WO2018196551A1 - Self-generating apparatus and smart wearable device - Google Patents

Abstract

A self-generating apparatus comprises a substrate (100) and a power generation module. The power generation module is rotatably disposed on the substrate (100). The power generation module comprises a first step-up gear (230), and a sun gear (120) is fixedly disposed on the substrate (100). The sun gear (120) meshes with the first step-up gear (230), and the first step-up gear (230) is rotatable along the sun gear (120). Compared with traditional pendulum-type power generation mechanisms, the self-generating device uses the power generation module instead of a pendulum to generate electricity, thereby reducing the thickness of the mechanism and the number of parts and simplifying the structure of the mechanical parts. Moreover, a single coil winding mode is replaced with a double coil winding mode, effectively reducing the overall thickness of coil windings and increasing power generation.

Description

Self-generating device and smart wearable device

The present application claims priority to Chinese Patent Application No. 200910286115.5, entitled "Self-Generation Device and Smart Wearable Device", filed on April 27, 2017, the entire contents of which is incorporated herein by reference. .

Technical field

The invention relates to a self-generating device and a smart wearable device.

Background technique

In the related art, the pendulum type power generating mechanism includes a substrate and a weight, a transmission member, a coil, a permanent magnet and a soft magnetic body disposed on the substrate; the weight is connected to the permanent magnet through the transmission member, and can drive the permanent magnet to rotate; the permanent magnet The two magnetic poles are located in the same plane of rotation, and the rotating surfaces of the two poles are perpendicular to the axis of rotation of the permanent magnet; the permanent magnets are located in the soft magnet at the same time; the coil is adjacent to the soft magnet, and the axial direction of the coil is perpendicular to the permanent magnet The axis of rotation is vertical; the control board is electrically connected to both the coil and the battery.

Summary of the invention

The present invention is directed to solving the above technical problems at least to some extent or at least providing a useful commercial choice. Accordingly, it is an object of the present invention to provide a self-generating device that utilizes a power generation module instead of a pendulum to generate power compared to a conventional pendulum power generation mechanism, thereby reducing the thickness and parts of the mechanism. The quantity simplifies the structure of the mechanical part. At the same time, changing the single coil winding mode to the double coil winding mode can effectively reduce the overall thickness of the coil winding and increase the power generation. In addition, since the coil thickness of the coil winding is reduced, the electromagnetic conversion efficiency of the self-generating device is improved.

A self-generating device provided by the present invention includes: a substrate; a power generation module, the power generation module is rotatably disposed on the substrate, and the power generation module includes a first speed increasing gear a sun gear fixedly disposed on the base plate, the sun gear meshing with the first speed increasing gear, and the first speed increasing gear rotatable along the sun gear.

According to the self-generating device provided by the present invention, the self-generating device uses a power generation module instead of a pendulum to generate electricity, thereby reducing the thickness of the mechanism and the number of parts, and simplifying the structure of the mechanical part. purpose.

In addition, according to the above self-generating device of the present invention, it is also possible to have the following technical features:

The self-generating device further includes a fixed shaft, a bottom end of the fixed shaft is coupled to the substrate, and the center gear is fixedly disposed on the substrate through the fixed shaft.

The power generating module further includes a first clamping plate, the first speed increasing gear is rotatably disposed on the first clamping plate, and the first clamping plate is rotatably disposed on the substrate, the first clamping plate A boss is disposed at a position of the rotation axis thereof, and a first through hole is disposed in the boss, and the first plate is rotatably sleeved on the fixed shaft through the first through hole.

a second ball bearing is disposed in the first through hole, the second ball bearing is sleeved on the fixed shaft, and an inner ring of the second ball bearing is interference fit with the fixed shaft, An outer ring of the second ball bearing is in interference fit with the first through hole.

The power generation module further includes a second speed increasing gear, an output gear, the first speed increasing gear, the second speed increasing gear, the output gear including a wheel and a gear shaft, and the second speed increasing gear And respectively meshing with the first speed increasing gear and the output gear, wherein the first speed increasing gear, the second speed increasing gear, and the output gear are rotatably disposed on the first clamping plate.

The power generating module further includes a first stator core piece and a permanent magnet, the first stator core piece is disposed on the first clamping plate, and the first stator core piece is provided with a second through hole. The permanent magnet is rotatably disposed in the second through hole, the permanent magnet is disposed with a third through hole along a thickness direction thereof, and the third through hole is engaged with a gear shaft of the output gear.

The power generation module further includes a rotor sleeve, the rotor sleeve is rotatably disposed in the second through hole, the rotor sleeve is sleeved on the permanent magnet, and the rotor sleeve and the permanent The magnet has an interference fit.

The power generation module includes a first winding, a second winding, and a support plate, and the first winding and the second winding are connected by the support plate, and the left side of the first winding and the second winding The right side is fixedly coupled to the first stator core piece. The power generation module further includes a second clamping plate, the second clamping plate is fixedly disposed above the first winding and the second winding, and the first speed increasing gear, the second speed increasing gear, and The third speed increasing gear is rotatably disposed on the second plate.

The support plate is provided with a fourth through hole along a thickness direction thereof, and the support plate is fixedly connected to the second plate through the fourth through hole. The permanent magnet is annular, and the material of the annular permanent magnet is neodymium iron boron. The annular permanent magnet is magnetized in the radial direction, and the half is an N pole and a half is an S pole.

The first winding and the second winding include a second stator core piece, and the first stator core piece and the second stator core piece are made of different grades of iron-nickel alloy.

The self-generating device further includes a circuit board, the circuit board is fixedly disposed above the second clamping plate, and the circuit board is electrically connected to the first winding and the second winding.

The present invention also provides a smart wearable device comprising the self-generating device of any of the above structures.

The additional aspects and advantages of the invention will be set forth in part in the description which follows.

DRAWINGS

The above and/or additional aspects and advantages of the present invention will become apparent and readily understood from

1 is a perspective view of a self-generating device according to an embodiment of the present invention;

Figure 2 is a partial perspective view of a self-generating device according to an embodiment of the present invention;

Figure 3 is an exploded view of a self-generating device of one embodiment of the present invention;

4 is a partial structural schematic view of a self-generating device according to an embodiment of the present invention;

Figure 5 is a partial structural view of a self-generating device according to an embodiment of the present invention;

6 is a schematic structural view of a sun gear of a self-generating device according to an embodiment of the present invention;

7 is a schematic structural view of a fixed shaft of a self-generating device according to an embodiment of the present invention;

Fig. 8 is a schematic structural view of a substrate of a self-generating device according to an embodiment of the present invention.

Reference mark:

Substrate 100, hexagonal through hole 110, central gear 120, flat hole 130,

a first clamping plate 200, a boss 210, a first through hole 220, a first speed increasing gear 230, a second speed increasing gear 240, an output gear 250, a wheel 260, a gear shaft 270,

a first stator core piece 300, a second through hole 310, a permanent magnet 320, a third through hole 330, a rotor bushing 340,

a first winding 400, a second winding 410, a second stator core piece 420, a plastic blank 430, an enameled wire harness 440, a support plate 450, and a fourth through hole 460.

a second clamping plate 500, a first ball bearing 510, a screw 520, a solenoid 530, connecting holes 540, 300a, 420a,

Fixed shaft 600, mounting portion 610, second ball bearing 620, washer 630,

Circuit board 700.

detailed description

Embodiments of the invention are described in detail below, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the drawings are intended to be illustrative of the invention and are not to be construed as limiting.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " After, "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inside", "Outside", "Clockwise", "Counterclockwise", "Axial", The orientation or positional relationship of the "radial", "circumferential" and the like is based on the orientation or positional relationship shown in the drawings, and is merely for convenience of description of the present invention and simplified description, and does not indicate or imply the indicated device or component. It must be constructed and operated in a particular orientation, and is not to be construed as limiting the invention.

Moreover, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, features defining "first" or "second" may include at least one of the features, either explicitly or implicitly. In the description of the present invention, the meaning of "a plurality" is at least two, such as two, three, etc., unless specifically defined otherwise.

In the present invention, the terms "installation", "connected", "connected", "fixed" and the like shall be understood broadly, and may be either a fixed connection or a detachable connection, unless explicitly stated and defined otherwise. Or in one piece; it may be a mechanical connection, or it may be an electrical connection or a communication with each other; it may be directly connected or indirectly connected through an intermediate medium, and may be an internal connection of two elements or an interaction relationship between two elements. Unless otherwise expressly defined. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood on a case-by-case basis.

The present invention provides a self-generating device. 1 is a perspective view of a self-generating device according to an embodiment of the present invention; FIG. 2 is a partial perspective view of a self-generating device according to an embodiment of the present invention; FIG. 3 is an exploded view of a self-generating device according to an embodiment of the present invention; FIG. 5 is a partial structural view of a self-generating device according to an embodiment of the present invention; FIG. 6 is a schematic structural view of a center gear of a self-generating device according to an embodiment of the present invention; 7 is a schematic structural view of a fixed shaft of a self-generating device according to an embodiment of the present invention; and FIG. 8 is a schematic structural view of a substrate of a self-generating device according to an embodiment of the present invention.

Referring to FIGS. 1-8, the present invention provides a self-generating device including a substrate 100, a power generation module, and a sun gear 120.

Specifically, referring to FIG. 1 to FIG. 5, the substrate 100 is used as a carrier for carrying components such as a power generation module, a sun gear 120, and the like, and a hexagonal through hole 110 is disposed adjacent to an outer side of the substrate 100. The rotatably disposed on the substrate 100, and the power generating module includes a first speed increasing gear 230.

Specifically, referring to FIG. 1 to FIG. 8 , the self-generating device further includes a fixed shaft 600, a second ball bearing 620, and a gasket 630. The bottom end of the fixed shaft 600 is connected to the substrate 100. Preferably, the The bottom end of the fixed shaft 600 has a hexagonal shape. As shown in FIG. 8 , the substrate 100 is provided with a hexagonal through hole, and a bottom end of the hexagonal fixed shaft 600 is matched with the hexagonal through hole 110 . That is, the bottom end of the fixed shaft 600 is riveted to the substrate 100 for convenient connection. After the fixed shaft 600 is riveted to the substrate 100, the second ball bearing 620 is sleeved on the fixed shaft 600. The inner ring of the second ball bearing 620 is in an interference fit with the fixed shaft 600, that is, in a stationary state with respect to the fixed shaft 600, and the upper end of the fixed shaft 600 is provided with a mounting portion 610 similar to a flat key shape. The fixed shaft 600 is provided with an internally threaded hole, and a flat hole 130 is disposed in the middle of the sun gear 120. The flat hole 130 is similar to the shape of a flat key, and the sun gear 120 passes through the flat hole. 130 mates with the mounting portion 610 and a screw that mates with the internally threaded hole The central gear 120 is fixedly disposed on the fixed shaft 600, that is, fixedly disposed on the substrate 100, and the second ball bearing 620 is coupled between the central gear 120 and the substrate 100. The washer 630 is clamped, and the washer 630 is sleeved on the fixed shaft 600.

Specifically, referring to FIG. 3 to FIG. 5, the sun gear 120 is meshed with the first speed increasing gear 230, and the first speed increasing gear 230 is rotatable along the sun gear 120.

Specifically, referring to FIG. 3 to FIG. 5, the power generation module further includes a first clamping plate 200, wherein the first speed increasing gear 230 is rotatably disposed on the first clamping plate 200, and the first clamping plate 200 is Rotatingly disposed on the substrate 100, the first clamping plate 200 is provided with connecting holes on the left and right sides thereof, and the first clamping plate 200 is provided with a boss 210 at a position of its rotation axis, and the convexity shown in FIG. The stage 210 is adjacent to the outside of the first plate 200. A first through hole 220 is disposed in the boss 210, the first through hole 220 is sleeved on the outer ring of the second ball bearing 620, and the outer ring of the second ball bearing 620 is opposite to the first An through hole 220 is in an interference fit, that is, the first clamping plate 200 can be rotated around the inner ring of the second ball bearing 620, and the first clamping plate 200 is rotatably disposed through the first through hole 220. The fixed shaft 600 is on the fixed shaft 600.

Referring to FIG. 1 to FIG. 5, the power generation module further includes a second speed increasing gear 240 and an output gear 250. The first speed increasing gear, the second speed increasing gear, and the output gear 250 are all supported by a wheel. And a gear shaft, for example, as shown in FIG. 5, the second speed increasing gear 240 is composed of a wheel 260 and a gear shaft 270, and the second speed increasing gear 240 is respectively associated with the first speed increasing gear 230, The output gears 250 are engaged, and the first speed increasing gear 230, the second speed increasing gear 240, and the output gear 250 are rotatably disposed on the first clamping plate 200 when the first clamping plate 200 rotates The first speed increasing gear 230, the second speed increasing gear 240, and the output gear 250 move with the first clamping plate 200, and at this time, because the sun gear 120 is opposite to the substrate 100 is stationary, and the first speed increasing gear 230 meshes with the sun gear 120, so the first speed increasing gear 230 rotates around the sun gear 120 while generating self-rotation. The first speed increasing gear 230 meshes with the second speed increasing gear 240, the second speed increasing gear The wheel 240 meshes with the output gear 250, so that the second speed increasing gear 240 and the output gear 250 spontaneously rotate while moving along with the first clamping plate 200, and control the transmission of each stage gear. In comparison, the output gear 250 can be brought to a higher rotational speed.

Referring to FIG. 3 to FIG. 5, the power generating module further includes a first stator core piece 300, a rotor bushing 340, and a permanent magnet 320. The left and right sides of the first stator core piece 300 are provided with connecting holes 300a. The first stator core piece 300 is fixedly disposed on the first clamping plate 200 through the connecting hole 300a. The middle portion of the first stator core piece 300 is provided with a second through hole 310, and the rotor sleeve The 340 is rotatably disposed in the second through hole 310. The permanent magnet 320 is disposed along the thickness direction thereof with a third through hole 330. The permanent magnet 320 is interference fit with the rotor sleeve 340, that is, The permanent magnet 320 rotates synchronously with the rotor sleeve 340, and the rotor sleeve 340 is configured to prevent the permanent magnet 320 from being worn in contact with the second through hole 310 during high speed operation, and the The third through hole 330 has an interference fit with the bearing of the output gear 250, that is, the permanent magnet 320 rotates as the output gear 250 rotates, thereby generating a varying magnetic field.

Referring to FIG. 3 to FIG. 5, the power generation module further includes a first winding 400, a second winding 410, and a support plate 450. The support plate 450 is disposed with a fourth through hole 460 along a thickness direction thereof. The winding 400 and the second winding 410 are integrally connected by the support plate 450, and the left side of the first winding 400 and the right side of the second winding 410 are respectively provided with a connection hole 420a, the first The left side of the winding 400 and the right side of the second winding 410 are fixedly connected to the first stator core piece 300, and the first winding 400 and the second winding 410 are located in the fourth through hole 460. The first winding 400 and the second winding 410 include a second stator core piece 420, an insulating tape, a plastic baffle 430, and an enameled wire harness 440, and the insulating tape is evenly wound around the second stator iron. On the chip 420, the plastic baffle 430 is clamped on both ends of the second stator core piece 420, and the enameled wire harness 440 is wound on the insulating tape on the second stator core piece 420. When the magnetic flux passing through the cross section of the second stator core piece 420 changes, the enameled wire harness 440 generates an induced electromotive force, and the power generation module generates power for two windings, that is, includes two sets of windings, of course, according to actual conditions. The situation is set to three sets of windings and four sets of windings, and the arrangement thereof is the same as that of the double windings. Here, the multi-winding power generation is used to improve the power generation efficiency and reduce the thickness of the self-power generating device.

Referring to FIG. 3 to FIG. 5, the power generation module further includes a second clamping plate 500. The left and right ends of the second clamping plate 500 are provided with connecting holes 540. The second clamping plate 500 is fixedly disposed through the connecting hole 540. The first winding 400, the second winding 410, and the first speed increasing gear 230, the second speed increasing gear 240, and the output gear 250 are rotatably disposed on the second plate 500. That is, in the present embodiment, the second clamping plate 500 is fixedly coupled to both ends of the first winding 400 and the second winding 410. Further, in other embodiments of the present invention, as shown in FIG. The intermediate portion of the second clamping plate 500 may also be fixedly coupled to the first winding 400 and the second winding 410, that is, the support plate 450 for connecting the first winding 400 and the second winding 410 passes through the fourth through hole 460 and the second. The intermediate portions of the splint 500 are fixedly coupled together. Further, in this embodiment, the connection strength and stability of the first winding 400 and the second winding 410 can be further improved.

Referring to FIGS. 2-5, the power generation module further includes a first ball bearing 510, which is preferably a ruby bearing, and the ruby bearing has the advantage of low friction to make the self-power generation The energy collection efficiency of the device is improved. The number of the first ball bearings 510 is plural, two ends of the gear shaft 270 of the first speed increasing gear 230, and two gear shafts 270 of the second speed increasing gear 240. The first ball bearing 510 is sleeved on the end and the upper end of the gear shaft 270 of the output gear 250, the first ball bearing 510 and the first speed increasing gear 230 and the second speed increasing gear 240. And the gear shaft of the output gear 250 is interference fit, the first clamping plate 200 and the second clamping plate 500 are respectively provided with through holes that cooperate with the first ball bearing 510, and the first ball bearing The 510 is interference-fitted with the through hole, and the first ball bearing 510 is used to reduce resistance during gear transmission and improve conversion efficiency.

Referring to FIG. 3 to FIG. 5, the permanent magnet 320 is annular, and since the neodymium iron boron material has high remanence after magnetization, the material of the permanent magnet 320 is preferably a neodymium iron boron material. In the magnetic field, the solution is magnetized by a 900V magnetizing device, and the permanent magnet 320 is magnetized in the radial direction, and the half is an N pole and a half is an S pole.

Specifically, the first stator core piece 300 and the second stator iron piece 420 are made of different grades of iron-nickel alloy, which have a high magnetic field permeability and a relatively high resistivity, and the eddy current loss is small. The magnetic field loss in the first stator core piece 300 and the second stator core piece 420 is reduced.

Referring to FIG. 1 , FIG. 3 to FIG. 5 , the self-generating device further includes a circuit board 700 , the circuit board 700 is fixedly disposed above the second clamping plate 500 , and the circuit board 700 and the first winding 400. The second winding 410 is electrically connected.

Specifically, the first clamping plate 200, the first stator core piece 300, the second stator core piece 420, the second clamping plate 500, and the circuit board 700 pass through the position of the position pin tube and the connecting hole 540. In conjunction with the fixed connection, the bit tube is divided into a screw 520 and a screw 530 portion, the screw 530 is provided with an internally threaded hole, and the screw 520 cooperates with the internally threaded hole to fix the components. The upper end of the screw 520 is completely located in the connecting hole 540 of the circuit board 700. The lower end of the screw 530 is completely located in the connecting hole on the first clamping plate 200, thereby reducing the self. The thickness of the power generating device.

In a conventional pendulum type power generation mechanism, a power generation module (for example, a coil, a permanent magnet, and a soft magnetic body) is fixedly disposed with respect to a substrate, and a pendulum is rotatable relative to the substrate, and the transmission member is driven by rotation of the pendulum In the present invention, the power generating module itself is rotatable relative to the substrate. Compared with the conventional pendulum power generating mechanism, the self-generating device uses a power generating module instead of the pendulum. The hammer rotates to generate electricity, thereby reducing the thickness of the mechanism and the number of parts, simplifying the structure of the mechanical part, and changing the single coil winding mode to the double coil winding mode, which can effectively reduce the overall thickness of the coil winding and increase the power generation. In addition, since the coil thickness of the coil winding is reduced, the electromagnetic conversion efficiency of the self-generating device is improved.

The present invention also provides a smart wearable device comprising the self-generating device of any of the above structures, wherein the self-generating device uses a power generation module instead of a pendulum to generate electricity, thereby reducing the thickness of the mechanism and The number of parts simplifies the structure of the mechanical part. At the same time, changing the single-coil winding method to the double-coil winding method can effectively reduce the overall thickness of the coil winding and increase the power generation. In addition, since the coil thickness of the coil winding is reduced, the electromagnetic conversion efficiency of the self-generating device is improved. It can be understood that the present invention is not particularly limited to the types of smart wearable devices, and may be various commonly used smart wearable devices, such as smart bracelets, smart watches, and the like.

Self-generation process:

The power generating module swings or rotates around the fixed shaft 600 under the action of its own gravity or external motion, and the first speed increasing gear 230, the second speed increasing gear 240, and the output gear 250 follow The first clamping plate 200 moves, and at this time, since the sun gear 120 is stationary with respect to the substrate 100, and the first speed increasing gear 230 meshes with the sun gear 120, the first speed increasing The gear 230 itself rotates while rotating around the sun gear 120, while the first speed increasing gear 230 meshes with the second speed increasing gear 240, the second speed increasing gear 240 and the The output gears 250 are engaged, so that the second step-up gears 240 and the output gears 250 spontaneously rotate while moving along with the first platen 200, and the output gears 250 are coupled to the permanent magnets 320 to drive The permanent magnet 320 rotates, and by controlling the transmission ratio of the gears of each stage, the output gear 250 can be brought to a higher rotational speed, that is, the permanent magnet 320 reaches a higher rotational speed, so that the permanent magnet 320 generates The magnetic field is also high Rotating at a high speed to generate a high induced electromotive force on the first winding 400 and the second winding 410, generating an alternating current in the enameled wire harness 440, and drawing the current of the enameled wire harness 440 to the circuit After being rectified and filtered, the board 700 finally stores the power in a super capacitor or a rechargeable lithium battery through a power management scheme to supply other low-power electronic components.

In the description of the present specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" and the like means a specific feature described in connection with the embodiment or example. A structure, material or feature is included in at least one embodiment or example of the invention. In the present specification, the schematic representation of the above terms does not necessarily mean the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples.

Although the embodiments of the present invention have been shown and described, it is understood that the foregoing embodiments are illustrative and not restrictive Variations, modifications, alterations and variations of the above-described embodiments are possible within the scope of the invention.

Claims (14)

A self-generating device, comprising: Substrate a power generation module, the power generation module is rotatably disposed on the substrate, and the power generation module includes a first speed increasing gear; a sun gear fixedly disposed on the base plate, the sun gear meshing with the first speed increasing gear, and the first speed increasing gear rotatable along the sun gear. The self-generating device according to claim 1, further comprising a fixed shaft, a bottom end of the fixed shaft being coupled to the substrate, the center gear being fixedly disposed on the substrate by the fixed shaft. The self-generating device according to claim 2, wherein the power generating module further comprises a first clamping plate, the first speed increasing gear is rotatably disposed on the first clamping plate, the first clamping plate Rotatablely disposed on the substrate, the first clamping plate is provided with a boss at a position of its rotation axis, a first through hole is disposed in the boss, and the first plate passes through the first through hole Rotatable sleeved on the fixed shaft. The self-generating device according to claim 3, wherein a second ball bearing is disposed in the first through hole, the second ball bearing is sleeved on the fixed shaft, and the second ball is An inner ring of the bearing has an interference fit with the fixed shaft, and an outer ring of the second ball bearing has an interference fit with the first through hole. The self-generating device according to claim 3, wherein the power generation module further comprises a second speed increasing gear and an output gear, the first speed increasing gear, the second speed increasing gear, and the output The gears each include a wheel and a gear shaft, and the second speed increasing gear meshes with the first speed increasing gear and the output gear, respectively, the first speed increasing gear, the second speed increasing gear, and the The output gear is rotatably disposed on the first plate. The self-generating device according to claim 5, wherein the power generating module further comprises a first stator core piece and a permanent magnet, and the first stator core piece is disposed on the first plate. a second through hole is disposed on the first stator core piece, the permanent magnet is rotatably disposed in the second through hole, the permanent magnet is disposed with a third through hole along a thickness direction thereof, and the first The three-way hole is engaged with the gear shaft of the output gear. The self-generating device of claim 6, wherein the power generating module further comprises a rotor bushing, the rotor bushing is rotatably disposed in the second through hole, and the rotor bushing is sleeved in the On the permanent magnet, and the rotor sleeve is in interference fit with the permanent magnet. The self-generating device according to claim 6, wherein the power generating module further comprises a first winding, a second winding, and a support plate, wherein the first winding and the second winding are connected by the support plate The left side of the first winding and the right side of the second winding are fixedly connected to the first stator core piece. The self-generating device according to claim 8, wherein the power generating module further comprises a second clamping plate, wherein the second clamping plate is fixedly disposed above the first winding and the second winding, and The first speed increasing gear, the second speed increasing gear, and the third speed increasing gear are rotatably disposed on the second plate. The self-generating device according to claim 9, wherein the support plate is provided with a fourth through hole along a thickness direction thereof, and the support plate is fixedly connected to the second plate through the fourth through hole Together. The self-generating device according to claim 6, wherein the permanent magnet is annular, and the material of the annular permanent magnet is neodymium iron boron, and the annular permanent magnet is magnetized in the radial direction and half is N pole, half is S pole. The self-generating device according to claim 8, wherein the first winding and the second winding comprise a second stator core piece, the first stator core piece and the second stator iron piece Different grades of iron-nickel alloy are used. The self-generating device according to claim 12, further comprising a circuit board, the circuit board being fixedly disposed above the second clamping plate, and the circuit board and the first winding, the second The windings are electrically connected. A smart wearable device characterized by comprising a self-generating device of any of the structures of claims 1-13.

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