CN216531777U - Loudspeaker monomer, loudspeaker module and electronic equipment - Google Patents

Abstract

The utility model provides a speaker monomer, speaker module and electronic equipment. The speaker unit includes: the vibration module comprises a vibration film; the support comprises a body part and a rear cavity part, the vibration module is arranged on the body part, a sound production space is formed between the vibrating diaphragm and the body part, the rear cavity part is connected with the body part and is located at the rear side of the vibrating diaphragm, a rear cavity is formed in the rear cavity part, and the rear cavity is communicated with the sound production space through a first through hole. The loudspeaker monomer provided by the disclosure has the advantages that the rear cavity part is arranged on the bracket of the loudspeaker monomer to form the rear cavity, the shape is regular, the mounting structure and the mounting process can be simplified, and the assembly efficiency is improved.

Description

Loudspeaker monomer, loudspeaker module and electronic equipment

Technical Field

The disclosure relates to the technical field of electronic equipment, in particular to a loudspeaker monomer, a loudspeaker module and electronic equipment.

Background

An independent rear cavity in a TWS (True Wireless Stereo) earphone is surrounded by a loudspeaker single body, an isolation bracket and a front shell, and the shape of the independent rear cavity is irregular, the installation process is complex, and the consumed time is long.

Disclosure of Invention

In order to overcome the problem that exists among the correlation technique, this disclosure provides a speaker monomer and speaker module, reduction in production cost improves production efficiency.

According to a first aspect of the embodiments of the present disclosure, there is provided a speaker unit, including:

the vibration module comprises a vibration film;

the support comprises a body part and a rear cavity part, the vibration module is arranged on the body part, a sound production space is formed between the vibrating diaphragm and the body part, the rear cavity part is connected with the body part and is located at the rear side of the vibrating diaphragm, a rear cavity is formed in the rear cavity part, and the rear cavity is communicated with the sound production space through a first through hole.

In one embodiment, the rear cavity comprises:

a first side wall extending rearward from an outer edge of the body portion;

the second side walls are positioned at two ends of the first side wall and formed by extending the rear side surface of the body part backwards, and the first side wall, the second side wall and the body part are enclosed to form a cavity with a rear side opening;

the cover body closes the rear opening so as to form the rear cavity by being surrounded by the first side wall, the second side wall and the body part.

In one embodiment, the cover is provided with a filling material inlet.

In one embodiment, the speaker unit includes:

the filling material is arranged in the rear cavity and comprises tuning particles and/or radiating particles.

In one embodiment, a second through hole is provided in the rear cavity portion, and the second through hole is used for communicating the rear cavity with the outside.

In one embodiment, the speaker unit includes:

and the first ventilation isolating piece covers the second through hole.

In one embodiment, the speaker unit includes:

and the second ventilation isolating piece covers the first through hole.

In one embodiment, the body portion includes a first bracket, a second bracket, and a connecting structure connecting the first bracket and the second bracket;

the diaphragm is arranged on the first support, and the rear cavity part is connected with the first support, the second support and/or the connecting structure.

According to a second aspect of the embodiments of the present disclosure, there is provided a speaker module including:

a housing;

the speaker unit as described above, the speaker unit being disposed within the housing.

According to a third aspect of the embodiments of the present disclosure, there is provided an electronic device including the speaker unit or the speaker module as described above.

The technical scheme provided by the embodiment of the disclosure can have the following beneficial effects: the loudspeaker monomer provided by the disclosure has the advantages that the rear cavity part is arranged on the bracket of the loudspeaker monomer to form the rear cavity, the shape is regular, the mounting structure and the mounting process can be simplified, and the assembly efficiency is improved.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.

Fig. 1 is a schematic structural diagram of a speaker cell shown in accordance with an exemplary embodiment;

fig. 2 is a schematic view of an internal structure of a speaker unit shown according to an exemplary embodiment;

FIG. 3 is an enlarged schematic view of section A of FIG. 2;

FIG. 4 is a schematic structural view of a stent shown in accordance with an exemplary embodiment;

fig. 5 is a schematic structural diagram of a cover shown according to an exemplary embodiment.

Detailed Description

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the exemplary embodiments below are not intended to represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.

In the related art, a rear cavity needs to be arranged in a TWS (True Wireless Stereo) earphone to improve the sound quality, and meanwhile, the sealing performance of the rear cavity needs to be ensured. The rear cavity often needs to be enclosed by a front shell of the earphone, a loudspeaker single body and a rear cavity isolation support, and the formed rear cavity is irregular in structure. The rear cavity isolation support is complex in structure, complex and time-consuming in production and installation process, high in production cost and difficult to ensure the installation tightness of the rear cavity isolation support.

Generally, the rear cavity isolation support needs to be glued and installed to guarantee the leakproofness, but the gluing process is complicated and time-consuming, and meanwhile, independent equipment is needed to test the leakproofness of the rear cavity to guarantee the gluing and installing quality. If the glue is not dispensed in place, the back cavity can generate air leakage, and the product performance is seriously influenced.

The utility model provides a loudspeaker unit, including vibration module and support, the support includes this somatic part and back cavity portion, forms the sound production space between this somatic part and the vibrating diaphragm of vibration module, and back cavity portion forms the back cavity, and this back cavity intercommunication sound production space is located the different sides in sound production space with the vibrating diaphragm. According to the loudspeaker, the independent rear cavity is formed on the bracket of the loudspeaker body, the shape of the rear cavity can be regulated, the production and installation processes are simplified, and the installation efficiency is improved.

Illustratively, the speaker unit provided by the present disclosure may be used in TWS headphones, wired headphones, sound boxes, and other electronic devices with sound emission functions.

Fig. 1 is a schematic structural diagram of a speaker unit according to an exemplary embodiment, fig. 2 is a schematic internal structural diagram of the speaker unit according to an exemplary embodiment, and fig. 3 is an enlarged view of a portion a of fig. 2. Referring to fig. 1 to 3, a speaker unit 100 of the present disclosure includes a vibration module 1 and a bracket 2, where the vibration module 1 includes a diaphragm 11 for transmitting sound emitted from the speaker unit, and the bracket 2 supports and limits the vibration module 1.

Fig. 4 is a schematic structural diagram of a support 2 according to an exemplary embodiment, and referring to fig. 2 to 4, the support 2 includes a body portion 21 and a back cavity portion 22, the vibration module 1 is disposed on the body portion 21, a sound-emitting space 23 is formed between the diaphragm 11 and the body portion 21, the back cavity portion 22 is connected to the body portion 21 and is located at the back side of the diaphragm 11, the back cavity portion 22 forms a back cavity 220, and the back cavity 220 and the sound-emitting space 23 are communicated through a first through hole 24.

The loudspeaker unit 100 directly forms the rear cavity 220 on the support 2, so that the shape rule of the rear cavity 220 can be controlled, the matching and installation of components such as a rear cavity support are not needed, the installation structure and the installation process are simplified, and the production and installation efficiency is greatly improved.

Illustratively, the shape of the rear cavity 220 may be formed simultaneously during the forming process of the bracket 2, for example, integrally formed by an injection molding process, and the shape of the rear cavity 220 may be designed and formed into a regular shape, for example, a ring shape, an arc shape, a sector shape, a rectangular shape, etc., by a mold, etc.

The back cavity portion 22 is located at the back side of the diaphragm 11, wherein the back side of the diaphragm 11 is the side opposite to the sound emitting direction of the diaphragm 11, including but not limited to the right back side of the diaphragm 11, and the side back side thereof is also within the protection range. For example, in the embodiment shown in fig. 2, the back cavity portion 22 is located at an edge portion on the side opposite to the sound emission direction of the diaphragm 11, i.e., is located at a position offset from the center of the side opposite to the sound emission direction of the diaphragm 11.

In some embodiments, the vibration module 1 includes a magnetic circuit assembly 12 for emitting an acoustic signal under the action of a magnetic field as motive force. Illustratively, the vibration module 1 may further include components of other sound generating principles, such as an electrostatic sound generating component, a piezoelectric sound generating component, an ion sound generating component, and the like.

Referring to fig. 4, in some embodiments, the rear cavity 22 includes a first sidewall 221, a second sidewall 222, and a cover 223, wherein:

the first side wall 221 is formed extending rearward from the outer edge of the body portion 21;

the second side walls 222 are located at two ends of the first side wall 221 and formed by extending the rear side surface of the body portion 21 backward, and the first side wall 221, the second side wall 222 and the body portion 21 enclose a cavity with a rear side opening;

the cover 223 closes the rear opening to form the rear cavity 220 by enclosing the first sidewall 221, the second sidewall 222, and the main body 21.

The first sidewall 221 is formed by extending at least a part of the outer edge of the body portion 21 to the rear side, which is the side opposite to the direction in which the diaphragm 11 is located, and at least a part of the outer edge of the body portion 21 includes a part of the outer edge or the entire outer edge. For example, in the structure shown in fig. 4, the main body 21 is a ring-shaped structure, a part of the outer edge of which extends to the rear side to form a first sidewall 221, and the first sidewall 221 is a cylindrical structure with a certain arc length. In this embodiment, the second sidewall 222 extends from the first sidewall 221 toward the main body 21, and the first sidewall 221, the second sidewall 222 and the main body 21 enclose a cavity with a predetermined regular shape.

In other embodiments, all the outer edge of the main body may extend to the rear side to form the first sidewall, in this case, the first sidewall is a closed ring structure, and a ring-shaped cavity with a rear opening may be directly surrounded by the first sidewall and the main body.

The rear side of the cavity is closed by the cover 223 to form the rear cavity 220, i.e. the shape of the rear cavity 220 is the same as the shape of the cavity.

In some embodiments, the body portion 21 includes a first bracket 211, a second bracket 212, and a connecting structure 213 connecting the first bracket 211 and the second bracket 212, the diaphragm 11 is disposed on the first bracket 211, and the magnetic circuit assembly 12 is disposed on the second bracket 212.

The magnetic circuit component 12 and the diaphragm 11 are located on different sides of the sound-emitting space 23, and sound emitted by the magnetic circuit component 12 is transmitted to the diaphragm 11 through the sound-emitting space 23 between the body portion 21 and the diaphragm 11 and is released. In the embodiment shown in fig. 2, the magnetic circuit assembly 12 and the diaphragm 11 are located on opposite sides of the sound-emitting space 23, and the sound-emitting end of the magnetic circuit assembly 12 is disposed toward the diaphragm 11.

In the present disclosure, the rear cavity 22 is connected to the first bracket 211, the second bracket 212, and/or the connecting structure 213. For example, in the embodiment shown in fig. 2, the rear cavity 22 is connected to the second bracket 212 and the connecting structure 213. In other embodiments, the rear cavity 22 may be connected to the first bracket 211, the second bracket 212, or the connecting structure 213 alone, or connected to both the first bracket 211 and the second bracket 212, or connected to both the first bracket 211 and the connecting structure 213, or connected to all of the first bracket 211, the second bracket 212, and the connecting structure 213.

Referring to fig. 2 and 4, in some embodiments, the connection structure 213 has a ring shape, an outer edge of the connection structure 213 is connected to the rear end of the first bracket 211, an inner edge of the connection structure 213 is connected to the front end of the second bracket 212, the rear cavity 22 is connected to the rear side of the connection structure 213, and the first through hole 24 is disposed on the connection structure 213.

The front end refers to an end facing the position of the diaphragm 11, the rear end refers to an end away from the position of the diaphragm 11, and the rear side surface of the connection structure 213 refers to a surface facing the side where the body portion 21 and the position of the diaphragm 11 are away from each other.

The first through hole 24 is disposed on the connecting structure 213 for communicating the rear chamber 22 and the sound emitting space 23, so as to balance the air pressure in the rear chamber 22 and the sound emitting space 23.

Referring to fig. 4, in some embodiments, the first sidewall 221 is formed by extending from an outer edge of the connection structure 213 to the rear side;

the second side wall 222 is located at two ends of the first side wall 221 and is formed by extending the rear side surface of the connecting structure 213 backwards, and the first side wall 221, the second side wall 222 and the second bracket 212 enclose a cavity with a rear side opening;

the cover 223 closes the rear opening to form the rear cavity 220 by enclosing the first sidewall 221, the second sidewall 222, and the second bracket 212.

Wherein at least a portion of the outer edge of the first sidewall 221 of the connection structure 213 extends toward the rear side, which is the side opposite to the direction in which the diaphragm 11 is located, and at least a portion of the outer edge of the connection structure 213 includes a portion of the outer edge or all of the outer edge. For example, in the structure shown in fig. 4, the connection structure 213 is a ring-shaped structure, a part of the outer edge of which extends to the rear side to form the first sidewall 221, and the first sidewall 221 is a cylindrical structure with a certain arc length. In this embodiment, the second sidewall 222 extends from the first sidewall 221 to the second bracket 212, and the first sidewall 221, the second sidewall 222 and the second bracket 212 enclose a cavity with a predetermined regular shape.

In other embodiments, all the outer edges of the connecting structure may extend rearward to form the first sidewall, and at this time, the first sidewall is a closed annular structure, and an annular cavity with a rear opening may be directly surrounded by the first sidewall, the second bracket, and the rear side of the connecting structure.

As described above, the shape of the cavity is related to the shape of the outer edge of the connecting structure 213 and the shape of the second bracket 212. For example, as shown in the figure, the connecting structure 213 is a ring-shaped structure, and the side wall of the second bracket 212 facing the rear cavity portion 22 is a cylindrical structure, so the shape of the cavity is a regular ring-shaped or fan-shaped structure, i.e. the shape of the rear cavity 220 can be a regular ring-shaped or fan-shaped structure.

The regular shape of the rear cavity 220 can simplify the steps of the production process and the installation process, save the cost of the mold and the production cost, facilitate the production and the installation, and improve the production efficiency and the installation efficiency.

In the present disclosure, the cover 223 may be mounted by an adhesive mounting, for example, a glue bonding, to ensure the sealing property of the mounting position of the cover 223. In some exemplary embodiments, the cover 223 may be mounted in a snap-fit manner, and a sealing structure such as a corresponding sealing ring may be disposed at the mounting position of the cover 223 to ensure the mounting sealing performance.

In some embodiments, the speaker unit 100 further includes a filler 3 disposed in the rear cavity 220, and the filler 3 includes tuning particles and/or heat dissipating particles.

The sound generated by the vibration module 1 is transmitted to the diaphragm 11 through the sound-generating space 23, and the sound wave generates airflow surge when being transmitted in the sound-generating space 23, so that part of the sound wave is transmitted to the rear cavity 220 through the first through hole 24 along with the airflow. The volume of rear chamber 220 influences the final midrange loudness and the tone quality of the sound signal that sends of speaker monomer 100, and the bigger the volume of rear chamber 220, the higher the midrange loudness of the sound signal that speaker monomer 100 sent, tone quality is better, and then the better the sound effect that speaker monomer 100 outputted.

The filling material 3 is arranged in the rear cavity 220, which is beneficial to the particle surface area of the filling material 3, and can increase the equivalent volume of the rear cavity 220, namely the surface area of the sound wave which can be released in the rear cavity 220, on the premise of not increasing the structure of the rear cavity 220. By utilizing the tuning particles in the rear cavity 220, after the equivalent volume of the rear cavity 220 is increased, the medium-frequency loudness of sound is improved, so that the tone quality is improved. Illustratively, the tuning particles may be a bass powder.

In the speaker unit 100 of the present disclosure, the filler 3 may be filled before the cover 223 is mounted, or may be filled after the cover 223 is mounted.

Fig. 5 is a schematic structural view illustrating the cover 223 according to an exemplary embodiment, and referring to fig. 5, in some embodiments, at least one filling material injection port 224 is provided on the cover 223 for injecting the filling material 3 into the rear cavity 220 through the filling material injection port 224 after the cover 223 is mounted. For example, in the embodiment shown in fig. 5, one filling material inlet 224 is provided at each of both ends of the cover 223.

Note that, after the filling material 3 is injected through the filling material injection opening 224, the filling material injection opening 224 needs to be sealed in order to prevent the filling material 3 from leaking through the filling material injection opening 224. For example, the filler inlet 224 may be sealed with a structural member such as a plastic sheet.

Referring back to fig. 2 to 4, in some embodiments, the rear cavity 22 is provided with a second through hole 25, the second through hole 25 is used for communicating the rear cavity 220 with the outside so as to balance the air pressure of the rear cavity 220 with the outside, and the rear cavity 220 is communicated with the outside, so that the air pressure in the sound generating space 23 can be further balanced, and phenomena such as deformation of the shape of the diaphragm 11, influence on appearance and use experience, and the like caused by unstable or unequal air pressure can be avoided.

In some embodiments, the speaker unit 100 includes a first air-permeable partition 4 covering the second through-hole 25. The first air-permeable isolating member 4 is used for isolating the filling material 3 from the second through hole 25, so as to ensure the air pressure balance effect and prevent the filling material 3 in the rear cavity 220 from leaking to the outside through the second through hole 25.

For example, the first air-permeable partition 4 may be a mesh structure or a filter structure with distributed pores, and the mesh diameter or pore diameter of the mesh structure is smaller than the particle diameter of the filler 3, so as to ensure the gas circulation and prevent the filler 3 from leaking through the first air-permeable partition 4.

In some embodiments, the speaker unit 100 includes a second air-permeable isolating member 5 covering the first through hole 24 for isolating the filling material 3 from the sound-emitting space 23, so as to prevent the filling material 3 from entering the sound-emitting space through the first through hole 24 and affecting the sound quality of the speaker unit 100.

Suitably, the second air-permeable partition 5 may be a mesh structure or a filter structure with air holes distributed therein, and the mesh diameter or the pore diameter of the mesh structure is smaller than the particle diameter of the filler 3, so as to prevent the filler 3 from leaking through the second air-permeable partition 5 while ensuring the gas circulation.

In some embodiments, at least a portion of the structure of the rear cavity 22 is a unitary structure with the bracket 2. Illustratively, the first and second sidewalls 221, 222 of the rear cavity 22 may be integrally formed with the bracket 2, for example, injection molding. For example, the first and second sidewalls 221 and 222 are integrally formed with the connecting structure 213, the first bracket 211, and the second bracket 212 by synchronous injection molding.

According to a second aspect of the embodiments of the present disclosure, there is provided a speaker module, which includes a housing and the speaker unit 100 as described above, the speaker unit 100 being disposed in the housing.

In an exemplary embodiment, a front cavity is formed between the speaker unit 100 and the housing, and the sound signal emitted from the speaker unit 100 is transmitted to the outside of the housing through the front cavity.

Illustratively, a filler material such as tuning particles may be disposed in the front cavity to optimize the sound quality of the speaker module.

According to a third aspect of the embodiments of the present disclosure, an electronic device is provided, which includes the speaker unit 100 or the speaker module as described above. Illustratively, the electronic device may be a wire headset, a TWS headset, a cell phone, a smart watch, a tablet, or the like, which may sound.

Other embodiments of the invention will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the invention and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the invention being indicated by the following claims.

It will be understood that the invention is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the invention is limited only by the appended claims.

Claims (10)

1. A speaker cell, comprising:

the vibration module comprises a vibration film;

the support comprises a body part and a rear cavity part, the vibration module is arranged on the body part, a sounding space is formed between the vibrating diaphragm and the body part, the rear cavity part is connected with the body part and is positioned on the rear side of the vibrating diaphragm, a rear cavity is formed in the rear cavity part, and the rear cavity is communicated with the sounding space through a first through hole.

2. The speaker cell of claim 1,

the rear cavity portion includes:

a first side wall extending rearward from an outer edge of the body portion;

the second side walls are positioned at two ends of the first side wall and formed by extending the rear side surface of the body part backwards, and the first side wall, the second side wall and the body part are enclosed to form a cavity with a rear side opening;

the cover body closes the rear opening so as to form the rear cavity by being surrounded by the first side wall, the second side wall and the body part.

3. The speaker cell as claimed in claim 2, wherein the cover is provided with a filler inlet.

4. A speaker cell as claimed in any one of claims 1 to 3, wherein the speaker cell comprises:

the filling material is arranged in the rear cavity and comprises tuning particles and/or radiating particles.

5. The speaker unit as claimed in any one of claims 1 to 3, wherein a second through hole is provided in the rear chamber portion for communicating the rear chamber with the outside.

6. The speaker cell of claim 5, comprising:

and the first ventilation isolating piece covers the second through hole.

7. A speaker cell as claimed in any one of claims 1 to 3, wherein the speaker cell comprises:

and the second ventilation isolating piece covers the first through hole.

8. The speaker cell of any one of claims 1 to 3, wherein the body portion comprises a first bracket, a second bracket, and a connection structure connecting the first bracket and the second bracket;

the diaphragm is arranged on the first support, and the rear cavity part is connected with the first support, the second support and/or the connecting structure.

9. A speaker module, comprising:

a housing;

a loudspeaker unit as claimed in any one of claims 1 to 8, disposed within the housing.

10. An electronic device comprising the speaker cell of any one of claims 1 to 8 or the speaker module of claim 9.

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