CN212696202U - Speaker module and electronic equipment - Google Patents
Speaker module and electronic equipment Download PDFInfo
- Publication number
- CN212696202U CN212696202U CN202021743729.5U CN202021743729U CN212696202U CN 212696202 U CN212696202 U CN 212696202U CN 202021743729 U CN202021743729 U CN 202021743729U CN 212696202 U CN212696202 U CN 212696202U
- Authority
- CN
- China
- Prior art keywords
- speaker module
- damping block
- leakage hole
- communicating
- housing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Details Of Audible-Bandwidth Transducers (AREA)
Abstract
The utility model discloses a loudspeaker module and electronic equipment, the loudspeaker module comprises a shell, a loudspeaker monomer and a damping block, the shell is provided with an inner cavity, and the shell is provided with a leakage hole; the loudspeaker monomer is arranged in the inner cavity, and the inner cavity is divided into a front sound cavity and a rear sound cavity, and the rear sound cavity is communicated with the leakage hole; the damping block covers the leakage hole; the damping block is provided with an airflow channel; the air flow channel is connected and communicated with the leakage hole; the axes at the two ends of the airflow channel are arranged at intervals. The utility model discloses well air current discharges before the external world, and earlier in airflow channel the buffering falls and makes an uproar.
Description
Technical Field
The utility model relates to a speaker technical field, in particular to speaker module and electronic equipment.
Background
The speaker module is an important acoustic component of the portable electronic device, is used for completing the conversion between an electric signal and a sound signal, and is an energy conversion device. The speaker module includes the shell and accepts the speaker monomer in the shell, and the speaker monomer is two cavitys in preceding sound chamber and back sound chamber with whole module inner chamber separation, and preceding sound chamber intercommunication speaker module's external world.
In the working process of a loudspeaker product, the electrified voice coil reciprocates under the action of electromagnetic force to enable air in the rear sound cavity to be continuously compressed, airflow pulsation noise generated by air flow can cause unstable acoustic performance and noise, and displacement is asymmetric.
In the related art, a leakage hole is formed in the rear sound cavity, and the mesh cloth is bonded at the position of the leakage hole to reduce the airflow pulsation noise, but the damping effect is limited, the airflow disturbance sound and the flow velocity are still large, and the acoustic requirement cannot be met.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a speaker module and electronic equipment aims at further reducing the air current pulsation noise, satisfies the acoustics requirement.
In order to achieve the above object, the utility model provides a speaker module includes:
the shell is provided with an inner cavity and is provided with a leakage hole;
the loudspeaker single body is arranged in the inner cavity and divides the inner cavity into a front sound cavity and a rear sound cavity, and the rear sound cavity is communicated with the leakage hole; and
the damping block covers the leakage hole; the damping block is provided with an airflow channel; the air flow channel is connected and communicated with the leakage hole; the axes at the two ends of the airflow channel are arranged at intervals.
In an embodiment of the present invention, the damping block is disposed on the inner wall or the outer wall of the housing;
and/or the leakage hole is disposed adjacent to a corner of the housing.
In an embodiment of the present invention, the airflow channel includes a first communicating portion, a second communicating portion and a buffering portion, and two ends of the buffering portion are respectively connected to the first communicating portion and the second communicating portion; the axes of the first communicating part and the second communicating part are arranged at intervals; the first communicating portion is connected and communicated with the leakage hole.
In an embodiment of the present invention, the buffer portion is arc-shaped or spiral-shaped; when the buffer part is spiral, the buffer part comprises a plurality of straight road sections and a plurality of curve road sections, and the straight road sections are sequentially connected and communicated through the curve road sections; the straight channel sections at two ends are respectively connected with the first communicating part and the second communicating part;
the sectional area of the curve section is larger than the sectional areas of the two straight sections connected to the two ends of the curve section.
In an embodiment of the present invention, an axis of the first communicating portion is connected to the adjacent straight section at an included angle;
and/or the second communicating part is connected with the axis of the adjacent straight section in an included angle.
In an embodiment of the present invention, the first communicating portion is concavely disposed on one side of the damping block facing the housing; the second communicating part is concavely arranged on one side of the damping block, which is far away from the shell;
and/or the first communication part is arranged at the central position of one side, facing the shell, of the damping block.
In an embodiment of the present invention, the second communicating portion passes through the damping block.
In an embodiment of the present invention, the damping block faces a side surface of the housing and is concavely provided with a damping groove, and the damping groove and the housing enclose and form the airflow channel.
In an embodiment of the present invention, the damping block is bonded to the housing;
and/or the damping block is made of plastic or metal.
The utility model also provides an electronic equipment, including equipment principal and foretell speaker module, the speaker module is located equipment principal.
The utility model discloses technical scheme air current discharge falls in the buffering of airflow channel before external world. The reactive impedance of the airflow channel can play a role in reducing airflow pulsation noise, and the axes at the two ends of the airflow channel are arranged at intervals, so that the flowing speed of airflow in the airflow channel can be reduced, the airflow channel plays a role in buffering, the time of the airflow passing through the airflow channel is prolonged, and the airflow pulsation noise is further reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is an exploded schematic view of a connection portion between a damping block and a housing according to an embodiment of the speaker module of the present invention;
FIG. 2 is a schematic view of the damping mass of FIG. 1;
fig. 3 is another angle view of fig. 1.
The reference numbers illustrate:
| reference numerals | Name (R) | Reference numerals | Name (R) |
| 1 | |
11 | |
| 2 | Damping block | 21 | A first communicating |
| 22 | Second communicating |
23 | |
| 231 | |
232 | Bend section |
The implementation, functional features and advantages of the present invention will be further described with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that, if directional indications (such as upper, lower, left, right, front and rear … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are changed accordingly.
In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" appearing throughout is to include three juxtapositions, exemplified by "A and/or B," including either the A or B arrangement, or both A and B satisfied arrangement. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
The utility model provides a speaker module.
In the embodiment of the present invention, as shown in fig. 1, fig. 2 and fig. 3, the speaker module includes a housing 1, a speaker unit and a damping block 2, the housing 1 has an inner cavity, and the housing 1 is provided with a leakage hole 11; the loudspeaker monomer is arranged in the inner cavity, the inner cavity is divided into a front sound cavity and a rear sound cavity, and the rear sound cavity is communicated with the leakage hole 11; the damping block 2 covers the leakage hole 11; the damping block 2 is provided with an airflow channel; the air flow channel is connected and communicated with the leakage hole 11; the axes at the two ends of the airflow channel are arranged at intervals.
In this embodiment, before the air flow is exhausted to the outside, the air flow channel is firstly buffered and denoised. The reactive impedance of the airflow channel can play a role in reducing airflow pulsation noise, and the axes at the two ends of the airflow channel are arranged at intervals, so that the flowing speed of airflow in the airflow channel can be reduced, the airflow channel plays a role in buffering, the time of the airflow passing through the airflow channel is prolonged, and the airflow pulsation noise is further reduced.
The loudspeaker module comprises a shell 1, a loudspeaker single body and a damping block 2, wherein the shell 1 is provided with an inner cavity, and the shell 1 is provided with a leakage hole 11; the loudspeaker monomer is arranged in the inner cavity, the inner cavity is divided into a front sound cavity and a rear sound cavity, and the rear sound cavity is communicated with the leakage hole 11; technical means belonging to the prior art are available to the person skilled in the art.
In an embodiment of the present invention, the damping block 2 is disposed on the inner wall of the housing 1.
In this embodiment, two ends of the airflow channel are respectively communicated with the leakage hole 11 and the rear acoustic cavity. And the air flow of the rear sound cavity enters the air flow channel from one end of the air flow channel, which is far away from the leakage hole 11, is subjected to noise elimination and reduction through the air flow channel, and is discharged to the outside from the leakage hole 11.
The utility model discloses an in the embodiment, the concave constant head tank that is equipped with of inner wall of shell 1, damping piece 2 is located in the constant head tank, set up the installation and the location of constant head tank damping piece 2 of being convenient for.
The utility model discloses an in the embodiment, the protruding location platform that is equipped with of inner wall of shell 1, damping piece 2 be equipped with in the positioning groove of location platform adaptation, set up the installation and the location of the damping piece 2 of being convenient for of location platform and positioning groove.
In an embodiment of the present invention, the damping block 2 is disposed on the outer wall of the housing 1. In this embodiment, both ends of the air flow passage communicate with the leakage hole 11 and the outside, respectively. The air flow of the rear sound cavity flows into one end, close to the leakage hole 11, of the air flow channel from the leakage hole 11, and is discharged to the outside from one end, far away from the leakage hole 11, of the air flow channel after the noise elimination and the noise reduction of the air flow channel.
The utility model discloses an in the embodiment, the concave constant head tank that is equipped with of outer wall of shell 1, damping piece 2 is located in the constant head tank, set up the installation and the location of constant head tank damping piece 2 of being convenient for.
The utility model discloses an in the embodiment, the protruding location platform that is equipped with of outer wall of shell 1, damping piece 2 be equipped with in the positioning groove of location platform adaptation, set up the installation and the location of the damping piece 2 of being convenient for of location platform and positioning groove.
In an embodiment of the present invention, the leakage hole 11 is disposed adjacent to a corner of the housing 1.
In the present embodiment, the corner of the housing 1 refers to a position near the edge of the plane of the housing 1 where the leakage hole 11 is opened, and referring to fig. 1, fig. 1 shows a part of the housing 1, the part of the housing 1 has four corners, the position near the four corners is a corner, and the leakage hole 11 is opened at one corner of the part of the housing 1.
In an embodiment of the present invention, as shown in fig. 1 and fig. 2, the airflow channel includes a first communicating portion 21, a second communicating portion 22 and a buffering portion 23, and two ends of the buffering portion 23 are respectively connected to the first communicating portion 21 and the second communicating portion 22; the first communicating portion 21 and the second communicating portion 22 are provided at intervals in the axial direction. The first communicating portion 21 is connected to and communicates with the leak hole 11.
In the present embodiment, the first communicating portion 21, the buffer portion 23, and the second communicating portion 22 are integrally connected and communicate. The axes of the first communicating part 21 and the second communicating part 22 are arranged at intervals, so that the axes of the airflow channels are not straight lines, namely the airflow channels are not straight-line channels, the airflow can be ensured to turn at least through two sides in the airflow channels, the flowing speed of the airflow is delayed, and the airflow pulsation noise is better reduced.
In an embodiment of the present invention, the first communicating portion 21 is connected to the buffering portion 23 at an included angle; the airflow can be turned, the flowing speed of the airflow is delayed, and the airflow pulsation noise is better reduced. In this embodiment, the first communicating portion 21 and the buffer portion 23 are disposed perpendicularly.
In other embodiments, the first communicating portion 21 and the buffer portion 23 may be coaxially disposed, and in order to ensure that the axes of the first communicating portion 21 and the second communicating portion 22 are spaced, the buffer portion 23 has at least one bending portion to make the air flow turn.
In an embodiment of the present invention, the second communicating portion 22 is connected to the buffering portion 23 at an included angle; the airflow can be turned, the flowing speed of the airflow is delayed, and the airflow pulsation noise is better reduced. In the present embodiment, the second communicating portion 22 is provided perpendicular to the buffer portion 23.
In other embodiments, the first communicating portion 21 and the buffering portion 23 may be coaxially disposed. In order to ensure that the axes of the first communicating portion 21 and the second communicating portion 22 are spaced apart, the buffer portion 23 has at least one bent portion for turning the air flow.
In this embodiment, the damping block 2 is disposed on the inner wall of the housing 1, the first communicating portion 21 is connected to and communicates with the leakage hole 11, and the second communicating portion 22 is connected to and communicates with the rear acoustic cavity. The process that the airflow of the rear sound cavity flows to the outside is as follows: the fluid passes through the second communicating portion 22, the buffer portion 23, the first communicating portion 21, and the leak hole 11 in this order, and is discharged to the outside.
In another embodiment, the damping block 2 is disposed on an outer wall of the housing 1, the first communicating portion 21 is connected to and communicates with the leakage hole 11, and the second communicating portion 22 is connected to and communicates with the outside. The process that the airflow of the rear sound cavity flows to the outside is as follows: the fluid is discharged to the outside after passing through the leak hole 11, the first communicating portion 21, the buffer portion 23, and the second communicating portion 22 in this order.
In an embodiment of the present invention, as shown in fig. 1 and 2, the buffer portion 23 is arc-shaped, circular, square or spiral.
It can be understood that by arranging the buffer portion 23 in one of an arc shape and a spiral shape, the length of the buffer portion 23 can be extended in the limited space of the damping mass 2, so as to achieve the purpose of extending the moving path of the air flow in the air flow channel, and achieve the purpose of further effectively reducing the air flow pulsation noise, and simultaneously reduce the volume of the damping mass 2.
In an embodiment of the present invention, the buffer portion 23 may also be circular, L-shaped, or square.
In an embodiment of the present invention, as shown in fig. 1 and fig. 2, the buffering portion 23 is spiral, the buffering portion 23 includes a plurality of straight sections 231 and a plurality of curved sections 232, and the straight sections 231 are connected and communicated in sequence through the curved sections 232; the two straight sections 231 at both ends are connected to the first communicating portion 21 and the second communicating portion 22, respectively; the cross-sectional area of the curved section 232 is larger than the cross-sectional areas of the two straight sections 231 connected to the two ends of the curved section.
In this embodiment, the plurality of straight sections 231 and the plurality of curved sections 232 are integrally connected and communicated with each other. The turning of the airflow in the curved section 232 can slow the flow rate of the airflow and better reduce the airflow pulsation noise. Meanwhile, the sectional area of the curved section 232 is larger than the sectional areas of the two straight sections 231 connected to the two ends of the curved section 232, so that the generation of eddy current in the curved section 232 can be reduced, and the airflow pulsation noise can be reduced better.
In an embodiment of the present invention, as shown in fig. 1 and fig. 2, an axis of the first communicating portion 21 is connected to an axis of the adjacent straight section 231 at an included angle; the airflow can be turned, the flowing speed of the airflow is delayed, and the airflow pulsation noise is better reduced.
In this embodiment, the axis of the first communicating portion 21 is perpendicular to the axis of the adjacent straight section 231.
In an embodiment of the present invention, as shown in fig. 1 and fig. 2, the second communicating portion 22 is connected to an axis of the adjacent straight section 231 at an included angle. The airflow can be turned, the flowing speed of the airflow is delayed, and the airflow pulsation noise is better reduced.
In this embodiment, the axis of the second communicating portion 22 is perpendicular to the axis of the adjacent straight section 231.
It can be understood that the axis of the first communicating portion 21 defined in the present invention is the axial center line of the first communicating portion 21, and the axis of the straight section 231 defined in the present invention is the center line of the length direction of the straight section 231. The axis of the second communicating portion 22 defined in the present invention is the axial center line of the second communicating portion 22.
In an embodiment of the present invention, as shown in fig. 1, 2 and 3, the first communicating portion 21 is concavely disposed on a side of the damping block 2 facing the housing 1; the second communicating portion 22 is concavely arranged on one side of the damping block 2 far away from the shell 1.
It will be appreciated that the side of the damping mass 2 facing the housing 1 is arranged parallel opposite to the side facing away from the housing 1.
One side of the damping block 2 facing the housing 1 is recessed to form the first communicating portion 21, and the first communicating portion 21 is connected and communicated with the leakage hole 11. When damping piece 2 was equipped with the inner wall of shell 1, second intercommunication portion 22 is concavely located damping piece 2 deviates from one side of shell 1, the back sound chamber air current of being convenient for flows in second intercommunication portion 22. When damping piece 2 was equipped with the outer wall of shell 1, second intercommunication portion 22 is concavely located damping piece 2 deviates from one side of shell 1, the airflow outflow second intercommunication portion 22 of being convenient for.
In an embodiment of the present invention, as shown in fig. 1 and 2, the first communicating portion 21 is disposed at a central position of the damping block 2 facing one side of the housing 1.
It can be understood that the first communicating portion 21 is disposed at a central position of the damping block 2 facing the side of the housing 1, that is, the leakage hole 11 corresponds to a central position of the damping block 2 facing the side of the housing 1, and an acting force generated on the damping block 2 when an air flow flows out from the leakage hole 11 is balanced, so that the connection stability of the damping block 2 is improved, and the stability of the acoustic performance is ensured.
In an embodiment of the present invention, as shown in fig. 1 and 2, the damping block 2 faces a side surface of the housing 1, and a damping groove is concavely disposed on the side surface, and the damping groove and the housing 1 enclose and form the airflow channel.
It can be understood that a damping groove is directly concavely arranged on one side surface of the damping block 2 facing the shell 1, so that grooving and machining forming are facilitated.
In an embodiment of the present invention, the second communicating portion 22 penetrates through the damping block 2.
In the present embodiment, the first communicating portion 21 is a hole that does not penetrate the damper block 2, and the second communicating portion 22 is a hole that penetrates the damper block 2.
In an embodiment of the present invention, the damping block 2 is attached to the housing 1.
In an embodiment of the present invention, the damping block 2 is made of plastic or metal.
In this embodiment, the damping block 2 is made of plastic and is formed by injection molding, and the damping block 2 may also be made of steel and is formed by wire cutting and machining.
The utility model also provides an electronic equipment, this electronic equipment include equipment principal and foretell speaker module. The specific structure of the speaker module refers to the above embodiments, and since the electronic device adopts all technical solutions of all the above embodiments, at least all beneficial effects brought by the technical solutions of the above embodiments are achieved, and no further description is given here. Wherein, the speaker module is arranged on the equipment main body.
The above is only the optional embodiment of the present invention, and not therefore the scope of the present invention is limited, all under the inventive concept, the equivalent structure transformation made by the contents of the specification and the drawings is utilized, or the direct/indirect application is included in other related technical fields in the patent protection scope of the present invention.
Claims (10)
1. A speaker module, comprising:
the shell is provided with an inner cavity and is provided with a leakage hole;
the loudspeaker single body is arranged in the inner cavity and divides the inner cavity into a front sound cavity and a rear sound cavity, and the rear sound cavity is communicated with the leakage hole;
the damping block covers the leakage hole; the damping block is provided with an airflow channel; the air flow channel is connected and communicated with the leakage hole; the axes at the two ends of the airflow channel are arranged at intervals.
2. The speaker module as claimed in claim 1, wherein the damping block is disposed on an inner wall or an outer wall of the housing;
and/or the leakage hole is disposed adjacent to a corner of the housing.
3. The speaker module as claimed in claim 1, wherein the air flow channel includes a first communicating portion, a second communicating portion and a buffer portion, and both ends of the buffer portion are connected to the first communicating portion and the second communicating portion, respectively; the axes of the first communicating part and the second communicating part are arranged at intervals; the first communicating portion is connected and communicated with the leakage hole.
4. The speaker module as recited in claim 3, wherein said buffer is arcuate or spiral; when the buffer part is spiral, the buffer part comprises a plurality of straight road sections and a plurality of curve road sections, and the straight road sections are sequentially connected and communicated through the curve road sections; the straight channel sections at two ends are respectively connected with the first communicating part and the second communicating part;
the sectional area of the curve section is larger than the sectional areas of the two straight sections connected to the two ends of the curve section.
5. The speaker module as claimed in claim 4, wherein the axis of the first communicating portion is connected with the axis of the adjacent straight section at an included angle;
and/or the second communicating part is connected with the axis of the adjacent straight section in an included angle.
6. The speaker module as claimed in claim 3, wherein the first communicating portion is recessed in a side of the damping block facing the housing; the second communicating part is concavely arranged on one side of the damping block, which is far away from the shell;
and/or the first communication part is arranged at the central position of one side, facing the shell, of the damping block.
7. The speaker module as recited in claim 6, wherein the second communication portion passes through the damping mass.
8. The speaker module as claimed in any one of claims 1 to 7, wherein a side of the damping block facing the housing is recessed with a damping slot, and the damping slot and the housing enclose to form the airflow channel.
9. The speaker module as recited in claim 8, wherein said damping mass is adhesively attached to said housing;
and/or the damping block is made of plastic or metal.
10. An electronic apparatus comprising an apparatus main body and the speaker module according to any one of claims 1 to 9, the speaker module being provided to the apparatus main body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021743729.5U CN212696202U (en) | 2020-08-19 | 2020-08-19 | Speaker module and electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021743729.5U CN212696202U (en) | 2020-08-19 | 2020-08-19 | Speaker module and electronic equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212696202U true CN212696202U (en) | 2021-03-12 |
Family
ID=74903654
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021743729.5U Active CN212696202U (en) | 2020-08-19 | 2020-08-19 | Speaker module and electronic equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212696202U (en) |
-
2020
- 2020-08-19 CN CN202021743729.5U patent/CN212696202U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8009851B2 (en) | Noise reduction system and method | |
| CN107360516B (en) | Loudspeaker box | |
| CN201345722Y (en) | Low-frequency expansion device | |
| EP1229758A3 (en) | Wind noise suppression in directional microphones | |
| CN212696202U (en) | Speaker module and electronic equipment | |
| CN210579210U (en) | Loudspeaker module and electronic equipment | |
| CN215595841U (en) | Compressor and refrigerating and heating equipment | |
| EP3544315A1 (en) | Bass reflex port and bass reflex type speaker | |
| CN111741403B (en) | Speaker module and electronic equipment | |
| CN219248033U (en) | Earphone cavity structure capable of optimizing high-frequency response | |
| WO2021098624A1 (en) | Loudspeaker module and electronic device | |
| CN217783731U (en) | Diaphragm pump with noise reduction structure | |
| CN111131942A (en) | Sound production device and electronic equipment | |
| CN217693712U (en) | Microphone and electronic equipment | |
| JP2002156139A (en) | Ventilating apparatus | |
| CN213342570U (en) | Loudspeaker box and mobile terminal | |
| US10882461B2 (en) | Waveguide enabled externally ducted vehicle loudspeaker | |
| CN210670477U (en) | Microphone assembly and electronic equipment | |
| CN109058644B (en) | Rectifier type seawater pipeline silencer with central bag body | |
| CN213485097U (en) | Box body assembly and sound box | |
| CN216122512U (en) | Physical sound amplifying device | |
| CN214413024U (en) | Bar speaker and notebook computer | |
| CN210609589U (en) | Sound production device and electronic equipment | |
| CN218103487U (en) | Loudspeaker monomer and loudspeaker module | |
| CN215452995U (en) | Front sound cavity structure of receiver loudspeaker and electronic equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |