CN203289638U - Non-magnetic steel system receiver and loudspeaker thereof - Google Patents

Abstract

The utility model discloses a non-magnetic steel system receiver and a loudspeaker thereof. Both the receiver and the loudspeaker comprise two energized coils, and one coil is provided with a diaphragm which is connected with the coil. By using a mutual action force between the two energized coils, the diaphragm which is connected with the coil or is integrated with the coil to form an integrative assembly is vibrated to emit sound. The receiver and the loudspeaker of the utility model are suitable for a variety of occasions, the dynamic vibration amplitude of the diaphragm can be consistent, the receiver and the loudspeaker are simple, tiny and ultra thin and have few components, and in the concrete production, the organization of production by using an automated production line can be satisfied.

Description

A kind of non-magnet steel system receiver and loud speaker

Technical field

The utility model relates to a kind of non-magnet steel system receiver and loud speaker.

Background technology

In recent years,, due to skyrocketing of rare-earth permanent magnet price, for the research and development of non-permanent magnet systems receiver and loud speaker, caused again people's interest.Non-permanent magnet systems receiver and loud speaker have polytype, commonly used a kind of be electrostatic receiver and loud speaker, its architectural feature is to only have vibrating diaphragm and metal sheet (backplane), when applying Dc bias at vibrating diaphragm and thin metal on as two electrodes and applying with the voltage signal of certain alternation more simultaneously, can make vibrating diaphragm vibration and sounding under the effect of electrostatic force, the occurring principle of Here it is electrostatic loudspeaker.Another kind is electret type receiver and loud speaker, in the sixties in last century, after GSessler professor and professor JWest have made in the world first electret capacitor microphone (ECM) with thin polymer film, replaced with the electric field that foil electret provides the electric field that Dc bias provides, this just makes the large burden that condenser microphone has been lost must will grid bias power supply, makes electret capacitor microphone obtain application very widely.So, people also can expect the problem of the manufacturing of electret receiver and loud speaker with regard to nature.Really, similar with above-mentioned electrostatic loud speaker, people have developed electret receiver and loud speaker.But this two classes receiver and loudspeaker device are all the electric field type devices, and it relates to the charged stability problem of electret, and are subject to can bringing the problem of inevitable static discharge, electrostatic interference etc. because its electric field is high, and product is subjected to restraining factors many.

Requirement along with development in science and technology, people wish that electroacoustic unit, device should adapt to multiple occasion, and also more and more higher to the requirement of its technology, wish that product is subjected to restraining factors few, good product performance, especially on the dynamic distribution of amplitudes of vibrating membrane more requirement can reach unanimity.Should itself be simple, miniature, ultra-thin, member be the least possible, and it in concrete the manufacturing, can meet and can utilize the production of automatic production line tissue again.Non-magnet steel system receiver of the present utility model and loud speaker, can meet this requirement.

The utility model content

The utility model purpose: the utility model provides a kind of non-magnet steel system receiver and loud speaker, and light and handy, with low cost, raw material simple in structure are easy to get.

Technical scheme: a kind of non-magnet steel system receiver, comprise two hot-wire coils, wherein a coil is provided with coupled vibrating diaphragm.

Above-mentioned non-magnet steel system receiver, utilize two hot-wire coil Interaction Forces, and make the vibrating diaphragm that is connected with a coil wherein or with an integrated vibrating diaphragm vibration of coil wherein and sound.

Technique scheme is utilized the effect of power mutual between two hot-wire coils and is made vibrating diaphragm vibration and sound, and reaches the purpose of electricity-sound conversion.

In order to improve the quality of products, two hot-wire coils are relative, parallel placement.

Be connected with vibrating diaphragm in actual design or with the integrated coil of vibrating diaphragm be coil O ₁Be fixed on pcb board and be fixed on support, with coil O ₁Relatively, the coil of parallel placement is O ₂, at coil O ₂Centre is improved the structure of the core body of soft iron core of magnetic flux density and so on.

As can be known, technique scheme is a problem that the interaction force of two coaxial, current-carrying flatwise coil systems is arranged in the theoretical research discussion.

As shown in Figure 3, now establish coil O ₁The number of turn be N ₁, current flowing is I ₁, radius is R ₁Coil O ₂The number of turn be N ₂, current flowing is I ₂, radius is R ₂, two centre-to-centre spacing are a.Now getting common axis is the x axle, and initial point is located at coil O ₂Circle centre position, by on the circular electric current axis any formula of magnetic field as can be known:

$B_x=\frac{{\mathrm{\μ}}_0}{2}\frac{N_2{R}_2^2{I}_2}{{(R_2^2+x^2)}^{\frac{3}{2}}}$

Because R ₁, R ₂All, greater than a, can think approx at small coil O ₁In plane, magnetic field B is axial at x, component B _xConstant on numerical value.But due to large coil O ₂The magnetic field that produces for the axial symmetry of x axle as can be known, at small coil O ₁Each current element place, magnetic field B has the axial component B perpendicular to x _⊥, direction is outside from the axis of x axle, therefore, and small coil O ₁Upper each current element all is subject to the magnetic force parallel with the x axle, and its summation is:

$F={\mathrm{<figure-callout\; id="1"\; label="N"\; filenames="HDA00002940302400011.png"\; state="\{\{state\}\}">N</figure-callout>}}_1\underset{0}{\overset{2\mathrm{\&pi;}{R}_1}{\&Integral;}}{B}_{\&perp;}{I}_1\mathrm{dl}=2\mathrm{\&pi;}{R}_1{\mathrm{<figure-callout\; id="1"\; label="N"\; filenames="HDA00002940302400011.png"\; state="\{\{state\}\}">N</figure-callout>}}_1\&CenterDot;B_{\&perp;}{I}_1$

Utilize the Gauss theorem in magnetic field to try to achieve:

$B_{\&perp;}=-\frac{1}{2}{R}_1\frac{d{B}_x}{\mathrm{dx}}=\frac{3}{4}\frac{{\mathrm{\&mu;}}_0{N}_2{R}_1{\mathrm{<figure-callout\; id="2"\; label="R"\; filenames="HDA00002940302400011.png,HDA00002940302400022.png"\; state="\{\{state\}\}">R</figure-callout>}}_2^2{\mathrm{xI}}_2}{{({\mathrm{<figure-callout\; id="2"\; label="R"\; filenames="HDA00002940302400011.png,HDA00002940302400022.png"\; state="\{\{state\}\}">R</figure-callout>}}_2^2+x^2)}^{\frac{5}{2}}}{/}_{x=a}=\frac{3}{4}\frac{{\mathrm{\&mu;}}_0{N}_2{R}_1{\mathrm{<figure-callout\; id="2"\; label="R"\; filenames="HDA00002940302400011.png,HDA00002940302400022.png"\; state="\{\{state\}\}">R</figure-callout>}}_2^2{\mathrm{aI}}_2}{{({\mathrm{<figure-callout\; id="2"\; label="R"\; filenames="HDA00002940302400011.png,HDA00002940302400022.png"\; state="\{\{state\}\}">R</figure-callout>}}_2^2+a^2)}^{\frac{5}{2}}}$

Be total making a concerted effort:

$F=\frac{{3\mathrm{\&mu;}}_0}{2\mathrm{\&pi;}}\frac{\left({\mathrm{<figure-callout\; id="1"\; label="N"\; filenames="HDA00002940302400011.png"\; state="\{\{state\}\}">N</figure-callout>}}_1{\mathrm{\&pi;<figure-callout\; id="1"\; label="R"\; filenames="HDA00002940302400011.png"\; state="\{\{state\}\}">R</figure-callout>}}_1^2{I}_1\right)\left({\mathrm{<figure-callout\; id="2"\; label="N"\; filenames="HDA00002940302400011.png,HDA00002940302400022.png"\; state="\{\{state\}\}">N</figure-callout>}}_2{\mathrm{\&pi;<figure-callout\; id="2"\; label="R"\; filenames="HDA00002940302400011.png,HDA00002940302400022.png"\; state="\{\{state\}\}">R</figure-callout>}}_2^2{I}_2\right)}{{({\mathrm{<figure-callout\; id="2"\; label="R"\; filenames="HDA00002940302400011.png,HDA00002940302400022.png"\; state="\{\{state\}\}">R</figure-callout>}}_2^2+a^2)}^{\frac{5}{2}}}$

If I ₁, I ₂, be alternation, F also changes thereupon.

For easy to prepare, guarantee simultaneously product quality, two hot-wire coils are close around planar coil O ₁With close around planar coil O ₂

As previously mentioned, the structure of general non-permanent magnet systems receiver, in two parallel plane electrodes, placement is by the polymer vibration film (or foil electret) of the zona tensioning of stretching tight, due on two parallel, fixing plane electrodes, comprehensive, the driving uniformly of additional electrostatic force, and can sound on request.The utility model is to utilize two relative place close around planar coil O ₁, O ₂While passing to equidirectional electric current, both show as the effect of the power of inhaling mutually; If two is close around planar coil O ₁, O ₂While passing to reciprocal electric current, both show as the effect of the power of repelling each other; If pass to the electric current of alternation, its corresponding active force also changes with the variation of the electric current of alternation.

Close around planar coil O ₁With close around planar coil O ₂Step mode be one of following three kinds of modes:

1. close around planar coil O ₁The electric current that is led to is voice-frequency signalling current, and is close around planar coil O ₂The electric current that is led to is the constant-direct current electric current;

2. close around planar coil O ₁The electric current that is led to is voice-frequency signalling current, and is close around planar coil O ₂The electric current that is led to is treated voice-frequency signalling current;

3. close around planar coil O ₁The electric current that is led to is voice-frequency signalling current, and is close around planar coil O ₂For " Helmholtz " coil that is comprised of two coils, the electric current that (accompanying drawing 1) led to is treated voice-frequency signalling current;

Above-mentioned treated voice-frequency signalling current refers to: when audio signal was " just ", audio signal did not change, and directly passes into close around planar coil O ₁, and directly pass into close around planar coil O ₂In; When audio signal was " bearing ", audio signal directly passed into close around planar coil O ₁, pass into close around planar coil O ₂Audio signal be audio signal after processor is processed anti-phase variation, it is " just ".

The utility model step mode can adopt any in above-mentioned three kinds.

The processor that above-mentioned Audio Signal Processing is used, purpose are in order to reach close around planar coil O with passing into ₁Signal positive and negative two halves circumferential portion A, the B of signal (consider) as shown in accompanying drawing 2a, close around planar coil O if treated signal (A ,-B(C)) passes into ₂In as accompanying drawing 2b, the signal of processor is undertaken by following principle: when " just ", signal does not change, and passes into close around planar coil O when signal ₂In, when signal is " bearing ", after the treated and anti-phase variation of signal, then pass into close around planar coil O ₂In.All parts of signal are all by inputting after this rule process.Processor can not distortion, especially to audio frequency small-signal part; Processor can not have phase distortion, especially passes into close around planar coil O ₁Signal and through processing pass into close around planar coil O ₂Signal between phase distortion can not be arranged.

" Helmholtz " coil that above-mentioned two coils form is that a kind of the assurance has the device of uniform magnetic field in certain interval, and magnetic field is enhanced.If " Helmholtz " coil has a pair of coaxial coil, the electric current that its direction of winding is identical, the number of turns is identical, pass through is all I, coil radius is: R, two coils are apart: a, as shown in Figure 1: if when this is not equal to coil radius R value to apart a value between coaxial coil, Distribution of Magnetic Field on axis is just inhomogeneous, and when a=R, the Distribution of Magnetic Field on axis just evenly.

Daily required in order to meet, during to high-power receiver, above-mentioned treated voice-frequency signalling current first amplifies by power amplifier before processing.

If high-power receiver, the audio signal a-road-through enters close around planar coil O ₁, after another road audio signal is first amplified by power amplifier, then the processing of treated device passes into close around planar coil O again ₂, also it can be designed on the pcb board of terminal connections terminal because the processing of power amplifier, processor is more more complex, perhaps design is placed on the fixed coil side.Because common coil-moving speaker vibrating diaphragm is connected on the wire of coil (voice coil loudspeaker voice coil), mechanical oscillation part quality is larger, and the electroacoustic conversion synchronization is poor, and distortion will increase, particularly high frequency response is poor, and the technical solution of the utility model has just been avoided such problem.

If the plane receiver that power is little, the audio signal a-road-through enters close around planar coil O ₁, pass into again close around planar coil O after the processing of the first treated device in another road ₂, because processor is less, also simply it can be designed on the pcb board of terminal connections terminal.

Described non-magnet steel system receiver, comprise close around planar coil O ₁, with close around planar coil O ₁Be connected or integrated vibrating diaphragm, close around planar coil O ₂, terminals P CB wiring board and line and basin body support, the bottom of basin body support is provided with support baseboard, and is close around planar coil O ₂Laterally be installed on support baseboard, close around planar coil O ₁Parallel be located at close around planar coil O ₂Top, basin body support in, and close around planar coil O ₁With close around planar coil O ₂Between distance non-vanishing, terminals P CB wiring board and line thereof are located on the basin body support.

For easy to use, described terminals P CB wiring board is provided with first signal input, secondary signal input and the signal processor between first signal input and secondary signal input, audio signal is from first signal input, the input of secondary signal input, and a road directly passes into close around planar coil O ₁, another road passes into close around planar coil O after signal processor processes ₂

In order to strengthen two interaction forces between coil, close around planar coil O ₂Ring in be provided with soft iron core.

In order to reduce the resistance of vibrating diaphragm vibration, prevent simultaneously the pollution of the foreign matters such as dust, on the basin body support, the below of vibrating diaphragm is provided with the phono-equalizer unit hole, the phono-equalizer unit hole is provided with dustcloth.

, for easy to use, prevent from simultaneously polluting, on the basin body support, the top of vibrating diaphragm is provided with the guard shield of perforate.

A kind of non-magnet steel system speaker, comprise two hot-wire coils, and wherein a coil is provided with coupled vibrating diaphragm.

Above-mentioned non-magnet steel system speaker, utilize two hot-wire coil Interaction Forces, and make the vibrating diaphragm that is connected with a coil wherein or with an integrated vibrating diaphragm vibration of coil wherein and sound.

Technique scheme is utilized the effect of power mutual between two hot-wire coils and is made vibrating diaphragm vibration and sound, and reaches the purpose of electricity-sound conversion.

In order to improve the quality of products, two hot-wire coils are relative, parallel placement.

Be connected with vibrating diaphragm in actual design or with the integrated coil of vibrating diaphragm be coil O ₁Be fixed on pcb board and be fixed on support, with coil O ₁Relatively, the coil of parallel placement is O ₂, at coil O ₂Centre is improved the structure of the core body of soft iron core of magnetic flux density and so on.

As can be known, technique scheme is a problem that the interaction force of two coaxial, current-carrying flatwise coil systems is arranged in the theoretical research discussion.

As shown in Figure 3, now establish coil O ₁The number of turn be N ₁, current flowing is I ₁, radius is R ₁Coil O ₂The number of turn be N ₂, current flowing is I ₂, radius is R ₂, two centre-to-centre spacing are a.Now getting common axis is the x axle, and initial point is located at coil O ₂Circle centre position, by on the circular electric current axis any formula of magnetic field as can be known:

$B_x=\frac{{\mathrm{\&mu;}}_0}{2}\frac{N_2{R}_2^2{I}_2}{{(R_2^2+x^2)}^{\frac{3}{2}}}$

Because R ₁, R ₂All, greater than a, can think approx at small coil O ₁In plane, magnetic field B is axial at x, component B _xConstant on numerical value.But due to large coil O ₂The magnetic field that produces for the axial symmetry of x axle as can be known, at small coil O ₁Each current element place, magnetic field B has the axial component B perpendicular to x _⊥, direction is outside from the axis of x axle, therefore, and small coil O ₁Upper each current element all is subject to the magnetic force parallel with the x axle, and its summation is:

$F={\mathrm{<figure-callout\; id="1"\; label="N"\; filenames="HDA00002940302400011.png"\; state="\{\{state\}\}">N</figure-callout>}}_1\underset{0}{\overset{2\mathrm{\&pi;}{R}_1}{\&Integral;}}{B}_{\&perp;}{I}_1\mathrm{dl}=2\mathrm{\&pi;}{R}_1{\mathrm{<figure-callout\; id="1"\; label="N"\; filenames="HDA00002940302400011.png"\; state="\{\{state\}\}">N</figure-callout>}}_1\&CenterDot;B_{\&perp;}{I}_1$

Utilize the Gauss theorem in magnetic field to try to achieve:

$B_{\&perp;}=-\frac{1}{2}{R}_1\frac{d{B}_x}{\mathrm{dx}}=\frac{3}{4}\frac{{\mathrm{\&mu;}}_0{N}_2{R}_1{\mathrm{<figure-callout\; id="2"\; label="R"\; filenames="HDA00002940302400011.png,HDA00002940302400022.png"\; state="\{\{state\}\}">R</figure-callout>}}_2^2{\mathrm{xI}}_2}{{({\mathrm{<figure-callout\; id="2"\; label="R"\; filenames="HDA00002940302400011.png,HDA00002940302400022.png"\; state="\{\{state\}\}">R</figure-callout>}}_2^2+x^2)}^{\frac{5}{2}}}{/}_{x=a}=\frac{3}{4}\frac{{\mathrm{\&mu;}}_0{N}_2{R}_1{\mathrm{<figure-callout\; id="2"\; label="R"\; filenames="HDA00002940302400011.png,HDA00002940302400022.png"\; state="\{\{state\}\}">R</figure-callout>}}_2^2{\mathrm{aI}}_2}{{({\mathrm{<figure-callout\; id="2"\; label="R"\; filenames="HDA00002940302400011.png,HDA00002940302400022.png"\; state="\{\{state\}\}">R</figure-callout>}}_2^2+a^2)}^{\frac{5}{2}}}$

Be total making a concerted effort:

$F=\frac{{3\mathrm{\&mu;}}_0}{2\mathrm{\&pi;}}\frac{\left({\mathrm{<figure-callout\; id="1"\; label="N"\; filenames="HDA00002940302400011.png"\; state="\{\{state\}\}">N</figure-callout>}}_1{\mathrm{\&pi;<figure-callout\; id="1"\; label="R"\; filenames="HDA00002940302400011.png"\; state="\{\{state\}\}">R</figure-callout>}}_1^2{I}_1\right)\left({\mathrm{<figure-callout\; id="2"\; label="N"\; filenames="HDA00002940302400011.png,HDA00002940302400022.png"\; state="\{\{state\}\}">N</figure-callout>}}_2{\mathrm{\&pi;<figure-callout\; id="2"\; label="R"\; filenames="HDA00002940302400011.png,HDA00002940302400022.png"\; state="\{\{state\}\}">R</figure-callout>}}_2^2{I}_2\right)}{{({\mathrm{<figure-callout\; id="2"\; label="R"\; filenames="HDA00002940302400011.png,HDA00002940302400022.png"\; state="\{\{state\}\}">R</figure-callout>}}_2^2+a^2)}^{\frac{5}{2}}}$

If I ₁, I ₂, be alternation, F also changes thereupon.

For easy to prepare, guarantee simultaneously product quality, two hot-wire coils are close around planar coil O ₁With close around planar coil O ₂

As previously mentioned, the structure of general non-permanent magnet systems loud speaker, in two parallel plane electrodes, placement is by the polymer vibration film (or foil electret) of the zona tensioning of stretching tight, due on two parallel, fixing plane electrodes, comprehensive, the driving uniformly of additional electrostatic force, and can sound on request.The utility model is to utilize two relative place close around planar coil O ₁, O ₂While passing to equidirectional electric current, both show as the effect of the power of inhaling mutually; If two is close around planar coil O ₁, O ₂While passing to reciprocal electric current, both show as the effect of the power of repelling each other; If pass to the electric current of alternation, its corresponding active force also changes with the variation of the electric current of alternation.

Close around planar coil O ₁With close around planar coil O ₂Step mode be one of following three kinds of modes:

1. close around planar coil O ₁The electric current that is led to is voice-frequency signalling current, and is close around planar coil O ₂The electric current that is led to is the constant-direct current electric current;

2. close around planar coil O ₁The electric current that is led to is voice-frequency signalling current, and is close around planar coil O ₂The electric current that is led to is treated voice-frequency signalling current;

3. close around planar coil O ₁The electric current that is led to is voice-frequency signalling current, and is close around planar coil O ₂For " Helmholtz " coil that is comprised of two coils, the electric current that (accompanying drawing 1) led to is treated voice-frequency signalling current;

Above-mentioned treated voice-frequency signalling current refers to: when audio signal was " just ", audio signal did not change, and directly passes into close around planar coil O ₁, and directly pass into close around planar coil O ₂In; When audio signal was " bearing ", audio signal directly passed into close around planar coil O ₁, pass into close around planar coil O ₂Audio signal be audio signal after processor is processed anti-phase variation, it is " just ".

The utility model step mode can adopt any in above-mentioned three kinds.

The processor that above-mentioned Audio Signal Processing is used, purpose are in order to reach close around planar coil O with passing into ₁Signal positive and negative two halves circumferential portion A, the B of signal (consider) as shown in accompanying drawing 2a, close around planar coil O if treated signal (A ,-B(C)) passes into ₂In as accompanying drawing 2b, the signal of processor is undertaken by following principle: when " just ", signal does not change, and passes into close around planar coil O when signal ₂In, when signal is " bearing ", after the treated and anti-phase variation of signal, then pass into close around planar coil O ₂In.All parts of signal are all by inputting after this rule process.Processor can not distortion, especially to audio frequency small-signal part; Processor can not have phase distortion, especially passes into close around planar coil O ₁Signal and through processing pass into close around planar coil O ₂Signal between phase distortion can not be arranged.

" Helmholtz " coil that above-mentioned two coils form is that a kind of the assurance has the device of uniform magnetic field in certain interval, and magnetic field is enhanced.If " Helmholtz " coil has a pair of coaxial coil, the electric current that its direction of winding is identical, the number of turns is identical, pass through is all I, coil radius is: R, two coils are apart: a, as shown in Figure 1: if when this is not equal to coil radius R value to apart a value between coaxial coil, Distribution of Magnetic Field on axis is just inhomogeneous, and when a=R, the Distribution of Magnetic Field on axis just evenly.

Daily required in order to meet, during to high-power loud speaker, above-mentioned treated voice-frequency signalling current first amplifies by power amplifier before processing.

If high-power loud speaker, the audio signal a-road-through enters close around planar coil O ₁, after another road audio signal is first amplified by power amplifier, then the processing of treated device passes into close around planar coil O again ₂, also it can be designed on the pcb board of terminal connections terminal because the processing of power amplifier, processor is more more complex, perhaps design is placed on the fixed coil side.Because common coil-moving speaker vibrating diaphragm is connected on the wire of coil (voice coil loudspeaker voice coil), mechanical oscillation part quality is larger, and the electroacoustic conversion synchronization is poor, and distortion will increase, particularly high frequency response is poor, and the technical solution of the utility model has just been avoided such problem.

If the dynamic planar loudspeakers that power is little, the audio signal a-road-through enters close around planar coil O ₁, pass into again close around planar coil O after the processing of the first treated device in another road ₂, because processor is less, also simply it can be designed on the pcb board of terminal connections terminal.

Described non-magnet steel system speaker, comprise close around planar coil O ₁, with close around planar coil O ₁Be connected or integrated vibrating diaphragm, close around planar coil O ₂, terminals P CB wiring board and line and basin body support, the bottom of basin body support is provided with support baseboard, and is close around planar coil O ₂Laterally be installed on support baseboard, close around planar coil O ₁Parallel be located at close around planar coil O ₂Top, basin body support in, and close around planar coil O ₁With close around planar coil O ₂Between distance non-vanishing, terminals P CB wiring board and line thereof are located on the basin body support.

For easy to use, described terminals P CB wiring board is provided with first signal input, secondary signal input and the signal processor between first signal input and secondary signal input, audio signal is from first signal input, the input of secondary signal input, and a road directly passes into close around planar coil O ₁, another road passes into close around planar coil O after signal processor processes ₂

In order to strengthen two interaction forces between coil, close around planar coil O ₂Ring in be provided with soft iron core.

In order to reduce the resistance of vibrating diaphragm vibration, prevent simultaneously the pollution of the foreign matters such as dust, on the basin body support, the below of vibrating diaphragm is provided with the phono-equalizer unit hole, the phono-equalizer unit hole is provided with dustcloth.

, for easy to use, prevent from simultaneously polluting, on the basin body support, the top of vibrating diaphragm is provided with the guard shield of perforate.

The technology that the utility model is not particularly limited is prior art.

Beneficial effect: the utility model receiver and loud speaker adapt to multiple occasion, can reach unanimity on the dynamic distribution of amplitudes of vibrating membrane, not only simple, miniature, ultra-thin, member is few, and in concrete the manufacturing, can meet and can utilize the production of automatic production line tissue.

Description of drawings

Fig. 1 is the Distribution of Magnetic Field of " Helmholtz " coaxial coil;

In Fig. 2, a is close around planar coil O for passing into ₁Audio signal, b be treated pass into close around planar coil O ₂Audio signal;

Fig. 3 is one has two interactions coaxial, current-carrying flatwise coil system to try hard to;

Fig. 4 is the structural representation of the utility model receiver or loud speaker;

Fig. 5 is that on terminals P CB wiring board, signal is processed schematic diagram;

In figure: 1 is vibrating diaphragm, and 2 is close around planar coil O ₁, 3 is terminals P CB wiring board, and 4 is line, and 5 is bearing plate, and 6 is close around planar coil O ₂, 7 is dustcloth, and 8 is the basin body support, and 9 is guard shield, and 10 is soft iron core, and 11 is the first signal input, and 12 is the secondary signal input, and 13 is signal processor, 14 is that signal is to close around planar coil O ₁, 15 is that signal is to close around planar coil O ₂

Embodiment

Below in conjunction with accompanying drawing, the utility model is further described.

Embodiment 1

As shown in Figure 4 and Figure 5, non-magnet steel system receiver, comprise close around planar coil O ₁, with close around planar coil O ₁Integrated vibrating diaphragm, close around planar coil O ₂, terminals P CB wiring board and line and basin body support, the bottom of basin body support is provided with support baseboard, and is close around planar coil O ₂Laterally be installed on support baseboard, close around planar coil O ₁Parallel be located at close around planar coil O ₂Top, basin body support in, and close around planar coil O ₁With close around planar coil O ₂Between distance non-vanishing, terminals P CB wiring board and line thereof are located on the basin body support; Close around planar coil O ₂Ring in be provided with soft iron core; On the basin body support, the below of vibrating diaphragm is provided with the phono-equalizer unit hole, the phono-equalizer unit hole is provided with dustcloth; On the basin body support, the top of vibrating diaphragm is provided with the guard shield of perforate.

Described terminals P CB wiring board is provided with first signal input, secondary signal input and the signal processor between first signal input and secondary signal input, audio signal is from first signal input, the input of secondary signal input, and a road directly passes into close around planar coil O ₁, another road passes into close around planar coil O after signal processor processes ₂

As shown in Figure 5, audio signal is from first signal input, the input of secondary signal input, and a road directly passes into close around planar coil O ₁, another road passes into close around planar coil O after signal processor processes ₂, due to close around planar coil O ₂Be fixed on bearing plate, close around planar coil O ₁With close around planar coil O ₂After interaction, close around planar coil O ₂Motionless, and make with close around planar coil O ₁Integrated vibrating diaphragm vibrates and sounds.

Embodiment 2

As shown in Figure 4 and Figure 5, non-magnet steel system speaker, comprise close around planar coil O ₁, with close around planar coil O ₁Integrated vibrating diaphragm, close around planar coil O ₂, terminals P CB wiring board and line and basin body support, the bottom of basin body support is provided with support baseboard, and is close around planar coil O ₂Laterally be installed on support baseboard, close around planar coil O ₁Parallel be located at close around planar coil O ₂Top, basin body support in, and close around planar coil O ₁With close around planar coil O ₂Between distance non-vanishing, terminals P CB wiring board and line thereof are located on the basin body support; Close around planar coil O ₂Ring in be provided with soft iron core; On the basin body support, the below of vibrating diaphragm is provided with the phono-equalizer unit hole, the phono-equalizer unit hole is provided with dustcloth; On the basin body support, the top of vibrating diaphragm is provided with the guard shield of perforate.

Described terminals P CB wiring board is provided with first signal input, secondary signal input and the signal processor between first signal input and secondary signal input, audio signal is from first signal input, the input of secondary signal input, and a road directly passes into close around planar coil O ₁, another road passes into close around planar coil O after signal processor processes ₂

As shown in Figure 5, audio signal is from first signal input, the input of secondary signal input, and a road directly passes into close around planar coil O ₁, another road passes into close around planar coil O after signal processor processes ₂, due to close around planar coil O ₂Be fixed on bearing plate, close around planar coil O ₁With close around planar coil O ₂After interaction, close around planar coil O ₂Motionless, and make with close around planar coil O ₁Integrated vibrating diaphragm vibrates and sounds.

Claims (18)

1. non-magnet steel system receiver, it is characterized in that: comprise two hot-wire coils, wherein a coil is provided with coupled vibrating diaphragm.

2. non-magnet steel system receiver as claimed in claim 1, it is characterized in that: two hot-wire coils are relative, parallel placement.

3. non-magnet steel system receiver as claimed in claim 1 or 2, it is characterized in that: two hot-wire coils are close around planar coil O ₁With close around planar coil O ₂

4. non-magnet steel system receiver as claimed in claim 3, is characterized in that: close around planar coil O ₁With close around planar coil O ₂Step mode be one of following three kinds of modes:

1. close around planar coil O ₁The electric current that is led to is voice-frequency signalling current, and is close around planar coil O ₂The electric current that is led to is the constant-direct current electric current;

2. close around planar coil O ₁The electric current that is led to is voice-frequency signalling current, and is close around planar coil O ₂The electric current that is led to is treated voice-frequency signalling current;

3. close around planar coil O ₁The electric current that is led to is voice-frequency signalling current, and is close around planar coil O ₂For " Helmholtz " coil that is formed by two coils, close around planar coil O ₂The electric current that is led to is treated voice-frequency signalling current;

Above-mentioned treated voice-frequency signalling current refers to: when audio signal was " just ", audio signal did not change, and directly passes into close around planar coil O ₁, and directly pass into close around planar coil O ₂In; When audio signal was " bearing ", audio signal directly passed into close around planar coil O ₁, pass into close around planar coil O ₂Audio signal be audio signal after processor is processed anti-phase variation, it is " just ".

5. non-magnet steel system receiver as claimed in claim 4, is characterized in that: comprise close around planar coil O ₁, with close around planar coil O ₁Be connected or integrated vibrating diaphragm, close around planar coil O ₂, terminals P CB wiring board and line and basin body support, the bottom of basin body support is provided with support baseboard, and is close around planar coil O ₂Laterally be installed on support baseboard, close around planar coil O ₁Parallel be located at close around planar coil O ₂Top, basin body support in, and close around planar coil O ₁With close around planar coil O ₂Between distance non-vanishing, terminals P CB wiring board and line thereof are located on the basin body support.

6. non-magnet steel system receiver as claimed in claim 5, it is characterized in that: described terminals P CB wiring board is provided with first signal input, secondary signal input and the signal processor between first signal input and secondary signal input, audio signal is from first signal input, the input of secondary signal input, and a road directly passes into close around planar coil O ₁, another road passes into close around planar coil O after signal processor processes ₂

7. non-magnet steel system receiver as claimed in claim 5, is characterized in that: close around planar coil O ₂Ring in be provided with soft iron core.

8. non-magnet steel system receiver as claimed in claim 5 is characterized in that: on the basin body support, the below of vibrating diaphragm is provided with the phono-equalizer unit hole, the phono-equalizer unit hole is provided with dustcloth.

9. non-magnet steel system receiver as claimed in claim 5 is characterized in that: on the basin body support, the top of vibrating diaphragm is provided with the guard shield of perforate.

10. non-magnet steel system speaker, it is characterized in that: comprise two hot-wire coils, wherein a coil is provided with coupled vibrating diaphragm.

11. non-magnet steel system speaker as claimed in claim 10 is characterized in that: two hot-wire coils are relative, parallel placement.

12. non-magnet steel system speaker as described in claim 10 or 11 is characterized in that: two hot-wire coils are close around planar coil O ₁With close around planar coil O ₂

13. non-magnet steel system speaker as claimed in claim 12 is characterized in that: close around planar coil O ₁With close around planar coil O ₂Step mode be one of following three kinds of modes:

1. close around planar coil O ₁The electric current that is led to is voice-frequency signalling current, and is close around planar coil O ₂The electric current that is led to is the constant-direct current electric current;

2. close around planar coil O ₁The electric current that is led to is voice-frequency signalling current, and is close around planar coil O ₂The electric current that is led to is treated voice-frequency signalling current;

3. close around planar coil O ₁The electric current that is led to is voice-frequency signalling current, and is close around planar coil O ₂For " Helmholtz " coil that is formed by two coils, close around planar coil O ₂The electric current that is led to is treated voice-frequency signalling current;

Above-mentioned treated voice-frequency signalling current refers to: when audio signal was " just ", audio signal did not change, and directly passes into close around planar coil O ₁, and directly pass into close around planar coil O ₂In; When audio signal was " bearing ", audio signal directly passed into close around planar coil O ₁, pass into close around planar coil O ₂Audio signal be audio signal after processor is processed anti-phase variation, it is " just ".

14. non-magnet steel system speaker as claimed in claim 13 is characterized in that: comprise close around planar coil O ₁, with close around planar coil O ₁Be connected or integrated vibrating diaphragm, close around planar coil O ₂, terminals P CB wiring board and line and basin body support, the bottom of basin body support is provided with support baseboard, and is close around planar coil O ₂Laterally be installed on support baseboard, close around planar coil O ₁Parallel be located at close around planar coil O ₂Top, basin body support in, and close around planar coil O ₁With close around planar coil O ₂Between distance non-vanishing, terminals P CB wiring board and line thereof are located on the basin body support.

15. non-magnet steel system speaker as claimed in claim 14, it is characterized in that: described terminals P CB wiring board is provided with first signal input, secondary signal input and the signal processor between first signal input and secondary signal input, audio signal is from first signal input, the input of secondary signal input, and a road directly passes into close around planar coil O ₁, another road passes into close around planar coil O after signal processor processes ₂

16. non-magnet steel system speaker as claimed in claim 14 is characterized in that: close around planar coil O ₂Ring in be provided with soft iron core.

17. non-magnet steel system speaker as claimed in claim 14 is characterized in that: on the basin body support, the below of vibrating diaphragm is provided with the phono-equalizer unit hole, the phono-equalizer unit hole is provided with dustcloth.

18. non-magnet steel system speaker as claimed in claim 14 is characterized in that: on the basin body support, the top of vibrating diaphragm is provided with the guard shield of perforate.

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