CN206820999U - Annular omnidirectional loudspeaker and audio amplifier - Google Patents

Abstract

The utility model belongs to speaker technology field, discloses a kind of annular omnidirectional loudspeaker and audio amplifier, and the annular omnidirectional loudspeaker includes magnetic circuit system and vibrational system；Wherein, the vibrational system includes annular diaphragm and the voice coil loudspeaker voice coil being fitted on the annular diaphragm；The magnetic circuit system includes the magnetic group that annular is set, and the magnetic group includes being arranged on the interior magnetic group on the inside of the vibrational system and/or the outer magnetic group being arranged on the outside of the vibrational system.The utility model using cylindric annular diaphragm can in the range of 360 degree of annular uniform vibration sounding, it is achieved thereby that 360 degree of Omnibearing even propagates the effect of sound around loudspeaker, improve the range of voice of loudspeaker, so that user optional position around loudspeaker can experience equal audio, the free degree for listening to sound is substantially increased.

Description

Annular omnidirectional loudspeaker and audio amplifier

Technical field

The utility model belongs to speaker technology field, is related to a kind of annular omnidirectional loudspeaker and audio amplifier.

Background technology

Currently used loudspeaker is different according to its principle of sound, is broadly divided into moving-coil type, electrostatic (electric capacity) formula and plane Diaphragm-vibrating type.Wherein, moving-coil type and plane diaphragm-vibrating type are to utilize electromagnetic force transducing sounding, i.e., by controlling voice coil loudspeaker voice coil in fixed magnetic field Electric current produces the electromagnetic field of change, so as to drive diaphragm oscillations sounding；And electrostatic (electric capacity) formula is sent out using electrostatic force transducing Sound, i.e., powered vibrating diaphragm is placed in electric field, diaphragm oscillations sounding is driven using the electrostatic force between electric charge on vibrating diaphragm and pole plate.

Loudspeaker of the prior art can effectively realize the reduction and broadcasting of sound, resolution, responding ability (speed, Intensity and frequency range etc.) and tonequality etc. can meet most voice applications scenes.

But inventor has found during the utility model is realized, loudspeaker of the prior art depends on vibrating diaphragm Vibration sounding, and be limited to the direction of active force, the directionality of diaphragm oscillations is stronger, thus the sound that sends of loudspeaker have it is stronger Directive property, this strongly limits the range of receiving of sound.The loudspeaker of prior art is suitable for earphone or constant bearing is listened to Application scenarios, but in some application-specific scenes, such as when fixed position or more people do not listen in the multiple positions in periphery, it is difficult to Ensure actual audio.

Utility model content

(1) purpose of utility model

For the drawbacks described above of prior art, technical problem to be solved in the utility model is：How effectively to be lifted and raised The range of voice of sound device, realize omnidirectional's sounding.

(2) technical scheme

In order to solve the above-mentioned technical problem, in one side of the present utility model, there is provided a kind of annular omnidirectional loudspeaker, bag Include vibrational system and magnetic circuit system；Wherein,

The vibrational system includes annular diaphragm and the voice coil loudspeaker voice coil being arranged on the annular diaphragm；

The magnetic circuit system includes the magnetic group that annular is set, and the magnetic group is interior on the inside of the vibrational system including being arranged on Magnetic group and/or the outer magnetic group being arranged on the outside of the vibrational system.

Alternatively, the magnetic circuit system also includes the magnetic conduction group that annular is set, and the magnetic conduction group includes being arranged on described raise Interior magnetic conduction group inside sound device and/or the outer magnetic conduction group being arranged on outside the loudspeaker.

Alternatively, the interior magnetic conduction group is correspondingly arranged with the interior magnetic group.

Alternatively, the annular diaphragm is cylindrical thin-film.

Alternatively, the cylindrical thin-film is integrally formed or surrounded by expansion plane for the flat film of rectangle.

Alternatively, the voice coil loudspeaker voice coil is with certain circuit layout, the magnetic field of the circuit layout and the magnetic circuit system Distribution is adapted.

Alternatively, the magnetic group is included in the multiple magnetic stripes being uniformly arranged in annular circumferential.

Alternatively, the multiple magnetic stripe is multiple discrete magnetic stripes and/or the cylindric magnetic sheet with multiple strip gabs.

Alternatively, the component for being reduced sound wave reflection interference is set on the magnetic stripe of the outer magnetic group.

Alternatively, the magnetic conduction group is included in the multiple magnetic conduction bars being uniformly arranged in annular circumferential.

Alternatively, the multiple magnetic conduction bar is multiple discrete magnetic conduction bars and/or the cylindrical shape with multiple strip gabs Magnetic conductive board.

Alternatively, the component for being reduced sound wave reflection interference is set on the magnetic conduction bar of the outer magnetic conduction group.

Alternatively, the component for reducing sound wave reflection interference has smooth curved-surface structure.

Alternatively, the magnetic stripe quantity of the outer magnetic group is not more than the magnetic stripe quantity of the interior magnetic group, the magnetic of the outer magnetic group Bar and the magnetic stripe of the interior magnetic group are correspondingly arranged.

Alternatively, the outer magnetic conduction group is netted magnetic conduction group.

Alternatively, the loudspeaker also includes upper junction plate and lower connecting plate, the upper junction plate and the lower connecting plate Respectively the vibrational system and/or the magnetic circuit system are clamped from top and the bottom.

Alternatively, the upper junction plate and the lower connecting plate are the annular slab with fluted and/or uniform detent projection, The groove and/or the detent projection are corresponding with the magnetic group and/or the magnetic conduction group.

Alternatively, the upper junction plate and the lower connecting plate are made of permeability magnetic material.

Alternatively, in addition to it is arranged on the noise-reducing structures of the inside loudspeakers.

Alternatively, in addition to it is arranged on the supporting constructions of the inside loudspeakers.

In another aspect of the present utility model, a kind of audio amplifier, including the annular omnidirectional described in any of the above-described are additionally provided Loudspeaker.

(3) beneficial effect

The annular omnidirectional loudspeaker and audio amplifier that the technical scheme of the utility model embodiment is provided, using the ring of cylindrical shape Shape vibrating diaphragm can in the range of 360 degree of annular uniform vibration sounding, it is achieved thereby that 360 degree comprehensive equal around loudspeaker The even effect for propagating sound, improve the range of voice of loudspeaker so that user optional position around loudspeaker can be experienced To equal audio, the free degree for listening to sound is substantially increased.

Brief description of the drawings

, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art Or the required accompanying drawing used is briefly described in description of the prior art, it should be apparent that, drawings in the following description are Some embodiments of the utility model, for those of ordinary skill in the art, on the premise of not paying creative work, Other accompanying drawings can also be obtained according to these accompanying drawings.

Figure 1A and Figure 1B is the cross-sectional view of annular omnidirectional loudspeaker in the utility model one embodiment；

Fig. 2 is the structural representation of magnetic group/magnetic conduction group of discrete list structure in the utility model one embodiment；

Fig. 3 A and Fig. 3 B are that the structure of magnetic group/magnetic conduction group of cylindric structure of grid in the utility model one embodiment is shown It is intended to；

Fig. 4 is the structural representation that plate is vertically connected with the utility model one embodiment；

Fig. 5 is the cross-sectional view of supporting construction in the utility model one embodiment.

Embodiment

To make the purpose of this utility model, content and advantage clearer, with reference to the accompanying drawings and examples, to this reality It is described in further detail with new embodiment.

Loudspeaker of the prior art is limited to the topology layout of magnetic/electric field, can only produce the effect on specific direction Power, therefore the direction of vibration of vibrating diaphragm is fixed, the sound sent has stronger directive property, can not meet the needs of omnidirectional listens to.At this In the embodiment of utility model, for the range of voice of effectively lifting loudspeaker, there is provided a kind of annular omnidirectional loudspeaker, pass through ring The uniform magnetic circuit and vibrating diaphragm of shape arrangement, realize 360 degree of annular omnidirectional's sounding.Specifically, in the utility model embodiment Scheme is as follows.

Embodiment one

In one embodiment of the present utility model, a kind of annular omnidirectional loudspeaker is disclosed, as shown in figure 1, the ring Shape omnidirectional loudspeaker includes：Vibrational system 1 and magnetic circuit system；Wherein,

The vibrational system 1 includes annular diaphragm and the voice coil loudspeaker voice coil being arranged on the annular diaphragm；

The magnetic circuit system includes the magnetic group that annular is set, and the magnetic group is arranged at least side of the vibrational system 1, Include being arranged on the interior magnetic group 21 of the inner side of vibrational system 1 and/or be arranged on the outer magnetic group in the outside of vibrational system 1 (not shown in figure 1).

In embodiment of the present utility model, the uniform magnetic field on ring surface is provided by the magnetic group of annular setting, from And cause annular diaphragm on 360 degree of circumferential direction can vibration sounding, effectively improve the range of voice of loudspeaker.

Wherein, Figure 1A and Figure 1B is two preferred embodiments of the utility model, its vibrational system 1 and magnetic circuit system 2 Essentially identical, the simply concrete form of section structural slightly difference is configured, embodiment hereinafter can be to magnetic circuit system, connection Part structure etc. elaborates, and merely with Figure 1A and Figure 1B, to show, pneumatic type omnidirectional raises one's voice in the utility model embodiment herein Several possible overall assembling effects of device, the minutia in this Figure 1A and Figure 1B are not construed as to the specific reality of the utility model Apply the limitation of mode.

Wherein, in one embodiment of the present utility model, the annular diaphragm is preferably cylindrical thin-film.Alternatively, The cylindrical thin-film is integrally formed or surrounded by expansion plane for the flat film of rectangle；Further, it is thin by rectangle plane When film surrounds, seam crossing is fixed by stickup or connection sheet.

Alternatively, the magnetic group and the annular of the vibrating diaphragm are donut, and the magnetic group be arranged in parallel with the vibrating diaphragm. In one embodiment of the present utility model shown in Fig. 1, the magnetic group is arranged on the inner side of the vibrating diaphragm；Certain Fig. 1 is only As an exemplary embodiment of the present utility model, relevant technical staff in the field is appreciated that magnetic group may also be arranged on The outside of vibrating diaphragm or it is arranged on simultaneously inside and outside vibrating diaphragm, the specific set-up mode of magnetic group is not construed as to the utility model The limitation of specific implementation.From effect, the set-up mode of both sides can obtain the magnetic flux of more saturation, can be sensitiveer more effective Ground drives diaphragm oscillations；And when being provided only on inner side, do not blocked in the direction of sound propagation of outside, more can guarantee that actual sound Effect, reality can select suitable magnetic group set-up mode when implementing according to the sounding request of loudspeaker；In addition, it is provided only on outside Although outer magnetic group can have to sound transmission it is certain block, it can also realize omnidirectional's sounding, therefore should not exclude which Outside specific embodiment of the present utility model.

Embodiment two

In one embodiment of the present utility model, the magnetic fabric that is uniformly arranged is into a kind of annular array form.To set Exemplified by the interior magnetic group on the inside of the vibrating diaphragm, further as shown in Fig. 2 the interior magnetic group 21 is included in annular circumferential uniformly sets The multiple magnetic stripes 211 put.By this way, the multiple magnetic stripes being uniformly arranged are collectively forming through the equal of the vibrational system Even magnetic field, loudspeaker make voice coil loudspeaker voice coil circuit produce the electromagnetic field of change at work, by applying the electric current of change into voice coil loudspeaker voice coil, Power is acted to voice coil loudspeaker voice coil under the electromagnetic field and magnetic group magnetic field interaction of change so that voice coil loudspeaker voice coil drives the vibrating diaphragm of its fitting together Of reciprocating vibration, the vibrating diaphragm vibrated with certain frequency has been issued by the sound wave with specific audio.

Wherein, in embodiment of the present utility model, voice coil loudspeaker voice coil carries certain circuit layout, and it can be bonded with vibrating diaphragm Film, such as thin film circuit or directly printed made of conductive film/spraying/print/be etched in diaphragm surface Circuit.Optionally, in addition, the circuit layout in voice coil loudspeaker voice coil (width of circuit, gap, winding displacement and turn around form etc.) and magnetic circuit system The Distribution of Magnetic Field of system is adapted.For example typically, the circuit layout of the voice coil loudspeaker voice coil causes the magnetic induction line of its caused electromagnetic field to hang down Magnetic induction line straight through the annular diaphragm, and/or with the magnetic group magnetic field at same position is parallel.Certainly, this area phase Close technical staff and be appreciated that the magnetic induction line in magnetic field is typically the different closed curve of a plurality of curvature, possible whole magnetic induction lines are equal The situation for meeting above-mentioned directivity requirement is difficult to reach, therefore magnetic induction intensity is typically only required in the utility model embodiment Magnetic induction line at larger region meets above-mentioned directivity requirement.The directivity requirement of above-mentioned magnetic induction line is not construed as to this The limitation of utility model specific embodiment.

Alternatively, voice coil loudspeaker voice coil circuit is made up of the one or more in metal, alloy and composite conducting material.Wherein, carry The voice coil loudspeaker voice coil of circuit is evenly arranged on the surface of vibrating diaphragm at least side, and it is the driving force uniform force that vibrating diaphragm provides, caused Sound is more natural, and manufacturing process is simplified, and yield improves, and cost reduces.

In embodiment of the present utility model, alternatively, the magnetic stripe in the magnetic group is suitable with the height of the vibrating diaphragm.Figure Magnetic stripe described in embodiment shown in 2 is cuboid, and the shape of the multiple magnetic stripe and/or structure are identical.But alternatively, The magnetic stripe can also use the bar magnet of arbitrary shape, for example, level cross-sectionn be rectangle, it is trapezoidal, circular, fan-shaped, any more The bar magnet of side shape or free closed curve.In principle, if the height of each magnetic stripe and the magnetic flux of offer quite and can It is uniformly arranged, the shape and/or structure of magnetic stripe are not construed as the limitation to the utility model embodiment.But generally In the case of, the magnetic stripe of unified standard is advantageous to industrial production and assembling, therefore the magnetic group in the utility model embodiment preferably uses Magnetic stripe combination shown in Fig. 2.

Alternatively, in embodiment of the present utility model according to the size of loudspeaker and/or to running parameter (such as tonequality, Volume, power, impedance etc.) demand, select a number of magnetic stripe to be combined into the magnetic group.For example the magnetic group includes 10 To 40 magnetic stripes；Or preferably, the magnetic group includes 20 to 30 magnetic stripes.

The interior magnetic group being arranged on the inside of annular diaphragm is show only in embodiment shown in Fig. 2, but in the utility model One embodiment in, magnetic circuit system may also include the outer magnetic group being arranged on the outside of annular diaphragm.Alternatively, the outer magnetic group Magnetic stripe is identical with the magnetic stripe quantity of the interior magnetic group and is correspondingly arranged.In another alternative embodiment, to reduce outer magnetic group to sound The influence that sound is propagated, the magnetic stripe quantity of the outer magnetic group are less than the interior magnetic group, or, it is provided with the magnetic stripe of the outer magnetic group The component of sound wave reflection interference is reduced, wherein, the component for reducing sound wave reflection interference generally has smooth curved-surface structure.

Embodiment three

In one embodiment of the present utility model, the magnetic circuit system also includes the magnetic conduction group that annular is set；It is described to lead Magnetic group includes the outer magnetic conduction group for being arranged on the interior magnetic conduction group of the inside loudspeakers and/or being arranged on outside the loudspeaker.

Alternatively, the magnetic conduction group, the magnetic group and the annular of the vibrating diaphragm are donut, the magnetic conduction group and institute State magnetic group to be correspondingly arranged, the magnetic conduction group is arranged on the side of the magnetic group away from the annular diaphragm.Such as when the magnetic group Including be arranged on the inside of annular diaphragm interior magnetic group when, the magnetic conduction group includes being arranged on interior magnetic conduction on the inside of the interior magnetic group Group；When the magnetic group includes being arranged on interior magnetic group and the outer magnetic group inside and outside annular diaphragm simultaneously, the magnetic conduction group includes It is arranged on the interior magnetic conduction group on the inside of the interior magnetic group and the outer magnetic conduction group being arranged on the outside of the outer magnetic group.

The setting of magnetic conduction group can prevent magnetic leakage, the magnetic flux of more saturation be obtained, so as to lift magnetic circuit system to vibrational system Driving force, improve loudspeaker sensitivity, sound parsing the performance such as power and tonequality.

In one embodiment of the present utility model, by taking the interior magnetic conduction group being arranged on the inside of interior magnetic group as an example, further such as Shown in Fig. 3, the interior magnetic conduction group 31 is the magnetic conduction cylinder with multiple strip gabs being uniformly arranged.Wherein, interior magnetic conduction in Fig. 3 The magnetic stripe 211 of interior magnetic group 21, which is correspondingly arranged, in grizzly bar 311 and Fig. 2 in the magnetic conduction cylinder of group (or can be expressed as interior magnetic conduction in Fig. 3 The magnetic stripe gap of interior magnetic group is correspondingly arranged in strip gab and Fig. 2 in the magnetic conduction cylinder of group).

Relevant technical staff in the field be appreciated that Fig. 2 and Fig. 3 be only in the technical solution of the utility model magnetic group and One exemplary embodiment of magnetic conduction group, in actual conditions, magnetic group and magnetic conduction group can use any feasible annular setting Mode.For example typically, magnetic conduction group can be made up of by the way of shown in Fig. 2 the magnetic conduction bar of discrete, or magnetic group can use Mode shown in Fig. 3 is made up of the magnetic sheet of cylindrical shape.Certainly, the cylinder shown in Fig. 3 A and its opening are not the implementation of unique feasible Mode, in other embodiment of the present utility model, cylinder also can (that is, magnetic group or magnetic conduction group be one complete without opening Cylindric sheet material), or opening (such as the lattice-shaped opening or as shown in Figure 3 B using arbitrary shape and/or length Directly cut off opening of cylinder side etc.).For example in figure ia, it is arranged on the interior magnetic conduction group on the inside of interior magnetic group and directly constitutes entirely The supporting construction of loudspeaker and be arranged on loudspeaker penetralia, its center be column and meanwhile by upper and lower two extended planars with Interior magnetic group absorption is bonded, and the section of the interior magnetic conduction group of the supporting construction is essentially I-shaped in Figure 1A.And then illustrated in Figure 1B Using the form of magnetic conduction group in discrete magnetic conduction bar composition.

Wherein, for the magnetic sheet of full wafer, the volume of the magnetic stripe of discrete is smaller, and the difficulty that magnetizes is low, the magnetic to magnetize Property it is evenly controllable, manufacturing process is simple, and yields is high；And permeability magnetic material, due to that need not magnetize, global formation is more beneficial for dropping Low assembly difficulty and lift structure intensity；Therefore, in embodiment of the present utility model, it is preferred to use the magnetic stripe of discrete is formed Magnetic group, magnetic conduction group formed using integrally formed magnetic conduction cylinder, the preparation difficulty and cost of product can be greatly reduced in which, real The now production of extensive mass, the popularization of pushing equipment.

In addition, when magnetic conduction group and/or magnetic group use non-strip structure, magnetic conduction group is no longer required for being correspondingly arranged with magnetic group. For example in one embodiment of the present utility model, no matter whether the magnetic circuit system includes outer magnetic group, can be in the magnetic circuit Outer magnetic conduction group is set in system.Alternatively, a kind of universal architecture of typical outer magnetic conduction group is netted magnetic conduction group；The netted magnetic conduction Group may be provided at the outside of loudspeaker, in addition to the effect of leakproof magnetic conduction is played, may also function as dust-proof, anti-foreign matter and enters and prevent from colliding with Deng the effect of protection internal structure body.Certainly, netted magnetic conduction group is only one kind in the utility model embodiment as protective cover Feasible mode, separately set independent proofing dust and protecting net and be equally applicable to embodiment of the present utility model, the specific setting of magnetic conduction group Mode is not construed as the limitation to the utility model embodiment.

In embodiment of the present utility model, magnetic conduction group can be selected metal, alloy, silicon, carbon, graphite, graphene, ceramics and One or more in composite are made；Preferably, the material of magnetic conduction group is iron.

Example IV

In one embodiment of the present utility model, the annular omnidirectional loudspeaker also includes assembling structure, such as Fig. 1 institutes Show, for by vibrational system and magnetic circuit system fixing assembling, the loudspeaker also includes upper junction plate 41 and lower connecting plate 42, described Upper junction plate 41 and the lower connecting plate 42 clamp the vibrational system and/or the magnetic circuit system from top and the bottom respectively, to protect The position and structure for demonstrate,proving each component consolidate.

Further as shown in figure 4, in one embodiment of the present utility model, the upper junction plate 41 and the lower connection Plate 42 is the annular slab with uniform detent projection 411, and the detent projection 411 is corresponding with the magnetic group shown in Fig. 2, every to cause Root magnetic stripe can be fixed just between two adjacent protrusions.In addition, for the magnetic conduction group shown in Fig. 3, the upper junction plate 41 and described Corresponding groove 412 is may also set up in the inner ring of lower connecting plate 42, to realize overall assembling.Optionally, in addition, on described Connecting plate and the lower connecting plate can be made of permeability magnetic material, i.e., described upper junction plate and the lower connecting plate can connect magnetic group With magnetic conduction group, and play a part of further leakproof magnetic conduction as magnetic conductive board up and down；The scheme substituted as another kind, also may be used Magnetic conductive board up and down is independently arranged being vertically connected with outside plate.

Certainly, relevant technical staff in the field is appreciated that due to the magnetic group and/or magnetic conduction in the utility model embodiment Group can use a variety of different implementation structures, therefore the structure of the upper junction plate and the lower connecting plate is also not limited to figure Mode shown in 4.Such as typically, when magnetic conduction group also using annular lay discrete magnetic conduction bar when, the upper junction plate and The lower connecting plate can also be fixed in the rigging position of magnetic conduction group using detent projection to coordinate.In addition, dentalation is except use Projection in vertical direction shown in Fig. 4 is outer (i.e. similar to the structure of fluted disc), can also use and be set in outer shroud and/or inner ring Detent projection in horizontal direction (i.e. similar to the structure of gear).Therefore the concrete structure for being vertically connected with plate is not construed as to this The limitation of utility model specific embodiment.

Embodiment five

Because the annular omnidirectional loudspeaker main purpose of the utility model embodiment is the exterior annular direction to loudspeaker Upper sounding, inside loudspeakers simultaneously do not need sound output, new in this practicality to avoid the sound transmission of inside from influenceing vibrating diaphragm sounding In one embodiment of type, as shown in figure 1, the loudspeaker also includes the noise-reducing structure 5 for being arranged on inside loudspeakers.Typical case Ground, in Fig. 1, the inside loudspeakers are filled with sound-absorbing material (typically such as absorb sound cotton), and the sound-absorbing material is generally Column structure, the inner space being filled substantially with the interior magnetic conduction group of the loudspeaker.Noise reduction in the utility model embodiment On the one hand structure can eliminate the sound transmissions of inside loudspeakers, support and tight on the other hand can be internally played to loudspeaker assembly Gu effect.Optionally, of course, also supporting construction can be set in the loudspeaker while noise-reducing structure is set, than As shown in Figure 1, columnar through holes are provided with the center of the sound absorption cotton of noise-reducing structure 5, the columnar through holes are used to raise one's voice described The center installation support column of device.

In an alternative embodiment of the present utility model, further as shown in figure 5, may be used also in the inside of the loudspeaker Integrated support structure 6 is set.Integrated support structure 6 in Fig. 5 includes being located at the support column 61 at center and is arranged at the support The upper and lower support plate 62,63 of post upper and lower ends, the noise-reducing structure is filled in the inner space of the supporting construction.

Alternatively, the supporting construction is merely provided for structural support function；But another is optional in the utility model In embodiment, the supporting construction can be used for the magnetic circuit system and/or vibrational system for connecting, assembling the loudspeaker simultaneously, also The upper and lower support plate of i.e. described supporting construction is vertically connected with plate as in Fig. 4 embodiments simultaneously, and magnetic conduction group, magnetic group etc. are filled Fit over the inside and/or edge of supporting construction.Specifically, the dress similar to being vertically connected with plate can be set on upper and lower support plate Distribution structure (such as detent projection and/or groove etc.)；Or will can also be vertically connected with the inner ring of plate and support column splicing and/ Or assembling.For example in Fig. 5, supporting construction 6 approaches assembling with interior magnetic conduction group 31 or interior magnetic group 21.

Furthermore it is preferred that the supporting construction can be made of permeability magnetic material, i.e., described supporting construction is used as magnetic circuit simultaneously Magnetic conduction group (interior magnetic conduction group and/or upper and lower magnetic conductive board etc.) in system.In the case, can be reduced in the magnetic circuit system or complete The slightly related magnetic conductive part of the whole province.Further, the supporting construction is alternatively arranged as the housing (work of the top and the bottom of the loudspeaker For another alternative, also upper-lower casing can be separately set outside the supporting construction).Such as in figure ia, the branch positioned at center Dagger 61 forms the interior magnetic conduction group 31 of loudspeaker with the upper and lower support plate 62,63 for being arranged at the support column upper and lower ends, uses The overall structure of the whole loudspeaker of which is compacter firmly.In addition, upper lower casing is also further provided with Figure 1A and Figure 1B Body cover plate protects intraware and fixed Air Filter.

Certainly, in embodiment of the present utility model, in addition to vibrational system and interior magnetic group are necessary component, such as outer magnetic Group, interior magnetic conduction group, outer magnetic conduction group, Air Filter, it is vertically connected with plate, upper and lower magnetic conductive board, noise-reducing structure, support column, upper and lower support plate It can be configured on demand with components such as upper-lower casings, the shape and structure of various components can meet matching requirements, here, each structure The combination of part and/or structure are not construed as the limitation to the utility model embodiment.

Embodiment six

In one embodiment of the present utility model, a kind of audio amplifier is also provided simultaneously, and the audio amplifier includes any as described above Annular omnidirectional loudspeaker described in embodiment.

Using the technical scheme of the utility model embodiment, cylindric annular diaphragm can be in the range of 360 degree of annular Uniform vibration sounding, it is achieved thereby that 360 degree of Omnibearing even propagates the effect of sound around loudspeaker, improve and raise one's voice The range of voice of device so that user optional position around loudspeaker can experience equal audio, substantially increase and listen to The free degree of sound.

In addition, in addition to it can realize omnidirectional's sounding of annular, due to very thin film can be used to form vibrational system In vibrating diaphragm and voice coil loudspeaker voice coil, simultaneously because magnetic circuit system can provide the magnetic field that saturation degree is high and is evenly distributed, the utility model is real The sound quality that loudspeaker in example can reach really fever level is applied, existing moving-coil speaker can be surmounted easily.Typically, such as The moving-coil speaker distortion factor is typically up to 2%-3%, and the loudspeaker distortions degree in the utility model embodiment is fallen below 0.1%-1%；Moving-coil speaker high frequency response is not comprehensive, is only capable of the frequency for reaching 15-35KHz, and the utility model embodiment Loudspeaker sounding frequency range can be improved to 5-50KHz；Moving-coil speaker is just opened when parsing power operating power more than more than 60% Begin to produce parsing power decline, sounding chaos is unclear, and load is more big more serious, and the loudspeaker of the utility model embodiment is whole It is higher than moving-coil speaker by more than 50% can be parsed with smooth working for power in the range of at full capacity.

Described above is only preferred embodiment of the present utility model, it is noted that for the common skill of the art For art personnel, on the premise of the utility model technical principle is not departed from, some improvement and deformation can also be made, these change Enter and deform and also should be regarded as the scope of protection of the utility model.

Claims (10)

1. a kind of annular omnidirectional loudspeaker, it is characterised in that including vibrational system and magnetic circuit system；Wherein,

The vibrational system includes annular diaphragm and the voice coil loudspeaker voice coil being arranged on the annular diaphragm；

The magnetic circuit system includes the magnetic group that annular is set, and the magnetic group includes being arranged on the interior magnetic group on the inside of the vibrational system And/or it is arranged on the outer magnetic group on the outside of the vibrational system.

2. annular omnidirectional loudspeaker according to claim 1, it is characterised in that the magnetic circuit system also includes annular and set Magnetic conduction group, the magnetic conduction group include be arranged on the inside loudspeakers interior magnetic conduction group and/or be arranged on outside the loudspeaker The outer magnetic conduction group in portion.

3. annular omnidirectional loudspeaker according to claim 1 or 2, it is characterised in that the annular diaphragm is cylindric thin Film.

4. annular omnidirectional loudspeaker according to claim 1 or 2, it is characterised in that the voice coil loudspeaker voice coil carries certain circuit Layout, the Distribution of Magnetic Field of the circuit layout and the magnetic circuit system are adapted.

5. annular omnidirectional loudspeaker according to claim 1 or 2, it is characterised in that the magnetic group is included in annular circumferential On multiple magnetic stripes for being uniformly arranged.

6. annular omnidirectional loudspeaker according to claim 5, it is characterised in that the multiple magnetic stripe is multiple discrete magnetic Bar and/or the cylindric magnetic sheet with multiple strip gabs.

7. annular omnidirectional loudspeaker according to claim 2, it is characterised in that the magnetic conduction group is included in annular circumferential The multiple magnetic conduction bars being uniformly arranged.

8. annular omnidirectional loudspeaker according to claim 7, it is characterised in that the multiple magnetic conduction bar is multiple discretes Magnetic conduction bar and/or the cylindric magnetic conductive board with multiple strip gabs.

9. annular omnidirectional loudspeaker according to claim 2, it is characterised in that the outer magnetic conduction group is netted magnetic conduction group.

10. a kind of audio amplifier, it is characterised in that including annular omnidirectional loudspeaker as claimed in any one of claims 1-9 wherein.