阅读说明：本技术 振膜组件、扬声器模组和电子设备 (Vibrating diaphragm subassembly, speaker module and electronic equipment ) 是由 魏鹏江 张圆媛 于 2021-06-11 设计创作，主要内容包括：本发明实施例公开了一种振膜组件、扬声器模组和电子设备,振膜组件包括振膜本体和中贴板,振膜本体包括第一振膜本体和第二振膜本体,第一振膜本体具有第一孔,中贴板包括第一中贴板,第二振膜本体至少部分地遮挡第一孔,第一中贴板与第一振膜本体和第二振膜本体分别连接；通过将第一中贴板设置为封闭结构,或中贴板包括第二中贴板并使第二中贴板与第二振膜本体连接,使得扬声器模组的中频和高频曲线更加平滑,有效地改善中高频音质,同时,振膜组件的结构紧凑,有利于扬声器模组和电子设备的小型化。(The embodiment of the invention discloses a vibrating diaphragm assembly, a loudspeaker module and electronic equipment, wherein the vibrating diaphragm assembly comprises a vibrating diaphragm body and a middle pasting plate, the vibrating diaphragm body comprises a first vibrating diaphragm body and a second vibrating diaphragm body, the first vibrating diaphragm body is provided with a first hole, the middle pasting plate comprises a first middle pasting plate, the second vibrating diaphragm body at least partially shields the first hole, and the first middle pasting plate is respectively connected with the first vibrating diaphragm body and the second vibrating diaphragm body; through setting up the flitch into enclosed construction in with first, or the flitch includes the flitch in the second and makes flitch and this body coupling of second vibrating diaphragm in the second for the intermediate frequency and the high frequency curve of speaker module are more level and smooth, improve medium-high frequency tone quality effectively, and simultaneously, the compact structure of vibrating diaphragm subassembly is favorable to speaker module and electronic equipment's miniaturization.)

1. A diaphragm assembly, comprising:

a diaphragm body including a first diaphragm body (11) and a second diaphragm body (21, 22), the first diaphragm body (11) having a first hole (111), the second diaphragm body (21, 22) at least partially shielding the first hole (111); and

the middle pasting plate is connected with the vibrating diaphragm body and comprises first middle pasting plates (31 and 32), the first middle pasting plates (31 and 32) are connected with the first vibrating diaphragm body (11) and the second vibrating diaphragm bodies (21 and 22), and the first middle pasting plates (31 and 32) are of closed structures.

2. The diaphragm assembly of claim 1, wherein the first mid plate (32) has a first recess (321) in a central portion thereof, and the second diaphragm body (22) has a second hole (221), the first recess (321) being received in the second hole (221).

3. A diaphragm assembly, comprising:

a diaphragm body including a first diaphragm body (11) and a second diaphragm body (21, 22), the first diaphragm body (11) having a first hole (111), the second diaphragm body (21, 22) at least partially shielding the first hole (111); and

and the middle pasting plate is connected with the diaphragm body, the middle pasting plate comprises a first middle pasting plate (33) and second middle pasting plates (41, 42 and 43), the first middle pasting plate (33) is provided with a third hole (331), the second middle pasting plates (41, 42 and 43) are arranged in the third hole (331), the first middle pasting plate (33) is connected with the first diaphragm body (11) and the second diaphragm body (21 and 22), and the second middle pasting plates (41, 42 and 43) are connected with the second diaphragm body (21 and 22).

4. A diaphragm assembly as claimed in claim 3, wherein the second mid-plane (41, 42) is a closed structure.

5. The diaphragm assembly of claim 4, wherein the second mid plate (42) has a second recess (421) at a central portion thereof, the second diaphragm body (22) has a second hole (221), and the second recess (421) is received in the second hole (221).

6. A diaphragm assembly as claimed in claim 3, wherein the second mid plate (43) has a fourth aperture (431).

7. A diaphragm assembly according to claim 3, wherein a gap is provided between the second mid-plane (41, 42, 43) and the inner wall of the third aperture (331).

8. A diaphragm assembly as claimed in claim 3, wherein the first and second mid-plates (33, 41, 42, 43) are connected to the same side surface of the second diaphragm body (21, 22); alternatively, the first and second electrodes may be,

the first and second mid-slabs (33, 41, 42, 43) are connected to different side surfaces of the second diaphragm body (21, 22).

9. The diaphragm assembly of claim 1 or 3, wherein the first diaphragm body (11) includes an outer layer connecting portion (112), an inner layer connecting portion (113), and a corrugated rim (114) disposed between the outer layer connecting portion (112) and the inner layer connecting portion (113), the first middle attachment plate (31, 32, 33) is connected to the inner layer connecting portion (113), and the outer layer connecting portion (112) is used for fixedly mounting the diaphragm assembly.

10. A diaphragm assembly as claimed in claim 1 or 3, wherein the second diaphragm body (21) is of closed construction.

11. A diaphragm assembly as claimed in claim 1 or 3, wherein the second diaphragm body (22) has a second aperture (221).

12. A diaphragm assembly as claimed in claim 1 or 3, wherein the first diaphragm body (11) and the second diaphragm body (21, 22) are connected to the same side surface of the first mid-plane (31, 32, 33); alternatively, the first and second electrodes may be,

the first diaphragm body (11) and the second diaphragm bodies (21, 22) are connected to different side surfaces of the first mid-plane (31, 32, 33).

13. A speaker module, comprising:

a tub frame (61);

a magnetic circuit system (70) for forming a magnetic field; and

vibration system comprising a voice coil (50) and a diaphragm assembly (X) according to any of claims 1 to 12, wherein the diaphragm body is connected to the frame (61), the voice coil (50) is disposed in a magnetic field formed by the magnetic circuit system (70), and the voice coil (50) is configured to be driven by a varying magnetic field generated by the magnetic circuit system (70) to vibrate the diaphragm assembly (X).

14. An electronic device comprising at least one speaker module according to claim 13.

Technical Field

The invention relates to the technical field of electroacoustic conversion, in particular to a vibrating diaphragm assembly, a loudspeaker module and electronic equipment.

Background

A speaker is a commonly used electroacoustic transducer, and a large number of electronic products are provided with the speaker to play sound. With the development of electronic products toward miniaturization and lightness, the space for installing the speaker module in the electronic products is also compressed, which puts higher demands on the miniaturization of the speaker module. In order to reduce the volume, a small or micro speaker module in the prior art can correspondingly sacrifice a part of tone quality effect, and influences the use experience of a user. In order to improve the user experience, a speaker module capable of achieving both miniaturization and good acoustic performance needs to be designed.

Disclosure of Invention

An object of the embodiments of the present invention is to provide a diaphragm assembly, a speaker module and an electronic device, which can solve the above problems in the prior art.

In a first aspect, an embodiment of the present invention provides a diaphragm assembly, including a diaphragm body and a middle patch plate; the diaphragm body comprises a first diaphragm body and a second diaphragm body, the first diaphragm body is provided with a first hole, and the second diaphragm body at least partially shields the first hole; the middle pasting plate is connected with the vibrating diaphragm body and comprises a first middle pasting plate, the first middle pasting plate is connected with the first vibrating diaphragm body and the second vibrating diaphragm body, and the first middle pasting plate is of a closed structure.

Furthermore, the middle part of the first middle pasting plate is provided with a first sunken part, the second diaphragm body is provided with a second hole, and the first sunken part is accommodated in the second hole.

Further, first vibrating diaphragm body includes outer connecting portion, inlayer connecting portion and set up in outer connecting portion with roll over the ring between the inlayer connecting portion, first well flitch with inlayer connecting portion are connected, outer connecting portion are used for fixed mounting the vibrating diaphragm subassembly.

Further, the second diaphragm body is of a closed structure.

Further, the second diaphragm body has a second hole.

Further, the first diaphragm body and the second diaphragm body are connected with the same side surface of the first middle pasting plate; or the first diaphragm body and the second diaphragm body are connected with different side surfaces of the first middle pasting plate.

In a second aspect, an embodiment of the present invention further provides another diaphragm assembly, including a diaphragm body and a middle patch; the diaphragm body comprises a first diaphragm body and a second diaphragm body, the first diaphragm body is provided with a first hole, and the second diaphragm body at least partially shields the first hole; the middle pasting board is connected with the vibrating diaphragm body and comprises a first middle pasting board and a second middle pasting board, the first middle pasting board is provided with a third hole, the second middle pasting board is arranged in the third hole, the first middle pasting board is connected with the first vibrating diaphragm body and the second vibrating diaphragm body, and the second middle pasting board is connected with the second vibrating diaphragm body.

Further, the second middle pasting plate is of a closed structure.

Furthermore, the middle part of the second middle pasting plate is provided with a second sunken part, the second diaphragm body is provided with a second hole, and the second sunken part is accommodated in the second hole.

Further, the second middle pasting board is provided with a fourth hole.

Further, a certain gap is formed between the second middle pasting plate and the inner wall of the third hole.

Further, the first middle pasting board and the second middle pasting board are connected with the same side surface of the second diaphragm body; or the first middle pasting plate and the second middle pasting plate are connected with different side surfaces of the second diaphragm body.

Further, first vibrating diaphragm body includes outer connecting portion, inlayer connecting portion and set up in outer connecting portion with roll over the ring between the inlayer connecting portion, first well flitch with inlayer connecting portion are connected, outer connecting portion are used for fixed mounting the vibrating diaphragm subassembly.

Further, the second diaphragm body is of a closed structure;

further, the second diaphragm body has a second hole.

Further, the first diaphragm body and the second diaphragm body are connected with the same side surface of the first middle pasting plate; or the first diaphragm body and the second diaphragm body are connected with different side surfaces of the first middle pasting plate.

In a third aspect, an embodiment of the present invention further provides a speaker module, including a frame, a magnetic circuit system, and a vibration system; the magnetic circuit system is used for forming a magnetic field; the vibration system comprises a voice coil and the diaphragm assembly according to the first aspect or the second aspect, the diaphragm body is connected with the basin frame, the voice coil is arranged in a magnetic field formed by the magnetic circuit system, and the voice coil is configured to be driven by a changing magnetic field generated by the magnetic circuit system to drive the diaphragm assembly to vibrate.

In a fourth aspect, an embodiment of the present invention further provides an electronic device, including at least one speaker module according to the third aspect.

The vibrating diaphragm assembly comprises a vibrating diaphragm body and a middle pasting plate, wherein the vibrating diaphragm body comprises a first vibrating diaphragm body and a second vibrating diaphragm body, the first vibrating diaphragm body is provided with a first hole, the middle pasting plate comprises a first middle pasting plate, the second vibrating diaphragm body at least partially shields the first hole, and the first middle pasting plate is respectively connected with the first vibrating diaphragm body and the second vibrating diaphragm body; through setting up the flitch into enclosed construction in with first, or the flitch includes the flitch in the second and makes flitch and this body coupling of second vibrating diaphragm in the second for the intermediate frequency and the high frequency curve of speaker module are more level and smooth, improve medium-high frequency tone quality effectively, and simultaneously, the compact structure of vibrating diaphragm subassembly is favorable to speaker module and electronic equipment's miniaturization.

Drawings

The above and other objects, features and advantages of the present invention will become more apparent from the following description of the embodiments of the present invention with reference to the accompanying drawings, in which:

fig. 1 is a schematic perspective view of a first diaphragm assembly according to an embodiment of the present invention;

FIG. 2 is an exploded view of a first diaphragm assembly in accordance with an embodiment of the present invention;

FIG. 3 is a top view of a first diaphragm assembly in accordance with an embodiment of the invention;

FIG. 4 is a schematic cross-sectional view of a first diaphragm assembly of an embodiment of the invention taken along plane A-A;

FIG. 5 is a partial enlarged view of a diaphragm assembly according to a first embodiment of the present invention at B;

FIG. 6 is a schematic perspective view of a second diaphragm assembly according to an embodiment of the present invention;

FIG. 7 is an exploded view of a second diaphragm assembly in accordance with an embodiment of the invention;

FIG. 8 is a top view of a second diaphragm assembly in accordance with an embodiment of the invention;

FIG. 9 is a schematic cross-sectional view of a second diaphragm assembly of an embodiment of the invention taken along plane C-C;

FIG. 10 is a partial enlarged view of a second diaphragm assembly according to an embodiment of the invention at D;

FIG. 11 is a schematic perspective view of a third diaphragm assembly according to an embodiment of the invention;

FIG. 12 is an exploded view of a third diaphragm assembly in accordance with an embodiment of the invention;

FIG. 13 is a top view of a third diaphragm assembly in accordance with an embodiment of the invention;

FIG. 14 is a cross-sectional view of a third diaphragm assembly of an embodiment of the invention taken along plane E-E;

FIG. 15 is a partial enlarged view of a third diaphragm assembly according to an embodiment of the invention at F

FIG. 16 is a schematic perspective view of a fourth diaphragm assembly according to an embodiment of the present invention;

FIG. 17 is a top view of a fourth diaphragm assembly in accordance with an embodiment of the invention;

FIG. 18 is a schematic cross-sectional view of a fourth diaphragm assembly of an embodiment of the invention taken in the G-G plane;

FIG. 19 is an enlarged partial view at H of a fourth diaphragm assembly in accordance with an embodiment of the invention;

FIG. 20 is a schematic perspective view of a fifth diaphragm assembly according to an embodiment of the invention;

FIG. 21 is a schematic perspective view of a fifth diaphragm assembly according to an embodiment of the invention from another perspective;

FIG. 22 is an exploded view of a fifth diaphragm assembly in accordance with an embodiment of the present invention;

FIG. 23 is a top view of a fifth diaphragm assembly in accordance with an embodiment of the invention;

FIG. 24 is a schematic cross-sectional view in plane I-I of a fifth diaphragm assembly in accordance with an embodiment of the invention;

FIG. 25 is an enlarged, partial schematic view at J of a fifth diaphragm assembly in accordance with an embodiment of the invention;

FIG. 26 is a schematic view of a diaphragm assembly according to an embodiment of the present invention;

FIG. 27 is a side view of a first diaphragm body according to an embodiment of the invention;

fig. 28 is an external view of a speaker module according to an embodiment of the invention;

fig. 29 is an exploded view of a speaker module according to an embodiment of the present invention;

fig. 30 is a graph comparing the simulation results of the acoustic performance of the speaker module according to the embodiment of the present invention and the conventional speaker module.

Description of reference numerals:

an X-diaphragm assembly;

11-a first diaphragm body; 111-a first hole; 112-outer layer connection; 113-inner layer connection; 114-fold ring;

21-a second diaphragm body; 22-a second diaphragm body; 221-a second hole;

31-a first middle flitch; 32-a first middle flitch; 321-a first recess; 33-a first middle flitch; 331-a third aperture;

41-a second middle pasting board; 42-a second middle flitch; 421-a second recess; 43-a second middle pasting board; 431-a fourth hole;

50-a voice coil;

60-a housing; 61-a basin stand; 62-a sound guide tube;

70-magnetic circuit system.

Detailed Description

The present invention will be described below based on examples, but the present invention is not limited to only these examples. In the following detailed description of the present invention, certain specific details are set forth. It will be apparent to one skilled in the art that the present invention may be practiced without these specific details. Well-known methods, procedures, components and circuits have not been described in detail so as not to obscure the present invention.

Further, those of ordinary skill in the art will appreciate that the drawings provided herein are for illustrative purposes and are not necessarily drawn to scale.

Unless the context clearly requires otherwise, throughout the description, the words "comprise", "comprising", and the like are to be construed in an inclusive sense as opposed to an exclusive or exhaustive sense; that is, what is meant is "including, but not limited to".

In the description of the present invention, it is to be understood that the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.

Fig. 1-25 are schematic structural diagrams of five different diaphragm assemblies according to embodiments of the present invention.

Wherein FIG. 4 is a schematic cross-sectional structure of the first diaphragm assembly taken along the plane A-A in FIG. 3, FIG. 9 is a schematic cross-sectional structure of the second diaphragm assembly taken along the plane C-C in FIG. 8,

figure 14 is a cross-sectional view of a third diaphragm assembly taken along plane E-E of figure 13,

FIG. 18 is a cross-sectional structural view of a fourth diaphragm assembly taken along the plane G-G in FIG. 17, and FIG. 24 is a cross-sectional structural view of a fifth diaphragm assembly taken along the plane I-I in FIG. 23; fig. 5 is a schematic diagram of a partial enlargement at B in fig. 4, fig. 10 is a schematic diagram of a partial enlargement at D in fig. 9, fig. 15 is a schematic diagram of a partial enlargement at F in fig. 14, fig. 19 is a schematic diagram of a partial enlargement at H in fig. 18, and fig. 25 is a schematic diagram of a partial enlargement at J in fig. 24.

Referring to fig. 1 to 25, the diaphragm assembly includes a diaphragm body and a middle patch, and the middle patch is connected to the diaphragm body. The diaphragm body includes a first diaphragm body 11 and a second diaphragm body 21 (or 22), the first diaphragm body 11 has a first hole 111, and the second diaphragm body 21 (or 22) at least partially blocks the first hole 111 of the first diaphragm body 11. In other words, the projection of the second diaphragm body 21 (or 22) in the axial direction of the diaphragm assembly has an overlapping portion with the first hole 111. In this application, the axis direction of the diaphragm assembly is substantially the same as the thickness direction of the diaphragm assembly, and the diaphragm assembly moves in the axis direction when being driven. Referring to fig. 3, 8, 13, 17, and 23, the axial direction of the diaphragm assembly is a direction perpendicular to the paper. The middle pasting board includes a first middle pasting board 31 (or 32, or 33), where the first middle pasting board 31 (or 32, or 33) is connected to the first diaphragm body 11 and the second diaphragm body 21 (or 22), that is, the first middle pasting board 31 (or 32, or 33) is connected between the first diaphragm body 11 and the second diaphragm body 21 (or 22), or the first diaphragm body 11 and the second diaphragm body 21 (or 22) are connected through the first middle pasting board 31 (or 32, or 33), so that a certain relative position is maintained between the first diaphragm body 11 and the second diaphragm body 21 (or 22).

By adjusting the rigidity of the first diaphragm body 11 and the second diaphragm body 21 (or 22), the mass of the first diaphragm body 11, the second diaphragm body 21 (or 22), and the middle patch, the lowest resonance frequency of the first diaphragm body 11 and the second diaphragm body 21 (or 22) can be changed, and specifically, the adjustment can be performed according to the result of the acoustic performance simulation, so that the diaphragm assembly can have the expected acoustic performance. In operation, the first diaphragm body 11 and the second diaphragm body 21 (or 22) cooperate with the first middle pasting board 31 (or 32, or 33) to generate a plurality of resonance modes, so that the middle frequency sensitivity of the whole diaphragm assembly can be more smoothly shown.

The diaphragm bodies are made of thin film materials suitable for being driven to vibrate back and forth, and the materials used for the first diaphragm body 11 and the second diaphragm body 21 (or 22) include, but are not limited to, paper films, metal films, polymer films, composite type diaphragms (e.g., carbon fiber diaphragms, biological composite diaphragms, etc.), and the like. The specific materials of the first diaphragm body 11 and the second diaphragm body 21 (or 22) may be selected according to the frequency response characteristics expected to be provided by the diaphragm assembly. The first diaphragm body 11 and the second diaphragm body 21 (or 22) may be made of the same material, or may be made of different materials.

The shape of the diaphragm body may be designed according to the application of the diaphragm assembly and the expected frequency characteristics, and the outer contours of the first diaphragm body 11 and the second diaphragm body 21 (or 22) may be circular, elliptical, rectangular, polygonal or other shapes suitable for practical applications. The shape of the second diaphragm body 21 (or 22) may be similar to the shape of the first diaphragm body 11, or may be completely different. The shape of the first hole 111 of the first diaphragm body 11 may be substantially the same as the outer contour shape of the first diaphragm body 11. The outer contour shape of the second diaphragm body 21 (or 22) may also be substantially the same as the shape of the first hole 111. In some embodiments, referring to fig. 1 to 25, the outer contours of the second diaphragm body 21 (or 22) and the first diaphragm body 11 are substantially rectangular, the contour of the first hole 111 is also substantially rectangular, and the outer edges of the first diaphragm body 11, the first hole 111, and the outer edges of the second diaphragm body 21 (or 22) have substantially the same shape and have one-to-one correspondence with each other. The frequency response characteristic of the diaphragm assembly can be changed by adjusting the shape and size of the first diaphragm body 11 and the second diaphragm body 21 (or 22) without changing the overall size of the diaphragm assembly.

The second diaphragm body 21 (or 22) may block the entire first hole 111, or may block only a partial region of the first hole 111. The projection of the second diaphragm body 21 (or 22) in the axial direction of the first diaphragm body 11 may have an overlapping portion with the first diaphragm body 11, or may have an overlapping portion only with the first hole 111. Fig. 26 is a schematic connection diagram of a diaphragm assembly according to an embodiment of the present invention. For example, in one embodiment, as shown in fig. 26, the outer contour of the second diaphragm body 21 (or 22) is larger than the size of the first hole 111, and the second diaphragm body 21 (or 22) can block the edge portion of the first hole 111. In another embodiment, referring to fig. 1-25, the outer contour of the second diaphragm body 21 (or 22) is smaller than the size of the first hole 111, and there is a certain gap between the second diaphragm body 21 (or 22) and the inner wall of the first hole 111 in the lateral direction, where the "lateral direction" refers to the direction perpendicular to the axis of the diaphragm assembly. That is, the projection of the second diaphragm body 21 (or 22) in the axial direction of the diaphragm assembly does not overlap with the solid portion of the first diaphragm body 11 (i.e., the portion composed of the diaphragm material).

The second diaphragm body may be a closed structure, and may also have a second hole 221. In this application, the term "closed structure" means having a complete surface, the area inside the outer contour being free of holes running through it in the axial direction. In one embodiment, referring to the three different diaphragm assemblies illustrated in fig. 1-5 and 11-19, the second diaphragm body 21 is a closed structure and corresponds in shape to the first aperture 111. In another embodiment, referring to two diaphragm assemblies shown in fig. 6-10 and 20-25, the second diaphragm body 22 has a second hole 221, and the second hole 221 is opened in the middle of the second diaphragm body 22 and penetrates through the second diaphragm body 22 along the axial direction of the second diaphragm body 22. The shape of the second hole 221 may be the same as the outer contour shape of the second diaphragm body 22, or may be configured in other shapes according to the expected acoustic performance of the diaphragm assembly.

Fig. 27 is a side view of a first diaphragm body according to an embodiment of the invention. Referring to fig. 1 to 27, in some embodiments, the first diaphragm body 11 includes an outer layer connecting portion 112, an inner layer connecting portion 113, and a corrugated rim 114 disposed between the outer layer connecting portion 112 and the inner layer connecting portion 113, that is, the outer layer connecting portion 112 is disposed around an outer side of the corrugated rim 114, and the corrugated rim 114 is disposed around an outer side of the inner layer connecting portion 113. The outer layer connection 112 serves to fix the diaphragm assembly to a device to which the diaphragm assembly is applied, for example to the frame 61 of a loudspeaker. The edge 114 (also called a dangling edge) is used to support the vibration of the diaphragm assembly so that the diaphragm assembly can move in the axial direction but not in the transverse direction, and the edge 114 may be a bent structure with a shape of an arc, a wave shape, or the like. The number of the corrugated rim 114 may be single, two or more. The number and bending direction of the folds 114 can be specifically set according to the expected acoustic performance of the diaphragm assembly. The outer layer connecting portion 112 may be substantially planar to facilitate fixing of the diaphragm assembly. The inner layer connecting portion 113 may be substantially planar, and the inner layer connecting portion 113 and the outer layer connecting portion 112 may be substantially on the same plane. The first middle patch panel 31 (or 32, or 33) is connected to the inner layer connecting portion 113. Optionally, the edge of the first middle patch 31 (or 32, or 33) does not exceed the edge of the inner layer connecting portion 113, and the fold ring is avoided.

The middle pasting plate can be made of materials with certain rigidity, such as metal sheets, hard polymer materials, composite plates and the like. The middle pasting plate is connected with the vibrating diaphragm body, so that the deformation of the vibrating diaphragm body in a high-frequency section can be reduced, and the quality of high frequency is guaranteed. In some embodiments, the middle pasting plate is an aluminum sheet, the aluminum sheet has high rigidity and is not easy to deform, and the aluminum is not a magnetic material, so that the influence on the magnetic induction of the voice coil is avoided, and the adverse effect on the vibration of the voice coil is avoided. The frequency response characteristic of the vibrating diaphragm component can be adjusted by adjusting the quality of the middle pasting board and selecting the middle pasting boards made of different materials.

The first diaphragm body 11 and the second diaphragm body 21 (or 22) may be attached to a certain position on the first intermediate attachment plate 31 (or 32, or 33) by an adhesive, an adhesive tape, or other connecting structures or connecting members, so that the first diaphragm body 11 and the second diaphragm body 21 (or 22) are firmly connected to the first intermediate attachment plate 31 (or 32, or 33). The first middle pasting plate 31 (or 32, or 33) has a first side surface and a second side surface opposite to each other, and the first diaphragm body 11 and the second diaphragm body 21 (or 22) may be connected to the same side surface of the first middle pasting plate 31 (or 32, or 33), or may be connected to different side surfaces of the first middle pasting plate 31 (or 32, or 33), and a suitable connection sequence may be selected according to the size of the space where the diaphragm assembly is disposed and the assembly manner. When the first middle flitch 31 (or 32, or 33) is flat with a uniform thickness, the first side surface is substantially parallel to the second side surface.

In one embodiment, referring to fig. 26, the first diaphragm body 11 is connected to the first side surface of the first middle patch 33, and the second diaphragm body 22 is connected to the second side surface of the first middle patch 33, so that the connection portion of the first diaphragm body 11 and the first middle patch 33 and the connection portion of the second diaphragm body 22 and the first middle patch 33 have a certain distance in the axial direction of the diaphragm assembly, and the first middle patch 33 separates the first diaphragm body 11 and the second diaphragm body 22 from each other in the axial direction.

In another embodiment, referring to fig. 1 to 25, the first diaphragm body 11 and the second diaphragm body 21 (or 22) are both connected to a first side surface of the first mid-plane 31 (or 32, or 33), or are both connected to a second side surface of the first mid-plane 31 (or 32, or 33). The first diaphragm body 11 and the second diaphragm body 21 (or 22) are located at substantially the same height position in the axial direction of the diaphragm assembly.

In some embodiments, referring to fig. 1-10, the first middle pasting board 31 (or 32) is a closed structure. The first middle patch panel 31 (or 32) completely blocks the first hole 111. The first intermediate pasting board 31 (or 32) may be substantially flat, or may have a recessed portion. ,

in one embodiment, referring to fig. 1 to 5, the first middle pasting plate 31 is substantially flat, and the second diaphragm body 22 may be a closed structure or may have a hole. The second diaphragm body 22 is attached to one side of the first middle attachment plate 31.

In one embodiment, referring to fig. 6-10, the first middle pasting plate 32 has a first concave portion 321 in the middle, the second diaphragm body 22 has a second hole 221, the position of the second hole 221 corresponds to the position of the first concave portion 321, and the size of the second hole 221 is adapted to the size of the edge of the first concave portion 321. The size of the second hole 221 may be the same as the size of the edge of the first recess 321, or larger than the edge of the first recess 321, such that the first recess 321 can be received in the second hole 221. The first recess 321 can make the middle frequency sensitivity of the diaphragm assembly smoother, so that the diaphragm assembly can obtain better sound performance during operation. The first recess 321 may be configured to extend high frequency, but when the first recess 321 is applied to a speaker, the performance of a magnetic circuit may be affected to some extent, and a person skilled in the art may select whether the first recess 321 is configured or not, or the shape and the depth of the first recess 321, according to the frequency response characteristics and the application scenario expected by the diaphragm assembly.

In some embodiments, referring to fig. 11-25, the middle patch panel further includes a second middle patch panel 41 (or 42, or 43). The first middle patch panel 33 has a third hole 331, and the second middle patch panel 41 (or 42, or 43) is disposed in the third hole 331. The second middle patch 41 (or 42, or 43) is connected to the second diaphragm body 21 (or 22) with a certain gap from the inner wall of the third hole 331. In some embodiments, the first diaphragm body 11, the first middle patch 33, the second diaphragm body 21 (or 22), and the second middle patch 41 (or 42, or 43) are disposed in this order from the outer side to the center of the diaphragm assembly. The lowest resonance frequency of the second diaphragm body 21 (or 22) can be adjusted by adjusting the rigidity of the second diaphragm body 21 (or 22), the mass of the second diaphragm body 21 (or 22) and the second mid-plane 41 (or 42, or 43), and the like. The provision of the second mid-plane plate 41 (or 42, or 43) may cause the diaphragm assembly to generate more resonance modes, thereby making the mid-frequency curve of the diaphragm assembly smoother.

The shape of the second mid-plane 41 (or 42, or 43) may match the shape of the second diaphragm body 21 (or 22) and the third hole 331. The outer contour dimension of the second middle patch 41 (or 42, or 43) may be smaller than the outer contour of the second diaphragm body 21 (or 22), and the edge of the second middle patch 41 (or 42, or 43) does not protrude beyond the outer edge of the second diaphragm body 21 (or 22). When the second diaphragm body 22 has the second hole 221, the size of the second middle patch 41 (or 42, or 43) should be adapted to the size of the second hole 221, so that the second middle patch 41 (or 42, or 43) can be firmly connected with the second diaphragm body 22. Since the second middle patch 41 (or 42 or 43) is connected to the second diaphragm body 21 (or 22), the size of the second middle patch 41 (or 42 or 43) is small, so that the resonance frequency of the second middle patch 41 (or 42 or 43) can be increased, sharp peaks and valleys at a high frequency part can be avoided, and the sound quality of the diaphragm assembly can be improved.

The material of the second middle patch 41 (or 42, or 43) may be the same as or different from that of the first middle patch, and may be selected according to the desired acoustic performance of the diaphragm assembly.

The second middle pasting board 41 (or 42, or 43) may be a closed structure, and may also have a fourth hole 431, which may be specifically designed according to the result of the acoustic performance simulation. By adjusting the shape of the second mid-plane 41 (or 42, or 43), the frequency response characteristics of the diaphragm assembly can be adjusted. In one embodiment, referring to fig. 11-15 and 20-25, the second mid-plane 41 (or 42) is a closed structure. In another embodiment, referring to the diaphragm assembly shown in fig. 16-19, the second middle pasting plate 43 has a fourth hole 431, the fourth hole 431 is opened in the middle of the second middle pasting plate 43, the second diaphragm body 21 is a closed structure, and after the second middle pasting plate 43 is connected with the second diaphragm body 21, the second diaphragm body 21 blocks the fourth hole 431.

In some embodiments, referring to fig. 20 to 25, the second middle pasting plate 42 has a second recess 421 in the middle, and the second diaphragm body 22 has a second hole 221. The position of the second hole 221 corresponds to the position of the second recess 421, and the size of the second hole 221 matches the size of the edge profile of the second recess 421. Specifically, the size of the second hole 221 may be the same as or larger than the edge profile of the second recess 421, so that the second recess 421 is received in the second hole 221. The second recess 421 can be extended for high frequency, but when the second recess 421 is applied to a speaker, the performance of a magnetic circuit may be affected to some extent, and a person skilled in the art can select whether the second recess 421 is provided or not, or the shape and the depth of the second recess 421, and other parameters according to the corresponding frequency characteristics and the application scenario desired by the diaphragm assembly.

The second diaphragm body 21 (or 22) has two opposite side surfaces, and the first middle pasting plate 33 and the second middle pasting plate 41 (or 42, or 43) may be connected to the same side surface of the second diaphragm body 21 (or 22) (refer to fig. 1-25), or may be connected to different side surfaces of the second diaphragm body 21 (or 22) (refer to fig. 26), which may be specifically selected according to factors such as the space size of the application scenario of the diaphragm assembly and the assembly sequence. In other words, the height positions of the first middle pasting board 33 and the second middle pasting board 41 (or 42, or 43) in the axial direction of the diaphragm assembly may be the same, or may be separated by a certain distance.

The diaphragm assembly in at least some embodiments of the present invention may be applied to an electroacoustic transducer device, and optionally, the diaphragm assembly may be applied to a speaker module. Fig. 28 and 29 are schematic structural views of a speaker module according to an embodiment of the present invention, and referring to fig. 28 and 29, the speaker module includes a frame 61, a magnetic circuit system 70, and a vibration system. The vibration system includes a voice coil 50 and at least one diaphragm assembly as previously described. The frame 61 is used for fixing and supporting the diaphragm assembly, specifically, the shape of the frame 61 is matched with the outer contour of the diaphragm assembly X, and the outer edge part of the diaphragm assembly X is fixedly connected with the frame 61. When the first diaphragm body 11 includes the outer layer connecting portion 112, the outer layer connecting portion 112 may be fixed on the frame 61 by bonding, crimping or other connecting methods, and the diaphragm assembly may maintain a certain tension. The magnetic circuit 70 is used for forming a magnetic field, and the voice coil 50 is disposed in the magnetic field formed by the magnetic circuit 70 and connected to the diaphragm assembly X. When the magnetic circuit system 70 receives an electrical signal containing sound information, a corresponding changing magnetic field is generated, and the voice coil 50 is driven by the changing magnetic field to reciprocate in the magnetic field along the axial direction, so as to drive the diaphragm assembly X to vibrate, and push air to generate sound waves.

In some embodiments, the speaker module includes a housing 60, the housing 60 has a sound guiding tube 62, an accommodating space is formed in the housing 60, and the diaphragm assembly X divides the accommodating space into a front cavity and a rear cavity. Wherein, sound guide tube 62 communicates with the front cavity, and the sound wave that produces when the vibrating diaphragm subassembly X vibrates propagates outside the speaker module from sound guide tube 62, and magnetic circuit 70 sets up in the back cavity. The tub support 61 is fixed in the housing 60, or the tub support 61 may be a part of the housing 60.

In the micro speaker module, due to the limitation of the system space configured by the speaker module, the sound guiding tube 62 is generally disposed in the lateral direction of the housing 60, that is, the sound guiding tube 62 is disposed in the lateral direction of the diaphragm assembly X and forms a certain included angle (for example, 90 °) with the axial direction of the diaphragm assembly X, and when the diaphragm assembly X vibrates, the air in the front cavity is pushed to flow out from the guiding tube to form a side sound. The sound that the speaker module produced produces a comparatively sharp peak at the intermediate frequency because of the resonance with the front chamber, influences people's sense of hearing greatly. In a comparative technical solution, although the problem of sharp peaks and valleys at the mid-frequency can be effectively improved by adding the acoustic resonant cavity communicated with the front cavity, the overall size of the speaker module is inevitably increased. With the diaphragm assembly according to at least some embodiments of the present invention, by adjusting parameters such as the rigidity of the second diaphragm body 21 (or 22), the mass of the second diaphragm body 21 (or 22), and/or the second mid-plane 41 (or 42, or 43) when the diaphragm assembly has the second mid-plane, it is ensured that the lowest resonance frequency of the second diaphragm is near the resonance frequency of the front cavity, so that the mid-frequency curve of the diaphragm assembly is smoother due to the two resonance peaks. Compared with the addition of an additional acoustic resonant cavity, the diaphragm assembly in the embodiment of the invention does not occupy additional space, thereby being beneficial to the miniaturization of a loudspeaker module.

Fig. 30 is a graph comparing simulation results of acoustic performance of the speaker module according to the embodiment of the present invention and a conventional speaker module without using the diaphragm assembly according to the embodiment of the present invention. In fig. 30, the vertical coordinate represents the Sound Pressure Level (SPL), the horizontal coordinate represents the frequency, the solid line reflects the frequency response characteristic of the conventional speaker module, and the dotted line reflects the frequency response characteristic of the speaker module of the embodiment of the present invention. As can be seen from the comparison between the two curves in fig. 30, the diaphragm assembly according to the embodiment of the present invention makes the middle frequency sensitivity of the speaker module according to the embodiment of the present invention smoother, the low frequency sensitivity is not affected, and meanwhile, no sharp peak or valley occurs in the high frequency portion, so that the hearing of people can be improved effectively.

The speaker module in at least some embodiments of the invention may be applied to an electronic device. In this application, the electronic device may be any electronic device having a sound production requirement, including but not limited to a headset, a sound box, a mobile phone, a computer, a game machine, and the like.

The embodiment of the invention provides a vibrating diaphragm assembly, a loudspeaker module and electronic equipment, wherein the vibrating diaphragm assembly comprises a vibrating diaphragm body and a middle pasting plate, the vibrating diaphragm body comprises a first vibrating diaphragm body and a second vibrating diaphragm body, the first vibrating diaphragm body is provided with a first hole, the middle pasting plate comprises a first middle pasting plate, the second vibrating diaphragm body at least partially shields the first hole, and the first middle pasting plate is respectively connected with the first vibrating diaphragm body and the second vibrating diaphragm body; through setting up first well flitch to enclosed construction, or well flitch includes the second in the flitch and makes the second in flitch and this body coupling of second vibrating diaphragm for the intermediate frequency and the high frequency curve of speaker module are more level and smooth, improve medium and high frequency tone quality effectively, and simultaneously, the compact structure of vibrating diaphragm subassembly also need not set up extra acoustics resonant cavity in the speaker module, is favorable to speaker module and electronic equipment's miniaturization.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.