CN115361641B

CN115361641B - Loudspeaker module and sound box

Info

Publication number: CN115361641B
Application number: CN202211283828.3A
Authority: CN
Inventors: 孙晓慧
Original assignee: Weifang Goertek Electronics Co Ltd
Current assignee: Weifang Goertek Electronics Co Ltd
Priority date: 2022-10-20
Filing date: 2022-10-20
Publication date: 2023-01-24
Anticipated expiration: 2042-10-20
Also published as: CN115361641A

Abstract

The invention provides a loudspeaker module and a sound box, wherein the loudspeaker module comprises a main loudspeaker and an auxiliary loudspeaker, the main loudspeaker comprises a magnetic circuit system and a vibration system, a first vibrating diaphragm of the vibration system is covered at the port of a basin frame of the magnetic circuit system, the outer edge of the port of the basin frame is provided with a surrounding edge which is arranged along the circumferential direction of the basin frame in a surrounding way, and the rear end of the basin frame is provided with a wiring terminal; the auxiliary loudspeaker is arranged on one side, away from the magnetic circuit system, of the first vibrating diaphragm, is arranged at an interval with the first vibrating diaphragm and is used for emitting medium and high audio frequencies, and the conductive piece of the auxiliary loudspeaker penetrates through the surrounding edge and is electrically connected with the wiring terminal. The technical scheme of this application can improve the tone quality abundance and the analytic degree of audio amplifier, promotes user's tone quality and experiences.

Description

Loudspeaker module and sound box

Technical Field

The invention relates to the technical field of audio equipment, in particular to a loudspeaker module and a sound box.

Background

Along with intelligent audio amplifier's development, appear more and more with spherical or hemispherical audio amplifier structure on the market, the audio amplifier of this kind of shape, the space between speaker and the spherical inner wall is great, the audio frequency that leads to the well high-frequency range that the speaker sent produces the standing wave easily between first vibrating diaphragm of speaker and spherical inner wall, make the high-frequency sensitivity of the well high-frequency of speaker attenuate fast, the sound that leads to broadcasting has the high-frequency disappearance in the part, the tone quality abundance and the analytic degree of audio amplifier are relatively poor, tone quality is poor, influence user experience.

Disclosure of Invention

The invention mainly aims to provide a loudspeaker module and a sound box, and aims to improve the sound quality richness and the analysis degree of the sound box and improve the sound quality experience of a user.

In order to achieve the above object, the present invention provides a speaker module, including:

the main loudspeaker comprises a magnetic circuit system and a vibration system, a first diaphragm cover of the vibration system is arranged at a port of a basin frame of the magnetic circuit system, a surrounding edge arranged around the periphery of the basin frame is arranged at the outer edge of the port of the basin frame, and a wiring terminal is arranged at the rear end of the basin frame; and

the auxiliary loudspeaker is arranged on one side, deviating from the magnetic circuit system, of the first vibrating diaphragm, is arranged at an interval with the first vibrating diaphragm and is used for emitting medium and high audio frequencies, and the conductive piece of the auxiliary loudspeaker penetrates through the surrounding edge and is electrically connected with the wiring terminal.

In an embodiment of the speaker module, the through hole has been seted up to the surrounding edge, electrically conductive piece wears to locate the through hole, electrically conductive piece with it has sealed glue to fill between the pore wall of through hole.

In an embodiment of the speaker module of the present application, the connection terminal includes:

the connecting piece is arranged on the basin frame and is electrically connected with the magnetic circuit system, the connecting piece is provided with two ends which are arranged at intervals, and the conductive piece is electrically connected with the connecting piece; and

and the two wiring pieces are respectively electrically connected with the two ends of the connecting piece and are used for connecting electricity.

In an embodiment of the speaker module of the present application, the auxiliary speaker is a piezoelectric speaker.

In an embodiment of the speaker module of the present application, the piezoelectric speaker includes:

the mounting frame is erected in front of the first vibrating diaphragm and is arranged at an interval with the first vibrating diaphragm, and a hollow hole is formed in the mounting frame and corresponds to the first vibrating diaphragm; and

the second vibrating diaphragm is embedded in the hollow hole and arranged opposite to the first vibrating diaphragm, and the second vibrating diaphragm is electrically connected with the conductive piece.

In an embodiment of the speaker module of the present application, the mounting frame includes:

the main body part is arranged in front of the first vibrating diaphragm and provided with the hollow hole; and

the connecting part extends from the main body part to the outer side of the first vibrating diaphragm and is fixedly connected with the surrounding edge.

In an embodiment of the speaker module of the present application, the speaker module further includes a locking member, and the locking member sequentially penetrates through the connecting portion and the surrounding edge to connect the connecting portion and the surrounding edge;

and/or, the speaker module still includes the shock pad, the shock pad presss from both sides and locates connecting portion with between the surrounding edge.

In an embodiment of the speaker module, the mounting frame is provided with a limiting groove at an outer edge of the hollow hole, and a part of the conductive member is disposed in the limiting groove;

and/or the second vibrating diaphragm is provided with a through hole, and the through hole is arranged corresponding to the first vibrating diaphragm;

and/or the second diaphragm comprises a vibrating piece and at least one piezoelectric piece, wherein the at least one piezoelectric piece is stacked on the surface of the vibrating piece, and the piezoelectric piece is electrically connected with the conductive piece.

In one embodiment of the speaker module, the speaker module further comprises an installation shell and a connecting terminal, a sound cavity is formed in the installation shell, the installation shell is provided with an installation port communicated with the sound cavity, and the connecting terminal penetrates through the sound cavity to the outside of the installation shell;

the basin frame is inserted and located the installing port just the surrounding edge with the outer fringe fixed connection of installing port is in order to seal the sound chamber, binding post with be located the part in sound chamber the connecting terminal electricity is connected, assist the speaker and locate outside the installing port, electrically conductive piece wears to locate the installing port extends to basin frame rear end with binding post is connected.

This application still provides an audio amplifier, the audio amplifier includes:

the loudspeaker comprises a shell, a sound absorbing body and a sound absorbing body, wherein a mounting cavity is formed in the shell, at least part of the wall of the mounting cavity is a concave arc surface, and a sound raising hole for communicating the outside with the mounting cavity is formed in the concave arc surface; and

the speaker module as claimed in any one of the above claims, wherein the speaker module is disposed in the mounting cavity, the main speaker cover is disposed on the concave arc surface, and encloses a front cavity of the main speaker with the concave arc surface, and the auxiliary speaker is disposed in the front cavity.

According to the technical scheme, the loudspeaker module comprises a main loudspeaker and an auxiliary loudspeaker, the main loudspeaker can emit sound of full audio frequency, and the auxiliary loudspeaker can emit sound of medium-high frequency. Meanwhile, when the loudspeaker module is applied to a sound box, the auxiliary loudspeaker can be positioned in a front cavity formed by the main loudspeaker and the inner wall of the sound box in an enclosing mode and is arranged at an interval with the first vibrating diaphragm of the main loudspeaker, and the auxiliary loudspeaker is arranged in such a way that the arrangement of the auxiliary loudspeaker cannot influence the vibration and sound production of the first vibrating diaphragm, so that the outward radiation of low-frequency sound with weak directivity cannot be influenced; the space size of the front cavity of the main loudspeaker can be reduced through the auxiliary loudspeaker, and the sound cancellation phenomenon generated by multiple reflections of the short-wavelength medium-high frequency sound wave emitted by the main loudspeaker in the front cavity is effectively relieved; meanwhile, the middle-high frequency sound emitted by the auxiliary loudspeaker can make up the middle-high frequency sound lost by the front cavity effect of the main loudspeaker, and plays a role in superposition compensation of the middle-high frequency sound, so that the sound played by the sound box comprises middle-high and low frequency bands, and the sound analysis and restoration degree and the quality richness of the sound box are ensured.

Simultaneously, because can superpose the compensation through auxiliary loudspeaker to high-frequency sound and guarantee the broadcast effect of medium-high frequency sound, main loudspeaker alright in order to be more inclined to the broadcast of low-frequency sound this moment makes the low frequency effect of audio amplifier further promote, better reduction sound improves audio amplifier tone quality. That is, according to the technical scheme of the invention, the main loudspeaker and the auxiliary loudspeaker are combined to form the loudspeaker module, so that the replay effect of the sound box in the middle and high frequency ranges can be better improved, the middle and high frequency richness is improved, the sound field of the sound box is wider, the definition of the sound quality is improved, the sound quality richness and the analysis and reduction degree of the sound box are improved, and the auditory experience of a user is improved.

In addition, the auxiliary loudspeaker is used for receiving the conductive piece of the control signal and is worn to locate the frame surrounding edge and is electrically connected with the wiring terminal located at the rear end of the frame from the frame port front side of the main loudspeaker, the main loudspeaker and the auxiliary loudspeaker can be set into a whole in the production stage, and the situation that the main loudspeaker is installed and the conductive piece is connected through a hole in the installation shell of the main loudspeaker is avoided, the convenient degree of wiring of the auxiliary loudspeaker is improved, thereby the whole structure is ensured to have air tightness when the whole assembly convenience is improved, and the loudspeaker module is further enabled to have a better sounding effect.

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 structural diagram of a speaker module according to a first embodiment of the present invention;

fig. 2 is an exploded view of the speaker module of fig. 1;

FIG. 3 is a diagram of a second embodiment of a speaker module according to the present invention;

fig. 4 is an exploded view of the speaker module of fig. 3;

FIG. 5 is a structural diagram of an embodiment of the speaker of the present invention;

FIG. 6 is a cross-sectional view of the enclosure of FIG. 5;

FIG. 7 is an exploded view of the enclosure of FIG. 5;

fig. 8 is an audio simulation diagram of the sound box of the present invention.

The reference numbers illustrate:

reference numerals	Name (R)	Reference numerals	Name(s)
				100	Sound box	1335	Through hole
10	Loudspeaker module	135	Conductive member
				11	Main loudspeaker	15	Locking part
111	Magnetic circuit system	17	Shock pad
				1111	Basin rack	19	Mounting shell
1111a	Surrounding edge	191	Sound cavity
				1111b	Pressure relief hole	193	Connecting terminal
1111c	Locating hole	195	Mounting port
				113	Vibration system	197	Mounting groove
1131	First diaphragm	199	Positioning column
				115	Connecting terminal	20	Shell body
1151	Connecting piece	21	Front shell
				1153	Wiring piece	211	Speaker hole
13	Auxiliary loudspeaker	213	Front cavity
				131	Mounting frame	23	Rear shell
1311	Main body part	25	Mounting cavity
				1313	Connecting part	27	Charging interface
1315	Hollow hole	29	Push-button
				1317	Spacing groove	30	Shock insulation pad
133	Second diaphragm	40	Main control board
				1331	Vibrating reed	50	Net cloth
1333	Piezoelectric patch

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 described clearly and completely 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 obtained by a person skilled in the art without inventive step based on the embodiments of the present invention, are within the scope of protection of the present invention.

It should be noted that all directional indicators (such as up, down, left, right, front, back \8230;) in the embodiments of the present invention are only used to explain the relative positional relationship between the components, the motion situation, etc. in a specific posture (as shown in the attached drawings), and if the specific posture is changed, the directional indicator is changed accordingly.

In the present invention, unless otherwise expressly stated or limited, the terms "connected," "secured," and the like are to be construed broadly, and for example, "secured" may be a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In addition, descriptions such as "first", "second", etc. in the present invention are used 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.

In view of the problems in the background art, the speaker module 10 and the sound box 100 provided by the present invention can improve the sound quality richness and the analysis and restoration degree of the sound box 100, thereby improving the hearing experience of the user.

The structure of the speaker module 10 and the sound box 100 of the present application will be explained in the following embodiments.

Referring to fig. 1 and 2, in some embodiments of the speaker module 10 of the present application, the speaker module 10 includes:

the main loudspeaker 11 comprises a magnetic circuit system 111 and a vibration system 113, a first vibrating diaphragm 1131 of the vibration system 113 is covered at a port of a basin frame 1111 of the magnetic circuit system 111, a surrounding edge 1111a arranged around the basin frame 1111 in the circumferential direction is arranged at the outer edge of the port of the basin frame 1111, and a connecting terminal 115 is arranged at the rear end of the basin frame 1111; and

and the auxiliary loudspeaker 13 is arranged on one side, departing from the magnetic circuit system 111, of the first diaphragm 1131, the auxiliary loudspeaker 13 is arranged at an interval with the first diaphragm 1131 and is used for emitting medium and high audio frequencies, and the conductive piece 135 of the auxiliary loudspeaker 13 penetrates through the surrounding edge 1111a and is electrically connected with the wiring terminal 115.

The utility model provides a speaker module 10, be applied to in audio amplifier 100, speaker module 10 includes main speaker 11 and auxiliary speaker 13, wherein, main speaker 11 is full-range speaker, mostly be moving coil loudspeaker, be the electroacoustic ring of using the electrodynamic principle can the device, including magnetic circuit 111 and vibration system 113, it is common, magnetic circuit 111 includes basin frame 1111 as the installation basis and locates the magnet in basin frame 1111 and the magnetic conduction board that is fixed in the magnet surface, vibration system 113 includes first vibrating diaphragm 1131 and voice coil loudspeaker voice coil, the voice coil loudspeaker voice coil cover is located magnet and is connected with first vibrating diaphragm 1131, the voice coil loudspeaker voice coil is connected with the binding post 115 electricity of locating basin frame 1111 rear end, binding post 115 is used for being connected with main control board 40 electricity of audio amplifier 100, in order to transmit the electric signal that main control board 40 sent to the voice coil loudspeaker voice coil, just produce the magnetic field of alternation under the effect of electric current after the voice coil loudspeaker voice coil of main speaker 11 lets in the audio current, permanent magnet also produces a size and the invariable magnetic field of direction simultaneously. Because the size and direction of the magnetic field generated by the voice coil are constantly changed along with the change of the audio current, the interaction of the two magnetic fields enables the voice coil to move in a direction perpendicular to the current direction in the voice coil, and the voice coil is connected with the first vibrating diaphragm 1131 so as to drive the first vibrating diaphragm 1131 to vibrate, and the first vibrating diaphragm 1131 vibrates to cause the vibration of air and make sound, at this time, the first vibrating diaphragm 1131 vibrates to generate vibration with different amplitudes according to the difference of the strength of the input electric signal, so that the main loudspeaker 11 can make sound with full audio frequency.

The auxiliary speaker 13 is disposed on a side of the first diaphragm 1131 of the main speaker 11, which is away from the magnetic circuit system 111, the auxiliary speaker 13 can emit a medium-high frequency tone, which can be a thermal sounding speaker, that is, a thermal sounding film is used for sounding, specifically, when the thermal sounding film generates heat, the air around the thermal sounding film can be heated, so that the air vibrates to sound, and a sound frequency band emitted by the thermal sounding film can reach a medium-high frequency band; alternatively, the auxiliary speaker 13 may be a piezoelectric speaker as described in the following embodiments, the deformation of the piezoelectric material in the electric field changes drives the vibration piece 1331 to vibrate so as to make the air vibrate and generate sound, the sound frequency range generated by the vibration piece can reach the middle and high frequency range, and the auxiliary speaker 13 may also be other types of speakers, which is not limited herein. The auxiliary loudspeaker 13 is located in front of the first vibrating diaphragm 1131 of the main loudspeaker 11, and is arranged at an interval with the first vibrating diaphragm 1131, so that due to the low directivity of the low-frequency sound emitted by the main loudspeaker 11, the low-frequency sound can be transmitted from the gap between the auxiliary loudspeaker 13 and the first vibrating diaphragm 1131 to the gap between the auxiliary loudspeaker 13 and the concave arc surface, and then radiated from the sound-emitting hole 211, so as to avoid the influence of the arrangement of the auxiliary loudspeaker 13 on the propagation of the low-frequency sound wave, and ensure the low-frequency effect of the sound box 100; meanwhile, when the speaker module 10 is installed in the housing 20 of the sound box 100, the size of the front cavity 213 of the main speaker 11 is reduced, so that the number of times of reflecting the medium-high frequency sound emitted by the main speaker 11 in the front cavity 213 can be reduced, and the offset loss of the sound emitted by the main speaker 11 in the front cavity 213 can be reduced; meanwhile, the middle-high frequency sound emitted by the auxiliary loudspeaker 13 can be superposed on the sound emitted by the main loudspeaker 11 to compensate the middle-high frequency loss of the main loudspeaker 11 caused by the front cavity 213 effect, so that the sound played by the sound box 100 comprises middle-high and low frequency bands, and the sound analysis and restoration degree and the quality richness of the sound box 100 are ensured. On the other hand, because audio amplifier 100 mainly sends high-frequency sound by auxiliary speaker 13 this moment, alright make main speaker 11 mainly used send low-frequency sound to improve audio amplifier 100's low-frequency sound effect, thereby make audio amplifier 100 optimize the low-frequency sound effect when improving the playback effect and the abundance of well high-frequency range, further improve audio amplifier 100's tone quality abundance and analysis reduction degree, promote user's sense of hearing and experience.

In addition, in some embodiments, a thermal sound generating device or a piezoelectric speaker is used as the auxiliary speaker 13, and the sound generating frequency band thereof can extend from 400Hz to 40KHz. Although the frequency of sound that can be perceived by human body is only 20Hz to 20kHz, the sound in daily life is composed of fundamental frequency and overtone, that is, the sound itself includes both audible sound and inaudible sound, if only the auxiliary speaker 13 is enabled to emit sound in the audio frequency range that can be heard by human body, but not including sound of other frequencies, the waveform of the sound will change, resulting in audio distortion and poor audio reproduction. The combination of the main loudspeaker 11 and the auxiliary loudspeaker 13 is adopted, so that the sound range emitted by the sound box 100 is between 0 and 40kHz, the sound box 100 can have high audio frequency restoring degree, the sound emitted by the sound box is closer to the original sound, and a user has good hearing experience.

Further, in this embodiment, the peripheral edge 1111a is disposed at the outer edge of the frame 1111 of the main speaker 11, the peripheral edge 1111a is circumferentially disposed along the circumferential direction of the frame 1111, and meanwhile, the conductive member 135 for receiving the control electrical signal on the auxiliary speaker 13 is disposed through the peripheral edge 1111a and extends to the rear end of the frame 1111 to be electrically connected to the connection terminal 115, so as to connect the main speaker 11 and the auxiliary speaker 13 in the production phase, so as to electrically connect the conductive member 135 of the auxiliary speaker 13 to the connection terminal 115 of the main speaker 11 first, so as to be disposed, when the speaker module 10 is applied to the sound box 100, it is only necessary to connect the connection terminal 115 of the main speaker 11 to the main control board 40, and it is not necessary to connect the auxiliary speaker 13, thereby improving the convenience of the connection of the auxiliary speaker 13, and in some embodiments, in order to improve the sound effect of the main speaker 11, the mounting case 19 is disposed to increase the rear cavity of the main speaker 11 to form a structure similar to the closed type sound box 100, at this time, it is not necessary to dispose the insertion hole for the conductive member 135 to be disposed on the mounting case 19, thereby ensuring the airtightness of the whole structure, and further enabling the speaker module 10 to have a good sound effect.

Furthermore, since the auxiliary speaker 13 and the main speaker 11 are electrically connected to the main control board 40 through the same connection terminal 115, the main control board 40 simultaneously sends the same electrical signals to the main speaker 11 and the auxiliary speaker 13, thereby ensuring that the middle-high frequency reproduced by the auxiliary speaker 13 and the middle-high frequency reproduced by the main speaker 11 are in the same phase, effectively improving the middle-high frequency stacking effect of the auxiliary speaker 13 and the main speaker 11, and improving the sound quality of the sound box 100.

Therefore, it can be understood that, according to the technical solution of the present invention, the speaker module 10 includes the main speaker 11 and the auxiliary speaker 13, the main speaker 11 can emit sound of full audio frequency, and the auxiliary speaker 13 can emit sound of medium-high frequency. Meanwhile, when the speaker module 10 is applied to the sound box 100, the auxiliary speaker 13 may be located in the front cavity 213 formed by the main speaker 11 and the inner wall of the sound box 100, and is spaced from the first diaphragm 1131 of the main speaker 11, so that the arrangement of the auxiliary speaker 13 does not affect the vibration and sound production of the first diaphragm 1131, and thus does not affect the outward radiation of the low-frequency sound with weak directivity; the auxiliary speaker 13 can also reduce the size of the front cavity 213 of the main speaker 11, so as to effectively relieve the sound cancellation phenomenon generated by multiple reflections of the short-wavelength medium-high frequency sound wave emitted by the main speaker 11 in the front cavity 213; meanwhile, the middle-high frequency sound emitted by the auxiliary loudspeaker 13 can compensate the middle-high frequency sound lost by the front cavity 213 effect of the main loudspeaker 11, and plays a role in superposition compensation of the middle-high frequency sound, so that the sound played by the sound box 100 comprises middle-high and low frequency bands, and the sound analysis and restoration degree and the quality richness of the sound box 100 are ensured.

Meanwhile, because the middle and high frequency sounds can be superposed and compensated through the auxiliary loudspeaker 13 to ensure the playing effect of the middle and high frequency sounds, at this time, the main loudspeaker 11 can be more inclined to the playing of the low frequency sounds, so that the low frequency effect of the sound box 100 is further improved, the sound is better restored, and the tone quality of the sound box 100 is improved. Referring to fig. 8, according to the technical solution of the present invention, the main speaker 11 and the auxiliary speaker 13 are combined to form the speaker module 10, so that the playback effect of the sound box 100 in the middle and high frequency ranges can be better improved, the middle and high frequency richness is improved, the sound field of the sound box 100 is wider, and meanwhile, the definition of the sound quality is improved, so that the sound quality richness and the analysis and restoration degree of the sound box 100 are improved, and the hearing experience of a user is improved.

In addition, the auxiliary speaker 13 is used for receiving the conductive piece 135 of control signal and wears to locate basin frame 1111 surrounding edge 1111a and the binding post 115 electricity that is located the basin frame 1111 rear end from the basin frame 1111 port front side of the main speaker 11, can just set up main speaker 11 and auxiliary speaker 13 as an organic whole in the production phase, and avoided trompil in order to connect conductive piece 135 on the installation shell 19 of installation main speaker 11, the convenient degree of wiring of auxiliary speaker 13 has been improved, thereby when improving whole assembly convenience, the gas tightness of overall structure has been guaranteed, further make speaker module 10 have better sound effect.

In an embodiment of the speaker module 10, the surrounding edge 1111a is provided with a through hole 1335, the conductive element 135 is disposed through the through hole 1335, and a sealant is filled between the conductive element 135 and a hole wall of the through hole 1335.

In this embodiment, the surrounding edge 1111a is provided with a through hole 1335 for penetrating the conductive element 135, and meanwhile, a sealant is filled between the hole wall of the through hole 1335 and the conductive element 135, so as to prevent the bass performance of the main speaker 11 from being affected by the air leakage phenomenon at the through hole 1335. The sealant has good fluidity, can fully fill a gap between the conductive element 135 and the wall of the through hole 1335, and can play a role in fixing the conductive element 135, so as to prevent the conductive element 135 from vibrating along with vibration of the main speaker 11 or the auxiliary speaker 13, which causes mutual friction between the conductive element 135 and the wall of the through hole 1335 to cause abrasion, thereby improving the use safety of the speaker module 10.

Referring to fig. 2, in some embodiments of the speaker module 10 of the present application, the connection terminal 115 includes:

a connecting member 1151, wherein the connecting member 1151 is disposed on the basin stand 1111 and electrically connected to the magnetic circuit system 111, the connecting member 1151 has two ends spaced apart from each other, and the conductive member 135 is electrically connected to the connecting member 1151; and

and two wire connecting pieces 1153, wherein the two wire connecting pieces 1153 are electrically connected with two ends of the connecting piece 1151 respectively and used for connecting power.

It will be appreciated that in order to form a complete circuit, the terminals 115 of the main speaker 11 need to be respectively provided with positive and negative electrodes to electrically connect with the positive and negative electrodes of the main control board 40. In this embodiment, the connection terminal 115 of the main speaker 11 includes a connection member 1151 and two connection members 1153, the connection member 1151 is disposed on the outer wall of the tub 1111 and has two ends spaced apart from each other to connect the two connection members 1153, respectively, so as to form positive and negative connection positions; at this time, the conductive member 135 of the auxiliary speaker 13 may be an FPC (flexible circuit board), and the flexible circuit board is electrically connected to the connecting member 1151 in parallel with the two wiring members 1153, so that the middle and high frequencies reproduced by the auxiliary speaker 13 are in phase with the middle and high frequencies reproduced by the main speaker 11, thereby effectively improving the middle and high frequency stacking effect of the auxiliary speaker 13 and the main speaker 11, and improving the sound quality of the sound box 100.

Referring to fig. 2, in some embodiments of the speaker module 10 of the present application, the auxiliary speaker 13 is a piezoelectric speaker.

In this embodiment, the auxiliary speaker 13 is a piezoelectric speaker, wherein the second diaphragm 133 of the piezoelectric speaker includes a vibrating piece 1331 and a piezoelectric piece 1333, the vibrating piece 1331 may be, but is not limited to, a metal sheet, a piezoelectric ceramic sheet, a film material, and the like, and when vibrating, the vibrating piece will drive air to vibrate and sound; the piezoelectric sheet 1333 is a sheet structure made of a piezoelectric material, and may be a material such as piezoelectric ceramic, polyvinylidene fluoride, etc., and is attached to a side surface of the vibrating piece 1331, and is electrically connected to the main control board 40 of the sound box 100 to receive an electrical signal output by the main control board 40, so that an electric field around the piezoelectric sheet 1333 changes to drive the piezoelectric sheet 1333 to deform, at this time, the piezoelectric sheet 1333 expands or contracts under the action of the electric field, and thus the vibrating piece 1331 is driven to vibrate and sound, for example, when the piezoelectric sheet 1333 is stacked on a side surface of the vibrating piece 1331 away from the main speaker 11, if the piezoelectric sheet 1333 expands, the vibrating piece 1331 bends towards a side away from the speaker, and if the piezoelectric sheet 1333 contracts, the vibrating piece 1331 bends towards a side close to the speaker, so that only the electric field of the piezoelectric sheet 1333 needs to be frequently changed, the piezoelectric sheet 1333 can drive the vibrating piece 1331 to vibrate back and forth to sound, and the piezoelectric speaker has a small overall structure and good middle-high sound characteristic, and can play a good role in compensating medium-high sound quality for the main speaker 11, and improving sound quality of the sound box 100.

Referring to fig. 2, in some embodiments of the speaker module 10 of the present application, the piezoelectric speaker includes:

the mounting frame 131 is erected in front of the first diaphragm 1131 and is arranged at an interval with the first diaphragm 1131, a hollow 1315 is formed in the mounting frame 131, and the hollow 1315 is arranged corresponding to the first diaphragm 1131; and

a second diaphragm 133, wherein the second diaphragm 133 is embedded in the hollow hole 1315, and is disposed opposite to the first diaphragm 1131, and the second diaphragm 133 is electrically connected to the conductive member 135.

In this embodiment, the piezoelectric speaker includes an installation frame 131 and a second diaphragm 133, the installation frame 131 provides an installation basis for installing the second diaphragm 133, the second diaphragm 133 is embedded in a hollow hole 1315 of the installation frame 131, and the hollow hole 1315 is configured to avoid the second diaphragm 133 when the second diaphragm 133 vibrates, so as to avoid affecting the vibration of the second diaphragm 133. With such an arrangement, the piezoelectric speaker can be assembled and then the mounting frame 131 is fixedly connected to the main speaker 11, so that the second diaphragm 133 is located in front of the first diaphragm 1131 and is disposed opposite to the first diaphragm 1131, and the assembly is simple. Meanwhile, the main speaker 11 and the auxiliary speaker 13 are combined into an integrated structure with stable relative positions, so as to improve the convenience of assembly when the speaker module 10 is applied to the sound box 100.

Referring to fig. 4, in some embodiments of the speaker module 10 of the present application, the second diaphragm 133 includes a vibrating piece 1331 and at least one piezoelectric sheet 1333, at least one of the piezoelectric sheets 1333 is stacked on a surface of the vibrating piece 1331, and the piezoelectric sheet 1333 is electrically connected to the conductive member 135.

It can be understood that the piezoelectric speaker mainly vibrates the surrounding air by changing the electric field to drive the piezoelectric piece 1333 to deform and drive the second diaphragm 133 to vibrate as a whole. The second diaphragm 133 of the piezoelectric speaker includes a vibrating piece 1331 and a piezoelectric piece 1333, where the vibrating piece 1331 may be, but is not limited to, a metal sheet, a piezoelectric ceramic sheet, a film material, and the like, and the vibrating piece 1331 drives air to vibrate and generate sound when vibrating; the piezoelectric sheet 1333 is a sheet structure made of a piezoelectric material, and may be a piezoelectric ceramic, polyvinylidene fluoride, or the like, and is attached to a side surface of the vibrating piece 1331, and is electrically connected to the main control board 40 of the sound box 100 through the conductive member 135 to receive an electrical signal output by the main control board 40, so that an electric field around the piezoelectric sheet 1333 changes to drive the piezoelectric sheet 1333 to deform, at this time, the piezoelectric sheet 1333 expands or contracts under the action of the electric field, and thus the vibrating piece 1331 is driven to vibrate and generate sound, for example, when the piezoelectric sheet 1333 is stacked on a side surface of the vibrating piece 1331 away from the main speaker 11, if the piezoelectric sheet 1333 expands, the vibrating piece 1331 bends towards a side away from the main speaker 11, and if the piezoelectric sheet 1333 contracts, the vibrating piece 1331 bends towards a side close to the main speaker 11, so that only the electric field of the piezoelectric sheet 1333 needs to be frequently changed, and the piezoelectric sheet 1333 can drive the vibrating piece 1331 to vibrate back and forth to generate sound.

Further, in some embodiments, the number of the piezoelectric sheets 1333 is greater than one, in this case, several piezoelectric sheets 1333 are stacked on the surface of the vibrating plate 1331, and the arrangement of the plurality of piezoelectric sheets 1333 can improve the rigidity of the vibrating plate 1331, improve the low-frequency performance of the piezoelectric speaker, and reduce distortion, so that the sound quality of the piezoelectric speaker is better. In the present embodiment, the plurality of piezoelectric sheets 1333 may be disposed on the same side surface of the vibrating piece 1331, or disposed on different surfaces of the vibrating piece 1331, and when the plurality of piezoelectric sheets 1333 are disposed on different surfaces of the vibrating piece 1331, the electric fields of the piezoelectric sheets 1333 on the two side surfaces are opposite, which is not limited herein.

In some embodiments, the vibrating piece 1331 is connected to the mounting frame 131 by an adhesive.

In this embodiment, when the vibrating piece 1331 is covered on the hollow hole 1315 of the mounting frame 131, the vibrating piece is bonded to the mounting frame 131 by an adhesive, so that the connection structure is simple and the assembly is convenient.

In some embodiments, a surface of the mounting frame 131 facing the vibrating plate 1331 is provided with a glue groove extending along a circumferential direction of the hollow hole 1315, and the adhesive is disposed in the glue groove.

In this embodiment, the surface of the mounting frame 131 facing the vibrating piece 1331 is provided with a glue groove for filling an adhesive, and the adhesive can be injected into the glue groove first when the vibrating piece 1331 is adhered to the mounting frame 131, and the glue groove can prevent the adhesive from flowing to other positions and affecting the adhesion of the vibrating piece 1331, and if the adhesive flows to the middle of the vibrating piece 1331, the vibrating ability of the vibrating piece 1331 can be affected and the electroacoustic conversion characteristics can be affected.

Referring to fig. 2, in some embodiments of the speaker module 10 of the present application, the mounting frame 131 includes:

a main body 1311, wherein the main body 1311 is disposed in front of the first diaphragm 1131 and is provided with the hollow hole 1315; and

a connection portion 1313, where the connection portion 1313 extends from the main body portion 1311 to the outside of the first diaphragm 1131, and is fixedly connected to the surrounding edge 1111a.

In this embodiment, the mounting frame 131 includes a main body 1311 and a connecting portion 1313, the main body 1311 is disposed in front of the first diaphragm 1131 of the main speaker 11 and is opened with the hollow hole 1315, the connecting portion 1313 extends from the main body 1311 to an outer side of the first diaphragm 1131 to be fixedly connected to the main speaker 11, and may be connected to the frame 1111 of the main speaker 11, or fixed to the mounting case 19 when the main speaker 11 is provided with the mounting case 19, which is not limited herein. So set up, alright make main part 1311 hang and establish in first vibrating diaphragm 1131 the place ahead, set up with first vibrating diaphragm 1131 interval, avoid influencing the vibration sound production and the propagation of low frequency sound of the first vibrating diaphragm 1131 of main loudspeaker 11 because of the setting up of auxiliary loudspeaker 13. The connecting portions 1313 may be provided in plurality, and the plurality of connecting portions 1313 are provided at intervals in the circumferential direction of the main body portion 1311, so that the stability of the connection structure between the main speaker 11 and the auxiliary speaker 13 is improved.

Referring to fig. 1, in some embodiments of the speaker module 10 of the present application, the speaker module 10 further includes a locking member 15, and the locking member 15 is sequentially disposed through the connecting portion 1313 and the surrounding edge 1111a to connect the connecting portion 1313 and the surrounding edge 1111a.

In this embodiment, the connection portion 1313 of the mounting frame 131 is fixedly connected to the peripheral edge 1111a of the frame 1111 through a locking member 15 such as a screw, wherein a screw hole may be formed on the peripheral edge 1111a, and the screw is inserted into the connection portion 1313 and screwed into the screw hole. It can be understood that the screw locking has a high connection stability, and avoids that the connection is loosened due to the vibration energy transferred to the connection position between the connection portion 1313 and the surrounding edge 1111a when the first diaphragm 1131 of the main speaker 11 vibrates or the second diaphragm 133 of the piezoelectric speaker vibrates, which causes the sound production effect to be affected by the unstable fixation of the main speaker 11 and the piezoelectric speaker.

In addition, in some embodiments, when the speaker module 10 is further provided with the installation shell 19, an extension portion may be convexly provided on the inner wall of the installation shell 19, the extension portion is provided corresponding to the screw hole, and the screw hole extends into the extension portion, so as to prevent the wall thickness of the installation shell 19 from being thin and unable to play a stable connection role, and the extension portion can deepen the depth of the screw hole, and a longer screw is used for locking, thereby improving the connection stability of the overall structure.

Referring to fig. 2, in some embodiments of the speaker module 10 of the present application, the speaker module 10 further includes a shock pad 17, and the shock pad 17 is sandwiched between the connecting portion 1313 and the surrounding edge 1111a.

It will be appreciated that whether a moving coil speaker, a thermal sound generator, or a piezoelectric speaker is used, it is essential that the first diaphragm 1131 vibrates or changes temperature to drive the ambient air to vibrate and generate sound. In this embodiment, the shock absorbing pad 17 is disposed between the surrounding edge 1111a and the connecting portion 1313 to reduce the mutual transmission of the vibration energy of the main speaker 11 and the auxiliary speaker 13 during the vibration sound production, thereby avoiding the mutual influence of the vibration between the main speaker 11 and the auxiliary speaker 13 and affecting the sound production effect of the speaker module 10. The cushion 17 may be only disposed between the surrounding edge 1111a and the connection portions 1313, and when a plurality of connection portions 1313 are provided, the cushion 17 is correspondingly disposed at each connection portion 1313, or the cushion 17 may be disposed around the surrounding edge 1111 a; the cushion 17 may be made of an elastic material such as sponge or rubber, and is not limited herein.

Referring to fig. 1, in some embodiments of the speaker module 10 of the present application, the mounting frame 131 is formed with a limiting groove 1317 at an outer edge of the hollow hole 1315, and a portion of the conductive member 135 is disposed in the limiting groove 1317.

In this embodiment, the mounting frame 131 is provided with a limiting groove 1317, and the limiting groove 1317 is communicated with the hollow hole 1315, so that one end of the conductive member 135 is limited in the limiting groove 1317 and electrically connected to the second diaphragm 133. The limiting groove 1317 may limit the conductive element 135, so as to improve the position stability of the conductive element 135 and the connection stability between the conductive element 135 and the second diaphragm 133.

Referring to fig. 3 and 4, in some embodiments of the speaker module 10 of the present application, the speaker module 10 further includes a mounting shell 19 and a connection terminal 193, a sound cavity 191 is formed in the mounting shell 19, the mounting shell 19 is opened with a mounting port 195 communicating with the sound cavity 191, and the connection terminal 193 penetrates through the sound cavity 191 to the outside of the mounting shell 19;

the frame 1111 is inserted into the mounting opening 195, the surrounding edge 1111a is fixedly connected with the outer edge of the mounting opening 195 to seal the sound cavity 191, the connection terminal 115 is electrically connected with the connection terminal 193 which is located in the sound cavity 191, the auxiliary speaker 13 is arranged outside the mounting opening 195, and the conductive member 135 penetrates through the mounting opening 195 and extends to the rear end of the frame 1111 to be connected with the connection terminal 115.

In this embodiment, the speaker module 10 further includes an installation shell 19, be formed with sound cavity 191 in the installation shell 19, installation shell 19 sets up the installing port 195 of intercommunication sound cavity 191, make at least partial basin frame 1111 insert locate in installing port 195, and make first vibrating diaphragm 1131 set up outside the installing port 195, so that auxiliary speaker 13 is located outside the installing port 195, and simultaneously, set up intercommunication basin frame 1111 on the basin frame 1111 and hold the pressure release hole 1111b that holds chamber and sound cavity 191, so set up, alright in order to increase the back sound cavity of main speaker 11 with sound cavity 191 through installation shell 19, improve the low-frequency sound effect of main speaker 11, make the low-frequency sound effect more mellow, improve the degree of reduction of low-frequency sound effect, thereby improve the sound quality of full audio amplifier 100. At this moment, the wiring terminal 115 of the main speaker 11 is arranged in the sound cavity 191 to protect the wiring terminal 115, in addition, the conductive piece 135 of the auxiliary speaker 13 penetrates through the basin frame 1111 of the main speaker 11 and then extends into the sound cavity 191 from the mounting port 195 of the mounting shell 19 to be connected with the wiring terminal 115 of the main speaker 11, so the arrangement is realized, an opening on the mounting shell 19 is not needed, the main speaker 11 and the auxiliary speaker 13 can be assembled into a whole and then installed in the mounting port 195, the wiring convenience of the auxiliary speaker 13 is improved, the air tightness of the whole structure is ensured while the whole assembly convenience is improved, and the speaker module 10 has a better sound-producing effect.

Further, when the sound cavity 191 is completely closed, the main speaker 11 forms a structure similar to the closed sound box 100, and when the speaker body is powered on to vibrate the first diaphragm 1131 to generate sound, the pressure change in the sound cavity 191 drives the first diaphragm 1131 to rapidly reset in response to the continuously changing electrical signal, for example, when the first diaphragm 1131 moves to the side of the sound cavity 191, the pressure in the sound cavity 191 increases, so as to generate a repulsive force to the first diaphragm 1131, and drives the first diaphragm 1131 to rapidly move outward to reset, and when the first diaphragm 1131 moves to the outside of the sound cavity 191, the pressure in the sound cavity 191 decreases, so as to generate a suction force to the first diaphragm 1131, and drives the first diaphragm 1131 to rapidly move inward to reset; at this time, the first diaphragm 1131 may respond to the subsequent electrical signal quickly to vibrate according to the subsequent electrical signal, so as to improve the transient characteristics of the main speaker 11.

Further, it can be understood that, when the mounting case 19 is disposed, the connection terminal 115 of the main speaker 11 and the conductive component 135 of the auxiliary speaker 13 are disposed in the sound cavity 191, at this time, the speaker module 10 further includes the connection terminal 193 penetrating through the wall of the mounting case 19, so that the connection terminal 193 located in the sound cavity 191 is electrically connected to the connection terminal 115 of the main speaker 11, and so configured, the connection terminal 193 located outside the sound cavity 191 may be electrically connected to the main control board 40, so as to receive the electrical signal of the main control board 40 and transmit the electrical signal to the main speaker 11 and the auxiliary speaker 13, so that the main speaker 11 and the auxiliary speaker 13 generate sound.

Referring to fig. 3 and 4 in combination, in some embodiments of the speaker module 10 of the present application, the outer wall of the mounting housing 19 is opened with a mounting groove 197, the bottom wall of the mounting groove 197 is opened with the mounting opening 195, and the surrounding edge 1111a and the connecting portion 1313 are both located in the mounting groove 197.

In this embodiment, mounting groove 197 has been seted up to the outer wall of installation shell 19, and installing port 195 is seted up in the tank bottom of mounting groove 197, and at this moment, surrounding edge 1111a is spacing in mounting groove 197, improves the stability of being connected of main loudspeaker 11 and installation shell 19 to improve overall structure's stability. In some embodiments, the speaker module 10 is provided with the vibration isolation pad 30, and the vibration isolation pad 30 may be disposed around the notch of the mounting groove 197 to ensure the sealing performance of the front cavity 213 of the main speaker 11 when the speaker module 10 is applied to the sound box 100.

Referring to fig. 3 to 4 in combination, in some embodiments of the speaker module 10 of the present application, an outer wall of the mounting housing 19 facing the surrounding edge 1111a is provided with one of a positioning column 199 and a positioning hole 1111c, a surface of the surrounding edge 1111a facing the mounting housing 19 is provided with the other one of the positioning column 199 and the positioning hole 1111c, and the positioning column 199 is inserted into the positioning hole 1111c.

In this embodiment, a positioning structure is provided between the main speaker 11 and the mounting case 19 to improve the stability and mounting convenience of the overall structure. Specifically, the outer wall of the mounting shell 19 facing the peripheral edge 1111a is provided with one of a positioning column 199 and a positioning hole 1111c, the surface of the peripheral edge 1111a facing the mounting shell 19 is provided with the other one of the positioning column 199 and the positioning hole 1111c, the positioning column 199 is inserted into the positioning hole 1111c to facilitate the positioning and mounting of the basin stand 1111 and the mounting shell 19, and the peripheral edge 1111a and the mounting hole on the mounting shell 19 can be opposite to each other to facilitate the mounting and connection of the locking member 15.

Referring to fig. 5 to 8, the present application further provides a sound box 100, where the sound box 100 includes a housing 20 and the speaker module 10 according to any of the foregoing embodiments, a mounting cavity 25 is formed in the housing 20, at least a part of a cavity wall of the mounting cavity 25 is a concave arc surface, and a sound emitting hole 211 communicating with the outside and the mounting cavity 25 is formed on the concave arc surface; the loudspeaker module 10 is arranged in the installation cavity 25, the main loudspeaker 11 is covered on the concave arc surface and forms a front cavity 213 of the main loudspeaker 11 by enclosing with the concave arc surface, and the auxiliary loudspeaker 13 is arranged in the front cavity 213.

The technical scheme provided by the application can be used for improving the problem that the front cavity 213 effect of the main loudspeaker 11 causes medium-high audio attenuation due to the overlarge front cavity 213 of the main loudspeaker 11 caused by the structural characteristics of the concave arc surface, and can also be applied to the problem that the front cavity 213 effect of the main loudspeaker 11 causes medium-high audio attenuation due to the overlarge front cavity 213 of the main loudspeaker 11 caused by other reasons, at the moment, the problems can be caused only when the cavity wall of the cover part of the main loudspeaker 11 is the concave arc surface, the structures of the cavity walls outside the main loudspeaker 11 are not limited, and can be all the concave arc surfaces, and can also be correspondingly arranged according to the internal component structure layout, and meanwhile, the external shape of the shell 20 can be a spherical structure, a square structure, a column structure, a hemisphere structure or other shape structures, and is not limited herein.

As is common, the main control panel 40 is disposed in the sound box 100, and the main speaker 11 and the auxiliary speaker 13 are electrically connected to the main control panel 40 to receive the electrical signal of the main control panel 40 for performing an electroacoustic conversion to generate sound, and the generated sound can be radiated outwards through the sound emitting holes 211. The auxiliary speaker 13 can emit middle-high frequency timbre, and can superimpose the sound emitted by the main speaker 11 to compensate the middle-high frequency loss of the main speaker 11 caused by the front cavity 213 effect, so that the sound played by the sound box 100 includes middle-high and low frequency bands, and the sound analysis and restoration degree and the quality richness of the sound box 100 are ensured; and the size of the space of the front cavity 213 of the main speaker 11 can be reduced, so that the number of times of reflecting the medium and high frequency sound emitted from the main speaker 11 in the front cavity 213 can be reduced, thereby reducing the cancellation loss of the sound emitted from the main speaker 11 in the front cavity 213. Due to the arrangement of the auxiliary speaker 13, the main speaker 11 may emit sound of full audio frequency or only low audio frequency, and is not limited herein. When the main speaker 11 is playing the low frequency sound again, the low frequency sound effect of the sound box 100 can be improved, so that the sound box 100 optimizes the low frequency sound effect while improving the playback effect and the richness of the middle and high frequency bands, the sound quality richness and the analysis and restoration degree of the sound box 100 are further improved, and the hearing experience of a user is improved. Fig. 8 is a comparison graph of audio frequencies between the sound box 100 of the present application and the sound box 100 without the auxiliary speaker 13, and it can be seen that the sound box 100 without the auxiliary speaker 13 has an obvious audio frequency shortage in the middle and high frequency bands, and the sound box 100 of the present application has the auxiliary speaker 13 to better solve the problem, so that the sound played by the sound box 100 includes the middle and low frequency bands, and the sound analysis and restoration degree and the sound quality richness of the sound box 100 are ensured.

Since the sound box 100 provided by the present application employs all technical solutions of all embodiments of the speaker module 10, at least all beneficial effects brought by all the technical solutions are provided, which are not described herein again.

In some embodiments of the sound box 100 of the present invention, the main speaker 11 has a vibration isolation pad 30, the vibration isolation pad 30 is attached to an outer wall of the inner casing and circumferentially disposed along the circumferential direction of the mounting opening 195, and the surrounding edge 1111a and the connecting portion 1313 are both located within a circumferential range of the vibration isolation pad 30.

It is understood that when the speaker module 10 is applied to the sound box 100, the main speaker 11 is covered on the inner wall of the casing 20 to form the front cavity 213 of the main speaker 11 in front of the first diaphragm 1131. In this embodiment, the vibration isolation pad 30 disposed around the circumference of the first diaphragm 1131 is disposed on the main speaker 11, and the vibration isolation pad 30 can play a role of buffering vibration, so as to prevent the vibration energy from being transferred to the casing 20 to drive the casing 20 to resonate to generate noise when the main speaker 11 is powered on to make the first diaphragm 1131 vibrate and generate sound, thereby affecting the sound quality of the sound box 100 and increasing the risk of damage to internal devices. The vibration isolation pad 30 may be made of elastic material such as sponge or rubber, which can effectively absorb vibration and reduce the propagation of vibration energy.

Furthermore, the vibration isolation pad 30 can also play a role in sealing, in this embodiment, the surrounding edge 1111a and the connection portion 1313 are both located in the surrounding range of the vibration isolation pad 30, that is, the main speaker 11 and the piezoelectric speaker are both located in the front cavity 213, so as to ensure that the front cavity 213 of the main speaker 11 is sealed, thereby preventing the sound generated by the main speaker 11 and the piezoelectric speaker from transmitting to the inside of the casing 20 of the sound box 100 to affect the sound output effect due to sound resonance.

Referring to fig. 7, in some embodiments of the sound box 100 of the present invention, the housing 20 of the sound box 100 includes a front shell 21 and a rear shell 23, the front shell 21 and the rear shell 23 cover each other to form the installation cavity 25, and the front shell 21 and the rear shell 23 are detachably connected to facilitate assembly and disassembly of components inside the sound box 100.

Referring to fig. 7, in some embodiments of the sound box 100 of the present invention, the housing 20 of the sound box 100 is provided with a key 29, and the key 29 is electrically connected to the main control board 40 of the sound box 100, at this time, a user can input a control instruction by operating the key 29 to control the sound box 100 to execute a corresponding action according to the instruction, including adjusting a volume or switching audio.

Referring to fig. 5, in some embodiments of the sound box 100 of the present invention, a battery is further disposed in the accommodating cavity, and the auxiliary speaker 13 and the main speaker 11 are both electrically connected to a battery assembly, where the battery assembly mainly functions as a power supply, so as to implement a mobile and portable function of the sound box 100. Further, casing 20 still is provided with the interface 27 that charges, and the interface 27 that charges runs through casing 20 setting to with battery pack electric connection, when battery pack's electric quantity exhausts, can connect the power through the interface 27 that charges and charge battery pack like this, can guarantee audio amplifier 100's life, need not to change the battery repeatedly.

Referring to fig. 5 and 7, in some embodiments of the sound box 100 of the present invention, the sound box 100 further includes a mesh 50, and the mesh 50 is covered on the outer side wall of the housing 20.

In this embodiment, the mesh cloth 50 is wrapped on the outer wall of the casing 20 of the sound box 100, and the mesh cloth 50 can block dust in the space, so that the dust cannot enter the sound box 100, thereby preventing the aging of components inside the sound box 100 and ensuring the service life of the sound box 100; meanwhile, a plurality of compact small holes are formed in the mesh 50, so that the sound output and the heat dissipation of the sound box 100 are prevented from being influenced by the arrangement of the mesh 50.

The above description is only a preferred embodiment of the present invention, and is 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 speaker module, comprising:

the main loudspeaker comprises a magnetic circuit system and a vibration system, a first diaphragm cover of the vibration system is arranged at a port of a basin frame of the magnetic circuit system, a surrounding edge arranged around the periphery of the basin frame is arranged at the outer edge of the port of the basin frame, and a wiring terminal is arranged at the rear end of the basin frame;

the auxiliary loudspeaker is arranged on one side, away from the magnetic circuit system, of the first vibrating diaphragm, is arranged at an interval with the first vibrating diaphragm and is used for emitting medium and high audio frequencies, and the conductive piece of the auxiliary loudspeaker penetrates through the surrounding edge and is electrically connected with the wiring terminal;

the mounting shell is internally provided with a sound cavity, and is provided with a mounting port communicated with the sound cavity; and

the connecting terminal penetrates through the sound cavity to the outside of the mounting shell;

2. The speaker module as claimed in claim 1, wherein the surrounding edge has a through hole, the conductive member is disposed through the through hole, and a sealant is filled between the conductive member and a wall of the through hole.

3. The speaker module as claimed in claim 1, wherein the connection terminal comprises:

and the two wiring pieces are electrically connected with two ends of the connecting piece respectively.

4. The speaker module as recited in claim 1, wherein the secondary speaker is a piezoelectric speaker.

5. The speaker module as recited in claim 4, wherein the piezoelectric speaker comprises:

the mounting frame is erected in front of the first vibrating diaphragm and is arranged at an interval with the first vibrating diaphragm, a hollow hole is formed in the mounting frame, and the hollow hole is arranged corresponding to the first vibrating diaphragm; and

the second vibrating diaphragm is embedded in the hollow hole and arranged opposite to the first vibrating diaphragm, and the second vibrating diaphragm is electrically connected with the conductive parts.

6. The speaker module of claim 5, wherein the mounting frame comprises:

7. The speaker module as claimed in claim 6, wherein the speaker module further comprises a locking member, the locking member is sequentially inserted through the connecting portion and the surrounding edge to connect the connecting portion and the surrounding edge;

8. The speaker module as claimed in claim 5, wherein the mounting frame has a limiting groove formed at an outer edge of the hollow hole, and a portion of the conductive member is disposed in the limiting groove;

9. An acoustic enclosure, comprising:

the speaker module as claimed in any one of claims 1 to 8, wherein the speaker module is disposed in the mounting cavity, and the main speaker cover is disposed in the concave arc surface and encloses with the concave arc surface to form a front cavity of the main speaker, and the auxiliary speaker is disposed in the front cavity.