CN107294341A - A kind of portable vibration energy harvester - Google Patents
A kind of portable vibration energy harvester Download PDFInfo
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- CN107294341A CN107294341A CN201710709983.XA CN201710709983A CN107294341A CN 107294341 A CN107294341 A CN 107294341A CN 201710709983 A CN201710709983 A CN 201710709983A CN 107294341 A CN107294341 A CN 107294341A
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- framework
- energy harvester
- vibration energy
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- 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
- H02K35/02—Generators with reciprocating, oscillating or vibrating coil system, magnet, armature or other part of the magnetic circuit with moving magnets and stationary coil systems
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- Apparatuses For Generation Of Mechanical Vibrations (AREA)
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Abstract
The present invention describes a kind of portable vibration energy harvester, including framework, copper coil, group of magnets, two angle adjustment wheels；Copper coil is attached on the inside of framework respectively；Two left regulation wheels are fixed on the two ends of the second magnet；First magnet and the 3rd magnet adsorb the periphery for being arranged on the second magnet by magnetic attraction respectively；First magnet is fixed on the edge of the second magnet；Due to the repulsion between the first magnet and the second magnet, the two will not come in contact.The present invention constitutes a nonlinear spring using the repulsion between the first magnet and the 3rd magnet, it can be moved reciprocatingly when the 3rd magnet is by dynamic excitation along the periphery of the second magnet, so as to cause the change of magnetic flux in coil, motion can be converted into electric energy, the collection to vibrational energy is realized.
Description
Technical field
The present invention relates to the technical field of energy collecting device, and in particular to a kind of portable energy collector, more particularly to
A kind of portable energy collector that the motion of human body and moving object can be responded.
Background technology
With to energy demand be continuously increased and conventional batteries limitation, energy collection technology turn into solve the energy ask
One direction of topic.The energy that be will be dispersed in by energy collection technology in environment is converted to the available energy.Such as, pass through
The mechanical energy being subject to is converted to electric energy by piezo-electric effect, is converted light energy into electric energy by opto-electronic conversion effect, is imitated by thermoelectricity
Unnecessary heat energy should be converted to electric energy.In these energy that can be utilized, divided extensively with the mechanical energy that vibration mode is present
It is distributed in environment.The vibration of certain frequency, such as train, automobile, building and bridge, and the day of people is all presented in many objects
Often activity can also produce certain vibration.If these vibrational energies are converted into available electric energy, it can be carried for electronic device
Energy supply amount.The working method of the use of energy harvester based on oscillatory type mainly has electromagnetic type, electrostatic and piezoelectric type.Piezoelectricity
Formula energy harvester has the characteristics of output voltage is high, working frequency is high；Electrostatic energy harvester has high-power output special
Point；Electromagnetic energy collector has output current big but the less feature of voltage.The energy based on vibration most of at present are received
Storage can only be responded to the vibration of single direction, and need higher working frequency, can only operate in specific occasion,
Inconvenience is mobile, carry.
The content of the invention
In order to solve the above-mentioned technical problem, the invention provides a kind of portable energy collector, it can ring as needed
Vibration both vertically as well as horizontally is answered, vibrational energy effectively can be converted into electric energy, can carried with.
Realize the technical scheme is that：A kind of portable vibration energy harvester, including framework, coil and magnet
Group, group of magnets is arranged in framework, group of magnets relative coil movement, and the group of magnets includes the first magnet, the second magnet and the
Three magnet, the outline of described the first magnet, the second magnet and the 3rd magnet is rounded, and the second magnet is fixedly installed on framework
Interior, the first magnet and the 3rd magnet are respectively by magnetic attraction absorption in the periphery of the second magnet, second magnet and first
The direction of magnetization of magnet and the 3rd magnet is on the contrary, be provided with gap, described coil between the 3rd magnet and the side plate inwall of framework
It is arranged on the side plate inwall of framework.
The relative position of first magnet and the second magnet keeps constant.
The coil sets at least to 2, is connected between coil by the way of series connection.
Described coil is in annular, and the motion of the area that described coil outline is surrounded and the 3rd magnet is covered
Area it is consistent.
The both ends of the surface of second magnet are respectively provided with a left regulation wheel in a gear shape, and framework is provided with to be adjusted with the tooth form
The scallop being engaged is taken turns, left regulation wheel adjusts the relative position of the first magnet and the second magnet and framework.
Second magnet is in annular, and framework and the second magnet are provided with circular port, and magnetic conduction bolt does not pass through the second magnetic
Circular port on iron and framework fixes the second magnet.
First magnet, the second magnet and the 3rd magnet are made of neodymium iron boron.
The coil has 320 circles, and its thickness is 3mm, and internal diameter is 2mm, and external diameter is 25mm, and line footpath is 0.3mm.
A diameter of 5mm of the first described magnet, be highly 10mm, the external diameter of the second magnet be 20mm, internal diameter be 10mm,
Highly it is 10mm, a diameter of 20mm, the height 10mm of the 3rd magnet.
The external diameter of the coil is more than the diameter of the 3rd magnet.
The portable energy collector can be mainly used in response vertical direction and vibrate and carry out in vertically-mounted during work
Collection of energy；It can also be mainly used in level of response direction in being horizontally mounted and vibrate and carry out collection of energy.The portable energy
When collector is acted on by the vibrational excitation of a direction, the 3rd described magnet can start fortune under this vibrational excitation effect
Dynamic, because the 3rd magnet and the second magnet magnetization are in opposite direction, have magnetic attraction effect between them, therefore the 3rd magnet is second
Magnet excircle configuration is rolled, simultaneously as the direction of magnetization of the 3rd magnet and the first magnet is identical, the 3rd magnet and the first magnet
Between there is magnetic repulsion, the repulsive force allows the 3rd magnet to move back and forth.When the 3rd magnet moves back and forth, if
Put has relative motion in the coil of side plate inwall and the magnetic field of the 3rd magnet, there is cutting magnetic line phenomenon, according to faraday
The law of electromagnetic induction, can produce induced electromotive force in coil（Induced voltage）.If connected at the output line two ends of coil negative
Carry, such as diode lights then can directly be powered and light；, can be to sense if coil output line two ends connect storage circuit
Voltage is answered to be collected, store, similar electromagnetic type kinetic energy collecting battery.The sky constituted due to the 3rd magnet in two side plates
It is interior to move, gap is designed between the 3rd magnet both ends of the surface and side plate inwall, can be so respectively provided with the inwall of two side plates
Connected between induction coil, the coil described in two by the way of series connection, to increase induced voltage output amplitude.
The relative position of first magnet and the second magnet keeps constant, so as to limit the moving region of the 3rd magnet, together
When can also strengthen energy collecting effect.Because the direction of magnetization of the first magnet and the 3rd magnet is identical, therefore when the 3rd magnet exists
Around the motion of the second magnet excircle under extraneous vibration effect, when the 3rd magnet is close to the first magnet, it is subject to and gradually increases
Magnetic repulsion, this repulsive force on the one hand can make the 3rd magnet slow down and counter motion, on the other hand can make the first magnet move
It is dynamic, so can fall the part kinetic energy dissipation of the 3rd magnet.If the relative position of the first magnet and the second magnet consolidated
It is fixed, then the magnetic repulsion of the first magnet and the 3rd magnet（It also is understood as magnetic potential energy）It can be entirely used for making the 3rd magnet anti-
To motion, the response efficiency that the 3rd magnet vibrates to external world can be increased, the 3rd magnet is shown as along the past of the second magnet periphery
The change frequency of magnetic flux in the number of times increase moved again, such coil increases, and improves electromagnetic induction voltage.
The relative position of first magnet and the second magnet and framework can be adjusted in circumferencial direction, according to different use rings
The relative position of the magnet of border occasion first and the second magnet and framework, so as to reach the purpose for collecting more multi-energy.Such as environment
Vibration can now adjust the first magnet and the second magnet in the position of circumferencial direction so that the 3rd magnetic based on vertical direction
Iron axis is in horizontal plane as far as possible.
Coil is in integrally partial circle shape, the area that coil outline is surrounded and the motion covering of the 3rd described magnet
Area is consistent.Because the excircle of the second magnet is rounded, the 3rd magnet excircle is rounded, so the 3rd magnet is around second
Magnet excircle moves the part that covered region is annulus, corresponding with this annulus area, set in side plate inwall
Coil, can better profit from electromagnetic induction.
The both ends of the surface of second magnet are respectively provided with a left regulation wheel in a gear shape, correspondingly, are provided with the biside plate of framework
The scallop being engaged with the tooth form left regulation wheel, according to use occasion the need for, can pass through tooth form left regulation wheel adjust the first magnetic
The relative position of iron and the second magnet and framework.This regulative mode at least adjusts the angle angle of two neighboring tooth, root every time
The quantity of sawteeth determines adjustable minimum angles.
Second magnet is in annular, correspondingly, in the biside plate circular port of framework, not magnetic conduction bolt through the second magnet and
Hole on framework biside plate, the magnet of both sides board clamping second of framework is made using not magnetic conduction bolt, nut, unclamps bolt, nut
The first magnet and the second magnet and framework relative position can be adjusted.Because the pretightning force using bolt is by the second magnet and two
Side plate is fastened, therefore can continuously adjust the second magnet and the first magnet in the angle position of circumferencial direction when unclamping bolt
Put.
Certainly, the first magnet and the second magnet can also use other forms, such as bullet in the regulative mode of circumferencial direction
The positioning form of spring and card bead.
First magnet, the second magnet and the 3rd magnet are made of neodymium iron boron, and ndfeb magnet is that have so far most
The permanent magnet of strong magnetic force, using the teaching of the invention it is possible to provide stronger magnetic field intensity.
The beneficial effects of the invention are as follows：Make the 3rd magnet absorption second using the attraction of the second magnet and the 3rd magnet
It is therebetween linear contact lay, the resistance being subject to during three magnet movements is smaller, and energy loss is smaller on magnet, and can be fast
Speed response extraneous vibration.First magnet is fixed on the edge of the second magnet, there is repulsive force between the second magnet and the 3rd magnet,
Due to the particularity of structure type, the 3rd magnet keeps stress balance in specific position, when the 3rd magnet is activated, the
Three magnet can be moved back and forth in specific region, so as to cause the magnetic flux in coil to change, so in induction coil
Induced electromotive force is produced due to magnetic flux change, mechanical energy is converted into electric energy.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the accompanying drawing used required in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is the structural representation of 1 explosive view of embodiment 1.
Fig. 2 is the structural representation of 1 explosive view of embodiment 2.
Fig. 3 is the front view of embodiment 1.
Fig. 4 is the structural representation of explosive view 4 of embodiment 2.
Fig. 5 is the front view of embodiment 2.
Fig. 6 is that universal meter of the present invention detection obtains output voltage.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not paid
Embodiment, belongs to the scope of protection of the invention.
Embodiment 1
As Figure 1-3, a kind of portable vibration energy harvester, including framework 1, coil 2, left regulation wheel 3, group of magnets 4 is described
Group of magnets includes the first magnet 41, the second magnet 42 and the 3rd magnet 43, described the first magnet 41, the second magnet 42 and the 3rd
The outline of magnet 43 is rounded, and the second magnet 42 is fixedly installed in framework, the first magnet 41 and the 3rd magnet 43 respectively according to
The periphery for being arranged on the second magnet 42 is adsorbed by magnetic attraction, the magnet 41 of the second magnet 42 and first and the 3rd magnet 43
The direction of magnetization is on the contrary, be provided with gap between the both ends of the surface of the 3rd magnet 43 and the biside plate inwall of framework 1, described coil 2 is set
Put side plate interior sides wall in framework 1 and corresponding in the moving region of the 3rd magnet 43.Along the movement locus of the 3rd magnet 43
Multiple coils are arranged, coil 2 is connected in the form of series connection.When the 3rd magnet 43 is moved around the second magnet 42, in coil 2
Magnetic flux can change, and then have voltage generation at coil two ends, so be produced in induction coil due to magnetic flux change
Raw induced electromotive force, electric energy is converted into by mechanical energy.
The two ends of second magnet 42 are provided with the left regulation wheel 3 of tooth form, correspondingly, and 3 with the tooth form are provided with the biside plate of framework 1
The scallop 31 that left regulation wheel is engaged, the first magnet 41 and the relative position with framework of the second magnet 42 can be adjusted as needed
Put, such as the vibration in order to sufficiently respond to certain direction, which can adjust the first magnet and the position of the second magnet, makes the second magnet and
The line of centres of three magnets is perpendicularly to the direction.
Preferably, in order that collection efficiency is higher, the external diameter of coil 2 is slightly larger than the diameter of the 3rd magnet 43.
In use, being responded in order to the vibration to vertical direction, the end face of three magnet is perpendicular to horizontal plane.
Excircle of the 3rd magnet 43 along the second magnet 42 pumps in the presence of extraneous vertical direction vibration, the 3rd magnet
Distribution of Magnetic Field also move therewith so that produce relative motion between the magnetic field of coil and the 3rd magnet 43, produce induced electromotive force.
If what extraneous vibration was horizontally oriented, the end face of three magnet is so conducive to the sound of the 3rd magnet 43 parallel to horizontal plane
Extraneous vibration is answered, and is moved along the excircle of the second magnet 42.If extraneous vibration is conjunction vertically and horizontally
Into vibration, now the end face of three magnet need to be perpendicular to horizontal plane, while needing to adjust the first magnet 41 and the second magnet 42
Circumferential position, makes the line of centres of the 3rd magnet and the second magnet be more than 0 ° with the angle of dynamic excitation power and is less than 180 °.
The present invention constitutes a nonlinear spring-quality system using the repulsive force between magnet, and the second magnet is past
The change of the magnetic flux of induction coil can be caused when moving again, and then induced electromotive force is produced in coil, stretched out by coil
Lead is connected to electric power management circuit collection.
Embodiment 2
As shown in Figures 4 and 5, a kind of portable vibration energy harvester, including framework 1, coil 2, group of magnets 4, group of magnets 4 is set
In framework 1, the opposed coil 2 of group of magnets 4 can include the first magnet 41, the second magnet 42 and the 3rd magnet with moveable magnet group
43；The outline of first magnet 41, the second magnet 42 and the 3rd magnet 43 is rounded, and the second magnet 42 is annulus magnet；
First magnet 41 and the 3rd magnet 43 adsorb the periphery for being arranged on the second magnet 42 by magnetic attraction respectively；Second magnet 42 with
The direction of magnetization of first magnet 41 and the 3rd magnet 43 is on the contrary, between the both ends of the surface of the 3rd magnet 43 and the biside plate inwall of framework
Provided with gap；Coil is arranged on the side plate interior sides wall of framework and corresponding in the range of movement of the 3rd magnet 43.Along the 3rd magnetic
The movement locus of iron 43 arranges multiple coils, and coil is connected in the form of connecting.When the 3rd magnet 43 is transported around the second magnet 42
When dynamic, the magnetic flux in coil can change, and then have voltage generation at coil two ends, so due to magnetic in induction coil
Variations of flux and produce induced electromotive force, mechanical energy is converted into electric energy.
Magnetic conduction bolt does not coordinate not the second magnetic of magnetic conduction nut clamping through hole corresponding on the second magnet 42 and framework
Iron 42 is so as to realize that the first magnet 41 and the second magnet 42 are constant relative to the position of framework, if necessary to the first magnet 41 of regulation
Nut can be unclamped with the position of the second magnet 42, the first magnet 41 and the second magnet 42 is then rotated to the position needed.
Other structures and the course of work and embodiment 1 are identical.
The present invention constitutes a nonlinear spring-quality system, the second magnet 42 using the repulsive force between magnet
The change of the magnetic flux of induction coil can be caused during reciprocating motion, and then induced electromotive force is produced in coil, stretched out by coil
Lead be connected to electric power management circuit collection.
Embodiment 3
A kind of portable vibration energy harvester, including framework, coil and group of magnets, the group of magnets include the first magnet 41,
Second magnet 42 and the 3rd magnet 43, the first described magnet 41 and the 3rd magnet 43 are cylinder-shaped magnet, and the second magnet is ring
Shape magnet；A diameter of 5mm of the first described magnet is highly 10mm, and the external diameter of the second magnet 42 is 20mm, and internal diameter is 10mm,
Highly be 10mm, a diameter of 20mm of the 3rd magnet, height 10mm, wherein the first magnet 41 and the second magnet 42 use the trade mark for
N35 ndfeb magnet, the 3rd magnet 43 uses the trade mark for N52 ndfeb magnet.The biside plate of described framework is provided with straight
Footpath is 10mm circular hole, and a plastic bolt, will using the pretightning force of bolt through hole on the second magnet 42 and framework biside plate
Second magnet 42 and two side plates are fastened, and realize that the first magnet 41 and the second magnet 42 are constant relative to the position of framework.It is described
Portable vibration energy collecting device overall length be 65mm, beam overall is 60mm, and thickness is 27mm；The first described magnet 41 and
Three magnet 43 adsorb the periphery for being arranged on the second magnet 42 by magnetic attraction respectively；Described first time magnet is solid using glue
The periphery of the second magnet 42 is scheduled on, the relative position holding of the first magnet 41 and the second magnet 42 is constant, so as to limit the 3rd
The moving region of magnet 43；Described energy collecting device horizontal positioned, the circle of the first magnet and the second magnet 42 is adjusted around bolt
All positions, make the 3rd magnet 43 when static positioned at the midpoint of its range of movement；The magnet 41 of second magnet 42 and first and
The direction of magnetization of 3rd magnet 43 is on the contrary, be provided with gap between the both ends of the surface of the 3rd magnet 43 and the biside plate inwall of framework.Should
When portable energy collector is acted on by the vibrational excitation of a direction, the 3rd described magnet 43 can be made in this vibrational excitation
Lower setting in motion is used, has magnetic attraction effect because the 3rd magnet 43 and the direction of magnetization of the second magnet 42 are opposite, between them, therefore
3rd magnet 43 is rolled in the excircle configuration of the second magnet 42, simultaneously as the direction of magnetization of the 3rd magnet 43 and the first magnet 41
It is identical, there is magnetic repulsion between the 3rd magnet 43 and the first magnet 41, when the 3rd magnet 43 is close to the first magnet 41, Bian Huishou
To the magnetic repulsion gradually increased, on the one hand this repulsive force can make the 3rd magnet 43 slow down and counter motion, and the repulsive force makes
3rd magnet 43 can move back and forth.Because the 3rd magnet 43 is moved in the space that two side plates are constituted, the 3rd magnet
All this has gap between 43 both ends of the surface and side plate inwall, so can be respectively provided with induction coil in the inwall of two side plates.
Coil described in the present embodiment is arranged on the side plate interior sides wall of framework, three coils, this 3 is arranged on each side wall
Coil is located at two-end-point and the centre position of the range of movement of the 3rd magnet 43 respectively；Each coil has 320 circles, and its thickness is
3mm, internal diameter is 2mm, and external diameter is 25mm, and line footpath is 0.3mm；In order to increase the output amplitude of induced voltage, 6 coils are using string
The mode of connection is connected, and total impedance is 21.4 ohm.The portable energy collector can be mainly used in vertically-mounted during work
Response vertical direction vibrates and carries out collection of energy；It can also be mainly used in the vibration of level of response direction in being horizontally mounted and go forward side by side
Row collection of energy.When the 3rd magnet 43 moves back and forth, the coil of side plate inwall and the magnetic of the 3rd magnet 43 are arranged on
There is relative motion field, there is cutting magnetic line phenomenon, and according to Faraday's electromagnetic induction law, induction electric can be produced in coil
Gesture（Induced voltage）.If connecting load at the output line two ends of coil, such as diode lights then can be directly powered a little
It is bright；If coil output line two ends connect storage circuit, induced voltage can be collected, stored, a similar electromagnetic type
Kinetic energy collecting battery.As shown in fig. 6, the hand-held portable energy collector is rocked in the horizontal plane, the frequency rocked is from 2-
12hz is tested, and can obtain considerable voltage output, when hand wobble frequency is near 6Hz, utilizes universal meter（Ji Shi
Sharp 2000E）The virtual value that the energy collecting device exports induced voltage is have recorded, induced voltage maximum can reach 2.22V.
Preferably, the present embodiment uses scope to expand, bolt, the first magnet of regulation and the second magnet can be unclamped
Relative position, and then adjust the 3rd magnet 43 position, energy collecting device is collected into more energy.
Embodiment 4
A kind of portable vibration energy harvester, including framework, coil and group of magnets, the group of magnets include the first magnet 41,
Second magnet 42 and the 3rd magnet 43, the first described magnet 41 and the 3rd magnet 43 are cylinder-shaped magnet, and the second magnet is ring
Shape magnet；A diameter of 5mm of the first described magnet is highly 10mm, and the external diameter of the second magnet 42 is 20mm, and internal diameter is 10mm,
Highly be 10mm, a diameter of 20mm of the 3rd magnet, height 10mm, wherein the first magnet 41 and the second magnet 42 use the trade mark for
N35 ndfeb magnet, the 3rd magnet 43 uses the trade mark for N52 ndfeb magnet.The biside plate of described framework is provided with straight
Footpath is 10mm circular hole, and a plastic bolt, will using the pretightning force of bolt through hole on the second magnet 42 and framework biside plate
Second magnet 42 and two side plates are fastened, and realize that the first magnet 41 and the second magnet 42 are constant relative to the position of framework.It is described
Portable vibration energy collecting device overall length be 65mm, beam overall is 60mm, and thickness is 27mm；The first described magnet 41 and
Three magnet 43 adsorb the periphery for being arranged on the second magnet 42 by magnetic attraction respectively；Described first time magnet is solid using glue
The periphery of the second magnet 42 is scheduled on, the relative position holding of the first magnet and the second magnet is constant, so as to limit the 3rd magnet
43 moving region；Described energy collecting device horizontal positioned, the circumference position of the first magnet and the second magnet 42 is adjusted around bolt
Put, make the 3rd magnet 43 when static positioned at the midpoint of its range of movement；The magnet 41 and the 3rd of second magnet 42 and first
The direction of magnetization of magnet 43 is on the contrary, be provided with gap between the both ends of the surface of the 3rd magnet 43 and the biside plate inwall of framework.This is portable
When formula energy harvester is acted on by the vibrational excitation of a direction, the 3rd described magnet 43 can be under this vibrational excitation effect
Setting in motion, has magnetic attraction effect, therefore the 3rd because the 3rd magnet 43 and the direction of magnetization of the second magnet 42 are opposite, between them
Magnet 43 is rolled in the excircle configuration of the second magnet 42, simultaneously as the 3rd magnet 43 is identical with the direction of magnetization of the first magnet 41,
There is magnetic repulsion between 3rd magnet 43 and the first magnet 41, when the 3rd magnet 43 is close to the first magnet 41, be subject to by
On the one hand cumulative big magnetic repulsion, this repulsive force can make the 3rd magnet 43 slow down and counter motion, and the repulsive force makes the 3rd
Magnet 43 can move back and forth.Because the 3rd magnet 43 is moved in the space that two side plates are constituted, the 3rd 43 liang of magnet
All this has gap between end face and side plate inwall, so can be respectively provided with induction coil in the inwall of two side plates.
Coil described in the present embodiment is arranged on the side plate interior sides wall of framework, 4 coils, this 4 is arranged on each side wall
Coil is in integrally partial circle shape, the area that coil outline is surrounded and the area phase of the motion covering of the 3rd described magnet 43
Unanimously；Each coil has 320 circles, and its thickness is 3mm, and internal diameter is 2mm, and external diameter is 25mm, and line footpath is 0.3mm；In order to increase
The output amplitude of induced voltage, 8 coils are connected by the way of series connection, and total impedance is 28.6 ohm.This is portable during work
Energy harvester can be mainly used in response vertical direction and vibrate and carry out collection of energy in vertically-mounted；It can also be in level
Install, be mainly used in level of response direction and vibrate and carry out collection of energy.When the 3rd magnet 43 moves back and forth, it is arranged on
There is relative motion in the magnetic field of the coil of side plate inwall and the 3rd magnet 43, there is cutting magnetic line phenomenon, according to faraday's electricity
Law of magnetic induction, can produce induced electromotive force in coil（Induced voltage）.If connecting load at the output line two ends of coil,
Such as diode lights, then can directly be powered and light；If coil output line two ends connect storage circuit, can be to induced electricity
Pressure is collected, stored, similar electromagnetic type kinetic energy collecting battery.As shown in fig. 6, the hand-held portable energy collector exists
Rocked in horizontal plane, the frequency rocked is tested from 2-12hz, can obtain considerable voltage output, when hand wobble frequency
During near 6Hz, universal meter is utilized（Keithley 2000E）The virtual value that the energy collecting device exports induced voltage is have recorded, sense
Voltage max is answered to reach 2.22V.
Preferably, the present embodiment uses scope to expand, bolt, the first magnet of regulation and the second magnet can be unclamped
Relative position, and then adjust the 3rd magnet 43 position, energy collecting device is collected into more energy.
Embodiment 5
A kind of portable vibration energy harvester, including framework, coil and group of magnets, the group of magnets include the first magnet 41,
Second magnet 42 and the 3rd magnet 43, described the first magnet 41, the second magnet 42 and the 3rd magnet 43 are cylinder-shaped magnet；Institute
The a diameter of 5mm for the first magnet stated is highly 10mm, a diameter of 20mm of the second magnet 42, is highly 10mm, the 3rd magnet
A diameter of 20mm, height 10mm, wherein the first magnet 41 and the second magnet 42 use the trade mark for N35 ndfeb magnet,
Three magnet 43 use the trade mark for N52 ndfeb magnet.The biside plate of described framework is provided with the corresponding tooth of tooth form left regulation wheel
Shape hole；Described tooth form left regulation wheel is fixed and 12 teeth is uniformly distributed in the both sides of the second magnet 42, tooth form left regulation wheel, a diameter of
20mm；Coordinate the scallop on biside plate on framework, realize the first magnet 41 and the second magnet 42 relative to framework position not
Become, the first magnet 41 and the relative position with framework of the second magnet 42 can also be adjusted as needed.Described portable vibration
The overall length of energy collecting device is 65mm, and beam overall is 60mm, and thickness is 20mm；The first described magnet 41 and the 3rd magnet 43 are distinguished
The periphery for being arranged on the second magnet 42 is adsorbed by magnetic attraction；Described first time magnet is fixed on the second magnet using glue
The relative position of 42 periphery, the first magnet and the second magnet keeps constant, so as to limit the moving region of the 3rd magnet 43；
Described energy collecting device horizontal positioned, the circumferential position of the first magnet and the second magnet 42 is adjusted using tooth form left regulation wheel, is made
3rd magnet 43 is when static positioned at the midpoint of its range of movement；The magnet 41 of second magnet 42 and first and the 3rd magnet 43
The direction of magnetization on the contrary, between the both ends of the surface of the 3rd magnet 43 and the biside plate inwall of framework be provided with gap.The portable energy
When collector is acted on by the vibrational excitation of a direction, the 3rd described magnet 43 can start fortune under this vibrational excitation effect
It is dynamic, because the 3rd magnet 43 and the direction of magnetization of the second magnet 42 are opposite, have magnetic attraction effect, therefore the 3rd magnet 43 between them
Rolled in the excircle configuration of the second magnet 42, simultaneously as the 3rd magnet 43 is identical with the direction of magnetization of the first magnet 41, the 3rd magnetic
There is magnetic repulsion between the magnet 41 of iron 43 and first, when the 3rd magnet 43 is close to the first magnet 41, is subject to and gradually increases
Magnetic repulsion, on the one hand this repulsive force can make the 3rd magnet 43 slow down and counter motion, and the repulsive force makes the 3rd magnet 43
It can move back and forth.Because the 3rd magnet 43 is moved in the space that two side plates are constituted, the both ends of the surface of the 3rd magnet 43 with
All this has gap between side plate inwall, so can be respectively provided with induction coil in the inwall of two side plates.
Coil described in the present embodiment is arranged on the side plate interior sides wall of framework, three coils, this 3 is arranged on each side wall
Coil is located at two-end-point and the centre position of the range of movement of the 3rd magnet 43 respectively；Each coil has 320 circles, and its thickness is
3mm, internal diameter is 2mm, and external diameter is 25mm, and line footpath is 0.3mm；In order to increase the output amplitude of induced voltage, 6 coils are using string
The mode of connection is connected, and total impedance is 21.4 ohm.The portable energy collector can be mainly used in vertically-mounted during work
Response vertical direction vibrates and carries out collection of energy；It can also be mainly used in the vibration of level of response direction in being horizontally mounted and go forward side by side
Row collection of energy.When the 3rd magnet 43 moves back and forth, the coil of side plate inwall and the magnetic of the 3rd magnet 43 are arranged on
There is relative motion field, there is cutting magnetic line phenomenon, and according to Faraday's electromagnetic induction law, induction electric can be produced in coil
Gesture（Induced voltage）.If connecting load at the output line two ends of coil, such as diode lights then can be directly powered a little
It is bright；If coil output line two ends connect storage circuit, induced voltage can be collected, stored, a similar electromagnetic type
Kinetic energy collecting battery.As shown in fig. 6, the hand-held portable energy collector is rocked in the horizontal plane, the frequency rocked is from 2-
12hz is tested, and can obtain considerable voltage output, when hand wobble frequency is near 6Hz, utilizes universal meter
（KEITHLEY 2000E）The virtual value that the energy collecting device exports induced voltage is have recorded, induced voltage maximum can reach
2.22V。
Preferably, the present embodiment uses scope to expand, it is possible to use tooth form left regulation wheel, the first magnet of regulation and the
The relative position of two magnets, and then the position of the 3rd magnet 43 is adjusted, energy collecting device is collected into more energy.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
God is with principle, and any modification, equivalent substitution and improvements made etc. should be included in the scope of the protection.
Claims (10)
1. a kind of portable vibration energy harvester, including framework（1）, coil（2）And group of magnets（4）, group of magnets（4）It is arranged on
Framework（1）It is interior, group of magnets（4）Opposed coil（2）Motion, it is characterised in that：The group of magnets（4）Including the first magnet（41）、
Second magnet（42）With the 3rd magnet（43）, described the first magnet（41）, the second magnet（42）With the 3rd magnet（43）It is outer
Profile is rounded, the second magnet（42）It is fixedly installed on framework（1）It is interior, the first magnet（41）With the 3rd magnet（43）Rely on respectively
Magnetic attraction is adsorbed in the second magnet（42）Periphery, second magnet（42）With the first magnet（41）With the 3rd magnet（43）
The direction of magnetization on the contrary, the 3rd magnet（43）With framework（1）Side plate inwall between be provided with gap, described coil（2）Set
In framework（1）Side plate inwall on.
2. portable vibration energy harvester according to claim 1, it is characterised in that first magnet（41）With
Two magnet（42）Relative position keep it is constant.
3. portable vibration energy harvester according to claim 1, it is characterised in that the coil（2）At least provided with
For 2, coil（2）Between using series connection by the way of connect.
4. the portable vibration energy harvester according to claim 1 or 3, described coil（2）It is described in annular
Coil（2）The area that outline is surrounded and the 3rd magnet（43）Motion covering area it is consistent.
5. the portable vibration energy harvester according to claim 1 or 3, it is characterised in that：Second magnet（42）
Both ends of the surface be respectively provided with a left regulation wheel in a gear shape（3）, framework（1）Provided with the left regulation wheel with the gear shape（3）Match
The scallop of conjunction（31）, left regulation wheel（3）Adjust the first magnet（41）With the second magnet（42）With framework（1）Relative position.
6. the portable vibration energy harvester according to claim 1 or 3, it is characterised in that：Second magnet（42）
In annular, framework（1）With the second magnet（42）Circular port is provided with, magnetic conduction bolt does not pass through the second magnet（42）And framework
（1）On circular port fix the second magnet（42）.
7. portable vibration energy harvester according to claim 1, it is characterised in that：First magnet（41）,
Two magnet（42）With the 3rd magnet（43）It is made of neodymium iron boron.
8. portable vibration energy harvester according to claim 4, it is characterised in that：Each coil（2）Have 320
Circle, its thickness is 3mm, and internal diameter is 2mm, and external diameter is 25mm, and line footpath is 0.3mm.
9. portable vibration energy harvester according to claim 1, it is characterised in that：The first described magnet（41）'s
A diameter of 5mm, highly be 10mm, the second magnet（42）External diameter be that 20mm, internal diameter are 10mm, are highly 10mm, the 3rd magnet
（43）A diameter of 20mm, height 10mm.
10. portable vibration energy harvester according to claim 1, it is characterised in that：The coil（2）External diameter it is big
In the 3rd magnet（43）Diameter.
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| CN201710709983.XA CN107294341B (en) | 2017-08-18 | 2017-08-18 | Portable vibration energy collector |
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| CN201710709983.XA CN107294341B (en) | 2017-08-18 | 2017-08-18 | Portable vibration energy collector |
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| CN108400696A (en) * | 2018-02-27 | 2018-08-14 | 重庆理工大学 | More magnet structures applied to energy acquisition and sensing |
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| CN111864941A (en) * | 2020-07-29 | 2020-10-30 | 湖南工程学院 | High-robustness magnetic coupling full-sealing friction and electromagnetic composite road surface energy collecting device |
| CN112532011A (en) * | 2020-11-24 | 2021-03-19 | 上海大学 | Plane energy collector based on magnetic flux density abrupt change |
| CN114400859A (en) * | 2022-01-18 | 2022-04-26 | 郑州大学 | Magnetic rotation pendulum type multistable electromagnetic vibration energy capturing device |
| US20220158527A1 (en) * | 2019-04-02 | 2022-05-19 | University Of Exeter | Electrical generation |
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| CN112532011A (en) * | 2020-11-24 | 2021-03-19 | 上海大学 | Plane energy collector based on magnetic flux density abrupt change |
| CN114400859A (en) * | 2022-01-18 | 2022-04-26 | 郑州大学 | Magnetic rotation pendulum type multistable electromagnetic vibration energy capturing device |
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