A self-generating device
By using a self-generating device to generate electricity through piezoelectric generators that vibrate, the problem of power outages caused by complex terrain and sudden disasters has been solved, achieving a stable power supply in remote areas and reducing costs and dependence on traditional power generation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 魏名君
- Filing Date
- 2025-07-10
- Publication Date
- 2026-06-23
AI Technical Summary
In areas with complex or remote terrain, existing power generation methods are susceptible to the complexities of the terrain and sudden disasters, leading to power outages. Furthermore, battery energy storage is prone to aging and cannot provide a continuous and stable power supply.
The device employs a self-generating power unit, which generates electricity when the piezoelectric generator vibrates externally. The vibration of the elastic part and the counterweight drives the piezoelectric generator to produce electrical energy, which directly supplies power to electrical devices, thus avoiding problems such as cable damage and battery aging.
It enables continuous and stable power supply in harsh environments, reduces costs, and decreases reliance on traditional power generation and energy storage, making it suitable for power supply in remote areas such as geological exploration.
Smart Images

Figure CN224401413U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of piezoelectric power generation technology, specifically, it relates to a self-generating device. Background Technology
[0002] The conventional power supply model involves centralized power generation, power transmission, power storage, and then appliance use. However, in remote areas with complex terrain, such as during geological exploration, a centralized power generation and cable-based power supply model is prone to cable breakage due to the complex terrain, leading to power outages. Furthermore, sudden geological disasters can easily cause damage to centralized power generation equipment and transmission cables, resulting in power interruptions and an inability to provide a continuous and stable power supply. Using batteries, etc., can address this issue.
[0003] Energy storage structures are susceptible to aging.
[0004] In remote areas and islands with poor power grid coverage or low electricity demand, there are many natural sources of vibration, such as wave impact and wind vibration. During geological exploration and other construction processes, vibrations are generated by deep-earth mining machinery, personnel movement, and material transportation. Existing power generation methods cannot utilize these vibrations for power generation and mostly rely on traditional energy sources.
[0005] Therefore, developing a self-generating device that can continuously generate electricity when subjected to external vibrations, directly powering other electronic devices, with low cost and unaffected by the external environment, is an urgent technical problem to be solved. Utility Model Content
[0006] The purpose of this invention is to provide a self-generating device that generates electricity continuously when subjected to external vibrations, directly powering other electronic devices, with low cost and unaffected by the external environment.
[0007] To achieve the above-mentioned objectives, the present invention employs the following technical solution:
[0008] This utility model proposes a self-generating device, comprising:
[0009] An elastic portion having a first fixed end and a first free end formed thereon;
[0010] Multiple piezoelectric generators are provided, each piezoelectric generator having a second fixed end and a second free end. The piezoelectric generators extend along the elastic portion, and the multiple second fixed ends are connected to the first fixed end. The multiple second free ends are movable relative to the first free end.
[0011] The counterweight is connected to the first free end.
[0012] In some embodiments of this application, a plurality of the piezoelectric generators are symmetrically distributed on both sides of the elastic portion;
[0013] Multiple second free ends are located on both sides of the first free end.
[0014] In some embodiments of this application, a fixing part is also included, wherein the second fixing end is connected to the fixing part, and the first fixing end is connected to the fixing part.
[0015] In some embodiments of this application, a housing is also included, wherein a receiving cavity is formed inside the housing, the fixing part is fixedly disposed on the receiving cavity, and the elastic part, the plurality of piezoelectric generating plates and the counterweight part are accommodated in the receiving cavity.
[0016] In some embodiments of this application, a circuit communication module is also included;
[0017] The piezoelectric generators are electrically connected to the circuit communication module.
[0018] In some embodiments of this application, the counterweight extends along the first free end.
[0019] In some embodiments of this application, the material of the piezoelectric generator is quartz crystal or piezoelectric ceramic.
[0020] In some embodiments of this application, the circuit communication module includes a rectifier bridge, capacitors, and electrical components;
[0021] The multiple piezoelectric generators supply power to the electrical devices after rectification by the rectifier bridge and the capacitor.
[0022] In some embodiments of this application, the piezoelectric generator extends along the elastic portion, and the first free end extends out to the outside of the second free end and connects to the counterweight portion.
[0023] In some embodiments of this application, the housing includes a first sub-housing and a second sub-housing, the first sub-housing and the second sub-housing being detachably connected to form the housing.
[0024] Compared with the prior art, the advantages and positive effects of this utility model are:
[0025] By connecting the second fixed ends of multiple piezoelectric generators to the first fixed end of an elastic part, under vibration, the first free end of the elastic part drives the second free ends of the multiple piezoelectric generators to swing with the vibration, thereby achieving the purpose of power generation. This directly supplies power to the electrical components housed in its casing, replacing power supply via cables or batteries. It solves problems such as the difficulty of cable laying in complex terrain, the susceptibility of cables to damage, and the aging of battery structures. It enables stable power supply to electrical components in remote and harsh conditions such as geological exploration.
[0026] Other features and advantages of this utility model will become clearer after reading the detailed embodiments of this utility model in conjunction with the accompanying drawings. Attached Figure Description
[0027] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in 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.
[0028] Figure 1 This is a schematic diagram of the overall structure of one embodiment of the self-generating device proposed in this utility model;
[0029] Figure 2 This is a schematic diagram of one embodiment of the self-generating device proposed in this utility model;
[0030] Figure 3 This is a second schematic diagram of the structure of one embodiment of the self-generating device proposed in this utility model;
[0031] Figure 4 This is a side view of one embodiment of the self-generating device proposed in this utility model;
[0032] Figure 5 This is a cross-sectional view of one embodiment of the self-generating device proposed in this utility model;
[0033] Figure 6 This is a circuit diagram of a self-generating device proposed in this utility model;
[0034] In the picture,
[0035] 100. Elastic part;
[0036] 110. First fixed end;
[0037] 120. First free end;
[0038] 200. Piezoelectric generator;
[0039] 210. Second fixed end;
[0040] 220. Second free end;
[0041] 300. Counterweight section;
[0042] 400. Fixing part;
[0043] 500. Casing;
[0044] 510. Receiving cavity;
[0045] 520. First subshell;
[0046] 530. Second subshell;
[0047] 600. Circuit communication module;
[0048] 610. Rectifier bridge;
[0049] 620. Capacitor;
[0050] 630. Electrical components;
[0051] 631. Communication antenna;
[0052] 632. PCB board. Detailed Implementation
[0053] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.
[0054] In the description of this application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.
[0055] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.
[0056] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections, direct connections, or indirect connections through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.
[0057] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0058] The following disclosure provides many different embodiments or examples for implementing various structures of the present invention. To simplify the disclosure, specific examples of components and arrangements are described below. Of course, these are merely examples and are not intended to limit the scope of the invention. Furthermore, reference numerals and / or reference letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed.
[0059] In some embodiments of this application, a self-generating device is disclosed, which has its own power generation function to power the electrical components installed therein, without the need for an additional power supply.
[0060] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 As shown, the self-generating device includes an elastic part 100, a plurality of piezoelectric generating plates 200 and a counterweight part 300.
[0061] The elastic portion 100 is elastic. A first fixed end 110 and a first free end 120 are formed thereon on the elastic portion 100. The first fixed end 110 is connected to the first free end 120.
[0062] A second fixed end 210 and a second free end 220 are formed on the piezoelectric generator 200. The second fixed end is connected to the second free end 220.
[0063] The counterweight 300 is connected to the first free end 120.
[0064] The piezoelectric generator 200 extends along the elastic portion 100.
[0065] Multiple piezoelectric generating plates 200 are respectively arranged along both sides of the elastic part 100.
[0066] Specifically, both the elastic part 100 and the piezoelectric generator 200 are rectangular sheet structures.
[0067] Multiple second fixed ends 210 are connected to the first fixed end 110.
[0068] Specifically, multiple second fixed ends 210 are respectively connected to both sides of the first fixed end 110.
[0069] Multiple second free ends 220 are located on both sides of the first free end 120.
[0070] Multiple second free ends 220 are movable relative to the first free end 120 so that the second free ends 220 move away from or closer to the first free end 120.
[0071] To achieve a fixed connection between the first fixed end 110 and the second fixed end 210, the self-generating device also includes a fixing part 400. The second fixed end 210, the first fixed end 110, and the fixing part 400 are connected.
[0072] The piezoelectric generator 200 extends along the elastic portion 100, and the first free end 120 extends out to the second free end 220 and connects to the counterweight portion 300.
[0073] In order to accommodate the elastic part 100, the piezoelectric generator 200, the counterweight part 300 and the fixing part 400, the self-generating device also includes a housing 500, in which a receiving cavity 510 is formed, and the elastic part 100, the piezoelectric generator 200, the counterweight part 300 and the fixing part 400 are accommodated in the receiving cavity 510.
[0074] The fixing part 400 is fixedly installed inside the receiving cavity 510.
[0075] The first fixed end 110 of the elastic part 100 and the second fixed end 210 of the piezoelectric generator 200 are fixedly mounted on the fixed part 400. When the self-generating device is driven to vibrate by an external force, the second free end 220 of the piezoelectric generator 200 vibrates relative to the second fixed end 210.
[0076] Piezoelectric generators 200 are typically made of materials exhibiting the piezoelectric effect, such as quartz crystals or piezoelectric ceramics. These materials have a unique crystal structure with special symmetry; when no external force is applied, the centers of positive and negative charges coincide, resulting in overall electrical neutrality. When mechanical pressure is applied to the piezoelectric material, the crystal deforms.
[0077] The piezoelectric generator 200 deforms, causing a relative displacement between the centers of positive and negative charges inside. This generates equal amounts of opposite charges on certain surfaces of the piezoelectric generator 200, forming an electric field and producing a potential difference. The amount of charge generated is proportional to the applied pressure. This allows for the generation of electricity through the oscillation of the piezoelectric generator 200.
[0078] When the elastic portion 100 provided in the multiple piezoelectric generators 200 is subjected to external force vibration, the first free end 120 of the elastic portion 100 generates a vibration displacement relative to the first fixed end 110. The first free end 120 drives the second free end 220 to move, increasing the external force value received by the second free end 220, thereby increasing the vibration displacement of the second free end 220 and increasing the potential difference generated by the piezoelectric generators 200.
[0079] Multiple piezoelectric generators 200 are respectively disposed on both sides of the elastic portion 100, so that when the first free end 120 of the elastic portion 100 vibrates, it can apply a force to the multiple piezoelectric generators 200 located on both sides, thereby increasing the external force on the multiple piezoelectric generators 200 and increasing the potential difference generated by the multiple piezoelectric generators 200.
[0080] As the vibration of the elastic part 100 gradually approaches stillness, it returns to its original state.
[0081] Specifically, the elastic part 100 is made of 316 stainless steel.
[0082] In some embodiments of this application, the housing 500 may be a one-piece molded structure.
[0083] In other embodiments of this application, the housing 500 includes a first sub-housing 520 and a second sub-housing 530. The first sub-housing 520 and the second sub-housing 530 are detachably connected. The first sub-housing 520 and the second sub-housing 530 are assembled together to form the housing 500. A receiving cavity 510 is formed within the housing 500.
[0084] In some embodiments of this application, such as Figure 6 As shown, the self-generating device also includes a circuit communication module 600. Multiple piezoelectric generators 200 are electrically connected to the circuit communication module 600.
[0085] Specifically, the piezoelectric generator 200 can be connected to the circuit communication module 600 via a cable.
[0086] The circuit communication module 600 includes a rectifier bridge 610, a capacitor 620, and other electrical components 630. The rectifier bridge 610 and the capacitor 620 rectify the electrical energy generated by the multiple piezoelectric generators 200 for use by the other electrical components 630.
[0087] The electrical component 630 may include other electrical components such as the communication antenna 631 and the PCB board 632.
[0088] In order to enable the self-generating device of this application to be used in emergency situations under harsh environments, the housing 500 may be made of high temperature and high pressure resistant materials.
[0089] The electrical device 630 of this application may also include exploration sensors, eliminating the need for power transmission cables and allowing the equipment housing to be sealed to withstand high-temperature and high-pressure environments. End-user appliances are directly powered, preventing cable breakage and equipment failure due to complex geological structures. In the event of sudden geological disasters, this invention provides researchers with a continuous and stable power supply, ensuring personnel safety.
[0090] By employing the oscillating deformation trajectory of the elastic part 100 and utilizing the inertia of the counterweight part 300, the piezoelectric generator 200 oscillates back and forth within the sealed housing 500. When subjected to external vibration, it generates electricity continuously, directly powering electronic sensors and other equipment within the housing 500. This represents a novel approach to using piezoelectric generators.
[0091] During the scientific expedition, the self-generating device of this application can utilize the vibrations generated by deep-earth mining, personnel movement, and material transportation to generate electricity from piezoelectric generators containing piezoelectric materials, achieving environmentally friendly power generation. The self-generating power allows the detection equipment to be completely enclosed (without power cables), improving its pressure resistance, increasing its service life, and assisting in deeper scientific expeditions.
[0092] In remote areas and islands where power grid coverage is inconvenient or electricity demand is low, local natural vibration sources, such as wave impact and wind vibration, can be used to generate electricity through piezoelectric minerals to meet basic electricity needs, reducing reliance on traditional fossil fuel power generation and long-distance power transmission.
[0093] This application's self-generating device transforms the conventional centralized power generation-transmission-storage-electricity usage model into a direct power generation-electricity usage model, eliminating intermediate steps and significantly improving efficiency. This self-generating device is suitable for remote areas such as geological exploration. It eliminates the need for battery or other energy storage structures, is unaffected by aging, has an extremely simple structure, is stable and maintenance-free, making it suitable for harsh environments such as geological exploration. This self-generating device is low-cost and low-polluting: using natural piezoelectric materials, it has a stable structure, eliminates production waste, and has an extremely long lifespan, making it suitable for long-term research projects such as geological exploration.
[0094] In the description of the above embodiments, specific features, structures, materials, or characteristics may be combined in any suitable manner in one or more embodiments or examples.
[0095] Whenever possible, the various aspects and features described and shown in the specification can be applied individually, and these individual aspects can serve as the subject of a divisional application.
[0096] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.
Claims
1. A self-generating power device, characterized by, include: An elastic portion having a first fixed end and a first free end formed thereon; Multiple piezoelectric generators are provided, each piezoelectric generator having a second fixed end and a second free end. The piezoelectric generators extend along the elastic portion, and the multiple second fixed ends are connected to the first fixed end. The multiple second free ends are movable relative to the first free end. The counterweight is connected to the first free end.
2. The self-generating device according to claim 1, characterized in that, Multiple piezoelectric generators are symmetrically distributed on both sides of the elastic portion; Multiple second free ends are located on both sides of the first free end.
3. The self-generating power device of claim 1, wherein, It also includes a fixing part, the second fixing end is connected to the fixing part, and the first fixing end is connected to the fixing part.
4. The self-generating power device of claim 3, wherein, It also includes a housing, in which a receiving cavity is formed, the fixing part is fixedly disposed on the receiving cavity, and the elastic part, the plurality of piezoelectric generating plates and the counterweight part are housed in the receiving cavity.
5. The self-generating device according to claim 4, characterized in that, It also includes a circuit communication module; The piezoelectric generators are electrically connected to the circuit communication module.
6. The self-generating device according to claim 1, characterized in that, The counterweight extends along the first free end.
7. The self-generating device according to claim 1, characterized in that, The material of the piezoelectric generator is quartz crystal or piezoelectric ceramic.
8. The self-generating device according to claim 5, characterized in that, The circuit communication module includes a rectifier bridge, capacitors, and electrical components; The multiple piezoelectric generators supply power to the electrical devices after rectification by the rectifier bridge and the capacitor.
9. The self-generating device according to claim 1, characterized in that, The piezoelectric generator extends along the elastic portion, and the first free end extends out to the outside of the second free end and connects to the counterweight portion.
10. The self-generating device according to claim 4, characterized in that, The housing includes a first sub-housing and a second sub-housing, which are detachably connected to form the housing.