CN203708143U - Columnar giant magnetostrictive energy harvester - Google Patents
Columnar giant magnetostrictive energy harvester Download PDFInfo
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- CN203708143U CN203708143U CN201420021937.2U CN201420021937U CN203708143U CN 203708143 U CN203708143 U CN 203708143U CN 201420021937 U CN201420021937 U CN 201420021937U CN 203708143 U CN203708143 U CN 203708143U
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- giant magnetostrictive
- end cover
- barrel shrond
- type lever
- bearing
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Abstract
The utility model discloses a columnar giant magnetostrictive energy harvester. According to the columnar giant magnetostrictive energy harvester, a counter weight, screws, an L-shaped lever, a hinge supporting seat, a supporting shaft and a bearing form a vibration pick-up amplification mechanism, wherein the L-shaped lever is installed on the hinge supporting seat through the supporting shaft and the bearing, and the counter weight is mounted on a tray at one end of the L-shaped lever; when a base is subjected to vibration impact, the counter weight on the L-shaped lever will vibrate up and down under the effect of an inertial force, such that the L-shaped lever swings around the supporting shaft, and amplifies and transfers a stress to an input jacking rod; a ball-shaped pressing head of the input jacking rod acts on a giant magnetostrictive bar, such that the giant magnetostrictive bar can be deformed; because the Villari effect of the giant magnetostrictive material, magnetic induction intensity will change; and based on the electromagnetic induction principle, a changing magnetic field makes an induced electromotive force generated in a closed coil, and therefore, electric energy can be outputted to the outside. The columnar giant magnetostrictive energy harvester of the utility model has the advantages of small size, light weight, high energy conversion efficiency, reliable work and long service life.
Description
Technical field
The utility model relates to a kind of energy trap setting, is specifically related to column ultra-magnetic telescopic formula energy accumulator, belongs to novel energy technical field.
Background technology
In recent years; due to the excessive use of fossil energy on the earth; cause the great number of issues such as energy crisis, air pollution, greenhouse effect and climatic variation; therefore various countries researcher starts to find various alternative green energy resources, as solar energy, waterpower, wind energy, underground heat, tidal energy, ocean thermal gradients and vibrational energy etc.Because vibrational energy is not subject to the impact of weather conditions, be not subject to seasonal effect, very general in living environment, and adopt suitable trap setting to be convertible into electric energy form, can from environment, be called energy accumulator by the device of power harvesting, it has become new collection of energy study hotspot.
Traditional vibrational energy trapping mode has electromagnetic type, electrostatic, piezoelectric type, and it is maximum, most widely used general that wherein the vibrational energy of piezoelectric type is captured technical research.But because piezoelectric is hard and crisp, the impact that is limited in scope, exists the factors such as intrinsic polarization phenomena, electromechanical coupling factor is lower, fatigue life is short of its holding capacity, make piezoelectric in use need frequent replacing, limited to a certain extent its application.Along with the development of giant magnetostrictive material, the research that the vibrational energy based on giant magnetostrictive material is captured technology has become a new focus in the world.Piezoelectric relatively,, there is not fatigue, problem of aging simultaneously in the Problem of Failure that giant magnetostrictive material does not exist depolarising to cause, thereby work is more reliable; The electromechanical coupling factor of giant magnetostrictive material can reach 0.75 (piezoelectric ceramic PZT only has 0.3-0.4), and energy conversion efficiency is higher; Their magnetostrictive strain amount is large, is at room temperature greater than 0.15%, thereby sensitiveer than piezoelectric, can under less amplitude, can produce higher voltage.
At present, the energy accumulator structure based on giant magnetostrictive material adopts cantilever beam mostly, and the power conversion of this energy accumulator only has μ W or mW rank, and when vibration source is while vibrating by a narrow margin, power conversion still less.But in environment, a large amount of vibrations that exist are to vibrate by a narrow margin conventionally, and therefore studying the power generation characteristics of ultra-magnetic telescopic energy accumulator in the time vibrating by a narrow margin can more be of practical significance.
Summary of the invention
The utility model is existing based under vibrating by a narrow margin in order to solve, and the low problem of existing vibrational energy trap setting conversion efficiency, proposes a kind of high efficiency column ultra-magnetic telescopic formula energy accumulator.
The technical scheme that the utility model adopts is as follows:
The utility model comprises input push rod, upper end cover, butterfly spring, barrel shrond, induction coil, coil rack, giant magnetostrictive rod, U-shaped upper bracket, bottom end cover, adjustment screw 10, backing-up screw, mass, L-type lever, U-shaped lower carriage, permanent magnet, rocker bar bearing, back shaft, bearing.Mass, L-type lever, rocker bar bearing, back shaft, bearing form pick-up enlarger, and wherein L-type lever is arranged on rocker bar bearing by back shaft and bearing, and mass is fixed on L-type lever one carries a tray.Giant magnetostrictive rod is arranged on the central axis in barrel shrond, giant magnetostrictive rod overcoat has coil rack, induction coil and permanent magnet, wherein induction coil is on coil rack, and be external to regulating circuit through the hole on bottom end cover, be then connected on mems device or accumulator.Giant magnetostrictive rod left end is equipped with input push rod, butterfly spring and upper end cover, wherein inputs push rod through upper end cover central through hole, and can be free to slide, and butterfly spring is enclosed within on input push rod, and upper end cover is threaded with barrel shrond.Giant magnetostrictive rod right-hand member is equipped with adjustment screw, backing-up screw and bottom end cover, and wherein bottom end cover is threaded with barrel shrond, adjustment screw, loosens screw and bottom end cover centre bore threaded engagement the giant magnetostrictive rod that is fixed and clamped.Barrel shrond is arranged on U-shaped lower carriage, and by bolt, U-shaped upper bracket and U-shaped lower carriage is clamped, thereby barrel shrond is fixed.Input push rod contacts with L-type lever other end spherical in pick-up enlarger, and L-type lever is positioned under barrel shrond.
Compared with prior art, the utlity model has following useful technique effect:
1) volume is little, lightweight, is convenient to mems device integrated.
2) precompression and mass are adjustable, are conducive to obtain higher energy conversion efficiency.
3) giant magnetostrictive material dependent variable is large, can under less amplitude, can produce higher voltage.
4) there is not the Problem of Failure that depolarising causes in giant magnetostrictive material, do not have fatigue, problem of aging simultaneously, thereby work is more reliable, longer service life.
5) L-type of the vibratory drive by a narrow margin lever swing in environment, L-type lever picks up and amplifies exciting stress by a narrow margin, then puts on giant magnetostrictive rod with pulsed impact load by input push rod, can obtain high initial instant power; In addition L-type lever self produces decay swing, thereby repeatedly the thin rod of ultra-magnetic telescopic is applied to excitation, and thus, efficiency of energy collection is high.
Accompanying drawing explanation
Fig. 1 is overall structure schematic diagram of the present utility model.
Fig. 2 is threedimensional model schematic diagram of the present utility model.
In figure: 1. input push rod; 2. upper end cover; 3. butterfly spring; 4. barrel shrond; 5. induction coil; 6. coil rack; 7. giant magnetostrictive rod; 8.U type upper bracket; 9. bottom end cover; 10. adjustment screw; 11. backing-up screws; 12. mass; 13. screws; 14.L type lever; 15.U type lower carriage; 16. permanent magnets; 17. rocker bar bearings; 18. back shafts; 19. bearings.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment, the column ultra-magnetic telescopic formula energy accumulator that is suitable for harvest energy from exciting by a narrow margin described in the utility model is described in detail:
As shown in Figure 1, column ultra-magnetic telescopic formula energy accumulator, comprises input push rod 1, upper end cover 2, butterfly spring 3, barrel shrond 4, induction coil 5, coil rack 6, giant magnetostrictive rod 7, U-shaped upper bracket 8, bottom end cover 9, adjustment screw 10, backing-up screw 11, mass 12, screw 13, L-type lever 14, U-shaped lower carriage 15, permanent magnet 16, rocker bar bearing 17, back shaft 18, bearing 19.It is characterized in that: mass 12, screw 13, L-type lever 14, rocker bar bearing 17, back shaft 18, bearing 19 form pick-up enlarger, wherein L-type lever 14 is arranged on rocker bar bearing 17 by back shaft 18 and bearing 19, and mass 12 is fixed on L-type lever 14 1 carries a tray.Giant magnetostrictive rod 7 is arranged on the central axis in barrel shrond 4, giant magnetostrictive rod 7 overcoats have coil rack 6, induction coil 5 and permanent magnet 16, wherein induction coil 5 is on coil rack 6, and be external to regulating circuit through the hole on bottom end cover 9, be then connected on mems device or accumulator.Giant magnetostrictive rod 7 left ends are equipped with input push rod 1, butterfly spring 3 and upper end cover 2, wherein input push rod 1 through upper end cover 2 central through holes, and can be free to slide, and butterfly spring 3 is enclosed within on input push rod 1, and upper end cover 2 is threaded with barrel shrond 4.Giant magnetostrictive rod 7 right-hand members are equipped with adjustment screw 10, backing-up screw 11 and bottom end cover 9, and wherein bottom end cover 9 is threaded with barrel shrond 4, adjustment screw 10 and loosen screw 11 and bottom end cover 9 centre bore threaded engagement the giant magnetostrictive rod 7 that is fixed and clamped.Barrel shrond 4 is arranged on U-shaped lower carriage 15, and by bolt by U-shaped upper and lower stent clamping, thereby barrel shrond 4 is fixing.Input push rod 1 contacts with the 14 one end sphericals of L-type lever in pick-up enlarger, and L-type lever 14 is positioned under barrel shrond 4.
Described energy converslon materials is cylindric giant magnetostrictive rod, and this material has Villari effect, and the effect that giant magnetostrictive material is subject to power deforms, and can cause that the magnetized state of material changes, and inner magnet induction changes.If there is induction coil giant magnetostrictive rod outside, will produce induced electromotive force.
Described input push rod should have certain rigidity, guarantees the efficiency that pressure transmits; Spherical shape is all made at its two ends, guarantees that the direction of transfer of power, along the axis direction of giant magnetostrictive rod, increases compression.
Described input depression bar, barrel shrond, upper end cover, bottom end cover are permeability magnetic material, thereby form closed magnetic circuit with giant magnetostrictive rod; Other are non-magnet material.
Described permanent magnet is used for providing bias magnetic field, improves the mechanical-electric coupling relation of giant magnetostrictive rod, improves energy conversion efficiency.
Described L-type lever adopts stainless steel material, has certain rigidity, guarantees the efficiency that pressure transmits.
Simultaneously can be by the resonance frequency of the quality adjustment L-type lever of change mass and the pressure of input.Can adjust the prestressing force on giant magnetostrictive rod by adjustment screw.
The utility model course of work: in the time that pedestal is subject to vibratory impulse, mass on L-type lever can be under the effect of inertia force up-down vibration, thereby L-type lever is swung around back shaft, transmit and amplify pressure to inputting on push rod, then the ball-type pressure head of inputting push rod acts on giant magnetostrictive rod, makes its compression.Change because the Villari effect of giant magnetostrictive material produces magnetic flux density, then based on electromagnetic induction principle, the magnetic field of variation makes generation induced electromotive force in closing coil, thereby externally exports electric energy.
Figure 2 shows that threedimensional model schematic diagram of the present utility model.Mass is placed in L-type lever one and carries a tray above, and is fixed by screw; Barrel shrond is arranged on U-shaped lower carriage, and by bolt by U-shaped upper and lower stent clamping, thereby barrel shrond is fixed; Upper and lower end cap cuts out respectively two symmetrical side planes, is convenient to the installation of tightening of end cap.
Claims (1)
1. a column ultra-magnetic telescopic formula energy accumulator, comprises input push rod, upper end cover, butterfly spring, barrel shrond, induction coil, coil rack, giant magnetostrictive rod, U-shaped upper bracket, bottom end cover, adjustment screw 10, backing-up screw, mass, L-type lever, U-shaped lower carriage, permanent magnet, rocker bar bearing, back shaft, bearing; It is characterized in that: mass, L-type lever, rocker bar bearing, back shaft, bearing form pick-up enlarger, and wherein L-type lever is arranged on rocker bar bearing by back shaft and bearing, mass is fixed on L-type lever one carries a tray; Giant magnetostrictive rod is arranged on the central axis in barrel shrond, giant magnetostrictive rod overcoat has coil rack, induction coil and permanent magnet, wherein induction coil is on coil rack, and be external to regulating circuit through the hole on bottom end cover, be then connected on mems device or accumulator; Giant magnetostrictive rod left end is equipped with input push rod, butterfly spring and upper end cover, wherein inputs push rod through upper end cover central through hole, and can be free to slide, and butterfly spring is enclosed within on input push rod, and upper end cover is threaded with barrel shrond; Giant magnetostrictive rod right-hand member is equipped with adjustment screw, backing-up screw and bottom end cover, and wherein bottom end cover is threaded with barrel shrond, adjustment screw, loosens screw and bottom end cover centre bore threaded engagement the giant magnetostrictive rod that is fixed and clamped; Barrel shrond is arranged on U-shaped lower carriage, and by bolt, U-shaped upper bracket and U-shaped lower carriage is clamped, thereby barrel shrond is fixed; Input push rod contacts with L-type lever other end spherical in pick-up enlarger, and L-type lever is positioned under barrel shrond.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420021937.2U CN203708143U (en) | 2014-01-14 | 2014-01-14 | Columnar giant magnetostrictive energy harvester |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420021937.2U CN203708143U (en) | 2014-01-14 | 2014-01-14 | Columnar giant magnetostrictive energy harvester |
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| CN203708143U true CN203708143U (en) | 2014-07-09 |
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| CN201420021937.2U Expired - Fee Related CN203708143U (en) | 2014-01-14 | 2014-01-14 | Columnar giant magnetostrictive energy harvester |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103762891A (en) * | 2014-01-14 | 2014-04-30 | 杭州电子科技大学 | Columnar giant magnetostrictive telescopic energy harvester |
| CN104184364A (en) * | 2014-07-21 | 2014-12-03 | 浙江大学 | Magnetostrictive-electromagnetic combining vibration energy collector and method thereof |
| CN105245130A (en) * | 2015-11-09 | 2016-01-13 | 杭州电子科技大学 | Device and method for collecting track vibration energy based on giant magnetostrictive rod |
| CN108183627A (en) * | 2018-01-30 | 2018-06-19 | 沈阳航空航天大学 | Direction vibration energy collecting device based on giant magnetostrictive material |
| CN108448930A (en) * | 2018-03-02 | 2018-08-24 | 武汉理工大学 | Rail vibration energy collection device |
| CN110058246A (en) * | 2019-05-10 | 2019-07-26 | 苏州静声泰科技有限公司 | A kind of Miniaturized low-frequency underwater acoustic transducer |
-
2014
- 2014-01-14 CN CN201420021937.2U patent/CN203708143U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103762891A (en) * | 2014-01-14 | 2014-04-30 | 杭州电子科技大学 | Columnar giant magnetostrictive telescopic energy harvester |
| CN103762891B (en) * | 2014-01-14 | 2016-01-20 | 杭州电子科技大学 | Columnar giant magnetostrictive telescopic energy harvester |
| CN104184364A (en) * | 2014-07-21 | 2014-12-03 | 浙江大学 | Magnetostrictive-electromagnetic combining vibration energy collector and method thereof |
| CN105245130A (en) * | 2015-11-09 | 2016-01-13 | 杭州电子科技大学 | Device and method for collecting track vibration energy based on giant magnetostrictive rod |
| CN108183627A (en) * | 2018-01-30 | 2018-06-19 | 沈阳航空航天大学 | Direction vibration energy collecting device based on giant magnetostrictive material |
| CN108183627B (en) * | 2018-01-30 | 2019-10-01 | 沈阳航空航天大学 | Direction vibration energy collecting device based on giant magnetostrictive material |
| CN108448930A (en) * | 2018-03-02 | 2018-08-24 | 武汉理工大学 | Rail vibration energy collection device |
| CN110058246A (en) * | 2019-05-10 | 2019-07-26 | 苏州静声泰科技有限公司 | A kind of Miniaturized low-frequency underwater acoustic transducer |
| CN110058246B (en) * | 2019-05-10 | 2024-05-31 | 苏州静声泰科技有限公司 | Miniaturized low-frequency underwater acoustic transducer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140709 Termination date: 20170114 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |