CN107492999B - A kind of vibration generating device - Google Patents
A kind of vibration generating device Download PDFInfo
- Publication number
- CN107492999B CN107492999B CN201710743424.0A CN201710743424A CN107492999B CN 107492999 B CN107492999 B CN 107492999B CN 201710743424 A CN201710743424 A CN 201710743424A CN 107492999 B CN107492999 B CN 107492999B
- Authority
- CN
- China
- Prior art keywords
- permanent magnet
- pedestal
- coil
- generating device
- vibration generating
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 42
- 238000010248 power generation Methods 0.000 claims abstract description 32
- 238000003825 pressing Methods 0.000 claims abstract description 8
- 239000000463 material Substances 0.000 claims description 19
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 239000004411 aluminium Substances 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical group [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 229910000881 Cu alloy Inorganic materials 0.000 claims description 2
- 230000005611 electricity Effects 0.000 abstract description 10
- 230000000694 effects Effects 0.000 abstract description 8
- 238000000034 method Methods 0.000 abstract description 6
- 230000008569 process Effects 0.000 abstract description 5
- 230000008859 change Effects 0.000 abstract description 4
- 230000005674 electromagnetic induction Effects 0.000 abstract description 4
- 238000009527 percussion Methods 0.000 abstract description 4
- BGPVFRJUHWVFKM-UHFFFAOYSA-N N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] Chemical compound N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] BGPVFRJUHWVFKM-UHFFFAOYSA-N 0.000 description 10
- 229910001209 Low-carbon steel Inorganic materials 0.000 description 3
- 230000005389 magnetism Effects 0.000 description 3
- 229910052761 rare earth metal Inorganic materials 0.000 description 3
- 150000002910 rare earth metals Chemical class 0.000 description 3
- 229910001329 Terfenol-D Inorganic materials 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- QJVKUMXDEUEQLH-UHFFFAOYSA-N [B].[Fe].[Nd] Chemical compound [B].[Fe].[Nd] QJVKUMXDEUEQLH-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000002305 electric material Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910001172 neodymium magnet Inorganic materials 0.000 description 1
- 239000011505 plaster Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K35/00—Generators with reciprocating, oscillating or vibrating coil system, magnet, armature or other part of the magnetic circuit
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
- H02N2/00—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction
- H02N2/18—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction producing electrical output from mechanical input, e.g. generators
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
- H02N2/00—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction
- H02N2/18—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction producing electrical output from mechanical input, e.g. generators
- H02N2/186—Vibration harvesters
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- General Electrical Machinery Utilizing Piezoelectricity, Electrostriction Or Magnetostriction (AREA)
Abstract
The invention discloses a kind of vibration generating devices, including Power Generation Section and support portion；Power Generation Section includes being sequentially overlapped fixed top cover, upper permanent magnet, the magnetostrictor for being wound with coil, lower permanent magnet；Support portion includes elastic component and pedestal.In use, applying pressure to top cover, move downward permanent magnet, magnetostrictor, coil and lower permanent magnet together, the length of magnetic path is caused to change, to make coil generate changing magnetic field, according to Faraday's electromagnetic induction law, induced electromotive force is generated in coil, i.e. electromagnetic type generates electricity；When because of pressing top cover, lower permanent magnet squeezes pedestal and generates percussion to pedestal, is closed magnetic circuit, the reaction force acts generated simultaneously generate changing magnetic field in magnetostrictor, and according to counter magnetostriction effect in coil, and then generating induced electromotive force, i.e., piezomagnetic generates electricity.Device design is simple, and including electromagnetic type power generation and piezomagnetic two electricity generation process of power generation, this improves generating efficiencies.
Description
Technical field
The present invention relates to power fields, more specifically to a kind of vibration generating device.
Background technique
Electric energy is a kind of common power source, and especially in summer, with increasing for each household electric equipment, the usage amount of electric energy is not
It is disconnected to rise violently.There are many generations of electric energy, such as relies on solar energy, wind energy, geothermal energy, but the utilization of such energy is by the external world
The influence of environmental factor, application range are limited.Therefore, in recent years, the vibrating power-generation not influenced by factors such as environment, is increasingly becoming
The hot spot of research.
For the prior art, mainly there are piezoelectric type, electrostatic, electromagnetic type and super mangneto by the device of vibrating power-generation
Telescopic four kinds.The structure of vibration generating device is relative complex on the market, and volume is larger, with the micromation of device at this stage, nothing
The design concept of line is runed counter to；And the working frequency range of such device is higher, and it is not easy to identify in the case where vibrating lesser situation, such as mark time
Vibration etc., therefore application range is limited, generating efficiency is lower.
Therefore, how to simplify vibration generating device, improve generating efficiency, be the problem that the field is urgently to be resolved at this stage.
Summary of the invention
In view of this, the device can simplify vibrating power-generation the purpose of the present invention is to provide a kind of vibration generating device
Device improves generating efficiency, solves the problems, such as the field at this stage.
A kind of vibration generating device, including Power Generation Section and support portion；
The Power Generation Section include be sequentially overlapped fixed top cover, upper permanent magnet, the magnetostrictor for being wound with coil, under forever
Magnet, the coil is for collecting electric energy；
The support portion includes elastic component and pedestal；The elastic component is sleeved on outside the Power Generation Section, and the elastic component
One end mutually fixed with the pedestal, the other end is connected with the top cover, is used to support the Power Generation Section；When the pressing top
Gai Shi can be such that the lower permanent magnet squeezes and tap the pedestal.
Preferably, the vibration generating device, further includes sleeve and ring seat, and the sleeve is sleeved on the elastic component
Outside, and one end of the sleeve is mutually fixed with the pedestal, and the other end is mutually fixed with the ring seat, and the top energy of the top cover
Enough across the ring seat.
Preferably, the vibration generating device, the sleeve are to be spirally connected with the pedestal.
Preferably, the vibration generating device, the sleeve are to be spirally connected with the ring seat.
Preferably, the vibration generating device, when the lower permanent magnet squeezes the pedestal, the lower permanent magnetism physical efficiency
It is enough to fit with the pedestal.
Preferably, the vibration generating device is equipped with insulating layer between the coil and the upper permanent magnet.
Preferably, the vibration generating device is equipped with insulating layer between the coil and the lower permanent magnet.
Preferably, the vibration generating device, the pedestal are equipped with annular groove, and the elastic component passes through the annular groove and institute
Pedestal is stated mutually to fix.
Preferably, the vibration generating device, the material of the coil are copper, or are aluminium, or are copper alloy.
Preferably, the vibration generating device, the material of the magnetostrictor are rare earth ultra-magnetostriction material.
Vibration generating device proposed by the present invention, including Power Generation Section and support portion；The Power Generation Section includes being sequentially overlapped admittedly
Fixed top cover, upper permanent magnet, the magnetostrictor for being wound with coil, lower permanent magnet；The support portion includes elastic component and pedestal.
In use, applying pressure to top cover, moves downward permanent magnet, magnetostrictor, coil and lower permanent magnet together, cause
The length of magnetic path changes, and is generated in coil so that coil be made to generate changing magnetic field according to Faraday's electromagnetic induction law
The power generation of induced electromotive force, i.e. electromagnetic type；When because of pressing top cover, lower permanent magnet squeezes pedestal and generates percussion to pedestal, makes magnetic
Road closure, while the reaction force acts generated generate change in magnetostrictor, and according to counter magnetostriction effect in coil
The magnetic field of change, and then generate induced electromotive force, i.e., piezomagnetic generates electricity.Device design is simple, can occur in top cover vibration
The above process；And vibrate when include electromagnetic type power generation and piezomagnetic generate electricity two electricity generation process therefore substantially increase power generation
Efficiency solves the problems, such as the field at this stage.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is the explosive view of vibration generating device in the specific embodiment of the invention.
In Fig. 1:
Top cover -1, upper permanent magnet -2, coil -3, magnetostrictor -4, lower permanent magnet -5, elastic component -6, bottom
Seat -7, sleeve -8, ring seat -9.
Specific embodiment
The core of present embodiment is to provide a kind of vibration generating device, which can simplify vibrating power-generation dress
It sets, improves generating efficiency, solve the problems, such as the field at this stage.
Hereinafter, being illustrated referring to attached drawing to embodiment.In addition, embodiments illustrated below is not to recorded in claim
Summary of the invention rise any restriction effect.In addition, the full content of composition represented by following example is not limited to as right
Necessary to the solution invented documented by it is required that.
The vibration generating device that present embodiment provides mainly includes Power Generation Section and support portion.Wherein, Power Generation Section is wrapped
It includes: top cover 1, upper permanent magnet 2, magnetostrictor 4, lower permanent magnet 5；And top cover 1, upper permanent magnet 2, magnetostrictor 4, lower permanent magnetism
Body 5 is to be sequentially overlapped fixed structure from top to bottom, and the coil 3 for collecting electric energy is wound on magnetostrictor 4；It is practical
When design, top cover 1, pedestal 7, sleeve 8, ring seat 9 can choose the higher material of magnetic conductivity, such as mild steel.Support portion can be with
Including elastic component 6 and pedestal 7；Wherein, elastic component 6 is sleeved on outside Power Generation Section, as shown in Figure 1；One end of elastic component 6 and pedestal 7
Mutually fixed, the other end is connected, for being supported to Power Generation Section with top cover 1, i.e., by playing with the fixation of 1 phase of top cover to power generation
The supporting role of portion's entirety；The elastic component 6 can be spring or other have elasticity and can play the component of equivalent effect.
The low-carbon steel material that pedestal 7 can also select magnetic conductivity high.It please specifically be detailed in Fig. 1.
Further, above-mentioned vibration generating device makes permanent magnet 2, magnetostrictor in use, to the application pressure of top cover 1
4, coil 3 and lower permanent magnet 5 move downward together, and the length of magnetic path is caused to change, so that coil 3 be made to generate the magnetic changed
, according to Faraday's electromagnetic induction law, induced electromotive force is generated in coil 3, i.e. electromagnetic type generates electricity；When because of pressing top cover 1,
Lower permanent magnet 5 squeezes pedestal and generates percussion to pedestal, is closed magnetic circuit, while the reaction force acts generated are in mangneto
Extrusome 4, and according to counter magnetostriction effect, changing magnetic field is generated in coil 3, and then generate induced electromotive force, that is, press
Magnetic-type power generation.Device design is simple, and the above process can occur when top cover 1 vibrates；It and include electromagnetic type power generation when vibrating
The efficiency of power generation therefore is substantially increased with two electricity generation process of piezomagnetic power generation, solves the problems, such as the field at this stage.
It should be noted that the mode of magnetizing of upper permanent magnet 2 and lower permanent magnet 5 is axial charging, and polar sites are all
It is N-S, N-S, i.e. the pole N is arranged in the upper, pole S under to be in the same direction.
The vibration generating device that present embodiment provides can also include sleeve 8 and ring seat 9, which can be into
One step protects the internal structure of power generator.Wherein, sleeve 8 is sleeved on outside elastic component 6, and one end and bottom of sleeve 8
7 phases of seat are fixed, and the other end is fixed with 9 phase of ring seat, and the top of top cover 1 can pass through ring seat 9, so that top cover 1 can be pressed down.
Ring seat 9 is used for the gap being connected between top cover 1 and sleeve 8, further to play a protective role to vibration generating device, while can
Top cover 1 is avoided to fall off.
The vibration generating device that present embodiment provides can be welding, spiral shell between sleeve 8 and pedestal 7 or ring seat 9
It the modes such as connects, be clamped mutually to fix, in actual design, for the ease of the dismounting to vibration generating device and then maintain easily, it can
Ring seat 9, sleeve 8,7 three of pedestal are mutually fixed in such a way that selection is spirally connected.The material of ring seat 9 and sleeve 8 to select magnetic conductivity high
Material is made as benefit, such as mild steel.
The vibration generating device that present embodiment provides, when pressing top cover 1, lower permanent magnet 5 can be with 7 phase of pedestal
Mutually extruding, percussion are closed magnetic circuit, to make magnetostrictor 4 under the action of being pressed because counter magnetostriction effect is in coil 3
Interior generation magnetic field increment, and according to Faraday's electromagnetic induction law, electromotive force will be generated in coil 3, which presses magnetic hair
Electricity.In order to when lower permanent magnet 5 squeezes magnetic circuit closure with pedestal 7, avoid Distribution of Magnetic Field occur the magnetically saturated phenomenon in part, to
Magnetic force is caused to reduce, decrease in power generation efficiency can enable lower permanent magnet 5 to fit completely with the pedestal 7, such as in design
The area of lower 5 bottom of permanent magnet is identical as the area that can be contacted of pedestal 7.
Further, in order to which shadow is not caused to the electricity collection of coil 3 in the magnetic field for generating upper permanent magnet 2 and lower permanent magnet 5
It rings, insulating layer can be respectively provided in the upper surface of coil 3 and lower end surface, i.e., between upper permanent magnet 2 and coil 3 and lower permanent magnetism
It is provided with insulating layer between body 5 and coil 3, which can be adhesive plaster or other can play the insulation of equivalent effect
Material.
Present embodiment provide vibration generating device, between pedestal 7 and elastic component 6 can for clamping, welding or
In order to further facilitate the dismounting of the two annular groove can be arranged on pedestal 7 in person's others connection type, the annular groove and elasticity
The bottom of part 6 matches, and is fixed elastic component 6 and 7 phase of pedestal by annular groove.
The vibration generating device that present embodiment provides, in actual design, in order to further increase power generation effect
Rate, upper permanent magnet 2 and lower permanent magnet 5 can choose the big material of magnetic energy product to make, such as neodymium iron boron material.It can choose
The materials such as copper, aluminium, aluminium alloy make coil 3, to improve the efficiency that coil 3 collects electric energy.Meanwhile in order to make answering for the present apparatus
With range further expansion, the material that can choose response band at 1-104 hertz makes magnetostrictor 4, to meet light
Bear down on one lid 1, i.e. vibrate it is smaller when the present apparatus normal work, vibration of such as marking time；At this point, the present apparatus can be installed on it is crowded
Square, park or the big place of other density of stream of people, for the laying on such place floor, with the vibration that will mark time as far as possible
It is converted into electric energy.
Further, when actual design, can by way of through-hole is set on sleeve 8, electric energy that coil 3 is generated with
Extraneous electrical equipment is connected, and electric energy is conveyed outward, so that the present apparatus can normally power outward；Or the through-hole is set
It sets in other positions such as pedestal.
The material of the vibration generating device that present embodiment provides, magnetostrictor 4 can stretch for rare-earth super-magnetic cause
Compression material, such as Terfenol-D stick.The deformation of rare earth ultra-magnetostriction material Terfenol-D is bigger than general magnetic material, with pressure
Electric material is compared with traditional magnetostriction materials has the advantage that saturation magnetostriction should become larger, and energy density is high, magnetomechanical
The tool coefficient of coup is big, and the velocity of sound is low.
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention.
Various modifications to these embodiments will be readily apparent to those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, of the invention
It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one
The widest scope of cause.
Claims (10)
1. a kind of vibration generating device, which is characterized in that including Power Generation Section and support portion；
The Power Generation Section includes being sequentially overlapped fixed top cover (1), upper permanent magnet (2), the magnetostrictor for being wound with coil (3)
(4), lower permanent magnet (5), the coil (3) is for collecting electric energy；
The support portion includes elastic component (6) and pedestal (7)；The elastic component (6) is sleeved on outside the Power Generation Section, and the bullet
One end of property part (6) is mutually fixed with the pedestal (7), and the other end is connected with the top cover (1), is used to support the power generation
Portion；When pressing top cover (1), the lower permanent magnet (5) can be made to squeeze and tap the pedestal (7).
2. vibration generating device according to claim 1, which is characterized in that it further include sleeve (8) and ring seat (9), it is described
Sleeve (8) is sleeved on the elastic component (6) outside, and one end of the sleeve (8) is mutually fixed with the pedestal (7), the other end with
The ring seat (9) is mutually fixed, and the top of the top cover (1) can pass through the ring seat (9).
3. vibration generating device according to claim 2, which is characterized in that the sleeve (8) is spiral shell with the pedestal (7)
It connects.
4. vibration generating device according to claim 2, which is characterized in that the sleeve (8) is spiral shell with the ring seat (9)
It connects.
5. vibration generating device according to claim 1, which is characterized in that when the lower permanent magnet (5) squeezes the bottom
When seat (7), the lower permanent magnet (5) can fit with the pedestal (7).
6. vibration generating device according to claim 1, which is characterized in that the coil (3) and the upper permanent magnet (2)
Between be equipped with insulating layer.
7. vibration generating device according to claim 1, which is characterized in that the coil (3) and the lower permanent magnet (5)
Between be equipped with insulating layer.
8. vibration generating device according to claim 1, which is characterized in that the pedestal (7) is equipped with annular groove, the elasticity
Part (6) is mutually fixed by the annular groove with the pedestal (7).
9. vibration generating device according to claim 1, which is characterized in that the material of the coil (3) is copper, or is
Aluminium, or be copper alloy.
10. vibration generating device according to claim 1, which is characterized in that the material of the magnetostrictor (4) is dilute
Native giant magnetostrictive material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710743424.0A CN107492999B (en) | 2017-08-25 | 2017-08-25 | A kind of vibration generating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710743424.0A CN107492999B (en) | 2017-08-25 | 2017-08-25 | A kind of vibration generating device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107492999A CN107492999A (en) | 2017-12-19 |
| CN107492999B true CN107492999B (en) | 2019-09-06 |
Family
ID=60650996
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710743424.0A Active CN107492999B (en) | 2017-08-25 | 2017-08-25 | A kind of vibration generating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107492999B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108306549A (en) * | 2018-01-31 | 2018-07-20 | 广东工业大学 | A kind of magnetostriction energy collecting device |
| CN108199621A (en) * | 2018-01-31 | 2018-06-22 | 广东工业大学 | A kind of magnetostriction energy collecting device |
| WO2019171793A1 (en) * | 2018-03-05 | 2019-09-12 | オムロン株式会社 | Switch, display holding method, and display holding program |
| CN109026508A (en) * | 2018-08-14 | 2018-12-18 | 沈阳工业大学 | A kind of magnetostriction thin slice float-type wave vibration power generator |
| CN109751555A (en) * | 2019-02-01 | 2019-05-14 | 泉州动态科技有限公司 | A kind of oscillatory type Self-generating LED lamp |
| CN110193169B (en) * | 2019-04-01 | 2021-02-23 | 沈阳工业大学 | Body-building footboard with vibration is collected and power generation function |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5184037A (en) * | 1990-02-23 | 1993-02-02 | Kabushiki Kaisha Toshiba | Magnetostriction type actuator |
| JPH0975847A (en) * | 1995-09-13 | 1997-03-25 | Toshiba Corp | Magnetostrictive vibrator |
| SE524369C2 (en) * | 2002-08-09 | 2004-07-27 | Mecel Ab | Method for increasing efficiency when using an engine and system unit |
| JP5503264B2 (en) * | 2009-11-24 | 2014-05-28 | 株式会社竹中工務店 | Power generator |
| CN104092347B (en) * | 2014-07-11 | 2016-06-08 | 沈阳工业大学 | A kind of magnetostriction vibration power generation assembly |
-
2017
- 2017-08-25 CN CN201710743424.0A patent/CN107492999B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN107492999A (en) | 2017-12-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107492999B (en) | A kind of vibration generating device | |
| CN105680720B (en) | The multi-direction wideband kinetic energy collector of multiple degrees of freedom piezoelectricity electromagnetism combined type | |
| CN105871245B (en) | A kind of beam type composite nano generator | |
| CN108023501A (en) | A kind of combined-type magnetic suspension wideband vibration energy collector using structure for amplifying | |
| CN204103733U (en) | A kind of hand presses self-generating device | |
| CN104883026B (en) | Roll vibrator linear vibration energy collecting device | |
| CN105958865B (en) | Piezoelectricity electromagnetism prisoner based on isosceles trapezoid cantilever beam can device | |
| CN113746376A (en) | Piezoelectric and electromagnetic composite energy annular capture device | |
| CN103280874A (en) | Device using movement of basketball to generate electricity | |
| CN201263119Y (en) | High-efficiency straightline generator | |
| CN104734453A (en) | Low-frequency permanent magnet vibration generator | |
| CN203747618U (en) | Electromagnetic type vibration power-generating battery | |
| TWM306423U (en) | Multi-magnetic-poles power generating apparatus | |
| CN209016944U (en) | A kind of electromagnetism and piezoelectricity mixing vibration generator | |
| CN202260957U (en) | Self-charging device | |
| CN106877740A (en) | Combined type energy accumulator | |
| CN204906158U (en) | Energy gatherer | |
| CN203967948U (en) | A kind of electromagnetic type vibrating power-generation battery | |
| CN105976972A (en) | Frameless multi-series coil | |
| CN107294342B (en) | Vibration generating device | |
| CN204538936U (en) | A kind of low frequency permanent magnetic vibration generator | |
| CN205430026U (en) | Vibration -type magnetoelectric generator | |
| CN102832679B (en) | Energy conversion device and mobile terminal | |
| CN201230225Y (en) | Electricity generation necklace | |
| CN209571869U (en) | A kind of terminal device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |