技术领域technical field
本发明属于风能收集器的结构设计技术领域，具体涉及一种复合式风能收集器。The invention belongs to the technical field of structural design of wind energy collectors, in particular to a composite wind energy collector.
背景技术Background technique
风能是自然界中广泛存在的一种可再生的清洁能源，收集风能给在户外工作的无线传感网络、嵌入式低功耗电子器件供电有着广阔的前景。Wind energy is a renewable and clean energy that exists widely in nature. Harvesting wind energy to power wireless sensor networks and embedded low-power electronic devices that work outdoors has broad prospects.
目前，将风能转化成电能的方式主要有三种，分别是：电磁式、压电式和摩擦式。电磁式是一种传统的风能收集方式，通常利用风车的结构驱动转子与定子发生相对运动，从而切割磁感线产生感应电动势。这种风能收集器体积较大，结构复杂且制作成本高。压电式的风能收集器通常设计成悬臂梁结构，利用卡门涡街效应或颤振效应使压电悬臂梁在风中产生形变，从而输出电能。压电式的风能收集器通常共振频率较高，输出电压较小。而摩擦式风能收集器则是基于摩擦生电和静电感应的耦合效应，利用风带动摩擦材料间的周期性碰撞，在外电路产生电荷转移。这类能量收集器有较高的功率输出，但是一般体积较大。因此如何设计一款结构简单、输出可观，体积小的风能收集器是目前亟待解决的技术问题。At present, there are three main ways to convert wind energy into electrical energy: electromagnetic, piezoelectric and friction. The electromagnetic type is a traditional way of collecting wind energy. Usually, the structure of the windmill is used to drive the rotor and the stator to move relative to each other, so as to cut the magnetic induction lines to generate induced electromotive force. This kind of wind energy collector has a large volume, complex structure and high manufacturing cost. Piezoelectric wind energy collectors are usually designed as a cantilever beam structure, and the piezoelectric cantilever beam is deformed in the wind by using the Karman vortex effect or flutter effect, thereby outputting electrical energy. Piezoelectric wind energy harvesters usually have a higher resonance frequency and a lower output voltage. The frictional wind energy collector is based on the coupling effect of frictional electricity generation and electrostatic induction, using wind to drive periodic collisions between frictional materials to generate charge transfer in the external circuit. This type of energy harvester has a high power output, but is generally bulky. Therefore how to design a simple in structure, considerable output, the wind energy collector that volume is little is the technical problem demanding prompt solution at present.
鉴于以上问题，有必要提出一种新型的风能收集器，有效结合压电与摩擦两种风能收集方式，实现风能收集器在低风速条件下输出功率的最大化。In view of the above problems, it is necessary to propose a new type of wind energy collector, which effectively combines the two wind energy collection methods of piezoelectricity and friction to maximize the output power of the wind energy collector under low wind speed conditions.
发明内容Contents of the invention
有鉴于此，本发明提供了一种复合式风能收集器，有效结合压电与摩擦两种风能收集方式，实现风能收集器在低风速条件下输出功率的最大化。In view of this, the present invention provides a composite wind energy collector, which effectively combines piezoelectric and frictional wind energy collection methods to maximize the output power of the wind energy collector under low wind speed conditions.
根据本发明的目的提出的一种复合式风能收集器，包括压电式风能收集模块与摩擦式风能收集模块，所述压电式风能收集模块包括压电悬臂梁与叶片，所述压电悬臂梁一端固定，自由端固定连接叶片，叶片摆动继而带动压电悬臂梁产生周期性上下摆动，压电悬臂梁内部正负电荷分离，产生交流电压输出；A composite wind energy collector proposed according to the purpose of the present invention includes a piezoelectric wind energy collection module and a frictional wind energy collection module, the piezoelectric wind energy collection module includes a piezoelectric cantilever beam and blades, and the piezoelectric cantilever One end of the beam is fixed, and the free end is fixedly connected to the blade. The blade swings and then drives the piezoelectric cantilever to swing up and down periodically. The positive and negative charges inside the piezoelectric cantilever are separated to generate an AC voltage output;
所述摩擦式风能收集模块包括相对设置的金属摩擦层与高分子聚合物层及电极层，所述高分子聚合物层设置于所述电极层上，金属摩擦层与高分子聚合物层周期性的接触分离，实现电子流动，形成交流电输出；The frictional wind energy collection module includes a metal friction layer, a high molecular polymer layer and an electrode layer arranged oppositely, the high molecular polymer layer is arranged on the electrode layer, and the metal friction layer and the high molecular polymer layer are periodically contact separation to realize electron flow and form alternating current output;
所述金属摩擦层或高分子聚合物层与电极层设置于压电悬臂梁的表面上，高分子聚合物层与电极层或金属摩擦层相对于压电悬臂梁固定设置，一压电式风能收集模块至少对应一摩擦式风能收集模块，形成一组复合式风能收集器。The metal friction layer or the high molecular polymer layer and the electrode layer are arranged on the surface of the piezoelectric cantilever beam, and the high molecular polymer layer and the electrode layer or the metal friction layer are fixedly arranged relative to the piezoelectric cantilever beam. A piezoelectric wind energy The collection module corresponds to at least one frictional wind energy collection module, forming a group of composite wind energy collectors.
优选的，所述复合式风能收集器还包括固定结构架，所述固定结构架的上下表面均依次设置有电极层与高分子聚合物层，所述固定结构架的上下侧均对应设置有一压电悬臂梁，所述压电悬臂梁与所述固定结构架表面存在摆动空间，所述压电悬臂梁相对固定结构架的一侧表面上设置金属摩擦层，形成上下对称设置的两组复合式风能收集器。Preferably, the composite wind energy collector also includes a fixed structure frame, the upper and lower surfaces of the fixed structure frame are sequentially provided with electrode layers and polymer layers, and the upper and lower sides of the fixed structure frame are respectively provided with a pressure Electric cantilever beam, there is a swing space between the piezoelectric cantilever beam and the surface of the fixed structure frame, and a metal friction layer is set on the surface of the piezoelectric cantilever beam opposite to the fixed structure frame to form two sets of composite structures symmetrically arranged up and down. Wind energy collector.
优选的，所述高分子聚合物层的表面制作有摩擦结构层。Preferably, a friction structure layer is formed on the surface of the high molecular polymer layer.
优选的，所述摩擦结构层为具有微米级别的金字塔结构。Preferably, the friction structure layer has a micron-level pyramid structure.
优选的，所述固定结构架为T型结构架，所述T型结构架包括垂直设置的横梁与竖梁，横梁的两端分别固定连接压电悬臂梁的固定端，竖梁的两侧表面均依次设置电极层与高分子聚合物层。Preferably, the fixed structural frame is a T-shaped structural frame, and the T-shaped structural frame includes vertical beams and vertical beams. The electrode layer and the polymer layer are arranged in sequence.
优选的，所述叶片铰连接于所述压电悬臂梁的自由端上，所述叶片与所述压电悬臂梁为平行连接、垂直叶片中部连接或垂直叶片底部连接。Preferably, the blade is hinged to the free end of the piezoelectric cantilever beam, and the blade and the piezoelectric cantilever beam are connected in parallel, vertically to the middle of the blade, or vertically to the bottom of the blade.
优选的，所述叶片为三角形叶片，且所述三角形叶片的底边与高度相等。Preferably, the blade is a triangular blade, and the base of the triangular blade is equal to the height.
优选的，所述叶片与压电悬臂梁的自由端通过合页铰连接固定。Preferably, the blade is fixed to the free end of the piezoelectric cantilever beam through a hinge connection.
与现有技术相比，本发明公开的复合式风能收集器的优点是：Compared with the prior art, the advantages of the composite wind energy collector disclosed by the present invention are:
该风能收集器包括压电式风能收集模块与摩擦式风能收集模块，风力作用叶片摆动继而带动压电悬臂梁产生周期性上下摆动，压电悬臂梁内部正负电荷分离，产生交流电压输出；与此同时金属摩擦层与高分子聚合物层周期性的接触分离，实现电子流动，形成交流电输出。有效结合压电与摩擦两种风能收集方式，实现风能收集器在低风速条件下的高功率输出。摩擦与压电两种能量采集方式同时工作，提高风能收集器的高能量密度输出。The wind energy collector includes a piezoelectric wind energy collection module and a frictional wind energy collection module. The wind acts on the blades to swing and then drives the piezoelectric cantilever beam to swing up and down periodically. The positive and negative charges inside the piezoelectric cantilever beam are separated to generate an AC voltage output; and At the same time, the metal friction layer and the polymer layer are periodically contacted and separated to realize electron flow and form an alternating current output. Effectively combining piezoelectric and frictional wind energy collection methods to achieve high power output of the wind energy collector under low wind speed conditions. The friction and piezoelectric energy harvesting methods work simultaneously to improve the high energy density output of the wind energy collector.
通过对叶片的结构形式以及叶片与压电悬臂梁的连接位置进行限定，实现压电悬臂梁的大振幅、高电压输出，实现输出功率的最大化。By limiting the structural form of the blade and the connection position between the blade and the piezoelectric cantilever beam, the large amplitude and high voltage output of the piezoelectric cantilever beam are realized, and the output power is maximized.
此外，可有效简化风能收集器的结构组成，减小体积。In addition, the structural composition of the wind energy collector can be effectively simplified and the volume reduced.
附图说明Description of drawings
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention. Those skilled in the art can also obtain other drawings based on these drawings without creative work.
图1为本发明公开的复合式风能收集器的结构示意图。Fig. 1 is a structural schematic diagram of a composite wind energy collector disclosed in the present invention.
图2为工作原理图。Figure 2 is a working principle diagram.
图3为电压输出效果图。Figure 3 is the effect diagram of the voltage output.
图4为叶片与悬臂梁连接方式图。Figure 4 is a diagram of the connection between the blade and the cantilever beam.
图中的数字或字母所代表的相应部件的名称：The names of the corresponding parts represented by numbers or letters in the figure:
1、压电悬臂梁 2、金属摩擦层 3、高分子聚合物层 4、电极层 5、叶片 6、T型结构架 7、摩擦结构层 61、横梁 62、竖梁1. Piezoelectric cantilever beam 2. Metal friction layer 3. Polymer layer 4. Electrode layer 5. Blade 6. T-shaped structure frame 7. Friction structure layer 61. Beam 62. Vertical beam
具体实施方式detailed description
传统方式采用单一风能收集器工作，但单一的电磁式风能收集器体积较大，结构复杂且制作成本高。压电式的风能收集器通常共振频率较高，输出电压较小，而摩擦式风能收集器有较高的功率输出，但是一般体积较大，存在诸多问题与不足。The traditional method uses a single wind energy collector to work, but the single electromagnetic wind energy collector has a large volume, complex structure and high production cost. Piezoelectric wind energy harvesters usually have a higher resonance frequency and lower output voltage, while friction wind energy harvesters have higher power output, but are generally larger in size and have many problems and deficiencies.
本发明针对现有技术中的不足，提供了一种复合式风能收集器，有效结合压电与摩擦两种风能收集方式，实现风能收集器在低风速条件下输出功率的最大化。Aiming at the deficiencies in the prior art, the present invention provides a composite wind energy collector, which effectively combines two wind energy collection methods of piezoelectricity and friction, so as to realize the maximization of the output power of the wind energy collector under low wind speed conditions.
下面将通过具体实施方式对本发明的技术方案进行清楚、完整地描述。显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。The technical solutions of the present invention will be clearly and completely described below through specific embodiments. Apparently, the described embodiments are only some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
一种复合式风能收集器，包括压电式风能收集模块与摩擦式风能收集模块，压电式风能收集模块包括压电悬臂梁与叶片，压电悬臂梁一端固定，自由端固定连接叶片，叶片摆动继而带动压电悬臂梁产生周期性上下摆动，压电悬臂梁内部正负电荷分离，产生交流电压输出。A composite wind energy collector, including a piezoelectric wind energy collection module and a frictional wind energy collection module, the piezoelectric wind energy collection module includes a piezoelectric cantilever beam and a blade, one end of the piezoelectric cantilever beam is fixed, and the free end is fixedly connected to the blade, the blade The swing then drives the piezoelectric cantilever to swing up and down periodically, and the positive and negative charges inside the piezoelectric cantilever are separated to generate an AC voltage output.
摩擦式风能收集模块包括相对设置的金属摩擦层与高分子聚合物层及电极层，高分子聚合物层设置于所述电极层上，金属摩擦层与高分子聚合物层周期性的接触分离，实现电子流动，形成交流电输出。The frictional wind energy collection module includes a metal friction layer, a high molecular polymer layer and an electrode layer arranged oppositely. The high molecular polymer layer is arranged on the electrode layer, and the metal friction layer and the high molecular polymer layer are periodically contacted and separated. Realize the flow of electrons and form an alternating current output.
金属摩擦层或高分子聚合物层与电极层设置于压电悬臂梁的表面上，高分子聚合物层与电极层或金属摩擦层相对于压电悬臂梁固定设置，一压电式风能收集模块至少对应一摩擦式风能收集模块，形成一组复合式风能收集器。The metal friction layer or the high molecular polymer layer and the electrode layer are arranged on the surface of the piezoelectric cantilever beam, and the high molecular polymer layer and the electrode layer or the metal friction layer are fixedly arranged relative to the piezoelectric cantilever beam, a piezoelectric wind energy collection module Corresponding to at least one frictional wind energy collection module, a group of composite wind energy collectors is formed.
该风能收集器有效结合压电与摩擦两种风能收集方式，实现风能收集器在低风速条件下的高功率输出。The wind energy collector effectively combines two wind energy collection methods of piezoelectricity and friction to realize high power output of the wind energy collector under low wind speed conditions.
实施例1Example 1
如图1所示，本发明中的复合式风能收集器包括固定结构架，本实施例中该固定结构架为T型结构架6，T型结构架卧式放置，T型结构架6的上下表面均依次设置有电极层4与高分子聚合物层3，T型结构架6的上下侧均对应设置有一压电悬臂梁1，压电悬臂梁1与T型结构架6表面存在摆动空间，压电悬臂梁1相对T型结构架6的一侧表面上设置金属摩擦层2，形成上下对称设置的两组复合式风能收集器。其中，T型结构架还可立式放置，具体方式不做限制。As shown in Figure 1, the composite wind energy collector among the present invention comprises a fixed structure frame, and this fixed structure frame is a T-shaped structure frame 6 in the present embodiment, and the T-shaped structure frame is placed horizontally, and the top and bottom of the T-shaped structure frame 6 The surface is provided with an electrode layer 4 and a polymer layer 3 in sequence, and a piezoelectric cantilever 1 is arranged on the upper and lower sides of the T-shaped structural frame 6. There is a swing space between the piezoelectric cantilever beam 1 and the surface of the T-shaped structural frame 6. A metal friction layer 2 is provided on the surface of the piezoelectric cantilever beam 1 opposite to the T-shaped structural frame 6 to form two groups of composite wind energy collectors arranged symmetrically up and down. Wherein, the T-shaped structural frame can also be placed vertically, and the specific method is not limited.
两个压电悬臂梁1对称分布在T形结构架6的顶部和底部，T型结构架6横梁的两端分别固定连接压电悬臂梁1的固定端，T型结构架6竖梁的两侧表面均依次设置电极层与高分子聚合物层。压电悬臂梁1的自由端用合页与两个三角形叶片5铰接，本实施例中采用垂直连接的方式。Two piezoelectric cantilever beams 1 are symmetrically distributed on the top and bottom of the T-shaped structural frame 6. Electrode layers and high molecular polymer layers are sequentially arranged on the side surfaces. The free end of the piezoelectric cantilever beam 1 is hinged to two triangular blades 5 by a hinge, and a vertical connection is adopted in this embodiment.
在摩擦部分，两组电极层4和高分子聚合物层3依次对称粘贴于T形结构架6的上下表面，形成三明治结构。金属摩擦层2则固定在压电悬臂梁1的内表面，金属摩擦层2同时也充当另一个电极层。当风从侧面图示方向吹过时，压电悬臂梁在风中产生颤振效应，形成周期性的上下摆动。这种颤振会使压电悬臂梁发生形变，内部正负电荷分离，产生交流电压输出。而压电悬臂梁振动时会带动其内表面的金属摩擦层与高分子聚合物层发生周期性碰撞。根据摩擦起电和静电感应原理，两种得失电子能力不同的摩擦材料相互接触分离同样会产生电能输出。In the friction part, two sets of electrode layers 4 and polymer layers 3 are sequentially and symmetrically pasted on the upper and lower surfaces of the T-shaped frame 6 to form a sandwich structure. The metal friction layer 2 is fixed on the inner surface of the piezoelectric cantilever 1, and the metal friction layer 2 also serves as another electrode layer. When the wind blows from the direction shown in the side view, the piezoelectric cantilever beam will produce a flutter effect in the wind, forming a periodic up and down swing. This flutter causes the piezoelectric cantilever to deform, and the internal positive and negative charges are separated to generate an AC voltage output. When the piezoelectric cantilever beam vibrates, it will drive the metal friction layer on its inner surface to collide with the polymer layer periodically. According to the principles of triboelectrification and electrostatic induction, two kinds of friction materials with different electron gain and loss capabilities will also generate electric energy output when they contact and separate from each other.
为了提高该风能收集器摩擦部分的电压输出，本专利在高分子聚合物层的表面制作有摩擦结构层7，摩擦结构层7为微米级别的金字塔结构，该结构可直接通过高分子聚合物层本身直接成型，无需另外设置，这种结构能有效增大摩擦材料间的摩擦面积，提高电荷转移密度，从而提高电压的输出。其中摩擦结构层的结构形式可根据需要设定，在此不做限制。In order to improve the voltage output of the friction part of the wind energy collector, this patent has a friction structure layer 7 on the surface of the high molecular polymer layer. The friction structure layer 7 is a micron-level pyramid structure, which can directly pass through the high molecular polymer layer. It is formed directly without additional settings. This structure can effectively increase the friction area between friction materials, increase the charge transfer density, and thus increase the voltage output. The structural form of the friction structural layer can be set according to needs, and is not limited here.
图2是高分子聚合物层3和金属摩擦层2周期性碰撞过程中电荷转移图。其工作原理是基于摩擦生电与静电感应耦合效应。当压电悬臂梁1在风中上下振动，其内表面的金属摩擦层2与高分子聚合物层3发生周期性的接触分离，如图2(a)-(d)所示。金属摩擦层易失电子，而高分子聚合物层易得电子。当两者相互接触后，会分别带上正负电荷，如图2(a)。而两者相互分离时，会有电势差出现，电势差将驱动电子在外电路流动如图2(b)-(c)。当两种摩擦材料再次相互靠近时，由于静电感应原理，电子会在外电路反向流动，如图2(d)，从而形成交流电输出。FIG. 2 is a charge transfer diagram during periodic collisions between the polymer layer 3 and the metal friction layer 2 . Its working principle is based on the coupling effect of friction generation and electrostatic induction. When the piezoelectric cantilever 1 vibrates up and down in the wind, the metal friction layer 2 on its inner surface and the polymer layer 3 periodically contact and separate, as shown in Figure 2(a)-(d). The metal friction layer is easy to lose electrons, while the polymer layer is easy to get electrons. When the two are in contact with each other, they will be charged with positive and negative charges respectively, as shown in Figure 2(a). When the two are separated from each other, there will be a potential difference, and the potential difference will drive electrons to flow in the external circuit as shown in Figure 2(b)-(c). When the two friction materials are close to each other again, due to the principle of electrostatic induction, electrons will flow in reverse in the external circuit, as shown in Figure 2(d), thus forming an alternating current output.
为了增大压电悬臂梁的振幅，提高风能收集器的电压输出，本专利设计了三角形的叶片与之相连。三角形叶片的底边和高相等，可采用PET等塑料材质材料制成。三角形的尺寸可有多种选择，当尺寸较小时，风能收集器需要较高的起始工作风速，而尺寸较大时叶片间可能会相互拍打，导致振动不稳定。具体操作时可根据实际需要设计合适尺寸的叶片。In order to increase the amplitude of the piezoelectric cantilever and increase the voltage output of the wind energy collector, this patent designs a triangular blade connected to it. The base and the height of the triangular blade are equal, and can be made of plastic materials such as PET. There are many options for the size of the triangle. When the size is small, the wind energy collector needs a high initial working wind speed, and when the size is large, the blades may beat each other, resulting in unstable vibration. During the specific operation, blades of appropriate size can be designed according to actual needs.
三角形叶片与压电悬臂梁间的连接方式同样有多种方式，不同的连接方式可产生不同的输出效果。图3是三种可行的连接方式：平行连接(a)、垂直中部连接(b)和垂直底部连接(c)。平行连接的方式可降低该装置工作的起始风速，但是其电压输出相对较小，而垂直中部连接方式需要较高的风速条件，但可产生高电压输出。垂直底部连接的方式可进一步增大压电悬臂梁的振幅，有着最佳的输出。There are also multiple ways of connection between the triangular blade and the piezoelectric cantilever beam, and different connection ways can produce different output effects. Figure 3 shows three possible connection methods: parallel connection (a), vertical middle connection (b) and vertical bottom connection (c). The parallel connection can reduce the initial wind speed of the device, but its voltage output is relatively small, while the vertical middle connection requires high wind speed conditions, but can generate high voltage output. The vertical bottom connection can further increase the amplitude of the piezoelectric cantilever beam, and has the best output.
其中，叶片的形状还可为长方形或多边形或椭圆形等结构，具体形状不做限制。Wherein, the shape of the blade can also be a rectangular, polygonal or elliptical structure, and the specific shape is not limited.
如图4所示，采用复合式风能收集器，随着风速的增大，输出电压有明显的提高。图4(a)和(b)分别为4.5m/s风速条件下压电和摩擦两部分的输出波形。压电悬臂梁的振动频率10Hz左右，峰值电压输出可达到5.6V。摩擦部分电压频率与压电部分相同，最大峰值电压输出为5.8V。输出功率较单一结构形式的收集器有明显的提高。As shown in Figure 4, using a composite wind energy collector, the output voltage increases significantly as the wind speed increases. Figure 4(a) and (b) are the output waveforms of piezoelectric and friction parts under the condition of 4.5m/s wind speed respectively. The vibration frequency of the piezoelectric cantilever beam is about 10Hz, and the peak voltage output can reach 5.6V. The voltage frequency of the friction part is the same as that of the piezoelectric part, and the maximum peak voltage output is 5.8V. The output power is significantly improved compared with the collector with a single structure.
实施例2Example 2
其余与实施例1相同，不同之处在于，固定结构架可为L型结构，电极层与其上的高分子聚合物层均设置于L型结构架的上表面上，压电悬臂梁固定端固定于L型结构架的顶端，金属摩擦层位于压电悬臂梁的内表面上，形成一组复合式风能收集器。其中复合式风能收集器还可设置多组，具体实现方式根据需要设定，在此不做限制。The rest are the same as in Embodiment 1, the difference is that the fixed structure frame can be an L-shaped structure, the electrode layer and the polymer layer on it are all arranged on the upper surface of the L-shaped structure frame, and the fixed end of the piezoelectric cantilever beam is fixed On the top of the L-shaped structural frame, the metal friction layer is located on the inner surface of the piezoelectric cantilever beam, forming a group of composite wind energy collectors. Among them, multiple sets of composite wind energy collectors can also be set, and the specific implementation method can be set according to needs, and there is no limitation here.
此外，金属摩擦层与高分子聚合物层及电极层还可位置互换，将金属摩擦层设置在固定结构架上，电极层与高分子聚合物层设置于压电悬臂梁内表面上，具体方式不做限制。In addition, the positions of the metal friction layer, the high molecular polymer layer and the electrode layer can also be interchanged, the metal friction layer is arranged on the fixed structure frame, and the electrode layer and the high molecular polymer layer are arranged on the inner surface of the piezoelectric cantilever beam. The method is not limited.
本发明公开了一种复合式风能收集器，通过在T型结构架的上下表面均依次设置电极层与高分子聚合物层，T型结构架的上下侧均对应设置有一压电悬臂梁，压电悬臂梁相对T型结构架的一侧表面上设置金属摩擦层，形成上下对称设置的两组复合式风能收集器。该风能收集器结合压电式风能收集模块与摩擦式风能收集模块。工作时风自侧面吹向该风能收集器，风力作用叶片摆动继而带动压电悬臂梁产生周期性上下摆动，压电悬臂梁内部正负电荷分离，产生交流电压输出；与此同时金属摩擦层与高分子聚合物层周期性的接触分离，实现电子流动，形成交流电输出。有效结合压电与摩擦两种风能收集方式，实现风能收集器在低风速条件下的高功率输出。The invention discloses a composite wind energy collector. Electrode layers and polymer layers are sequentially arranged on the upper and lower surfaces of a T-shaped structural frame, and a piezoelectric cantilever beam is correspondingly arranged on the upper and lower sides of the T-shaped structural frame. A metal friction layer is arranged on the surface of the electric cantilever beam opposite to the T-shaped structural frame to form two groups of composite wind energy collectors arranged symmetrically up and down. The wind energy collector combines piezoelectric wind energy collection modules and friction wind energy collection modules. When working, the wind blows to the wind energy collector from the side, and the wind acts on the blades to swing and then drives the piezoelectric cantilever to swing up and down periodically. The positive and negative charges inside the piezoelectric cantilever are separated to generate an AC voltage output; at the same time, the metal friction layer and the The polymer layers are periodically contacted and separated to realize the flow of electrons and form an alternating current output. Effectively combining piezoelectric and frictional wind energy collection methods to achieve high power output of the wind energy collector under low wind speed conditions.
通过对叶片的结构形式以及叶片与压电悬臂梁的连接位置进行限定，实现压电悬臂梁的大振幅、高电压输出，实现输出功率的最大化。By limiting the structural form of the blade and the connection position between the blade and the piezoelectric cantilever beam, the large amplitude and high voltage output of the piezoelectric cantilever beam are realized, and the output power is maximized.
摩擦与压电两种能量采集方式同时工作，提高风能收集器的高能量密度输出。The friction and piezoelectric energy harvesting methods work simultaneously to improve the high energy density output of the wind energy collector.
此外，可有效简化风能收集器的结构组成，减小体积。In addition, the structural composition of the wind energy collector can be effectively simplified and the volume reduced.
对所公开的实施例的上述说明，使本领域专业技术人员能够实现或使用本发明。对这些实施例的多种修改对本领域的专业技术人员来说将是显而易见的，本文中所定义的一般原理可以在不脱离本发明的精神或范围的情况下，在其它实施例中实现。因此，本发明将不会被限制于本文所示的这些实施例，而是要符合与本文所公开的原理和新颖特点相一致的最宽的范围。The above description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the present invention will not be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610239161.5ACN105680723B (en) | 2016-04-18 | 2016-04-18 | A kind of combined type wind energy collecting device |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610239161.5ACN105680723B (en) | 2016-04-18 | 2016-04-18 | A kind of combined type wind energy collecting device |
| Publication Number | Publication Date |
|---|---|
| CN105680723A CN105680723A (en) | 2016-06-15 |
| CN105680723Btrue CN105680723B (en) | 2017-06-16 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610239161.5AActiveCN105680723B (en) | 2016-04-18 | 2016-04-18 | A kind of combined type wind energy collecting device |
| Country | Link |
|---|---|
| CN (1) | CN105680723B (en) |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107359813B (en)* | 2017-08-17 | 2019-02-22 | 浙江师范大学 | A kind of tunnel driving air-induced vibration energy harvester |
| CN107623462A (en)* | 2017-09-15 | 2018-01-23 | 哈尔滨工程大学 | A bionic optimized piezoelectric energy harvesting device with reinforced structure |
| CN108457802B (en)* | 2017-12-27 | 2019-07-23 | 国网江西省电力有限公司电力科学研究院 | A kind of small-sized wind energy collector based on four phase magnetic states transformation and piezoelectric effect |
| CN108809140A (en)* | 2018-06-19 | 2018-11-13 | 厦门大学 | Wind power generation plant and electricity-generating method |
| CN110027706B (en)* | 2019-04-04 | 2023-06-06 | 上海理工大学 | Novel flapping-wing energy-capturing device and control method for swinging trailing edge |
| CN110043423B (en)* | 2019-04-04 | 2020-11-10 | 上海理工大学 | A new type of vertical axis wind turbine with movable trailing edge blades |
| CN111525769A (en)* | 2020-05-13 | 2020-08-11 | 中北大学 | Magnetic pendulum type electromagnetic-piezoelectric composite energy collector |
| CN112187103B (en)* | 2020-11-15 | 2021-10-01 | 浙江师范大学 | A Turbine Piezo-Triboelectric Generator with Constant Amplitude Excitation |
| CN113266524A (en)* | 2021-05-14 | 2021-08-17 | 母志长 | Running air flow generator |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10221420A1 (en)* | 2002-05-14 | 2003-12-11 | Enocean Gmbh | Device for converting mechanical energy into electrical energy |
| CN104124887B (en)* | 2013-04-24 | 2016-04-06 | 纳米新能源（唐山）有限责任公司 | Wind-driven generator |
| US9444031B2 (en)* | 2013-06-28 | 2016-09-13 | Samsung Electronics Co., Ltd. | Energy harvester using mass and mobile device including the energy harvester |
| CN105186922B (en)* | 2015-10-27 | 2017-06-09 | 南昌工程学院 | Piezoelectricity friction replies box-like MEMS widebands energy collecting device and preparation method thereof by cable |
| CN205725522U (en)* | 2016-04-18 | 2016-11-23 | 苏州大学 | A composite wind energy collector |
| Publication number | Publication date |
|---|---|
| CN105680723A (en) | 2016-06-15 |
| Publication | Publication Date | Title |
|---|---|---|
| CN105680723B (en) | A kind of combined type wind energy collecting device | |
| CN105680717B (en) | A kind of vane type composite wind pwoer energy harvester | |
| US8102072B2 (en) | Aerodynamic vibration power-generation device | |
| CN106357159B (en) | A kind of Nonlinear Vortex-induced energy collecting device of power-electricity-flow coupling | |
| CN107453647B (en) | Wide speed domain magnetic coupling piezoelectricity wind energy collector | |
| CN104993737B (en) | A kind of bidirectional energy harvester based on Flow vibration | |
| CN107994808A (en) | Alternation flexion type wind-force piezoelectric energy collector | |
| CN111313754B (en) | Bionic wind power generation array and wind power generation device | |
| CN108512390A (en) | A kind of pendulum model electromagnetism-friction energy composite energy collector | |
| CN106382191B (en) | A kind of wind-induced vibration piezoelectric energy collecting device | |
| CN102611351A (en) | Piezoelectricity-magnetic electricity mixed energy collection device | |
| CN111049426A (en) | A piezoelectric multi-directional, broadband vibration energy harvesting device | |
| CN105932905B (en) | A kind of electricity energy harvester based on double sink-float free degree Flow vibrations | |
| CN110572076B (en) | Multi-direction piezoelectric vibration energy collecting device | |
| CN205725515U (en) | A blade-type composite wind energy harvester | |
| CN106374777A (en) | An S-type piezoelectric cantilever beam vibration energy harvester | |
| CN102647112A (en) | Rotary piezoelectric generator | |
| CN108023502A (en) | A kind of beam type negative stiffness device for collecting piezoelectric vibration energy | |
| CN114362590B (en) | A piezoelectric vibration control structure for wind turbine blades and its passive control method | |
| CN205725522U (en) | A composite wind energy collector | |
| CN102868203B (en) | Wine energy power generating device | |
| CN114865943A (en) | A Piezo-Triboelectric Coupled Energy Harvesting Device for Wind-induced Vibration | |
| CN106286139B (en) | A concentrated wind energy piezoelectric energy harvesting device | |
| CN206650602U (en) | Bluff body vortex-induced vibration energy collecting device with rough surface band | |
| CN206759340U (en) | Corrugated piezoelectric cantilever beam vibration energy collector |
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right | Effective date of registration:20191209 Address after:Room 1706, block B, building 2, Lifeng business center, Wuzhong District, Suzhou City, Jiangsu Province Patentee after:Suzhou Xinmu Intellectual Property Service Co.,Ltd. Address before:215123 No. 199 benevolence Road, Suzhou Industrial Park, Jiangsu, China Patentee before:Soochow University | |
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right | Effective date of registration:20221201 Address after:276000 east side of North Head of Yanbin Road, Feixian Economic Development Zone, Linyi City, Shandong Province Patentee after:KEMET NEW MATERIAL TECHNOLOGY CO.,LTD. Address before:Room 1706, block B, building 2, Lifeng business center, Wuzhong District, Suzhou City, Jiangsu Province Patentee before:Suzhou Xinmu Intellectual Property Service Co.,Ltd. | |
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right | Effective date of registration:20240922 Address after:No.23 Zhongshan North Road, Xishan Town, Guiping City, Guigang City, Guangxi Zhuang Autonomous Region 537200 Patentee after:Li Haizhi Country or region after:China Address before:276000 east side of North Head of Yanbin Road, Feixian Economic Development Zone, Linyi City, Shandong Province Patentee before:KEMET NEW MATERIAL TECHNOLOGY CO.,LTD. Country or region before:China |