CN105449812B - A kind of air-flow charging device applied to mobile phone - Google Patents
A kind of air-flow charging device applied to mobile phone Download PDFInfo
- Publication number
- CN105449812B CN105449812B CN201610003290.4A CN201610003290A CN105449812B CN 105449812 B CN105449812 B CN 105449812B CN 201610003290 A CN201610003290 A CN 201610003290A CN 105449812 B CN105449812 B CN 105449812B
- Authority
- CN
- China
- Prior art keywords
- air
- flow
- mobile phone
- expander
- generating mechanism
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/32—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from a charging set comprising a non-electric prime mover rotating at constant speed
-
- 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
- H02K35/04—Generators with reciprocating, oscillating or vibrating coil system, magnet, armature or other part of the magnetic circuit with moving coil systems and stationary magnets
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/18—Structural association of electric generators with mechanical driving motors, e.g. with turbines
- H02K7/1869—Linear generators; sectional generators
- H02K7/1876—Linear generators; sectional generators with reciprocating, linearly oscillating or vibrating parts
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers
Abstract
A kind of air-flow charging device applied to mobile phone, including air-flow expander, generating mechanism, power collector；The air-flow expander includes inlet and outlet, and the air-flow expander is arranged on the interior of mobile phone, and external air flow becomes strong air-flow and flowed out by the outlet of the air-flow expander after entering from the import of the air-flow expander；The generating mechanism is arranged on the exit of the air-flow expander, and electric energy is produced under the exit stream pressure effect of the air-flow expander；The power collector electrically connects with the generating mechanism, collects electric energy caused by the generating mechanism and stores.The invention provides a kind of air-flow charging device for being built in mobile phone, generated electricity by using the kinetic energy of the air-flow of external environment, solve the power demand of existing mobile phone, on the premise of being not required to substantially transform mobile phone, realize the function of charging at any time.
Description
Technical field
The present invention relates to mobile phone charging field, more particularly to a kind of air-flow charging device applied to mobile phone.
Background technology
At present, mobile phone is just turning into the focus of technology development, and whether processor, internal memory or screen display technology all exist
Rapid development, cell phone processor performance is more and more stronger, and internal memory is increasing, and Showing Effectiveness On Screen is become better and better, and unique development is slow
Slow is exactly battery technology, and for the mobile terminal including mobile phone, battery is just turning into the technical bottleneck of whole equipment,
Although mobile phone, with the development of technology, there is increasing function as mobile communication facility, for example, see video, listen music,
Navigation etc., but its most basic or communication function, if mobile phone can not keep prolonged working condition, performance powerful again
It is more again also not find a place where one uses one's talents, due to the limitation and the requirement in long cruising time of battery technology, the stronger processor of performance, display
The stronger screen of effect can not be applied on mobile phone, hinder the development and progress of mobile phone technique.
For the continuation of the journey bottleneck of mobile phone, there are many different technological means, such as using high capacity cell, and such as use
Big charging current.Battery of mobile phone is usually lithium polymerization cell, its specific power density is certain, the more big then volume of battery capacity
Bigger weight is heavier, battery capacity greatly then mobile phone can not do it is very thin frivolous；Because the characteristic of lithium battery, charging voltage are generally solid
5 volts or so are scheduled on, the charging interval can be shortened using big charging current, user is obtained within the short charging interval enough
Electricity, shortcoming is to need to use supporting large current charge device, and general user will not carry with charger.
The content of the invention
The present invention proposes a kind of air-flow charging device applied to mobile phone, can be charged at any time for mobile phone, solve user's
Emergent demand, avoid the embarrassment of mobile phone out of power when user needs to use mobile communication function.
Technical scheme provided by the invention is as follows：
A kind of air-flow charging device applied to mobile phone, including air-flow expander, generating mechanism, power collector；It is described
Air-flow expander includes inlet and outlet, and the air-flow expander is arranged on the interior of mobile phone, and external air flow is from the air-flow
The import of expander becomes strong air-flow and flowed out by the outlet of the air-flow expander after entering；The generating mechanism is set
Put in the exit of the air-flow expander, electric energy is produced under the exit stream pressure effect of the air-flow expander；Institute
State power collector to electrically connect with the generating mechanism, collect electric energy caused by the generating mechanism and store.
A kind of charging device to be generated electricity using airflow kinetic energy for being built in mobile phone of present invention invention, solves cellphone subscriber's
Emergent charging demand.
It is further preferred that the generating mechanism includes vibrating diaphragm, coil, magnet；The vibrating diaphragm produces under force
Deformation, lose deformation recovery after the effect of power；The magnet is arranged on the vibrating diaphragm rear, and magnetic is formed at the vibrating diaphragm rear
；The coil is fixed on the vibrating diaphragm rear and surrounded by the magnetic field, coil straight line under the drive of the vibrating diaphragm
Motion, the coil movement direction is perpendicular to the magnetic induction line direction in the magnetic field.
In the present invention, the electricity generating principle of generating mechanism is coil movement cutting magnetic induction line, and vibrating diaphragm drives coil movement.
It is further preferred that the generating mechanism is loudspeaker.
In the present invention, loudspeaker has entire infrastructure necessary to the generating of generating mechanism, therefore loudspeaker can be used for generating electricity.
It is further preferred that the generating mechanism also includes switching switch, the switching switch is electrically connected with the loudspeaker
Connect, the switching switch makes loudspeaker be in different mode of operations, including beep pattern and power generation mode.
In the present invention, switching switch makes loudspeaker be in different working conditions, avoids loudspeaker from being sent out when playing sound
Electricity.
It is further preferred that the generating mechanism also includes indicator lamp, the indicator lamp electrically connects with the loudspeaker, when
When the loudspeaker is in different mode of operations, the indicator lamp is turned on and off.
In the present invention, indicator lamp is used to refer to the different working modes of loudspeaker.
It is further preferred that the air-flow expander is arranged near the interior of mobile phone speaker port.
In the present invention, the kinetic energy of outer gas stream is efficiently utilized using air-flow expander, improves generating efficiency.
It is further preferred that also including rectifier, the rectifier electrically connects with the power collector, the rectifier
The electric energy that the power collector stores is converted into direct current.
In the present invention, using rectifier by electric energy rectification caused by generating mechanism, direct current is formed.
It is further preferred that also including pressure regulator, the pressure regulator electrically connects with the rectifier, battery of mobile phone, by institute
State direct current and the battery of mobile phone is transferred to specific voltage.
In the present invention, the direct current of output is set to meet charging mobile phone battery voltage standard using pressure regulator.
It is further preferred that the air-flow expander also includes elastic plectrum, the elastic plectrum is arranged on the air-flow
The entrance of expander, it is turned on and off the import of the air-flow expander.
In the present invention, air-flow expander opening sets the flow reversal of plectrum entry deterrence, makes device more effective
Utilization airflow kinetic energy.
The technical effects of the invention are that：
The invention provides a kind of air-flow charging device for being built in mobile phone, by using the kinetic energy of the air-flow of external environment
To generate electricity, solve the power demand of existing mobile phone, it is contemplated that the structure of loudspeaker, using mobile phone boombox as sending out
The characteristics of major part of motor structure, taking full advantage of the existing parts of mobile phone, while being directed to vibrating power-generation, introduces a small amount of electronics
Element, a whole set of perfect air-flow charging device is formed with mobile phone speaker, on the premise of being not required to substantially transform mobile phone, realized
The function that charges at any time.
Brief description of the drawings
Below by a manner of clearly understandable, preferred embodiment is described with reference to the drawings, to a kind of gas applied to mobile phone
Above-mentioned characteristic, technical characteristic, advantage and its implementation of current charge device are further described.
Fig. 1 is the primary structure schematic diagram of air-flow expander in the present invention；
Fig. 2 is a kind of complete structure schematic diagram of air-flow charging device applied to mobile phone of the invention；
Drawing reference numeral explanation：
10- air-flow expanders；11- imports；12- elastic plectrums；13- is exported；20- generatings mechanism；21- loudspeakers；22- is cut
Change switch；23- indicator lamps；30- power collectors；40- rectifiers；50- pressure regulators.
Embodiment
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, control is illustrated below
The embodiment of the present invention.It should be evident that drawings in the following description are only some embodiments of the present invention, for
For those of ordinary skill in the art, on the premise of not paying creative work, other can also be obtained according to these accompanying drawings
Accompanying drawing, and obtain other embodiments.
To make simplified form, part related to the present invention is only schematically show in each figure, they are not represented
Its practical structures as product.In addition, so that simplified form readily appreciates, there is identical structure or function in some figures
Part, one of those is only symbolically depicted, or only marked one of those.Herein, "one" is not only represented
" only this ", the situation of " more than one " can also be represented.
Embodiment one
A kind of air-flow charging device applied to mobile phone, including air-flow expander 10, generating mechanism 20, power collector
30；Air-flow expander 10 includes import 11 and outlet 13, is arranged on the interior of mobile phone, and external air flow is from air-flow expander 10
Import 11 becomes strong air-flow after entering and flowed out by the outlet 13 of air-flow expander 10；Generating mechanism 20 is arranged on air-flow
At the outlet 13 of expander 10, electric energy is produced under stream pressure effect at the outlet 13 of air-flow expander 10；Power collector
30 electrically connect with generating mechanism 20, collect electric energy caused by generating mechanism 20 and store.Optionally, air-flow expander 10 also includes
Elastic plectrum 12, the elastic plectrum 12 are arranged at the import 11 of the air-flow expander 10, are turned on and off the air-flow
The import 11 of expander 10.
In the present embodiment, air-flow charging device includes air-flow expander 10, generating mechanism 20, power collector 30.Air-flow
The structure of expander 10 now exists as shown in figure 1, import 11 of the air-flow through air-flow expander 10 enters in air-flow expander 10
Certain air pressure, ambient pressure may be greater than or less than air pressure in air-flow expander 10, if ambient pressure is more than air-flow expander 10
Interior air pressure, ambient pressure make air-flow more enter air-flow expander 10；If ambient pressure is less than air pressure in air-flow expander 10,
The interior air-flow of air-flow expander 10 reversely toward the flowing of the outlet of air-flow expander 10 13, drives elastic plectrum 12, elastic plectrum 12 is to gas
The stream import 11 of expander 10 is stirred, and the import 11 of closing air-flow expander 10, prevents the interior air-flow reverse flow of air-flow expander 10,
Finally, the interior air-flow of air-flow expander 10 is by the outflow of outlet 13.There is the aperture of densification the outlet of air-flow expander 10 13, forms air-flow
Scattered intensive gas column, because the power that air-flow is applied to generating mechanism 20 is certain, when air-flow forms scattered small gas column, one
Determine to increase the lifting surface area of generating mechanism 20 in degree, be that generating mechanism is abundant so as to increase the power suffered by generating mechanism 20
Deformation, make full use of airflow kinetic energy.
After airflow kinetic energy is converted into electric energy by generating mechanism 20, collected by power collector 30, power collector 30 can be with
It is considered as the electric capacity of a Large Copacity, energy is filled to it using electric energy caused by generating mechanism 20, is released after power collector 30 is fully charged
Put, avoid generating mechanism 20 to a certain extent caused by Weak current be depleted, improve the generating of device to greatest extent
Efficiency.
Embodiment two
Embodiment two is another embodiment based on embodiment one, as shown in Fig. 2 except the structure of embodiment, is generated electricity
Mechanism 20 includes vibrating diaphragm, coil, magnet；Vibrating diaphragm produces deformation under force, loses deformation recovery after the effect of power；Magnet
Vibrating diaphragm rear is arranged on, magnetic field is formed at vibrating diaphragm rear；Coil is fixed on vibrating diaphragm rear and surrounded by magnetic field, and coil is in vibrating diaphragm
Lower linear motion is driven, coil movement direction is perpendicular to the magnetic induction line direction in magnetic field.Preferably, generating mechanism 20 is loudspeaker
21.Optionally, generating mechanism 20 also includes switching switch 22, and switching switch 22 electrically connects with loudspeaker 21, and switching switch 22 makes
Loudspeaker 21 is in different mode of operations, including beep pattern and power generation mode.Optionally, generating mechanism 20 also includes instruction
Lamp 23, indicator lamp 23 are electrically connected with loudspeaker 21, and when loudspeaker 21 is in different mode of operations, indicator lamp 23 is opened or closed
Close.Preferably, air-flow expander 10 is arranged near 21 mouthfuls of interior of mobile phone loudspeaker.
In the present embodiment, generating mechanism 20 includes vibrating diaphragm, coil, magnet.Generating mechanism 20 is sent out using electromagnetic induction principle
Electricity, coil cutting magnetic induction line, then induced electromotive force is produced in coil, if coil forms loop, have electric current generation in this coil, this
Device is exactly to realize what is generated electricity around electromagnetic induction principle.
Air-flow expander 10 is arranged on the opening of mobile phone speaker 21, is to utilize airflow kinetic energy, mobile phone as far as possible
User can by by mobile phone speaker 21 be aligned wind come direction either directly with mouth towards the air blowing of 21 mouthfuls of mobile phone speaker.
Generating mechanism 20 is arranged at the outlet of air-flow expander 10 13, and generating mechanism 20 includes vibrating diaphragm, coil, magnet.Shake
The outlet 13 of film alignment air-flow expander 10, the airflow function with certain flow rate is on the vibrating diaphragm with certain area, vibrating diaphragm
Displacement or deformation (partial dislocation) under force, be provided with coil and magnet after vibrating diaphragm, its coil directly with vibrating diaphragm phase
Connect and fix, magnet can be permanent magnet, and magnet inner hollow, such magnet inner space has very strong transverse magnetic field, line
Circle is arranged on internal magnetic field, when coil moves cutting magnetic induction line under the drive of vibrating diaphragm, makes to produce induced electromotive force in coil, this
Shi Ruo joins end to end coil, then coil inside produces electric current.
View of the above, it will be seen that generating mechanism 20 has similar primary structure with loudspeaker 21, and utilize
Identical electromagnetic induction principle, unlike, loudspeaker 21 is to promote magnetic field interior loop motion, coil movement band using electricity
Dynamic diaphragm oscillations, vibrating diaphragm drive airwaves, are delivered to ear and form sound, and generating mechanism 20 is reversely to be promoted using air-flow
Vibrating diaphragm moves, and band moving winding cutting magnetic induction line, produces voltage.Therefore generating mechanism 20 is done with loudspeaker 21, it is effectively utilized hand
The existing parts of machine, avoid the volume that mobile phone is dramatically increased when introducing charging device.
Generating mechanism 20 switchs 22 and loudspeaker except loudspeaker 21, in addition to switching switch 22 and indicator lamp 23, switching
21 series connection, switching switch 22 make loudspeaker 21 switch under normal beep pattern or power generation mode, when loudspeaker 21 is in normal
Beep pattern, switching switch 22, which is opened, makes the interior loop of loudspeaker 21 be disconnected with peripheral charging circuit, forms open circuit.When loudspeaker 21
In power generation mode, switching, which switchs 22 closures, makes loudspeaker 21 form loop with peripheral circuit, after electric current entrance is produced in coil
Continuous circuit, is further collected utilization.Indicator lamp 23 makes cellphone subscriber intuitively understand which kind of Working mould current speaker 21 is in
Formula, indicator lamp 23 is directly in parallel with switching switch 22, and when switching switch 22 is in closure state, loudspeaker 21 is in generating mould
Formula, now indicator lamp 23 can also light, remind user now loudspeaker 21 which kind of mode of operation be in.
Embodiment three
Embodiment three is another improved embodiment based on embodiment two, as shown in Fig. 2 also including optional rectification
Device 40 and optional pressure regulator 50, rectifier 40 electrically connect with power collector 30, and the electric energy that power collector 30 is stored turns
Turn to direct current.Pressure regulator 50 is electrically connected with rectifier 40, battery of mobile phone, and direct current is transferred into mobile phone electricity with specific voltage
Pond.
In the present embodiment, it is related to the peripheral circuit being connected with generating mechanism 20, mainly includes rectifier 40 and pressure regulator
50, for pressure regulation, rectification, the electric energy from power collector 30 is formed feature voltage dc, to be filled to battery of mobile phone
Electricity.Mentioned above, generating mechanism 20 has the similar structure of loudspeaker 21, is exactly a loudspeaker 21 in other words.Work as loudspeaker
When 21 use generate electricity, coil and vibrating diaphragm deform upon in the presence of air-flow, and airflow function recovers deformation after disappearing, equivalent to
One reciprocating motion, caused electric energy in coil, its waveform should be an average more than zero between zero and crest voltage
Waveform, and power collector 30 has the structure of similar electric capacity, the electricity released also has similar waveform configuration, in order that
Such waveform voltage can be utilized, it is necessary to which rectifier 40 and pressure regulator 50, it is in the range of certain voltage to make output current
The direct current of fluctuation, rectifier 40 specifically can add inverted L shape rectification circuit to add shunt regulating circuit using bridge rectifier
Structure realizes rectifying and wave-filtering voltage stabilizing, electricity caused by pressure electricity-generating is stored in energy-storage units, and pressure regulator 50 can use
Boost converters, its core are boost chopper, and principle is with inductance booster tension and keeps voltage with electric capacity, are considered
To the integrated level of mobile phone, highly integrated synchronous rectified boost IC is often used currently for lithium battery, it is real by an integrated IC
Existing rectification and pressure regulation.
It should be noted that above-described embodiment can independent assortment as needed.Described above is only the preferred of the present invention
Embodiment, it is noted that for those skilled in the art, do not departing from the premise of the principle of the invention
Under, some improvements and modifications can also be made, these improvements and modifications also should be regarded as protection scope of the present invention.
Claims (8)
1. a kind of air-flow charging device applied to mobile phone, it is characterised in that received including air-flow expander, generating mechanism, electric energy
Storage；The air-flow expander includes inlet and outlet, and the air-flow expander is arranged on the interior of mobile phone, and the air-flow expands
Big device also includes elastic plectrum, and the elastic plectrum is arranged on the entrance of the air-flow expander, is turned on and off the gas
Flow the import of expander；There is the aperture of densification the outlet of air-flow expander, air-flow is formed scattered intensive gas column；External air flow from
The import of the air-flow expander becomes strong air-flow and flowed out by the outlet of the air-flow expander after entering；The hair
Motor structure is arranged on the exit of the air-flow expander, is produced under the exit stream pressure effect of the air-flow expander
Electric energy；The power collector electrically connects with the generating mechanism, collects electric energy caused by the generating mechanism and stores.
2. air-flow charging device as claimed in claim 1, it is characterised in that the generating mechanism includes vibrating diaphragm, coil, magnetic
Body；The vibrating diaphragm produces deformation under force, loses deformation recovery after the effect of power；The magnet is arranged on the vibrating diaphragm
Rear, magnetic field is formed at the vibrating diaphragm rear；The coil is fixed on the vibrating diaphragm rear and surrounded by magnetic field, and the coil exists
Moved along a straight line under the drive of the vibrating diaphragm, the coil movement direction is perpendicular to the magnetic induction line direction in the magnetic field.
3. air-flow charging device as claimed in claim 2, it is characterised in that the generating mechanism is loudspeaker.
4. device as claimed in claim 3, it is characterised in that the generating mechanism also includes switching switch, and the switching is opened
Pass electrically connects with the loudspeaker, and the switching switch makes loudspeaker be in different mode of operations, including beep pattern and hair
Power mode.
5. air-flow charging device as claimed in claim 4, it is characterised in that the generating mechanism also includes indicator lamp, described
Indicator lamp is electrically connected with the loudspeaker, and when the loudspeaker is in different mode of operations, the indicator lamp is opened or closed
Close.
6. the air-flow charging device as described in any one of claim 1-5 claim, it is characterised in that the air-flow expander
It is arranged near the interior of mobile phone speaker port.
7. the air-flow charging device as described in any one of claim 1-5 claim, it is characterised in that also including rectifier,
The rectifier is electrically connected with the power collector, and the electric energy that the power collector stores is converted into directly by the rectifier
Stream electricity.
8. air-flow charging device as claimed in claim 7, it is characterised in that also including pressure regulator, the pressure regulator with it is described
Rectifier, battery of mobile phone electrical connection, the battery of mobile phone is transferred to by the direct current with specific voltage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610003290.4A CN105449812B (en) | 2016-01-04 | 2016-01-04 | A kind of air-flow charging device applied to mobile phone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610003290.4A CN105449812B (en) | 2016-01-04 | 2016-01-04 | A kind of air-flow charging device applied to mobile phone |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105449812A CN105449812A (en) | 2016-03-30 |
| CN105449812B true CN105449812B (en) | 2018-04-06 |
Family
ID=55559718
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610003290.4A Expired - Fee Related CN105449812B (en) | 2016-01-04 | 2016-01-04 | A kind of air-flow charging device applied to mobile phone |
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| Country | Link |
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| CN (1) | CN105449812B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3913764A1 (en) * | 2020-05-20 | 2021-11-24 | Nokia Technologies Oy | Charging apparatus |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202353423U (en) * | 2011-10-27 | 2012-07-25 | 比亚迪股份有限公司 | Electronic product using sound for generating electricity |
| CN203286440U (en) * | 2013-05-28 | 2013-11-13 | 朱星程 | Novel noise power generation LED (Light-Emitting Diode) street lamp |
| CN203708066U (en) * | 2014-02-10 | 2014-07-09 | 肖金丽 | Mobile phone charged in voice-activated mode |
| CN104022617A (en) * | 2014-06-18 | 2014-09-03 | 武汉理工大学 | Noise power generating device |
-
2016
- 2016-01-04 CN CN201610003290.4A patent/CN105449812B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202353423U (en) * | 2011-10-27 | 2012-07-25 | 比亚迪股份有限公司 | Electronic product using sound for generating electricity |
| CN203286440U (en) * | 2013-05-28 | 2013-11-13 | 朱星程 | Novel noise power generation LED (Light-Emitting Diode) street lamp |
| CN203708066U (en) * | 2014-02-10 | 2014-07-09 | 肖金丽 | Mobile phone charged in voice-activated mode |
| CN104022617A (en) * | 2014-06-18 | 2014-09-03 | 武汉理工大学 | Noise power generating device |
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| CN105449812A (en) | 2016-03-30 |
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Granted publication date: 20180406 Termination date: 20190104 |