CN102300144B - Capacitance type electroacoustic converting system and capacitance type electroacoustic transducer thereof - Google Patents
Capacitance type electroacoustic converting system and capacitance type electroacoustic transducer thereof Download PDFInfo
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- CN102300144B CN102300144B CN201010212354.4A CN201010212354A CN102300144B CN 102300144 B CN102300144 B CN 102300144B CN 201010212354 A CN201010212354 A CN 201010212354A CN 102300144 B CN102300144 B CN 102300144B
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Abstract
Capacitance type electroacoustic transducer includes pair of input terminals, pair of output, battery lead plate and vibrating diaphragm.This is to input terminal received audio signal, and this is to lead-out terminal output audio signal, and this is conductivity magnet to input terminal and this to terminal at least one in lead-out terminal.Battery lead plate has first end and the second end and is electrically connected at this respectively to an input terminal of input terminal and this is to a lead-out terminal of lead-out terminal.Vibrating diaphragm is arranged on the side of this battery lead plate, and has the 3rd end and the 4th end and be electrically connected at this respectively to another input terminal of input terminal and this is to another lead-out terminal of lead-out terminal.
Description
Technical field
The invention relates to a kind of capacitance type electroacoustic converting system and capacitance type electroacoustic transducer thereof, espespecially a kind of utilize conductivity magnet to be used as the splicing ear linking multiple capacitance type electroacoustic transducer system and capacitance type electroacoustic transducer.
Background technology
Traditional moving-coil type loudspeaker is inductance type framework, and the formula of impedance according to inductance can be learnt, two identical coil-moving speakers are in parallel, and its impedance is 1/2 of single coil-moving speaker originally, makes the current capacity of audio driver increase to twice; If N number of identical coil-moving speaker is in parallel, then because impedance becomes lower, the current capacity of audio driver can be made most probably excessive and burn.
Therefore, in traditional moving-coil type loudspeaker, unless the impedance adjusting each coil-moving speaker in advance forms a suitable loudspeaker array (impedance about 4 ~ 8 ohm), if not do not advise several coil-moving speaker to be connected in parallel.
Summary of the invention
Therefore, an object of the present invention is to propose a kind of capacitance type electroacoustic converting system and capacitance type electroacoustic transducer thereof, the conductivity of conductivity magnet and heteropole phase absorption is utilized to be used as the audio frequency connected mode of multiple capacitance type electroacoustic transducer, to reach the object of multiple capacitance type electroacoustic transducer in parallel.
The present invention discloses a kind of capacitance type electroacoustic transducer.Capacitance type electroacoustic transducer includes pair of input terminals, pair of output, a battery lead plate and a vibrating diaphragm.This is used for reception one audio signal to input terminal, and this is used for exporting this audio signal to lead-out terminal, and wherein this is conductivity magnet to input terminal and this to terminal at least one in lead-out terminal.Battery lead plate has a first end and one second end, and this first end is electrically connected at this to first input end in input terminal, and this second end is electrically connected at this to 1 in lead-out terminal first lead-out terminal.Vibrating diaphragm is arranged on the side of this battery lead plate, and has one the 3rd end and one the 4th end, and the 3rd end is electrically connected at this to 1 in input terminal second input terminal, and the 4th end is electrically connected at this to 1 in lead-out terminal second lead-out terminal.
The present invention also discloses a kind of capacitance type electroacoustic converting system.Capacitance type electroacoustic converting system includes an audio driver, one first capacitance type electroacoustic transducer and one second capacitance type electroacoustic transducer, and each capacitance type electroacoustic transducer includes pair of input terminals, pair of output, a battery lead plate and one first vibrating diaphragm.This audio driver exports an audio signal.This is used for received audio signal to input terminal, and this is used for exporting this audio signal to lead-out terminal.Battery lead plate has a first end and one second end, and this first end is electrically connected at this to first input end in input terminal, and this second end is electrically connected at this to 1 in lead-out terminal first lead-out terminal.One first vibrating diaphragm is arranged on the side of this battery lead plate, and there is one the 3rd end and one the 4th end, 3rd end is electrically connected at this to 1 in input terminal second input terminal, and the 4th end is electrically connected at this to 1 in lead-out terminal second lead-out terminal.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the first embodiment of capacitance type electroacoustic converting system of the present invention.
Fig. 2 a is the schematic diagram of the second embodiment of capacitance type electroacoustic converting system of the present invention.
Fig. 2 b and Fig. 2 c is respectively the schematic diagram of the embodiment of the magnet configuration mode of capacitance type electroacoustic converting system in Fig. 2 a.
Fig. 3 is the schematic diagram of the 3rd embodiment of capacitance type electroacoustic converting system of the present invention.
The schematic diagram of the first example of the thin portion element that Fig. 4 is the capacitance type electroacoustic transducer in the capacitance type electroacoustic converting system shown in Fig. 2 a.
The schematic diagram of the second example of the thin portion element that Fig. 5 is the capacitance type electroacoustic transducer in the capacitance type electroacoustic converting system shown in Fig. 2 a.
[main element label declaration]
1,2,3 capacitance type electroacoustic converting systems
10 audio drivers
100,200,300 capacitive battery sound converting apparatus
101,201 ~ 20n, 301 ~ 30n, 311 ~ 31n, 321 ~ 32n capacitance type electroacoustic transducer
A1, b1, A1 ~ D1, A2 ~ D2, An ~ Dn, A1 ' ~ D1 ', A2 ' ~ D2 ', An ' ~ Dn ' A1 " ~ D1 ", A2 " ~ D2 ", An " ~ Dn " splicing ear
SA audio signal
SA1 first signal
SA2 secondary signal
Array1, Array2 capacitance type electroacoustic transducer array
411 ~ 41n, 511 ~ 51n battery lead plate
421 ~ 42n, 521 ~ 52n perforate
431 ~ 43n, 531 ~ 53n, 561 ~ 56n vibrating diaphragm
441 ~ 44n, 541 ~ 54n, 571 ~ 57n electrode layer
451 ~ 45n, 551 ~ 55n, 581 ~ 55n main film body
DS1 distance
Embodiment
First, be easier to for making specification of the present invention understand, the first simple characteristic describing capacitance type electroacoustic transducer.General capacitance type electroacoustic transducer (such as: an electrostatic loudspeaker, stays electric loud speaker, a piezo-electric loudspeaker or a machine in electric ear) is a capacitor architecture, formula of impedance according to electric capacity can be learnt, two identical capacitance type electroacoustic transducers are in parallel, and its impedance is the twice of single capacitance type electroacoustic transducer originally; If N number of identical capacitance type electroacoustic transducer is in parallel, then its impedance is N times of single capacitance type electroacoustic transducer originally, therefore the electric current that each capacitance type electroacoustic transducer is got is 1/N originally, can't increase the total current of audio driver and burn audio driver.Therefore, the present invention uses this characteristic of capacitance type electroacoustic transducer, disclose a kind of capacitance type electroacoustic transducer and audio frequency connected mode thereof, make capacitance type electroacoustic transducer come to be connected with audio driver by splicing ear (can by conductivity magnet to realize it), and carry out multiple capacitance type electroacoustic transducer in parallel by splicing ear.
Please refer to Fig. 1, Fig. 1 is the schematic diagram of the first embodiment of capacitance type electroacoustic converting system 1 of the present invention.In the present embodiment, capacitance type electroacoustic converting system 1 includes capacitive battery sound converting apparatus 100 and an audio driver 10.Capacitive battery sound converting apparatus 100 includes at least one capacitance type electroacoustic transducer 101, but this is not restrictive condition of the present invention.Capacitive battery sound converting apparatus 100 is coupled to an audio driver 10, and audio driver 10 can export an audio signal SA to drive capacitive battery sound converting apparatus 100.As shown in Figure 1, capacitance type electroacoustic transducer 101 includes multiple splicing ear A1, B1, C1, D1, and each splicing ear wherein in multiple splicing ear A1, B1, C1, D1 is all optionally as an input terminal or a lead-out terminal.In the present embodiment, be to represent the I/O characteristic of each splicing ear with the direction of arrow.For example, splicing ear A1, B1 are as pair of input terminals, and are electrically connected to this audio driver 10, are used for received audio signal SA, and splicing ear C1, D1 are as pair of output, are used for output audio signal SA; And in other embodiment, splicing ear A1, B1 also can be adopted to be used as pair of output, and adopt splicing ear C1, D1 to be used as pair of input terminals, this is also subordinate to the category that the present invention is contained.
It should be noted that, this of capacitance type electroacoustic transducer 101 is conductivity magnet to input terminal (including splicing ear A1, B1) and this at least one pair of terminal in lead-out terminal (including splicing ear C1, D1) respectively, preferably, in multiple splicing ear A1, B1, C1, D1, each splicing ear is all a conductivity magnet.
Please refer to Fig. 2 a, Fig. 2 a is the schematic diagram of the second embodiment of capacitance type electroacoustic converting system 2 of the present invention.In the present embodiment, capacitance type electroacoustic converting system 2 includes capacitive battery sound converting apparatus 200 and an audio driver 10.Capacitive battery sound converting apparatus 200 is coupled to audio driver 10, and audio driver 10 can export an audio signal SA to drive capacitive battery sound converting apparatus 200.Capacitive battery sound converting apparatus 200 includes multiple capacitance type electroacoustic transducer 201,202...20n, wherein each capacitance type electroacoustic transducer 201,202...20n respectively include multiple splicing ear, and multiple capacitance type electroacoustic transducer 201,202...20n come connected to each other by the plurality of splicing ear.Note that each splicing ear in the plurality of splicing ear is all optionally as an input terminal or a lead-out terminal.In the present embodiment, be to represent the I/O characteristic of each splicing ear with the direction of arrow.For example, capacitance type electroacoustic transducer 201 includes multiple splicing ear A1 ~ D1, wherein splicing ear A1, B1 is the pair of input terminals as capacitance type electroacoustic transducer 201, and be electrically connected to this audio driver 10, in order to received audio signal SA, and splicing ear C1, D1 are pair of output as capacitance type electroacoustic transducer 201; Capacitance type electroacoustic transducer 202 includes multiple splicing ear A2 ~ D2, and wherein splicing ear A2, B2 is the pair of input terminals as capacitance type electroacoustic transducer 202, and splicing ear C2, D2 are pair of output as capacitance type electroacoustic transducer 202; By that analogy.
It should be noted that at least one pair of terminal in each capacitance type electroacoustic transducer 201 ~ 20n is conductivity magnet respectively, preferably, in multiple splicing ear A1 ~ D1, A2 ~ D2... and An ~ Dn, each splicing ear is all a conductivity magnet.Therefore, the conductivity of conductivity magnet and heteropole phase absorption can be utilized to be used as the audio frequency connected mode of multiple capacitance type electroacoustic transducer 201 ~ 20n, to reach the object of multiple capacitance type electroacoustic transducer 201 ~ 20n in parallel.For example, input terminal A1 ~ B1, A2 ~ B2... and An ~ Bn in capacitance type electroacoustic transducer 201 ~ 20n are for having one first magnetic pole (such as, N pole) conductivity magnet, lead-out terminal C1 ~ D1, C2 ~ D2... and Cn ~ Dn in capacitance type electroacoustic transducer 201 ~ 20n are then for having one second magnetic pole (such as, S pole) conductivity magnet, make capacitance type electroacoustic transducer 201 ~ 20n by the attracting connection transmit audio frequency each other of conductivity magnet, as shown in Figure 2 b.Again for example, please refer to Fig. 2 c, terminal A1, D1, A2, D2... and An in capacitance type electroacoustic transducer 201 ~ 20n, Dn are for having the first magnetic pole (such as, N pole) conducting magnetic iron, terminal B1, C1, B2, C2... and Bn in capacitance type electroacoustic transducer 201 ~ 20n, Cn are then for having one second magnetic pole (such as, S pole) conductivity magnet, make capacitance type electroacoustic transducer 201 ~ 20n by the attracting connection transmit audio frequency each other of conductivity magnet.In other embodiment, input terminal A1 ~ B1, A2 ~ B2... and An ~ Bn in capacitance type electroacoustic transducer 201 ~ 20n are for having a magnetic pole (such as, N pole or S pole) conductivity magnet, lead-out terminal C1 ~ D1, C2 ~ D2... and Cn ~ Dn in capacitance type electroacoustic transducer 201 ~ 20n are then made up of the metal material with conductivity and magnetic; Or, input terminal A1 ~ B1, A2 ~ B2... and An ~ Bn in capacitance type electroacoustic transducer 201 ~ 20n are made up of the metal material with conductivity and magnetic, and lead-out terminal C1 ~ D1, C2 ~ D2... and the Cn ~ Dn in capacitance type electroacoustic transducer 201 ~ 20n is for having a magnetic pole (such as, N pole or S pole) conductivity magnet, all can reach and make capacitance type electroacoustic transducer 201 ~ 20n attracting connection transmit the object of audio frequency each other.Above-mentioned example is only for application of the present invention is described, not restrictive condition of the present invention, those skilled in the art should understand, without prejudice under spirit of the present invention, the mode of connection of the splicing ear of capacitance type electroacoustic transducer 201 ~ 20n and the various changes of pole configuration are all feasible, can design it according to actual demand.
Please refer to Fig. 3, Fig. 3 is the schematic diagram of the 3rd embodiment of capacitance type electroacoustic converting system 3 of the present invention.In the present embodiment, capacitance type electroacoustic converting system 3 includes capacitive battery sound converting apparatus 300 and an audio driver 10.Capacitive battery sound converting apparatus 300 is coupled to audio driver 10, and audio driver 10 can export an audio signal SA to drive capacitive battery sound converting apparatus 300.Capacitive battery sound converting apparatus 300 includes multiple capacitance type electroacoustic transducer 301 ~ 30n, 311 ~ 31n, 321 ~ 32n, wherein each capacitance type electroacoustic transducer 301 ~ 30n, 311 ~ 31n, 321 ~ 32n respectively include multiple splicing ear, and multiple capacitance type electroacoustic transducer 301 ~ 30n, 311 ~ 31n, 321 ~ 32n by the plurality of splicing ear come connected to each other.Note that each splicing ear in the plurality of splicing ear is all optionally as an input terminal or a lead-out terminal.In the present embodiment, be to represent the I/O characteristic of each splicing ear with the direction of arrow.For example, capacitance type electroacoustic transducer 301 includes multiple splicing ear A1 ~ H1, wherein splicing ear A1, B1 is the pair of input terminals as capacitance type electroacoustic transducer 301, and be electrically connected to this audio driver 10, in order to received audio signal SA, splicing ear C1 ~ D1, E1 ~ F1, G1 ~ H1 are then three pairs of lead-out terminals respectively as capacitance type electroacoustic transducer 301; Capacitance type electroacoustic transducer 311 includes multiple splicing ear A1 ' ~ H1 ', wherein splicing ear G1 ', H1 ' are the pair of input terminals as capacitance type electroacoustic transducer 311, and splicing ear A1 ' ~ B1 ', C1 ' ~ D1 ', E1 ' ~ F1 ' is then three pairs of lead-out terminals respectively as capacitance type electroacoustic transducer 311; By that analogy.
It should be noted that, each capacitance type electroacoustic transducer 301 ~ 30n, 311 ~ 31n, in 321 ~ 32n, at least one pair of terminal is conductivity magnet respectively, preferably, multiple splicing ear A1 ~ H1, A2 ~ H2..., An ~ Hn, A1 ' ~ H1 ', A2 ' ~ H2 ' ..., An ' ~ Hn ', A1 " ~ H1 ", A2 " ~ H2 " ..., An " ~ Hn " in each splicing ear be all a conductivity magnet, or can be partly conductivity magnet, partly for the metal material with conductivity and magnetic is made, use and utilize the conductivity of conductivity magnet and Magnetic Phase absorption to be used as multiple capacitance type electroacoustic transducer 301 ~ 30n, 311 ~ 31n, the audio frequency connected mode of 321 ~ 32n, to reach multiple capacitance type electroacoustic transducer 301 ~ 30n in parallel, 311 ~ 31n, the object of 321 ~ 32n.In addition, it should be noted that, relevant multiple splicing ear A1 ~ H1, A2 ~ H2..., An ~ Hn, A1 ' ~ H1 ', A2 ' ~ H2 ' ..., An ' ~ Hn ', A1 " ~ H1 ", A2 " ~ H2 " ..., An " ~ Hn " in the various changes (can with reference to shown in figure 2b and Fig. 2 c) of mode of connection between each splicing ear and pole configuration be all feasible, can be designed it according to actual demand.
Please note, above-mentioned capacitance type electroacoustic transducer 101,201 ~ 20n, 301 ~ 30n, 311 ~ 31n, 321 ~ 32n can be respectively an electrostatic loudspeaker, and stay electric loud speaker (electrets peaker), a piezo-electric loudspeaker or a machine in electric ear, but the present invention is not limited thereto, also can be the capacitance type electroacoustic transducer of other kind.Moreover, due to above-mentioned capacitance type electroacoustic transducer 201 ~ 20n, 301 ~ 30n, mainly attracting by the magnetic of conductivity magnet and be interconnected between 311 ~ 31n, 321 ~ 32n, therefore the visual demand of user and easily and connect multiple capacitance type electroacoustic transducer, to form capacitive battery sound converting apparatus 200,300, also can easily pass through force and be pulled open separation.In addition, above-mentioned audio driver 10 can realize it by a high-voltage amplifier, but this is not restrictive condition of the present invention.
Can be learnt by Fig. 2 a, carry out multiple capacitance type electroacoustic transducer 201 ~ 20n connected to each other by multiple splicing ear, multiple capacitance type electroacoustic transducer 201 ~ 20n can be made to be connected in parallel to each other, to form a capacitance type electroacoustic transducer array Array1.Can be learnt by Fig. 3, multiple capacitance type electroacoustic transducer 301 ~ 30n connected to each other, 311 ~ 31n, 321 ~ 32n is come by multiple splicing ear, multiple capacitance type electroacoustic transducer 301 ~ 30n can be made, 311 ~ 31n, 321 ~ 32n be connected in parallel to each other, to form a capacitance type electroacoustic transducer array Array2.Please note again, above-mentioned each embodiment be only the present invention for feasible embodiment, and unrestricted restrictive condition of the present invention, those skilled in the art should understand, number, the connected mode of capacitance type electroacoustic transducer are not limited to, and without prejudice under spirit of the present invention, the various changes about capacitive battery sound converting apparatus 100,200,300 are all feasible.
Please also refer to the schematic diagram of the first example of Fig. 4 and Fig. 2 a, Fig. 4 thin portion element that is the capacitance type electroacoustic transducer 201 ~ 20n in the capacitive battery sound converting apparatus 200 shown in Fig. 2 a.As shown in Figure 4, capacitive battery sound converting apparatus 200 includes multiple capacitance type electroacoustic transducer 201,202...20n, in the present embodiment, each capacitance type electroacoustic transducer 201,202...20n respectively include multiple splicing ear, a battery lead plate (electrode plate) and a vibrating diaphragm (diaphragm).For example, capacitance type electroacoustic transducer 201 includes multiple splicing ear A1 ~ D1, battery lead plate 411 and vibrating diaphragm 431, wherein battery lead plate 411 can be made up of electric conducting material or be made by a conductive layer coating on a non-conductive substrate, and include multiple perforate 421, vibrating diaphragm 431 then includes electrode layer 441 and main film body 451, by that analogy.Vibrating diaphragm 431 is arranged on one of battery lead plate 411 on the surface, and with battery lead plate 411 at a distance of a distance DS1.In the embodiment of the present invention, multiple spacer (Spacer) (not shown) can be set between vibrating diaphragm 431 and battery lead plate 411 and standoff distance DS1.It should be noted that, battery lead plate 411 has a first end and one second end, this first end be electrically connected at splicing ear B1 (that is, this is to first input end in input terminal), and this second end is electrically connected at splicing ear D1 (that is this is to 1 in lead-out terminal first lead-out terminal); In addition, the electrode layer 441 of vibrating diaphragm 431 has one the 3rd end and one the 4th end, 3rd end be electrically connected at splicing ear A1 (that is, this is to 1 in input terminal second input terminal), and the 4th end be electrically connected at splicing ear C1 (that is this is to 1 in lead-out terminal second lead-out terminal).
Please note, with electric charge (not shown) or need additionally to add direct current (DC) bias (such as :+500 volts or-500 volts) in main film body 441, main film body 451 can be made up of fluorine material (such as: polytetrafluoroethylene (PTFE) or fluorinated ethylene propylene (FEP) (FEP)), but the present invention is not limited thereto.And electrode layer 441 can be made up of aluminium, chromium or other electric conducting material.
Because each capacitance type electroacoustic transducer 201 ~ 20n can be considered an electric capacity, therefore carry out multiple capacitance type electroacoustic transducer 201 ~ 20n connected to each other by multiple splicing ear, n electric capacity in multiple capacitance type electroacoustic transducer 201 ~ 20n can be made to be connected in parallel to each other.
In the present embodiment, the audio signal SA that audio driver 10 exports is pair of differential signal, include the first signal SA1 and secondary signal SA2, but the present invention is not limited thereto, and audio signal SA can be a single-ended signal or pair of differential signal.When audio signal SA is pair of differential signal, battery lead plate 411 ~ 41n in each capacitance type electroacoustic transducer 201 ~ 20n receives this first signal SA1 to differential wave, and vibrating diaphragm 431 ~ 43n then receives this secondary signal SA2 to differential wave (as shown in Figure 4); In other embodiment, when audio signal SA is a single-ended signal, vibrating diaphragm 431 ~ 43n in each capacitance type electroacoustic transducer capacitance type electroacoustic transducer 201 ~ 20n receives this single-ended signal, and battery lead plate 411 ~ 41n is then coupled to ground (not shown).In this embodiment, audio driver 10 also can have two splicing ear a1 and b1, and splicing ear a1 and b1 can be and has magnetic pole (such as, N pole or S pole) conductivity magnet, or can be made up of the metal material with conductivity and magnetic, make audio driver 10 also by splicing ear a1, b1 and capacitance type electroacoustic transducer 201 the magnetic attraction between splicing ear A1, B1 and be mutually electrically connected, and the first signal SA1 and secondary signal SA2 is transferred to capacitance type electroacoustic transducer 201 ~ 20n.
Please also refer to the schematic diagram of the second example of Fig. 5 and Fig. 2 a, Fig. 5 thin portion element that is the capacitance type electroacoustic transducer 201 ~ 20n in the capacitive battery sound converting apparatus 200 shown in Fig. 2 a.As shown in Figure 5, capacitive battery sound converting apparatus 200 includes multiple capacitance type electroacoustic transducer 201,202...20n, in the present embodiment, each capacitance type electroacoustic transducer 201,202...20n respectively include multiple splicing ear, a battery lead plate, one first vibrating diaphragm and one second vibrating diaphragm, wherein this first vibrating diaphragm is arranged on the side of this battery lead plate, and this second vibrating diaphragm is arranged on the opposite side of this battery lead plate.For example, capacitance type electroacoustic transducer 201 includes multiple splicing ear A1 ~ D1, battery lead plate 511, first vibrating diaphragm 531 and the second vibrating diaphragm 561, wherein battery lead plate 511 can be made up of electric conducting material or be made by a conductive layer coating on a non-conductive substrate, and include multiple perforate 521, first vibrating diaphragm 531 then includes electrode layer 541 and main film body 551, second vibrating diaphragm 561 then includes electrode layer 571 and main film body 581, by that analogy.First vibrating diaphragm 531 and the second vibrating diaphragm 561 are separately positioned in the both side surface of battery lead plate 511, and with battery lead plate 511 at a distance of a distance DS1.In the embodiment of the present invention, multiple spacer (not shown) can be set between the first vibrating diaphragm 531 and battery lead plate 511 and standoff distance DS1, and multiple spacer (not shown) also can be set between the second vibrating diaphragm 561 and battery lead plate 511 and standoff distance DS1.It should be noted that, battery lead plate 511 has a first end and one second end, this first end be electrically connected at splicing ear B1 (that is, this is to first input end in input terminal), and this second end is electrically connected at splicing ear D1 (that is this is to 1 in lead-out terminal first lead-out terminal); In addition, the electrode layer 541 of the first vibrating diaphragm 531 has one the 3rd end and one the 4th end, the electrode layer 571 of the second vibrating diaphragm 561 then has a five terminal and one the 6th end, and the 3rd end and this five terminal be electrically connected in the lump splicing ear A1 (that is, this is to 1 in input terminal second input terminal), and the 4th end and the 6th end be electrically connected at splicing ear C1 (that is this is to 1 in lead-out terminal second lead-out terminal) in the lump.
Because each capacitance type electroacoustic transducer 201 ~ 20n can be considered two electric capacity, therefore carry out multiple capacitance type electroacoustic transducer 201 ~ 20n connected to each other by multiple splicing ear, (2n) the individual electric capacity in capacitance type electroacoustic transducer 201 ~ 20n can be made to be connected in parallel to each other.
Similarly, in the present embodiment, when audio signal SA is pair of differential signal, capacitance type electroacoustic transducer (such as, 201) battery lead plate (such as, 511) receives this first signal SA1 to differential wave, and the first vibrating diaphragm (such as, 531) and the second vibrating diaphragm (such as, 561) receive this secondary signal SA2 to differential wave (as shown in Figure 5); In other embodiment, when audio signal SA is a single-ended signal, capacitance type electroacoustic transducer (such as, 201) the first vibrating diaphragm (such as, 531) and the second vibrating diaphragm (such as, 561) receive this single-ended signal, and battery lead plate (such as, 511) is coupled to ground (not shown).In this embodiment, audio driver 10 also can have two splicing ear a1 and b1, and splicing ear a1 and b1 can be and has magnetic pole (such as, N pole or S pole) conductivity magnet, or can be made up of the metal material with conductivity and magnetic, make audio driver 10 also by splicing ear a1, b1 and capacitance type electroacoustic transducer 201 the magnetic attraction between splicing ear A1, B1 and be mutually electrically connected, and the first signal SA1 and secondary signal SA2 is transferred to capacitance type electroacoustic transducer 201 ~ 20n.
Above-described embodiment is only used for technical characteristic of the present invention is described, is not used for limiting to category of the present invention.As from the foregoing, the invention provides a kind of capacitive battery sound converting apparatus and audio frequency connected mode thereof.By utilizing conductivity and the heteropole phase absorption of conductivity magnet, can be used as the audio frequency connected mode of capacitance type electroacoustic transducer.In addition, multiple capacitance type electroacoustic transducer is allowed to be connected in parallel to each other by those splicing ears, to form a capacitance type electroacoustic transducer array.Thus, not only can increase the output volume of capacitive battery sound converting apparatus, also the capacitance type electroacoustic transducer that different frequency responds can be connected and make audio transmission, and use the audio frequency enlarger of same gamut (audio amplifier) to promote this capacitance type electroacoustic transducer array, to produce the voice output of gamut.Note that each splicing ear in capacitive battery sound converting apparatus is all optionally as an input terminal or a lead-out terminal, uses more simple and easy.In addition, each capacitance type electroacoustic transducer in the capacitive battery sound converting apparatus disclosed by the present invention can adopt single vibrating diaphragm or Dual-layer oscillation membrane to realize it, and this is all subordinate to the category that the present invention is contained.
The foregoing is only preferred embodiment of the present invention, all equalizations done according to the claims in the present invention scope change and modify, and all should belong to covering scope of the present invention.
Claims (12)
1. a capacitance type electroacoustic transducer, includes:
Pair of input terminals and pair of output, this is used for reception one audio signal to input terminal, and wherein this is conductivity magnet to input terminal and this to each terminal in lead-out terminal;
One battery lead plate, there is a first end and one second end, this first end is electrically connected at this to first input end in input terminal, and this second end is electrically connected at this to 1 in lead-out terminal first lead-out terminal, and this is used for exporting this audio signal to lead-out terminal, and be electrically connected to another capacitance type electroacoustic transducer by the magnetic attraction of this conductivity magnet; And
One vibrating diaphragm, be arranged on the side of this battery lead plate, and including a main film body and an electrode layer, this electrode layer has one the 3rd end and is electrically connected at this to 1 in input terminal second input terminal, and one the 4th end is electrically connected at this to 1 in lead-out terminal second lead-out terminal.
2. capacitance type electroacoustic transducer according to claim 1, wherein this first input end and this second input terminal have one first magnetic pole, and this first lead-out terminal and this second lead-out terminal have one second magnetic pole.
3. capacitance type electroacoustic transducer according to claim 1, also include one second vibrating diaphragm, be arranged on the opposite side of this battery lead plate, and there is a five terminal and one the 6th end, this five terminal is electrically connected at this to this in input terminal second input terminal, and the 6th end is electrically connected at this to this in lead-out terminal second lead-out terminal.
4. capacitance type electroacoustic transducer according to claim 1, wherein this audio signal is a single-ended signal, and this vibrating diaphragm receives this single-ended signal, and this battery lead plate is coupled to ground.
5. capacitance type electroacoustic transducer according to claim 1, wherein this audio signal is pair of differential signal, and this battery lead plate receives this one first signal to differential wave, and this vibrating diaphragm receives this secondary signal to differential wave.
6. capacitance type electroacoustic transducer according to claim 1, it is that an electrostatic loudspeaker, stays electric loud speaker, a piezo-electric loudspeaker or a machine in electric ear.
7. a capacitance type electroacoustic converting system, includes:
One audio driver, in order to export an audio signal; And
One first capacitance type electroacoustic transducer and one second capacitance type electroacoustic transducer, it respectively includes:
Pair of input terminals and pair of output, this is used for receiving this audio signal to input terminal, and this is used for exporting this audio signal to lead-out terminal, and wherein this is conductivity magnet to input terminal and this to terminal at least one in lead-out terminal;
One battery lead plate, has a first end and one second end, and this first end is electrically connected at this to first input end in input terminal, and this second end is electrically connected at this to 1 in lead-out terminal first lead-out terminal; And
One first vibrating diaphragm, be arranged on the side of this battery lead plate, and include a main film body and an electrode layer, this electrode layer has one the 3rd end and is electrically connected at this to 1 in input terminal second input terminal, and one the 4th end is electrically connected at this to 1 in lead-out terminal second lead-out terminal;
This of wherein this first capacitance type electroacoustic transducer is electrically coupled to this audio driver to input terminal, in order to receive this audio signal, and this of this first capacitance type electroacoustic transducer is mutually be electrically connected by the magnetic attraction of this conductivity magnet this of lead-out terminal and this second capacitance type electroacoustic transducer to input terminal.
8. capacitance type electroacoustic converting system according to claim 7, each capacitance type electroacoustic transducer wherein in this first capacitance type electroacoustic transducer and this second capacitance type electroacoustic transducer also includes:
One second vibrating diaphragm, be arranged on the opposite side of this battery lead plate, and include a main film body and an electrode layer, this electrode layer has a five terminal and to be electrically connected in this first capacitance type electroacoustic transducer or this second capacitance type electroacoustic transducer this to this in input terminal second input terminal, and one the 6th end to be electrically connected in this first capacitance type electroacoustic transducer or this second capacitance type electroacoustic transducer this to this in lead-out terminal second lead-out terminal.
9. capacitance type electroacoustic converting system according to claim 7, wherein this is a conductivity magnet to input terminal and this to each terminal in lead-out terminal, this first input end and this second input terminal have one first magnetic pole, and this first lead-out terminal and this second lead-out terminal have one second magnetic pole.
10. capacitance type electroacoustic converting system according to claim 7, wherein this audio signal is a single-ended signal, and this first vibrating diaphragm receives this single-ended signal, and this battery lead plate is coupled to ground.
11. capacitance type electroacoustic converting systems according to claim 7, wherein this audio signal is pair of differential signal, and this battery lead plate receives this one first signal to differential wave, and this first vibrating diaphragm receives this secondary signal to differential wave.
12. capacitance type electroacoustic converting systems according to claim 7, wherein this first capacitance type electroacoustic transducer and this second capacitance type electroacoustic transducer are respectively that an electrostatic loudspeaker, stays electric loud speaker, a piezo-electric loudspeaker or a machine in electric ear.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010212354.4A CN102300144B (en) | 2010-06-22 | 2010-06-22 | Capacitance type electroacoustic converting system and capacitance type electroacoustic transducer thereof |
Applications Claiming Priority (1)
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| CN201010212354.4A CN102300144B (en) | 2010-06-22 | 2010-06-22 | Capacitance type electroacoustic converting system and capacitance type electroacoustic transducer thereof |
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| CN102300144B true CN102300144B (en) | 2015-07-29 |
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Citations (4)
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|---|---|---|---|---|
| GB2037537A (en) * | 1978-11-28 | 1980-07-09 | Sony Corp | Electrostatic Loudspeakers |
| CN1956599A (en) * | 2005-09-28 | 2007-05-02 | 日本电产鸽株式会社 | Speaker |
| KR20070113657A (en) * | 2006-05-25 | 2007-11-29 | 주식회사 한국이어폰텍 | Acousticwaveguide tube-type earphone for portable information device |
| CN201226594Y (en) * | 2008-07-04 | 2009-04-22 | 瑞声声学科技(深圳)有限公司 | Silicon-based capacitance microphone |
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- 2010-06-22 CN CN201010212354.4A patent/CN102300144B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2037537A (en) * | 1978-11-28 | 1980-07-09 | Sony Corp | Electrostatic Loudspeakers |
| CN1956599A (en) * | 2005-09-28 | 2007-05-02 | 日本电产鸽株式会社 | Speaker |
| KR20070113657A (en) * | 2006-05-25 | 2007-11-29 | 주식회사 한국이어폰텍 | Acousticwaveguide tube-type earphone for portable information device |
| CN201226594Y (en) * | 2008-07-04 | 2009-04-22 | 瑞声声学科技(深圳)有限公司 | Silicon-based capacitance microphone |
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| CN102300144A (en) | 2011-12-28 |
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