CN114554365A

CN114554365A - Elastic wave vibration film

Info

Publication number: CN114554365A
Application number: CN202210164200.5A
Authority: CN
Inventors: 吴少虎; 李宝莹
Original assignee: Shenzhen Yusheng Electronic Co ltd
Current assignee: Shenzhen Yusheng Electronic Co ltd
Priority date: 2022-02-22
Filing date: 2022-02-22
Publication date: 2022-05-27
Anticipated expiration: 2042-02-22
Also published as: CN114554365B

Abstract

The invention discloses an elastic wave vibration film, which comprises an annular body, wherein the annular body is in a conical barrel structure, a bearing platform is arranged at one end of the annular body, and a voice coil hole is formed in the bearing platform; a bent portion attached to an outer side of a circumferential edge of the other end of the annular body; one side of the elastic wave part is connected with the bending part; and the inner side surface of the lapping part is connected with the other side of the elastic wave part. The invention has the characteristics of preventing the diaphragm from deforming during high-pitch vibration, prolonging the service life of the diaphragm and the like.

Description

Elastic wave vibration film

Technical Field

The invention relates to a vibrating membrane of a loudspeaker, in particular to an elastic wave vibrating membrane.

Background

Loudspeakers are widely used in modern life electronics such as: mobile phones, PDAs, notebook computers, digital cameras, MP3, MP4, and various audios. The sound of the loudspeaker requires pure tone, rich bass and simultaneously requires the brightness of medium and high frequencies.

The diaphragm is an important component of the loudspeaker, which plays a crucial role in the sound reproduction performance of the loudspeaker, and it determines the quality of the electrical-to-acoustic conversion of the loudspeaker. The diaphragm is usually formed by placing the material of the diaphragm in a mold and then pressing the material at a high temperature.

The existing vibrating diaphragms are also disclosed in various forms, and relevant patent documents are obtained by searching the existing Chinese patent documents as follows:

1. chinese patent CN201345727Y discloses a diaphragm, which is provided with at least two layers of corrugated parts from the center of the dome to the outer edge thereof, wherein any layer of corrugated part is provided with a plurality of discontinuous corrugations, and the corrugations of adjacent layers are also discontinuous.

2. Chinese patent CN211744715U, which discloses a diaphragm, specifically is: an annular bead portion and a central portion within and connected to the bead portion, the central portion being configured as a domed surface that bulges outwardly relative to a plane in which the annular limits of the central portion and bead portion lie, the central portion being of a laminated construction comprising at least two outer hard layers on the outside and a light-weight support layer between the two outer hard layers.

3. Chinese patent CN201435818Y, which discloses a diaphragm, specifically is: the extension part extends outwards from the top of the ball and the fixing part is connected with the extension part, and the extension part is provided with spiral-line-shaped folds.

4. Chinese patent CN208707937U, which discloses a diaphragm, specifically is: the vibrating diaphragm comprises a ball top arranged in the center and a folded ring part arranged on the outer side of the ball top, the ball top is in a hemispherical shape protruding upwards, one end of the folded ring part is connected to the outer edge of the ball top, the other end of the folded ring part extends upwards, and the inclined angle of the folded ring part is gradually reduced from the inner side to the outer side so that the folded ring part forms an arc-shaped folded ring part; the joint of the top of the ball and the folded ring part is downwards provided with a connecting ring, the outer wall of the connecting ring is provided with a supporting film tightly connected with the lower surface of the folded ring part, and the area of the supporting film is 1/2 of the vibrating film.

As can be seen from the above patent documents, all refer to the structure of the diaphragm, and all aim to enhance the rigidity of the diaphragm. Obviously, when the treble vibrates, the diaphragm is easily stretched by the rigidity to generate plastic deformation, so that the diaphragm is forced to vibrate and distort, and the tone quality is influenced.

Disclosure of Invention

The invention aims to provide an elastic wave vibration film aiming at the defects of the prior art.

In order to realize the purpose of the invention, the following technical scheme is adopted:

an elastic wave vibration film comprises an annular body which is in a conical barrel structure, a bearing platform is arranged at one end of the annular body, and a voice coil hole is formed in the bearing platform; a bent portion attached to an outer side of a circumferential edge of the other end of the annular body; one side of the elastic wave part is connected with the bending part; and the inner side surface of the lapping part is connected with the other side of the elastic wave part.

Furthermore, the elastic wave vibration film further comprises a buffer part; the annular body is provided with a plurality of buffer parts arranged at intervals.

Furthermore, the buffer part is of an open circular groove structure.

Further, the annular groove protrudes toward the inside of the annular body.

Furthermore, the elastic wave vibration film also comprises a deformation suppression component; a plurality of deformation restraining parts are distributed on the bending part.

Furthermore, the deformation inhibiting parts are distributed on the inner side and the outer side of the bending part, and the deformation inhibiting parts on the inner side and the outer side are distributed in a staggered mode.

Furthermore, the elastic wave vibration film further comprises a particle layer; and a particle layer is sprayed on the inner side surface of the annular body.

Further, the particle layer is a nanoparticle layer.

Furthermore, the annular body, the bending part, the elastic part and the overlapping part are all made of polyethylene naphthalate (PEN), Polyarylate (PAR), polyether ether ketone (PEEK), Polyetherimide (PEI) or biological cellulose.

Furthermore, the section of the elastic wave part is of a wave structure.

Compared with the prior art, the invention has the advantages that:

1. the invention can provide better tone quality for the sound equipment and provide better hearing enjoyment for people; the vibration film can be protected when the treble vibrates, and the vibration film is prevented from being torn; the elastic wave part and the bending part are in a suspension state, so that the resonance frequency can be conveniently adjusted, and the amplitude of the vibrating diaphragm can be elastically changed. The vibrating diaphragm is torn when effectively avoiding the high pitch vibration.

2. The invention adds the buffer part, the buffer part is arranged on the annular body, the buffer part can be elastic and flexible, the rigid stretching of the annular body can be avoided, and the deformation and vibration distortion of the annular body can be prevented.

3. The buffer part of the invention is in an open ring groove structure and protrudes towards the inner side of the ring body; the ring is uncovered can make the buffering portion have certain elasticity, can make the ring body when the high pitch vibration, and the ring groove has elastic deformation, avoids appearing the rigidity tensile and warp and the aphonia appears.

4. The invention distributes a plurality of deformation inhibiting pieces on the bending part, the deformation inhibiting pieces are in an arc segment structure and are distributed on the inner side and the outer side of the bending part, and the deformation inhibiting pieces distributed on the two sides are distributed in a staggered way; can provide better resistance to deformation for the portion of bending avoids being pulled out sunken when the high pitch vibrates, can protect the portion of bending, can make the portion of bending normally work again.

5. The tone quality can be improved by spraying the granular layer on the inner side surface of the annular body, and the tone quality can be further improved by adopting the nano granular layer as the granular layer.

6. One of the annular body, the bending part and the elastic wave part is made of biological cellulose, so that high frequency is brought, the tip is not sharp, and a wide feeling is brought to people; the resolution of the detail part is strong, and the user can listen to the music clearly without a big earphone; the intermediate frequency part is of a very hearing-resistant type, and does not feel tired due to long-time hearing, and the surrounding sense of the human voice part is created very thoroughly. The other characteristic is that when many instruments and voices are combined together, the large dynamic performance is not confused at all, and the large dynamic performance can still be heard clearly for various instruments and voices.

Drawings

In order to more clearly illustrate the detailed description of the invention or the technical solutions in the prior art, the drawings that are needed in the detailed description of the invention or the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.

FIG. 1 is a schematic structural diagram of an elastic wave diaphragm according to the present invention;

FIG. 2 is a schematic view showing a structure of a particle layer sprayed on an annular body according to the present invention;

FIG. 3 is a schematic structural view of a diaphragm according to the present invention;

names and serial numbers of the components in the figure: 1-vibrating diaphragm, 11-lap joint part, 12-elastic wave part, 13-folded ring part, 14-deformation inhibitor, 15-annular body, 16-buffer part, 17-bearing platform, 18-voice coil hole and 19-particle layer.

Detailed Description

In order to make the technical solutions in the present application better understood, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings and embodiments, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and all other embodiments obtained by a person of ordinary skill in the art without making creative efforts based on the embodiments in the present application shall fall within the protection scope of the present application.

As shown in fig. 1 to 3, an elastic wave diaphragm includes an annular body 15 having a conical tube structure, a supporting platform 17 disposed at one end of the annular body, and a voice coil hole 18 disposed on the supporting platform 17; a bent portion 13 attached to the outer side of the circumferential edge of the other end of the annular body 15; an elastic wave portion 12, one side of which is connected to the bent portion 13; and a bridging part 11, the inner side of which is connected with the other side of the wave part 12.

The bearing platform 17 facilitates installation of a dust cap to prevent dust and the like from falling.

The elastic wave part 12 is of a circumferential structure and can enhance the elasticity of the vibrating membrane, and when the high-pitch vibration occurs, the elastic wave part can provide elastic protection and avoid the vibrating membrane from vibrating and deforming to cause noise loss. And the elastic wave part and the bending part are in a suspension state, so that the resonance frequency can be conveniently adjusted, and the amplitude of the vibrating diaphragm can be elastically changed. The vibrating diaphragm is torn when effectively avoiding the high pitch vibration.

The lapping part 11 is used for mounting the diaphragm on the basin stand.

In some embodiments, to prevent the ring from vibration cracking, a buffer 16 is added. The annular body 15 is provided with a plurality of cushioning portions 16 arranged at intervals. Buffering portion can further protect the vibrating diaphragm by the rigidity tensile when the high pitch vibration, reduces the vibrating diaphragm and is destroyed by the high pitch vibration, can effectively keep the tone quality of vibrating diaphragm again.

In some embodiments, a form of the buffer is given. The buffer part 16 is an open circular groove structure. The buffer part has certain elasticity and can play a better buffer role.

In some embodiments, the buffer portion is provided in a positional relationship with respect to the annular body, and the annular groove is projected toward the inside of the annular body 15. The tone quality of the diaphragm is not changed while the buffer effect is achieved.

In some embodiments, in order to further prevent the bending portion from vibrating or deforming by pressing, a restraining member 14 is added. A plurality of deformation inhibiting pieces 14 are distributed on the bending part 13. The deformation inhibiting component is in a circular arc section structure. The intensity of the portion of bending can be strengthened, the portion of bending vibration is avoided appearing sunken the deformation. The tone quality of the diaphragm is kept.

In some embodiments, a structural form of the deformation inhibitor distributed on the bending part is given. The deformation inhibiting pieces 14 are distributed on the inner side and the outer side of the bending part 13, and the deformation inhibiting pieces 14 on the inner side and the outer side are distributed in a staggered mode. The strength of the bending part can be better enhanced.

In order to be able to increase the effect of the sound quality, in some embodiments, the layer of granulate 19 is sprayed on. A particle layer 19 is sprayed on the inner side of the annular body 15. The sound quality can be further improved.

In some embodiments, the particle layer 19 is a nanoparticle layer. The strength of the annular body can be further improved, and the quality of the sound quality can be improved.

In some embodiments, the ring body 15, the bent portion 13, the wave-shaped portion 12 and the overlapping portion 11 are made of any one of polyethylene naphthalate PEN, polyarylate PAR, polyetheretherketone PEEK, polyetherimide PEI or biocellulose.

The vibrating membrane is made of biological cellulose, so that high frequency is brought, and the feeling of being not sharp is brought to people; the resolution of the detail part is strong, and the user can listen to the music clearly without a big earphone; the intermediate frequency part is of a very hearing-resistant type, and does not feel tired due to long-time hearing, and the surrounding sense of the human voice part is created very thoroughly. The other characteristic is that when many instruments and voices are combined together, the large dynamic performance is not confused at all, and the large dynamic performance can still be heard clearly for various instruments and voices.

In some embodiments, the cross-section of the popple 12 is of an undulating configuration. The elasticity and the flexibility of the elastic wave part are increased.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are intended to be within the scope of the invention.

Claims

1. An elastic wave diaphragm, characterized in that the diaphragm comprises

An annular body (15) having a conical tube structure, wherein a bearing platform (17) is provided at one end of the annular body, and a voice coil hole (18) is provided in the bearing platform (17);

a bent portion (13) attached to the outside of the circumferential edge of the other end of the annular body (15);

an elastic wave part (12) one side of which is connected with the bending part (13); and

and the inner side surface of the lapping part (11) is connected with the other side of the wave-ejecting part (12).

2. The damper diaphragm according to claim 1, wherein: further comprises a buffer part (16);

the annular body (15) is provided with a plurality of cushioning portions (16) arranged at intervals.

3. The damper diaphragm according to claim 2, wherein: the buffer part (16) is in an open circular groove structure.

4. The damper diaphragm according to claim 3, wherein: the annular groove protrudes towards the inside of the annular body (15).

5. The damper diaphragm according to claim 1, wherein: also includes a rheostat (14);

a plurality of deformation restraining pieces (14) are distributed on the bending part (13).

6. The damper diaphragm according to claim 5, wherein: the inner side and the outer side of the bending part (13) are both distributed with the deformation inhibiting pieces (14), and the deformation inhibiting pieces (14) on the inner side and the outer side are distributed in a staggered manner.

7. The damper diaphragm according to any one of claims 1 to 6, wherein: further comprising a particle layer (19);

a particle layer (19) is sprayed on the inner surface of the annular body (15).

8. The damper diaphragm according to claim 7, wherein: the particle layer (19) is a nanoparticle layer.

9. The damper diaphragm according to claim 7, wherein: the ring body (15), the bending portion (13), the wave-shaped portion (12) and the overlapping portion (11) are all made of polyethylene naphthalate (PEN), Polyarylate (PAR), polyether ether ketone (PEEK), Polyetherimide (PEI) or biological cellulose.

10. The damper diaphragm according to claim 7, wherein: the section of the elastic wave part (12) is of a wave structure.