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CN208063068U - A kind of vibrational energy acquisition system based on magnetic electric compound material - Google Patents

A kind of vibrational energy acquisition system based on magnetic electric compound material Download PDF

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Publication number
CN208063068U
CN208063068U CN201820609286.7U CN201820609286U CN208063068U CN 208063068 U CN208063068 U CN 208063068U CN 201820609286 U CN201820609286 U CN 201820609286U CN 208063068 U CN208063068 U CN 208063068U
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block
metal substrate
permanent magnet
fixed
system based
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CN201820609286.7U
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Chinese (zh)
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周勇
李纯健
潘煜融
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Nanjing University of Information Science and Technology
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Nanjing University of Information Science and Technology
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Abstract

The vibrational energy acquisition system based on magnetic electric compound material that the utility model discloses a kind of, connecting shaft is rotatably connected on pedestal, top is fixedly connected with vane, several fixed pedestals are uniformly fixedly connected on the inner wall of mounting ring along the circumferencial direction of mounting ring, metal substrate is fixed on fixed pedestal, mass block is arranged on metal substrate, and metal substrate is divided into bonding pad and hitting region, fix one piece of block of piezoelectric material in the both ends of the surface of bonding pad respectively in metal substrate, fix a magnetic electric compound material block respectively in the both ends of the surface of mass block, it strikes on block fixed connection shaft, two permanent magnet different poles are positioned opposite and form a permanent magnet unit, several permanent magnet units are distributed on the outer circle wall of impact block, and it is positioned opposite with magnetic pole between adjacent two permanent magnet unit.The utility model not only can from magnetic field collecting energy, can also from mechanical oscillation collecting energy, realize multipotency amount conversion.

Description

A kind of vibrational energy acquisition system based on magnetic electric compound material
Technical field：
The vibrational energy acquisition system based on magnetic electric compound material that the utility model is related to a kind of.
Background technology：
Energy problem is always to receive one of Important Problems of World Focusing, and in today that the energy lacks, how to utilize can The renewable sources of energy are just particularly important.In recent years, the application development of the electronic equipments such as wireless sensor network, microsystem is rapid, The every field such as medical treatment, military affairs, daily life have been widely used in, and how to have selected suitable power supply mode to these systems Endlessly energy is provided, so that it is broken away from traditional power supply restricted lifetime problem becomes a great barrier for hindering its development Hinder.
Vibrational energy is one of the energy of generally existing in environment, is inexhaustible.Thus how to design Vibrational energy harvester realizes that highly effective gathering ambient vibration energy just becomes domestic and international stakeholder's focus of attention.
The selection of piezoelectric material is that the core of piezo-electricity energy harvester selects different piezoelectric materials, to its energy The efficiency of acquisition influences very big, and this patent passes through to the laminated of magnetostriction materials and piezoelectric fibre composite material both materials Design, obtains magnetostriction/piezoelectric fibre composite material, as Energy-aware and switching device, in addition the optimization of peripheral circuit Design enhances energy conversion efficiency, obtains larger power supply output.
Invention content：
The utility model is provided a kind of based on magnetic electric compound material to solve the above-mentioned problems of the prior art Vibrational energy acquisition system.
Technical solution used by the utility model has：A kind of vibrational energy acquisition system based on magnetic electric compound material, Including magnetostriction materials block and block of piezoelectric material, two magnetostriction materials blocks are bonded in the both ends of the surface of block of piezoelectric material respectively And magnetic electric compound material block is formed, further include fixed pedestal, metal substrate, mass block, vane, connecting shaft, impact block, permanent magnetism Body, pedestal and mounting ring, the mounting ring are set on the base, and the bottom end of connecting shaft is rotatably connected on by bearing on pedestal, Top is fixedly connected with vane, and several fixed pedestals are uniformly fixedly connected on the inner wall of mounting ring along the circumferencial direction of mounting ring On, metal substrate is fixed on fixed pedestal, and metal substrate arranges that mass block is arranged in gold along the radial direction of mounting ring Belong on substrate, and metal substrate is divided into bonding pad and hitting region, is fixed respectively in the both ends of the surface of bonding pad in metal substrate One piece of block of piezoelectric material fixes a magnetic electric compound material block respectively in the both ends of the surface of mass block, strikes on block fixed connection shaft, Two permanent magnet different poles are positioned opposite and form a permanent magnet unit, several permanent magnet units are distributed on the excircle of impact block On wall, and it is positioned opposite with magnetic pole between adjacent two permanent magnet unit；Connecting shaft drives impact block rotation, impact block to strike Metal Substrate Hitting region on plate, and the block of piezoelectric material on metal substrate is made to generate piezoelectric regions voltage, impact block rotates and makes permanent magnetism Body generates alternating current magnetic field, and alternating current magnetic field makes magnetic electric compound material block generate magnetoelectricity area voltage.
Further, the impact block includes a cylindrical body, and axis hole is equipped in the axis direction of ontology；In ontology It is evenly equipped with several mounting plates on outer circle wall, installation cavity is formed between adjacent two mounting plate, each permanent magnet unit correspondence is placed in Permanent magnet in one installation cavity, and in permanent magnet unit is fixed on mounting plate.
Further, the mounting plate is equipped with rectangle limiting slot, and permanent magnet is adhered to by glue in rectangle limiting slot.
Further, the top of the connecting shaft is equipped with mounting bracket, several vanes are uniformly fixed on the circumference of mounting bracket On direction.
Further, the mass block is fixed on by glue on metal substrate.
Further, the mass block and impact block are all made of metal material and are made.
Further, the magnetostriction materials block and block of piezoelectric material are rectangular structure.
Further, the magnetic electric compound material block and the block of piezoelectric material on metal substrate are perpendicular.
The utility model has the advantages that：
1）The utility model not only can from magnetic field collecting energy, can also from mechanical oscillation collecting energy, realize Multipotency amount is converted；
2）Energy conversion component uses magnetostriction/piezo-electricity composite material, improves energy conversion efficiency, reaches as far as possible most Big electric energy output；
3）Alternating magnetic field selects rotating permanent magnet to realize, reduces whole system complexity.
Description of the drawings：
Fig. 1 is magnetic electric compound material structural schematic diagram in the utility model.
Fig. 2 is magnetic electric compound material block and the structure chart of block of piezoelectric material on metallic substrates in the utility model.
Fig. 3 is structure chart of the vane in connecting shaft in the utility model.
Fig. 4 is alternating magnetic field design structure schematic diagram in the utility model.
Fig. 5 is the structure chart that block is struck in the utility model.
Fig. 6 is the structure chart of the utility model energy collecting system.
Fig. 7 is the energy collecting system design frame chart of the utility model.
Fig. 8 is the energy acquisition circuit schematic diagram of the utility model.
Specific implementation mode：
The utility model will be further described below with reference to the accompanying drawings.
Such as Fig. 1 to Fig. 6, a kind of vibrational energy acquisition system based on magnetic electric compound material of the utility model, including mangneto Telescopic material block 11 and block of piezoelectric material 12, magnetostriction materials block 11 and block of piezoelectric material 12 are rectangular structure.Two magnetic Telescopic material block 11 is caused to be bonded in respectively in the both ends of the surface of block of piezoelectric material 12 and form magnetic electric compound material block 1.Magnetostriction The structure type that material block 11 forms magnetic electric compound material block 1 with block of piezoelectric material 12 is the conventional means of the prior art, therefore this Utility model no longer repeats its concrete principle and structure composition.
The utility model further includes fixed pedestal 21, metal substrate 22, mass block 23, vane 31, connecting shaft 32, impact block 33, permanent magnet 34, pedestal 41 and mounting ring 42, mounting ring 42 are fixedly connected on pedestal 41, and the bottom end of connecting shaft 32 passes through axis 51 are held to be rotatably connected on pedestal 41, top is fixedly connected with vane 31, several fixed pedestals 21 along mounting ring 42 circumference Direction is uniformly fixedly connected on the inner wall of mounting ring 42.Metal substrate 22 is fixed on fixed pedestal 21, and metal substrate 22 It is arranged along the radial direction of mounting ring 42, mass block 23 is arranged on metal substrate 22, and metal substrate 22 is divided for connection Area A and hitting region B.One piece of block of piezoelectric material 12 is fixed in the both ends of the surface of bonding pad A respectively in metal substrate, in mass block 23 Both ends of the surface on fix a magnetic electric compound material block 1 respectively.Magnetic electric compound material block 1 and the block of piezoelectric material on metal substrate 22 12 is perpendicular.It strikes on 33 fixed connection shaft 32 of block, two 34 different poles of permanent magnet are positioned opposite and form a permanent magnet unit 30, several permanent magnet units 30 are distributed on the outer circle wall of impact block 33, and with magnetic pole phase between adjacent two permanent magnet unit 30 To arrangement.
Connecting shaft 32 drives impact block 33 to rotate, and impact block 33 strikes the hitting region B on metal substrate 22, and makes metal Block of piezoelectric material 12 on substrate 22 generates piezoelectric regions voltage, and impact block 33 rotates and permanent magnet 34 is made to generate alternating current magnetic field, Alternating current magnetic field makes magnetic electric compound material block 1 generate magnetoelectricity area voltage.
Impact block 33 in the utility model includes a cylindrical body 331, and axis is equipped in the axis direction of ontology 331 Hole.It is evenly equipped with several mounting plates 332 on the outer circle wall of ontology 331, installation cavity is formed between adjacent two mounting plate 332 330, the correspondence of each permanent magnet unit 30 is placed in an installation cavity 330, and the permanent magnet 34 in permanent magnet unit 30 is fixed on mounting plate On 332.
For ease of preferably carrying out location and installation to permanent magnet 34, rectangle limiting slot 335 is equipped on mounting plate 332, forever Magnet 34 is adhered to by glue in rectangle limiting slot 335.
For ease of installing vane 31, it is equipped with mounting bracket 35 on the top of connecting shaft 32, several vanes 31 are uniformly fixed on On the circumferencial direction of mounting bracket 35.
Mass block 23 in the utility model is fixed on by glue on metal substrate 22.Mass block 23 and impact block 33 are equal It is made of metal material.
In conjunction with 7 and Fig. 8, in use, in block of piezoelectric material 12 and magnetic electric compound material block 1 on metal substrate 22 Conducting wire is all connected in block of piezoelectric material 12, conducting wire connects energy acquisition circuit.Connecting shaft 32 drives impact block 33 to rotate, and strikes block Hitting region B on 33 impact metal substrates 22, and the block of piezoelectric material 12 on metal substrate 22 is made to generate piezoelectric regions voltage, it hits Block hitting 33 rotates and permanent magnet 34 is made to generate alternating current magnetic field, and alternating current magnetic field makes magnetic electric compound material block 1 generate magnetoelectricity area electricity Pressure.
Energy acquisition circuit is that the output energy to energy collecting device is further processed, mainly include energy acquisition with Conversion, boosting voltage stabilizing and energy stores.
Energy acquisition mainly passes through the block of piezoelectric material 12 on magnetic electric compound material block 1 and metal substrate 22 with conversion module It realizes.The module, as energy conversion device, is respectively turned mechanical energy and magnetic field energy using piezoelectric material and magnetic electric compound material It is changed to electric energy, the wherein structure type of piezoelectric vibrator improves energy conversion efficiency using the beam type structure for adding mass block, humorous Vibration frequency is low, it is easier to realize resonance under low frequency environments, collect more vibrational energies.
The Voltage stabilizing module that boosts is further processed to the output voltage of energy collecting device, which includes rectification, filter Wave and voltage boosting and stabilizing circuit.Rectification circuit use bridge rectifier method, the alternating current after conversion is become into direct current, with realize to Power supply for electrical equipment and to accumulator charge；Meanwhile also limited using this method battery current refluence, protect generator not by Reverse current is burnt out.Filter circuit utilizes capacitor filtering, and the capacity of filter capacitor is bigger, smaller to the capacitive reactance of alternating component, makes residual The alternating component stayed in load is smaller, and filter effect is better.Voltage boosting and stabilizing circuit is using TPS61200 chips as crucial The operating voltage of element, this chip is extremely low, the super low start voltages of 0.5V can be achieved under any load, working efficiency is more More than 90%.Regulator circuit uses three terminal regulator, small, and reliability is high, and using flexible, cheap.
Accumulator uses lithium battery, due to lithium battery have memory-less effect, light-weight, long lifespan, energy storage efficiency it is high, The advantages that response quickly, quickly-chargeable, can be used as the medium of storage energy.After introducing boosting Voltage stabilizing module, in addition to carrying It rises outside input voltage, also plays the effect for reinforcing voltage stability, disappear in this way, system can continuously be automatically replenished its energy Consumption, to extend the working life of system.
The acquisition of above-mentioned energy is in the prior art with conversion, boosting voltage stabilizing and energy stores and energy acquisition circuit Known technology, the utility model is from substantially introducing.
The above is only the preferred embodiment of the utility model, it is noted that for the common skill of the art It for art personnel, can also make several improvements without departing from the principle of this utility model, these improvement also should be regarded as The scope of protection of the utility model.

Claims (8)

1.一种基于磁电复合材料的振动能量采集系统，包括磁致伸缩材料块（11）和压电材料块（12），两磁致伸缩材料块（11）分别粘接在压电材料块（12）的两端面上并形成磁电复合材料块（1），其特征在于： 还包括固定基座（21）、金属基板（22）、质量块（23）、风杯（31）、连接轴（32）、击打块（33）、永磁体（34）、底座（41）和安装环（42），所述安装环（42）设置在底座（41）上，连接轴（32）的底端通过轴承转动连接在底座（41）上，顶端与风杯（31）固定连接，若干固定基座（21）沿着安装环（42）的圆周方向均匀固定连接在安装环（42）的内壁上，金属基板（22）固定于固定基座（21）上，且金属基板（22）沿着安装环（42）的径向方向布置，质量块（23）穿设于金属基板（22）上，并将金属基板（22）分为连接区（A）和击打区（B），在金属基板中连接区（A）的两端面上分别固定一块压电材料块（12），在质量块（23）的两端面上分别固定一磁电复合材料块（1），击打块（33）固定连接轴（32）上，两个永磁体（34）异磁极相对布置并组成一个永磁单元（30），若干个永磁单元（30）均布在击打块（33）的外圆周壁上，且相邻两永磁单元之间同磁极相对布置；连接轴（32）带动击打块（33）旋转，击打块（33）击打金属基板（22）上的击打区（B），并使得金属基板（22）上的压电材料块（12）产生压电区电压，击打块（33）旋转并使得永磁体（34）产生交流磁场，交流磁场使得磁电复合材料块（1）产生磁电区电压。1. A vibration energy harvesting system based on magnetoelectric composite materials, including a magnetostrictive material block (11) and a piezoelectric material block (12), and the two magnetostrictive material blocks (11) are respectively bonded to the piezoelectric material block (12) is formed on both ends of the magnetoelectric composite material block (1), which is characterized in that it also includes a fixed base (21), a metal substrate (22), a mass block (23), a wind cup (31), a connecting Shaft (32), hitting block (33), permanent magnet (34), base (41) and installation ring (42), and the installation ring (42) is arranged on the base (41), connecting the shaft (32) The bottom end is connected to the base (41) through bearing rotation, the top end is fixedly connected to the wind cup (31), and several fixed bases (21) are uniformly fixedly connected to the mounting ring (42) along the circumferential direction of the mounting ring (42). On the inner wall, the metal substrate (22) is fixed on the fixed base (21), and the metal substrate (22) is arranged along the radial direction of the mounting ring (42), and the mass block (23) is penetrated on the metal substrate (22) , and the metal substrate (22) is divided into a connection area (A) and a striking area (B), and a piece of piezoelectric material block (12) is respectively fixed on the two ends of the connection area (A) in the metal substrate. A magnetoelectric composite material block (1) is respectively fixed on both ends of the block (23), the hitting block (33) is fixed on the connecting shaft (32), and two permanent magnets (34) are arranged with opposite magnetic poles to form a permanent magnet unit (30), several permanent magnet units (30) are evenly distributed on the outer circumferential wall of the striking block (33), and the same magnetic poles are arranged between adjacent two permanent magnet units; the connecting shaft (32) drives the striking The block (33) rotates, and the hitting block (33) hits the hitting area (B) on the metal substrate (22), and makes the piezoelectric material block (12) on the metal substrate (22) generate a piezoelectric region voltage, The hitting block (33) rotates and makes the permanent magnet (34) generate an AC magnetic field, and the AC magnetic field makes the magnetoelectric composite material block (1) generate a magnetoelectric region voltage. 2.如权利要求1所述的基于磁电复合材料的振动能量采集系统，其特征在于：所述击打块（33）包括一圆柱形本体（331），在本体（331）的轴心方向设有轴孔；在本体（331）的外圆周壁上均布有若干安装板（332），相邻两安装板（332）之间形成有安装腔（330），每个永磁单元（30）对应置于一安装腔（330）内，且永磁单元（30）中的永磁体（34）固定于安装板（332）上。2. The vibration energy harvesting system based on magnetoelectric composite materials according to claim 1, characterized in that: the hitting block (33) includes a cylindrical body (331), and the axis direction of the body (331) A shaft hole is provided; several mounting plates (332) are evenly distributed on the outer peripheral wall of the body (331), and a mounting cavity (330) is formed between two adjacent mounting plates (332), and each permanent magnet unit (30 ) are correspondingly placed in an installation cavity (330), and the permanent magnet (34) in the permanent magnet unit (30) is fixed on the installation plate (332). 3.如权利要求2所述的基于磁电复合材料的振动能量采集系统，其特征在于：所述安装板（332）上设有矩形限位槽（335），永磁体（34）通过胶水粘接于矩形限位槽（335）内。3. The vibration energy harvesting system based on magnetoelectric composite materials according to claim 2, characterized in that: the mounting plate (332) is provided with a rectangular limit slot (335), and the permanent magnet (34) is glued together by glue. Connected to the rectangular limit slot (335). 4.如权利要求1所述的基于磁电复合材料的振动能量采集系统，其特征在于：所述连接轴（32）的顶端设有安装架（35），若干个风杯（31）均匀固定于安装架（35）的圆周方向上。4. The vibration energy harvesting system based on magnetoelectric composite materials according to claim 1, characterized in that: the top of the connecting shaft (32) is provided with a mounting bracket (35), and several wind cups (31) are evenly fixed on the circumferential direction of the mounting frame (35). 5.如权利要求1所述的基于磁电复合材料的振动能量采集系统，其特征在于：所述质量块（23）通过胶水固定于金属基板（22）上。5. The vibration energy harvesting system based on magnetoelectric composite material according to claim 1, characterized in that: the mass block (23) is fixed on the metal substrate (22) by glue. 6.如权利要求1所述的基于磁电复合材料的振动能量采集系统，其特征在于：所述质量块（23）和击打块（33）均采用金属材料制成。6. The vibration energy harvesting system based on magnetoelectric composite materials according to claim 1, characterized in that: the mass block (23) and the striking block (33) are both made of metal materials. 7.如权利要求1所述的基于磁电复合材料的振动能量采集系统，其特征在于：所述磁致伸缩材料块（11）和压电材料块（12）均为矩形状结构。7. The vibration energy harvesting system based on magnetoelectric composite materials according to claim 1, characterized in that: the magnetostrictive material block (11) and the piezoelectric material block (12) are both rectangular structures. 8.如权利要求1所述的基于磁电复合材料的振动能量采集系统，其特征在于：所述磁电复合材料块（1）与金属基板（22）上的压电材料块（12）相垂直。8. The vibration energy harvesting system based on magnetoelectric composite materials according to claim 1, characterized in that: the magnetoelectric composite material block (1) is in phase with the piezoelectric material block (12) on the metal substrate (22) vertical.
CN201820609286.7U 2018-04-26 2018-04-26 A kind of vibrational energy acquisition system based on magnetic electric compound material Expired - Fee Related CN208063068U (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108347196A (en) * 2018-04-26 2018-07-31 南京信息工程大学 A kind of vibrational energy acquisition system based on magnetic electric compound material
CN113131790A (en) * 2021-04-22 2021-07-16 长春工业大学 Install piezoelectricity power generation facility on step

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108347196A (en) * 2018-04-26 2018-07-31 南京信息工程大学 A kind of vibrational energy acquisition system based on magnetic electric compound material
CN108347196B (en) * 2018-04-26 2023-06-06 南京信息工程大学 A Vibration Energy Harvesting System Based on Magnetoelectric Composite Materials
CN113131790A (en) * 2021-04-22 2021-07-16 长春工业大学 Install piezoelectricity power generation facility on step
CN113131790B (en) * 2021-04-22 2022-06-17 长春工业大学 A piezoelectric generator installed on a step

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Granted publication date: 20181106

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