CN111836160A

CN111836160A - Sound production module

Info

Publication number: CN111836160A
Application number: CN202010992978.6A
Authority: CN
Inventors: 蔡晓东; 刘松
Original assignee: Goertek Inc
Current assignee: Goertek Inc
Priority date: 2020-09-21
Filing date: 2020-09-21
Publication date: 2020-10-27
Anticipated expiration: 2040-09-21
Also published as: CN111836160B

Abstract

The invention discloses a sounding module, which comprises a shell with an accommodating space, and a magnetic circuit system, a high-pitch vibration system and a low-pitch vibration system which are arranged in the accommodating space, wherein the magnetic circuit system comprises a sealing element, a magnetic steel component and a first washer attached to the magnetic steel component; magnetic circuit's relative both sides are located to bass vibration system and high pitch vibration system branch, form the bass antechamber between bass vibration system and the casing, form the high pitch antechamber between high pitch vibration system and the casing, form the high pitch postchamber between high pitch vibration system and the magnetic circuit, first china department forms the high pitch tuning chamber of opening orientation bass vibration system to the direction arch of bass vibration system, sealing member shutoff opening, through-hole intercommunication high pitch tuning chamber and high pitch postchamber have been seted up on the first china department, the high pitch of seting up intercommunication high pitch antechamber goes out the sound hole and the bass of intercommunication bass antechamber goes out the sound hole on the casing. The sounding module of the invention has small size and wide audio frequency bandwidth.

Description

Sound production module

Technical Field

The invention relates to the technical field of electroacoustic conversion, in particular to a sounding module.

Background

In order to achieve perfect sound effect, the speaker of the existing partial electronic equipment combines the bass unit and the treble unit, so that the low-frequency part and the high-frequency part of the audio can be presented fully and perfectly, and the bandwidth is fully expanded.

But make up into a sound production module with bass unit and treble unit, it is bigger to probably lead to sound production module size to compare in single vibration unit's sound production module, does not conform to the product thin type requirement.

Therefore, it is desirable to provide a novel sound module to solve the above technical problems.

Disclosure of Invention

The invention mainly aims to provide a sounding module, and aims to solve the technical problem that the sounding module with a high-pitch unit and a low-pitch unit is large in size.

In order to achieve the purpose, the sound production module provided by the invention comprises a shell with an accommodating space, and a magnetic circuit system, a high-pitch vibration system and a low-pitch vibration system which are arranged in the accommodating space, wherein the magnetic circuit system comprises a sealing element, a magnetic steel component and a first washer attached to the magnetic steel component;

bass vibration system with treble vibration system branch is located magnetic circuit's relative both sides, bass vibration system with form the bass antechamber between the casing, treble vibration system with form the treble postchamber between the magnetic circuit, first china department to the protruding opening orientation that forms of direction of bass vibration system the treble tuning chamber of bass vibration system, the sealing member shutoff the opening, the through-hole intercommunication has been seted up on the first china department the treble sound chamber with the treble postchamber, the intercommunication has been seted up on the casing the treble sound hole and the intercommunication in treble antechamber the bass sound hole in bass antechamber.

Preferably, the casing includes relative bottom plate and the upper cover that sets up, and connects the lateral wall of bottom plate and upper cover and with the passageway spare that the upper cover is connected, the bottom plate the lateral wall the upper cover with passageway spare cooperation forms accommodating space, bass play sound hole with the high pitch goes out the sound hole interval and sets up on the passageway spare, be equipped with the connection on the passageway spare bass go out the sound hole with the bass of chamber goes out the sound passageway before the bass, and connect the high pitch go out the sound hole with the high pitch of chamber goes out the sound passageway before the high pitch.

Preferably, high pitch vibration system is including locating barricade on the bottom plate, set firmly in high pitch vibrating diaphragm and drive on the barricade the high pitch voice coil loudspeaker voice coil of high pitch vibrating diaphragm vibration, high pitch vibrating diaphragm the barricade with the bottom plate enclose into with the low pitch antechamber is kept apart the high pitch antechamber.

Preferably, the barricade is including locating first installation department on the bottom plate with locate second installation department on the first installation department, the second installation department is kept away from the one end of first installation department with the magnetic circuit butt, the high pitch vibrating diaphragm set firmly in on the second installation department, the second installation department is close to the one end of passageway piece with the bottom plate looks interval sets up and forms the intercommunication the high pitch play sound passageway with the breach of high pitch front chamber.

Preferably, bass vibration system is including locating bass vibrating diaphragm and drive on the lateral wall the bass voice coil loudspeaker voice coil of bass vibrating diaphragm vibration, the bass vibrating diaphragm with form between the upper cover the bass antechamber, the bass vibrating diaphragm with form the chamber behind the bass between the magnetic circuit, the high pitch antechamber with the chamber is kept apart behind the bass.

Preferably, first china department is located including pasting first magnetic conduction portion on the magnet steel assembly and certainly first magnetic conduction portion is to keeping away from the bellied second magnetic conduction portion of bass vibration system's direction, the through-hole is located on the second magnetic conduction portion, second magnetic conduction portion with the magnet steel assembly interval sets up and forms the second magnetic gap, the high pitch voice coil loudspeaker voice coil inserts the second magnetic gap.

Preferably, the magnetic steel assembly comprises a main magnetic steel and a side magnetic steel forming a first magnetic gap, the first magnetic conduction part is attached to the main magnetic steel, and the bass voice coil is inserted into the first magnetic gap.

Preferably, the magnetic steel assembly further comprises a third washer arranged on one side, close to the high-pitch vibrating diaphragm, of the magnetic steel assembly, and the second installation part is arranged on the third washer.

Preferably, one end of the third washer is arranged on the main magnetic steel, and the other end of the third washer is arranged on the side magnetic steel.

Preferably, the sound production module is still including locating the ventilative piece of through-hole department, the sound absorbing material is filled to the high pitch tuning intracavity.

In the invention, the high-pitch vibration system and the low-pitch vibration system are arranged on two sides of the magnetic circuit system, so that the high-pitch vibration system can output high pitch and the low-pitch vibration system can output low pitch through one sounding module, and the sounding bandwidth of the sounding module is improved; the high-pitch vibration system and the low-pitch vibration system share the same magnetic circuit system, so that the size of the sounding module is reduced; the high-pitch sound cavity is communicated with the high-pitch rear cavity, so that the corresponding air compressible space of the high-pitch vibration system is increased, and the high-pitch vibration system is favorable for sounding; through setting up respectively the intercommunication the high pitch of high pitch antechamber goes out the sound hole and the intercommunication the bass of bass antechamber goes out the sound hole to reduce the audio frequency that the high pitch vibration system produced and the audio frequency that the bass vibration system produced and influence each other.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings 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 a schematic perspective view of a sound module according to an embodiment of the present invention;

FIG. 2 is a schematic view of a disassembled structure of the sound module according to an embodiment of the present invention;

FIG. 3 is a schematic top view of a sound module according to an embodiment of the present invention;

FIG. 4 is a schematic cross-sectional view of the sound module shown in FIG. 3 along line A-A;

FIG. 5 is a schematic view of a partial cross-sectional view of the sound module shown in FIG. 3 along line A-A;

fig. 6 is an enlarged schematic structural view of a portion D of the sound module shown in fig. 4;

FIG. 7 is a partially disassembled schematic view of a sound module according to an embodiment of the present invention;

FIG. 8 is a schematic cross-sectional view of the sound module shown in FIG. 3 along line B-B;

fig. 9 is a schematic cross-sectional view of the sound module shown in fig. 3 along the line C-C.

Examples reference numbers illustrate:

reference numerals	Name (R)	Reference numerals	Name (R)
				100	Sound production module	1	Shell body
11	Upper cover	12	High pitch sound outlet hole
				13	Base plate	14	Bass sound outlet
15	Side wall	17	Channel piece
				16	Bass sound outlet channel	18	High-pitch sound outlet channel
19	Rear cavity cover	132	Mounting hole
				3	Magnetic circuit system	2	Accommodating space
32	First magnetic gap	31	Sealing element
				331	Main magnetic steel	33	Magnetic steel assembly
34	Second magnetic gap	333	Side magnetic steel
				351	First guideMagnetic part	35	First washer
3531	Roof wall	353	Second magnetic conductive part
				37	Second washer	3533	Magnetic conduction wall
39	Third washer	372	Dodging groove
				51	High-pitch vibrating diaphragm	5	High-pitch vibration system
53	High pitch voice coil	52	High tone sound cavity
				55	Retaining wall	54	High pitch back cavity
553	Second mounting part	551	First mounting part
				56	High pitch front cavity	58	Gap
7	Bass vibration system	71	Bass vibrating diaphragm
				711	Bass body	713	Bass folded ring part
715	Bass fixing part	72	Low pitch sound cavity
				73	Bass voice coil	74	Bass rear cavity
76	Bass front cavity	91	Flexible deformation piece
				93	Air permeable member

The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.

In addition, the descriptions related to "first", "second", etc. in the present invention are for descriptive purposes only and are 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, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

Referring to fig. 1 to 5, in the sound module 100 according to the present invention, the sound module 100 includes a housing 1 having an accommodating space 2, and a magnetic circuit system 3, a treble vibration system 5 and a bass vibration system 7 disposed in the accommodating space 2, where the magnetic circuit system 3 includes a sealing member 31, a magnetic steel assembly 33, and a first washer 35 attached to the magnetic steel assembly 33; bass vibration system 7 and high pitch vibration system 5 branch are located the relative both sides of magnetic circuit 3, bass vibration system 7 with form chamber 76 before the bass between the casing 1, high pitch vibration system 5 with form chamber 56 before the high pitch between the casing 1, form chamber 54 after the high pitch between high pitch vibration system 5 and the magnetic circuit 3, first china 35 is protruding to form the opening towards the high pitch tuning chamber 52 of bass vibration system 7 to the direction of bass vibration system 7, sealing member 31 shutoff opening, has seted up through-hole intercommunication high pitch tuning chamber 52 and chamber 54 after the high pitch on the first china 35, the intercommunication has been seted up on the casing 1 the high pitch sound outlet hole 12 and the intercommunication of chamber 56 before the high pitch sound outlet hole 14 of chamber 76 before the bass.

Specifically, bass vibration system 7 includes bass vibrating diaphragm 71 and bass voice coil 73 that supports bass vibrating diaphragm 71 to vibrate, treble vibration system 5 includes treble vibrating diaphragm 51 and the treble voice coil 53 that supports treble vibrating diaphragm 51 vibration with magnetic circuit 3 looks interval setting, treble voice coil 53 and bass voice coil 73 are connected with external circuit electricity respectively, treble voice coil 53 and bass voice coil 73 circular telegram, under the influence of the produced magnetic field of magnetic circuit 3, bass voice coil 73 and treble voice coil 53 vibrate respectively, thereby can drive bass vibrating diaphragm 71 and treble vibrating diaphragm 51 vibration sound production respectively. In this embodiment, the bass vibration system 7 is compared to the treble vibration system 5 for both bass and treble.

In the invention, the high-pitch vibration system 5 and the low-pitch vibration system 7 are arranged on two sides of the magnetic circuit system 3, so that the high-pitch vibration system 5 can output high pitch and the low-pitch vibration system 7 can output low pitch through one sounding module 100, and the sounding bandwidth of the sounding module 100 is improved; the high-pitch vibration system 5 and the low-pitch vibration system 7 share the same magnetic circuit system 3, so that the size of the sounding module 100 is reduced; the high-pitch cavity 52 is communicated with the high-pitch rear cavity 54, so that the air compressible space corresponding to the high-pitch vibration system 5 is increased, and the high-pitch vibration system 5 can sound; by providing treble sound outlet hole 12 in communication with treble front volume 56 and bass sound outlet hole 14 in communication with bass front volume 76, respectively, the interaction of audio produced by treble vibration system 5 with audio produced by bass vibration system 7 is reduced.

Referring to fig. 2, 5, 8 and 9, the housing 1 includes a bottom plate 13 and an upper cover 11, a sidewall 15 connecting the bottom plate 13 and the upper cover 11, and a channel 17 connected to the upper cover 11, the bottom plate 13, the sidewall 15, the upper cover 11 and the channel 17 cooperate to form the accommodating space 2, the bass sound outlet 14 and the treble sound outlet 12 are spaced apart from each other on the channel 17, the channel 17 is provided with a bass sound outlet 16 connecting the bass sound outlet 14 and the bass front cavity 76, and a treble sound outlet 18 connecting the treble sound outlet 12 and the treble front cavity 56. Separate sound outlet channels are provided for the bass front volume 76 and the treble front volume 56, respectively, to further avoid the interaction of the audio produced by the treble vibration system 5 with the audio produced by the bass vibration system 7. In the present embodiment, the side wall 15 is annular to surround the magnetic circuit system 3, and the channel member 17 is provided on the outer side of the side wall 15 away from the magnetic circuit system 3. The side wall 15 may be correspondingly vented to allow communication between treble front volume 56 and treble sound outlet 12, and communication between bass front volume 76 and bass sound outlet 14.

In one embodiment, the sound module 100 further includes a rear cover 19 cooperating with the bottom plate 13 and the side wall 15 to form the bass tone cavity 72, and a mounting hole 132 is formed on the bottom plate 13 or the rear cover 19, and the mounting hole 132 communicates with the exterior and the bass tuning cavity 72. The sound production module 100 further comprises a flexible deformation member 91 for blocking the mounting hole 132, and a bass rear cavity 74 communicated with the bass tuning cavity 72 is formed between the bass vibration system 7 and the magnetic circuit system 3. Through setting up the bass tuning chamber 72 with cavity 74 intercommunication behind the bass, thereby it corresponds the compressible space of air to improve bass vibration system 7, be favorable to bass vibration system 7 sound production, simultaneously through flexible deformation piece 91 shutoff mounting hole 132, thereby make flexible deformation piece 91 take place deformation under the acoustic pressure influence that bass vibration system 7 produced, increase or reduce bass tuning chamber 72 space, increase bass tuning chamber 72's equivalent sound sequence, effectively reduce the resonant frequency of vocal module 100, promote low frequency sensitivity. In another embodiment, the sound emitting module 100 further includes a rear cavity cover 19 forming the low-pitched sound cavity 72 in cooperation with the bottom plate 13 and the side walls 15, and a sound absorbing material filled in the low-pitched sound cavity 72. The bass vibration system 7 is provided with sound-absorbing material to correspond to the air compressible space.

Referring to fig. 5, fig. 7 and fig. 8, the high-pitch vibration system 5 includes a retaining wall 55 disposed on the bottom plate 13, a high-pitch diaphragm 51 fixed on the retaining wall 55, and a high-pitch voice coil 53 for driving the high-pitch diaphragm 51 to vibrate, wherein the high-pitch diaphragm 51, the retaining wall 55 and the bottom plate 13 enclose a high-pitch front cavity 56 isolated from the low-pitch front cavity 76. By providing the retaining wall 55 such that the bass front chamber 76 and the treble front chamber 56 are independent of each other, the influence between each other is eliminated or reduced, and the sound quality of the sound module 100 is improved.

Retaining wall 55 is including locating first installation department 551 on bottom plate 13 with locate second installation department 553 on the first installation department 551, second installation department 553 is kept away from the one end of first installation department 551 with 3 butts of magnetic circuit, high pitch diaphragm 51 set firmly in on the second installation department 553, second installation department 553 is close to the one end of passageway piece 17 with bottom plate 13 looks interval sets up and forms the intercommunication high pitch play sound passageway 18 with the breach 58 of chamber 56 before the high pitch. In order to ensure that the treble front chamber 56 and the bass front chamber 76 are independent of each other, the first mounting portion 551 is an irregular half-enclosed structure having an opening, both ends of the opening formed by the first mounting portion 551 are connected to the duct member 17, the second mounting portion 553 is partially provided on the first mounting portion 551, a portion close to the duct member 17 is not connected to the first mounting portion 551, but is provided with a gap 58 spaced from the base plate 13, and the treble sound passage 18 and the treble front chamber 56 communicate with each other through the gap 58. To facilitate the mounting of the tweeter diaphragm 51, the first mounting portion 551 and the second mounting portion 553 cooperate to form a mounting step, and the edge of the tweeter diaphragm 51 is fixed to the second mounting portion 553.

Referring to fig. 5, 6 and 9, the bass vibration system 7 includes a bass diaphragm 71 disposed on the sidewall 15 and a bass voice coil 73 for driving the bass diaphragm 71 to vibrate, the bass diaphragm 71 and the upper cover 11 form a bass front cavity 76 therebetween, the bass diaphragm 71 and the magnetic circuit system 3 form a bass rear cavity 74 therebetween, and the treble front cavity 56 is isolated from the bass rear cavity 74. Further, the treble front chamber 56, treble tuning chamber 52 and treble back chamber 54 are isolated from the bass front chamber 76, bass back chamber 72 and bass back chamber 74, thereby isolating the chambers associated with the treble vibration system 5 from the chambers associated with the bass vibration system 7 and reducing the interaction between the treble vibration system 5 and the bass vibration system 7.

Referring to fig. 6, the first washer 35 includes a first magnetic conductive portion 351 attached to the magnetic steel assembly 33 and a second magnetic conductive portion 353 protruding from the first magnetic conductive portion 351 in a direction away from the bass vibration system 7, the through hole is formed in the second magnetic conductive portion 353, the second magnetic conductive portion 353 and the magnetic steel assembly 33 are disposed at an interval to form a second magnetic gap 34, and the treble voice coil 53 is inserted into the second magnetic gap 34. Form second magnetic conduction portion 353 to keeping away from the direction arch of bass vibrating diaphragm 71 through first magnetic conduction portion 351 to make second magnetic conduction portion 353 can with the interval setting between the magnetic steel assembly 33, again because first magnetic conduction portion 351 and second magnetic conduction portion 353 have the magnetic conduction effect, make and form second magnetic gap 34 between second magnetic conduction portion 353 and the magnetic steel assembly 33, thereby high pitch voice coil 53 inserts second magnetic gap 34, can drive high pitch vibrating diaphragm 51 vibration sound production under the circumstances that high pitch voice coil 53 passes through the electricity. Of course, in other embodiments, the magnetic gap for inserting the high-pitch voice coil 53 can be formed by arranging other structures of magnetic steel and/or magnetic conductive plates.

In this embodiment, the edge of the sealing member 31 is attached to the first magnetic conduction portion 351 to seal the opening of the first washer 35, and in other embodiments, the edge of the sealing member 31 may be connected to the second magnetic conduction portion 353 to seal the opening. Those skilled in the art can also adjust the connection position of the sealing member 31 and the second magnetic conductive part 353 according to the requirement, that is, the distance from the sealing member 31 to the low-pitch diaphragm 71 and the distance from the sealing member 31 to the high-pitch diaphragm 51 are adjusted, so as to adjust the volume of the high-pitch cavity 52 and the volume of the low-pitch back cavity 74 between the sealing member 31 and the low-pitch diaphragm 71.

In one embodiment, the magnetic steel assembly 33 includes a main magnetic steel 331 and a side magnetic steel 333 forming the first magnetic gap 32, the first magnetic conductive portion 351 is attached to the main magnetic steel 331, and the bass voice coil 73 is inserted into the first magnetic gap 32. The first magnetic conduction part 351 is attached to the main magnetic steel 331, and the main magnetic steel 331 and the side magnetic steel 333 are arranged at intervals at the same time, so that the magnetic steel assembly 33 can form a first magnetic gap 32 for inserting the bass voice coil 73 through the main magnetic steel 331 and the side magnetic steel 333, and the second magnetic conduction part 353, the main magnetic steel 331 and the side magnetic steel 333 are sequentially arranged at intervals, so that the size of the magnetic circuit system 3 is reduced on the basis of respectively forming the second magnetic gap 34 and the first magnetic gap 32.

Further, the magnetic circuit system 3 further includes a second washer 37 disposed on the side magnetic steel 333, and the first washer 35 and the second washer 37 are disposed on one side of the magnetic steel assembly 33 close to the bass diaphragm 71 and are respectively disposed on two opposite sides of the bass voice coil 73. That is, in the present embodiment, the magnetic circuit system 3 is provided with the first washer 35 and the second washer 37 at an end close to the bass diaphragm 71, so that the magnetic field of the bass voice coil 73 can be adjusted through the first washer 35 and the second washer 37.

Still further, the bass diaphragm 71 includes a bass main body portion 711, a bass ring-folded portion 713 and a bass fixing portion 715, which are sequentially connected from inside to outside, the bass fixing portion 715 is fixedly disposed on the sidewall 15, and the second washer 37 is provided with an avoiding groove 372 corresponding to the bass ring-folded portion 713. The low-pitched broken ring portion 713 may be vibrated in a space increased by providing the avoiding groove 372.

The magnetic circuit system 3 further comprises a third washer 39 disposed on one side of the magnetic steel assembly 33 close to the tweeter diaphragm 51, and the second mounting portion 553 is disposed on the third washer 39. The magnetic field of the treble voice coil 53 is further adjustable by means of a third washer 39.

Further, one end of the third washer 39 is disposed on the main magnetic steel 331, and the other end is disposed on the side magnetic steel 333. Thereby effectively realizing the magnetic conduction function between the main magnetic steel 331 and the side magnetic steel 333.

In one embodiment, in order to better make the bass vibration system 7 and the treble vibration system 5 share the same magnetic circuit system 3, the bass vibration system 7, the treble vibration system 5 and the first washer 35 are coaxially arranged.

The sound module 100 further includes a ventilation member 93 disposed at the through hole, and the high-pitch tuning cavity 52 is filled with a sound-absorbing material. By providing the sound absorbing material, the air compressible space corresponding to the high pitch diaphragm 51 is further improved.

In this embodiment, the air-permeable member 93 is an air-permeable net, the sound-absorbing material is sound-absorbing particles, and the diameter of the sound-absorbing particles is larger than the pore diameter of the air-permeable net. So as to realize that the ventilation part 93 has ventilation function and simultaneously avoid the noise elimination powder from leaking into the high-sound rear cavity 54 to influence the sound quality.

Further, the second magnetic conductive portion 353 includes a top wall 3531 spaced apart from the high-pitched diaphragm 51, and a magnetic conductive wall 3533 extending from the first magnetic conductive portion 351 toward the high-pitched diaphragm 51, the magnetic conductive wall 3533 forms the high-pitched sound cavity 52, the top wall 3531 extends from the magnetic conductive wall 3533 toward a central axis direction of the high-pitched sound cavity 52, and an edge of the air-permeable member 93 is connected to the top wall 3531. The magnetic conductive wall 3533 is spaced apart from the main magnetic steel 331 and forms a second magnetic gap 34. By providing the top wall 3531, the air permeable member 93 is easily installed.

The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. A sounding module is characterized by comprising a shell with an accommodating space, and a magnetic circuit system, a high-pitch vibration system and a low-pitch vibration system which are arranged in the accommodating space, wherein the magnetic circuit system comprises a sealing element, a magnetic steel assembly and a first washer attached to the magnetic steel assembly;

bass vibration system with treble vibration system branch is located magnetic circuit's relative both sides, bass vibration system with form the bass antechamber between the casing, treble vibration system with form the treble postchamber between the magnetic circuit, first china department to the protruding opening orientation that forms of direction of bass vibration system the treble tuning chamber of bass vibration system, the sealing member shutoff the opening, the through-hole intercommunication has been seted up on the first china department the treble sound chamber with the treble postchamber, seted up on the casing intercommunication exterior space with the treble sound outlet hole in treble antechamber and intercommunication exterior space with the bass sound outlet hole in bass antechamber.

2. The sound module of claim 1, wherein the housing includes a bottom plate and an upper cover opposite to each other, and a side wall connecting the bottom plate and the upper cover, and a channel member connected to the upper cover, the bottom plate, the side wall, the upper cover and the channel member cooperate to form the receiving space, the bass sound outlet hole and the treble sound outlet hole are spaced apart from each other on the channel member, the channel member is provided with a bass sound outlet passage connecting the bass sound outlet hole and the bass front cavity, and a treble sound outlet passage connecting the treble sound outlet hole and the treble front cavity.

3. The sound module of claim 2, wherein the high-pitch vibration system comprises a retaining wall disposed on the bottom plate, a high-pitch diaphragm fixedly disposed on the retaining wall, and a high-pitch voice coil for driving the high-pitch diaphragm to vibrate, and the high-pitch diaphragm, the retaining wall, and the bottom plate are enclosed to form the high-pitch front cavity isolated from the low-pitch front cavity.

4. The sound module of claim 3, wherein the retaining wall includes a first mounting portion disposed on the bottom plate and a second mounting portion disposed on the first mounting portion, the second mounting portion is away from one end of the first mounting portion and abuts against the magnetic circuit system, the high-pitched diaphragm is fixedly disposed on the second mounting portion, the second mounting portion is close to one end of the channel member and the bottom plate are arranged at intervals to form a gap for communicating the high-pitched sound channel and the high-pitched front cavity.

5. The sound module of claim 4, wherein the bass vibration system includes a bass diaphragm disposed on the sidewall and a bass voice coil for driving the bass diaphragm to vibrate, the bass diaphragm and the upper cover form the bass front cavity therebetween, the bass diaphragm and the magnetic circuit system form the bass rear cavity therebetween, and the treble front cavity is isolated from the bass rear cavity.

6. The sound module of claim 5, wherein the first washer includes a first magnetic conductive portion attached to the magnetic steel assembly and a second magnetic conductive portion protruding from the first magnetic conductive portion in a direction away from the bass vibration system, the through hole is formed in the second magnetic conductive portion, the second magnetic conductive portion and the magnetic steel assembly are spaced apart from each other to form a second magnetic gap, and the treble voice coil is inserted into the second magnetic gap.

7. The acoustic module of claim 6, wherein the magnetic steel assembly comprises a main magnetic steel and a side magnetic steel forming a first magnetic gap, the first magnetic conductive portion is attached to the main magnetic steel, and the bass voice coil is inserted into the first magnetic gap.

8. The sound production module of claim 7, wherein the magnetic steel assembly further comprises a third washer disposed on a side of the magnetic steel assembly close to the high-pitched diaphragm, and the second mounting portion is disposed on the third washer.

9. The sound generating module of claim 8, wherein one end of the third washer is disposed on the main magnetic steel, and the other end of the third washer is disposed on the side magnetic steel.

10. The sound production module of any one of claims 1 to 9, further comprising an air permeable member disposed at the through hole, wherein the high-pitch tuning cavity is filled with a sound absorbing material.