CN209692569U - A kind of acoustic energy conversion equipment based on electromagnetic induction - Google Patents
A kind of acoustic energy conversion equipment based on electromagnetic induction Download PDFInfo
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- CN209692569U CN209692569U CN201920064078.8U CN201920064078U CN209692569U CN 209692569 U CN209692569 U CN 209692569U CN 201920064078 U CN201920064078 U CN 201920064078U CN 209692569 U CN209692569 U CN 209692569U
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Abstract
The utility model discloses a kind of acoustic energy conversion equipment based on electromagnetic induction, the acoustic energy conversion equipment are circular cylindrical cavity, and end face sets sound wave incident mouth；Around sound wave incident mouth, the nested type acoustics pipeline that facility is arranged vertically on the inside of end face, the nested type acoustics pipeline is formed by not closed circular annular inner wall, outer wall nesting；Top surface covers inner wall, outer wall, so that nested type acoustics pipeline is formed a support base in the cavity, places acoustic-electric conversion equipment in support base；The acoustic-electric conversion equipment includes permanent magnet, annular electromagnetic induction coil；Permanent magnet is corresponding with the center of electromagnetic induction coil and permanent magnet radius is less than electromagnetic induction coil radius, and permanent magnet is moved back and forth relative to electromagnetic induction coil.This hair sets nested type acoustics pipeline in the cavity, provides for placing the supporting surface of coil and combining with cavity, realizes the acoustic energy collection structure of close-coupled, can effectively reduce acoustic energy transformational structure and occupy volume, while improve conversion energy.
Description
Technical field
The present invention relates to a kind of acoustic energy conversion equipment based on electromagnetic induction.
Background technique
Stronger sound can be widely present in factory, highway, the various vehicles (such as aircraft, high-speed rail, steamer, automobile)
Etc. occasions.As a kind of environmental energy, usual sound can eventually be absorbed by other media in communication process and be converted into thermal energy
It dissipates.From the point of view of another angle, sound can be converted into electric energy, and by subsequent by designing special device
Conditioning circuit and energy storage device, the recycling of realization sound energy.
This application is compeled as the development of low-power electronic devices and technology of Internet of things has extensively in real life
The demand cut.By taking the Internet of things node of disperse in the environment as an example, in order to be continued to monitor to environmental variance, in conventional side
It needs to be powered using battery under method.But since battery is limited by capacity, volume, environment temperature and weight, very much
Inconvenient installation, additionally needs and spends higher cost periodic replacement battery in, to realize effective maintenance to it.Work as Internet of Things
Net node it is huge to certain amount when, this maintenance cost usually seems very huge.And environmental energy is utilized, it converts thereof into
Electric energy substitutes battery realization, can effectively solve the above problems,
Sound relatively broad can be present in natural environment, and unlike solar energy, thermal energy etc. are limited by natural conditions,
So before the sound in environment can be directly changed into electric energy to realize the energy supply to low-power consumption micro device with wide application
Scape.Sound can be ubiquitous in natural environment, and by the energy conversion device of special designing, sound can be can be carried out to effective prisoner
It obtains, provides strong support for the energy of low energy-consumption electronic device from maintenance.
Summary of the invention
Goal of the invention: a kind of based on electromagnetic induction the purpose of the invention is to overcome the deficiencies of the prior art and provide
Acoustic energy conversion equipment.
In order to solve the above technical problems, the present invention adopts the following technical scheme: a kind of acoustic energy based on electromagnetic induction turns
Changing device, it is characterised in that: the acoustic energy conversion equipment is circular cylindrical cavity, and end face sets sound wave incident mouth；Around sound wave
Entrance port, the nested type acoustics pipeline that facility is arranged vertically on the inside of end face, the nested type acoustics pipeline is by not closed circle
Shape inner wall, outer wall nesting form；Top surface covers inner wall, outer wall, and nested type acoustics pipeline is made to form a support base in the cavity,
Acoustic-electric conversion equipment is placed in support base；The acoustic-electric conversion equipment includes permanent magnet, annular electromagnetic induction coil；Permanent magnet
And permanent magnet radius corresponding with the center of electromagnetic induction coil is less than electromagnetic induction coil radius, and permanent magnet is relative to electricity
Magnetic induction coil moves back and forth.The configuration of the present invention is simple, by setting nested type acoustics pipeline in the cavity, to provide
It is combined for placing the supporting surface of coil with cavity, realizes the acoustic energy collection structure of close-coupled, it can effective diminution sound energy
It measures while transformational structure occupies volume and improves conversion energy.
The permanent magnet is set to the center of cylindrical bottom, and electromagnetic induction coil corresponding with its position is set to
In support base, permanent magnet is greater than the mechanical reciprocating that permanent magnet is generated in operatic tunes resonant frequency at a distance from support base
The distance of movement.
The bottom surface of the circular cylindrical cavity is the easily deformable material of elasticity.
The inner wall, outer wall height are consistent.
The electromagnetic induction coil is enamel wire coil.
The inner wall, outer wall, aperture position are staggered.
The opening of the outer wall is the communication port of nested type acoustics pipeline and circular cylindrical cavity.
The circular cylindrical cavity outside wall surface and end face is made by 3D printing or by CNC processing metal material.
The nested type acoustics pipeline is made by 3D printing or by CNC processing metal material.
Beneficial effect
1. the configuration of the present invention is simple, by setting nested type acoustics pipeline in the cavity, to provide for placing coil
Supporting surface combined with cavity, realize the acoustic energy collection structure of close-coupled, can effectively reduce raw energy converting structure and account for
Energy is converted with improving while volume.
2. the present invention can effectively avoid by the way that nested type acoustics pipeline, electromagnetic induction coil, permanent magnet to be set in cavity
Its defect for being exposed to outer wall, improves service life.
Detailed description of the invention
Fig. 1 is circular cylindrical cavity structure schematic diagram of the present invention；
Fig. 2 is the structural schematic diagram for removing the resonant cavity in bottom compliant face；
Fig. 3 is the nested type acoustics pipeline structure schematic diagram containing closing top surface；
Fig. 4 is the nested type acoustics channel interior structural schematic diagram for removing closing top surface；
Fig. 5 is for closing the bottom surface of resonant cavity and being fixed therein the cylindrical permanent magnet of the heart.
Wherein, 1. circular cylindrical cavity outer wall, 2. permanent magnets, 3. electromagnetic induction coils, 4. top surfaces, 5. outer walls, 6. communication ports,
7. end face, 8. inner walls, 9. sound wave incident mouths, 10. bottom surfaces.
Specific embodiment
The present invention is described in further detail with reference to the accompanying drawings and embodiments, it should be understood that these embodiments are only used for
Illustrate the present invention rather than limits the scope of the invention.
Embodiment:
As shown in Figure 1, a kind of acoustic energy conversion equipment based on electromagnetic induction, after sound wave incident to the device, pass through sound
Wave entrance port 9 enters this device.Remaining wall surface is due to being hard and having a certain thickness, and sound wave incident thereon is by most of hair
Raw reflection.
As shown in Figures 2 and 3, sound wave from sound wave incident mouth 9 enter the acoustic energy conversion equipment after, will along by inner wall 6,
The closed acoustics pipeline that outer wall 5, bottom surface 4 are formed, is propagated further to resonant cavity, to form acoustics from the communication port 6 of outer wall 5
Resonance structure.
There is free electrocardio magnetic induction coil 3 on the top surface 4 of nested type acoustics pipeline, it can be by rapid-curing cutback glue by the line of induction
Circle 3 is pasted with top surface 4 realizes fixation.The exit of electromagnetic induction coil 3 can be connected with external loading.
If removing the top surface 4 of nested type acoustics pipeline, the internal structure of nested type acoustics pipeline is as shown in Figure 4.
As shown in figure 5, cylindrical permanent magnet 2 is pasted on bottom surface 10, to keep symmetry, the center of permanent magnet end is answered
It is overlapped with the center of rounded bottom surface 10.The edge portions of bottom surface 10 are fixedly connected with circular cylindrical cavity outer wall 1, airtight cavity.
Permanent magnet 2 is placed in electromagnetic induction coil 3, and radius should be less than the radius of the enclosed circumference of induction coil 3, but cannot
Too small, recommending the radius of permanent magnet is 80% or more of induction coil radius, to keep the permanent magnet that can generate stronger magnetic
.
The one side of permanent magnet 2 is connected by epoxy glue with the bottom surface 10 of resonant cavity, and rest part is suspended on electromagnetic induction line
In circle 3, and maintained a certain distance with the top surface 4 of the nested type acoustics pipeline in figure.It, can by the way that certain safe distance is arranged
Acutely resonance is generated to guarantee bottom surface at operatic tunes resonance frequency, when driving electromagnet movement, will not strike on end face 4, prevent
Only structural key part is damaged or is generated strong nonlinear effect.
When the frequency of incident acoustic wave is equal to the resonant frequency of sound energy conversion equipment, violent acoustics will be generated in the operatic tunes and is total to
Vibration, to realize the amplification of acoustic pressure.Since internal acoustic pressure is larger, higher pressure fluctuation will be formed in the operatic tunes, acts on bottom surface
On 10, it is made to generate forced vibration.Such as by optimization, so that the mechanical resonant of the bottom surface 10 of additional permanent magnet resonates equal to the operatic tunes
Frequency, under coupled resonance, this vibration be will be more significant.
The judder of bottom surface will drive the permanent magnet pasted on it and generate strong movements, since permanent magnet is largely put
It sets in electromagnetic induction coil 3, it will reciprocating cutting is carried out to the magnetic line of force.According to Faraday's electromagnetic induction law, coil both ends
Potential difference can be generated, this energy source can be connected to above or on energy-storage travelling wave tube by conducting wire by extraneous load, realize acoustic-electric conversion
The reasonable utilization of energy afterwards.
When being realized, bottom surface 10 be can choose as flake aluminum perhaps metal materials such as scale copper or for tensioning
Rubber film, electromagnetic induction coil are enamel wire coil.The circular cylindrical cavity outside wall surface and end face 7 can be by 3D printing or logical
CNC processing metal material is crossed to be made；The top surface 4 of the nested type acoustics pipeline, outer wall 5, inner wall 8 by 3D printing or can pass through
CNC processing metal material is made.Each component can be assembled when connecting by epoxy glue, to effectively reduce air gap.Permanent magnet can
To be selected as neodymium iron boron strong magnet.
In structural parameters setting, the acoustic resonance frequency of the length of nested type acoustics pipeline and the size of the operatic tunes and this device
Rate is closely related.Therefore, progress should be synchronized with interested sound wave incident frequency when structure is designed, to realize
Acoustic resonance under specific frequency.One effective method is to establish multiple physical field couple numerical approach by finite element simulation
It calculates to obtain parameter value.
It should be pointed out that the present apparatus cleverly devises embedded acoustics pipeline, to provide for placing line
The supporting surface of circle, combines with cavity, realizes the acoustic energy collection structure of close-coupled.In addition, embedded acoustics pipeline is set
Meter and embedded coil, magnet installation form can effectively reduce the volume that a whole set of acoustic energy transformational structure occupies, side
Just array, which installs and deploys, to be realized to it, to improve the energy of conversion.Magnet, coil etc. are closed by enclosed shell
Key member realizes effective protection, avoids it and is exposed to external defect, can effectively improve its service life, be also convenient for quotient
Industryization produces in enormous quantities and application.
Above-described specific embodiment has carried out further the purpose of the present invention, technical scheme and beneficial effects
It is described in detail, it should be understood that being not limited to this hair the foregoing is merely a specific embodiment of the invention
It is bright.All within the spirits and principles of the present invention, any modification, equivalent substitution, improvement and etc. done, should be included in invention
Within protection scope.
Claims (9)
1. a kind of acoustic energy conversion equipment based on electromagnetic induction, it is characterised in that: the acoustic energy conversion equipment is cylinder
Cavity (1), end face (7) set sound wave incident mouth (9)；
Around sound wave incident mouth (9), the nested type acoustics pipeline that facility is arranged vertically on the inside of end face (7), the nested type sound
Pipeline is learned to be formed by not closed circular annular inner wall (8), outer wall (5) nesting；
Top surface (4) covers inner wall (8), outer wall (5), and nested type acoustics pipeline is made to form a support base in the cavity, supports bottom
Acoustic-electric conversion equipment is placed on seat；The acoustic-electric conversion equipment includes permanent magnet (2), annular electromagnetic induction coil (3)；
Permanent magnet (2) is corresponding with the center of electromagnetic induction coil (3) and permanent magnet (2) radius is less than electromagnetic induction coil
(3) radius, permanent magnet (2) are moved back and forth relative to electromagnetic induction coil (3).
2. a kind of acoustic energy conversion equipment based on electromagnetic induction according to claim 1, it is characterised in that: it is described forever
Magnet (2) is set to the center of cylindrical bottom (10), and electromagnetic induction coil (3) corresponding with its position is set to support bottom
On seat, permanent magnet (2) is greater than the mechanical reciprocating that permanent magnet (2) are generated in operatic tunes resonant frequency at a distance from support base
The distance of movement.
3. a kind of acoustic energy conversion equipment based on electromagnetic induction according to claim 2, it is characterised in that: the cylinder
The bottom surface (10) of shape cavity is the easily deformable material of elasticity.
4. a kind of acoustic energy conversion equipment based on electromagnetic induction according to claim 1, it is characterised in that: the inner wall
(8), outer wall (5) height is consistent.
5. a kind of acoustic energy conversion equipment based on electromagnetic induction according to claim 1, it is characterised in that: the electricity
Magnetic induction coil (3) is enamel wire coil.
6. a kind of acoustic energy conversion equipment based on electromagnetic induction according to claim 1, it is characterised in that: described is interior
Wall (8), outer wall (5), aperture position is staggered.
7. a kind of acoustic energy conversion equipment based on electromagnetic induction according to claim 1 or 4, it is characterised in that: described
The opening of outer wall (5) is the communication port (6) of nested type acoustics pipeline and circular cylindrical cavity.
8. a kind of acoustic energy conversion equipment based on electromagnetic induction according to claim 1, it is characterised in that: the circle
Cylindrical chamber (1) outside wall surface and end face (7) are made by 3D printing or by CNC processing metal material.
9. a kind of acoustic energy conversion equipment based on electromagnetic induction according to claim 1, it is characterised in that: described is embedding
Shell type acoustics pipeline is made by 3D printing or by CNC processing metal material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920064078.8U CN209692569U (en) | 2019-01-15 | 2019-01-15 | A kind of acoustic energy conversion equipment based on electromagnetic induction |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920064078.8U CN209692569U (en) | 2019-01-15 | 2019-01-15 | A kind of acoustic energy conversion equipment based on electromagnetic induction |
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| CN209692569U true CN209692569U (en) | 2019-11-26 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109995214A (en) * | 2019-01-15 | 2019-07-09 | 南京邮电大学 | A kind of acoustic energy conversion equipment based on electromagnetic induction |
| US11758332B1 (en) * | 2022-04-15 | 2023-09-12 | United States Of America As Represented By The Secretary Of The Navy | Biodegradable microphone |
-
2019
- 2019-01-15 CN CN201920064078.8U patent/CN209692569U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109995214A (en) * | 2019-01-15 | 2019-07-09 | 南京邮电大学 | A kind of acoustic energy conversion equipment based on electromagnetic induction |
| CN109995214B (en) * | 2019-01-15 | 2024-02-23 | 南京邮电大学 | Acoustic energy conversion device based on electromagnetic induction |
| US11758332B1 (en) * | 2022-04-15 | 2023-09-12 | United States Of America As Represented By The Secretary Of The Navy | Biodegradable microphone |
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