CN218850959U

CN218850959U - Miniature speaker module

Info

Publication number: CN218850959U
Application number: CN202120815292.XU
Authority: CN
Inventors: 张俊利; 谢启强; 董如良
Original assignee: Yiyang Xinwei Acoustic Technology Co Ltd
Current assignee: Yiyang Xinwei Acoustic Technology Co Ltd
Priority date: 2021-04-20
Filing date: 2021-04-20
Publication date: 2023-04-11
Anticipated expiration: 2031-04-20

Abstract

The utility model discloses a miniature speaker module, speaker monomer in including the shell body and locating the shell body, the speaker monomer will antechamber and back chamber are separated into to the inner chamber of shell body, be equipped with the intercommunication on the shell body the windowing of back chamber, be equipped with passive vibration subassembly in windowing, the department of windowing still is equipped with the screen cloth, the screen cloth is located the outside of passive vibration subassembly. The position of windowing has the screen cloth that sets up corresponding to passive vibration subassembly, can adjust the acoustic resistance of passive vibration subassembly through the aperture of adjustment screen cloth, and then reaches the purpose of adjusting and optimizing miniature speaker module low frequency response performance. In addition, the existence of screen cloth can also play the effect of protection passive vibration subassembly, avoids passive vibration subassembly to take place to contact with other parts in use or assembling process and causes flexible vibrating piece impaired or break, and then influences product property ability and life-span.

Description

Miniature speaker module

Technical Field

The utility model relates to an electroacoustic transducer technical field especially relates to a miniature speaker module.

Background

The micro speaker module is widely applied to portable electronic equipment such as mobile phones, notebook computers, hearing aids and the like. The current speaker design generally adopts the sound membrane as vibrating element to urge the air sound production, owing to receive the restriction of sound membrane vibration area and vibration amplitude, the low frequency response of current speaker product is not enough, leads to the sense of hearing not good.

For solving this problem, prior art selects to set up passive vibration subassembly in the sealed back chamber of miniature speaker module, passive vibration subassembly is including vibrating diaphragm and the vibration board that links to each other, speaker module during operation, the free sound membrane reciprocating vibration of speaker can cyclic compression, the air of the sealed back intracavity of stretching, place passive vibration subassembly on sealed back chamber corresponds the casing and can vibrate the sound production along with the change of sealed back intracavity air pressure, and then compensate the low frequency response of speaker module product, reach the low frequency performance that improves the speaker, optimize the purpose of listening sensation.

Although the setting of passive vibration subassembly can compensate the low frequency response of speaker module to a certain extent, because be difficult to adjust the acoustic resistance of passive vibration subassembly, the effect of the low frequency compensation of passive vibration subassembly is often poor in the people's mind.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the technical problem that will solve is: a micro speaker module capable of adjusting low frequency response is provided.

In order to solve the technical problem, the utility model discloses a technical scheme be: the utility model provides a miniature speaker module, includes the shell body and locates the speaker monomer in the shell body, the speaker monomer will ante-chamber and back chamber are separated into to the inner chamber of shell body, be equipped with the intercommunication on the shell body the windowing of back chamber, be equipped with passive vibration subassembly in the windowing, the department of windowing still is equipped with the screen cloth, the screen cloth is located the outside of passive vibration subassembly.

Furthermore, one end of the windowing part close to the rear cavity is provided with a step part, and the passive vibration assembly is fixed on the step part.

Furthermore, the screen cloth is arranged at one end, far away from the rear cavity, of the windowing part.

Further, the mesh cloth is tightly attached to the outer surface of the outer shell.

Furthermore, one end of the windowing part close to the rear cavity is provided with an inward extending part extending into the rear cavity, and the inward extending part is connected with the step part.

Further, the screen cloth is bonded or connected with the outer shell in a hot melting mode.

Further, the passive vibration assembly comprises a vibration film and a vibration plate arranged on the vibration film.

Further, the shell body comprises an upper shell and a lower shell which are connected, and the window is arranged on the lower shell.

Further, the upper shell and the lower shell are connected by gluing or welded by ultrasonic waves.

The beneficial effects of the utility model reside in that: the position of windowing has the screen cloth that sets up corresponding to passive vibration subassembly, can adjust the acoustic resistance of passive vibration subassembly through the aperture of adjustment screen cloth, and then reaches the purpose of adjusting and optimizing miniature speaker module low frequency response performance. In addition, the existence of screen cloth can also play the effect of protection passive vibration subassembly, avoids passive vibration subassembly to take place to contact with other parts in use or assembling process and causes flexible vibrating piece impaired or break, and then influences product property ability and life-span.

Drawings

Fig. 1 is an exploded view of a micro speaker module according to an embodiment of the present invention;

fig. 2 is a partial cross-sectional view of a micro speaker module according to an embodiment of the present invention.

Description of reference numerals:

1. an outer housing; 11. an upper shell; 12. a lower case;

2. a passive vibrating assembly; 21. a vibrating membrane; 22. a vibrating plate;

3. mesh cloth;

4. a step portion;

5. an inward extending portion.

Detailed Description

In order to explain the technical content, the objects and the effects of the present invention in detail, the following description is made with reference to the accompanying drawings in combination with the embodiments.

Please refer to fig. 1 and fig. 2, a miniature speaker module, includes shell body 1 and locates the speaker monomer in shell body 1, the speaker monomer will anterior chamber and back chamber are separated into to the inner chamber of shell body 1, be equipped with the intercommunication on the shell body 1 the windowing in back chamber, be equipped with passive vibration subassembly 2 in the windowing, the department of windowing still is equipped with screen cloth 3, screen cloth 3 is located the outside of passive vibration subassembly 2.

From the above description, the beneficial effects of the present invention are: the acoustic resistance of the passive vibration component 2 can be adjusted through adjusting the aperture of the mesh cloth 3, and then the purpose of adjusting and optimizing the low-frequency response performance of the miniature loudspeaker module is achieved. In addition, the existence of the screen cloth 3 can also play a role in protecting the passive vibration component 2.

Furthermore, one end of the window close to the rear cavity is provided with a step part 4, and the passive vibration component 2 is fixed on the step part 4.

As can be seen from the above description, the presence of the step portion 4 facilitates the mounting and fixing of the passive vibration component 2.

Further, the screen cloth 3 is arranged at one end, far away from the rear cavity, of the windowing part.

As can be seen from the above description, the mesh 3 and the passive vibration component 2 have a certain distance therebetween, so as to leave a larger vibration space for the passive vibration component 2.

Further, the mesh 3 is tightly attached to the outer surface of the outer shell 1.

As can be seen from the above description, the assembling personnel can conveniently connect and fix the mesh cloth 3 with the outer shell 1.

Furthermore, one end of the windowing part close to the rear cavity is provided with an inner extending part 5 extending into the rear cavity, and the inner extending part 5 is connected with the step part 4.

It can be known from the above description that the existence of endotaxy portion 5 can increase the interval between screen cloth 3 and the passive vibration subassembly 2 to make passive vibration subassembly 2 possess bigger vibration space, thereby improve the acoustics performance of miniature speaker module.

Further, the mesh 3 is bonded or hot-melted with the outer shell 1.

As can be seen from the above description, the mesh 3 and the outer shell 1 have various connection forms, and the manufacturer can select the connection form according to the requirement.

Further, the passive vibration module 2 includes a vibration film 21 and a vibration plate 22 provided on the vibration film 21.

As can be seen from the above description, the passive vibration component 2 is simple and stable in structure.

Further, the outer casing 1 includes an upper casing 11 and a lower casing 12 connected to each other, and the window is provided on the lower casing 12.

Further, the upper case 11 and the lower case 12 are adhesively bonded or ultrasonically welded.

As can be seen from the above description, the specific connection manner of the upper case 11 and the lower case 12 can be set as desired.

Example one

Referring to fig. 1 and fig. 2, a first embodiment of the present invention is: a micro speaker module can be applied to portable electronic equipment such as mobile phones, notebook computers, hearing aids and the like.

The micro speaker module comprises an outer shell 1 and a speaker monomer arranged in the outer shell 1, wherein the inner cavity of the outer shell 1 is divided into a front cavity and a rear cavity by the speaker monomer, a window communicated with the rear cavity is arranged on the outer shell 1, a passive vibration component 2 is arranged in the window, a mesh 3 used for adjusting the acoustic resistance of the passive vibration component 2 is further arranged at the window opening position, the mesh 3 is positioned on the outer side of the passive vibration component 2, and in the embodiment, the passive vibration component 2 comprises a vibration membrane 21 and a vibration plate 22 arranged on the vibration membrane 21; the outer shell 1 comprises an upper shell 11 and a lower shell 12 which are connected, the windowing part is arranged on the lower shell 12, and optionally, the upper shell 11 and the lower shell 12 are connected through glue.

In order to facilitate the installation of the passive vibration component 2, one end of the windowing cavity close to the rear cavity is provided with a step part 4, and the passive vibration component 2 is fixed on the step part 4.

In order to increase the vibration space of the passive vibration component 2 and further optimize the acoustic performance of the miniature loudspeaker module, one end of the windowing part close to the rear cavity is provided with an inner extending part 5 extending into the rear cavity, and the inner extending part 5 is connected with the step part 4. Optionally, the inward extending portion 5 is integrally ring-shaped.

The screen cloth 3 is arranged at one end, far away from the rear cavity, of the windowing window, and preferably, the screen cloth 3 is tightly attached to the outer surface of the outer shell 1. Optionally, the mesh 3 is bonded or hot-melted with the outer shell 1.

Example two

Referring to fig. 1 and fig. 2, a second embodiment of the present invention is: a micro speaker module can be applied to portable electronic equipment such as mobile phones, notebook computers, hearing aids and the like.

The micro speaker module comprises an outer shell 1 and a speaker monomer arranged in the outer shell 1, wherein the speaker monomer divides an inner cavity of the outer shell 1 into a front cavity and a rear cavity, a window communicated with the rear cavity is arranged on the outer shell 1, a passive vibration component 2 is arranged in the window, a mesh 3 is further arranged at the window opening position, and the mesh 3 is positioned at the outer side of the passive vibration component 2; the outer shell 1 comprises an upper shell 11 and a lower shell 12 which are connected, the window is arranged on the lower shell 12, and optionally, the upper shell 11 and the lower shell 12 are welded through ultrasonic waves.

In order to facilitate the installation of the passive vibration component 2, one end of the windowing part close to the rear cavity is provided with a step part 4, and the passive vibration component 2 is fixed on the step part 4.

For the vibration space of the increased passive vibration assembly 2, the acoustic performance of the miniature loudspeaker module is further optimized, one end of the windowing part close to the rear cavity is provided with an inner extending part 5 extending into the rear cavity, and the inner extending part 5 is connected with the step part 4. Optionally, the inward extending portion 5 is integrally ring-shaped.

To sum up, the utility model provides a micro loudspeaker module, its department of windowing has the screen cloth that corresponds to the passive vibration subassembly and sets up, can adjust the acoustic resistance of passive vibration subassembly through the aperture of adjustment screen cloth, and then reaches the purpose of adjusting optimization micro loudspeaker module low frequency response performance. In addition, the existence of screen cloth can also play the effect of protection passive vibration subassembly, avoids passive vibration subassembly to take place to contact with other parts in use or assembling process and causes flexible vibrating piece impaired or break, and then influences product property ability and life-span. The arrangement of the inward extending part at the window can effectively increase the vibration space of the passive vibration component, and further improve the acoustic performance of the micro-speaker module.

The above mentioned is only the embodiment of the present invention, and not the limitation of the patent scope of the present invention, all the equivalent transformations made by the contents of the specification and the drawings, or the direct or indirect application in the related technical field, are included in the patent protection scope of the present invention.

Claims

1. The utility model provides a miniature speaker module, includes the shell body and locates the speaker monomer in the shell body, the speaker monomer will antechamber and back chamber are separated into to the inner chamber of shell body, be equipped with the intercommunication on the shell body the windowing of back chamber, be equipped with passive vibration subassembly, its characterized in that in the windowing: and a mesh cloth is further arranged at the windowing position and is positioned on the outer side of the passive vibration component.

2. The micro-speaker module of claim 1, wherein: one end of the window close to the rear cavity is provided with a step part, and the passive vibration assembly is fixed on the step part.

3. The micro-speaker module of claim 2, wherein: the screen cloth is arranged at one end, far away from the rear cavity, of the windowing part.

4. The micro-speaker module of claim 3, wherein: the screen cloth is tightly attached to the outer surface of the outer shell.

5. The micro-speaker module of claim 2, wherein: one end of the windowing part, which is close to the rear cavity, is provided with an inner extending part extending into the rear cavity, and the inner extending part is connected with the step part.

6. The micro-speaker module of claim 1, wherein: the mesh cloth is bonded with the outer shell or is in hot-melt connection with the outer shell.

7. The micro-speaker module of claim 1, wherein: the passive vibration component comprises a vibration film and a vibration plate arranged on the vibration film.

8. The micro-speaker module of claim 1, wherein: the shell body comprises an upper shell and a lower shell which are connected, and the window is arranged on the lower shell.

9. The micro-speaker module as recited in claim 8, wherein: the upper shell and the lower shell are connected by gluing or welded by ultrasonic waves.