Energy collector and energy capture system
By using a composite structure design of a support layer and a flexible deformation layer, the shortcomings of existing energy harvesting devices in terms of energy sensing sensitivity and miniaturization are solved, achieving efficient energy harvesting and miniaturization, which is suitable for wearable devices and micro sensors.
Patent Information
- Application Number
- CN202422761465.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-13
- Publication Date
- 2025-11-07
- Estimated Expiration
- 2034-11-13
AI Technical Summary
Existing energy harvesting devices are insufficient in terms of energy sensing sensitivity and miniaturization, making it difficult to work effectively in low-intensity energy environments. Furthermore, their large size and weight limit their application in wearable devices and micro-sensors.
A composite structure of a support layer and a flexible deformation layer is adopted. The directional stress transfer is achieved through the design of stress concentration holes. Combined with the induction element and the wire, a closed loop is formed to improve the energy harvesting efficiency. The weight is reduced by optimizing the structure through weight reduction holes.
It achieves high-sensitivity energy harvesting in low-intensity energy environments, miniaturizes the structure, reduces production costs, expands the application range, and is suitable for wearable devices and micro sensors.
Smart Images
Figure CN223527987U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to energy conversion technical field, concretely points to an energy collector and energy capture system. BACKGROUND
[0002] In today's society, with the growth of energy demand and the improvement of environmental protection consciousness, the research and application of high-efficiency energy collection devices are particularly important. These devices aim to capture and convert energy from the surrounding environment to provide sustainable and environmentally friendly energy supply for various electronic devices. However, existing high-efficiency energy collection devices face many challenges in practical application, especially in energy collection efficiency, device miniaturization, and energy perception sensitivity.
[0003] The energy collection devices on the market currently generally face the problem of low energy perception sensitivity. Due to the limitations of existing devices in material selection, structure design, and energy conversion mechanism, in weak light, micro-vibration, and other low-intensity energy environments, the power generation capacity of the device is greatly reduced, resulting in limited performance in practical application. This low sensitivity makes it difficult for the device to function in environments where energy resources are scarce, and it cannot achieve stable and reliable energy supply.
[0004] On the other hand, the volume and weight of existing energy collection devices are relatively large, which brings great difficulty to the miniaturization and integration of the device. In fields such as wearable devices, micro-sensors, etc., there is a high demand for the miniaturization of the device. However, due to the limitations of volume and weight, traditional energy collection devices are difficult to meet the needs of these fields, thereby restricting their widespread application in high-tech fields.
[0005] Although there have been some research and improvement attempts to solve these problems, a complete and effective solution has not yet been formed. Therefore, developing an energy collection device that can improve energy collection efficiency, achieve miniaturization, and have high energy perception sensitivity has become a technical bottleneck and urgent need in the field. SUMMARY
[0006] Therefore, the technical problem to be solved by the utility model lies in overcoming the limitations of the application range and sensitivity of the energy capture device in the prior art, and providing an energy collector and energy capture system.
[0007] To solve the above technical problems, the utility model provides an energy collector, it includes: support layer, flexible deformation layer, flexible deformation layer is connected to support layer, is equipped with stress concentration hole on it, stress concentration hole includes at least two guide edges, two guide edges are respectively recessed to the center from the edge of stress concentration hole in horizontal plane, to form at least one slit corner, at least one inductor, inductor is connected to flexible deformation layer, with support layer is arranged respectively on opposite sides of flexible deformation layer, at least one inductor is correspondingly arranged in at least one slit corner, at least one wire, one end of wire is connected and is inserted between flexible deformation layer and inductor, and the other end is connected energy collection circuit.
[0008] In an embodiment of the utility model, it includes two flexible deformation layers, two flexible deformation layers are connected respectively on the thickness direction opposite sides of support layer, and the stress concentration holes on two flexible deformation layers are arranged in the thickness direction of support layer.
[0009] In an embodiment of the utility model, the flexible deformation layer includes a plurality of guide edges, the plurality of guide edges are sequentially connected to form a plurality of slit corners, and a plurality of inductors are correspondingly connected to the plurality of slit corners.
[0010] In an embodiment of the utility model, the support layer is provided with a first weight-reducing hole, and the first weight-reducing hole is arranged in the thickness direction of the support layer and coincides with the stress concentration hole.
[0011] In an embodiment of the utility model, the support layer further includes a plurality of second weight-reducing holes, and the plurality of second weight-reducing holes are symmetrically arranged around the first weight-reducing hole.
[0012] In an embodiment of the utility model, it further includes a film packaging, the support layer, the flexible deformation layer and the inductor are arranged in the film packaging, and the wire is led out from the inside of the film packaging.
[0013] In an embodiment of the utility model, the inductor is connected with two wires, and the two wires are connected with the energy collection circuit to form a closed loop; the energy collection circuit includes a resistance-voltage conversion module.
[0014] In an embodiment of the utility model, the support layer is a metal sheet, and the flexible deformation layer substrate is one of polydimethylsiloxane, silica gel and epoxy resin.
[0015] In an embodiment of the utility model, it further includes at least one adhesive layer, and the adhesive layer is arranged between the support layer and the flexible deformation layer.
[0016] The utility model also provides an energy capturing system, it includes at least one above-mentioned energy collector.
[0017] The above technical scheme of the utility model has the following advantages compared with the prior art:
[0018] The energy collector and the energy capturing system provide an installation connection platform for other structures through the supporting layer, stress change is generated through the flexible deformation layer, and the special structure design of the stress concentration hole thereon achieves the purpose of directional transmission of stress concentration, so that greater deformation effect can be generated under the same pressure, and greater output energy is obtained. Compared with the conventional energy collection device at the present stage, the structure design of the present application is ingenious, the quality and volume are greatly reduced, the production cost is low, the controllability is strong, in addition, it also has the advantages of wide use range, low cost and the like, and provides a new idea for the structural research and development of the energy collector. BRIEF DESCRIPTION OF DRAWINGS
[0019] In order to make the content of the utility model more easily understood clearly, the utility model is further described in detail below according to the specific embodiments of the utility model and in conjunction with the drawings.
[0020] Figure 1 It is the three-dimensional structure schematic diagram of the energy collector in the preferred embodiment of the utility model;
[0021] Figure 2 It is Figure 1 The internal structure schematic diagram of the film packaging in the energy collector shown in the figure;
[0022] Figure 3 It is Figure 1 The three-dimensional structure schematic diagram of the supporting layer and flexible deformation in the energy collector shown in the figure;
[0023] Figure 4 It is Figure 3 The layer structure schematic diagram of the supporting layer and flexible deformation;
[0024] Figure 5 It is Figure 1 The three-dimensional structure schematic diagram of the energy collector.
[0025] The description of the drawing of the specification is as follows: 100, supporting layer;110, first weight-reducing hole;120, second weight-reducing hole;200, flexible deformation layer;210, stress concentration hole;211, slit corner;212, guide edge;300, inductive piece;400, wire;500, film packaging. DETAILED DESCRIPTION
[0026] The utility model will be further described below in combination with the drawings and specific embodiments, so that the person skilled in the art can better understand the utility model and can be implemented, but the embodiment is not as the limitation of the utility model. Embodiment one
[0027] Referring to Figure 1 As shown in the figure, the embodiment provides an energy collector, which comprises a support layer 100, a flexible deformation layer 200 connected to the support layer 100, wherein the flexible deformation layer 200 is provided with a stress concentration hole 210, the stress concentration hole 210 comprises at least two guide edges 212, and the two guide edges 212 are respectively recessed from the edge of the stress concentration hole 210 to the center in the horizontal plane to form at least one slit corner 211; at least one inductive element 300 is connected to the flexible deformation layer 200, and the inductive element 300 is arranged on the opposite side of the flexible deformation layer 200 from the support layer 100, and at least one inductive element 300 is arranged at at least one slit corner 211; at least one wire 400 is connected between the flexible deformation layer 200 and the inductive element 300, and the other end of the wire 400 is connected to an energy collection circuit.
[0028] The energy collector of the embodiment provides a mounting connection platform for other structures through the support layer 100, generates stress changes through the flexible deformation layer 200, and realizes the purpose of directional transmission of stress concentration through the special structural design of the stress concentration hole 210, so that it can produce greater deformation effect under the same pressure, and further obtain greater output energy. Compared with the conventional energy collection device at the present stage, the structure design of the utility model is ingenious, the quality and volume are greatly reduced, the production cost is low, the controllability is strong, in addition, it also has the advantages of wide use range, low cost and the like, and provides a new idea for the structural research and development of the energy collector.
[0029] Referring to Figures 2 to 4As shown, the support layer 100 and the flexible deformation layer 200 in the embodiment are both configured in a rectangular sheet structure, which specifically includes two flexible deformation layers 200 connected to opposite sides of the support layer 100 in the thickness direction, and the stress concentration holes 210 on the two flexible deformation layers 200 are arranged in the thickness direction of the support layer 100. It should be noted that the conventional energy collection device is generally designed in a single hard material or a traditional elastic solid structure. The design pain point of the former is that the hard material has strong resistance to deformation, and only small deformation can occur under the same external stress. Although the elastic solid flexible material has good elasticity and generates large strain, it takes a long time to produce deformation, and a certain deformation loss occurs after multiple bending deformations, thereby affecting the efficiency and accuracy of energy collection. In the embodiment, the "soft-rigid-soft" composite structure can generate large deformation while maintaining low fatigue wear of the material.
[0030] In the embodiment, the flexible deformation layer 200 includes a plurality of guide edges 212, and the plurality of guide edges 212 are sequentially connected to form a plurality of slit corners 211, and a plurality of sensing elements 300 are correspondingly connected to the plurality of slit corners 211. Specifically, the embodiment includes four guide edges 212, which are sequentially connected to form a closed "four-star" structure. In different embodiments, the shape of the stress concentration hole 210 can be configured as other regular or irregular structures, which are not limited in the utility model.
[0031] In the flexible deformation layer 200, the slit corner 211 converges the external load force signal at its contraction based on its special structure, thereby realizing effective stress concentration effect, and further realizing greater strain of the energy collection material and improving the collection efficiency of the energy collection device. Further, the guide edges 212 in the embodiment are all configured as smooth arc edges, and the design purpose is to ensure the directional stress transmission effect regardless of the load in any direction, thereby achieving the purpose of omnidirectional collection. In addition, based on the arc structure of the lead wire 400 edge, greater stress signal collection and storage can be realized under smaller size, solving the pain point problem that the self-powered device has less energy collection, low collection efficiency, and cannot meet the intelligent application scenarios of energy application demand.
[0032] In the embodiment, the flexible deformation layer 200 substrate is preferably polydimethylsiloxane (PDMS), and in other embodiments, it can also be configured as one of high resilience materials such as silicone and epoxy resin.
[0033] Referring to Figure 5As shown, the support layer 100 in the embodiment is preferably a stainless steel sheet, which in different embodiments can also be configured as an aluminum sheet, a titanium alloy sheet, or other metal or non-metal sheet. A first weight-reducing hole 110 is provided thereon, which is arranged in the thickness direction of the support layer 100 and coincides with the stress concentration hole 210. Based on this, the support layer 100 can achieve sufficient weight reduction without affecting the action of the flexible deformation layer 200. Further, the support layer 100 further includes a plurality of second weight-reducing holes 120, which are symmetrically arranged around the first weight-reducing hole 110, thereby achieving optimal weight reduction effect of the support layer 100 and maintaining the stability of the operation process of the energy harvester. Further, the support layer 100 and the flexible deformation layer 200 of the embodiment are connected through an adhesive layer (not shown in the figure) arranged between the support layer 100 and the flexible deformation layer 200.
[0034] In the embodiment, the inductor 300 is preferably a piezoresistive element, which is connected to two conductive wires 400, and the two conductive wires 400 are respectively connected to the energy harvesting circuit to form a closed loop; the energy harvesting circuit includes a resistance-voltage conversion module, thereby achieving efficient collection and storage of electrical signals.
[0035] The embodiment further includes a film packaging 500, and the support layer 100, the flexible deformation layer 200, and the inductor 300 are arranged in the film packaging 500, and the conductive wires 400 are led out from the inside of the film packaging 500, which can ensure the stability of the internal working environment and avoid contact interference caused by water vapor and dust.
[0036] The steps for preparing the energy harvester in the embodiment are as follows:
[0037] Step S100, two flexible support layers 200 are respectively adhered to the two sides of the support layer 100 in the thickness direction;
[0038] Step S200, stress concentration holes 210 are prepared on the flexible deformation layer, and first weight-reducing holes 110 are prepared on the support layer 100. Specifically, in the actual operation process, stamping or integral cutting can be used for synchronous processing of the support layer 100 and the flexible deformation layer 200 to improve the processing efficiency.
[0039] Step S300, the inductor 300 is attached at the slit corner 211, and the conductive wire 400 is connected accordingly;
[0040] Step S400, after the free end of the conductive wire 400 is connected to the energy harvesting circuit, film packaging 500 processing is performed, and the preparation process is completed. Embodiment two
[0041] The present embodiments provide an energy harvesting system including at least one embodiment of the energy harvester.
[0042] In summary, the energy harvester and the energy harvesting system provide an installation connection platform for other structures through the support layer 100, and stress changes are generated through the flexible deformation layer 200, and the special structure design of the stress concentration hole 210 on the flexible deformation layer 200 achieves the purpose of directional transmission of stress concentration, so that greater deformation effect can be generated under the same pressure effect, and greater output energy is obtained. Compared with the conventional energy harvesting device at the present stage, the structure design of the present application is ingenious, the quality and volume are greatly reduced, the production cost is low, the controllability is strong, in addition, the present application also has the advantages of wide use range and low cost, and the like, and provides a new idea for the structural research and development of the energy harvester.
[0043] Obviously, the above embodiments are only examples for clearly illustrating, and are not limited to the embodiments. For ordinary skilled in the art, other different forms of changes or variations can be made on the basis of the above description. Here, all the embodiments need not and cannot be exhausted. The obvious changes or variations derived therefrom are still within the protection scope of the present application.
Claims
1. An energy harvester characterized by: The energy collector comprises: a support layer; a flexible deformation layer connected to the support layer, and provided with stress concentration holes, the stress concentration holes comprising at least two guide edges, the two guide edges being recessed from the edges of the stress concentration holes to the center in a horizontal plane to form at least one slitted corner; at least one sensing element connected to the flexible deformation layer, and arranged on opposite sides of the flexible deformation layer with the support layer, at least one of the sensing elements being arranged at at least one of the slitted corners; at least one wire, one end of the wire being connected and plugged between the flexible deformation layer and the sensing element, and the other end being connected to an energy collection circuit.
2. The energy harvester of claim 1, wherein: The energy collector comprises two flexible deformation layers, the two flexible deformation layers being connected to opposite sides of the support layer in the thickness direction, and the stress concentration holes on the two flexible deformation layers being arranged in the thickness direction of the support layer.
3. The energy harvester of claim 1, wherein: The flexible deformation layer comprises a plurality of guide edges, the plurality of guide edges being sequentially connected to form a plurality of slitted corners, and a plurality of sensing elements being correspondingly connected to the plurality of slitted corners.
4. The energy harvester of claim 1, wherein: The support layer is provided with a first weight-reducing hole, and the first weight-reducing hole is arranged in the thickness direction of the support layer and coincides with the stress concentration hole.
5. The energy harvester of claim 4, wherein: The support layer further comprises a plurality of second weight-reducing holes, and the plurality of second weight-reducing holes are symmetrically arranged around the first weight-reducing hole.
6. The energy harvester of claim 1, wherein: The energy collector further comprises a film package, and the support layer, the flexible deformation layer and the sensing element are arranged in the film package, and the wire is led out from the inside of the film package.
7. The energy harvester of claim 1, wherein: The sensing element is connected with two wires, and the two wires are connected to the energy collection circuit to form a closed loop, and the energy collection circuit comprises a resistance-voltage conversion module.
8. The energy harvester of claim 1, wherein: The support layer is a metal sheet, and the flexible deformation layer is made of one of polydimethylsiloxane, silica gel and epoxy resin.
9. The energy harvester of claim 1, wherein: The energy collector further comprises at least one adhesive layer arranged between the support layer and the flexible deformation layer.
10. An energy capture system characterized by: The energy collector comprises at least one of the energy collectors according to any one of claims 1-9.