CN206698420U - The vibrating diaphragm and sound-producing device of sound-producing device - Google Patents

Abstract

It the utility model is related to the vibrating diaphragm and sound-producing device of a kind of sound-producing device.Vibrating diaphragm described in the vibrating diaphragm of the sound-producing device has a ring portion, the rectangular ring-type in ring portion, has thickness difference between the different zones in the ring portion, and the ring portion is configured to the pliable asymmetry of vibration for making the vibrating diaphragm overall.The sound-producing device includes above-mentioned vibrating diaphragm and vibration component, and the vibration component is connected with the vibrating diaphragm, and the vibration component is configured to drive the diaphragm oscillations.A technical problem to be solved in the utility model is vibrating diaphragm polarization problem caused by the asymmetric operatic tunes in sound-producing device module.

Description

The vibrating diaphragm and sound-producing device of sound-producing device

Technical field

The utility model belongs to electroacoustic transduction technical field, specifically, the utility model is related to a kind of shaking for sound-producing device Film and sound-producing device.

Background technology

Sound-producing device is the Electroacooustic power conversion device commonly used in Modern consumer electronics product, for converting the electrical signal to sound Sound.Under the fast-developing technological trend of consumer electronics product, the performance of sound-producing device is also gradually developing, and adapts to electronics production The update of product.

Vibrating diaphragm in traditional sound-producing device is usually symmetrical expression design, and shape is based on rectangle, circle.Using rectangle vibrating diaphragm as Example, rectangle ring is generally made up of diaphragm materials in uniform thickness, this to be designed in the case where not considering cavity body structure Speaker system is set to reach whole machine balancing state.

But because the electronic products such as mobile phone, tablet personal computer constantly pursue lightening design so that the knot of sound-producing device Structure also increasingly complex and variation.So new sound-producing device module polygamy is equipped with baroque back cavity and ante-chamber.This Kind chamber structure shows certain asymmetry.In this case, the sound system of sound-producing device module itself is in non-right Title property, it is possible to cause vibrating diaphragm polarization phenomena occur.The polarization phenomena of vibrating diaphragm can make voice coil loudspeaker voice coil wiping occur to touch the system of magnetic circuit, loose wire etc. one Row problem, even if voice coil loudspeaker voice coil will not be damaged, problem is touched in wiping can also produce noise, reduce the acoustical behavior of sound-producing device, make its reliable Property reduce.

In order to solve the above technical problems, the mode of those skilled in the art's generally use has：In back cavity, acoustical cotton is set；Or Person, add on vibrating diaphragm and apply damping glue etc..But the improvement of these modes is limited.It is therefore necessary to the sound system to sound-producing device Or parts are improved, improve due to vibrating diaphragm polarization problem caused by the asymmetry of the operatic tunes.

Utility model content

A purpose of the present utility model is to provide a kind of vibrating diaphragm of improved sound-producing device.

According to one side of the present utility model, there is provided a kind of vibrating diaphragm of sound-producing device, the vibrating diaphragm have ring portion, The rectangular ring-type in ring portion, there is thickness difference between the different zones in the ring portion, the ring portion is configured to make institute State the overall pliable asymmetry of vibration of vibrating diaphragm.

Alternatively, the ring portion includes two sections of long axles, two sections of short axles and four sections of corners, two sections of major axis position phases Right, two sections of minor axis locations are relative, and the corner is configured to one end of the major axis being connected with one end of the short axle.

Alternatively, there is thickness difference between two sections of short axles.

Alternatively, one section of major axis and the consistency of thickness of one section of short axle, also, with other areas in the ring portion There is thickness difference between domain.

Alternatively, being between two sections of corners of diagonal position has thickness difference.

Alternatively, there is thickness difference between the corner at the both ends of one section of short axle.

Alternatively, the periphery in the ring portion has fixed part, and the inner side in the ring portion has central part, the fixation There is thickness difference between the different zones in portion, there is thickness difference between the different zones of the central part.

Alternatively, the ring portion has standard regions, thickened area and thinning area, and the thickness of the thickened area is more than the mark The thickness in quasi- area, the thickness of the thinning area are less than the thickness of the standard regions.

Alternatively, for the thickness of the thickened area less than or equal to three times of the thickness of standard regions, the thickness of the thinning area is big In 1/3rd of the thickness equal to standard regions.

The utility model additionally provides a kind of sound-producing device, including above-mentioned vibrating diaphragm and vibration component, the vibration component with The vibrating diaphragm connection, the vibration component are configured to drive the diaphragm oscillations.

One of the present utility model has technical effect that, the pliable asymmetry of vibration of membrane of shaking.This vibrating diaphragm can fit The asymmetric sound-producing device module of chamber structure is answered, avoids polarization problem.

It is of the present utility model other by referring to the drawings to the detailed description of exemplary embodiment of the present utility model Feature and its advantage will be made apparent from.

Brief description of the drawings

The accompanying drawing of a part for constitution instruction describes embodiment of the present utility model, and uses together with the description In explanation principle of the present utility model.

Fig. 1 is the top view of the vibrating diaphragm of sound-producing device in a kind of embodiment of the utility model；

Fig. 2 is sectional views of the Fig. 1 along Section A-A；

Fig. 3 is the top view of the vibrating diaphragm of sound-producing device in the utility model another kind embodiment.

Embodiment

Various exemplary embodiments of the present utility model are described in detail now with reference to accompanying drawing.It should be noted that：It is unless another Illustrate outside, the part and the positioned opposite of step, numerical expression and numerical value otherwise illustrated in these embodiments is unlimited The scope of the utility model processed.

The description only actually at least one exemplary embodiment is illustrative to be never used as to this practicality below New and its application or any restrictions used.

It may be not discussed in detail for technology and equipment known to person of ordinary skill in the relevant, but in appropriate situation Under, the technology and equipment should be considered as part for specification.

In shown here and discussion all examples, any occurrence should be construed as merely exemplary, without It is as limitation.Therefore, other examples of exemplary embodiment can have different values.

It should be noted that：Similar label and letter represents similar terms in following accompanying drawing, therefore, once a certain Xiang Yi It is defined, then it need not be further discussed in subsequent accompanying drawing in individual accompanying drawing.

The utility model provides a kind of vibrating diaphragm of sound-producing device, and the vibrating diaphragm has ring portion, and the ring portion is in square Shape cyclic structure.When vibrating diaphragm vibrates, ring portion produces elastic deformation, and support is shaken vibration of membrane, and provide return to it is flat The return action power of weighing apparatus position.Especially, the thickness of the different zones in the ring portion is different, between the different zones made With thickness difference.The different region of the thickness in ring portion, the active force required for elastic deformation is also different, and this of ring portion is set Meter make the overall vibration of the vibrating diaphragm it is pliable be it is asymmetric, the rigidity in ring portion is also asymmetric.Correspondingly, the operatic tunes is coordinated The asymmetric sound-producing device module of structure, can make sound-producing device system reach the state of vibration balancing again.Avoid vibrating diaphragm work The problem of being polarized when making.

It is empty caused by the region of the rear operatic tunes of sound-producing device module on the left of the vibrating diaphragm for example, by taking the vibrating diaphragm shown in Fig. 1 as an example Atmospheric pressure is larger, and air pressure caused by the region on the right side of the vibrating diaphragm is smaller.When this acoustical cavity can cause diaphragm oscillations There is asymmetric phenomenon in the amplitude and frequency of left and right sides vibration.In vibrating diaphragm provided by the utility model, the left side in ring portion 1 The thickness of side can thicken, and the thickness on the right side in ring portion 1 is then thinned.So, when sound-producing device module works, ring portion The asymmetric phenomenon of the air pressure of the operatic tunes after thickness difference can balance, so that vibrating diaphragm returns to the state of balance vibration.Further Ground, the polarization of the voice coil loudspeaker voice coil of sound-producing device can also be eliminated, wipe the problems such as touching, improve the acoustical behavior of sound-producing device.Avoid Voice coil loudspeaker voice coil is because wipe the problems such as touching short-term, loose wire caused by possibility.

In a kind of embodiment of the present utility model, as shown in figure 1, the ring portion 1 include two sections long axle 11, Two sections of short axles 12 and four sections of corners 13.Two sections of positions of major axis 11 are relative, and the position of two sections of short axles 12 is relative.It is described Corner 13 is configured to link together one end of the major axis 11 and one end of the short axle 12.Four sections of corners 13 are by institute State major axis 11 and short axle 12 is sequentially connected circlewise.The major axis 11, short axle 12 and the thickness in corner 13 can be according to actual suitable The acoustical cavity for the sound-producing device module matched somebody with somebody is adjusted, so that the overall vibration in sound-producing device module of vibrating diaphragm can reach Poised state, weaken the dissymmetrical structure of the operatic tunes polarization problem to caused by vibrating diaphragm.The utility model is not to each major axis, short axle Concrete restriction is carried out with the thickness in corner, the thickness of each several part can be differed, it is possibility to have it is a part of identical, depending on actual suitable Depending on the sound-producing device module matched somebody with somebody.

Alternatively, as shown in Figure 2, it is necessary to be adjusted to the vibration balancing at left and right sides of vibrating diaphragm, then two sections can be made The thickness of the short axle 12 is different, has thickness difference between two sections of short axles 12.So, pliable vibration at left and right sides of vibrating diaphragm is not Symmetrically.This vibrating diaphragm is fitted into the left-right asymmetry sound-producing device module of the operatic tunes, makes asymmetric vibration is pliable can be with Pressure caused by the asymmetric operatic tunes offsets, so that shaking of being integrally balanced in sound-producing device module of vibrating diaphragm It is dynamic, avoid polarizing.

Alternatively, in another embodiment, one section of major axis and the thickness of one section of short axle can be consistent 's.Also, other regions in the ring portion are different from the thickness of the major axis and short axle, make the major axis and short axle and ring portion its There is thickness difference between its region.As shown in figure 1, can be the major axis 11 positioned at downside and the thickness phase of short axle 12 positioned at left side Together, there is thickness difference in other regions with ring portion.This embodiment is applied to the operatic tunes of sound-producing device module in vibrating diaphragm One cornerwise both sides produces the situation of obvious uneven air pressure.

It is another to be alternatively in that the thickness in two sections of corners of the diagonal position of vibrating diaphragm is different, the corner of diagonal position it Between there is thickness difference.This thickness change mode of vibrating diaphragm, two of vibrating diaphragm can be made diagonally to have, and unbalanced vibration is pliable, Or the both sides of vibrating diaphragm can be made to have unbalanced vibration pliable.For example, as shown in figure 1, can be positioned at the upper left of vibrating diaphragm There is thickness difference between two corners 13 of bottom right.On the one hand, the corner is located at the corner angle position of vibrating diaphragm, be suitable for The cornerwise operatic tunes energy imbalance to disappear along vibrating diaphragm.On the other hand, the length in the corner is relatively short, can play to shaking Dynamic pliable fine setting effect.

Alternatively, the thickness positioned at the corner at the both ends of one section of short axle can be different, between two corners for another kind With thickness difference.This thickness change mode, can make two adjacent corner angle positions of vibrating diaphragm have unbalanced vibration suitable Property, can be in the situation of the unbalanced acoustic pressure of adjacent ribs Angle Position generation of vibrating diaphragm suitable for the regulation operatic tunes.For example, as shown in figure 1, There is thickness difference between two corners 13 up and down that can be left side short axle 12.

Above the utility model illustrates the different embodiment of thickness in several ring portions, but the utility model is not Limitation can only be by the way of above-mentioned several thickness changes.In other embodiments, can also make to have between other regions There is thickness difference, or, have the areas combine mode of thickness difference different.

In addition, as shown in figure 3, the vibrating diaphragm distinguished for ring portion 1 without obvious major axis and short axle, and for this reality With new thickness change mode.For example, in figure 3, ring portion 1 be located at left side region can with positioned at the region on right side it Between can have thickness difference.

As shown in figure 3, in the vibrating diaphragm, the periphery in the ring portion 1 can also have fixed part 2, the ring portion 1 Inner side can then have central part 3.The fixed part 2 can be used for vibrating diaphragm being fixed on sound-producing device, the central part 3 On can be provided with composite bed, to improve the rigidity of vibrating diaphragm.Especially, the side for the change vibrating diaphragm thickness that the utility model uses Formula, it is also applied for the fixed part 2 and central part 3.There can be thickness difference between the different zones of the fixed part 2, it is described There can also be thickness difference between the different zones of central part 3.Fixed part 2 and central part 3 can coordinate the thickness in ring portion to become Change, the pliable balance of the vibration overall to vibrating diaphragm is adjusted.

Alternatively, the ring portion can have standard regions, thickened area and thinning area.The thickness of the standard regions is vibrating diaphragm Standard thickness, generally according to actual product performance requirement, preset the standard thickness value of vibrating diaphragm.The thickness of the thickened area More than the thickness of the standard regions, thickened area it is more rigid.The thickness of the thinning area is less than the thickness of the standard regions, subtracts The rigidity in thin area is weaker.Can be that one section of short axle is for example, between above-mentioned two sections of short axles in the embodiment with thickness difference Thinning area, another section of short axle are thickened area；Or or one section of short axle be standard regions, another section of short axle be thinning area or Thickened area.

Preferably, for the thickness of the thickened area no more than three times of the thickness of standard regions, the thickness of the thinning area is most thin Not less than 1/3rd of the thickness of standard regions.It in above-mentioned thickness range, on the one hand can ensure the rigidity of thinning area, make to shake Film will not integrally produce excessive deformation or distortion problem；On the other hand, the rigidity of thickened area can be avoided excessive, avoids vibrating diaphragm Acoustics be affected.

The utility model additionally provides a kind of sound-producing device, and the sound-producing device includes above-mentioned vibrating diaphragm and vibration component, institute Vibration component is stated to be connected with the vibrating diaphragm.The vibration component is configured to drive the diaphragm oscillations, so as to send sound.Shake Dynamic component can include voice coil loudspeaker voice coil, be vibrated under the voice coil loudspeaker voice coil ability electromagnetic action, and drive the diaphragm oscillations.This sounding dress Put the sound-producing device module that there is dissymmetrical structure suitable for the operatic tunes.According to the dissymmetrical structure of the operatic tunes, the thickness of vibrating diaphragm is designed Region of variation, this sound-producing device is fitted into sound-producing device module afterwards.When sound-producing device works, vibration is pliable asymmetric Vibrating diaphragm can balance unbalanced air pressure in the operatic tunes, so as to reach the effect of balance vibration.Avoid the occurrence of polarization problem.

Although some specific embodiments of the present utility model are described in detail by example, this area It is to be understood by the skilled artisans that above example merely to illustrate, rather than in order to limit the scope of the utility model.This Field it is to be understood by the skilled artisans that can not depart from the scope of the utility model and spirit in the case of, to above example Modify.The scope of the utility model is defined by the following claims.

Claims (10)

1. a kind of vibrating diaphragm of sound-producing device, it is characterised in that the vibrating diaphragm has a ring portion (1), and the ring portion (1) is rectangular Ring-type, has thickness difference between the different zones of the ring portion (1), and the ring portion (1) is configured to make the vibrating diaphragm overall The pliable asymmetry of vibration.

2. the vibrating diaphragm of sound-producing device according to claim 1, it is characterised in that the ring portion includes two sections of long axles (11), two sections of short axles (12) and four sections of corners (13), two sections of major axis (11) positions are relative, two sections of short axle (12) positions Put relatively, the corner (13) is configured to one end of the major axis (11) being connected with one end of the short axle (12).

3. the vibrating diaphragm of sound-producing device according to claim 2, it is characterised in that there is thickness between two sections of short axles (12) Degree is poor.

4. the vibrating diaphragm of sound-producing device according to claim 2, it is characterised in that described in one section of major axis (11) and one section The consistency of thickness of short axle (12), also, there is thickness difference between other regions of the ring portion (1).

5. the vibrating diaphragm of sound-producing device according to claim 2, it is characterised in that be in two sections of corners (13) of diagonal position Between there is thickness difference.

6. the vibrating diaphragm of sound-producing device according to claim 2, it is characterised in that positioned at the both ends of one section of short axle (12) Corner (13) between there is thickness difference.

7. the vibrating diaphragm of sound-producing device according to claim 1, it is characterised in that the periphery of the ring portion (1) has solid Determine portion (2), the inner side of the ring portion (1) has central part (3), has thickness between the different zones of the fixed part (2) Difference, there is thickness difference between the different zones of the central part (3).

8. the vibrating diaphragm of the sound-producing device according to claim 1-7 is one of any, it is characterised in that ring portion (1) tool There are standard regions, thickened area and thinning area, the thickness of the thickened area is more than the thickness of the standard regions, the thickness of the thinning area Less than the thickness of the standard regions.

9. the vibrating diaphragm of sound-producing device according to claim 8, it is characterised in that the thickness of the thickened area is less than or equal to mark Three times of the thickness in quasi- area, the thickness of the thinning area are more than or equal to 1/3rd of the thickness of standard regions.

A kind of 10. sound-producing device, it is characterised in that including claim 1-9 it is one of any described in vibrating diaphragm and vibration component, The vibration component is connected with the vibrating diaphragm, and the vibration component is configured to drive the diaphragm oscillations.