CN218103493U - Sound unit and sound module - Google Patents

Abstract

The utility model discloses a sound production unit and sound production module, sound production unit include the basin frame and locate the vibration subassembly on the basin frame, and vibration subassembly includes vibrating diaphragm subassembly, voice coil loudspeaker voice coil and supporting component, and the voice coil loudspeaker voice coil is connected with vibrating diaphragm subassembly and supporting component respectively, and supporting component includes continuous centering piece and counter film, and counter film includes consecutive interior fixed part, book ring portion and outer fixed part, rolls over the region that ring portion is close to outer fixed part and has towards keeping away from the convex bulge of centering piece direction. Among this sound generating unit, have the bulge that corresponds the regional setting of warping great on the centring disk on the collapsible portion of auxiliary membrane, can increase the distance that warp great region on auxiliary membrane and the centring disk on the sound generating unit vibration direction to avoid sound generating unit to collide and cause sound generating unit noise to appear at the in-process auxiliary membrane of work and centring disk, do benefit to the performance of guaranteeing sound generating unit, reduce the auxiliary membrane risk of rupture, extension sound generating unit's life.

Description

Sound unit and sound module

technical field

The utility model relates to the technical field of electroacoustic transducers, in particular to a sounding unit and a sounding module.

Background technique

As a device that converts electrical energy into sound energy, the sound generating unit has been widely used in microelectronic devices such as smart phones, camcorders, cameras, and notebook computers. As microelectronic devices become thinner and thinner and the requirements for sound quality and loudness are higher and higher, the height requirements for the sounding unit are also thinner and the amplitude requirements are also larger.

At present, it is common in the industry to improve the sound quality and loudness of the sounding unit by increasing the amplitude. In the existing technology, the solution for increasing the amplitude is: adding a centering piece and a secondary film to suppress the polarization of the voice coil, thereby achieving the effect of increasing the amplitude. The auxiliary membrane includes an internal fixing part, a deformation part and an external fixing part which are connected in sequence. However, when the amplitude of the sounding unit is large, the deformation part of the auxiliary membrane is likely to collide with the damper, thereby generating noise, and at the same time, the long-term Collision will even cause the secondary membrane to rupture, affecting the life of the sound unit.

Utility model content

The technical problem to be solved by the utility model is: to provide a sounding unit capable of improving the collision between the secondary membrane and the centering strut, and a sounding module with the sounding unit.

In order to solve the above-mentioned technical problems, the technical solution adopted by the utility model is: the sounding unit includes a pot frame and a vibrating component arranged on the pot frame, the vibrating component includes a diaphragm component, a voice coil and a supporting component, and the The voice coil is respectively connected to the diaphragm assembly and the support assembly, the support assembly includes a connected centering strut and a secondary membrane, and the secondary membrane includes an internal fixing part, a ring part and an external fixing part connected in sequence A region of the collar portion close to the external fixing portion has a protruding portion protruding away from the damper.

Further, the damper includes an inner installation part, a cantilever part and an outer installation part connected in sequence, the inner installation part is connected with the inner fixing part, the outer installation part is connected with the outer fixing part, The protruding portion is disposed corresponding to the cantilever portion.

Further, the ring part includes a connected first part and a second part, the first part is connected to the inner fixing part, and the second part is located outside the first part and connected to the outer fixing part part, the protruding part is located on the second part.

Further, the protruding portion occupies the entire area of the second portion.

Further, the protruding part occupies a partial area of the second part, and the protruding part is arranged corresponding to one end of the cantilever part connected to the inner mounting part.

Further, the protruding part is connected to one side of the second part.

Further, the protruding degree of the protruding part gradually decreases from the side of the second part connected to the protruding part toward the other side of the second part.

Further, the secondary membrane is located above or below the damper.

Further, the protruding part is provided with reinforcing patterns.

In order to solve the above-mentioned technical problems, the utility model also adopts the following technical solutions: the sounding module includes the above-mentioned sounding unit.

The beneficial effect of the utility model is that: in the sounding unit, the ring part of the auxiliary membrane has a protrusion corresponding to the larger deformation area on the centering strut, which can increase the relationship between the auxiliary membrane and the centering in the vibration direction of the sounding unit. The distance of the larger deformed area on the support piece can avoid the collision between the secondary membrane and the centering support piece during the working process of the sounding unit, which will cause noise in the sounding unit, which is beneficial to ensure the performance of the sounding unit, reduce the risk of secondary membrane rupture, and prolong the sound. unit lifespan.

Description of drawings

Fig. 1 is the exploded view of the sounding unit of Embodiment 1 of the present utility model;

Fig. 2 is a structural schematic diagram of the sound unit of Embodiment 1 of the present utility model;

Fig. 3 is an oblique sectional view of the sounding unit of Embodiment 1 of the present invention;

Fig. 4 is an enlarged view of detail A in Fig. 3;

Fig. 5 is a schematic structural diagram of the sounding unit of the second embodiment of the present invention.

Label description:

1. Pot frame;

2. Magnetic circuit components;

3. Voice coil;

4. Sound film;

5. Mid-post;

6. Centering strut; 61. Inner installation part; 62. Cantilever part; 63. Outer installation part;

7. Secondary membrane; 71. Internal fixation part; 72. Surrounding ring part; 721. First part; 722. Second part; 73. External fixation part; 74. Protruding part.

detailed description

In order to describe the technical content, the achieved purpose and the effect of the present utility model in detail, the following will be described in conjunction with the embodiments and accompanying drawings.

Please refer to Fig. 1 to Fig. 5, the sounding unit includes a pot frame 1 and a vibrating assembly arranged on the pot frame 1, and the vibrating assembly includes a diaphragm assembly, a voice coil 3 and a support assembly, and the voice coil 3 is respectively connected to the The diaphragm assembly is connected to the support assembly, the support assembly includes a connected centering strut 6 and a secondary membrane 7, and the secondary membrane 7 includes an internal fixing part 71, a ring part 72 and an external fixing part connected in sequence 73 , the area of the collar portion 72 close to the outer fixing portion 73 has a protruding portion 74 protruding away from the damper 6 .

As can be seen from the above description, the beneficial effect of the present invention is that: in the sounding unit, the ring portion 72 of the secondary membrane 7 has a protruding portion 74 corresponding to the larger deformed area of the damper 6, which can increase the The distance between the secondary membrane 7 and the deformed area on the strut 6 in the vibration direction of the sounding unit, so as to avoid the collision between the secondary membrane 7 and the strut 6 during the working process of the sounding unit, which will cause noise in the sounding unit, which is beneficial Ensure the performance of the sounding unit, reduce the risk of secondary membrane 7 rupture, and prolong the service life of the sounding unit.

Further, the damper 6 includes an inner mounting portion 61, a cantilever portion 62 and an outer mounting portion 63 connected in sequence, the inner mounting portion 61 is connected to the inner fixing portion 71, and the outer mounting portion 63 is connected to the inner fixing portion 71. The external fixing parts 73 are connected to each other, and the protruding part 74 is disposed corresponding to the cantilever part 62 .

It can be known from the above description that the cantilever portion 62 of the damper 6 deforms to a relatively large degree, and the arrangement of the protruding portion 74 corresponding to the cantilever portion 62 can effectively improve the collision between the damper 6 and the secondary membrane 7 .

Further, the ring portion 72 includes a connected first portion 721 and a second portion 722, the first portion 721 is connected to the internal fixing portion 71, and the second portion 722 is located at the edge of the first portion 721. The outer side is connected to the outer fixing part 73 , and the protruding part 74 is located on the second part 722 .

Further, the protruding portion 74 occupies the entire area of the second portion 722 .

Further, the protruding portion 74 occupies a partial area of the second portion 722 , and the protruding portion 74 is disposed corresponding to one end of the cantilever portion 62 connected to the inner mounting portion 61 .

It can be known from the above description that there are various forms of disposing the protruding portion 74 on the ring portion 72, which can be selected as required.

Further, the protruding portion 74 is connected to one side of the second portion 722 .

Further, the protruding degree of the protruding portion 74 gradually decreases from the side of the second portion 722 connected to the protruding portion 74 toward the other side of the second portion 722 .

It can be known from the above description that the specific structures of the protruding portion 74 are various, which is beneficial to enrich the diversity of the sounding units.

Further, the secondary membrane 7 is located above or below the damper 6 .

Further, the protruding portion 74 is provided with reinforcing patterns.

It can be seen from the above description that the reinforcing patterns include but not limited to reinforcing ribs, reinforcing grooves and the like. The setting of the reinforcing pattern can enhance the strength of the auxiliary film 7, so that the support component can more effectively suppress the polarization phenomenon of the vibration component. Risk of collision with damper 6.

The sounding module includes the above-mentioned sounding unit.

Embodiment one

Please refer to FIG. 1 to FIG. 4 , the first embodiment of the present invention is: a sound emitting module, which can be applied to electronic devices capable of emitting sound, such as smart phones, camcorders, cameras, and notebook computers. The sounding module includes a module casing and a sounding unit disposed in the module casing. It is easy to understand that in some actual products, the structure of the electronic device (such as the casing) can be used as the module casing.

The sounding unit includes a pot frame 1 and a vibration assembly and a magnetic circuit assembly 2 respectively arranged on the pot frame 1. The vibration assembly includes a diaphragm assembly, a voice coil 3 and a support assembly. The voice coil 3 is connected to the The diaphragm assembly is connected to the support assembly, and the basin frame 1 is connected to the diaphragm assembly and the support assembly respectively; the support assembly includes a connected spider 6 and a secondary membrane 7, and the secondary membrane 7 includes an inner fixing part 71, a ring part 72 and an outer fixing part 73 connected in sequence, and the spider 6 includes an inner installation part 61, a cantilever part 62 and an outer installation part 63 connected in sequence, and the inner installation part 61 is connected to the inner fixing part 71, the outer mounting part 63 is connected to the outer fixing part 73, and the area of the ring part 72 close to the outer fixing part 73 has a direction away from the damper 6 The protruding portion 74 protrudes in the direction, and the protruding portion 74 is arranged corresponding to the cantilever portion 62 . The diaphragm assembly includes a connected sound diaphragm 4 and a middle sticker 5 , and in other embodiments, it is also feasible not to set the middle sticker 5 .

As shown in Figure 2 and Figure 4, in detail, the ring part 72 includes a connected first part 721 and a second part 722, the first part 721 is connected to the internal fixing part 71, and the second part 722 is located on the outside of the first part 721 and connected to the outer fixing part 73 , and the protruding part 74 is located on the second part 722 . In this embodiment, the protruding portion 74 occupies the entire area of the second portion 722 , that is, the entire second portion 722 is the protruding portion 74 .

The secondary membrane 7 is located above or below the damper 6 . When the secondary membrane 7 is located above the damper 6, the inner fixing part 71 is connected to the voice coil 3, the outer fixing part 73 is connected to the frame 1, and the protruding part 74 Protrudes towards the direction of the diaphragm assembly; as shown in Figure 3 and Figure 4, when the secondary diaphragm 7 is located under the damper 6, the inner mounting part 61 is connected to the voice coil 3. The outer mounting part 63 is connected to the basin frame 1, and the protruding part 74 protrudes in a direction away from the diaphragm assembly.

In order to further reduce the risk of collision between the protruding portion 74 and the damper 6 , reinforcing patterns are provided on the protruding portion 74 . Certainly, other areas on the ring portion 72 may also be provided with reinforcing patterns.

Embodiment two

Please refer to FIG. 5 , the second embodiment of the present invention is a parallel technical solution of the first embodiment, and the difference from the first embodiment is that the protruding part 74 does not occupy the entire area of the second part 722 .

Specifically, the protruding portion 74 occupies a partial area of the second portion 722 , and the protruding portion 74 is disposed corresponding to one end of the cantilever portion 62 connected to the inner mounting portion 61 . In this embodiment, when looking up at the sound generating unit, the end of the cantilever portion 62 connected to the inner mounting portion 61 is located outside the coverage area of the secondary film 7, and the protruding portion 74 is connected to the second portion 722 , which is the side of the second portion 722 close to the end of the cantilever portion 62 connected to the inner mounting portion 61 .

Optionally, the protruding degree of the protruding portion 74 gradually decreases from the side of the second portion 722 connected to the protruding portion 74 toward the other side of the second portion 722 .

To sum up, in the sounding unit and the sounding module provided by the utility model, the ring portion of the sub-membrane in the sounding unit has a protruding part corresponding to the larger deformation area on the centering strut, which can increase the vibration of the sounding unit The distance between the sub-membrane and the deformed area on the centering strut in the direction, so as to avoid the collision between the sub-membrane and the centering strut during the working process of the sounding unit, which will cause noise in the sounding unit, which is conducive to ensuring the performance of the sounding unit and reducing the noise. The risk of secondary membrane rupture prolongs the service life of the sound unit.

The above is only an embodiment of the utility model, and does not limit the patent scope of the utility model. All equivalent transformations made by using the utility model specification and accompanying drawings, or directly or indirectly used in related technical fields, are all the same. The theory is included in the patent protection scope of the present utility model.

Claims (10)

1. sounding unit, it is characterized in that: comprise basin frame and be located at the vibrating assembly on described basin frame, described vibrating assembly comprises diaphragm assembly, voice coil and support assembly, described voice coil is connected with described diaphragm assembly respectively connected with the support assembly, the support assembly includes a connected spider and a secondary membrane, and the secondary membrane includes an internal fixing part, a ring part and an external fixing part connected in sequence, and the ring part is close to the The region of the outer fastening has a projection that projects away from the damper. 2. The sounding unit according to claim 1, characterized in that: the damper comprises an inner installation part, a cantilever part and an outer installation part connected in sequence, the inner installation part is connected with the inner fixing part, The outer mounting part is connected to the outer fixing part, and the protruding part is arranged corresponding to the cantilever part. 3. The sound generating unit according to claim 2, characterized in that: the ring part comprises a first part connected to a second part, the first part is connected to the internal fixing part, and the second part is located at The outer side of the first part is connected to the outer fixing part, and the protruding part is located on the second part. 4. The sound generating unit according to claim 3, wherein the protruding portion occupies the entire area of the second portion. 5. The sound unit according to claim 3, characterized in that: the protruding part occupies a partial area of the second part, and the protruding part is set corresponding to one end of the cantilever part connected to the inner mounting part . 6. The sound generating unit according to claim 5, wherein the protruding portion is connected to one side of the second portion. 7. The sound unit according to claim 6, characterized in that: the protruding degree of the protruding part is from the side of the second part connecting the protruding part to the other side close to the second part direction gradually decreases. 8. The sound generating unit according to claim 1, wherein the secondary membrane is located above or below the damper. 9. The sound generating unit according to claim 1, characterized in that: the protruding portion is provided with reinforcing patterns. 10. The sounding module, characterized in that it comprises the sounding unit according to any one of claims 1-9.

Images