CN208609174U - A kind of vibrating diaphragm and Microspeaker - Google Patents

A kind of vibrating diaphragm and Microspeaker Download PDF

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Publication number
CN208609174U
CN208609174U CN201821408001.XU CN201821408001U CN208609174U CN 208609174 U CN208609174 U CN 208609174U CN 201821408001 U CN201821408001 U CN 201821408001U CN 208609174 U CN208609174 U CN 208609174U
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vibrating diaphragm
straight line
lines
ring portion
line portion
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CN201821408001.XU
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Chinese (zh)
Inventor
李栋
李军
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Goertek Techology Co Ltd
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Goertek Techology Co Ltd
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Abstract

The utility model relates to a kind of vibrating diaphragm and Microspeakers.The vibrating diaphragm includes: ring portion, the ring portion is in that the track type structure surrounded is successively spaced by corner and straight line portion, decorative pattern is distributed in four corner, rough lines is distributed on the straight line portion, length direction of the lines along the straight line portion extends to the position of the neighbour decorative pattern, also, the lines extends to the edge in the ring portion along the width direction of the straight line portion, is symmetricly set on the straight line portion.Novel one of this reality has the technical effect that the structural strength for improving vibrating diaphragm ring portion, so that vibration is more steady.

Description

A kind of vibrating diaphragm and Microspeaker
Technical field
The utility model relates to electroacoustic techniques fields, more specifically, the utility model relates to a kind of vibrating diaphragm and miniature raising Sound device.
Background technique
Microspeaker is the important acoustic element of portable electronic device, is converted for realizing electric signal and acoustical signal Device, be usually used in the electronic equipments such as mobile phone, computer.Microspeaker is usually by vibrational system, magnetic circuit system and support System is constituted;Vibrational system includes top dome portion, vibrating diaphragm and voice coil.Wherein, the design of vibrating diaphragm is to determine Microspeaker performance An important factor for.
Vibrating diaphragm is made of central part, ring portion and fixed part.Requirement with Microspeaker to acoustical behavior is more next Higher, it is also increasingly severeer that vibrating diaphragm designs the problem of facing.In existing design, the decorative pattern in vibrating diaphragm ring portion is usually of a straight line type, Decorative pattern has the one side edge in ring portion to extend to another side edge, and the vibrating diaphragm of this structure is in vibration with certain defect.
On the one hand, vibrating diaphragm will appear rocking vibration when big displacement is vibrated, and vibration is unstable, tend to have noise appearance, vibrating diaphragm It is pliable lower, cause the sensitivity of Microspeaker lower, acoustical behavior is poor.On the other hand, Microspeaker is when falling, folding Ring is also easy to produce stress without knurling section and concentrates, so that vibrating diaphragm ring portion is more than fatigue limit, not easily passs through reliability test.
Therefore, it is necessary to be improved regarding to the issue above to the design of Microspeaker vibrating diaphragm decorative pattern, preferably to drop Low harmonics distortion improves the reliability and sound quality of Microspeaker.
Utility model content
One purpose of the utility model is to provide a kind of vibrating diaphragm for Microspeaker.
One aspect according to the present utility model provides a kind of vibrating diaphragm, which includes: ring portion, and the ring portion is in It is successively spaced the track type structure surrounded by corner and straight line portion, decorative pattern, the straight line are distributed in four corner Rough lines is distributed in portion, length direction of the lines along the straight line portion extends to the position of the neighbour decorative pattern It sets, also, the lines extends to the edge in the ring portion along the width direction of the straight line portion, is symmetricly set on described On straight line portion.
Optionally, the lines is made of the reinforcing rib of several protrusions.
Optionally, the reinforcing rib includes waling and/or cross reinforcing.
Optionally, the reinforcing rib can along the ring portion surface it is raised inwardly or raised outward.
Optionally, the decorative pattern and the same side or not ipsilateral protrusion of the lines to the ring portion.
Optionally, the reinforcing rib includes waling and cross reinforcing, if several described walings and Dry a cross reinforcing unequal spacing is distributed on the straight line portion;
Alternatively, several described walings and several described cross reinforcings are distributed at equal intervals the straight line In portion.
Optionally, the height of the lines is less than or equal to the height of the decorative pattern.
Optionally, the waling is different with the height of the cross reinforcing.
Optionally, the extending direction of the waling and cross reinforcing is in predetermined angle, the waling It is arranged in the ring portion with cross reinforcing.
Another aspect according to the present utility model provides a kind of Microspeaker, which includes: miniature loudspeaking Device ontology and above-mentioned vibrating diaphragm, the vibrating diaphragm are arranged in the Microspeaker ontology.
One of the utility model has technical effect that, the structural strength in vibrating diaphragm ring portion can be improved, so that vibration is more Steadily, higher hamonic wave distortion is reduced, the acoustical behavior of Microspeaker is improved.
By the detailed description referring to the drawings to the exemplary embodiment of the utility model, the utility model it is other Feature and its advantage will become apparent.
Detailed description of the invention
The attached drawing for constituting part of specification describes the embodiments of the present invention, and uses together with the description In explanation the principles of the present invention.
Fig. 1 is the top view for the vibrating diaphragm that specific embodiment of the present invention provides;
Fig. 2 is the structural schematic diagram for the vibrating diaphragm that specific embodiment of the present invention provides;
Fig. 3 is the partial enlarged view of Fig. 1.
Specific embodiment
The various exemplary embodiments of the utility model are described in detail now with reference to attached drawing.It should also be noted that unless another It illustrates outside, the component 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.
Be to the description only actually of at least one exemplary embodiment below it is illustrative, never as to this is practical Novel and its application or any restrictions used.
Technology and equipment known to person of ordinary skill in the relevant may be not discussed in detail, but in appropriate situation Under, the technology and equipment should be considered as part of specification.
It is shown here and discuss all examples in, any occurrence should be construed as merely illustratively, without It is as limitation.Therefore, other examples of exemplary embodiment can have different values.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi It is defined in a attached drawing, then in subsequent attached drawing does not need that it is further discussed.
The utility model provides a kind of vibrating diaphragm for Microspeaker.Fig. 1 shows the top view of the vibrating diaphragm, Fig. 2 and Fig. 3 shows the improvement structure of the vibrating diaphragm in the form of structural schematic diagram and partial enlarged view.It is right now by taking Fig. 1 to Fig. 3 as an example Structure, principle of the vibrating diaphragm of the utility model etc. are described in detail.
The utility model provides a kind of vibrating diaphragm for Microspeaker, which includes ring portion;Or it is also possible to Sequentially connected central part, ring portion and fixed part are constituted from inside to outside.For example, vibrating diaphragm can be the rectangle with fillet Structure is also possible to have square structure of fillet etc., the application to the specific structure of vibrating diaphragm without limitation.
As shown in Figure 1, the vibrating diaphragm includes sequentially connected center from inside to outside present embodiment illustrates a kind of diaphragm structure Portion 1, ring portion 2 and fixed part 3.Central part 1 is usually the structure of rigidity, to guarantee the high frequency characteristics of Microspeaker, folding Ring portion 2 is the arcuate structure of the recess being made of flexible material or protrusion, to guarantee that vibrating diaphragm can be vibrated up and down freely.
In vibrating diaphragm provided in this embodiment, the ring portion is in successively to be spaced the track type surrounded by corner and straight line portion Structure, corner and straight line portion are integrally formed, and constitute the main body in the ring portion.Wherein, it is distributed in four corner Have decorative pattern 21, the decorative pattern 21 in corner two neighboring straight line portion angular position, and respectively to straight line portion part extend.This In embodiment, decorative pattern 21 is the surface that ring portion 2 is arranged in, and can be the structure of protrusion or recess.
Further, rough lines 22 is distributed on the straight line portion, the lines 22 is along the straight line portion Length direction extends to the position of the neighbour decorative pattern 21, also, the lines 22 prolongs along the width direction of the straight line portion Reach the edge in the ring portion 2.It is understood that lines 22 is arranged in ring portion, by the ring portion of arcuate structure Highest point extend respectively to two edges.
The present embodiment to specific structure, shape of lines etc. without limitation.For example, it may be decorative pattern in a strip shape, it can also To be multiple rows of decorative pattern such as curvilinear, fold-line-shaped, waveform, it is arranged successively, is distributed on the straight line portion in ring portion.Wherein, institute The decorative pattern near lines is stated, is symmetricly set on the straight line portion.
In addition, lines 22 can contact setting with the decorative pattern 21 in corner, it is also possible to lines 22 and is separated by with decorative pattern 21 A certain distance setting.In addition, it will be appreciated by those skilled in the art that, the symmetrically arranged lines 22 on straight line portion, no matter It is to be located on longer straight line portion, or on shorter straight line portion, lines 22 all should be along the middle line axial symmetry of straight line portion point Cloth.Symmetrically arranged lines ensure that the pliable and stress in ring portion is uniformly distributed, avoid in vibrating diaphragm ring portion it is pliable and The problem of polarization that stress causes in mal-distribution.
Vibrating diaphragm provided in this embodiment for Microspeaker, it is concave-convex by being arranged on the straight line portion in vibrating diaphragm ring portion Injustice extends, the lines of the neighbour decorative pattern to straight line portion width direction, can effectively improve the structural strength in vibrating diaphragm ring portion, So that vibration is more steady, higher hamonic wave distortion is reduced, the acoustical behavior of Microspeaker is improved.Improved vibrating diaphragm is being rolled over Ring portion stress distribution is more uniform, is not likely to produce that fold, anti-fatigue ability are strong, and reliability surplus is big.
Optionally, the lines is made of the reinforcing rib of several protrusions.For example, reinforcing rib can be it is in a strip shape, can also To be curvilinear, fold-line-shaped, waveform etc..The present embodiment to the specific form of reinforcing rib without limitation.
Specifically, the reinforcing rib includes waling 221 and/or cross reinforcing 222.Several walings 221 and/or cross reinforcing 222 be staggered on the straight line portion.As shown in Figures 2 and 3, it is arranged in lines 22 a plurality of Reinforcing rib, including waling 221 and cross reinforcing 222.It is understood that waling 221 and laterally reinforcement Muscle 222 is the direction in order to distinguish reinforced bag sand well in lines 22, and distinguished.In practical applications, for reinforcing rib The specific design such as direction, angle, the bending degree of distribution and with no restrictions, can select as needed.
As Fig. 1 and Fig. 3 show a kind of optional embodiment of lines, a plurality of waling 221 and laterally reinforcement Muscle 222 is successively interspersed on the straight line portion on 2 surface of ring portion.It is of course also possible to only select waling 221 or lateral The surface in ring portion 2 is arranged in one of reinforcing rib 222.
The reinforcing rib being distributed on straight line portion can be incremented by both ends along the axis of straight line portion, be alternately arranged.But it needs to infuse Meaning, each reinforcing rib require completely to be arranged in the circumferential direction in ring portion along ring portion arcuate structure.In this way, one Aspect, the lines of formation can widen the pliable range of linearity of vibrating diaphragm;On the other hand, lines can be to avoid vibrating diaphragm in vibration processes In, ring portion generates fold, is conducive to inhibit polarization, improves the acoustical behavior of vibrating diaphragm.
Optionally, the reinforcing rib can along the ring portion surface it is raised inwardly or raised outward.It needs Illustrate, ring portion is usually arcuate structure, and the side where the arcuate structure outwardly convex is outside, on the other side Side, as inside.
As shown in Figures 2 and 3, several walings 221 on lines 22 and cross reinforcing 222 are along ring Portion surface protrusion outward and/or surface protrusion (can be understood as being recessed) inwardly along ring portion.
For example, waling can be protrusion, cross reinforcing is recess;Alternatively, waling and transverse direction Reinforcing rib be alternately in it is raised or sunken, the surface in ring portion is set, concave-convex irregular lines is formed.When Microspeaker exists When work when rocking vibration, this irregular lines helps to reduce noise, reduces the problem of higher hamonic wave is distorted.
Since Microspeaker is when falling, it is also easy to produce problem of stress concentration on the straight line portion in vibrating diaphragm ring portion, causes to shake Film ring portion is more than fatigue limit, not easily passs through reliability test.In the present embodiment, can by several described walings and Several cross reinforcing unequal spacings are distributed on right-angle side.In this way, size can be formed on the surface in ring portion Different multiple grids, when Microspeaker falls, the multiple grids being distributed thereon can effectively reduce the appearance of stress concentration, It hinders ring portion the problems such as buckling deformation occur, guarantees the acoustical behavior of vibrating diaphragm.
In addition, can also be several institutes as shown in figure 3, the reinforcing rib includes waling and cross reinforcing It states waling 221 and several described cross reinforcings 222 is distributed at equal intervals on the straight line portion, to form grid The lines 22 of shape.The spacing that the present embodiment is distributed waling and cross reinforcing without limitation, those skilled in the art It can select as needed.
Further, the decorative pattern and the same side or not ipsilateral protrusion of the lines to the ring portion.The present embodiment In, decorative pattern is arranged in the corner in ring portion, be can choose raised or sunken decorative pattern and is arranged on the surface in ring portion. Certainly, for the transverse reinforcing tendons and longitudinal reinforcing tendons in lines, it also can choose the texture structure of different shape.
For example, the decorative pattern of protrusion is arranged in the corner in ring portion, meanwhile, the lines of protrusion is arranged in ring portion On the surface of straight line portion.In this way, decorative pattern is located at the ipsilateral of folding collar surface with lines simultaneously.Alternatively, the decorative pattern of protrusion is arranged In the corner in ring portion, meanwhile, the lines of recess is arranged on the surface of ring portion straight line portion.In this way, decorative pattern and line Road is located at the heteropleural of folding collar surface simultaneously.Above-mentioned only two kinds of optional embodiments, but not limited to this, those skilled in the art Member can be as needed, and the texture structure of different shape is arranged, and to cooperate the better vibrating diaphragm of decorative pattern acquisition pliable, promotes miniature loudspeaking The acoustical behavior of device.
Particularly, the height of the lines is less than or equal to the height of decorative pattern.It will be appreciated by those skilled in the art that, on Height is stated, refers to that wherein reinforcing rib is from the straight line portion surface bulge in ring portion or the height of recess in lines;Refer in the flower , decorative pattern is from the surface bulge of ring portion corner or the height of recess.
For example, the height of lines 22 is 0.2mm in Microspeaker, the height of decorative pattern 21 is 0.5mm.Decorative pattern is being rolled over At the corner of ring portion, play the role of enhancing vibrating diaphragm intensity;And it is located at the lines on ring portion straight line portion, help to reduce vibration The problem of film is reduced because there is multiple fold, reliability, failure.The height of above-mentioned lines and decorative pattern, only a kind of optional implementation The citing of mode, in different Microspeaker structures, those skilled in the art can be as needed, equal proportion increase/reduction The height of lines and decorative pattern, to obtain the better acoustical behavior of Microspeaker.
Specifically, in lines, the waling is different with the height of the cross reinforcing.For example, in lines Waling 221 and/or cross reinforcing 222 can successively increase/successively decrease to the both ends of straight line portion along center, or Center of the person from the both ends of straight line portion to straight line portion is alternately arranged with different height.The reinforcing rib of different height can be straight in this way Smooth transition in line portion advantageously reduces Microspeaker and the problems such as distortion, noise occurs.
Optionally, lines is all formed on every straight line portion.Since the shape of vibrating diaphragm is mostly rectangle or track type, directly The length in line portion is not quite identical.Lines is symmetrically arranged on straight line portion, it can be not right to avoid vibrating diaphragm in vibration processes The vibrational state for weighing up existing marbleizing effect vibrating diaphragm leads to polarization.
Certainly, in the biggish Microspeaker of length-width ratio, lines only can be set on longer right-angle side.
Preferably, two pairs of lines are separately positioned on the right-angle side in ring portion.In this way, being improved for reducing vibrating diaphragm polarization The pliable better effect of vibrating diaphragm is significant.
As shown in Figure 1, the reinforcing rib shown includes waling and cross reinforcing, the waling and transverse direction The extending direction of reinforcing rib is in predetermined angle.Waling and laterally reinforcement can be also possible to close to predetermined angle is formed Two reinforcing ribs are separated by a distance, and extension line forms predetermined angle.For example, predetermined angle can be 45 °, 90 °, 135 ° Deng, the present embodiment to the degree of the predetermined angle with no restrictions.
The waling and cross reinforcing are arranged in the ring portion.Vibrating diaphragm ring portion is helped to improve in this way Structural strength so that vibration it is more steady, reduce higher hamonic wave distortion, improve the acoustical behavior of Microspeaker.
The another aspect of the utility model also provides a kind of Microspeaker.The Microspeaker includes: loudspeaker ontology And the vibrating diaphragm of the utility model, the vibrating diaphragm are arranged in the loudspeaker ontology.
Although being described in detail by some specific embodiments of the example to the utility model, this field It is to be understood by the skilled artisans that above example merely to be illustrated, 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 where, to above embodiments It modifies.The scope of the utility model is defined by the following claims.

Claims (10)

1. a kind of vibrating diaphragm characterized by comprising ring portion, the ring portion are in successively to be spaced to enclose by corner and straight line portion At track type structure, decorative pattern is distributed in four corner, rough lines, institute are distributed on the straight line portion The position that length direction of the lines along the straight line portion extends to the neighbour decorative pattern is stated, also, the lines is along described straight The width direction in line portion extends to the edge in the ring portion, is symmetricly set on the straight line portion.
2. vibrating diaphragm according to claim 1, which is characterized in that the lines is made of the reinforcing rib of several protrusions.
3. vibrating diaphragm according to claim 2, which is characterized in that the reinforcing rib includes waling and/or laterally adds Strengthening tendons.
4. vibrating diaphragm according to claim 2, which is characterized in that the reinforcing rib can along the ring portion surface it is inside Side is raised or raised outward.
5. vibrating diaphragm according to claim 1, which is characterized in that the decorative pattern and the lines are to the same of the ring portion Side or not ipsilateral protrusion.
6. vibrating diaphragm according to claim 3, which is characterized in that the reinforcing rib includes waling and laterally reinforces Muscle, several described walings and several cross reinforcing unequal spacings are distributed on the straight line portion;
Alternatively, several described walings and several described cross reinforcings are distributed at equal intervals the straight line portion On.
7. vibrating diaphragm according to claim 1, which is characterized in that the height of the lines is less than or equal to the height of the decorative pattern Degree.
8. vibrating diaphragm according to claim 3, which is characterized in that the height of the waling and the cross reinforcing It is different.
9. vibrating diaphragm according to claim 3, which is characterized in that the extending direction of the waling and cross reinforcing In predetermined angle, the waling and cross reinforcing are arranged in the ring portion.
10. a kind of Microspeaker characterized by comprising Microspeaker ontology and claim 1-9 are any described Vibrating diaphragm, the vibrating diaphragm are arranged in the Microspeaker ontology.
CN201821408001.XU 2018-08-29 2018-08-29 A kind of vibrating diaphragm and Microspeaker Active CN208609174U (en)

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CN201821408001.XU CN208609174U (en) 2018-08-29 2018-08-29 A kind of vibrating diaphragm and Microspeaker

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Application Number Priority Date Filing Date Title
CN201821408001.XU CN208609174U (en) 2018-08-29 2018-08-29 A kind of vibrating diaphragm and Microspeaker

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111065023A (en) * 2019-12-30 2020-04-24 歌尔科技有限公司 Vibrating diaphragm and loudspeaker
WO2024198116A1 (en) * 2023-03-31 2024-10-03 瑞声光电科技(常州)有限公司 Loudspeaker diaphragm and loudspeaker

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111065023A (en) * 2019-12-30 2020-04-24 歌尔科技有限公司 Vibrating diaphragm and loudspeaker
WO2024198116A1 (en) * 2023-03-31 2024-10-03 瑞声光电科技(常州)有限公司 Loudspeaker diaphragm and loudspeaker

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