Power generation device and smart wearable device

Abstract

The utility model belongs to intelligent wearing technical field especially relates to a power generation device and intelligent wearing equipment. The power generation device includes shell, magnet assembly and coil assembly all in the shell, coil assembly is worn in magnet assembly, when the power generation device is vibrated, coil assembly and magnet assembly make reciprocating motion to make at least part coil assembly can produce induced current. The utility model provides a kind of power generation device and intelligent wearing equipment, when the power generation device is vibrated, coil assembly does cutting magnetic induction line motion in the magnetic field of magnet assembly, makes coil assembly produce induced voltage and corresponding induced current. Its simple structure, small size, low cost, enable magnetic power generation mechanical structure integration in small intelligent wearing equipment, realizes the miniaturization, integration, lightening of intelligent wearing equipment, can satisfy user daily use intelligent wearing equipment for low-power chip power supply and emergency scene under the demand of continuous power supply.

Description

Technical Field

[0001] This utility model relates to the field of smart wearable technology, and in particular to a power generation device and a smart wearable device. Background Technology

[0002] With the increasing popularity of smart wearable devices (such as smartwatches, health monitoring bracelets, and motion sensors), their functions are becoming more complex, significantly increasing the demand for continuous power supply. However, traditional lithium batteries have problems such as limited capacity, frequent charging affecting user experience, and environmental pollution from discarded batteries.

[0003] While there are existing energy harvesting solutions such as solar and thermal energy, these technologies are limited by environmental conditions (such as light intensity and temperature difference) and cannot be stably adapted to the daily movement scenarios of the human body.

[0004] Currently, technologies based on human motion for generating electricity are mostly concentrated in large fitness equipment (such as treadmills and exercise bikes), which generate electrical energy through the reciprocating motion of magnets and coils driven by mechanical structures. However, such solutions are bulky and have low energy conversion efficiency, making them difficult to integrate into wearable devices. Utility Model Content

[0005] The purpose of this invention is to solve the technical problem that existing mechanical structures for generating electricity through magnetism are difficult to apply to smart wearable devices.

[0006] To solve the above-mentioned technical problems, this utility model provides a power generation device, which adopts the following technical solution: The power generation device includes a housing, a magnet assembly and a coil assembly both disposed within the housing, with the coil assembly passing through the magnet assembly; When the power generation device is subjected to vibration, the coil assembly and the magnet assembly reciprocate relative to each other, so that at least a portion of the coil assembly can generate an induced current.

[0007] Optionally, the magnet assembly includes a first mounting member and a magnet body disposed on the first mounting member, and the coil assembly includes a second mounting member and a coil body disposed on the second mounting member; The second mounting member is inserted through the first mounting member, the magnet body and the coil body overlap in at least a partial area, and the first mounting member and the second mounting member can reciprocate relative to each other.

[0008] Optionally, the first mounting component is fan-shaped, with its fan head oscillatingly connected to the outer casing via a pivot, and its fan tail having an opening slot for the second mounting component to pass through, with the magnet body embedded in both walls of the opening slot.

[0009] Optionally, the inner wall of the outer casing is provided with an arc-shaped protrusion at a position opposite to the fan tail, and the fan tail swings along the arc-shaped protrusion.

[0010] Optionally, the coil body is embedded in the second mounting member, and the terminals of the coil body extend from the side of the second mounting member away from the first mounting member.

[0011] Optionally, the second mounting member has a clearance groove on the side facing the bottom of the opening groove.

[0012] Optionally, each side of the slot is provided with a plurality of magnet bodies, and / or the second mounting member is provided with a plurality of coil bodies.

[0013] Optionally, the second mounting component is fixed to the housing by a positioning post.

[0014] Optionally, the outer shell includes an upper shell and a lower shell, wherein the upper shell is detachably disposed over the lower shell.

[0015] To address the aforementioned technical problems, this utility model also provides a smart wearable device, which adopts the following technical solution: The smart wearable device includes a device body and the aforementioned power generation device, which is located within the device body.

[0016] Compared with the prior art, the power generation device and smart wearable device provided by this utility model have the following advantages: This power generation device includes a housing, a magnet assembly and a coil assembly both housed within the housing. The magnet assembly generates a magnetic field, and a portion of the coil assembly contains a closed circuit. The coil assembly passes through the magnet assembly so that when the power generation device is subjected to vibration (such as vibrations generated by walking, running, or other activities when wearing a smart wearable device), the coil assembly reciprocates relative to the magnet assembly. In other words, the coil assembly moves within the magnetic field of the magnet assembly, cutting magnetic field lines, thus inducing a voltage in the coil assembly. Furthermore, the portion of the coil assembly containing the closed circuit generates an induced current. This power generation device achieves magnetoelectric power generation using only the magnet assembly and coil assembly. Its simple structure, small size, and low cost allow for the integration of the magnetoelectric mechanical structure into a small smart wearable device, achieving miniaturization, integration, and portability. It can meet the needs of users for low-power chip charging and continuous power supply in emergency scenarios during daily use of smart wearable devices. Attached Figure Description

[0017] To more clearly illustrate the solutions in this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein: Figure 1 This is an exploded schematic diagram of the power generation device in one embodiment of the present invention; Figure 2 yes Figure 1 An exploded schematic diagram of the magnet assembly and coil assembly of the power generation device; Figure 3 This is a waveform diagram showing the relationship between the induced voltage and time of the power generation device in one embodiment of this utility model.

[0018] The labels in the attached diagram are as follows: 100. Power generation equipment; 10. Outer shell; 11. Arc-shaped boss; 12. Positioning post; 13. Upper shell; 14. Lower shell; 20. Magnet assembly; 21. First mounting component; 211. Fan head; 212. Fan tail; 213. Opening slot; 22. Magnet body; 30. Coil assembly; 31. Second mounting component; 311. Clearance slot; 32. Coil body. Detailed Implementation

[0019] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the invention. For example, terms such as “length,” “width,” “upper,” “lower,” “left,” “right,” “front,” “rear,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” and “outer” indicate orientations or positions based on the orientations or positions shown in the accompanying drawings and are merely for ease of description and should not be construed as limiting the invention.

[0020] The terms "comprising" and "having," and any variations thereof, in the specification, claims, and accompanying drawings of this utility model are intended to cover non-exclusive inclusion; the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this utility model are used to distinguish different objects, not to describe a specific order. "A plurality of" means two or more, unless otherwise explicitly specified.

[0021] In the description, claims, and accompanying drawings of this utility model, when an element is referred to as "fixed to," "mounted to," "set on," or "connected to" another element, it can be directly or indirectly located on that other element. For example, when an element is referred to as "connected to" another element, it can be directly or indirectly connected to that other element.

[0022] Furthermore, the reference to "embodiment" herein means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of the present invention. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0023] This utility model embodiment provides a power generation device 100, such as Figure 1 As shown, the power generation device 100 includes a housing 10, a magnet assembly 20 and a coil assembly 30, both of which are disposed within the housing 10. The magnet assembly 20 may have a magnetic field, and a portion of the coil assembly 30 may have a closed circuit. The coil assembly 30 may pass through the magnet assembly 20, and the coil assembly 30 and the magnet assembly 20 may reciprocate relative to each other. That is, the coil assembly 30 moves in the magnetic field, cutting magnetic field lines, thereby generating an induced current in the closed circuit portion of the coil assembly 30.

[0024] When a user wears the smart wearable device while walking, running, or engaging in other activities, causing the power generation device 100 inside the smart wearable device to vibrate, the coil assembly 30 and the magnet assembly 20 will reciprocate relative to each other. That is, the coil assembly 30 moves in the magnetic field formed by the magnet assembly 20, cutting magnetic field lines, which causes the coil assembly 30 to generate an induced voltage. The part of the coil assembly 30 with a closed circuit generates an induced current, so as to continuously power the smart wearable device.

[0025] In summary, compared with existing technologies, the power generation device 100 has at least the following beneficial effects: When the power generation device 100 is subjected to vibration (such as vibrations generated by walking, running, or other activities when wearing a smart wearable device), the coil assembly 30 can reciprocate relative to the magnet assembly 20. That is, the coil assembly 30 moves in the magnetic field of the magnet assembly 20, cutting magnetic field lines, thereby generating an induced voltage in the coil assembly 30, and generating an induced current in the closed circuit portion of the coil assembly 30. In other words, the power generation device 100 achieves a magnetoelectric power supply method using only the magnet assembly 20 and the coil assembly 30. Its structure is simple, small in size, and low in cost, enabling the integration of the magnetoelectric mechanical structure into a small smart wearable device. This achieves miniaturization, integration, and portability of smart wearable devices, and can meet the needs of users for low-power chip charging and continuous power supply in emergency scenarios during daily use of smart wearable devices.

[0026] To enable those skilled in the art to better understand the present invention, the following will be described in conjunction with the appendix. Figures 1 to 3 The technical solutions in the embodiments of this utility model will be clearly and completely described.

[0027] In some embodiments, such as Figure 2 As shown, the magnet assembly 20 includes a first mounting member 21 and a magnet body 22 disposed on the first mounting member 21, the magnet body 22 being capable of generating a magnetic field. The coil assembly 30 includes a second mounting member 31 and a coil body 32 disposed on the second mounting member 31, the coil body 32 being capable of a closed circuit. The second mounting member 31 can pass through the first mounting member 21, the magnet body 22 and the coil body 32 can overlap in at least a partial area, and the first mounting member 21 and the second mounting member 31 can reciprocate relative to each other.

[0028] Understandably, combined with the appendix Figure 1 Since the magnet body 22 and the coil body 32 can overlap in at least a portion, when the first mounting member 21 and the second mounting member 31 reciprocate relative to each other, they drive the magnet body 22 and the coil body 32 to reciprocate relative to each other, causing the overlapping area of ​​the magnet body 22 and the coil body 32 to cut magnetic field lines, thereby generating an induced voltage at the coil assembly 30 and generating an induced current in the coil body 32 accordingly. That is, magnetoelectricity is generated through mechanical structure.

[0029] In some embodiments, such as Figure 2 As shown, the first mounting member 21 may be fan-shaped, and its fan head 211 may be oscillatingly connected to the outer casing 10 via a pivot (not shown in the figure), so that the first mounting member 21 is suspended inside the outer casing 10. Its fan tail 212 may be provided with an opening slot 213 for the second mounting member 31 to pass through. Magnet bodies 22 may be embedded in both walls of the opening slot 213 of the first mounting member 21, and a magnetic field is formed between the two magnet bodies 22, that is, a magnetic field is formed between the two side walls of the opening slot 213.

[0030] Understandably, the fan head 211 of the first mounting member 21 rotates around the pivot, and its fan tail 212 swings accordingly, so that the first mounting member 21 swings and is fitted onto the second mounting member 31 through its opening slot 213, that is, the two reciprocate relative to each other, so as to drive the coil body 32 on the second mounting member 31 to cut magnetic field lines in the aforementioned magnetic field, so that an induced voltage is generated at the coil assembly 30, and the coil body 32 generates an induced current accordingly.

[0031] In some embodiments, such as Figure 1 As shown, since the fan tail 212 of the first mounting member 21 has a certain curvature, an arc-shaped boss 11 can be provided on the inner wall of the outer casing 10 at a position opposite to the fan tail 212 of the first mounting member 21. The fan tail 212 can swing along the arc-shaped boss 11. The curvature of the arc-shaped boss 11 can be the same as the curvature of the fan tail 212, and there can be a slight gap between the arc-shaped boss 11 and the fan tail 212. Specifically, the arc-shaped boss 11 should not interfere with the fan tail 212 when the first mounting member 21 swings, so as to improve the compactness of the internal structure of the power generation device 100.

[0032] In some embodiments, the side of the arc-shaped boss 11 facing the fan tail 212 may be provided with elastic elements such as springs and foam (not shown in the figure) to increase the swing frequency of the first mounting member 21.

[0033] In some embodiments, such as Figure 2 As shown, the coil body 32 can be embedded in the second mounting member 31, specifically located in the middle of the second mounting member 31, so that the coil body 32 and the magnet body 22 overlap in at least a partial area. Furthermore, the terminals of the coil body 32 (not shown in the figure) can extend from the side of the second mounting member 31 away from the first mounting member 21, allowing the coil body 32 to be connected to other circuits.

[0034] In some embodiments, such as Figure 2 As shown, several magnet bodies 22 can be provided in the groove wall on each side of the opening groove 213. The magnet bodies 22 on each side of the opening groove 213 can be arranged in a normal manner, or the magnet bodies 22 on both sides of the opening groove 213 can be set as Haier shell array magnets.

[0035] And / or, the second mounting component 31 may be provided with a number of coil bodies 32. Each coil body 32 may be a single multi-turn coil or an irregularly shaped coil. The structure may be optimized and copper wire with a lower diameter may be used to wind as many turns as possible, but the internal resistance of the coil must be taken into account.

[0036] Optionally, the number of coil bodies 32 provided in the second mounting member 31 can be the same as the number of magnet bodies 22 provided in each slot wall of the opening slot 213; of course, different numbers can also be provided. The specific number can be determined according to actual needs.

[0037] Specifically in this embodiment, such as Figure 3 As shown, the number of turns of the coil body 32 is set to 1250 turns (T), the resistance of the coil body 32 is 220Ω, and the oscillation frequency of the first mounting part 21 is 4.17 Hz. Based on the fluctuation amplitude in the attached figure, it can be seen that the maximum amplitude of the induced voltage of the coil body 32 is 5.3V.

[0038] Understandably, the faster the relative reciprocating speed of the first mounting member 21 and the second mounting member 31 (i.e., the faster the oscillation speed of the first mounting member 21), the more turns the coil body 32 has, and the greater the induced voltage generated at the second mounting member 31. Based on the calculation formula of induced voltage and induced current, the greater the induced current generated at the coil body 32. That is, by changing the magnetic field layout and the number of coil turns within a limited space, the rate of change of magnetic flux can be maximized, thereby improving the power generation efficiency per unit volume and effectively enhancing the energy conversion efficiency.

[0039] In some embodiments, such as Figure 2 As shown, the second mounting member 31 may be provided with a clearance groove 311 on the side of the groove bottom facing the opening groove 213, so that the second mounting member 31 will not be interfered with by the first mounting member 21 when the first mounting member 21 swings relative to the second mounting member 31.

[0040] In some embodiments, such as Figure 1 As shown, the second mounting member 31 can be suspended inside the housing 10 via the positioning posts 12. Specifically, two positioning posts 12 can be provided, and the two positioning posts 12 can be respectively inserted at both ends of the second mounting member 31 so that the second mounting member 31 can be stably fixed inside the housing 10.

[0041] In some embodiments, such as Figure 1 As shown, the outer casing 10 includes an upper casing 13 and a lower casing 14. The upper casing 13 is detachably mounted on the lower casing 14. Specifically, the upper casing 13 and the lower casing 14 can be fixedly connected by the aforementioned positioning post 12. In short, the positioning post 12 can serve as both a connecting component between the upper casing 13 and the lower casing 14 and a fixing component for the second mounting member 31.

[0042] Optionally, the two positioning posts 12 can be fixed to the upper shell 13 in a diagonal arrangement, with the positioning posts 12 inserted into the lower shell 14 to achieve a fixed connection between the upper shell 13 and the lower shell 14; or, the two positioning posts 12 can be fixed to the lower shell 14 in a diagonal arrangement, with the positioning posts 12 inserted into the upper shell 13 to achieve a fixed connection between the upper shell 13 and the lower shell 14; or, in conjunction with the attached...Figure 1 The two positioning posts 12 can be arranged diagonally and fixed to the upper shell 13 and the lower shell 14 respectively, so that the positioning post 12 located in the upper shell 13 is inserted into the lower shell 14 and the positioning post 12 located in the lower shell 14 is inserted into the upper shell 13, so as to achieve a fixed connection between the upper shell 13 and the lower shell 14.

[0043] Based on the aforementioned power generation device 100, this embodiment of the present invention also provides a smart wearable device, which may be a smartwatch, a health monitoring bracelet, a motion sensor, etc. The smart wearable device includes a device body and the aforementioned power generation device 100. The power generation device 100 may be disposed within the device body, which may include an energy harvesting chip and energy storage components (such as batteries, battery packs, etc.). The energy harvesting chip can collect the electrical energy generated by the power generation device 100 through magnetoelectricity generation to supply the energy storage components for storage and use.

[0044] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of the claims of the present invention.

Claims

1. A power generation device, characterized in that, It includes a housing, a magnet assembly and a coil assembly both disposed within the housing, wherein the coil assembly passes through the magnet assembly; When the power generation device is subjected to vibration, the coil assembly and the magnet assembly reciprocate relative to each other, so that at least a portion of the coil assembly can generate an induced current.

2. The power generation device according to claim 1, characterized in that, The magnet assembly includes a first mounting member and a magnet body disposed on the first mounting member, and the coil assembly includes a second mounting member and a coil body disposed on the second mounting member; The second mounting member is inserted through the first mounting member, the magnet body and the coil body overlap in at least a partial area, and the first mounting member and the second mounting member can reciprocate relative to each other.

3. The power generation device according to claim 2, characterized in that, The first mounting component is fan-shaped, with its fan head swinging to the outer casing via a pivot, and its fan tail having an opening slot for the second mounting component to pass through. The magnet body is embedded in both walls of the opening slot.

4. The power generation device according to claim 3, characterized in that, The inner wall of the outer casing is provided with an arc-shaped protrusion at a position opposite to the fan tail, and the fan tail swings along the arc-shaped protrusion.

5. The power generation device according to claim 3, characterized in that, The coil body is embedded in the second mounting member, and the terminal of the coil body extends from the side of the second mounting member away from the first mounting member.

6. The power generation device according to claim 3, characterized in that, The second mounting component has a clearance groove on the side facing the bottom of the opening groove.

7. The power generation device according to claim 5, characterized in that, Each side of the slot is provided with a plurality of magnet bodies, and / or the second mounting member is provided with a plurality of coil bodies.

8. The power generation device according to claim 2, characterized in that, The second mounting component is fixed to the housing by a positioning post.

9. The power generation device according to claim 1, characterized in that, The outer shell includes an upper shell and a lower shell, with the upper shell detachably covering the lower shell.

10. A smart wearable device, characterized in that, It includes a device body and a power generation device according to any one of claims 1 to 9, wherein the power generation device is disposed within the device body.

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