CN105490583A - Charging apparatus and mobile terminal - Google Patents
Charging apparatus and mobile terminal Download PDFInfo
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- CN105490583A CN105490583A CN201510866743.1A CN201510866743A CN105490583A CN 105490583 A CN105490583 A CN 105490583A CN 201510866743 A CN201510866743 A CN 201510866743A CN 105490583 A CN105490583 A CN 105490583A
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- 238000007600 charging Methods 0.000 title claims abstract description 38
- 238000006243 chemical reaction Methods 0.000 claims abstract description 64
- 238000010521 absorption reaction Methods 0.000 claims abstract description 42
- 239000003990 capacitor Substances 0.000 claims description 7
- 239000012814 acoustic material Substances 0.000 claims description 2
- 238000004146 energy storage Methods 0.000 abstract 2
- 230000000694 effects Effects 0.000 description 11
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 239000011800 void material Substances 0.000 description 2
- 239000011787 zinc oxide Substances 0.000 description 2
- 239000011358 absorbing material Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
- H02N2/00—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction
- H02N2/18—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction producing electrical output from mechanical input, e.g. generators
Abstract
The invention discloses a charging apparatus and a mobile terminal. The charging apparatus comprises a sound absorption module, a sound energy/electric energy conversion module and an electric energy storage output module, wherein the sound absorption module is used for absorbing sound energy and overlaying the sound energy; the sound energy/electric energy conversion module is used for converting the sound energy overlaid by the sound absorption module into electric energy; and the electric energy storage output module is used for storing the electric energy from the sound energy/electric energy conversion module and outputting the electric energy. According to the charging apparatus, the sound energy absorbed by the sound absorption module can be overlaid to provide enough sound energy to the sound energy/electric energy conversion module so as to ensure that the sound waves can be effectively converted into electric charges; the effective conversion from the sound waves to the electric charges can be realized even if in a low-noise environment; the electric energy generated by sound wave vibration can be transmitted in an oriented manner to a charging unit to be effectively stored in time. Meanwhile, the charging apparatus can absorb noises in all kinds of public places, road traffic systems and the like so as to effectively reduce noises and to protect the environment consequently.
Description
Technical field
The present invention relates to electronic technology field, particularly a kind of charging device and mobile terminal.
Background technology
In May, 2011, Korean science man has invented sound charger, utilizes sound to change into electric energy and charges the battery.This new technology sound being converted into electric energy, makes mobile phone can not only obtain electric energy from call, even if at holding state, also charges the phone by background noise, music.The sound charger of prior art is by superfine zinc oxide electrical wire clip between two electrodes, then loads onto a sound-absorbing pad above, when sound wave arrives at, sound-absorbing pad will vibrate, thus stretch or compression zinc oxide electric wire, make it generation current, charge the battery.But the sound charger of prior art can not utilize fainter sound to change into electric energy, is difficult to the charging effect reaching function admirable in low noise environment.
Summary of the invention
The technical problem to be solved in the present invention is that the sound charger in order to overcome prior art can not utilize fainter sound to change into electric energy, the defect that charging effect is not good in low noise environment, there is provided a kind of charging device and mobile terminal, this charging device can be mobile terminal charging in low noise environment.
The present invention solves above-mentioned technical problem by following technical proposals:
A kind of charging device, its feature is, it comprises:
Sound-absorbing module, for absorbing acoustic energy and being superposed by described acoustic energy;
Acoustic energy electric energy conversion module, for being converted to electric energy by the acoustic energy after described sound-absorbing module superposition;
Power storage output module, for storing the described electric energy of described acoustic energy electric energy conversion module, and exports described electric energy.
In this programme, sound-absorbing module can absorb faint acoustic energy and superpose the acoustic energy absorbed, acoustic energy after superposition is converted to electric energy by acoustic energy electric energy conversion module and is stored to power storage output module, and power storage output module orientation exports this electric energy, is equipment charge.Many times are exaggerated greatly because charging device superposes to acoustic energy the sonic wave amplitude making the acoustical vibration amplitude of acoustic energy electric energy conversion module surface reception absorb than sound-absorbing Modular surface, the mechanical wave of different acoustic vibration intensity can be realized effectively to be converted into electric energy, and by the enough supply arrangement chargings of the electric energy after the conversion of acoustic energy electric energy conversion module, ensure that charging effect.
Preferably, described charging device also comprises charhing unit, and described power storage output module exports described electric energy to described charhing unit.Charhing unit exports specified current/voltage, thus provides stable electric energy for equipment, and proterctive equipment can not electronic device because electric energy is fluctuated in infringement equipment.
Preferably, described sound-absorbing module comprises some sound absorption units, described sound absorption unit forming array, and each sound absorption unit comprises: some sound-absorbing elements, described sound-absorbing element forming array;
Each sound absorption unit also comprises leading note superimposed body, and described leading note superimposed body is arranged between described sound absorption unit and described acoustic energy electric energy conversion module; Described leading note superimposed body comprises N layer leading note media array, wherein 1≤N, described leading note media array comprises some leading note medium elements, described leading note medium element is cone column, and the bottom of leading note medium element in the top of leading note medium element in every layer of leading note media array and adjacent leading note media array is positioned at same plane;
As N=1, the bottom of described leading note medium element is installed with the bottom in described sound-absorbing element, and the top of described leading note medium element is installed with in described acoustic energy electric energy conversion module;
As N>1, the top of the leading note medium element in L layer leading note media array is installed with the bottom of the leading note medium element in L+1 layer leading note media array, wherein 1≤L≤N-1; The bottom of the leading note medium element in the 1st layer of leading note media array is installed with the bottom in described sound-absorbing element, and the top of the leading note medium element in n-th layer leading note media array is installed with in described acoustic energy electric energy conversion module; And along the direction away from described sound absorption unit, the quantity of the leading note medium element in every layer of leading note media array reduces successively;
The quantity of the leading note medium element in the 1st layer of leading note media array is less than or equal to the quantity of the described sound-absorbing element in each sound absorption unit.
In this programme, realize the mechanical wave of different acoustic vibration intensity to superpose by sound-absorbing array and leading note superimposed body, charging device also can realize effective conversion of electric energy in lower noise environment, for equipment provides required electric energy.
Preferably, the quantity of the leading note medium element of n-th layer leading note media array is 1.Because acoustic energy electric energy conversion module is not strong to the conversion capability of faint mechanical wave, therefore the quantity arranging last one deck leading note media array is 1, the acoustic energy that sound-absorbing element in each sound absorption unit absorbs all can be converged in a bit, this point can produce larger sound wave, effectively can trigger acoustic energy electric energy conversion module and produce charge inducing.
Preferably, the gap in described leading note superimposed body is filled with acoustic material.This programme makes acoustic energy propagate by certain direction, namely presses layer along leading note medium element from the coarse to fine and propagates to the direction of acoustic energy electric energy conversion module successively, the acoustic energy of absorption is converged in a bit as far as possible.
Preferably, described sound-absorbing element is triangle taper.The sound-absorbing element of triangle taper can absorb the acoustic energy from all directions to greatest extent.
Preferably, described acoustic energy electric energy conversion module comprises the annular seal space of cuboid, and the madial wall of described annular seal space is provided with piezoelectrics.
Preferably, described power storage output module comprises power storage output circuit, and described power storage output circuit comprises the first diode, the second diode, capacitor; The anode of described first diode is connected with the output of described acoustic energy electric energy conversion module, and the negative electrode of described first diode is connected with the anode of described second diode, and the negative electrode of described second diode is connected with the input of described charhing unit; Described capacitor one end is connected to the negative electrode of described first diode, and the other end is connected to the output of described acoustic energy electric energy conversion module and the input of described charhing unit.Wherein D1 and D2 be utilize metal-semiconductor technique to form zero open diode, as long as the characteristic of this diode is when positive bias voltage is greater than 0V, will conducting, because this reducing switching loss, improve efficiency.
Preferably, described power storage output circuit also comprises operational amplifier, the end of oppisite phase of described operational amplifier is connected with the negative electrode of described second diode and connects with the output of described operational amplifier, the in-phase end ground connection of described operational amplifier, the output of described operational amplifier is connected with the input of described charhing unit.The electric energy that operational amplifier makes acoustic energy electric energy conversion module export only exports charhing unit to by power storage output module; the electric energy of charhing unit can not recoil to power storage output module; operational amplifier achieves the directional transmissions of electric energy, thus the electronic device such as the diode protected in power storage output circuit and electric capacity.
The present invention also comprises a kind of mobile terminal, and its feature is, described mobile terminal comprises charging device as above.
Positive progressive effect of the present invention is: the acoustic energy that sound-absorbing module absorbs can superpose by the present invention, to provide the acoustic energy that acoustic energy electric energy conversion module is enough, ensure that acoustic energy is effectively converted into electric energy, therefore charging device of the present invention also can realize effective conversion of acoustic energy-electric energy in low noise environment, and electric energy orientation acoustic vibration produced exports, and is the equipment charges such as mobile terminal.Meanwhile, the present invention can absorb the noise of all kinds of public place, highway traffic system etc., reaches the function effectively reducing noise, thus protection of the environment.
Accompanying drawing explanation
Fig. 1 is the structural representation of the charging device of the embodiment of the present invention 1.
Fig. 2 is the structural representation of the charging device of the embodiment of the present invention 2.
Fig. 3 is the structural representation of the sound absorption unit of the embodiment of the present invention 2.
Fig. 4 is the arrangement schematic diagram of some sound absorption units of the embodiment of the present invention 2.
Fig. 5 is a kind of power storage output circuit of the power storage output module of the embodiment of the present invention 2.
Fig. 6 is the another kind of power storage output circuit of the power storage output module of the embodiment of the present invention 2.
Fig. 7 is the structural representation of the sound absorption unit of the embodiment of the present invention 3.
Fig. 8 is the structural representation of the sound absorption unit of the embodiment of the present invention 4.
Embodiment
Mode below by embodiment further illustrates the present invention, but does not therefore limit the present invention among described scope of embodiments.
Embodiment 1
Fig. 1 shows a kind of charging device, comprises sound-absorbing module 1, acoustic energy electric energy conversion module 2, power storage output module 3, and sound-absorbing module 1 is for absorbing acoustic energy and being superposed by acoustic energy; Acoustic energy electric energy conversion module 2 is converted to electric energy for the acoustic energy after sound-absorbing module 1 being superposed; Electric energy for storing the electric energy of acoustic energy electric energy conversion module 2, and exports by power storage output module 3.
Because acoustic energy electric energy conversion module 2 is to the electric energy transfer capability weak effect of faint sound wave, therefore first by sound-absorbing module 1, the acoustic energy absorbed is superposed, make the acoustical vibration amplitude on acoustic energy electric energy conversion module 2 surface amplify many times than the sonic wave amplitude on sound-absorbing module 1 surface, the charge conversion ability of acoustic energy electric energy conversion module 2 in low noise environment can be improved.The present embodiment, achieves the effective conversion of acoustic energy to electric energy, and electric energy orientation can be exported as equipment charge.Meanwhile, the present embodiment can absorb the noises such as all kinds of public place, highway traffic system, reaches the function effectively reducing noise, thus protection of the environment.
Embodiment 2
Fig. 2-5 shows the another kind of implementation of the charging device of the present embodiment.The present embodiment is substantially the same manner as Example 1, and as shown in Figure 2, difference is that charging device also comprises charhing unit 4, and power storage output module 3 exports electric energy to charhing unit 4, and charhing unit 4 provides required electric energy for equipment.
In the present embodiment, the electric energy orientation that acoustic energy electric energy conversion module 2 is produced according to acoustic vibration principle be transferred to charhing unit 4, store timely and effectively.Charhing unit 4 exports specified current/voltage, thus provides stable electric energy for equipment, and proterctive equipment can not electronic device because electric energy is fluctuated in infringement equipment.Wherein, acoustic energy electric energy conversion module 2 comprises the annular seal space of cuboid, and the madial wall of annular seal space is provided with piezoelectrics.
In the present embodiment, sound-absorbing module 1 can comprise some sound absorption units, sound absorption unit forming array, each sound absorption unit comprises some sound-absorbing elements 11 of being made up of sound-absorbing material and leading note superimposed body 12, and leading note superimposed body 12 is arranged between sound absorption unit and acoustic energy electric energy conversion module 2.Wherein, the shape of sound-absorbing element 11 adopts the shape being convenient to sound collecting usually, as cone, is specifically as follows triangle taper, cone column etc., and sound-absorbing element 11 forming array, like this can the reception of maximum efficiency from the input of the acoustic energy of all directions.
Leading note superimposed body 12 comprises N (1≤N) layer leading note media array, and also namely leading note superimposed body 12 only can establish one deck leading note media array, and also can establish multilayer, this is arranged according to the actual requirements voluntarily.But it should be noted that, when being provided with multilayer leading note media array, along the direction away from sound absorption unit, the quantity of the leading note medium element 121 in every layer of leading note media array reduces successively, does not so have the effect of superposition acoustic energy.Every layer of leading note media array comprises some leading note medium elements 121, leading note medium element 121 forming array.Wherein, leading note medium element 121 can be horn-like, can be pyrometric cone shape, can be cone column, also can be arbitrarily from the coarse to fine and sound can be converged to the shape of thinner one end from thicker one end, here consider the realization of production technology, leading note medium element 121 is set to cone column.In addition, the bottom of the leading note medium element 121 in the leading note media array that the top of the leading note medium element 121 in every layer of leading note media array is adjacent is positioned at same plane, the bottom of the leading note medium element 121 in the top of the leading note medium element 121 also namely in the 1st layer of leading note media array and the 2nd layer of leading note media array is positioned at same plane, the bottom of the leading note medium element 121 in the top of the leading note medium element 121 in the 2nd layer of leading note media array and the 3rd layer of leading note media array is positioned at same plane, by that analogy, make seamless connection between every layer of leading note media array like this, thus reach propagation, converge the effect of acoustic energy.
As N=1, also one deck leading note media array is namely only provided with, the bottom of leading note medium element 121 is installed with the bottom in sound-absorbing element 11, and the top of leading note medium element 121 is installed with in acoustic energy electric energy conversion module 2, and the quantity of leading note medium element 121 is less than or equal to the quantity of sound-absorbing element 11.
As N>1, when being also namely provided with multilayer leading note media array, the top of the leading note medium element 121 in L layer leading note media array is installed with the bottom of the leading note medium element 121 in L+1 (1≤L≤N-1) layer leading note media array, and along the direction away from described sound absorption unit 11, the quantity of the leading note medium element 121 in every layer of leading note media array reduces successively.The bottom of the leading note medium element 121 in the 1st layer of leading note media array is installed with the bottom in sound-absorbing element 11, and the quantity of leading note medium element 121 is less than or equal to the quantity of sound-absorbing element 11, namely a leading note medium element 121 can arrange multiple sound-absorbing element 11.The top of the leading note medium element 121 in n-th layer leading note media array is installed with in acoustic energy electric energy conversion module 2.
And learn through practice, when the quantity of the leading note medium element 121 of n-th layer leading note media array is 1, also the acoustic energy absorbed by multiple sound-absorbing element 11 passes through the conduction layer by layer of leading note superimposed body 12, until a leading note medium element 121 in last one deck leading note media array, the acoustic energy convergence degree now absorbed is the highest, and also namely acoustic energy conversion effect is best.
Fig. 3 shows a kind of specific implementation of sound absorption unit, and as shown in Figure 3, leading note superimposed body 12 comprises some layers of leading note media array, and leading note medium element 121 top of cone column is towards acoustic energy electric energy conversion module 2.The bottom of the leading note element 121 in the 1st layer of leading note media array is provided with 4 sound-absorbing elements 11, then the quantity of the leading note element 121 in the 1st layer of leading note media array is 1/4 of sound-absorbing element 11 quantity.The bottom of each leading note medium element 121 from the 2nd layer of leading note media array is provided with 2 leading note medium elements 121, the quantity of the leading note medium element 121 therefore in every layer of leading note media array reduces half compared to last layer, until final layer, the quantity of the leading note medium element 121 in final layer leading note media array is 2, therefore most of acoustic energy that sound-absorbing element 11 absorbs can be added to 2 that leading note medium element 121 top of last one deck leading note media array is connected with acoustic energy electric energy conversion module 2 and locate, thus the enough acoustic energy electric energy conversion module 2 of acoustic energy at these 2 places carry out acoustic energy-electric energy conversion.
It should be noted that, the quantity of the leading note medium element 121 in every one deck leading note media array is only less than the quantity of the leading note medium element 121 in last layer leading note media array, the effect that acoustic energy converges, superposes can be realized, therefore leading note medium element 121 can be provided with the leading note medium element 121 of multiple last layer, be not limited to 2 in the present embodiment, can be 3,4 etc., quantity can be determined according to the actual requirements voluntarily.And leading note medium element 121 quantity be installed with bottom leading note medium element 121 in different layers leading note media array can be unequal, even leading note medium element 121 quantity be installed with bottom the leading note medium element 121 in same layer leading note media array also can be unequal.
In addition, in order to improve the conducting effect of acoustic energy, can gap sound insulation by filling material in leading note superimposed body 12, to make acoustic energy all propagate along leading note medium element 121 to its top, reach the object of being carried out by the acoustic energy of absorption to greatest extent converging, superposing.
Further, as shown in Figure 4, each sound absorption unit can form R*T array, and namely sound absorption unit becomes rectangular by R*T aligned transfer, wherein R>=1, T>=1, S
ijrepresent the sound absorption unit (R>=i>=1, T>=j>=1) of the i-th row jth row.In order to improve the effect of superposition acoustic energy, also can arrange leading note superimposed body 12 again between sound absorption unit permutation and acoustic energy electric energy conversion module 2, the leading note superimposed body 12 in set-up mode each sound absorption unit as above, repeats no more herein.
It should be noted that, the sound-absorbing element in each sound absorption unit can be arranged in R*T array format as shown in Figure 4 equally, is not limited to the determinant form that the sound absorption unit shown in Fig. 3 is formed.Equally, the leading note medium element in every layer of leading note media array also can form above-mentioned R*T array format, is not limited to the determinant form shown in Fig. 3.
The power storage output module 3 of the present embodiment comprises power storage output circuit, and Fig. 4 shows a kind of power storage output circuit of the present embodiment, and power storage output circuit comprises the first diode D1, the second diode D2, capacitor C; The anode of the first diode D1 is connected with the output of acoustic energy electric energy conversion module 2, and the negative electrode of the first diode D1 is connected with the anode of the second diode D2, and the negative electrode of the second diode D2 is connected with the input of charhing unit 4; Capacitor C one end is connected to the negative electrode of the first diode D1, and the other end is connected to the output of acoustic energy electric energy conversion module 2 and the input of described charhing unit 4.Wherein D1 and D2 be utilize metal-semiconductor technique to form zero open diode, as long as the characteristic of this diode is when positive bias voltage is greater than 0V, will conducting, because this reducing switching loss, improve efficiency.
Fig. 5 illustrates another kind of power storage output circuit; in order to protect diode and capacitor C; the power storage output circuit of present embodiment also comprises operational amplifier A; the end of oppisite phase of operational amplifier A is connected with the negative electrode of the second diode D2 also and the output of operational amplifier A connects; the in-phase end ground connection of operational amplifier A, the output of operational amplifier A is connected with the input of charhing unit 4.As shown in Figure 5, B node virtual earth, namely the voltage of B point is approximately zero, and simultaneously B point void is disconnected, and namely B point can not the electric current inflow of oriented integrated operational amplifier A.As long as acoustic energy electric energy conversion module 2 realizes the conversion of acoustic energy-electric energy, D1 will conducting, and electric energy is charged to electric capacity C by D1; Due to B point virtual earth, as long as storage of electrical energy on electric capacity C, D2 will conducting, the electric charge be stored in like this on electric capacity C will flow to B point, because B point void is disconnected, electric current directly can flow to C point, enters charhing unit 4, realizes electric energy along the directed real-time Transmission of power storage output module 3 to charhing unit 4, storage.
The present embodiment also provides a kind of mobile terminal, and it can have the charging device shown in Fig. 2-5.This mobile terminal can for comprising mobile phone, panel computer, PDA (PersonalDigitalAssistant, personal digital assistant), POS (PointofSales, point-of-sale terminal), the terminal equipment such as vehicle-mounted computer, be mobile phone below with mobile terminal for example illustrates.
Sound-absorbing module 1 can be arranged on the back side of phone housing, the use of other functions of mobile phone can not be affected like this, and the area at the mobile phone back side is larger, more sound-absorbing element 11 can be set, realize the increase of acoustic energy receiving cross section, such sound-absorbing element 11 can absorb acoustic energy more in superposition lower noise environment.
Acoustic energy electric energy conversion module 2 can be arranged on phone housing, also directly phone housing can be made annular seal space, and establish piezoelectrics at the madial wall of annular seal space, utilize phone housing to realize the corresponding function of acoustic energy electric energy conversion module 2, the acoustic energy absorbed by sound-absorbing module 1 transforms production electric energy.Directly utilize phone housing to realize the function of acoustic energy electric energy conversion module 2, the thickness of mobile phone can be reduced.
Power storage output module 3 can make separately PCB (PrintedCircuitBoard printed circuit board), also can power storage output module 3 be integrated on the mainboard of mobile phone, and be electrically connected with acoustic energy electric energy conversion module 2, to realize object electric energy orientation being exported to battery of mobile phone.
Battery in mobile phone can realize the function of charhing unit 4, and namely the rated voltage of battery stable output normally works to make miscellaneous part in mobile phone.
Embodiment 3
Fig. 6 shows the another kind of specific implementation of sound absorption unit, as shown in Figure 6, the bottom of the leading note element 121 in the 1st layer of leading note media array is provided with 2 sound-absorbing elements 11, then the quantity of the leading note element 121 in the 1st layer of leading note media array is 1/2 of sound-absorbing element 11 quantity.The bottom of each leading note medium element 121 from the 2nd layer of leading note media array is provided with 3 leading note medium elements 121, therefore in every layer of leading note media array, the quantity of leading note medium element 121 reduces about 1/3 compared to last layer, until final layer, the quantity of the leading note medium element 121 in final layer leading note media array is 1, therefore leading note superimposed body 12 can by most of acoustic energy that sound-absorbing element 11 absorbs a bit locating of being connected with acoustic energy electric energy conversion module 2 of leading note medium element 121 top be added in last one deck leading note media array, thus the enough acoustic energy electric energy conversion module 2 of acoustic energy of this point carry out acoustic energy-electric energy conversion.Certainly, if the quantity of leading note medium element 121 is not the multiple of 3 in last layer leading note media array, so remaining 2 or 1 leading note medium element 121 can be installed with separately the bottom of 1 leading note medium element 121 in this layer.
Embodiment 4
Fig. 7 shows another specific implementation of sound absorption unit, as shown in Figure 6, a leading note medium element 121 is provided with in the bottom of each sound-absorbing element 11, the quantity of the leading note medium element 121 now in the 1st layer of leading note media array equals the quantity of the sound-absorbing element 11 in sound absorption unit, and sound-absorbing element 11 and leading note medium element 121 one_to_one corresponding.The bottom of each leading note element from the 2nd layer of leading note media array is provided with 2 leading note medium elements 121, the quantity of the leading note medium element 121 therefore in every layer of leading note media array reduces 1/2 compared to last layer, until final layer, the quantity of the leading note medium element 121 in final layer leading note media array is 1.Now the number needs of sound-absorbing element 11 meets 2
m-1, wherein m is the number of plies of leading note media array in leading note superimposed body 12.According to the structure of above-mentioned realization, it is identical that satisfied 2 leading note medium elements 121 transmit acoustic energy path, like this, at one time, the acoustic vibration long superposition mutually of identical sound source different frequency, the acoustical vibration amplitude finally realizing piezoelectrics surface amplifies 2 than the sonic wave amplitude on sound-absorbing element 11 surface
m-1doubly.Also namely leading note superimposed body 12 sound-absorbing element 11 is absorbed almost all acoustic energy be added to that last one deck leading note medium element 121 top is connected with acoustic energy electric energy conversion module 2 any locate, the focusing effect of now acoustic vibration is best.
Although the foregoing describe the specific embodiment of the present invention, it will be understood by those of skill in the art that this only illustrates, protection scope of the present invention is defined by the appended claims.Those skilled in the art, under the prerequisite not deviating from principle of the present invention and essence, can make various changes or modifications to these execution modes, but these change and amendment all falls into protection scope of the present invention.
Claims (10)
1. a charging device, is characterized in that, comprising:
Sound-absorbing module, for absorbing acoustic energy and being superposed by described acoustic energy;
Acoustic energy electric energy conversion module, for being converted to electric energy by the acoustic energy after described sound-absorbing module superposition;
Power storage output module, for storing the described electric energy of described acoustic energy electric energy conversion module, and exports described electric energy.
2. charging device as claimed in claim 1, it is characterized in that, described charging device also comprises charhing unit, and described power storage output module exports described electric energy to described charhing unit.
3. charging device as claimed in claim 1 or 2, it is characterized in that, described sound-absorbing module comprises some sound absorption units, described sound absorption unit forming array, and each sound absorption unit comprises: some sound-absorbing elements, described sound-absorbing element forming array;
Each sound absorption unit also comprises leading note superimposed body, and described leading note superimposed body is arranged between described sound absorption unit and described acoustic energy electric energy conversion module; Described leading note superimposed body comprises N layer leading note media array, wherein 1≤N, described leading note media array comprises some leading note medium elements, described leading note medium element is cone column, and the bottom of leading note medium element in the top of leading note medium element in every layer of leading note media array and adjacent leading note media array is positioned at same plane;
As N=1, the bottom of described leading note medium element is installed with the bottom in described sound-absorbing element, and the top of described leading note medium element is installed with in described acoustic energy electric energy conversion module;
As N>1, the top of the leading note medium element in L layer leading note media array is installed with the bottom of the leading note medium element in L+1 layer leading note media array, wherein 1≤L≤N-1; The bottom of the leading note medium element in the 1st layer of leading note media array is installed with the bottom in described sound-absorbing element, and the top of the leading note medium element in n-th layer leading note media array is installed with in described acoustic energy electric energy conversion module; And along the direction away from described sound absorption unit, the quantity of the leading note medium element in every layer of leading note media array reduces successively;
The quantity of the leading note medium element in the 1st layer of leading note media array is less than or equal to the quantity of the described sound-absorbing element in each sound absorption unit.
4. charging device as claimed in claim 3, it is characterized in that, the quantity of the leading note medium element of leading note media array described in n-th layer is 1.
5. charging device as claimed in claim 3, it is characterized in that, the gap in described leading note superimposed body is filled with acoustic material.
6. charging device as claimed in claim 3, it is characterized in that, described sound-absorbing element is triangle taper.
7. charging device as claimed in claim 1 or 2, it is characterized in that, described acoustic energy electric energy conversion module comprises the annular seal space of cuboid, and the madial wall of described annular seal space is provided with piezoelectrics.
8. charging device as claimed in claim 2, it is characterized in that, described power storage output module comprises power storage output circuit, and described power storage output circuit comprises the first diode, the second diode, capacitor; The anode of described first diode is connected with the output of described acoustic energy electric energy conversion module, and the negative electrode of described first diode is connected with the anode of described second diode, and the negative electrode of described second diode is connected with the input of described charhing unit; Described capacitor one end is connected to the negative electrode of described first diode, and the other end is connected to the output of described acoustic energy electric energy conversion module and the input of described charhing unit.
9. charging device as claimed in claim 8, it is characterized in that, described power storage output circuit also comprises operational amplifier, the end of oppisite phase of described operational amplifier is connected with the negative electrode of described second diode and connects with the output of described operational amplifier, the in-phase end ground connection of described operational amplifier, the output of described operational amplifier is connected with the input of described charhing unit.
10. a mobile terminal, is characterized in that, described mobile terminal comprises as the charging device in claim 1-9 as described in any one.
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|---|---|---|---|---|
| CN101335463A (en) * | 2007-06-29 | 2008-12-31 | 宋柏君 | Sound energy electricity generating method and apparatus |
| CN101667795A (en) * | 2008-09-02 | 2010-03-10 | 宋华民 | Piezoelectric ceramics sound energy generation plate, piezoelectric ceramics sound energy generation set and piezoelectric ceramics sound energy generator |
| CN103236802A (en) * | 2013-05-02 | 2013-08-07 | 东华大学 | Sound energy power generation device |
| CN103701361A (en) * | 2013-12-19 | 2014-04-02 | 北京京东方光电科技有限公司 | Mobile communication terminal |
| KR20140065626A (en) * | 2012-11-19 | 2014-05-30 | 한국에너지기술연구원 | Energy harvester for terminal and energy harvesting terminal |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101335463A (en) * | 2007-06-29 | 2008-12-31 | 宋柏君 | Sound energy electricity generating method and apparatus |
| CN101667795A (en) * | 2008-09-02 | 2010-03-10 | 宋华民 | Piezoelectric ceramics sound energy generation plate, piezoelectric ceramics sound energy generation set and piezoelectric ceramics sound energy generator |
| KR20140065626A (en) * | 2012-11-19 | 2014-05-30 | 한국에너지기술연구원 | Energy harvester for terminal and energy harvesting terminal |
| CN103236802A (en) * | 2013-05-02 | 2013-08-07 | 东华大学 | Sound energy power generation device |
| CN103701361A (en) * | 2013-12-19 | 2014-04-02 | 北京京东方光电科技有限公司 | Mobile communication terminal |
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