An energy collection device adapted to low-frequency vibration

Abstract

The utility model provides an energy collection device adapted to low-frequency vibrations, and belongs to the field of energy collection technology. The utility model solves the problem that the existing vibration energy collector has low energy conversion efficiency and is large in size and is not conducive to integrated installation. The friction nano power generation component includes an upper conductive plate, a lower conductive plate, a first friction nano power generation material layer, a second friction nano power generation material layer and a second spring. The upper conductive plate and the lower conductive plate are fixedly connected to the upper fixed plate and the lower fixed plate respectively and are electrically connected to the rechargeable battery respectively. The two friction nano power generation material layers are arranged vertically opposite to each other, and the first friction nano power generation material layer is connected to the upper conductive plate through the second spring, and the second friction nano power generation material layer is connected to the lower conductive plate. By providing the first spring and the second spring, the low-frequency vibration is converted into high-frequency vibration, which significantly improves the energy conversion efficiency of the friction nano power generation component.

Description

Technical Field

[0001] The utility model relates to an energy collection device adapted to low-frequency vibration, belonging to the technical field of energy collection. Background Art

[0002] A vibration energy harvester is a device that can convert mechanical vibration energy into electrical energy. There are three main types: electromagnetic vibration energy harvester, piezoelectric vibration energy harvester and triboelectric vibration energy harvester. The triboelectric vibration energy harvester is based on the principle of friction electrification, generating electric charge through the contact and separation of two different materials. When the vibration causes relative movement between the materials, the charge flows between the electrodes to form an electric current. However, existing triboelectric vibration energy harvesters have the following limitations: most vibration energy harvesters can only work efficiently in the high-frequency range, which limits their application scenarios; they often cannot fully utilize the input vibration energy, resulting in low energy conversion efficiency; they are large in size and difficult to integrate with existing small electronic devices. Utility Model Content

[0003] The utility model aims to solve the problem of low energy conversion efficiency of existing friction type vibration energy collectors, and further provides an energy collection device adapted to low frequency vibrations.

[0004] The technical solution adopted by the utility model to solve the above technical problems is:

[0005] An energy collection device adapted to low-frequency vibrations comprises a rechargeable battery, an upper fixed plate, a lower fixed plate, and a friction nano power generation component and a plurality of first springs arranged between the upper fixed plate and the lower fixed plate, wherein the friction nano power generation component comprises an upper conductive plate, a lower conductive plate, a first friction nano power generation material layer, a second friction nano power generation material layer and a second spring, the upper conductive plate and the lower conductive plate are fixedly connected to the upper fixed plate and the lower fixed plate respectively and are electrically connected to the rechargeable battery respectively, the two friction nano power generation material layers are arranged opposite each other up and down, and the first friction nano power generation material layer is connected to the upper conductive plate through the second spring, and the second friction nano power generation material layer is connected to the lower conductive plate.

[0006] Furthermore, an upper rubber pad is connected between the upper conductive plate and the upper fixing plate.

[0007] Furthermore, a lower rubber pad is connected between the lower conductive plate and the lower fixing plate.

[0008] Furthermore, there are multiple friction nano power generation components.

[0009] Furthermore, the first friction nanometer power generation material layer is polytetrafluoroethylene, and the second friction nanometer power generation material layer is polyimide.

[0010] Furthermore, the upper fixing plate and the lower fixing plate are arranged in parallel up and down.

[0011] Furthermore, a plurality of first springs are evenly distributed between the upper fixing plate and the lower fixing plate in the circumferential direction.

[0012] Furthermore, the rechargeable battery is arranged between the plurality of friction nano power generation components.

[0013] Furthermore, a plurality of first guide columns are fixedly provided on the lower surface of the upper fixed plate, and a plurality of second guide columns are fixedly provided on the upper surface of the lower fixed plate and are arranged vertically opposite to the plurality of first guide columns, and the upper and lower ends of the plurality of first springs are respectively correspondingly mounted on the first guide columns and the second guide columns arranged vertically opposite to each other.

[0014] Furthermore, a third guide post is fixedly disposed on the lower surface of the upper conductive plate, a fourth guide post is fixedly disposed on the upper surface of the first friction nano-electricity generation material layer, and the upper and lower ends of the second spring are respectively correspondingly mounted on the third guide post and the fourth guide post.

[0015] Compared with the prior art, the utility model has the following effects:

[0016] The energy collection device adapted to low-frequency vibration of the utility model converts low-frequency vibration into high-frequency vibration by arranging a first spring and a second spring, thereby significantly improving the energy conversion efficiency of the friction nano power generation component.

[0017] The energy collection device adapted to low-frequency vibration of the utility model has a modular design of friction nano power generation components, and a larger number of friction nano power generation components can be arranged as needed, thereby further improving the energy conversion efficiency.

[0018] The energy collection device adapted to low-frequency vibration of the utility model can be applied to vibration environments of various frequencies and is not limited to low-frequency vibration.

[0019] The energy collection device adapted to low-frequency vibration of the utility model has a simple structure, is easy to manufacture and maintain, has a compact structure design and adopts a modular design, which is more conducive to integration and installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the principle of the energy collection device adapted to low-frequency vibration of the utility model;

[0021] Figure 2 This is a schematic diagram of the three-dimensional structure of the energy collection device adapted to low-frequency vibration of the utility model (the cables used for electrical connection between the upper conductive plate and the rechargeable battery and between the lower conductive plate and the rechargeable battery are not shown).

[0022] In the figure:

[0023] 1. Rechargeable battery; 2. Upper fixed plate; 3. First spring; 4. Lower fixed plate; 5. Upper rubber pad; 6. Upper conductive plate; 7. Second spring; 8. First friction nano-electricity generation material layer; 9. Second friction nano-electricity generation material layer; 10. Lower conductive plate; 11. Lower rubber pad; 12. First guide column; 13. Second guide column; 14. Third guide column; 15. Fourth guide column. DETAILED DESCRIPTION

[0024] Specific implementation method 1: Combination Figure 1~Figure 2 This embodiment is explained, and the technical scheme in the embodiment of the utility model is clearly and completely described. Obviously, the described embodiment is only a part of the embodiment of the utility model, rather than all the embodiments. Based on the embodiment in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0025] It should be noted that the descriptions of the present invention regarding directions such as "front", "back", "left", "right", "inside", "outside", "left side", "right side", "upper", "lower", "top", "bottom", etc. are all defined based on the relationship between the orientations or positions shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the structure described must be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention. In the description of the present invention, the meaning of "multiple" is more than two, unless otherwise clearly and specifically defined.

[0026] In the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] An energy collection device adapted to low-frequency vibrations comprises a rechargeable battery 1, an upper fixed plate 2, a lower fixed plate 4, and a friction nano-power generation component and a plurality of first springs 3 arranged between the upper fixed plate 2 and the lower fixed plate 4, wherein the friction nano-power generation component comprises an upper conductive plate 6, a lower conductive plate 10, a first friction nano-power generation material layer 8, a second friction nano-power generation material layer 9 and a second spring 7, the upper conductive plate 6 and the lower conductive plate 10 are fixedly connected to the upper fixed plate 2 and the lower fixed plate 4 respectively and are electrically connected to the rechargeable battery 1, the two friction nano-power generation material layers are arranged opposite each other up and down, and the first friction nano-power generation material layer 8 is connected to the upper conductive plate 6 through the second spring 7, and the second friction nano-power generation material layer 9 is connected to the lower conductive plate 10.

[0028] The upper end of the first spring 3 is fixedly connected to the upper fixing plate 2 , and the lower end of the first spring 3 is fixedly connected to the lower fixing plate 4 , so that the first spring 3 absorbs external low-frequency vibration.

[0029] The first spring 3 is a large spring, and the second spring 7 is a small spring. The upper end of the second spring 7 is fixedly connected to the upper conductive plate 6, and the lower end of the second spring 7 is fixedly connected to the first friction nano-electricity material layer 8, and the second spring 7 is used to realize the conversion from low-frequency to high-frequency vibration.

[0030] When the first tribo-nano power generation material layer 8 and the second tribo-nano power generation material layer 9 are in contact, electric charges are generated.

[0031] The upper conductive plate 6 and the lower conductive plate 10 are used for conducting electricity;

[0032] The rechargeable battery 1 is used to store the electric energy generated by the friction nano-power generation assembly;

[0033] The upper fixing plate 2 and the lower fixing plate 4 are used to support and fix the entire device.

[0034] The energy collection device adapted to low-frequency vibration of the utility model converts low-frequency vibration into high-frequency vibration by setting the first spring 3 and the second spring 7, thereby significantly improving the energy conversion efficiency of the friction nano power generation component.

[0035] The energy collection device adapted to low-frequency vibration of the utility model has a modular design of friction nano power generation components, and a larger number of friction nano power generation components can be arranged as needed, thereby further improving the energy conversion efficiency.

[0036] The energy collection device adapted to low-frequency vibration of the utility model can be applied to vibration environments of various frequencies and is not limited to low-frequency vibration.

[0037] The energy collection device adapted to low-frequency vibration of the utility model has a simple structure, is easy to manufacture and maintain, has a compact structure design and adopts a modular design, which is more conducive to integration and installation.

[0038] Working principle:

[0039] When the external low-frequency vibration acts on the first spring 3, the large first spring 3 starts to vibrate and transmits the vibration to the triboelectric nano-power generation component. During this process, the first triboelectric nano-power generation material layer 8 and the second triboelectric nano-power generation material layer 9 generate electric charge due to contact. At the same time, the small second spring 7 is excited by the vibration of the triboelectric nano-power generation material contact and performs multiple high-frequency vibrations. This high-frequency vibration further promotes the contact of the two triboelectric nano-power generation material layers to generate more electric charge, thereby achieving an effective conversion from low-frequency vibration to high-frequency vibration and improving energy collection efficiency.

[0040] An upper rubber pad 5 is connected between the upper conductive plate 6 and the upper fixing plate 2 .

[0041] A lower rubber pad 11 is connected between the lower conductive plate 10 and the lower fixing plate 4 .

[0042] There are multiple friction nano power generation components. In this design, the upper conductive plate 6 and the lower conductive plate 10 in each friction nano power generation component are electrically connected to the rechargeable battery 1 respectively.

[0043] The first friction nanometer power generation material layer 8 is polytetrafluoroethylene, and the second friction nanometer power generation material layer 9 is polyimide.

[0044] The upper fixing plate 2 and the lower fixing plate 4 are arranged vertically and parallelly.

[0045] The plurality of first springs 3 are evenly distributed circumferentially between the upper fixing plate 2 and the lower fixing plate 4. With such a design, the relative movement between the upper fixing plate 2 and the lower fixing plate 4 is made smoother by evenly distributing the plurality of first springs 3 circumferentially between the upper fixing plate 2 and the lower fixing plate 4.

[0046] The rechargeable battery 1 is arranged between the plurality of friction nano-power generation components.

[0047] A plurality of first guide posts 12 are fixedly disposed on the lower surface of the upper fixing plate 2, a plurality of second guide posts 13 are fixedly disposed on the upper surface of the lower fixing plate 4 and are arranged vertically opposite to the plurality of first guide posts 12, and the upper and lower ends of the plurality of first springs 3 are respectively and correspondingly sleeved on the first guide posts 12 and the second guide posts 13 arranged vertically opposite to each other. With such a design, the first guide posts 12 and the second guide posts 13 provide guidance and fixation for the first springs 3.

[0048] A third guide post 14 is fixedly disposed on the lower surface of the upper conductive plate 6, a fourth guide post 15 is fixedly disposed on the upper surface of the first friction nano-electricity generation material layer 8, and the upper and lower ends of the second spring 7 are respectively sleeved on the third guide post 14 and the fourth guide post 15. In this design, the third guide post 14 and the fourth guide post 15 provide guidance and fixation for the second spring 7.

[0049] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An energy collection device adapted to low-frequency vibration, characterized in that: The invention comprises a rechargeable battery (1), an upper fixed plate (2), a lower fixed plate (4), a friction nano-power generation component arranged between the upper fixed plate (2) and the lower fixed plate (4), and a plurality of first springs (3), wherein the friction nano-power generation component comprises an upper conductive plate (6), a lower conductive plate (10), a first friction nano-power generation material layer (8), a second friction nano-power generation material layer (9), and a second spring (7); the upper conductive plate (6) and the lower conductive plate (10) are fixedly connected to the upper fixed plate (2) and the lower fixed plate (4) respectively and are electrically connected to the rechargeable battery (1); the two friction nano-power generation material layers are arranged opposite each other in the upper and lower directions; the first friction nano-power generation material layer (8) is connected to the upper conductive plate (6) via the second spring (7), and the second friction nano-power generation material layer (9) is connected to the lower conductive plate (10).

2. The energy collection device adapted to low-frequency vibration according to claim 1, characterized in that: An upper rubber pad (5) is connected between the upper conductive plate (6) and the upper fixing plate (2).

3. The energy collection device adapted to low-frequency vibration according to claim 1, characterized in that: A lower rubber pad (11) is connected between the lower conductive plate (10) and the lower fixing plate (4).

4. The energy collection device adapted to low-frequency vibration according to claim 1, characterized in that: The number of friction nano power generation components is multiple.

5. The energy collection device adapted to low-frequency vibration according to claim 1, characterized in that: The first friction nanometer power generation material layer (8) is polytetrafluoroethylene, and the second friction nanometer power generation material layer (9) is polyimide.

6. The energy collection device adapted to low-frequency vibration according to claim 1, characterized in that: The upper fixing plate (2) and the lower fixing plate (4) are arranged vertically and parallelly.

7. The energy collection device adapted to low-frequency vibration according to claim 1, characterized in that: A plurality of first springs (3) are evenly distributed in the circumferential direction between the upper fixing plate (2) and the lower fixing plate (4).

8. The energy collection device adapted to low-frequency vibration according to claim 4, characterized in that: The rechargeable battery (1) is arranged between the plurality of friction nano-power generation components.

9. The energy collection device adapted to low-frequency vibration according to claim 1, characterized in that: A plurality of first guide posts (12) are fixedly disposed on the lower surface of the upper fixed plate (2), a plurality of second guide posts (13) are fixedly disposed on the upper surface of the lower fixed plate (4) and are arranged vertically opposite to the plurality of first guide posts (12), and upper and lower ends of the plurality of first springs (3) are respectively and correspondingly sleeved on the first guide posts (12) and the second guide posts (13) arranged vertically opposite to each other.

10. The energy collection device adapted to low-frequency vibration according to claim 1, characterized in that: A third guide post (14) is fixedly provided on the lower surface of the upper conductive plate (6), a fourth guide post (15) is fixedly provided on the upper surface of the first friction nanometer power generation material layer (8), and the upper and lower ends of the second spring (7) are respectively and correspondingly sleeved on the third guide post (14) and the fourth guide post (15).

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