CN103916046B - Piezoelectric magneto-electricity vibration generating set and manufacturing method - Google Patents
Piezoelectric magneto-electricity vibration generating set and manufacturing method Download PDFInfo
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- CN103916046B CN103916046B CN201310004516.9A CN201310004516A CN103916046B CN 103916046 B CN103916046 B CN 103916046B CN 201310004516 A CN201310004516 A CN 201310004516A CN 103916046 B CN103916046 B CN 103916046B
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Abstract
The invention discloses a piezoelectric magneto-electricity vibration generating set which comprises a base with a hollow structure, at least one electricity generating component and at least two conductive welding pins. Each electricity generating component comprises an elastic plate whose circumferential edge is supported on the base, a piezoelectric plate arranged on the elastic plate and a free vibrator mounted in the middle of the elastic plate, and the piezoelectric plates are electrically connected with the welding pins to output electric energy. Each elastic plate comprises at least one layer of flexible thin film and at least one set of coil laid on the flexible thin film, and the coils are electrically connected with the conductive welding pins to output electric energy. The circumferential edges of the elastic plates are supported on the base, the elastic plates are made to vibrate along the corresponding axes under the action of the free vibrators, the resonant frequency is low, deformation is large, and the generating efficiency is high. Moreover, the elastic plates of the piezoelectric magneto-electricity vibration generating set has good flexibility and sufficient rigidity, impact resistant capacity is strong, the generating efficiency is high, and the coils of the elastic plates also enable electricity to be generated through electromagnetic energy.
Description
Technical field
The present invention relates to a kind of micro-nano electronic technology field, more particularly to a kind of piezoelectricity magnetoelectricity shaking generating set and manufacture
Method.
Background technology
With the fast development and application of MEMS (MEMS) technology, sending out for technology of wireless sensing network has been driven
Exhibition, wherein, commercial applications have been done step-by-step in industry, space flight, communication, business, consumption and military field, one is extremely serious
Problem be how to ensure the electric energy supply of these wireless sensing units, the more popular way of traditional industry is to use battery,
Unit component substantial amounts due to constituting radio sensing network and system, volume is small, position dispersion, and this requires that it is powered
Device has a small volume, and efficiency is high, easy of integration, the features such as unattended and unmanned, can not be expired using conventional batteries
The demand for development of sufficient radio sensing network and system.For this purpose, United States Patent (USP) US20070284969 discloses a kind of piezoelectric shock sending out
Electric installation, the device makes plate bending using the gravity block for arranging at one end, and the PZT on the lithographic plate surface that is laid in is because of flexural deformation
Electric energy is produced, but because the restriction of physical dimension, because the deformation size of cantilever beam is relevant with bar length and thickness, due to structure
And the restriction of cost, cantilever beam can not possibly be oversize, and thickness can not be too thin, which limits its displacement and PZT deformation, thus limits
Its generating efficiency is made, bar is longer, protecting against shock effect is poorer, so, it is the requirement for meeting output, bar is as short as possible, so, altogether
Vibration frequency is just high, therefore the deformation of PZT set by the device is little, and resonant frequency is high, and delivery efficiency is low, and, protecting against shock effect is poor.
Chinese Patent Application No. 200810023882 also reveal that a kind of piezoelectric vibration generation device, and the device is also with being attached to cantilever beam
The PZT on surface produces electric energy because of deformation, and this scheme is also tangible to diminish, and delivery efficiency is low, the deficiency such as protecting against shock effect difference.This
Invention overcomes above-mentioned deficiency, and with small volume, generating efficiency is high, makes simple, easily realizes industrialization.
Therefore, it is badly in need of a kind of piezoelectric vibration generation device that can be solved the above problems.
The content of the invention
It is an object of the invention to provide a kind of piezoelectricity magnetoelectricity shaking generating set, the piezoelectricity magnetoelectricity shaking generating set resonance
Frequency is low, makes vibrational structure have high protecting against shock ability, and with higher generating efficiency, can meet radio sensing network and
The demand for development of system.
It is a further object of the present invention to provide a kind of manufacture method of piezoelectricity magnetoelectricity shaking generating set, the method is manufactured into
Piezoelectricity magnetoelectricity shaking generating set resonant frequency it is low, make vibrational structure that there is high protecting against shock ability, and with higher generating
Efficiency, can meet the demand for development of radio sensing network and system.
It is upper purposeful in order to realize, the invention discloses a kind of piezoelectricity magnetoelectricity shaking generating set, the piezoelectricity magnetoelectricity vibrations
TRT includes pedestal, at least one electrical generation components and at least two conductive capillaries being installed on the pedestal, the base
Seat is in hollow structure, and the electrical generation components include week along being supported in the elastic plate on the pedestal, on the elastic plate
Piezoelectric patches and the free oscillator being installed in the middle of the elastic plate, the piezoelectric patches electrically connects to export electricity with the conductive capillary
Energy；The elastic plate includes that at least one of which fexible film and least one set are laid in the coil on the fexible film, and described
Coil electrically connects to export electric energy with the conductive capillary.
Compared with prior art, it is supported on the pedestal along all or part of in the week of elastic plate of the present invention,
During so that piezoelectricity magnetoelectricity shaking generating set being moved or rocked, the elastic plate is in the presence of free oscillator along the elasticity
Axis (through the center of elastic plate and perpendicular to the straight line of the elastic plate) the direction vibrations of plate, resonant frequency is low, deformation is big,
Generating efficiency is high；On the other hand, elastic plate of the present invention is fabricated from a flexible material so that the elastic plate has preferably soft
Property, and coil is also equipped with the fexible film of the elastic plate so that the elastic plate has enough rigidity, so that described
Electrical generation components have high protecting against shock ability, and generating efficiency is high；Another further aspect, the present invention also causes the coil to constitute WI-FI
Receiving terminal in technology, such that it is able to the electromagnetic signal of WI-FI Base Transmitters is received by the coil and the signal of telecommunication is converted to,
The present invention absorbs the electromagnetic energy such as WI-FI signals in environment and changes into electricity by the coil being laid on the fexible film
Pressure signal exports electric energy so as to energy storage or externally, improves the generating efficiency of the piezoelectricity magnetoelectricity shaking generating set.
It is preferred that the coil has some groups, coil described in some groups is serially connected and/or in parallel.
It is preferred that the center of elastic plate described in the coil encircling and laying in the shape of a spiral.Bullet described in the coil encircling
The center of property plate and in batch (-type) annular distribution.
It is preferred that the coil has some groups, center radial row of the coil described in each group along the elastic plate
Row are laid, and some groups of coils are serially connected and/or in parallel；Specifically, coil described in each group is located at described soft with spiraling
On property thin film and in sector.
It is preferred that the center of elastic plate described in the coil encircling and in compartment annular distribution.Certainly, the coil is also
The laying method such as can wind, spiral by others to be layed on the fexible film, for example, the coil can be wound
In labyrinth-like, three-back-shaped etc..
It is preferred that the fexible film include intermediate active portion, with certain spacer ring around the intermediate active portion edge
Installation portion and the wiring portion between the intermediate active portion and edge installation portion, the coil is laid in whole or in part
In the wiring portion, compact conformation.Wherein, the wiring portion is taken shape on the fexible film by etch process, integrally into
Type, with low cost, making high precision.
Specifically, the wiring portion includes the rib of some connections intermediate active portion and edge installation portion, Ruo Gansuo
State rib radial along the intermediate active portion, the coil there are some groups and is respectively arranged on the two adjacent ribs, with
The coil is set to be arranged radially around the intermediate active portion.Coil described in the program is in sector.
Specifically, the wiring portion include several around the intermediate active portions support ring, the intermediate active portion,
Certain gap is respectively provided between some support rings and edge installation portion, support bridge is distributed with the gap adjacent to connect
Intermediate active portion, support ring and edge installation portion, the coil is laid in the support ring and support bridge, so that the line
Circle is in compartment annular distribution around the intermediate active portion.
Specifically, the wiring portion includes several knee walls around the intermediate active portion, and the knee wall is in spiral shell
Rotation shape, the coil is laid on the knee wall, so that the coil is distributed in the shape of a spiral around the intermediate active portion.
Wiring portion is the structure for supporting coil in such scheme, and certainly, the wiring portion can also be included located at described
Wiring region between intermediate active portion and edge installation portion and the wiring groove on the wiring region, the coil is installed on institute
State in wiring groove.For example, in another kind of scheme, the wiring portion includes some around the annular recessed of the intermediate active portion
Groove, between adjacent two annular groove certain annular gap is formed, and the annular groove of at least one connection two is provided with the annular gap
Link slot, and the connection groove location between adjacent two annular gap is relative, and when arranging coil, plain conductor is around outermost
Annular gap simultaneously enters and next layer of annular gap through the link slot, until the annular gap of innermost layer, then by innermost layer
Annular gap be wound to outermost annular gap, so as to form the coil around the intermediate active portion, when each annular
When having a link slot in gap, the coil has one group and batch (-type) annular distribution, the connection in each annular gap
When groove has two, the coil has two groups and semicircular in shape, is at least three when the link slot in each annular gap exceedes
When, the coil has at least three and is distributed in outside the intermediate active portion in sector.
It is preferred that the back etched of the fexible film has recessed groove, the wiring portion is etched in the groove of the recessed groove
Bottom, the program causes fexible film thickness of thin of the present invention.
It is preferred that the piezoelectric patches is formed by connecting by some strips or trapezoidal shape PZT piezoelectric patches, some strips or ladder
Shape PZT piezoelectric patches radially distributes on the elastic plate along the centre movable part of the elastic plate.Certainly described PZT pressures
Electric piece can also be in sector.
It is preferred that the elastic plate is also including the protective layer on being covered in the fexible film and coil.
It is preferred that the piezoelectric patches primary depositing or being bonded on the elastic plate.Wherein, the piezoelectric patches part or
Person is all connected with the elastic plate.
It is preferred that the bottom includes the centre of upper bottom and/or lower bottom cover, the upper bottom and lower bottom cover respectively to appearance
Put cavity direction and be convexly equipped with convex body.The convex body can play position-limiting action to the vibrations of the elastic plate, prevent the elastic plate
Overload shakes and damages.
Specifically, the convex body is magnet unit, and the magnet unit opposite face magnetic polarity of the upper bottom and lower bottom cover
On the contrary.The program causes to form electromagnetic field between the magnet unit of bottom and the magnet unit of lower bottom cover, the fexible film
On coil as the upper and lower cutting magnetic line of the vibrations of elastic plate is so as to produce electric current, increase generating efficiency.
It is preferred that being bonded with least one free oscillator on the elastic plate.During work, the free oscillator drives described
Elastic plate further increases the elastic plate vibrations along simple harmonic oscillation is made perpendicular to the direction (i.e. its axis) of the elastic plate
Amplitude, reduces the frequency of the elastic plate vibrations, improve generating efficiency.The free oscillator includes single or multiple permanent magnets,
And the opposite face magnetic polarity of adjacent two permanent magnet of multiple permanent magnets is contrary.
It is preferred that the electrical generation components at least two.In the program, two electrical generation components being oppositely arranged are common outwards defeated
Go out electric energy, generating efficiency is high.
Specifically, at least one free oscillator is bonded with the elastic plate.More specifically, the free oscillator includes list
Individual or multiple permanent magnets, and the free oscillator position described in adjacent two between elastic plate is relative and opposite face magnetic polarity conversely, with
The free oscillator between adjacent two elastic plate is set to be connected.Free oscillator described in the program makes with respect to the corresponding elastic plate of push-and-pull
The two adjacent electrical generation components output phases for obtaining the piezoelectricity magnetoelectricity shaking generating set differ the alternating current of 180 degrees.
It is preferred that the fexible film includes plastics, polymer, dacron, metal and oxide or nonmetallic and oxygen
Compound.
Present invention also offers a kind of manufacture method of piezoelectricity magnetoelectricity shaking generating set, comprises the following steps：
A pedestal is provided, the pedestal is in hollow structure；
One fexible film is provided, the coil being made up of plain conductor is laid on the fexible film, so as to make elasticity
Plate；
One free oscillator is provided, the free oscillator is installed on into the centre of the elastic plate；
By the week of elastic plate along being supported on the pedestal, so that the free oscillator is placed in the hollow knot of the pedestal
Structure, makes the elastic plate to shake along the axis of the elastic plate under the effect of free oscillator, and arranges pressure in the elasticity
Electric piece；
At least two conductive capillaries are provided, the two ends of the coil are electrically connected with the conductive capillary, by the piezoelectricity
Piece is electrically connected with the conductive capillary；
At least one bottom is provided, the bottom is covered on into the end of the pedestal and with the pedestal is formed accommodating
Chamber, and the conductive capillary forms two conductive electrodes through the bottom.
Description of the drawings
Fig. 1 is the axonometric chart of the shaking generating set of piezoelectricity magnetoelectricity described in first embodiment of the invention.
Fig. 2 is the sectional view of Fig. 1.
Fig. 3 is the three-dimensional exploded view of Fig. 1.
Fig. 4 a are elastic plate described in Fig. 1 and piezoelectric patches scheme of installation.
Fig. 4 b are the three-dimensional exploded views of Fig. 4 a.
Fig. 4 c are the decomposing schematic representations of elastic plate described in Fig. 4 b.
Fig. 4 d are that elastic plate described in Fig. 4 b removes the top view after protective layer.
Fig. 5 a are elastic plate described in second embodiment of the invention and piezoelectric patches scheme of installation.
Fig. 5 b are the three-dimensional exploded views of Fig. 5 a.
Fig. 5 c are the top views of the conductor layer of elastic plate described in Fig. 5 b.
Fig. 5 d are the exploded views of elastic plate described in Fig. 5 a.
Fig. 6 is the axonometric chart of the shaking generating set of piezoelectricity magnetoelectricity described in third embodiment of the invention.
Fig. 7 is the sectional view of Fig. 6.
Specific embodiment
To describe technology contents of the invention, structural features in detail, purpose and effect being realized, below in conjunction with embodiment
And coordinate accompanying drawing to be explained in detail.
Referring to figs. 1 to Fig. 4 d, the invention discloses a kind of piezoelectricity magnetoelectricity shaking generating set, referring to figs. 1 to Fig. 3, the pressure
Electromagnetism electricity shaking generating set 100 includes that pedestal 11, at least one electrical generation components 13 and at least two are installed on the pedestal 11
On conductive capillary 14, the pedestal 11 is in hollow structure, and with reference to Fig. 4 a to Fig. 4 d, the electrical generation components 13 include elastic plate 21
With the piezoelectric patches 22 on the elastic plate 21 and the free oscillator 23 being installed in the middle of elastic plate 21, piezoelectric patches 22 is with extremely
Few two conductive layers, the piezoelectric layer being sandwiched between two conductive layers and at least two pads 221, the pad of the piezoelectric patches 22
221 electrically connect to export electric energy with the conductive capillary 14；With reference to Fig. 2, the week edge of the elastic plate 21 is supported in the pedestal
On 12, when piezoelectricity magnetoelectricity shaking generating set 100 is moved or rocked, in the presence of free oscillator 23, the elastic plate
21 along the elastic plate 21 axis shake, because piezoelectric patches 22 is laid on elastic plate 21, the vibrations of elastic plate 21 will be led
Piezoelectric patches 22 is caused to deform upon, the deformation of piezoelectric patches will produce piezoelectric effect so as to pass through the external output voltage of its pad, this
Structure resonant frequency is low, deformation is big, generating efficiency is high.
With reference to Fig. 4 c, the elastic plate 21 includes at least one of which fexible film 211 and on the fexible film 211
Conductor layer 212, the conductor layer 212 include least one set coil 31 by made by plain conductor, the two ends of the coil 31
Electrically connect to export electric energy with the conductive capillary 14.The program causes the coil 31 to constitute the acceptance in WI-FI technologies
End, such that it is able to the electromagnetic signal of WI-FI Base Transmitters is received by the coil 31 and the signal of telecommunication is converted to, so as to realize
WI-FI collection can generate electricity.Wherein, the fexible film 211 is the plate being fabricated from a flexible material, and specifically includes plastics, polymer, gathers
Fat fiber, metal and oxide or nonmetallic and oxide so that the elastic plate 21 is flexible, plain conductor is layed in described
The good rigidity of the elastic plate is caused on fexible film 211, with high protecting against shock ability, generating efficiency is high.
With reference to Fig. 4 c, the fexible film 211 of the elastic plate 21 includes intermediate active portion 41, edge installation portion 42 and is located at
Wiring portion 43 between the intermediate active portion 41 and edge installation portion 42, the coil 31 is layed in the wiring portion 43,
The free oscillator 23 is installed in the intermediate active portion 41.Certainly, the coil 31 can be extending to from wiring portion 43
At the intermediate active portion 41 and/or edge installation portion 42, however it is not limited at the wiring portion 43.Wherein, the edge is installed
Capillary hole 421 is offered in portion 42, the conductive capillary 14 is through the bottom 12 and is installed in the capillary hole 421, just
In the electrical connection of coil 31 and conductive capillary 14, piezoelectric patches 22 and conductive capillary 14.Specifically, with reference to Fig. 4 c and Fig. 4 d, at this
In embodiment, the coil 31 is around the intermediate active portion 41 of the elastic plate 21 and in compartment annular distribution.Wherein, it is described
Coil 31 has some groups, and coils from parallel connection of coils or series connection described in some groups.Certainly, the coil 31 can also be by others
Winding, spiral or laying method is layed on the fexible film 211, for example can by the coil 31 be wound in labyrinth-like,
Can also surround the elastic plate 21 center and in the shape of a spiral, can also be in three-back-shaped etc..
Preferably, with continued reference to Fig. 4 c and Fig. 4 d, the wiring portion 43 includes several around the intermediate active portion 41
Support ring 44, the intermediate active portion 41, certain gap 45 is respectively provided between some support rings 44 and edge installation portion 42,
Support bridge 46 is distributed with the gap 45 to connect adjacent intermediate active portion 41, support ring 44 and edge installation portion 42,
The coil 31 is laid in the support ring 44 and support bridge 45, so that between the coil 31 is in around the intermediate active portion 41
Every formula annular distribution.Wherein, the electrical connection of coil 31 and conductive capillary 14 for convenience, at the intermediate active portion 41 and support
A conducting strip 34 is respectively equipped with outside ring 44.Certainly, the wiring portion can also include several around the intermediate active portion 41
Knee wall, in the shape of a spiral, the program causes that the coil is spiral to be distributed in the intermediate active portion to the knee wall
Outside 41.Wherein, the support bridge 46 in adjacent segment 45 is interspersed, and has several support bridges 46 in each gap 45, and each
Support bridge 46 in gap 45 be uniformly distributed with the gap 45.
With reference to Fig. 4 c, the elastic plate 21 also includes being covered in the protection on the fexible film 211 and the surface of conductor layer 212
Layer, to protect the coil 31.
With reference to Fig. 4 a and Fig. 4 b, the piezoelectric patches 22 is formed by connecting by some PZT piezoelectric patches, some PZT piezoelectric patches
Periphery along the centre movable part 41 of the elastic plate 21 radially distributes on the elastic plate 21.It is described in the program
PZT piezoelectric patches is trapezoidal, and certainly the PZT piezoelectric patches can also be in vertical bar shape or sector.Wherein, the PZT piezoelectric patches is once
Deposition is bonded on the elastic plate 21.Certainly, the piezoelectric patches 22 can also be overall structure PZT piezoelectric patches, now,
Offer in the middle of the PZT piezoelectric patches it is corresponding with the intermediate active portion 41 and through the through hole of the PZT piezoelectric patches, it is described logical
Hole can absorb stress, prevent the piezoelectric patches from rupturing during vibrations.
With reference to Fig. 4 b and Fig. 4 d, the conductor layer 212 also includes the piezoelectricity electrically connected with the pad 221 of the piezoelectric patches 22
Pad 32, and the piezoelectricity pad 32 is located at the edge installation portion 42 and electrically connects with the conductive capillary 14.
Referring to figs. 1 to Fig. 3, the piezoelectricity magnetoelectricity shaking generating set 100 also includes bottom 12, and the bottom 12 is covered on
The end of the pedestal 11 simultaneously forms containing cavity 111, the conductive capillary 14 shape through the bottom 12 with the pedestal 11
Into two conductive electrodes, the electrical generation components 13 are installed in the containing cavity 111.Specifically, referring to figs. 2 and 3 the bottom
Lid 12 includes the centre of upper bottom 121 and lower bottom cover 122, the upper bottom 121 and lower bottom cover 121 respectively to the side of containing cavity 111
To convex body is convexly equipped with, so as to play position-limiting action to the vibrations of the elastic plate 21, the overload for preventing the elastic plate 21 shakes
And damage.Specifically, the convex body is magnet block 123, and the opposite face of magnet piece 123 of the upper bottom 121 and lower bottom cover 122
Magnetic polarity is contrary.During work, electromagnetic field is formed between the magnet block 123 of upper bottom 121 and the magnet block 123 of lower bottom cover 122, institute
The coil 31 on fexible film 211 is stated as the upper and lower cutting magnetic line of the vibrations of elastic plate 21 is so as to produce electric current, be increased and sent out
Electrical efficiency.Wherein, the magnet piece 123 can be replaced with other magnet units by coil unit etc..Certainly, the bottom also may be used
Only to include a upper bottom or a lower bottom cover.
With continued reference to Fig. 2 and Fig. 3, the free oscillator 23 is adhered on the elastic plate 21, and the free oscillator 23
Including two permanent magnets 231, and the magnetic polarity of the opposite face of multiple permanent magnets 231 is contrary.Certainly, the free oscillator 23
One or two above permanent magnets can also be included, the permanent magnet can also be replaced with other magnet units.
It is the second embodiment of the present invention with reference to Fig. 5 a to Fig. 5 d, and unlike first embodiment, in the embodiment,
, with some groups, coil 31 ' described in each group is in sector and is located at the flexibility with spiraling for the coil 31 ' of the elastic plate 21 '
On thin film 211, coil 31 ' described in some groups is radial and equal along the periphery of the centre movable part 41 of the fexible film 211
Even distribution.The program further increases the collection energy efficiency of WI-FI collection energy, improves sending out for the piezoelectricity magnetoelectricity shaking generating set
Electrical efficiency.Wherein, coil pad 33, the two ends of the coil 31 ' and the coil pad are provided with the edge installation portion 42
33 electrical connections.
Preferably, from unlike first embodiment, with reference to Fig. 5 d, the wiring portion includes the connection intermediate active portion
41 and some ribs 44 ' of edge installation portion 42, it is clear area between two consecutive webs 44 ', some ribs 44 ' are along described
The radial difference in intermediate active portion 41, the coil 31 ' is wound on the two adjacent ribs 44 ' and in sector.Specifically,
The coil 31 ' has some groups and distributes alternately on the clear area.Certainly, the coil 31 ' can also directly spiral
On two consecutive webs 44 ', so that the rib 44 ' supports the coil 31 '.
It is the third embodiment of the present invention with reference to Fig. 6 and Fig. 7, and unlike first embodiment, in the embodiment, institute
Stating electrical generation components 13 has two and position relative, and the elastic plate 21 of electrical generation components 13 described in two is respectively supported at the pedestal 11
Upper and lower ends, are bonded with least one free oscillator 23 on each elastic plate 21, the free oscillator 23 includes two forever
Magnet 231, and the position of free oscillator 23 described in two between elastic plate 21 is relative and opposite face magnetic polarity is conversely, so that adjacent two
Free oscillator 23 between elastic plate 21 is connected, during work, the free oscillator 23 corresponding elastic plate 21 of relative push-and-pull so that
The output phase of two adjacent electrical generation components 13 of the piezoelectricity magnetoelectricity shaking generating set 100 ' differs the alternating current of 180 degree.Certainly,
The electrical generation components can also have three, four etc. numbers.
The invention also discloses a kind of manufacture method of piezoelectricity magnetoelectricity shaking generating set, comprises the following steps：There is provided one
Pedestal, the pedestal is in hollow structure；One fexible film is provided, the line being made up of plain conductor is laid on the fexible film
Circle, so as to make elastic plate；One free oscillator is provided, the free oscillator centre of the elastic plate is bonded in into, by elasticity
The week of plate, along being supported on the pedestal, so that the free oscillator is placed in the hollow structure of the pedestal, makes the elastic plate
Can shake along the axis of the elastic plate under the effect of free oscillator, and piezoelectric patches is set in the elasticity；There is provided at least two
Individual conductive capillary, the two ends of the coil are electrically connected with the conductive capillary, by the piezoelectric patches and the conductive capillary electricity
Connection；At least one bottom is provided, by the bottom be covered on the pedestal end and with the pedestal formed containing cavity, and
The conductive capillary forms two conductive electrodes through the bottom.Certainly, the free oscillator can also pass through its other party
Formula is installed on the centre of the elastic plate.
Above disclosed is only the preferred embodiments of the present invention, can not limit the right of the present invention with this certainly
Scope, therefore the equivalent variations made according to scope of the present invention patent, still belong to the scope that the present invention is covered.
Claims (16)
1. a kind of piezoelectricity magnetoelectricity shaking generating set, it is characterised in that：Including pedestal, at least one Power Generation Section in hollow structure
Part and at least two it is installed on conductive capillary on the pedestal, the electrical generation components include week along being supported on the pedestal
Elastic plate, the piezoelectric patches on the elastic plate and the free oscillator being installed in the middle of the elastic plate, wherein：
The piezoelectric patches electrically connects to export electric energy with the conductive capillary；
The elastic plate includes that at least one of which fexible film and least one set are laid in the coil on the fexible film, the line
Circle winding is hovered above to provide the rigidity of elastic plate on the fexible film, and the coil is electrically connected with the conductive capillary
To export electric energy.
2. piezoelectricity magnetoelectricity shaking generating set as claimed in claim 1, it is characterised in that：Elastic plate described in the coil encircling
Center and lay in the shape of a spiral.
3. piezoelectricity magnetoelectricity shaking generating set as claimed in claim 1, it is characterised in that：Elastic plate described in the coil encircling
Center and in compartment ring-type lay.
4. piezoelectricity magnetoelectricity shaking generating set as claimed in claim 1, it is characterised in that：The coil has some groups, often
Coil described in one group is arranged radially laying along the center of the elastic plate, some groups of coils be serially connected and/or and
Connection.
5. piezoelectricity magnetoelectricity shaking generating set as claimed in claim 4, it is characterised in that：Coil described in each group sets with spiraling
On the fexible film and in sector.
6. piezoelectricity magnetoelectricity shaking generating set as claimed in claim 1, it is characterised in that：The fexible film includes middle living
Dynamic portion, with certain spacer ring around the edge installation portion in the intermediate active portion and positioned at the intermediate active portion and edge installation portion
Between wiring portion, the coil is installed in whole or in part in the wiring portion.
7. piezoelectricity magnetoelectricity shaking generating set as claimed in claim 6, it is characterised in that：The wiring portion includes some connections
The intermediate active portion and the rib of edge installation portion, some ribs are radial along the intermediate active portion, the line
Circle has some groups and is respectively arranged on the two adjacent ribs, so that the coil is around the radial row in the intermediate active portion
Row.
8. piezoelectricity magnetoelectricity shaking generating set as claimed in claim 6, it is characterised in that：The wiring portion includes several rings
Around the support ring in the intermediate active portion, the intermediate active portion, be respectively provided between some support rings and edge installation portion it is certain
Gap, support bridge is distributed with the gap to connect adjacent intermediate active portion, support ring and edge installation portion, it is described
Coil is laid in the support ring and support bridge, so that the coil is in compartment annular distribution around the intermediate active portion.
9. piezoelectricity magnetoelectricity shaking generating set as claimed in claim 6, it is characterised in that：The wiring portion includes several rings
Around the knee wall in the intermediate active portion, in the shape of a spiral, the coil is laid on the knee wall knee wall, so that institute
State coil to be distributed in the shape of a spiral around the intermediate active portion.
10. piezoelectricity magnetoelectricity shaking generating set as claimed in claim 6, it is characterised in that：The back side erosion of the fexible film
Recessed groove is carved with, the wiring portion is etched in the bottom land of the recessed groove.
11. piezoelectricity magnetoelectricity shaking generating sets as claimed in claim 1, it is characterised in that：The piezoelectric patches is by some strips
Or trapezoidal shape PZT piezoelectric patches is formed by connecting, the intermediate active of some strips or trapezoidal shape PZT piezoelectric patches along the elastic plate
Portion radially distributes on the elastic plate.
12. piezoelectricity magnetoelectricity shaking generating sets as claimed in claim 1, it is characterised in that：The elastic plate also includes covering
Protective layer on the fexible film and coil.
13. piezoelectricity magnetoelectricity shaking generating sets as claimed in claim 1, it is characterised in that：Also include bottom, the bottom lid
Containing cavity is formed on the pedestal and with the pedestal, the electrical generation components are located at the accommodating intracavity, and the bottom includes
The centre of upper bottom and/or lower bottom cover, the upper bottom and lower bottom cover is convexly equipped with convex body to accommodating cavity direction respectively.
14. piezoelectricity magnetoelectricity shaking generating sets as claimed in claim 1, it is characterised in that：The free oscillator includes single
Or multiple permanent magnets, and the opposite face magnetic polarity of multiple permanent magnets of the free oscillator is contrary.
15. piezoelectricity magnetoelectricity shaking generating sets as claimed in claim 1, it is characterised in that：The fexible film include plastics,
Polymer, dacron, metal and oxide or nonmetallic and oxide.
A kind of 16. manufacture methods of piezoelectricity magnetoelectricity shaking generating set, it is characterised in that：Comprise the following steps：
A pedestal is provided, the pedestal is in hollow structure；
One fexible film is provided, the coil being made up of plain conductor is laid on the fexible film, so as to make elastic plate, institute
State coil winding or hover above on the fexible film to provide the rigidity of elastic plate；
One free oscillator is provided, the free oscillator is arranged on into the centre of the elastic plate；
By the week of elastic plate along being supported on the pedestal, so that the free oscillator is placed in the hollow structure of the pedestal, make
The elastic plate can shake under the effect of free oscillator along the axis direction of the elastic plate, and arrange piezoelectricity in the elasticity
Piece；
At least two conductive capillaries are provided, the two ends of the coil electrically connects with the conductive capillary, by the piezoelectric patches and
The conductive capillary electrical connection；
At least one bottom is provided, by the bottom be covered on the pedestal end and with the pedestal formed containing cavity, and
The conductive capillary forms two conductive electrodes through the bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310004516.9A CN103916046B (en) | 2013-01-07 | 2013-01-07 | Piezoelectric magneto-electricity vibration generating set and manufacturing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310004516.9A CN103916046B (en) | 2013-01-07 | 2013-01-07 | Piezoelectric magneto-electricity vibration generating set and manufacturing method |
Publications (2)
| Publication Number | Publication Date |
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| CN103916046A CN103916046A (en) | 2014-07-09 |
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| CN104702152A (en) * | 2015-03-25 | 2015-06-10 | 上海交通大学 | Low-frequency and wide-frequency noise generating set based on acoustic metamaterial |
| CN104883091B (en) * | 2015-04-28 | 2017-02-01 | 山东科技大学 | Micromachining technology-based piezoelectric electromagnetic integrated power generation device |
| CN105006994B (en) * | 2015-08-25 | 2017-04-19 | 东南大学 | Piezoelectric-electromagnetic hybrid MEMS vibration energy collector and preparation method thereof |
| CN105162291B (en) * | 2015-08-25 | 2017-07-07 | 东南大学 | A kind of electromagnetic type MEMS vibrational energy collectors and preparation method thereof |
| CN106817008A (en) * | 2015-11-30 | 2017-06-09 | 张黎强 | A kind of vibration generating device |
| CN106887973B (en) * | 2017-04-05 | 2019-01-01 | 南京邮电大学 | A kind of parallel composite beam piezoelectricity based on magneticaction-electromagnetism prisoner's energy device |
| CN109121049A (en) * | 2017-06-23 | 2019-01-01 | 英属开曼群岛商智动全球股份有限公司 | Electroacoustic transducer |
| CN110336442A (en) * | 2019-04-29 | 2019-10-15 | 中北大学 | A kind of micro- energy resource collecting device of magnetoelectricity Piezoelectric anisotropy |
| WO2021142699A1 (en) * | 2020-01-16 | 2021-07-22 | 武文静 | Self-power generation assembly and self-power generation device |
| TWI745838B (en) * | 2020-01-21 | 2021-11-11 | 彥辰科技有限公司 | Electric generator and energy storage system |
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| CN101814860A (en) * | 2010-04-09 | 2010-08-25 | 中北大学 | Vibratory drive composite micro-power source based on piezoelectric effect and electromagnetic induction |
| CN102611351A (en) * | 2012-03-23 | 2012-07-25 | 东南大学 | Piezoelectricity-magnetic electricity mixed energy collection device |
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| CN101814860A (en) * | 2010-04-09 | 2010-08-25 | 中北大学 | Vibratory drive composite micro-power source based on piezoelectric effect and electromagnetic induction |
| CN102611351A (en) * | 2012-03-23 | 2012-07-25 | 东南大学 | Piezoelectricity-magnetic electricity mixed energy collection device |
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