CN204068760U - A kind of magnetostriction-Electromagnetic heating formula vibration energy collector - Google Patents
A kind of magnetostriction-Electromagnetic heating formula vibration energy collector Download PDFInfo
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- CN204068760U CN204068760U CN201420401514.3U CN201420401514U CN204068760U CN 204068760 U CN204068760 U CN 204068760U CN 201420401514 U CN201420401514 U CN 201420401514U CN 204068760 U CN204068760 U CN 204068760U
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Abstract
The utility model discloses a kind of magnetostriction-Electromagnetic heating formula vibration energy collector.The base plate of vibration energy collector is left, Right vertical places left permanent magnet, right permanent magnet, base plate is fixed with left L-type fixed support structure, right L-type fixed support structure, base plate center is provided with screwed hole, lower tightening screw is provided with in screwed hole, left L-type fixed support structure, I shape hinge displacement structure for amplifying lower end is provided with from top to bottom in right L-type fixed support structure, magnetostrictive material, lower fixture, disc spring, pick-up winding is evenly wound on magnetostrictive material outer surface, disc spring overlays on the lower convex platform of lower fixture, left permanent magnet, there is left air gap respectively and between the lower surface of I shape hinge displacement structure for amplifying upper end in right permanent magnet upper surface, right air gap.The utility model apparatus structure is compact, is convenient to small-sized microminiaturization, has pressure magnetic-Electromagnetic heating generating characteristic, can be applicable to the vibrational energy collection under high capacity vibration environment.
Description
Technical field
The utility model relates to a kind of magnetostriction-Electromagnetic heating formula vibration energy collector, is specifically related to a kind ofly small-sizedly be convenient to integrated magnetostriction-Electromagnetic heating formula, high capacity vibration energy collector.
Background technology
Along with the extensive use of wireless senser in sensor network and MEMS (micro electro mechanical system), have that useful life is short, maintenance cost is high, be not easy to the conventional batteries of the shortcomings such as replacing, contaminated environment, be difficult to meet its power demands.How efficient from environment collecting energy, realizing the self energizing technology of wireless senser, is the hot issue of recent domestic scholar's research.The studied person's favor of the generality that vibrational energy exists with it, energy density high.Simultaneously, the low cost of vibration energy collector, small size structure, the long-life, easy of integration, do not need to change or the advantage such as charging, be particularly suitable for as wireless sensor network node is powered, to solving, the replacing of chemical cell and the self energizing of transducer in wireless sensor network node are significant.
Current vibration energy collector generally adopts piezoelectric to design and produce, and has structural volume little, is convenient to integrated feature, has extraordinary application prospect in MEMS (micro electro mechanical system).But existing piezoelectric vibration energy collector exist electromotive power output little, be not easy to be operated in the deficiencies such as high capacity vibration environment, and large electrical power exports with small size structure, to be convenient to integrated contradicting be key issue during existing vibration energy collector device is developed always.Magnetostrictive material have very superior pressure magnetic energy transfer characteristic, large stress impact and high capacity environment can be operated in, the large stress vibration environment such as railway, highway can be met preferably, and the machine magnetic coupling coefficient of magnetostrictive material is large, load capacity is strong, energy density is high, conversion efficiency advantages of higher, is particularly suitable for the application and development of novel vibrating electricity energy harvester.
Export with small size structure for there is large electrical power in existing vibration energy collector application, be convenient to integrated conflicting problem, explore and develop a kind of be applicable to high capacity vibration environment small-sized, be easy to integrated high-power, high-performance vibration energy collector, for the power supply performance of self energizing technology in wireless sensor network, useful life and the stability of a system provide safeguard.
Summary of the invention
The purpose of this utility model overcomes the deficiencies in the prior art, provides a kind of magnetostriction-Electromagnetic heating formula vibration energy collector.
Magnetostriction-Electromagnetic heating formula vibration energy collector comprises left L-type fixed support structure, right L-type fixed support structure, I shape hinge displacement structure for amplifying, magnetostrictive material, pick-up winding, lower fixture, disc spring, lower tightening screw, left air gap, right air gap, left permanent magnet, right permanent magnet, base plate, base plate is left, right side is respectively equipped with a groove, the left permanent magnet of vertical placement in a groove, right permanent magnet, base plate is fixed with left L-type fixed support structure, right L-type fixed support structure, base plate center is provided with screwed hole, lower tightening screw is provided with in screwed hole, left L-type fixed support structure, I shape hinge displacement structure for amplifying lower end is provided with from top to bottom in right L-type fixed support structure, magnetostrictive material, lower fixture, disc spring, pick-up winding is wound on the outer surface of magnetostrictive material uniformly, magnetostrictive material upper, bottom is placed in the groove of I shape hinge displacement structure for amplifying lower end lower surface and lower fixture respectively, disc spring overlays on the lower convex platform of lower fixture, left permanent magnet, there is left air gap respectively and between the lower surface of I shape hinge displacement structure for amplifying upper end in the upper surface of right permanent magnet, right air gap.
The material of described I shape hinge displacement structure for amplifying, lower fixture, lower tightening screw and base plate all adopts No. 10 steel of high permeance; The material of left L-type fixed support structure, right L-type fixed support structure is non-magnetic 1Cr18Ni9Ti.
Described lower fixture adopts stepped construction, selects matched in clearance with lower tightening screw, bottom plate contact area; Lower fixture lower surface and under screw the structural adjustment spacing between screw grooves face with 5-6mm.
Described lower tightening screw coordinates with the thread pitch between base plate for 1mm.
Described left permanent magnet, right permanent magnet material are Nd-Fe-Bo permanent magnet material, and adopt axial direction to magnetize, left permanent magnet and right permanent magnet upper end are N pole, and lower end is S pole; The left air gap of the upper surface of left permanent magnet, right permanent magnet respectively and between the lower surface of I shape hinge displacement structure for amplifying upper end, right gas length are 4-5mm.
Described left permanent magnet, right permanent magnet material are Nd-Fe-Bo permanent magnet material, and adopt axial direction to magnetize, the upper end of left permanent magnet is N pole, and lower end is S pole, and the upper end of right permanent magnet is S pole, and lower end is N pole; Left gas length between the upper surface of left permanent magnet and the lower surface of I shape hinge displacement structure for amplifying upper end is 4-5mm, and the right gas length between the upper surface of right permanent magnet and the lower surface of I shape hinge displacement structure for amplifying upper end is 8-10mm.
The beneficial effect that the utility model compared with prior art has:
1) the utility model adopts the generating of pressure magnetic to combine with Electromagnetic generation, by the design of apparatus structure, can realize changing while magnetostrictive material internal pressure stress and magnetic field intensity under the effect of environment vibration source, and adopt hinge displacement structure for amplifying to gather mutually with variable-air-gap structure, greatly improve collection and the conversion efficiency of ambient vibration energy, there is the energy acquisition feature that high-power power exports.
2) the utility model adopts magnetostrictive material to design and produce transducer, and this transducer can be operated in the vibration environment of high capacity, has high-performance, high reliability feature; Meanwhile, the magnetostrictive transducer under this structure has compressive pre-stress, the adjustable feature of gas length, can meet the collection demand of high-performance vibrational energy under wide vibration frequency, load stress environment.
3) the utility model is ensureing under the prerequisite that larger electrical power exports, there is structural volume little, assembling parts is few, being easy to dismounting, changing the feature such as parts, to export and small size structure, to be convenient to integrated conflicting problem very meaningful solving electrical power large in existing vibration energy collector.
Accompanying drawing explanation
Fig. 1 is symmetrical expression magnetostriction-main cutaway view of Electromagnetic heating formula vibration energy collector;
Fig. 2 is asymmetric magnetostriction-main cutaway view of Electromagnetic heating formula vibration energy collector.
Embodiment
As shown in Figure 1, magnetostriction-Electromagnetic heating formula vibration energy collector comprises left L-type fixed support structure 1, right L-type fixed support structure 2, I shape hinge displacement structure for amplifying 3, magnetostrictive material 4, pick-up winding 5, lower fixture 6, disc spring 7, lower tightening screw 8, left air gap 9, right air gap 10, left permanent magnet 11, right permanent magnet 12, base plate 13, base plate 13 is left, right side is respectively equipped with a groove, the left permanent magnet 11 of vertical placement in a groove, right permanent magnet 12, base plate 10 is fixed with left L-type fixed support structure 1, right L-type fixed support structure 2, base plate 13 center is provided with screwed hole, lower tightening screw 8 is provided with in screwed hole, left L-type fixed support structure 1, I shape hinge displacement structure for amplifying 3 lower end is provided with from top to bottom in right L-type fixed support structure 2, magnetostrictive material 4, lower fixture 6, disc spring 7, pick-up winding 5 is wound on the outer surface of magnetostrictive material 4 uniformly, magnetostrictive material 4 upper, bottom is placed in the groove of I shape hinge displacement structure for amplifying 2 lower end lower surface and lower fixture 6 respectively, disc spring 7 overlays on the lower convex platform of lower fixture 6, left permanent magnet 11, there is left air gap 9 respectively and between the lower surface of I shape hinge displacement structure for amplifying 3 upper end in the upper surface of right permanent magnet 12, right air gap 10.
The material of described I shape hinge displacement structure for amplifying 3, lower fixture 6, lower tightening screw 8 and base plate 13 all adopts No. 10 steel of high permeance; The material of left L-type fixed support structure 1, right L-type fixed support structure 2 is non-magnetic 1Cr18Ni9Ti.
Described lower fixture 6 adopts stepped construction, selects matched in clearance with lower tightening screw 8, base plate 13 contact area; There is between lower fixture 6 lower surface and lower tightening screw 8 groove surface the structural adjustment spacing of 5-6mm.
Described lower tightening screw 8 coordinates with the thread pitch between base plate 13 for 1mm.
Described left permanent magnet 11, right permanent magnet 12 material are Nd-Fe-Bo permanent magnet material, and adopt axial direction to magnetize, left permanent magnet 11 and right permanent magnet 12 upper end are N pole, and lower end is S pole, as shown in Figure 1; The left air gap 9 of the upper surface of left permanent magnet 11, right permanent magnet 12 respectively and between the lower surface of I shape hinge displacement structure for amplifying 3 upper end, right air gap 10 length are 4-5mm.
Described left permanent magnet 11, right permanent magnet 12 material are Nd-Fe-Bo permanent magnet material, and adopt axial direction to magnetize, the upper end of left permanent magnet 11 is N pole, and lower end is S pole, and the upper end of right permanent magnet 12 is S pole, and lower end is N pole, as shown in Figure 2; Left air gap 9 length between the upper surface of left permanent magnet 11 and the lower surface of I shape hinge displacement structure for amplifying 3 upper end is 4-5mm, and right air gap 10 length between the upper surface of right permanent magnet 12 and the lower surface of I shape hinge displacement structure for amplifying 3 upper end is 8-10mm.
Magnetostriction-Electromagnetic heating formula vibrational energy the acquisition method of collector comprises: the lower tightening screw 8 of rotation extrudes disc spring 7 and deformation occurs, the compressive pre-stress that adjustable magnetostrictive material 4 work, regulate the length of left air gap 9 and right air gap 10, the pre-add bias magnetic field that adjustable magnetostrictive material 4 work, environmentally vibration source feature can adjust the preload working point of magnetostrictive material 4, when vibration source acts on the left side of I shape hinge displacement structure for amplifying 3 upper surface, centre, right side, I shape hinge displacement structure for amplifying 3 is by the downward Displacement-deformation of generation or angular deflection, cause compression and left air gap 9 in magnetostrictive material 4, the length of right air gap 10 changes, in magnetostrictive material 4, the change of compression will produce piezomagnetic effect, the change of left air gap 9 and right air gap 10 length will make magnetostrictive material 4 internal magnetic field intensity change, and produce the compound power-generating effect of pressure magnetic generating-Electromagnetic generation, when right permanent magnet 12 takes N pole, upper end, during the mode that magnetizes of S pole, lower end, energy collecting device has symmetry in structure and collection effect, left permanent magnet 11, right permanent magnet 12 provides in the same way and the equal bias magnetic field of amplitude for magnetostrictive material 4, when vibration source effect makes I shape hinge displacement structure for amplifying 3 that angular deflection occur, generation one is increased one and subtracts change by the length of left air gap 9 and right air gap 10, destroy structural symmetry, make left permanent magnet 11, the effect that right permanent magnet 12 acts on the change of magnetostrictive material 4 internal magnetic field is contrary, the change of magnetostrictive material 4 internal stress superposes the pressure magnetic-Electromagnetic generation effect that can realize multiple performance with two parts changes of magnetic field, when right permanent magnet 12 takes S pole, upper end, during the mode that magnetizes of N pole, lower end, left permanent magnet 11, right permanent magnet 12 provides contrary bias magnetic field for magnetostrictive material 4, energy collecting device has asymmetric feature in structure and collection effect, wherein left permanent magnet 11 provides main bias magnetic field for magnetostrictive material 4, right permanent magnet 12 has reduction effect to main bias magnetic field, because left air gap 9 is unequal with the effective length of right air gap 10, when vibration source acts on I shape hinge displacement structure for amplifying 3 upper surface, the length of left air gap 9 and right air gap 10 will change, when left air gap 9 length is less than right air gap 10 length, left permanent magnet 11 still provides main field, when left air gap 9 length is greater than right air gap 10 length, the contribution of right permanent magnet 12 pairs of magnetostrictive material 4 resultant magnetic fields will be greater than left permanent magnet 11, thus just to realize in magnetostrictive material 4 resultant magnetic field, substitute in the other direction, just can realize, the electrical power that negative signal replaces exports.
Claims (6)
1. magnetostriction-Electromagnetic heating formula vibration energy collector, is characterized in that comprising left L-type fixed support structure (1), right L-type fixed support structure (2), I shape hinge displacement structure for amplifying (3), magnetostrictive material (4), pick-up winding (5), lower fixture (6), disc spring (7), lower tightening screw (8), left air gap (9), right air gap (10), left permanent magnet (11), right permanent magnet (12), base plate (13), base plate (13) is left, right side is respectively equipped with a groove, the left permanent magnet of vertical placement (11) in a groove, right permanent magnet (12), base plate (13) is fixed with left L-type fixed support structure (1), right L-type fixed support structure (2), base plate (13) center is provided with screwed hole, lower tightening screw (8) is provided with in screwed hole, left L-type fixed support structure (1), I shape hinge displacement structure for amplifying (3) lower end is provided with from top to bottom in right L-type fixed support structure (2), magnetostrictive material (4), lower fixture (6), disc spring (7), pick-up winding (5) is wound on the outer surface of magnetostrictive material (4) uniformly, magnetostrictive material (4) upper, bottom is placed in the groove of I shape hinge displacement structure for amplifying (2) lower end lower surface and lower fixture (6) respectively, disc spring (7) overlays on the lower convex platform of lower fixture (6), left permanent magnet (11), there is left air gap (9) respectively and between the lower surface of I shape hinge displacement structure for amplifying (3) upper end in the upper surface of right permanent magnet (12), right air gap (10).
2. a kind of magnetostriction according to claim 1-Electromagnetic heating formula vibration energy collector, is characterized in that: the material of described I shape hinge displacement structure for amplifying (3), lower fixture (6), lower tightening screw (8) and base plate (13) all adopts No. 10 steel of high permeance; The material of left L-type fixed support structure (1), right L-type fixed support structure (2) is non-magnetic 1Cr18Ni9Ti.
3. a kind of magnetostriction according to claim 1-Electromagnetic heating formula vibration energy collector, is characterized in that: described lower fixture (6) adopts stepped construction, selects matched in clearance with lower tightening screw (8), base plate (13) contact area; There is between lower fixture (6) lower surface and lower tightening screw (8) groove surface the structural adjustment spacing of 5-6mm.
4. a kind of magnetostriction according to claim 1-Electromagnetic heating formula vibration energy collector, is characterized in that: described lower tightening screw (8) coordinates with the thread pitch between base plate (13) for 1mm.
5. a kind of magnetostriction according to claim 1-Electromagnetic heating formula vibration energy collector, it is characterized in that: described left permanent magnet (11), right permanent magnet (12) material are Nd-Fe-Bo permanent magnet material, employing axial direction magnetizes, left permanent magnet (11) and right permanent magnet (12) upper end are N pole, and lower end is S pole; The left air gap (9) of upper surface respectively and between the lower surface of I shape hinge displacement structure for amplifying (3) upper end of left permanent magnet (11), right permanent magnet (12), right air gap (10) length are 4-5mm.
6. a kind of magnetostriction according to claim 1-Electromagnetic heating formula vibration energy collector, it is characterized in that: described left permanent magnet (11), right permanent magnet (12) material are Nd-Fe-Bo permanent magnet material, employing axial direction magnetizes, the upper end of left permanent magnet (11) is N pole, lower end is S pole, the upper end of right permanent magnet (12) is S pole, and lower end is N pole; Left air gap (9) length between the upper surface of left permanent magnet (11) and the lower surface of I shape hinge displacement structure for amplifying (3) upper end is 4-5mm, and right air gap (10) length between the upper surface of right permanent magnet (12) and the lower surface of I shape hinge displacement structure for amplifying (3) upper end is 8-10mm.
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| CN201420401514.3U CN204068760U (en) | 2014-07-21 | 2014-07-21 | A kind of magnetostriction-Electromagnetic heating formula vibration energy collector |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104184364A (en) * | 2014-07-21 | 2014-12-03 | 浙江大学 | Magnetostrictive-electromagnetic combining vibration energy collector and method thereof |
| CN106100438A (en) * | 2016-06-24 | 2016-11-09 | 沈阳工业大学 | Dynamic permanent magnet field drive-type ultra-magnetic deformation actuator |
| CN110707894A (en) * | 2019-10-31 | 2020-01-17 | 南京理工大学 | Vibration energy collector based on multiple magnetic phase change alloys |
-
2014
- 2014-07-21 CN CN201420401514.3U patent/CN204068760U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104184364A (en) * | 2014-07-21 | 2014-12-03 | 浙江大学 | Magnetostrictive-electromagnetic combining vibration energy collector and method thereof |
| CN106100438A (en) * | 2016-06-24 | 2016-11-09 | 沈阳工业大学 | Dynamic permanent magnet field drive-type ultra-magnetic deformation actuator |
| CN106100438B (en) * | 2016-06-24 | 2017-12-01 | 沈阳工业大学 | Dynamic permanent magnet field drive-type ultra-magnetic deformation actuator |
| CN110707894A (en) * | 2019-10-31 | 2020-01-17 | 南京理工大学 | Vibration energy collector based on multiple magnetic phase change alloys |
| CN110707894B (en) * | 2019-10-31 | 2021-10-15 | 南京理工大学 | Vibration energy collector based on multiple magnetic phase change alloys |
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Granted publication date: 20141231 Effective date of abandoning: 20160518 |
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| C25 | Abandonment of patent right or utility model to avoid double patenting |