the lower portion of the middle housing 102. The power supply unit 2, the generator unit 3, and the power unit 4 are all disposed within the space enclosed by the upper housing 101, the middle housing 102, and the lower housing 103. During use of the smartwatch, the wearer's arm movements can drive the rotor 408 within the power unit 4 to rotate, thereby driving the coil 303 of the generator unit 3 to generate electricity, thereby solving the battery life issue of the smartwatch.

[0075] Of course, the housing may also have other structural forms, which will not be described here in detail.

[0076] The “first” and “second” in the first magnet 305 and the second magnet 309 , the first brush 302 and the second brush 306 mentioned in this application document are only used to distinguish the different positions and there is no order of precedence.

[0077] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other. Any combination of all the embodiments provided by the present invention is within the scope of protection of this invention and will not be described in detail here.

[0078] The above is a detailed introduction to the wearable device provided by the present invention. This article uses specific examples to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method of the present invention and its core ideas. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the present invention, several improvements and modifications can be made to the present invention, and these improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. A wearable device, characterized in that: include: case; A power supply device (2) is arranged in the housing; a power generation device (3) disposed in the housing and configured to convert kinetic energy into electrical energy during rotation, the power generation device (3) being electrically connected to the power supply device (2) so as to store the electrical energy generated by the power generation device (3) in the power supply device (2); A power device (4) is arranged in the housing, the power device (4) comprising a ratchet (402), an oscillating weight (408) rotatable around an eccentric shaft (404), and a transmission assembly, the ratchet (402) being connected to the power generation device (3) to drive the power generation device (3) to rotate; the transmission assembly is provided with a first pawl (4073) and a second pawl (4074), and the first pawl (4073) and the second pawl (4074) are respectively engaged with different positions of the ratchet (402); When the oscillating weight (408) rotates clockwise, the first pawl (4073) pushes the ratchet (402) to rotate in one direction, and the second pawl (4074) slides relative to the ratchet (402); when the oscillating weight (408) rotates counterclockwise, the first pawl (4073) slides relative to the ratchet (402), and the second pawl (4074) pushes the ratchet (402) to rotate in one direction.

2. The wearable device according to claim 1, wherein: The transmission assembly includes a gear set and a push rod (407) eccentrically and rotatably arranged on the gear set, and the gear set is driven to rotate by the oscillating weight (408); the first pawl (4073) and the second pawl (4074) are both arranged on the push rod (407).

3. The wearable device according to claim 2, wherein: The push rod (407) is an elastic rod, and the elastic force of the elastic rod is used to make the first pawl (4073) and the second pawl (4074) engage with the ratchet (402).

4. The wearable device according to claim 3, wherein: The push rod (407) is a V-shaped structure, the first pawl (4073) is arranged on the inner side of the first side arm (4071) of the V-shaped structure, and the second pawl (4074) is arranged on the inner side of the second side arm (4072) of the V-shaped structure.

5. The wearable device according to claim 2, wherein: The gear set includes a first gear (403) and a second gear (406); The first gear (403) and the oscillating weight (408) are coaxial and rotate synchronously, the second gear (406) is meshed with the first gear (403) for transmission, and the push rod (407) is eccentrically and rotatably arranged on the second gear (406).

6. The wearable device according to claim 5, wherein: The first gear (403) is disposed between the ratchet (402) and the second gear (406).

7. The wearable device according to claim 5, wherein: It also includes a mounting bracket (5) arranged in the housing, and the oscillating weight (408), the first gear (403), the second gear (406) and the ratchet (402) are all rotatably mounted on the mounting bracket (5).

8. The wearable device according to any one of claims 1 to 7, wherein: The power generation device (3) comprises: magnets, used to generate magnetic fields; The coil assembly is rotatably arranged to cut the magnetic flux lines of the magnetic field during rotation to generate current; a commutator (307), electrically connected to the coil assembly, the commutator (307) being used to commutate the current when the coil assembly rotates; A brush has one end electrically connected to the commutator (307) and the other end electrically connected to the power supply device (2) so as to store the current generated by the coil assembly in the power supply device (2).

9. The wearable device according to claim 8, wherein: The magnet comprises a first magnet (305) for providing an N pole and a second magnet (309) for providing an S pole, and the first magnet (305) and the second magnet (309) are both arc-shaped structures, and the coil assembly is arranged in a space enclosed by the first magnet (305) and the second magnet (309).

10. The wearable device according to any one of claims 1 to 7, wherein: The shell comprises an upper shell (101), a middle shell (102) and a lower shell (103); the middle shell (102) is an annular structure; the upper shell (101) is buckled on the upper part of the middle shell (102); and the lower shell (103) is buckled on the lower part of the middle shell (102); The power supply device (2), the power generation device (3) and the power device (4) are all arranged in a space enclosed by the upper shell (101), the middle shell (102) and the lower shell (103).

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