CN207053762U - Vibrating diaphragm and comprehensive sounding loudspeaker - Google Patents

Abstract

The utility model discloses a kind of vibrating diaphragm, including omnidirectional's sounding vibrating diaphragm body with cavity, rigidity of the vibrating diaphragm body using material is at least partially or fully more than using the rigidity of material covered with film layer, the film layer on the inwall and/or outer wall of the vibrating diaphragm body.Diaphagras caused by vibrating diaphragm sounding can effectively being suppressed, noise is significantly eliminated, and then improve tonequality.

Description

Vibrating diaphragm and comprehensive sounding loudspeaker

Technical field

The utility model belongs to speaker technology field, and in particular to a kind of vibrating diaphragm and comprehensive sounding loudspeaker.

Background technology

With the development and growth in the living standard of science and technology, people are to high-fidelity, Whole frequency band, 360 degree of omnidirectional's pronunciation equipments Propose higher demand.A kind of comprehensive sounding loudspeaker in the prior art be present, annular diaphragm is driven in axle by voice coil loudspeaker voice coil To vibration sounding, the sound travel that annular spreads can be formed.The program solves conventional loudspeakers sounding overlay area in the prior art The problem of dead angle be present, realize the technique effect of no 360 degree of omnidirectional's sounding in dead angle, allow the playback of sound and music in any position Put and angle is all closest to natural primary sound.

However, inventor has found during the utility model is realized, the loudspeaker voice coil driving sounding of the type Direction is vibrating diaphragm axial direction, and during driving, diaphagras easily occurs for its internal vibrating diaphragm, produces noise.Specifically, such The loudspeaker of type mainly includes voice coil loudspeaker voice coil, vibrating diaphragm and magnetic structure etc., and under the driving of voice coil loudspeaker voice coil, vibrating diaphragm is along its axial direction by compression stretching High speed reciprocating motion is carried out, but because airflow function, diaphragm surface can produce certain deformation in the normal direction perpendicular to axial direction, Lateral expansion is shown as, and then produces certain noise, and is spread to surrounding.Meanwhile utility model people also found, loudspeaker The material of middle vibrating diaphragm is very big on tonequality influence, especially when high-frequency signal drives, conventional diaphragm materials, such as paper, modeling Material, aluminium etc., tonequality can be caused not ideal enough.

The above- mentioned information disclosed in the background section, it is only used for strengthening the understanding to the utility model background, because This it can include not forming the information to prior art known to persons of ordinary skill in the art.

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 greatly to eliminate The diaphagras of vibrating diaphragm, reduce noise.

Other characteristics and advantage of the present utility model will be apparent from by following detailed description, or partially by this The practice of utility model and acquistion.

(2) technical scheme

In order to solve the above-mentioned technical problem, the utility model provides a kind of vibrating diaphragm, including omnidirectional's sounding with cavity shakes Membrane body, at least partially or fully adopted on the inwall and/or outer wall of the vibrating diaphragm body covered with film layer, the film layer The rigidity of material is more than the rigidity for the material that the vibrating diaphragm body uses.

Alternatively, the film that the vibrating diaphragm body is set for annular.

Alternatively, there is change in the cross-sectional diameter of the vibrating diaphragm body at least one direction.

Alternatively, the film layer is covered each by the vibrating diaphragm body using different materials, and along the vibrating diaphragm Body diameter flaring direction, the rigidity gradually increase of the different material.

Alternatively, it is gradually thickening along the vibrating diaphragm body diameter flaring direction, the film layer.

Alternatively, the material that the film layer uses for：Ceramics, graphene, titanium fiber, alloy or metal oxide.

Alternatively, the thickness of the film layer is between 0.1mm~0.3mm.

Alternatively, the film layer is covered in the inwall of the vibrating diaphragm body by the way of plating, coating or bonding And/or on outer wall.

Alternatively, the vibrating diaphragm body upper, middle and lower portion covering the film layer be respectively adopted ceramics, titanium fiber and Grapheme material.

Alternatively, only at the middle part of the vibrating diaphragm body covered with film layer.

Conceived based on above-mentioned utility model, the utility model also provides a kind of comprehensive sounding loudspeaker, including at least magnetic Line structure and voice coil loudspeaker voice coil, the loudspeaker also include the vibrating diaphragm described in any of the above-described.

Alternatively, the magnetic structure and the voice coil loudspeaker voice coil are arranged on the top and/or bottom of the vibrating diaphragm.

(3) beneficial effect

1st, vibrating diaphragm provided by the utility model, at least partially or fully covered with film layer on its vibrating diaphragm body, this is thin Film layer is more than rigidity of the vibrating diaphragm body using material using the rigidity of material, can effectively suppress segmentation caused by sounding and shake It is dynamic, noise is significantly eliminated, and then improve tonequality.

2nd, vibrating diaphragm provided by the utility model is along its axial direction and diameter flaring direction, the film layer material covered thereon Rigidity gradually increase or rigid material it is gradually thickening, it is advantageous to the suppression to diaphagras in vibrating diaphragm sounding, greatly Reduce noise.

It should be appreciated that the general description and following detailed description of the above are exemplary only, this can not be limited Utility model.

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.

Fig. 1 is the structural representation of vibrating diaphragm in the utility model；

Fig. 2 is the structural representation of comprehensive sounding loudspeaker in the utility model.

In figure, 1- vibrating diaphragm bodies；2- magnetic structures；3- voice coil loudspeaker voice coils；5- film layers.

Embodiment

It is below in conjunction with the accompanying drawings and specific real to make those skilled in the art more fully understand the technical solution of the utility model Mode is applied to be described in further detail the utility model.

In the prior art, axially transported under the driving of voice coil loudspeaker voice coil using the comprehensive sounding loudspeaker of annular diaphragm, its vibrating diaphragm It is dynamic, limited by material and technique, large stretch of vibrating diaphragm does not ensure that Uniform Movement, and can occur one at random in the normal direction Fixed deformation, this deformation occurred at random generates unmanageable noise, thus 360 degree of omnidirectional's sounding of prior art are raised one's voice The audio of device is difficult to ensure that.

In one embodiment of the present utility model, as shown in Figure 1, there is provided a kind of vibrating diaphragm, be mainly arranged at and raise In sound device, the vibrating diaphragm is in such as, but not limited to round table-like (i.e. frusto-conical), including omnidirectional's sounding vibrating diaphragm sheet with cavity Body 1, vibrating diaphragm body 1 are made of metal or biomaterial, and further, it is used along the preferable fine aluminium of malleability or spun silk system Into.It can at least partially or fully be used covered with film layer 5, its coverage mode on the inwall and/or outer wall of vibrating diaphragm body 1 Plating, coating, bonding, or other applicable patterns in the prior art, are not especially limited herein.The thickness of film layer 5 is preferred Between 0.1mm~0.3mm, the rigidity of its used material is more than material used by vibrating diaphragm body 1, be preferably ceramics, Graphene, titanium fiber or alloy etc..Vibrating diaphragm in the utility model is mainly using the set-up mode：The material of vibrating diaphragm body 1 Matter requires that greatly extending property is good, thus rigidity can be corresponding poor, and then vibrating diaphragm is moved reciprocatingly under the driving of voice coil loudspeaker voice coil 3 When, diaphagras easily occurs, in order to overcome the technological deficiency, the creative covering rigidity on vibrating diaphragm body 1 of the utility model Larger film layer 5, to suppress diaphagras, significantly eliminates noise.

In the preferred embodiment of the present utility model shown in Fig. 1, the vibrating diaphragm is round table-like for top and the bottom opening； In actual conditions, the vibrating diaphragm that other annulars in addition to round table-like are set is applied equally to the utility model.Such as typical case Ground, the vibrating diaphragm that the annular such as column, spherical, hemispherical, oval mesa-shaped (i.e. drum type) is set also can reach similar effect substantially；Or Person, it is round table-like relative to rotating to obtain around right angle waist by right-angled trapezium, after the oblique waist of right-angled trapezium is substituted for into arbitrary curve, Waist rotates to obtain around right angle curved surface is round table-like also to can reach similar effect substantially.Therefore, vibrating diaphragm (including vibrating diaphragm body and interior Portion's cavity etc.) shape be not construed as limitation to the utility model embodiment.

The adoptable material of the film layer being covered on vibrating diaphragm inner body wall and/or outer wall includes but is not limited to make pottery At least one of porcelain, graphene, titanium fiber, alloy and metal oxide etc., as long as the rigidity of material meets to require (to be more than and shake The rigidity of membrane body material), more specific limitation is not made to the specific material of film layer herein.Wherein, on ceramics, The manufactures of material such as graphene, titanium fiber, alloy or metal oxide and it is prepared into the scheme of film layer and belongs to prior art, It will not be repeated here.Typically, by taking metal oxide as an example, in a preferred embodiment of the present utility model, using to gold Belong to film layer of the aluminum oxide film formed after alumilite process on its surface as the metal oxide.In the utility model Embodiment in, multiple material simultaneously in use, form respective film layer respectively with every kind of material, rather than by multiple material Composition mixture prepares film layer later；When there are multiple film layers, the modes such as stacking or subregion can be used to set.Therefore, it is thin The specific material and form of film layer are not construed as the limitation to the utility model embodiment.

In addition, utility model people has found that vibrating diaphragm cross-sectional area is bigger, i.e., its cross section is straight for the vibrating diaphragm that annular is set Footpath is bigger, and more remote apart from vibrating diaphragm central shaft at vibration in other words, the free degree of diaphragm oscillations is bigger, thus caused diaphagras Stronger, noise also can be bigger therewith.Based on this phenomenon, in a preferred embodiment, for the unfixed annular of cross-sectional diameter Vibrating diaphragm (i.e. non-cylindrical vibrating diaphragm), film layer 5 is covered each by vibrating diaphragm body 1 using different materials in the utility model, And the rigidity of the different material gradually increases along the diameter flaring direction of vibrating diaphragm body 1.For example, vibrating diaphragm body 1 along its diameter gradually Expand the top, middle part and bottom that direction is respectively vibrating diaphragm body 1, then covered respectively on the table body of the top, middle part and bottom Lid ceramics, titanium fiber and grapheme material are as (the rigid magnitude relationship of film layer 5：Ceramics<Titanium fiber<Graphene).

In another preferred embodiment, in the utility model the thickness of film layer 5 along the diameter flaring direction of vibrating diaphragm body 1 Gradually thicken, i.e. so that vibrating diaphragm body 1 is relatively large in diameter part along its axial direction, the film layer 5 of covering is relatively thick.The setting side Formula, the bigger position of diaphragm diameter can be made, the rigid material covered thereon is relatively preferable or rigid material is thicker, is advantageous to Suppression to diaphagras, the effect for reducing noise are more excellent.

In embodiment of the present utility model, for above-mentioned non-cylindrical vibrating diaphragm, the side wall and horizontal plane of vibrating diaphragm body it Between angle be preferably 65 degree to 75 degree；Exemplified by round table-like, i.e. the trapezoidal base angle of round platform longitudinal profile be preferably 65 degree extremely 75 degree.

In a further preferred embodiment, can be only in the medium position cover layer 5 of vibrating diaphragm body 1 to save material, should Medium position can include medium position, the medium position of inwall or the medium position of inner and outer wall of vibrating diaphragm outer wall, enter One step, because the rigidity in the middle part of vibrating diaphragm is stronger, stabilization can be played, and then the adjacent region of non-cover layer 5 is existed It during generation diaphagras, can equally be inhibited, bring the effect for reducing noise, while material can be saved.

Conceived based on above-mentioned utility model, raised one's voice as shown in Fig. 2 the utility model may also provide a kind of comprehensive sounding Device, the loudspeaker comprise at least magnetic structure 2 and voice coil loudspeaker voice coil 3.Further, the preferred reality of the basic configuration of the loudspeaker and structure Mode such as Fig. 2 is applied, magnetic structure 2 and voice coil loudspeaker voice coil 3 are arranged in the top of round table-like vibrating diaphragm 1, because its magnetic structure 2 and voice coil loudspeaker voice coil 3 are not The focus of the utility model embodiment, by the way of prior art, it will not be repeated here.The utility model embodiment Compared with prior art, difference essentially consists in middle loudspeaker：Above-described embodiment is employed in loudspeaker of the present utility model In vibrating diaphragm.

Certainly, Fig. 2 is only that a kind of of the utility model preferred embodiment illustrates, in actual conditions, voice coil loudspeaker voice coil and magnetic circuit knot The position of structure is related (because voice coil loudspeaker voice coil needs to act in magnetic field), but the position relationship of voice coil loudspeaker voice coil and vibrating diaphragm not strong correlation, only needs both Mutually press close to/be bonded.Therefore, in the utility model other optional embodiments, the He of magnetic structure 2 shown in Fig. 2 Voice coil loudspeaker voice coil 3 also may be provided at other positions, for example be arranged on the bottom of vibrating diaphragm 1, middle part even inside, or multiple positions Combination；Preferably, for ease of installation/fixation of part, magnetic structure and voice coil loudspeaker voice coil are arranged on the top and/or bottom of vibrating diaphragm.Cause This, relevant technical staff in the field is appreciated that magnetic structure and voice coil structure and/or position are not construed as to the utility model The limitation of embodiment.

Embodiment of the present utility model provides a kind of vibrating diaphragm and comprehensive sounding loudspeaker, by vibrating diaphragm body overlying The film layer of lid suppresses diaphagras caused by vibrating diaphragm sounding so that vibrating diaphragm only produces effective hair through controlled vibration Sound, unnecessary noise is significantly eliminated, improve the tonequality of loudspeaker.

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 vibrating diaphragm, it is characterised in that including omnidirectional's sounding vibrating diaphragm body with cavity, in the inwall of the vibrating diaphragm body And/or the vibrating diaphragm sheet is at least partially or fully more than using the rigidity of material covered with film layer, the film layer on outer wall Body uses the rigidity of material.

2. vibrating diaphragm as claimed in claim 1, it is characterised in that the film that the vibrating diaphragm body is set for annular.

3. vibrating diaphragm as claimed in claim 2, it is characterised in that the cross-sectional diameter of the vibrating diaphragm body is at least one direction It is upper change to be present.

4. vibrating diaphragm as claimed in claim 3, it is characterised in that the film layer is covered each by described using different materials On vibrating diaphragm body, and gradually increase along the rigidity of the vibrating diaphragm body diameter flaring direction, the different material.

5. vibrating diaphragm as claimed in claim 3, it is characterised in that along the vibrating diaphragm body diameter flaring direction, the film layer It is gradually thickening.

6. vibrating diaphragm as claimed in claim 1, it is characterised in that the material that the film layer uses for：Ceramics, graphene, titanium Fiber, alloy or metal oxide.

7. vibrating diaphragm as claimed in claim 1, it is characterised in that the film layer is covered by the way of plating, coating or bonding It is placed on the inwall and/or outer wall of the vibrating diaphragm body.

8. vibrating diaphragm as claimed in claim 1, it is characterised in that at the middle part of the vibrating diaphragm body covered with film layer.

9. a kind of comprehensive sounding loudspeaker, including at least magnetic structure and voice coil loudspeaker voice coil, it is characterised in that the loudspeaker also includes Vibrating diaphragm as any one of claim 1 to 8.

10. comprehensive sounding loudspeaker as claimed in claim 9, it is characterised in that the magnetic structure and the voice coil loudspeaker voice coil are set Put in the top of the vibrating diaphragm and/or bottom.