技术领域technical field
本发明属于微能量收集和海洋发电技术领域，具体涉及带防波浮筒的阵列式压电悬臂梁波能转换装置。The invention belongs to the technical field of micro-energy collection and ocean power generation, and in particular relates to an array type piezoelectric cantilever beam wave energy conversion device with a wave-proof buoy.
背景技术Background technique
海洋中的海水受气候及大风的作用，经常产生起伏的波浪，这些海浪是可再生的能源，同时，也携带着巨大的冲击力，为了防止海浪对海上设施及船体造成不好的影响，削减波浪波幅，减小冲击力，人们建造了防波装置，这些防波装置的形式多种多样，但是工作原理都是通过特有的结构吸收或者耗散掉入射波的能量，从而达到降低波幅，削波防波的目的。The seawater in the ocean is affected by climate and strong winds, and often produces undulating waves. These waves are renewable energy, and at the same time, they also carry huge impact. In order to prevent the waves from causing adverse effects on offshore facilities and hulls, reduce Wave amplitude reduces the impact force. People have built anti-wave devices. These anti-wave devices have various forms, but the working principle is to absorb or dissipate the energy of the incident wave through a unique structure, so as to reduce the wave amplitude and reduce the impact force. The purpose of anti-wave.
现有的防波装置大多数以防波堤的形式存在，分为重型和轻型两种。而防波堤的体积往往十分庞大，在建造及维修方面都存在难度。另外，现阶段能够实现消波作用并将波浪能转换为电能的装置，大部分都是使用纯机械结构，发电效率低，且使用寿命不长，需要经常维修和更换，鉴于海上发电装置维修困难的情况，这种发电结构的使用前景不明朗。Most of the existing anti-wave devices exist in the form of breakwaters, which are divided into heavy and light types. The volume of breakwaters is often very large, and there are difficulties in construction and maintenance. In addition, most of the devices that can achieve wave absorption and convert wave energy into electrical energy at this stage use purely mechanical structures, which have low power generation efficiency and short service life, requiring frequent maintenance and replacement. In view of the difficulty in maintaining offshore power generation devices However, the prospects for the use of this power generation structure are uncertain.
现有的防波装置大多数以防波堤的形式存在，分为重型和轻型两种。而防波堤的体积往往十分庞大，在建造及维修方面都存在难度，如魏东泽在专利(公开号为CN204041339U)中提到了设于防波堤上的波浪发电装置，虽然能进行海浪波浪能的削减和转换，但是装置复杂、庞大，不利于实际的操作和维修，现阶段能够实现消波作用并将波浪能转换为电能的装置，大部分都是使用纯机械结构，发电效率低，且使用寿命不长，需要经常维修和更换，鉴于海上发电装置维修困难的情况，这种发电结构的使用前景不明朗。Most of the existing anti-wave devices exist in the form of breakwaters, which are divided into heavy and light types. And the volume of the breakwater is often very large, and there are difficulties in construction and maintenance. As Wei Dongze mentioned in the patent (publication number is CN204041339U) the wave power generation device located on the breakwater, although it can reduce and convert the wave energy of the sea, However, the device is complex and bulky, which is not conducive to actual operation and maintenance. At this stage, most of the devices that can achieve wave dissipation and convert wave energy into electrical energy use purely mechanical structures, which have low power generation efficiency and short service life. Frequent repairs and replacements are required, and given the difficult maintenance conditions of offshore power generation units, the prospects for the use of this power generation structure are uncertain.
一方面，海洋上的防波结构建造困难，且消波结构消散的波浪能未能得到充分利用，另一方面，目前使用的波浪能压电发电装置普遍存在结构复杂，密封性差，稳定性不强的缺陷，因此，针对以上问题，本发明中提供了一种解决方案。On the one hand, the construction of anti-wave structures on the ocean is difficult, and the wave energy dissipated by the wave-absorbing structures has not been fully utilized; Strong defects, therefore, for the above problems, the present invention provides a solution.
我们知道，在有些具有电介质特性的材料的特定方向上施加一定的外力，就会使其材料中产生极化，并导致相对表面上分别聚集正电荷和负电荷，显示带电性。在把施加的外力取消之后，恢复原始的形态，其电性也随之消失，我们将这种现象叫做正压电效应。而具有这种特性的材料称为压电材料。利用压电材料的压电特性，可以巧妙的将动能、势能等转化为电能。We know that applying a certain external force in a specific direction of some materials with dielectric properties will cause polarization in the material, and cause positive and negative charges to accumulate on the opposite surface, showing electrification. After the applied external force is canceled, the original form is restored, and its electrical property also disappears. We call this phenomenon the positive piezoelectric effect. Materials with this property are called piezoelectric materials. Utilizing the piezoelectric properties of piezoelectric materials, kinetic energy, potential energy, etc. can be skillfully converted into electrical energy.
结合压电材料的这一特性，我们提供了一种结构简单、发电效率高、稳定性好且功率输出稳定的带防波浮筒的阵列式压电悬臂梁波能转换装置，能够最大限度利用圆柱浮筒的结构削减波浪波幅，又能够利用浮筒和波浪之间的波幅差进行波浪能与电能的转化，提供给海岸用电设施，达到紧急供电或自主供电的目的。Combining this characteristic of piezoelectric materials, we provide an array type piezoelectric cantilever beam wave energy conversion device with anti-wave buoys, which has simple structure, high power generation efficiency, good stability and stable power output, which can maximize the use of cylindrical The structure of the buoy reduces the wave amplitude, and can use the wave amplitude difference between the buoy and the wave to convert wave energy and electric energy, and provide it to coastal power facilities to achieve the purpose of emergency power supply or independent power supply.
发明内容Contents of the invention
本发明的目的在于提供一种带防波浮筒的阵列式压电悬臂梁波能转换装置，以解决目前消波结构对波浪能转换效率较低、压电波浪能发电结构复杂，密封性和稳定性差等问题。The purpose of the present invention is to provide an array type piezoelectric cantilever beam wave energy conversion device with anti-wave buoys to solve the problems of low wave energy conversion efficiency of the current wave absorbing structure, complex structure of piezoelectric wave energy generation, sealing and stability gender issues.
本发明的目的是这样实现的：The purpose of the present invention is achieved like this:
防波浮筒的阵列式压电悬臂梁波能转换装置,包括防波浮筒1、固定支座体2和压电发电箱3，所述的防波浮筒1为实心圆柱体；在防波浮筒1的侧面母线处有一个平面，在该平面上有固定支座体2，固定支座体2的一面与防波浮筒1固定连接，另一面与压电发电箱3铰接连接；压电发电箱3相对于防波浮筒1随着海浪只上下摆动而不移动，最终将海浪的波浪能转换为电能。The array type piezoelectric cantilever beam wave energy conversion device of the wave-proof buoy comprises a wave-proof buoy 1, a fixed support body 2 and a piezoelectric power generation box 3. The wave-proof buoy 1 is a solid cylinder; the wave-proof buoy 1 There is a plane at the bus bar on the side of the bus, on which there is a fixed support body 2, one side of the fixed support body 2 is fixedly connected with the anti-wave buoy 1, and the other side is hingedly connected with the piezoelectric generator box 3; the piezoelectric generator box 3 Compared with the anti-wave buoy 1, it only swings up and down without moving along with the waves, and finally converts the wave energy of the waves into electrical energy.
所述的压电发电箱3由箱体3-1、盖板3-2、密封圈3-8、压电发电组件组成。The piezoelectric generator box 3 is composed of a box body 3-1, a cover plate 3-2, a sealing ring 3-8, and a piezoelectric generator assembly.
所述的箱体3-1为中空立方体结构，箱体3-1和盖板3-2之间安装有密封圈3-8，箱体3-1和盖板3-2之间固定连接，盖板3-2的长和宽分别等于箱体3-1的长和宽。The box body 3-1 is a hollow cubic structure, a sealing ring 3-8 is installed between the box body 3-1 and the cover plate 3-2, and the box body 3-1 and the cover plate 3-2 are fixedly connected, The length and width of the cover plate 3-2 are respectively equal to the length and width of the box body 3-1.
所述的压电发电组件包括质量块3-3、悬臂梁3-4、压电体3-5、悬臂梁固定架3-6、压板3-7，其中质量块3-3、悬臂梁3-4、压电体3-5构成压电悬臂梁。The piezoelectric power generation assembly includes a mass block 3-3, a cantilever beam 3-4, a piezoelectric body 3-5, a cantilever beam fixing frame 3-6, and a pressing plate 3-7, wherein the mass block 3-3, the cantilever beam 3 -4. The piezoelectric body 3-5 constitutes a piezoelectric cantilever beam.
所述的质量块3-3和压电体3-5均和悬臂梁3-4固定连接，压电体3-5分别固定在悬臂梁3-4的上、下表面或其中一个表面上且靠近悬臂梁3-4的根部位置即远离固定支座体2方向，质量块3-3固定在悬臂梁3-4上的靠近固定支座体2方向的某一位置，质量块3-3和压电体3-5的宽度等于悬臂梁3-4的宽度，质量块3-3和压电体3-5的长度小于悬臂梁3-4的长度，每个悬臂梁3-4上的质量块3-3的大小、形状、质量相同，每个悬臂梁3-4上的压电体3-5的大小、形状、质量相同。The mass block 3-3 and the piezoelectric body 3-5 are fixedly connected to the cantilever beam 3-4, and the piezoelectric body 3-5 is respectively fixed on the upper and lower surfaces of the cantilever beam 3-4 or one of the surfaces and The position near the root of the cantilever beam 3-4 is away from the direction of the fixed support body 2, the mass block 3-3 is fixed on a certain position on the cantilever beam 3-4 close to the direction of the fixed support body 2, the mass block 3-3 and The width of the piezoelectric body 3-5 is equal to the width of the cantilever beam 3-4, the length of the mass block 3-3 and the piezoelectric body 3-5 is less than the length of the cantilever beam 3-4, and the mass on each cantilever beam 3-4 The size, shape and quality of the blocks 3-3 are the same, and the size, shape and quality of the piezoelectric bodies 3-5 on each cantilever beam 3-4 are the same.
所述的悬臂梁固定架3-6的一端固定连接在箱体3-1内壁上，另一端与悬臂梁3-4固定连接。One end of the cantilever beam fixing frame 3-6 is fixedly connected to the inner wall of the box body 3-1, and the other end is fixedly connected to the cantilever beam 3-4.
所述的压电悬臂梁的数量至少一个，压电悬臂梁的排列方式为线性阵列式分布。There is at least one piezoelectric cantilever, and the piezoelectric cantilever is arranged in a linear array.
本发明的有益效果在于：本发明未采用传统结构中锚块与系泊线的组合，而是利用浮筒结构的特点，使整个装置能够自主浮在海面，稳定性高，又让整个装置可移动、安装不受海域限制；采用防波浮筒1与压电悬臂梁发电装置结合的方式，既起到了削减波浪的作用，又达到了将对防波装置造成冲击的能量再利用，进行波浪能发电的效果；采用线性阵列式的压电悬臂梁结构，实现了对多个频率波浪能同时捕获，并且增加压电悬臂梁之间的振动频率，提高了波浪能的利用率；将防波装置模块化，简化建造流程，降低建造成本，并提高了整个装置的可维修性，延长使用寿命，降低维修成本。The beneficial effect of the present invention is that: the present invention does not use the combination of the anchor block and the mooring line in the traditional structure, but utilizes the characteristics of the buoy structure, so that the whole device can float on the sea surface independently, with high stability, and the whole device can be moved , The installation is not limited by the sea area; the combination of the anti-wave buoy 1 and the piezoelectric cantilever beam power generation device not only plays a role in reducing waves, but also achieves the reuse of energy that impacts the anti-wave device for wave energy generation effect; adopting the linear array piezoelectric cantilever beam structure realizes the simultaneous capture of wave energy of multiple frequencies, and increases the vibration frequency between the piezoelectric cantilever beams to improve the utilization rate of wave energy; the anti-wave device module simplifies the construction process, reduces construction costs, improves the maintainability of the entire device, prolongs the service life, and reduces maintenance costs.
附图说明Description of drawings
图1为带防波浮筒的阵列式压电悬臂梁波能转换装置的整体结构立体图。Fig. 1 is a perspective view of the overall structure of an array piezoelectric cantilever wave energy conversion device with anti-wave buoys.
图2为带防波浮筒的阵列式压电悬臂梁波能转换装置中压电发电箱的立体图。Fig. 2 is a perspective view of a piezoelectric generator box in an array piezoelectric cantilever wave energy conversion device with anti-wave buoys.
图3为带防波浮筒的阵列式压电悬臂梁波能转换装置的内部结构示意图。Fig. 3 is a schematic diagram of the internal structure of the array piezoelectric cantilever wave energy conversion device with anti-wave buoys.
图4为带防波浮筒的阵列式压电悬臂梁波能转换装置的整体结构正视图。Fig. 4 is a front view of the overall structure of the array piezoelectric cantilever wave energy conversion device with anti-wave buoys.
图5为带防波浮筒的阵列式压电悬臂梁波能转换装置中压电悬臂梁的示意图。Fig. 5 is a schematic diagram of a piezoelectric cantilever in an array piezoelectric cantilever wave energy conversion device with anti-wave buoys.
具体实施方式detailed description
下面结合附图对本发明做进一步的描述：The present invention will be further described below in conjunction with accompanying drawing:
本发明涉及一种带防波浮筒的阵列式压电悬臂梁波能转换装置，如图1-5所示，装置包括防波浮筒1、固定支座体2和压电发电箱3，其中压电发电箱3由箱体3-1、盖板3-2、密封圈3-8、压电发电组件组成，其中压电发电组件由质量块3-3、悬臂梁3-4、压电体3-5、悬臂梁固定架3-6、压板3-7组成，且质量块3-3、悬臂梁3-4、压电体3-5构成压电悬臂梁。The present invention relates to an array type piezoelectric cantilever beam wave energy conversion device with anti-wave buoys, as shown in Figure 1-5, the device includes anti-wave buoys 1, fixed support body 2 and piezoelectric power generation box 3, wherein the pressure The electric generator box 3 is composed of a box body 3-1, a cover plate 3-2, a sealing ring 3-8, and a piezoelectric power generation assembly, wherein the piezoelectric power generation assembly is composed of a mass block 3-3, a cantilever beam 3-4, a piezoelectric body 3-5, the cantilever beam fixing frame 3-6, and the pressure plate 3-7 are composed, and the mass block 3-3, the cantilever beam 3-4, and the piezoelectric body 3-5 form the piezoelectric cantilever beam.
防波浮筒1为实心圆柱体，本实施例中防波浮筒1为长15米，半径4米的实心圆柱体，防波浮筒1的材料为铝合金，圆柱体表面涂有防锈漆，起到防腐蚀和警示的作用，而且当波浪打到防波浮筒1上时，由于浮筒结构自身的稳定特性，经过浮筒的波浪波幅得到很大程度的削减，起到了防波的作用。The anti-wave buoy 1 is a solid cylinder. In the present embodiment, the anti-wave buoy 1 is a solid cylinder with a length of 15 meters and a radius of 4 meters. The material of the anti-wave buoy 1 is aluminum alloy, and the surface of the cylinder is coated with antirust paint. It has the functions of anti-corrosion and warning, and when the waves hit the anti-wave buoy 1, due to the stability characteristics of the buoy structure itself, the wave amplitude passing through the buoy is greatly reduced, playing the role of anti-wave.
在防波浮筒1的侧面母线处有一个平面，在该平面上有固定支座体2，固定支座体2一面与防波浮筒1固定连接，另一面与压电发电箱3铰接连接。固定支座体2为薄板件，上面钻有六个螺栓孔，以及两个铰接孔，固定支座体2的一面通过螺栓与防波浮筒1固定连接，另一面与压电发电箱3通过耳板5与销轴4铰接连接，使压电发电箱3相对于防波浮筒1能够上下摆动而不移动。本实施例中的耳板5为“L”型零件，耳板5的一端加工有铰接孔，铰接孔端与固定支座体2通过销轴4连接，耳板5的无铰接孔的一端用螺栓固定在压电发电箱3中箱体3-1的侧面。There is a plane at the side busbar of the anti-wave buoy 1, on which there is a fixed support body 2, one side of the fixed support body 2 is fixedly connected with the anti-wave buoy 1, and the other side is hingedly connected with the piezoelectric generator box 3. The fixed support body 2 is a thin plate with six bolt holes and two hinged holes drilled on it. One side of the fixed support body 2 is fixedly connected with the anti-wave buoy 1 through bolts, and the other side is connected with the piezoelectric generator box 3 through the ears. The plate 5 is hingedly connected with the pin shaft 4, so that the piezoelectric generator box 3 can swing up and down relative to the anti-wave buoy 1 without moving. The ear plate 5 in this embodiment is an "L"-shaped part, and one end of the ear plate 5 is processed with a hinged hole, and the end of the hinged hole is connected with the fixed support body 2 through the pin shaft 4, and the end of the ear plate 5 without the hinged hole is used Bolts are fixed on the side of the box body 3-1 in the piezoelectric generator box 3.
压电发电箱3浮在海面与海浪一起运动，利用防波浮筒1和波浪之间的动能及势能差，使得压电发电箱3上下摆动，引起发电箱内部的压电悬臂梁的振动，压电悬臂梁随着压电发电箱3的上下摆动而振动，将海浪的波浪能转换为电能。The piezoelectric generator box 3 floats on the sea surface and moves together with the waves. Using the kinetic energy and potential energy difference between the anti-wave buoy 1 and the waves, the piezoelectric generator box 3 swings up and down, causing the piezoelectric cantilever beam inside the generator box to vibrate. The electric cantilever beam vibrates as the piezoelectric generator box 3 swings up and down, and converts the wave energy of the ocean waves into electrical energy.
压电发电箱3的箱体3-1为中空立方体结构，箱体3-1和盖板3-2之间安装有密封圈3-8，箱体3-1和盖板3-2之间采用焊接连接，盖板3-2是与箱体3-1结构相对应的薄板，盖板3-2的长和宽分别等于箱体3-1的长和宽，箱体3-1和盖板3-2的材料为铝，不仅减轻了装置整体的重量，并且也便于焊接。盖板3-2为长方形板件，内部有长方形凹槽，这样设计的原因是为了固定密封圈3-8和减轻装置重量。箱体3-1为中空长方体薄壁件，与盖板3-2中间安装密封圈3-8，并通过焊接方式让箱体3-1与盖板3-2固定在一起。The box body 3-1 of the piezoelectric generator box 3 is a hollow cubic structure, a sealing ring 3-8 is installed between the box body 3-1 and the cover plate 3-2, and a sealing ring 3-8 is installed between the box body 3-1 and the cover plate 3-2. Welded connection is adopted, and the cover plate 3-2 is a thin plate corresponding to the structure of the box body 3-1. The length and width of the cover plate 3-2 are respectively equal to the length and width of the box body 3-1, and the box body 3-1 and the cover The plate 3-2 is made of aluminum, which not only reduces the overall weight of the device, but also facilitates welding. The cover plate 3-2 is a rectangular plate with a rectangular groove inside. The reason for this design is to fix the sealing ring 3-8 and reduce the weight of the device. The box body 3-1 is a hollow cuboid thin-walled part, and a sealing ring 3-8 is installed between the cover plate 3-2, and the box body 3-1 and the cover plate 3-2 are fixed together by welding.
压电发电箱3中的质量块3-3和压电体3-5均和悬臂梁3-4固定连接，压电体3-5为长方形薄片，压电体3-5所用材料为压电陶瓷和聚偏氟乙烯活环氧树脂的两相复合材料，具有很好的柔韧性、加工性能和机械耦合系数，压电体3-5分别固定在悬臂梁3-4的上、下表面或其中一个表面上且远离固定支座体2，在压电体3-5弯曲变形的同时产生周期性的应力，因为压电效应在每一个压电体3-5的上下表面产生电荷，经过导线将产生的电荷导入储能元件或用电器，达到既防波又合理利用波浪能的效果。质量块3-3的形状为长方体、材料为铁，质量块3-3焊接在悬臂梁3-4上且所在位置靠近固定支座体2，质量块3-3、悬臂梁3-4和压电体3-5之间组成了压电悬臂梁，通过调整质量块3-3的大小和位置来改变压电悬臂梁的固有频率，质量块3-3和压电体3-5的宽度等于悬臂梁3-4的宽度，质量块3-3和压电体3-5的长度小于悬臂梁3-4的长度，每个悬臂梁3-4上的质量块3-3的大小、形状、质量相同，每个悬臂梁3-4上的压电体3-5的大小、形状、质量相同。The mass block 3-3 and the piezoelectric body 3-5 in the piezoelectric generator box 3 are fixedly connected to the cantilever beam 3-4, the piezoelectric body 3-5 is a rectangular sheet, and the material used for the piezoelectric body 3-5 is piezoelectric The two-phase composite material of ceramics and polyvinylidene fluoride or epoxy resin has good flexibility, processability and mechanical coupling coefficient. The piezoelectric body 3-5 is respectively fixed on the upper and lower surfaces of the cantilever beam 3-4 or On one of the surfaces and away from the fixed support body 2, periodic stress is generated while the piezoelectric body 3-5 is bent and deformed, because the piezoelectric effect generates charges on the upper and lower surfaces of each piezoelectric body 3-5, and passes through the wire The generated charge is introduced into energy storage elements or electrical appliances to achieve the effect of both preventing waves and rationally utilizing wave energy. The shape of the mass block 3-3 is cuboid, and the material is iron. The mass block 3-3 is welded on the cantilever beam 3-4 and its position is close to the fixed support body 2. The mass block 3-3, the cantilever beam 3-4 and the pressure A piezoelectric cantilever beam is formed between the electric bodies 3-5, and the natural frequency of the piezoelectric cantilever beam is changed by adjusting the size and position of the mass block 3-3. The width of the mass block 3-3 and the piezoelectric body 3-5 is equal to The width of the cantilever beam 3-4, the length of the mass block 3-3 and the piezoelectric body 3-5 are less than the length of the cantilever beam 3-4, the size, shape, The quality is the same, and the size, shape and quality of the piezoelectric bodies 3-5 on each cantilever beam 3-4 are the same.
压电发电箱3中的悬臂梁固定架3-6是铁材质，悬臂梁固定架3-6的一端通过螺栓固定连接在箱体3-1内壁上，另一端通过螺栓与压板3-7固定连接，悬臂梁固定架3-6和压板3-7的组合可以夹紧悬臂梁3-4未焊接质量块3-3的一端。压电悬臂梁的数量至少一个，压电悬臂梁的排列方式为线性阵列式分布，线性阵列分布的好处是通过引起压电悬臂梁之间的共振，不仅实现对多个频率波浪能的同时捕获，并且增加了压电悬臂梁之间的振动频率，提高了波浪能的利用率。The cantilever beam fixing frame 3-6 in the piezoelectric generator box 3 is made of iron, one end of the cantilever beam fixing frame 3-6 is fixedly connected to the inner wall of the box body 3-1 by bolts, and the other end is fixed to the pressure plate 3-7 by bolts Connection, the combination of the cantilever beam fixing frame 3-6 and the pressing plate 3-7 can clamp one end of the cantilever beam 3-4 which is not welded with the mass block 3-3. The number of piezoelectric cantilevers is at least one, and the arrangement of the piezoelectric cantilever beams is a linear array distribution. The advantage of the linear array distribution is that by causing resonance between the piezoelectric cantilever beams, not only can the wave energy of multiple frequencies be captured simultaneously , and increase the vibration frequency between the piezoelectric cantilever beams, and improve the utilization rate of wave energy.
本发明中，防波浮筒1漂浮在海面上，通过螺栓与固定支座板2连接，固定支座板2上有铰接孔，销轴4将其与压电发电箱3连接在一起，压电发电箱3内安装有压电发电组件，用于将波浪能转换为电能。其中，防波浮筒1为实心圆柱体，当波浪打到防波浮筒1上时，由于浮筒结构自身的稳定特性，经过浮筒的波浪波幅得到很大程度的削减，起到了防波的作用。而压电发电箱3浮在海面与海浪一起运动，利用防波浮筒1和波浪之间的动能及势能差，使得压电发电箱3上下摆动，引起发电箱内部的压电悬臂梁的振动。另外，压电悬臂梁的线性阵列排列方式，能够引起压电悬臂梁之间的共振。压电体3-5因为弯曲变形而产生周期性的应力，因压电效应在压电体3-5的上下表面产生电荷，经过导线将产生的电荷导入储能元件或用电器，达到既防波又合理利用波浪能的效果。In the present invention, the anti-wave buoy 1 floats on the sea surface and is connected to the fixed support plate 2 by bolts. A piezoelectric generating assembly is installed in the generating box 3 for converting wave energy into electrical energy. Among them, the anti-wave buoy 1 is a solid cylinder. When waves hit the anti-wave buoy 1, due to the stability of the buoy structure itself, the wave amplitude passing through the buoy is greatly reduced, which plays a role in anti-wave. The piezoelectric generator box 3 floats on the sea surface and moves together with the waves. Using the kinetic energy and potential energy difference between the anti-wave buoy 1 and the waves, the piezoelectric generator box 3 swings up and down, causing the piezoelectric cantilever beam inside the generator box to vibrate. In addition, the linear array arrangement of the piezoelectric cantilever beams can cause resonance between the piezoelectric cantilever beams. The piezoelectric body 3-5 produces periodic stress due to bending deformation, and charges are generated on the upper and lower surfaces of the piezoelectric body 3-5 due to the piezoelectric effect. Waves make reasonable use of wave energy.
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710501628.3ACN107448351B (en) | 2017-06-27 | 2017-06-27 | Array piezoelectric cantilever wave energy conversion device with anti-wave buoy |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710501628.3ACN107448351B (en) | 2017-06-27 | 2017-06-27 | Array piezoelectric cantilever wave energy conversion device with anti-wave buoy |
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| CN107448351Atrue CN107448351A (en) | 2017-12-08 |
| CN107448351B CN107448351B (en) | 2019-04-23 |
| Application Number | Title | Priority Date | Filing Date |
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| CN201710501628.3AActiveCN107448351B (en) | 2017-06-27 | 2017-06-27 | Array piezoelectric cantilever wave energy conversion device with anti-wave buoy |
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| CN110409367A (en)* | 2019-08-27 | 2019-11-05 | 天津大学 | Floating comb-shaped breakwater device and application that can utilize wave energy |
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| CN201781430U (en)* | 2010-09-16 | 2011-03-30 | 边义祥 | Aboard piezoelectric generating device |
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| CN105041558A (en)* | 2015-07-14 | 2015-11-11 | 山东科技大学 | Oscillating water column type wave power generating device based on piezoelectric effect |
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| US5814921A (en)* | 1995-03-13 | 1998-09-29 | Ocean Power Technologies, Inc. | Frequency multiplying piezoelectric generators |
| JP2011106434A (en)* | 2009-11-20 | 2011-06-02 | Hiroshima Univ | Ocean energy power generation device and storage device using the same |
| CN201781430U (en)* | 2010-09-16 | 2011-03-30 | 边义祥 | Aboard piezoelectric generating device |
| CN204392114U (en)* | 2015-01-19 | 2015-06-10 | 河海大学 | A kind of new-type wave Blast Furnace Top Gas Recovery Turbine Unit (TRT) based on piezoelectric element |
| WO2017007360A1 (en)* | 2015-07-06 | 2017-01-12 | Siemens Aktiengesellschaft | A technique for generating electric power from a rail in a railway track |
| CN105041558A (en)* | 2015-07-14 | 2015-11-11 | 山东科技大学 | Oscillating water column type wave power generating device based on piezoelectric effect |
| CN106100446A (en)* | 2016-07-29 | 2016-11-09 | 哈尔滨工业大学 | A kind of Wave power generation device based on nucleocapsid PVDF array |
| CN106640510A (en)* | 2016-12-06 | 2017-05-10 | 天津大学前沿技术研究院有限公司 | Breakwater wave power generation device with horizontal array form |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110409367A (en)* | 2019-08-27 | 2019-11-05 | 天津大学 | Floating comb-shaped breakwater device and application that can utilize wave energy |
| CN110409367B (en)* | 2019-08-27 | 2023-12-01 | 天津大学 | Floating comb breakwater device and application that can utilize wave energy |
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