CN216775014U - Earphone loudspeaker that jumbo size movable coil adds electrostatic radiation and combines together - Google Patents

Abstract

The utility model discloses a large-size moving coil and electrostatic radiation combined earphone speaker, which relates to the technical field of earphones and comprises a support, wherein the support is divided into a front-end bass cavity and a rear-end bass cavity; the loudspeaker component is arranged in the rear-end high pitch cavity of the support and comprises an electrostatic radiation vibrating diaphragm, wherein a first washer, a second washer, a first magnet and a second magnet are sequentially arranged on two sides of the electrostatic radiation vibrating diaphragm, the two first magnets are annular, first coils are arranged in the two first magnets, the second magnets are annular, second coils are arranged in the two first magnets, and magnetic poles of the two first magnets and the magnetic poles of the second magnets are arranged in the same direction.

Description

Earphone loudspeaker that jumbo size movable coil adds electrostatic radiation and combines together

Technical Field

The utility model relates to the technical field of earphones, in particular to an earphone horn combining a large-size moving coil and electrostatic radiation.

Background

The horn is essentially an energy conversion device, which converts electric energy (alternating current) into mechanical energy, and the mechanical device drives a vibrating diaphragm of the horn to vibrate, so that the mechanical energy is converted into sound energy. The earphone speaker in the prior art can be classified into moving coil type, moving iron type, electrostatic type, piezoelectric type, etc. according to the different generation principles, wherein the moving coil type speaker is most commonly used. The large-size moving-coil loudspeaker mainly comprises a circuit element, a support, a magnet, a washer, a coil, a diaphragm and the like, wherein the coil is adhered to the diaphragm and is positioned in a magnetic field formed by the magnet, when alternating current of signals is introduced into the coil through the circuit element, the coil can move in the magnetic field and drive the diaphragm to vibrate, and the diaphragm vibrates to cause air movement to form sound waves. The structure has the defects that the diaphragm is a thin film, the inner cavity of the loudspeaker only has a single magnet and a single voice coil to drive the diaphragm to sound, and low, medium and high frequencies in music cannot be well distinguished, so that the quality of sound output by the loudspeaker is influenced, low-frequency and medium and high-frequency music parts cannot be well output at the same time, the sound is poor in dynamic state and free of layering, high pitch is not generated due to the fact that a low-pitch effect is achieved, and a low-pitch part is lost due to the fact that a high-frequency range is achieved.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a large-size earphone speaker combining a moving coil and electrostatic radiation, which can simultaneously output a low-frequency range and a middle-high frequency range, broaden a sound field, and enable the sound emitted by the speaker to be full in bass and clear in treble, and have layering and better acoustic characteristics.

In order to achieve the purpose, the utility model provides the following technical scheme:

a large-size moving coil and electrostatic radiation combined earphone speaker comprises a support, wherein the support is divided into a front-end bass cavity and a rear-end bass cavity;

a loudspeaker component is arranged in the high pitch cavity at the rear end of the support, the loudspeaker component comprises an electrostatic radiation vibrating diaphragm, a first washer, a second washer, a first magnet and a second magnet are sequentially arranged on both sides of the electrostatic radiation diaphragm, the two first magnets are annular, and a first coil is arranged in the ring of each first magnet, the second magnets are all annular, second coils are arranged in the second magnets, the magnetic poles of the two first magnets and the second magnets are arranged in the same direction, the two first washers and the two second washers are respectively clamped on two sides of the edge of the electrostatic radiation vibrating diaphragm, so as to fix the electrostatic radiation diaphragm and form a vibration space between the ring holes of the first washer and the second washer, the high pitch cavity is provided with a high pitch sound outlet hole communicated with the vibration space, and the high pitch sound outlet hole is formed in the middle hollow area of the first coil;

the utility model discloses a support, including support, first magnet, second magnet, third magnet, second magnet, third magnet, second magnet, third magnet, and second magnet, third magnet, and second magnet, and third magnet, and second magnet, and.

In one alternative: the outer surface of the electrostatic radiation diaphragm is covered with an insulating layer.

In one alternative: the end part of the bracket is provided with a central column, the central column is provided with a circular through hole, an end groove of the bracket is internally provided with an annular round hole tone adjusting hole and an annular square tone adjusting hole, the central column is provided with a step, the plane of the annular round hole tone adjusting hole of the bracket is provided with a platform, and the bracket is also provided with a notch.

In one alternative: the middle of the magnetic conduction U cup ring is provided with a through hole for embedding and aligning a third magnet, the third magnet and a third washer are sequentially assembled on the magnetic conduction U cup ring, and the inner diameters of the third magnet and the third washer are aligned with the through hole in the magnetic conduction U cup ring.

In one alternative: be provided with the high pitch protecting cover on the center post, be equipped with out the sound hole on the high pitch protecting cover, high pitch protecting cover is inside to be equipped with sound wave reflection sound chamber.

In one alternative: the bracket is provided with a low-frequency circuit board for fixing circuit elements; be equipped with the high frequency circuit board on the support, be provided with on the high frequency circuit board and be used for separating into the frequency divider of the different parts of high pitch and bass with audio signal and respectively with high pitch circuit unit and bass circuit unit that the frequency divider electricity is connected, the lead wire of first coil and second coil with high pitch circuit unit electricity is connected, the lead wire and the bass circuit unit electricity of third coil are connected.

In one alternative: the bass ring-shaped vibrating diaphragm is arranged into a hollow ring-shaped folded edge, the vibrating diaphragm is divided into two circles by a raised central surface on the back surface, outer ring grains and inner ring grains are respectively arranged on the two circles, and the central plane is connected with the third coil.

In one alternative: the first magnet and the second magnet are provided with the same outer diameter and inner diameter.

In one alternative: the outer diameter and the inner diameter of the first washer and the second washer are set to be equal.

Compared with the prior art, the utility model has the advantages that:

in the rear-end high pitch cavity, when alternating current carrying audio signals is introduced into the two coils, the magnetic force of the two magnets is changed, and due to the structural characteristics, high-frequency signals can radiate the vibrating diaphragm to synchronously vibrate along with the vibrating diaphragm, and are converted into sound energy through electric energy, so that sound with a high-frequency range is output;

in the front-end bass cavity, when the third coil is introduced with alternating current carrying audio signals, the magnetic field space can become an electromagnetic field, and the third coil generates cutting motion along with the electromagnetic field to drive the bass vibrating diaphragm to vibrate, so that the bass vibrating diaphragm can not respond to a high-frequency range but can better output the sound of the low-frequency range;

with the arrangement, the utility model has the low-frequency loudspeaker unit for responding and outputting low-frequency range sound and the high-frequency loudspeaker unit for responding and outputting high-frequency range sound, and widens the sound field, so that the output sound has low-frequency and high-frequency ranges, and has layering and better acoustic characteristics.

Drawings

FIG. 1 is an exploded view of a large-sized moving coil plus electrostatic radiation horn according to the present invention;

FIG. 2 is a structural diagram of a middle bracket of a large-size moving coil plus electrostatic radiation loudspeaker according to the present invention;

FIG. 3 is a structural diagram of a bass ring-shaped diaphragm in a large-sized moving coil plus electrostatic radiation loudspeaker according to the present invention;

FIG. 4 is a structural diagram of a protective cover of a large-sized moving coil and electrostatic radiation horn according to the present invention;

FIG. 5 is a structural diagram of a magnetic U-cup in a large-sized moving coil and electrostatic radiation horn according to the present invention;

FIG. 6 is a structural diagram of a high-pitch circuit board in a large-sized moving coil plus electrostatic radiation horn according to the present invention;

FIG. 7 is a sectional view of a large-sized moving coil plus electrostatic radiation speaker according to the present invention;

fig. 8 is a sectional view of a large-sized moving coil and moving coil tweeter according to the present invention;

FIG. 9 is an exploded view of a large size moving coil plus moving coil tweeter in accordance with the present invention; .

Notations for reference numerals: the circuit board fixing device comprises a support 22, a central column 22A, a central column through hole 22B, a circular sound adjusting hole 22C, an arc sound adjusting hole 22D, a central column rear cavity step 22E, a circuit board fixing surface 22F, a support notch 22G, a support front end first step 22H, a support front end second step 22I, a support U-shaped groove 22J and a central column lead groove 22K;

a bass ring-shaped vibrating diaphragm 31, a diaphragm middle hole 31A, an inner pattern area 31B, an outer pattern area 31C and a coil position 31D;

a protecting cover 21, a protecting cover step 21A, a protecting cover sound outlet hole 21B and a protecting cover inner cavity 21C;

the magnetic conduction U cup 35 and the U cup inner cavity 35A, U cup through hole 35B, U cup platform surface 35C;

a high pitch circuit board 18, a circuit board frequency division electronic component 18A and a circuit board gap 18B;

the device comprises a first coil 11, a first magnet 12, a first washer 13, an electrostatic radiation diaphragm 14, a second washer 15, a second coil 16 and a second magnet 17;

a third coil 32, a third washer 33, a third magnet 34, a low-frequency circuit board 23, a tuning net 24 and a tuning paper 25.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments; in the drawings or the description, the same reference numerals are used for similar or identical parts, and the shape, thickness or height of each part may be enlarged or reduced in practical use. The examples are given solely for the purpose of illustration and are not intended to limit the scope of the utility model. Any obvious modifications or variations can be made to the present invention without departing from the spirit or scope of the present invention.

In one embodiment, as shown in fig. 1, the earphone speaker combining large-sized moving coil and electrostatic radiation provided by the present invention comprises a support 22, wherein the support 22 is divided into a front bass chamber (not shown) and a rear treble chamber (not shown);

a horn member is disposed in the treble chamber at the rear end of the support 22, the horn member including the electrostatic radiation diaphragm 14, a first washer 13, a second washer 15, a first magnet 12 and a second magnet 17 are sequentially arranged on both sides of the electrostatic radiation diaphragm 14, the two first magnets 12 are annular, and a first coil 11 is arranged in the ring of each first magnet 12, the second magnets 12 are all annular, second coils 16 are arranged in the rings, the magnetic poles of the two first magnets 12 and the second magnets 17 are arranged in the same direction, the two first washers 13 and the second washers 15 are respectively clamped on two sides of the edge of the electrostatic radiation diaphragm 14, so as to fix the electrostatic radiation diaphragm 14 and form a vibration space between the annular holes of the two first washers 13 and the second washers 15, the high pitch cavity is provided with a high pitch sound outlet hole communicated with the vibration space, and the high pitch sound outlet hole is formed in the middle hollow area of the first coil 11;

a third magnet 34 and a magnetic conduction U-cup ring 35 for containing the third magnet 34 are arranged in a front-end bass cavity of the support 22, one end of the third magnet 34 is abutted against an inner bottom wall of the magnetic conduction U-cup ring 35, the other end of the third magnet 34 is covered with a third washer 33, an annular cavity (not shown in the figure) is arranged between the inner side wall of the third magnet 34 and the inner side wall of the magnetic conduction U-cup ring 35, the magnetic conduction U-cup ring 35 is embedded in a front-end U-shaped groove of the support 22, a bass ring-shaped diaphragm 31 is arranged on a front-end step of the support 22, a third coil 32 is fixedly connected to one side, close to an opening, of the bass ring-shaped diaphragm 31, the third coil 32 is located in the annular cavity, a tuning net 24 is arranged on a rear-end sound cavity inner ring of the support 22, and tuning paper 25 is arranged on the outer ring;

in one embodiment, as shown in fig. 1, the outer surface of the electrostatic radiation diaphragm 15 is covered with an insulating layer;

in one embodiment, as shown in fig. 1 and fig. 2, a central pillar 22A is disposed on one end of the bracket 22, a circular through hole 22B is disposed on the central pillar 22A, an annular circular hole tone tuning hole 22C and an annular square tone tuning hole 22D are disposed in a groove at one end of the bracket 22, a step 22E is disposed on the central pillar 22A, a platform 22F is disposed on a plane of the annular circular hole tone tuning hole 22C of the bracket 22, and a notch 22J is further disposed on the bracket 22;

in one embodiment, as shown in fig. 1 and 5, a through hole for inserting and aligning the third magnet 34 is formed in the middle of the magnetic conduction U-cup ring 35, the third magnet 34 and the third washer 33 are sequentially assembled on the magnetic conduction U-cup ring 35, and the inner diameters of the third magnet 34 and the third washer 33 are aligned with the through hole of the magnetic conduction U-cup ring 35;

in one embodiment, as shown in fig. 1 and 4, a high-pitched protective cover 21 is disposed on the central pillar 22A, a sound outlet hole 21A is disposed on the high-pitched protective cover 21, and a sound wave reflecting sound cavity 21B is disposed inside the high-pitched protective cover 21;

in one embodiment, as shown in fig. 1, 2 and 6, the bracket 22 is provided with a low frequency circuit board 23 for fixing circuit components; a high-frequency circuit board 18 is arranged on the bracket 22, a frequency divider 18A for separating an audio signal into a high-pitch part and a low-pitch part, a high-pitch circuit unit (not shown) and a low-pitch circuit unit (not shown) are arranged on the high-frequency circuit board 18, the high-pitch circuit unit and the low-pitch circuit unit are respectively electrically connected with the frequency divider 18A, leads of the first coil 11 and the second coil 16 are electrically connected with the high-pitch circuit unit, and a lead of the third coil 32 is electrically connected with the low-pitch circuit unit;

in one embodiment, as shown in fig. 1 and fig. 3, the bass ring-shaped diaphragm 31 is configured as a hollow ring-shaped folded edge 31A, the bass ring-shaped diaphragm 31 divides the diaphragm into two circles (not shown) by a back-raised central surface 32D, the two circles are respectively provided with an outer ring grain 31B and an inner ring grain 31C, and the central surface 32D is connected to the third coil 32;

in one embodiment, as shown in FIG. 1, the first and second magnets 12, 17 have outer and inner diameters that are set equal;

in one embodiment, as shown in fig. 1, the first washer 13 and the second washer 15 are provided with an outer diameter and an inner diameter which are equal.

The specific working effects of the utility model are as follows:

the bracket 22 is divided into a front bass chamber (not shown) and a rear treble chamber (not shown) by centering on the center post 22A, the front bass chamber is provided with a low frequency horn member for outputting a low frequency range sound, and the rear treble chamber is provided with a high frequency horn unit for outputting a high frequency range sound and a treble sound output hole 22B;

the central column 22A is provided with two first magnets 12 and two second magnets 17, the two first magnets 12 and the two second magnets 17 are arranged in the same magnetic direction, a magnetic field space with suction is formed in the space between the first magnets 12 and the second magnets 17, correspondingly, a first coil 11 is arranged in the inner space of the first magnets 12, a second coil 16 is arranged in the inner space of the second magnets 17, a first washer 13 and a second washer 15 are clamped on the edges of two sides of an electrostatic radiation vibrating diaphragm 14, and the inner spaces of the two washers form a vibrating space of the electrostatic radiation vibrating diaphragm, when the first coil 11 and the second coil 16 are connected with the alternating current carrying the audio signal, the magnetic force between the first magnet 12 and the second magnet 17 will be changed, due to the structural characteristics, the high-frequency signal can radiate the vibrating diaphragm 14 to synchronously vibrate therewith, and is converted into sound energy through electric energy, so that sound with a high-frequency range is output;

the first coil 11 arranged in the first magnet 12 and the second coil 16 arranged in the second magnet 17 may be arranged in parallel, when the first coil 11 and the corresponding first magnet 12 and the second coil 16 and the corresponding first magnet 17 generate the same influence to cause the first magnet 12 and the second magnet 17 to generate the same magnetic force change, and the magnetic poles of the first magnet 12 and the second magnet 17 are arranged in the same direction, that is, the magnetic field space where the electrostatic radiation diaphragm 14 is located is formed by an S pole and an N pole, which will play a role of superimposed magnetic force adsorption on the electrostatic radiation diaphragm 14 to make the electrostatic radiation diaphragm 14 easily generate synchronous vibration, because the electrostatic radiation diaphragm 14 is directly located in the structural characteristic that the magnetic field space is vibrated and sounded by the magnetic force change, the higher the fluctuation frequency in the signal, the faster the magnetic force change, the more easily cause the synchronous vibration of the electrostatic radiation diaphragm 14, and the low frequency fluctuation, the electrostatic radiation diaphragm 14 can more sensitively recognize the high frequency fluctuation in the signal, and then output the sound with high frequency or very high frequency range, and just because the electrostatic radiation diaphragm 14 cannot respond well to the low frequency range, the earphone speaker in this embodiment is further provided with a bass cavity capable of outputting the sound with low frequency range;

a third magnet 34 and a magnetic conduction U cup 35 for containing the third magnet 34 are arranged in a bass cavity at the front end of the support 22, the inner diameter of the third magnet 34 is tangent with the inner diameter of the magnetic conduction U cup 35, a third washer 33 with the same size as the third magnet is covered at the upper end of the third magnet 34, the inner diameter of the third washer 33 is tangent with the inner diameter of the third magnet 32, a magnetic field space is formed between the outer diameter of the third magnet 34 and the inner diameter of the magnetic conduction U cup, a bass ring-shaped vibrating diaphragm 31 is arranged on a first step of a bass cavity at the front end of the support 22, a third coil 32 is fixedly connected on the bass ring-shaped vibrating diaphragm 31, and the other end of the third coil 32 is positioned in the magnetic field empty sound, when the third coil 32 is fed with an alternating current carrying an audio signal it will make the magnetic field space an electromagnetic field, the third coil 32 generates cutting motion to drive the bass ring-shaped diaphragm 31 to vibrate, and the structure enables the bass ring-shaped diaphragm 31 not to respond to the high-frequency range but to output the sound of the low-frequency range better;

in order to avoid the interference effect of the current on the electrostatic radiation diaphragm 14 in the magnetic field, the outer surface of the electrostatic radiation diaphragm 14 is compounded with an insulating layer made of an insulating material, the insulating material includes resin, rubber, insulating fiber or insulating polymer material, and the like, the electrostatic radiation diaphragm 14 may be a metal having a magnetic force absorption performance, such as pure iron, low-carbon steel, silicon steel, and alloys formed by various iron products and rare earth elements: the magnetic absorption performance of the alloy is superior to that of pure metal, and in the embodiment, the electrostatic radiation diaphragm 14 is made of iron-nickel alloy;

because the sound chamber is the important component of earphone loudspeaker, the effect in sound chamber is mainly that the sound short circuit is eliminated, restrain the sound resonance, widen the frequency response scope, reduce the distortion, therefore, in this embodiment, support 22 has set up multiple step and sound chamber, in order to make the good sound production route of high frequency sound of the sound production route of low frequency sound separate each other, avoid the sound to overlap resonance influence tone quality, the centre post 25A has been set up to support 22, make the high pitch sound wave of electrostatic radiation send from through-hole 22B in support 22's centre post 25A, avoid the sound diffusion, and support 22's through-hole department still is provided with the protecting cover 21 that can cover the sound.

The above description is only for the specific embodiments of the present disclosure, but the scope of the present disclosure is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present disclosure, and all the changes or substitutions should be covered within the scope of the present disclosure. Therefore, the protection scope of the present disclosure shall be subject to the protection scope of the claims.

Claims (9)

1. A large-size moving coil and electrostatic radiation combined earphone speaker comprises a bracket, and is characterized in that the bracket is divided into a front-end bass cavity and a rear-end bass cavity;

a loudspeaker component is arranged in the high pitch cavity at the rear end of the support, the loudspeaker component comprises an electrostatic radiation vibrating diaphragm, a first washer, a second washer, a first magnet and a second magnet are sequentially arranged on both sides of the electrostatic radiation diaphragm, the two first magnets are annular, and a first coil is arranged in the ring of each first magnet, the second magnets are all annular, second coils are arranged in the second magnets, the magnetic poles of the two first magnets and the second magnets are arranged in the same direction, the two first washers and the two second washers are respectively clamped on two sides of the edge of the electrostatic radiation vibrating diaphragm, so as to fix the electrostatic radiation vibrating diaphragm and form a vibrating space between the annular holes of the first washer and the second washer, the high pitch cavity is provided with a high pitch sound outlet hole communicated with the vibration space, and the high pitch sound outlet hole is formed in the middle hollow area of the first coil;

be provided with the third magnetite in the front end bass intracavity of support and be used for holding the magnetic conduction U cup ring of third magnetite, a tip of third magnetite with the interior bottom wall of magnetic conduction U cup ring supports, and another tip of third magnetite covers there is the third china department, just the inside wall of third magnetite with be equipped with the toroidal cavity between the inside wall of magnetic conduction U cup ring, magnetic conduction U cup ring inlay in the front end U type inslot of support is provided with bass ring type vibrating diaphragm on the support front end step, be close to open-ended one side fixedly connected with third coil of bass ring type vibrating diaphragm, the third coil is located in the toroidal cavity, be provided with the tuning net on the support rear end sound chamber inner ring, be equipped with the tuning paper on the outer loop.

2. The large-sized moving coil plus electrostatic radiation combined earphone speaker as claimed in claim 1, wherein the outer surface of the electrostatic radiation diaphragm is covered with an insulating layer.

3. The earphone speaker combined with the large-sized moving coil and the electrostatic radiation as claimed in claim 1, wherein a central post is provided on one end of the support, a circular through hole is provided on the central post, an annular circular hole tuning hole and an annular square tuning hole are provided in a groove on one end of the support, a step is provided on the central post, a platform is provided on a plane of the annular circular hole tuning hole of the support, and a notch is further provided on the support.

4. The large-size moving coil and electrostatic radiation combined earphone speaker according to claim 1, wherein a through hole for embedding and aligning a third magnet is formed in the middle of the magnetic conduction U-cup ring, the third magnet and the third washer are sequentially assembled on the magnetic conduction U-cup ring, and inner diameters of the third magnet and the third washer are aligned with the through hole in the magnetic conduction U-cup ring.

5. The large size moving coil plus electrostatic radiation combined earphone speaker as claimed in claim 3, wherein the central post is provided with a high pitch cover, the high pitch cover is provided with a sound outlet hole, and the high pitch cover is internally provided with a sound wave reflecting sound cavity.

6. The combined large-sized moving coil and electrostatic radiation earphone speaker as claimed in claim 1, wherein the support is provided with a low frequency circuit board for fixing circuit components; be equipped with the high frequency circuit board on the support, be provided with on the high frequency circuit board and be used for separating into the frequency divider of the different parts of high pitch and bass with audio signal and respectively with high pitch circuit unit and bass circuit unit that the frequency divider electricity is connected, the lead wire of first coil and second coil with high pitch circuit unit electricity is connected, the lead wire and the bass circuit unit electricity of third coil are connected.

7. The combination large-sized moving coil and electrostatic radiation earphone speaker as claimed in claim 6, wherein the bass ring-shaped diaphragm is configured as a hollow ring-shaped folded edge, the bass ring-shaped diaphragm has a raised central surface on a reverse side to divide the diaphragm into two circles, the two circles are respectively provided with outer ring lines and inner ring lines, and the central plane is connected to the third coil.

8. The large size moving coil plus electrostatic radiation combined earphone speaker as claimed in claim 1, wherein the first and second magnets are arranged so that the outer and inner diameters are equal.

9. The combination large scale moving coil plus electrostatic radiation earphone speaker according to claim 1, wherein the first washer and the second washer are configured to have an outer diameter and an inner diameter that are equal.

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