CN102324871B - Piezoelectric type energy harvesting unit and application thereof - Google Patents

Piezoelectric type energy harvesting unit and application thereof Download PDF

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CN102324871B
CN102324871B CN 201110283546 CN201110283546A CN102324871B CN 102324871 B CN102324871 B CN 102324871B CN 201110283546 CN201110283546 CN 201110283546 CN 201110283546 A CN201110283546 A CN 201110283546A CN 102324871 B CN102324871 B CN 102324871B
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piezoelectric
material
plate
piezoelectric energy
energy harvesting
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CN102324871A (en
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罗豪甦
许春东
王东
任博
赵祥永
徐海清
林迪
王升
狄文宁
李晓兵
梁柱
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中国科学院上海硅酸盐研究所
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Abstract

本发明公开了一种压电型能量收集单元及其应用。 The present invention discloses a piezoelectric energy harvesting unit and its application. 所述的压电型能量收集单元是由压电振子安装在简支梁支撑结构中。 The piezoelectric energy harvesting unit is mounted on the simply supported beam supporting structure of a piezoelectric vibrator. 将本发明所述的压电型能量收集单元与负载电路串接可构成供电单元;在桥梁、大坝、楼房等建筑物体内,安装上述的供电单元,可以收集环境的振动能为监测建筑物和/或机动设备疲劳状态的无线传感器节点供电。 The present invention is a piezoelectric energy harvesting unit may be connected in series with a load circuit composed of the power supply unit; body building bridges, dams, buildings, etc., for mounting the power supply unit, it can be collected to monitor the vibration of the building environment and / or fatigue motorized device powered wireless sensor node. 将若干个本发明所述的压电型能量收集单元组合,可形成压电型能量收集模块;所述的压电型能量收集模块可以像普通地板一样铺设在室内、地铁站或人流密集的广场等处,将人体行走时的能量转换为电能;将所述的压电型能量收集模块直接铺设在公路、铁路或飞机场的混凝土下面,可以将路面的振动能转换为电能。 The piezoelectric energy harvesting unit combines the plurality of the invention may be formed piezoelectric energy harvesting module; said piezoelectric energy harvesting module may be the same as normal indoor flooring, crowded subway station or square etc., the energy converted into electrical energy when the human walking; the piezoelectric energy harvesting module is laid directly below the concrete road, railway or airport, you may be a road surface vibration energy into electrical energy.

Description

一种压电型能量收集单元及其应用 A piezoelectric energy harvesting unit and its application type

技术领域 FIELD

[0001] 本发明涉及一种可以将人体踩踏、车辆行驶、飞机起飞降落等机械运动产生的机械能转化为电能的技术,具体说,是涉及一种采用压电材料,利用压电材料的压电效应制作的可以将机械能收集,转化成电能的压电型能量收集单元及其应用,属于能源器件技术领域。 [0001] The present invention relates to a human body can be depressed, the vehicle is running, landing and other mechanical takeoff mechanical motion energy into electrical energy generated in the art, particularly, relates to a piezoelectric material, the piezoelectric material of piezoelectric effect of mechanical energy produced may be collected into electrical energy unit and the piezoelectric energy harvesting applications, devices belonging to the technical field of energy.

背景技术 Background technique

[0002] 收集机械振动的压电型能量收集器已被初步研究,目前主要有三种形式的振动型能量收集器件:静电式、电磁式和压电式。 [0002] piezoelectric vibration energy harvester machine have been collected preliminary study, three main forms of vibratory energy harvesting device: electrostatic, electromagnetic and piezoelectric. 静电式应用平板电容器原理,需要外接电源;电磁式采用电磁互感效应,通过线圈和磁铁的相互运动,将机械能转化为电能,这种方式机电转化效率较低,并且容易受到电磁干扰;压电式利用了压电材料的压电效应,通过压电材料受力变形产生电荷的方式将机械能转化为电能,体积小,能量密度高。 Electrostatic Application of the principles of a plate capacitor, external power supply; electromagnetic mutual induction effect of electromagnetic type, by mutual movement of the coil and the magnet, the mechanical energy into electrical energy, the electromechanical conversion efficiency is low in this way, and susceptible to electromagnetic interference; piezoelectric utilizing the piezoelectric effect of the piezoelectric material, the piezoelectric material generates an electric charge by the force deforms the mechanical energy into electrical energy, small volume, high energy density.

[0003] 压电材料是一种在外力作用下可以产生电荷的功能材料,它有压电单晶、压电陶瓷、有机压电材料、复合压电材料等多种类型。 [0003] Piezoelectric material is a functional material which can generate charges under the external force, it has a variety of types of piezoelectric single crystal, piezoelectric ceramic, an organic piezoelectric material, the composite piezoelectric material and the like. 压电材料必须极化后才能使用,极化后的压电材料表现出极性,当受外力作用时,压电材料表面就会有电荷产生,这就是压电效应;相反地,如果压电材料上下表面施加电场,它就会产生形变,这是逆压电效应。 After the polarized piezoelectric material to be used, the piezoelectric material after the polarization exhibit polarity, when subjected to an external force, the surface of the piezoelectric material will generate a charge, which is the piezoelectric effect; conversely, if the piezoelectric the upper and lower surfaces of the electric field applied to the material, it will be deformed, which is the inverse piezoelectric effect. 根据IEEE标准176(1978),压电材料的本构方程为: According to IEEE Standard 176 (1978), the constitutive equation of the piezoelectric material is:

=[0005] 公式中Si表不应变,Dm表不电位移,Tj为应力,En为电场强度;<为电场强度EnSO或恒定不变时的弹性柔顺系数,dfflJ为压电应变常数,'为应力L为O或恒定不变时的相对介电常数。 = [0005] Formula table is not strained Si, Dm table does electric displacement, Tj is the stress, the electric field strength En; <elastic compliance coefficient when the electric field intensity is constant or EnSO, dfflJ piezoelectric strain constant, 'is O is the relative permittivity or constant stress L.

[0006] 一定形状的压电材料被上电极层,极化后就成为可以普遍研究和使用的压电振子。 [0006] shaped piezoelectric material layer on the electrode, after the polarization has become universally used in research and the piezoelectric vibrator. 对于矩形板状压电振子,压电学中规定压电振子的极化方向为3方向,长度和宽度方向为I和2方向。 For a rectangular plate-shaped piezoelectric vibrator, a piezoelectric science predetermined direction of polarization of the piezoelectric vibrator to the third direction, the length and width direction and a second direction I. 压电振子有不同的振动模式,如{3-3}模式、{3-1}模式、弯曲模式等,其中{3-3}模式表外力作用在3方向,电荷也在3方向产生;{3-1}模式表外力作用在I方向,电荷在3方向产生。 The piezoelectric vibrator has a different vibration patterns, such as pattern {3-3} {3-1} mode, flexural mode, wherein the mode table {3-3} an external force in a third direction, the third direction is also generated charges; { table 3-1} external force is applied in the direction I mode, a charge is generated in the third direction. 根据压电振子的不同振动模式,人们已经设计制作了多种结构的压电振子,如单晶片结构、双晶片结构、叠层结构、铙钹结构、THUNDER结构,RAINBOW结构等 Depending on the vibration mode piezoelectric vibrator, it has been designed and manufactured a piezoelectric vibrator various structures, such as a single wafer structure, a bimorph structure, laminated structure, cymbals structure, the structure of the THUNDER, like RAINBOW structure

坐寸ο Sit inch ο

发明内容 SUMMARY

[0007] 本发明的目的在于提供一种利用压电振子在简支梁边界条件下的弯曲振动模式,将机械能转化为电能的压电型能量收集单元及其应用,为本领域增添一种新型能源收集转换器件。 [0007] The object of the present invention is to provide a piezoelectric vibrator in the bending vibration mode beam simply supported boundary conditions, the mechanical energy into electrical energy, piezoelectric energy harvesting unit and its application, adds a new art collecting energy conversion device. [0008] 为实现上述发明目的,本发明采取的技术方案如下: [0008] In order to achieve the above object, the present invention takes the following technical solutions:

[0009] 一种压电型能量收集单元,包括压电振子和简支梁支撑结构,压电振子安装在简支梁支撑结构中;所述简支梁支撑结构包括底板、垫板、限位板和顶板,顶板上方设有盖板,盖板下端固定连接有冲击块;在所述垫板、限位板和顶板的中心对称位置均设有安装压电振子所需的凹槽;垫板、限位板、顶板的两侧设有定位孔和弹簧孔;底板两侧设有定位孔和盲孔;盖板两侧设有盲孔,中部设有螺孔;盲孔和弹簧孔之间的空腔内设有弹簧。 [0009] A piezoelectric energy harvesting unit includes a piezoelectric vibrator simply supported and the support structure, a piezoelectric vibrator mounted on the beam simply supported beam support structure; the simply supported beam supporting structure comprises a base plate, plate, stopper and the top plate, the top plate is provided above the cover plate, the cover plate is fixedly connected with a lower impact block; in the center of the plate, the stopper plate and the top plate are provided with a groove symmetrical positions required for mounting the piezoelectric vibrator; pad , stopper plate, the top plate is provided on both sides of the positioning holes and the spring hole; blind holes and positioning holes provided on both sides of the bottom plate; blind hole is provided on both sides of the cover plate, provided with the central screw hole; between the blind hole and the spring hole the cavity is equipped with a spring.

[0010] 作为优选方案,上述压电型能量收集单元,其压电振子的结构为单晶片结构、双晶片结构、叠层结构、铙钹结构、THUNDER结构或RAINBOW结构。 [0010] As a preferred embodiment, the above-described piezoelectric energy harvesting unit, the structure of which the piezoelectric vibrator is a unimorph structure, a bimorph structure, laminated structure, the structure of cymbals, the THUNDER RAINBOW structure or structures.

[0011] 作为进一步优选方案,上述压电型能量收集单元,其压电振子为单晶片结构,由基底材料和压电材料组成,在基底材料的正面粘结有压电材料,且在基底材料和压电材料的电极层上分别焊接有一根导线。 [0011] As a further preferred embodiment, the above-described piezoelectric energy harvesting units, which is a unimorph piezoelectric vibrator structure, a base material and a piezoelectric material, a piezoelectric material is bonded on the front surface of the base material, the base material and and an upper electrode layer of piezoelectric material are welded to a wire.

[0012] 所述单晶片的形状可采用矩形、圆形或弯曲形。 [0012] The shape of the single crystal can be rectangular, circular or curved.

[0013] 作为进一步优选方案,所述压电振子为双晶片结构,由基底材料和压电材料组成,在基底材料的正反面分别粘结有压电材料,且上、下两压电材料之间以导线形成并联,一根导线焊接在基底材料上,另一根导线焊接在压电材料的电极层上。 [0013] As a further preferred embodiment, the piezoelectric vibrator of a bimorph structure, a base material and a piezoelectric material, a piezoelectric material, respectively positive and negative adhesive base material, and the upper and lower piezoelectric materials to form a parallel between the conductors, a wire bonding on the base material, on the other welding electrode wire layer of piezoelectric material.

[0014] 作为进一步优选方案,所述压电振子为双晶片结构,由基底材料和压电材料组成,在基底材料的正反面分别粘结有压电材料,且在上、下两压电材料的电极层上均焊接有一根导线以形成串联。 [0014] As a further preferred embodiment, the piezoelectric vibrator of a bimorph structure, a base material and a piezoelectric material, a piezoelectric material, respectively positive and negative adhesive base material, and the upper and lower two piezoelectric material upper electrode layer are welded to a conductor to form a series.

[0015] 所述基底材料可选择弹性好、可焊性好、抗疲劳性能突出的金属材料或选择弹性较好的有机材料制成,推荐采用铍铜、锰钢、不锈钢或聚乙烯制成。 The [0015] Alternatively the base material good elasticity, good weldability, fatigue resistance of a metal projection or a selected elastic material is preferably an organic material, it recommended beryllium copper, steel, stainless steel, or polyethylene.

[0016] 所述压电材料可采用压电陶瓷材料,如锆钛酸铅(PZT)等;压电单晶材料,如铌镁酸铅-钛酸铅(PMN-PT)等;无铅压电材料,如钛酸铋钠-钛酸钡(NBBT)等;或有机压电材料,如聚偏氟乙烯(PVDF)等制成。 [0016] The piezoelectric material can be a piezoelectric ceramic material such as lead zirconate titanate (PZT) and the like; a piezoelectric single crystal material, such as lead magnesium niobate - lead titanate (PMN-PT) and the like; Lead pressure dielectric material, such as bismuth sodium titanate - barium titanate (NBBT) and the like; or an organic piezoelectric material such as polyvinylidene fluoride (PVDF) or the like.

[0017] 作为优选方案,上述压电型能量收集单元,其冲击块的横截面形状可为正六边形、矩形、圆形或其他可以采用的形状,优选正六边形、矩形或圆形。 [0017] As a preferred embodiment, the above-described piezoelectric energy harvesting units, which impact block cross-sectional shape may be a regular hexagonal, rectangular, circular or other shapes may be employed, preferably a regular hexagonal, rectangular or circular.

[0018] 作为优选方案,上述压电型能量收集单元,其底板、垫板、限位板、顶板和盖板均由绝缘材料制成;冲击块采用弹性橡胶制成。 [0018] As a preferred embodiment, the above-described piezoelectric energy harvesting unit, which base plate, plate, stopper plate, the top plate and the cover plate are made of an insulating material; impact block made of elastic rubber.

[0019] 将本发明所述的压电型能量收集单元与负载电路串接可构成供电单元,所述负载电路是由整流电路、直流变压器和无线传感器节点串接而成。 [0019] The piezoelectric energy collecting unit according to the present invention, the load circuit may be connected in series constitute a power supply unit, said load circuit is connected in series a rectifier circuit, a DC-DC converter and from the wireless sensor nodes. 在桥梁、大坝、楼房等建筑物体内,安装上述的供电单元,可以收集环境的振动能为监测建筑物和/或机动设备疲劳状态的无线传感器节点供电,例如:在桥梁桥面的混凝土中掩埋若干个所述的供电单元,可收集桥梁的振动能为监测桥梁疲劳状态参数信息的无线传感器节点供电。 In vivo building bridges, dams, buildings, etc., for mounting the power supply unit, can be collected vibration environment power wireless sensor nodes to monitor a building and / or fatigue motorized equipment, for example: the concrete bridge deck burying a plurality of said power supply unit, the vibration energy can be collected to monitor the bridge power supply bridge wireless sensor node fatigue parameter information.

[0020] 将若干个本发明所述的压电型能量收集单元组合,可形成压电型能量收集模块。 [0020] The piezoelectric energy generator according to the present invention, a plurality of collection units in combination, may form a piezoelectric energy harvesting modules. 所述的压电型能量收集模块可以像普通地板一样安装在室内,将人体行走时的机械能转化为电能,为低能耗电子器件,如发光二极管、MP3、无线开关、无线传感器节点等低能耗电子器件供电;也可以铺设在地铁站、火车站、汽车站等人流密集的场所,收集人体行走时的机械能为验票机、指示灯等低能耗电子产品供电;还可以在公路、铁路、飞机场等处进行大规模铺设,收集汽车、火车、飞机行驶产生的机械能,为收费站、验票机指示灯等电子产品供电;还可以将多余的电能输入国家总电网。 The piezoelectric energy harvesting modules may be the same type as ordinary flooring installed indoors, the human walking when the mechanical energy into electrical energy for low power electronic devices, such as light emitting diodes, MP3, wireless switch, low-power wireless sensor nodes and other electronic the device supply; can also be laid in places crowded subway stations, train stations, bus stations, mechanical energy as ticket machines, lights and other low-power electronics power supply when the collecting of human walking; also in roads, railways, airports etc. for the large-scale laying, collecting cars, trains, airplanes traveling to produce mechanical energy, as toll stations, ticket machines powered lights and other electronic products; excess power can also enter the total national grid. 附图说明 BRIEF DESCRIPTION

[0021] 图1a为矩形单晶片结构的压电振子示意图; [0021] Figure 1a is a rectangular piezoelectric vibrator schematic configuration of a single wafer;

[0022] 图1b为弯曲形单晶片结构的压电振子示意图; [0022] Figure 1b is a piezoelectric vibrator curved schematic unimorph structure;

[0023] 图1c为圆形单晶片结构的压电振子示意图; [0023] Figure 1c is a circular unimorph piezoelectric vibrator schematic structure;

[0024] 图1d为串联双晶片结构的压电振子示意图; [0024] Figure 1d is a schematic view of a piezoelectric vibrator in series bimorph structure;

[0025] 图1e为并联双晶片结构的压电振子示意图; [0025] Figure 1e is a parallel bimorph piezoelectric vibrator schematic structure;

[0026] 图1f为THUNDER结构的压电振子示意图; [0026] FIG. 1f is a schematic view of a piezoelectric vibrator THUNDER structure;

[0027] 图2a为矩形底板的结构示意图; [0027] FIG 2a is a schematic view of the rectangular base;

[0028] 图2b为矩形垫板的结构示意图; [0028] FIG 2b is a schematic diagram of the structure of the rectangular plate;

[0029] 图2c为矩形限位板的结构示意图; [0029] FIG. 2c is a schematic diagram of the structure of the rectangular stopper plate;

[0030] 图2d为矩形顶板的结构示意图; [0030] Figure 2d is a schematic structural diagram of a rectangular top plate;

[0031] 图2e为矩形盖板的结构示意图; [0031] FIG. 2e is a schematic diagram of the structure of the rectangular plate;

[0032] 图3a为圆形底板的结构示意图; [0032] Figure 3a is a schematic view of a circular base plate;

[0033] 图3b为圆形垫板的结构示意图; [0033] FIG. 3b is a schematic view of the circular plate;

[0034] 图3c为圆形限位板的结构示意图; [0034] FIG. 3c is a schematic view of the structure of a circular stopper plate;

[0035] 图3d为圆形顶板的结构示意图; [0035] Figure 3d is a schematic view of the circular plate;

[0036] 图3e为圆形盖板的结构示意图; [0036] Figure 3e is a schematic view of a circular cover plate;

[0037] 图4a为横截面形状为六边形的冲击块结构示意图; [0037] FIG 4a is a schematic view of an impact block structure of hexagonal cross-sectional shape;

[0038] 图4b为横截面形状为矩形的冲击块结构示意图; [0038] FIG. 4b is a schematic view of a rectangular block structure of an impact cross-sectional shape;

[0039] 图4c为横截面形状为圆形的冲击块结构示意图; [0039] FIG. 4c is a schematic view of the impact block circular cross-sectional shape of the structure;

[0040] 图5为简支梁支撑结构的结构示意图; [0040] FIG. 5 is a schematic view of the simply supported beam supporting structure;

[0041] 图6a为本发明的压电型能量收集单元的结构示意图; Schematic structural unit [0041] FIG. 6a piezoelectric energy collector of the present invention;

[0042] 图6b为本发明的压电型能量收集单元的工作状态示意图; [0042] FIG. 6b piezoelectric energy collection state of the present invention means a schematic view;

[0043] 图7a为本发明的压电型能量收集单元为无线传感器节点供电的结构示意图; Unit is a structural diagram of a wireless sensor power supply node [0043] FIG. 7a piezoelectric energy collector of the present invention;

[0044] 图7b为本发明的压电型能量收集单元为传送桥梁疲劳状态参数信息的无线传感器节点供电时的示意图; Schematic view of the wireless sensor nodes of the bridge to transmit power fatigue parameter information [0044] FIG. 7b piezoelectric energy collector of the present invention;

[0045] 图8为实施例中所述的压电型能量收集模块的剖视图; [0045] FIG. 8 is a cross-sectional view of the embodiment of the piezoelectric energy harvesting module embodiment;

[0046] 图9为实施例中所述的压电型能量收集模块在室内等处的应用结构示意图; [0046] FIG. 9 is a piezoelectric energy application example of the schematic structure of a module in the collection chamber, etc. embodiment;

[0047] 图10为实施例中所述的压电型能量收集模块在公路、铁路和飞机场等处的应用结构示意图; Application of a schematic configuration module in roads, railways and airports, etc. of the [0047] FIG. 10 is a piezoelectric energy collector described in the embodiment;

[0048] 图1la为采用单晶片结构的压电振子制作成的压电型能量收集单元的结构示意图; [0048] FIG 1la made into structural diagram of a piezoelectric power collection unit is a piezoelectric vibrator of the unimorph structure;

[0049] 图1lb为采用双晶片结构的压电振子制作成的压电型能量收集单元的结构示意图; [0049] FIG 1lb made into structural diagram of a piezoelectric power collection unit is a piezoelectric vibrator of a bimorph structure;

[0050] 图1lc为采用弯曲结构的压电振子制作成的压电型能量收集单元的结构示意图。 [0050] FIG 1lc schematic structural units collected as a piezoelectric type piezoelectric vibrator energy made into a curved configuration. 具体实施方式 Detailed ways

[0051] 下面结合附图及其实施例对本发明作进一步详细说明。 [0051] Example embodiments of the present invention is described in further detail below in conjunction with the accompanying drawings and. [0052] 本发明提供的一种压电型能量收集单元,包括压电振子和简支梁支撑结构,压电振子安装在简支梁支撑结构中。 [0052] A piezoelectric type according to the present invention provides an energy collection unit includes a piezoelectric vibrator simply supported and the support structure, a piezoelectric vibrator mounted on the beam simply supported beam supporting structure.

[0053] 所述压电振子可采用矩形单晶片结构(见图1a所示)、弯曲形单晶片结构(见图1b所示)、圆形单晶片结构(见图1c所示)、图1d所示的串联双晶片结构、图1e所示的并联双晶片结构或图1f所示的THUNDER结构,还可以采用叠层结构、铙钹结构或RAINBOW结构等。 [0053] The piezoelectric oscillator can be rectangular single wafer structure (see FIG. 1a), single-wafer curved configuration (see FIG. 1b), circular single-wafer structure (see FIG. 1c), Fig. 1d FIG series bimorph structure shown in FIG. 1e parallel bimorph structure or the structure shown in FIG. 1f THUNDER, laminated structure, the structure of cymbals or the like may also be employed RAINBOW structure.

[0054] 所述简支梁支撑结构23由底板4、垫板7、限位板10、顶板11和带有冲击块19/21/22的盖板12通过叠加固定组成(见图5所示),各层板材的具体特征如下: [0054] The beam support structure 23 simply supported by the bottom plate 4, pad 7, the stopper plate 10, the top plate 11 and the cover plate with the impact block 12 by superimposing a fixed 19/21/22 (see Fig. 5 ), the specific features of each layer of the sheet as follows:

[0055] I)底板4的两侧设有固定其他板材的定位孔6和和盲孔5,定位孔6的数量和形状可根据具体应用调整(见图2a或图3a所示); [0055] I) 6 are provided on both sides of the bottom plate 4 and the blind bore and the other fixed plate positioning holes 5, number and shape of the positioning hole 6 may be adjusted according to the particular application (see FIG. 3a or 2a);

[0056] 2)垫板7的两侧设有定位孔6和弹簧孔9及安放压电振子所需的凹槽8,垫板的厚度可根据压电振子的最大弯曲量进行调整,凹槽8的长、宽尺寸比压电振子稍大(见图2b或图3b所示); [0056] 2 sides) positioning plate 7 is provided with holes 6 and 9 and the desired placement of the piezoelectric vibrator spring housing recess 8, the thickness of the plate can be adjusted according to the maximum amount of bending of the piezoelectric vibrator, the groove 8 length and width slightly larger than the piezoelectric vibrator (see FIG. 2b or FIG. 3b);

[0057] 3)限位板10的两侧设有定位孔6和弹簧孔9及安放压电振子所需的凹槽8,凹槽8的尺寸比压电振子略小(见图2c或图3c所示); Positioning holes provided on both sides of [0057] 3) 6 and the stopper plate 10 in the desired placement of the piezoelectric vibrator 9 and the spring hole grooves 8, 8 is slightly smaller than the size of the groove of the piezoelectric vibrator (see FIG. 2c or FIG. 3C);

[0058] 4)顶板11的两侧设有定位孔6和弹簧孔9及安放压电振子所需的凹槽8 (见图2d或图3d所示); [0058] 4) on both sides of the top plate 11 is provided with a positioning recess 9 and the required mounting holes 6 and the piezoelectric vibrator spring hole 8 (see FIG. 2d or 3d shown);

[0059] 5)盖板12两侧设有盲孔5,中部设有螺孔13 (见图2e或图3e所示); [0059] 5) on both sides of the cover plate 12 is provided with a blind hole 5, provided with the central screw hole 13 (see FIG. 2e or 3e shown);

[0060] 6)盖板12下端固定连接有冲击块,通过其上的定位孔20固定在盖板12的螺孔13上,冲击块的横截面形状可为正六边形、矩形、圆形等几何形状,如:冲击块19的横截面形状为正六边形(见图4a所示)、冲击块21的横截面形状为矩形(见图4b所示)、冲击块22的横截面形状为圆形(见图4c所示); [0060] 6) fixed to the cover plate 12 connected with the lower end of the impact block, a positioning hole through which the fixing screw hole 12 on the cover 1320, the cross-sectional shape of the impact block may be a regular hexagonal, rectangular, circular, etc. geometry, such as: cross-sectional shape of the impact block 19 is a regular hexagon (see FIG. 4a), the cross-sectional shape of the impact block 21 is rectangular (see FIG. 4b), the cross-sectional shape of the impact block 22 is circular shape (see FIG. 4c);

[0061] 且盲孔5和弹簧孔9之间的空腔内设有弹簧。 [0061] The features and the blind hole cavity 95 between the spring and the spring hole.

[0062] 本发明的压电型能量收集单元的制备工艺,包括以下步骤: [0062] The present invention is the piezoelectric energy collecting unit preparation process, comprising the steps of:

[0063] (I)压电材料I的选择:根据具体应用选择所需种类的压电材料,比如选择具有较好压电性能和价格相对廉价的压电陶瓷PZT,也可以选择压电单晶,如铌镁酸铅-钛酸铅(PMN-PT)等;有机压电材料,如聚偏氟乙烯(PVDF)等;或无铅压电材料,如钛酸铋钠-钛酸钡(NBBT)等;按尺寸切割,可以选择圆形、方形、六边形等截面形状; [0063] (I) of piezoelectric material I selection: select a particular application in accordance with the type of piezoelectric material such as piezoelectric properties is preferably selected to have a relatively inexpensive price, and the PZT piezoelectric ceramics, piezoelectric single crystal may be selected , such as lead magnesium niobate - lead titanate (PMN-PT) and the like; organic piezoelectric material such as polyvinylidene fluoride (PVDF) and the like; or a lead-free piezoelectric materials, such as bismuth sodium titanate - barium titanate (NBBT ) and the like; cut to size, may be selected cross-sectional shape of a circle, square, hexagonal and the like;

[0064] (2)基底材料2的制备:材质和尺寸可以根据具体需要选择弹性好,可焊性好和抗疲劳性能突出的金属材料,如铍铜、锰钢、不锈钢等,还可以选择弹性较好的有机材料作为基底材料;按尺寸切割,基底材料厚度的选择要保证单晶片的中性面在金属层内,否则会降低压电材料的能量密度; [0064] (2) Preparation of the base material 2: the specific materials and dimensions may be selected good elasticity, good weldability and projecting fatigue resistance of a metal material, such as beryllium copper, steel, stainless steel, according to the elastic can select preferably an organic material as a base material; cut to size, the substrate material selected to ensure that the neutral plane of the thickness of the wafer in a single metal layer, otherwise it will reduce the energy density of the piezoelectric material;

[0065] (3)在压电材料I与基底材料2之间涂抹一层粘结剂,再将样品放在两个金属平板之间,施加0.5MPa〜4.0MPa的压力,固定金属平板;然后将夹有样品的金属平板放入烘箱中于80°C固化4小时,自然冷却至室温后打开金属平板,取出样品即可得到压电材料与基底材料粘接完好的压电振子; [0065] (3) Apply a layer of adhesive between the piezoelectric material I with the base material 2, and then the sample is placed between two metal plates, the pressure applied 0.5MPa~4.0MPa fixed flat metal plate; and the sample metal plates interposed an oven cure at 80 ° C for 4 hours and allowed to cool to room temperature and opened flat metal plate, a sample was taken to obtain the adhesive base material and the piezoelectric material of the piezoelectric vibrator intact;

[0066] (4)在压电振子上焊接两根导线3,并采用三防漆进行绝缘包封; [0066] (4) welded to the piezoelectric vibrator two wires 3, and the use of anti-paint insulated enclosure;

[0067] (5)将底板、垫板、限位板、顶板、盖板和冲击块组装起来就形成了简支梁支撑结构23 ;对于不同形状的压电振子可以设计不同形状的简支梁支撑结构23,图2a至图2e是针对矩形压电振子设计的能量收集单元的底板4、垫板7、限位板10、顶板11和盖板12 ;图3a至图3e是针对圆形压电振子设计的能量收集单元的底板14、垫板15、限位板16、顶板17和盖板18 ; [0067] (5) the bottom plate, plate, stopper plate, the top plate, the cover plate and the impact block 23 are assembled to form a simply supported beam supporting structure; the piezoelectric vibrator of different shapes can be designed in different shapes simply supported beam the support structure 23, FIG. 2a to 2e is a floor unit for collecting the energy of the rectangular piezoelectric vibrator design 4, pad 7, the stopper plate 10, top plate 11 and the cover 12; Figures 3a to 3e is pressed against a circular backplane electrical power oscillator designed collecting unit 14, plate 15, the stopper plate 16, top plate 17 and the cover 18;

[0068] (6)将压电振子安装入简支梁支撑结构中的凹槽内,即得本发明所述的压电型能量收集单元24 ;图6a所示的是采用弯曲形单晶片制作的压电型能量收集单元24 ;图1la所示的是采用矩形单晶片制作的压电型能量收集单元;图1lb所示的是采用双晶片制作的压电型能量收集单元;图1lc所示的是采用弯曲结构的压电振子制作的压电型能量收集单 [0068] (6) The piezoelectric oscillator is mounted within the support structure simply supported beam groove, i.e., to obtain a piezoelectric energy generator of the present invention, the collecting unit 24; single wafer is produced using a curved shape shown in FIG. 6a the piezoelectric energy harvesting unit 24; energy generator is a piezoelectric wafer made of single rectangular collecting unit shown in FIG 1LA; 1lb is shown in FIG piezoelectric bimorph type making energy collecting unit; 1lc shown in FIG. the piezoelectric energy harvesting using a single piezoelectric vibrator bent structure made

J Li ο J Li ο

[0069] 25是压电型能量收集单元24在外力F作用下的工作状态。 [0069] 24 25 is the operating state piezoelectric energy harvesting unit external force F acting.

[0070] 所述基底材料2和压电材料I之间通过环氧树脂固化剂593与柔性环氧树脂LER-0350按重量比为1: 5配制的粘结剂粘结固定。 [0070] The base material 2 and the piezoelectric material between the ratio of the epoxy resin curing agent I 593 and the flexible epoxy resin LER-0350 by weight of 1: 5 fixed formulated adhesive bonding.

[0071] 所述基底材料2可采用铍铜、锰钢、不锈钢、玻璃钢或高弹性聚乙烯制成;所述压电材料I可采用压电陶瓷或压电单晶或无铅压电材料或有机压电材料;所述底板、垫板、限位板、顶板和盖板推荐采用胶合板;所述冲击块推荐采用硬度为80度的丁腈橡胶制作。 [0071] The base material 2 can be beryllium copper, steel, stainless steel, fiberglass or high elasticity polyethylene; I the piezoelectric material can be a piezoelectric ceramic or a piezoelectric single crystal or a lead-free piezoelectric material or organic piezoelectric material; the bottom panel, plate, stopper plate, top plate and plywood cover recommended; recommended the impact block made of nitrile rubber hardness of 80 degrees.

[0072] 本发明所述的压电能量收集单元有多种用途: [0072] The piezoelectric energy collecting unit according to the present invention has many uses:

[0073] I)无线传感网方面的应用:可以收集环境的振动能为监测建筑物和/或机动设备疲劳状态的无线传感器节点供电。 [0073] I) WSN applications areas: the environment can be collected vibration power wireless sensor nodes to monitor a building and / or motorized devices fatigue. 将本发明的压电型能量收集单元24与负载电路26连接构成供电单元,所述负载电路26是由整流电路、直流变压器和无线传感器节点串接而成(见图7a所示);在桥梁桥面的混凝土27中掩埋多个上述供电单元(见图7b所示),当车辆驶过时,压电型能量收集单元受压形变就会产生电能,产生的电能经过全桥整流电路和变压器,就可以为传送桥梁疲劳状态参数信息的无线传感器节点供电。 26 is connected to the piezoelectric energy harvesting unit 24 according to the present invention the power supply unit and the load circuit, the load circuit 26 is connected in series a rectifier circuit, a DC-DC converter and from the wireless sensor nodes (see FIG. 7a); Bridge 27 buried in the concrete deck a plurality of the power supply units (see FIG. 7b), when the vehicle travels, the piezoelectric energy harvesting unit compression deformation will generate electrical energy generated through the full bridge rectifier circuit and a transformer, wireless sensor nodes that can transmit power bridges fatigue parameter information.

[0074] 2)室内、公路、铁路、飞机场、地铁站等处的应用:将本发明所述的压电型能量收集单元按图8所示进行组装,就可以组成能进行大面积铺设的压电型能量收集模块28,图中只画出了八个矩形压电型能量收集单元组成的模块,但是实际中并不限于这一数量和形状;根据实际应用,能量收集单元之间可以采用串联或并联连接,也可以独立供电;①室内、地铁站和人流密集广场等处的应用:将压电型能量收集模块28象普通地板一样铺设在室内、地铁站和人流密集的广场等处的地面下,收集人体行走时的能量,如图9所示:在所述地面的沙土层31上留出铺设压电型能量收集模块28的凹槽,铺设完成后在能量收集模块上方覆盖一层防护材料29,与普通地板30平齐。 Application [0074] 2) interior, roads, railways, airports, subway stations, etc. of: a piezoelectric energy collecting unit according to the present invention assembled as shown in Figure 8, the composition can be capable of laying large area the piezoelectric energy harvesting module 28, shown herein as eight rectangular piezoelectric energy harvesting module units, but in practice this is not limited to the number and shape; according to the practical application between the energy collecting unit may be employed in series or in parallel, it may be independently powered; ① indoor applications, subway stations, etc., and the crowded squares: the piezoelectric energy harvesting module 28 is the same as ordinary flooring is laid indoors, crowded subway station and a square, etc. the ground, the energy collected human walking, 9: laying aside the piezoelectric energy harvesting module 28 in the recess on the sand ground layer 31, after the completion of the laying of covering the energy collected in a layer above the module protective materials 29, 30 is flush with the ordinary floor. 输出的电能经全波整流电桥直接带动LED发光,也可以储存起来供以后使用在公路、铁路和飞机场等处的应用:将压电型能量收集模块28直接铺设在混凝土27下面(如图10所示),当车辆、火车、飞机驶过时就可以带动压电型能量收集模块工作,收集路面的振动能;经过全波整流桥整流可以将收集到的电能直接利用,也可以将电能储存起来以备后用。 Power output of the full-wave rectifier bridge directly drive LED light, may be stored for later use in the application of roads, railways and airports, etc. of: a piezoelectric energy harvesting module 28 is laid directly below the concrete 27 (FIG. 10), when the vehicle, train, aircraft passing can be driven by a piezoelectric energy harvesting module works, road vibration can be collected; after full-wave rectification bridge rectifier may be collected directly into electric energy, electric energy storage may be after it for future use.

[0075] 实施例1 [0075] Example 1

[0076] 矩形单晶片的制作:选择长度X宽度X厚度为20mmX8mmX0.3mm的压电单晶材料铌镁酸铅-钛酸铅(PMN-0.29PT)和长度X宽度X厚度为38mmX IOmmX0.5mm的铍铜片,压电单晶材料铌镁酸铅-钛酸铅(PMN-0.29PT)沿厚度方向极化;采用环氧树脂固化剂593与柔性环氧树脂LER-0350按重量比为1: 5配制的粘结剂进行铍铜片和压电单晶PMN-PT的粘接;取两块长度X宽度X厚度为150mmX IOOmmX 6mm四角带定位圆孔的平行金属板,样品置于两金属板之间,在金属板中心对称处施加0.5MPa的压力,将螺钉插入金属板上的定位圆孔内进行固定;固定好的金属板放入烘箱中,于60°C固化5小时,自然冷却至室温后,拧开螺钉取出粘接牢固的压电单晶片样品;分别在压电单晶片的压电单晶和铍铜片上焊接导线,导线以Φ0.5mm的绝缘导线为宜,然后将焊接引线的压电单晶片浸入三防漆中I〜3分钟,取出放入烘箱中于30°C [0076] Production of rectangular single-crystal wafer: selecting length X width X thickness of lead magnesium niobate piezoelectric single crystal material in 20mmX8mmX0.3mm - lead titanate (PMN-0.29PT) and a length X width X thickness 38mmX IOmmX0.5mm beryllium copper, piezoelectric single crystal material is lead magnesium niobate - lead titanate (PMN-0.29PT) polarized in the thickness direction; 593 epoxy and flexible epoxy curing agent LER-0350 weight ratio of 1 : 5 formulated adhesive for bonding beryllium copper and the piezoelectric single crystal PMN-PT; take two length X width X thickness 150mmX IOOmmX 6mm parallel metal plates with the four corners of the positioning round hole, two samples were placed in metal between the plates, pressure is applied at 0.5MPa at the symmetric center of the metal plate, the screws are inserted into the positioning round hole of the metal plate is fixed; good fixing metal plate placed in an oven, cured at 60 ° C 5 h, allowed to cool to room temperature, remove the screw firmly adhered taken unimorph sample; solder wire on each piezoelectric single crystal and piezoelectric unimorph beryllium copper, lead wires are preferably insulated Φ0.5mm then welded lead unimorph dipped three paint in I~3 minutes, taken out into an oven at 30 ° C 化30分钟,即形成绝缘包封的矩形单晶片。 30 minutes, i.e., formation of an insulating encapsulating rectangular single wafer.

[0077] 简支梁支撑结构的制作:选取长度,宽度分别为80mm, 40mm,厚度分别为6mm, [0077] Production of the support structure simply supported beam: selecting length and width are 80mm, 40mm, thicknesses of 6mm,

0.5mm, 1.0mm, 3.0mm, 6.0mm的胶木板,依次作为图2a至图2e所示的底板,垫板,限位板,顶板和盖板,并在垫板,限位板,顶板的中心对称位置分别加工出长度X宽度X厚度为34mmX 1 2mmX 0.5mm, 40mmX 12mmX 1.0mm, 34mmX 1 2mmX 3.0mm 的凹槽8 ;在底板,垫板,限位板,顶板的四角中心对称位置加工出Φ3.0mm的定位孔6,在两端中心对称位置处加工出Φ 10.0mm的弹簧放置孔9 ;在盖板的中心对称位置处加工出两个相距3.0mm的Φ2.0mm螺孔13 ;冲击块采用硬度为80度的丁腈橡胶,形状选择尺寸为5.7ΧΦ8.0mm的圆柱体,弹簧选用弹簧丝为Φ0.5,外形尺寸为12X Φ9.0mm的圆柱形弹簧;按图5所示将各部件组装起来即可。 0.5mm, 1.0mm, 3.0mm, 6.0mm in bakelite, successively as the bottom plate, plate, stopper plate, the top plate and the cover plate Figures 2a to 2e is shown, and the pad, the stopper plate, the top plate central symmetrical positions are processed length X width X thickness 34mmX 1 2mmX 0.5mm, 40mmX 12mmX 1.0mm, 34mmX 1 2mmX 3.0mm groove 8; symmetrical position of the processing in the base plate, plate, stopper plate, four corners of the center of the top plate Φ3.0mm the positioning holes 6, at a position symmetrical across the central machined Φ 10.0mm spring accommodating hole 9; 3.0mm apart the two machined Φ2.0mm screw 13 at symmetrical positions with the center of the cap plate; impact block a hardness of 80 degrees nitrile rubber, the shape of a cylinder 5.7ΧΦ8.0mm select the size of the spring of the spring wire selection Φ0.5, 12X Φ9.0mm dimensions of a cylindrical spring; shown in Figure 5 the various components can be assembled.

[0078] 压电型能量收集单元的制作:将单晶片按图6a所示装入简支梁支撑结构中,将装有冲击块的盖板装入相应的卡槽内,即制作完成压电型能量收集单元。 [0078] Production of piezoelectric energy harvesting unit: a single wafer as shown in Figure 6a loaded simply supported beam supporting structure, the cover with the impact block is loaded within a corresponding slot, i.e., the piezoelectric finished type energy collection unit.

[0079] 所制得的压电型能量收集单元在2Hz的力学激励下可以产生3mW的电学输出。 [0079] The piezoelectric energy harvesting unit may be prepared to generate an electrical output 3mW at 2Hz mechanical excitation.

[0080] 实施例2 [0080] Example 2

[0081] 弯曲形单晶片的制作:选择长度X宽度X厚度为70mmX 15mmX0.5mm的压电陶瓷PZT材料和长度X宽度X厚度为78mmX18mmX0.5mm,拱高为1.5mm的弯曲铍铜片,压电陶瓷片沿厚度方向极化;采用环氧树脂固化剂593与柔性环氧树脂LER-0350按重量比为I: 5配制的粘结剂进行铍铜片和压电陶瓷片PZT的粘接;取两块长度X宽度X厚度为230mmX 170mmX6mm四角带定位圆孔的平行金属板,样品置于两金属板之间,在金属板中心对称处施加2.0MPa的压力,然后将螺钉插入金属板上的圆孔内进行固定;将固定好的金属板放入烘箱中,于80°C固化4小时,自然冷却至室温后,拧开螺钉取出粘接牢固的弯曲形压电单晶片样品;分别在压电单晶片的陶瓷片和铍铜片上焊接导线,导线以Φ0.5_的绝缘导线为宜,然后将焊接导线的单晶片浸入三防漆中I〜3分钟,取出放入烘箱中于30°C固化30分钟,即形成绝缘包封的拱 [0081] Production of the single-wafer curved: length X width X thickness selection of a PZT piezoelectric ceramic material and 70mmX 15mmX0.5mm length X width X thickness 78mmX18mmX0.5mm, a curved arch height of 1.5mm copper beryllium, pressure ceramics polarized in the thickness direction of the sheet; epoxy and flexible epoxy curing agent 593 LER-0350 weight ratio of I: 5 formulated adhesive for bonding beryllium copper and the PZT piezoelectric ceramics; take two length X width X thickness 230mmX 170mmX6mm corners with circular holes positioned parallel metal plates, the sample is placed between two metal plates, applying a pressure of 2.0MPa at the symmetrical center of the metal plate, and then inserting the screw into a metal plate fixing the circular hole; good fixing metal plate placed in an oven cured for 4 hours at 80 ° C, allowed to cool to room temperature, remove the screw firmly adhered taken curved unimorph sample; pressure, respectively power-ceramic sheet of single crystal beryllium copper and solder wire, the wires are preferably insulated wire Φ0.5_, then a single wafer bonding wire was immersed in anti-paint I~3 minutes, remove an oven at 30 ° C cured 30 minutes, i.e., formation of an insulating encapsulating arch 单晶片。 Single wafer.

[0082] 简支梁支撑结构的制作:选取长度,宽度分别为120mm,40mm,厚度分别为6mm, [0082] Production of the support structure simply supported beam: selecting length and width are 120mm, 40mm, thicknesses of 6mm,

1.0mm, 3.0mm, 6.0mm, 6.0mm的胶木板,依次作为图2a至图2e所示的底板,垫板,限位板,顶板和盖板,按图2所示分别在垫板,限位板,顶板的中心对称位置加工出长度X宽度X厚度为74mmX 20mmX 1.0mm' 80mmX 20mmX 3.0mm' 74mmX 20mmX6.0mm 的凹槽8 ;在底板,垫板,限位板,顶板的四角中心对称位置加工出Φ3.0mm的定位孔6,在两端中心对称位置处加工出Φ10.0mm的弹簧放置孔9 ;在盖板的中心对称位置处加工出两个相距3.0mm的Φ2.0mm螺孔13 ;冲击块采用硬度为80度的丁腈橡胶,形状选择尺寸为8X Φ8.0mm的圆柱体,弹簧选用弹簧丝为Φ0.5,外形尺寸为12X Φ9.0mm的圆柱形弹簧;按图5所示将各部件组装起来即可。 1.0mm, 3.0mm, 6.0mm, 6.0mm in bakelite, successively as the bottom plate, plate, stopper plate, the top plate and the cover plate shown in Figures 2a to 2e, the press pad shown in FIG. 2, respectively, limit positioning plate, the center of the top plate machined symmetrically length X width X thickness 74mmX 20mmX 1.0mm '80mmX 20mmX 3.0mm' 74mmX 20mmX6.0mm groove 8; corners symmetry center panel, plate, stopper plate, the top plate the position of the processing of the positioning hole Φ3.0mm 6, at positions symmetrical processed Φ10.0mm spring 9 is placed at both ends of the center hole; 3.0mm apart of two machined Φ2.0mm holes at symmetrical positions at the center of the cover plate 13; impact block a hardness of 80 degrees nitrile rubber, the shape of a cylinder 8X Φ8.0mm select the size of the spring of the spring wire selection Φ0.5, 12X Φ9.0mm dimensions of a cylindrical spring; in Figure 5 the respective components shown can be assembled.

[0083] 压电型能量收集单元的制作:将弯曲形单晶片按图6a所示装入简支梁支撑结构中,将装有冲击块的盖板装入相应的卡槽内,即制作完成压电型能量收集单元。 [0083] Production of piezoelectric energy harvesting unit: a single wafer according to the curved shape shown in Figure 6a loaded simply supported beam supporting structure, the cover plate with the impact block loaded into the appropriate slot, i.e., finished The piezoelectric energy harvesting unit. [0084] 所制得的压电型能量收集单元在2Hz的力学激励下可以产生7mW的电学输出。 [0084] The piezoelectric energy harvesting unit may be prepared to generate an electrical output at 7mW 2Hz mechanical excitation.

[0085] 实施例3 [0085] Example 3

[0086] 圆形单晶片的制作:选择厚度X直径为0.5mmX Φ 35mm的压电陶瓷PZT和厚度X直径为0.5πιπιΧΦ45πιπι的铍铜片,压电陶瓷沿厚度方向极化;采用环氧树脂固化剂593与柔性环氧树脂LER-0350按重量比为1: 5配制的粘结剂进行铍铜片和压电陶瓷片PZT的粘接;取两块长度X宽度X厚度为200mmX200mmX6mm四角带定位圆孔的平行金属板,样品置于两金属板之间,在金属板上施加2.0MPa的压力,然后将螺钉插入金属板上的定位圆孔内进行固定;将固定好的金属板放入烘箱中,于80°C固化4小时,自然冷却至室温后,拧开螺钉取出粘接牢固的压电单晶片样品;分别在压电单晶片的陶瓷片和铍铜片上焊接导线,导线以Φ0.5_的绝缘导线为宜,然后将焊接导线的单晶片浸入三防漆中I〜3分钟,取出放入烘箱中于30°C固化30分钟;即形成绝缘包封的圆形单晶片。 Production [0086] circular unimorph: selecting the thickness X 0.5mmX Φ in diameter and thickness of the piezoelectric ceramic PZT 35mm diameter X of beryllium copper 0.5πιπιΧΦ45πιπι piezoelectric ceramics polarized in the thickness direction; a cured epoxy resin agent 593 with a flexible epoxy LER-0350 weight ratio of 1: 5 formulated adhesive for bonding beryllium copper and the PZT piezoelectric ceramics; take two length X width X thickness 200mmX200mmX6mm tape positioning round corners hole parallel metal plates, the sample is placed between two metal plates, 2.0MPa pressure exerted on the metal plate, and then inserting a screw into the positioning round hole of the metal plate is fixed; good fixing metal plate placed in an oven after four hours of curing at 80 ° C, cooled to room temperature, remove the screw firmly adhered taken unimorph sample; solder wire respectively on the ceramic piezoelectric unimorph and beryllium copper, lead to Φ0.5 _ insulated wire is appropriate, then a single wafer bonding wire was immersed in anti-paint I~3 minutes, remove oven cure at 30 ° C 30 min; i.e., form a circular wafer insulated single encapsulated.

[0087] 简支梁支撑结构的制作:选取直径为Φ70mm,厚度分别为6mm, 1.0mm, 3.0mm, [0087] Production of the support structure simply supported beam: Select diameter Φ70mm, thicknesses of 6mm, 1.0mm, 3.0mm,

6.0mm,6.0mm的胶木板,依次作为图3a至图3e所示的底板,垫板,限位板,顶板和盖板,分别在垫板,限位板,顶板的中心对称位置加工出厚度X直径为Φ40ιήπιΧ1.0πιπι,Φ46mmX 3.0mm, Φ40mmX6.0mm的凹槽8 ;在底板,垫板,限位板,顶板的中心对称位置加工出6个Φ3.0mm的定位孔6和Φ 10.0mm的弹簧放置孔9 ;在盖板的中心对称位置加工出两个相距3.0mm的Φ2.0mm螺孔13 ;冲击块采用硬度为80度的丁腈橡胶,形状选择尺寸为8X Φ8.0mm的圆柱体,弹簧选用弹簧丝为Φ0.5,外形尺寸为12X Φ9.0mm的圆柱形弹簧;按图5所示将各部件组装起来即可。 6.0mm, 6.0mm in bakelite, successively as the bottom plate, plate, stopper plate, the top plate and the cover shown in Figures 3a to 3e, respectively, at the center of plate thickness of the machining, the stopper plate, the top plate symmetrical positions X diameter Φ40ιήπιΧ1.0πιπι, Φ46mmX 3.0mm, Φ40mmX6.0mm groove 8; symmetrical center panel, plate, stopper plate, a top plate 6 Φ3.0mm position of the processing of the positioning holes 6 and the Φ 10.0mm spring storage hole 9; in the center of the cover plate machined two symmetrical positions spaced 3.0mm holes 13 of Φ2.0mm; impact cylinder block adoption hardness of nitrile rubber of 80 degrees, the shape of the selected size 8X Φ8.0mm , the choice of the spring wire of the spring Φ0.5, external dimensions of the cylindrical spring 12X Φ9.0mm; shown in Figure 5 the parts can be assembled together.

[0088] 压电型能量收集单元的制作:将圆形单晶片按图6a所示装入简支梁支撑结构中,将装有冲击块的盖板装入相应的卡槽内,即制作完成压电型能量收集单元。 [0088] Production of piezoelectric energy harvesting unit: circular single wafer as shown in Figure 6a loaded simply supported beam supporting structure, the cover plate with the impact block loaded into the appropriate slot, i.e., finished The piezoelectric energy harvesting unit.

[0089] 所制得的压电型能量收集单元在2Hz的力学激励下可以产生IOmW的电学输出。 [0089] The obtained piezoelectric energy collecting unit may generate an electrical output IOmW in mechanical excitation of 2Hz.

[0090] 本专利文件中所述的叠层结构可参见美国专利文献US5245734中的描述;所述的铙钹结构可参见Journal of Electroceramics (《电子陶瓷学报》),2005 (15),第27-34页中的描述;所述的THUNDER结构可参见Sensors and Actuators A(《传感器与执行机构,A辑:物理传感器》),1998(69),第33-38页中的描述;所述的RAINBOW结构可参见Am.Ceram.Soc.Bull (《美国陶瓷学会公报》),1994(73),第93-96页中的描述。 [0090] The present patent document may refer to the laminated structure described in U.S. Patent Document US5245734; structure can be found in the cymbal Journal of Electroceramics ( "Electronic Ceramics Journal"), 2005 (15), 27-34 page description; THUNDER structure according to see sensors and actuators a ( "sensors and actuators, a Series: physical sensor"), 1998 (69), as described on page 33-38; the structure RAINBOW see Am.Ceram.Soc.Bull ( "American ceramic Society Bulletin"), 1994 (73), pp. 93-96 described.

[0091] 最后应当说明的是:以上实施例只用于对本发明进行进一步说明,不能理解为对本发明保护范围的限制,本领域的技术人员根据本发明的上述内容作出的一些非本质的改进和调整均属于本发明的保护范围。 [0091] Finally, it should be noted that: the above embodiments only for the present invention is further illustrated not to be construed as limiting the scope of the present invention, some non-essential improvements and those skilled in the art made in accordance with the foregoing the present invention adjustments will fall within the scope of the present invention.

Claims (16)

1.一种压电型能量收集单元,其特征在于:包括压电振子和简支梁支撑结构,压电振子安装在简支梁支撑结构中;所述简支梁支撑结构包括底板、垫板、限位板和顶板,顶板上方设有盖板,盖板下端固定连接有冲击块;在所述垫板、限位板和顶板的中心对称位置均设有安装压电振子所需的凹槽;垫板、限位板、顶板的两侧设有定位孔和弹簧孔;底板两侧设有定位孔和盲孔;盖板两侧设有盲孔,中部设有螺孔;盲孔和弹簧孔之间的空腔内设有弹簧。 A piezoelectric energy harvesting unit comprising: a piezoelectric vibrator simply supported and the support structure, a piezoelectric vibrator mounted on the beam simply supported beam support structure; the simply supported beam supporting structure comprises a base plate, plate , the stopper plate and the top plate, the top plate is provided above the cover plate, the cover plate is fixedly connected with a lower impact block; in the center of the plate, the stopper plate and the top plate are provided with a groove symmetrical positions required for mounting the piezoelectric vibrator ; both sides of the plate, the stopper plate, the top plate is provided with positioning holes and the spring hole; blind holes and positioning holes provided on both sides of the bottom plate; blind hole is provided on both sides of the cover plate, provided with the central screw; blind hole and a spring site cavity between the spring hole.
2.根据权利要求1所述的压电型能量收集单元,其特征在于:所述压电振子为单晶片结构、双晶片结构、叠层结构、铙钹结构、THUNDER结构或RAINBOW结构。 2. the piezoelectric energy collecting unit according to claim 1, wherein: said piezoelectric oscillator is a single chip structure, a bimorph structure, laminated structure, the structure of cymbals, the THUNDER RAINBOW structure or structures.
3.根据权利要求2所述的压电型能量收集单元,其特征在于:所述压电振子为单晶片结构,由基底材料和压电材料组成,在基底材料的正面粘结有压电材料,且在基底材料和压电材料上分别焊接有一根导线。 The piezoelectric energy generator according to claim 2, wherein said collecting means, characterized in that: said piezoelectric oscillator is a single wafer structure, the substrate material and a piezoelectric material, a piezoelectric material is bonded on the front surface of the base material , respectively, and a wire welded on the base material and the piezoelectric material.
4.根据权利要求3所述的压电型能量收集单元,其特征在于:所述单晶片的形状为矩形、圆形或弯曲形。 The piezoelectric energy generator according to claim 3, wherein said collecting means, characterized in that: said single wafer shape is rectangular, round or curvilinear.
5.根据权利要求2所述的压电型能量收集单元,其特征在于:所述压电振子为双晶片结构,由基底材料和压电材料组成,在基底材料的正反面分别粘结有压电材料,且上、下两压电材料之间以导线形成并联,一根导线焊接在基底材料上,另一根导线焊接在压电材料的电极层上。 The piezoelectric energy harvesting unit according to claim 2, wherein: said piezoelectric oscillator is a bimorph structure, the base material and the piezoelectric material, there are positive and negative pressure in the adhesive base material dielectric material, and between the upper and the lower two piezoelectric material to form a parallel wire, on the base material, on the other bonding wire is welded to a lead electrode layer of piezoelectric material.
6.根据权利要求2所述的压电型能量收集单元,其特征在于:所述压电振子为双晶片结构,由基底材料和压电材料组成,在基底材料的正反面分别粘结有压电材料,且在上、下两压电材料的电极层上均焊接有一根导线以形成串联。 6. The piezoelectric energy harvesting unit according to claim 2, wherein: said piezoelectric oscillator is a bimorph structure, the base material and the piezoelectric material, there are positive and negative pressure in the adhesive base material dielectric material, and on the upper electrode layer under the two piezoelectric material are welded to a conductor to form a series.
7.根据权利要求3、5或6所述的压电型能量收集单元,其特征在于:所述基底材料采用铍铜、锰钢、不锈钢或聚乙烯制成。 7. The piezoelectric energy collecting unit of claim 5 or claim 6, wherein: said substrate material is beryllium copper, steel, stainless steel, or polyethylene.
8.根据权利要求3、5或6所述的压电型能量收集单元,其特征在于:所述压电材料采用压电陶瓷材料、压电单晶材料、无铅压电材料或有机压电材料制成。 8. The piezoelectric energy collecting unit of claim 5 or claim 6, wherein: said piezoelectric material is a piezoelectric ceramic material, a piezoelectric single crystal material, a lead-free piezoelectric material or an organic piezoelectric made of a material.
9.根据权利要求1所述的压电型能量收集单元,其特征在于:所述冲击块的横截面形状为正六边形、矩形或圆形。 The piezoelectric energy generator according to claim 1, wherein said collecting unit, wherein: the cross-sectional shape of the impact block is a regular hexagon, rectangular or circular.
10.根据权利要求1所述的压电型能量收集单元,其特征在于:所述底板、垫板、限位板、顶板和盖板均由绝缘材料制成;所述冲击块采用弹性橡胶制成。 10. The piezoelectric energy harvesting unit according to claim 1, wherein: said base plate, plate, stopper plate, the top plate and the cover plate are made of an insulating material; the impact elastic rubber block to make.
11.一种权利要求1所述的压电型能量收集单元的应用,其特征在于:由所述的压电型能量收集单元与负载电路串接构成供电单元,所述负载电路由整流电路、直流变压器和无线传感器节点串接而成。 The piezoelectric energy generator according to claim 1 11. A collection application unit, wherein: the collection unit and the load circuit of a piezoelectric energy generator according to the power supply unit in series configuration, the load circuit by the rectifier circuit, DC-DC converter and the concatenation of wireless sensor nodes.
12.根据权利要求11所述的压电型能量收集单元的应用,其特征在于:所述的供电单元用于收集环境的振动能为监测建筑物和/或机动设备疲劳状态的无线传感器节点供电。 12. The piezoelectric energy generator according to claim 11 to collect the application unit, wherein: said power supply unit for collecting environmental vibration energy to monitor buildings and / or mechanical equipment in fatigue powered wireless sensor node .
13.—种权利要求1所述的压电型能量收集单元的应用,其特征在于:由若干个所述的压电型能量收集单元组合形成压电型能量收集模块。 The piezoelectric energy generator according to claim 1 13.- kind collection application unit, wherein: the piezoelectric unit combines the energy collected by said plurality of piezoelectric energy harvesting module is formed.
14.根据权利要求13所述的压电型能量收集单元的应用,其特征在于:将所述的压电型能量收集模块铺设在室内、地铁站或其它人流密集广场的地面下。 14. The piezoelectric energy generator as claimed in claim 13 wherein the application unit collector, characterized in that: said piezoelectric energy harvesting module laid under the indoor floor, or other crowded subway station square.
15.根据权利要求14所述的压电型能量收集单元的应用,其特征在于:在所述地面下的沙土层上留出铺设所述的压电型能量收集模块的凹槽,铺设完成后在能量收集模块上方覆盖一层防护材料,并保持与普通地板平齐。 15. The piezoelectric energy generator according to claim 14 to collect the application unit, wherein: the lower layer of sand remaining on the floor of the recess of the laying piezoelectric energy harvesting module, after completion of the laying above the energy collection module covered with a protective material, and remains flush with the ordinary floor.
16.根据权利要求13所述的压电型能量收集单元的应用,其特征在于:将所述的压电型能量收集模块直接铺`设在公路、铁路或飞机场的混凝土下面。 16. The piezoelectric energy generator as claimed in claim 13 wherein the application unit collector, characterized in that: said piezoelectric energy harvesting modules of concrete laid directly following 'provided in road, rail or airport.
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CN106638350A (en) * 2017-01-05 2017-05-10 佛山科学技术学院 Piezoelectric road speed bump apparatus
CN108718161B (en) * 2018-05-31 2019-07-12 北京工业大学 A kind of piezo-electric generating floor

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JP2007166881A (en) 2005-12-19 2007-06-28 Taiheiyo Cement Corp Electric power generating apparatus
CN201479040U (en) 2009-07-30 2010-05-19 江苏亿隆新能源科技发展有限公司 Ground piezoelectric ceramic generator

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007166881A (en) 2005-12-19 2007-06-28 Taiheiyo Cement Corp Electric power generating apparatus
CN201479040U (en) 2009-07-30 2010-05-19 江苏亿隆新能源科技发展有限公司 Ground piezoelectric ceramic generator

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