CN214507375U

CN214507375U - Double-sided loudspeaker device

Info

Publication number: CN214507375U
Application number: CN202120962550.7U
Authority: CN
Inventors: 黄锦堂; 孙志凯
Original assignee: Taiwan Luxshare Precision Ltd
Current assignee: Taiwan Luxshare Precision Ltd
Priority date: 2021-05-07
Filing date: 2021-05-07
Publication date: 2021-10-26
Anticipated expiration: 2031-05-07

Abstract

The application discloses a double-sided loudspeaker device, which comprises a magnetic conduction carrier plate, a first magnetic circuit module, a second magnetic circuit module, a first voice coil, a second voice coil, a first sound outlet cover body and a second sound outlet cover body, wherein the magnetic conduction carrier plate is provided with a plurality of openings; the first magnetic circuit module is arranged on one side of the magnetic conductive carrier plate; the second magnetic circuit module is arranged on the other side of the magnetic conduction carrier plate, and the plurality of openings are positioned between the first magnetic circuit module and the second magnetic circuit module; the first voice coil is arranged around the first magnetic circuit module; the second voice coil is arranged around the second magnetic circuit module; the first sound outlet cover body is arranged on one side of the magnetic conduction carrier plate and provided with a first accommodating space, and the first magnetic circuit module and the first voice coil are positioned in the first accommodating space; the second sound outlet cover body is arranged on the other side of the magnetic conduction carrier plate and provided with a second accommodating space, the second magnetic circuit module and the second voice coil are located in the second accommodating space, and the second accommodating space is communicated with the first accommodating space through a plurality of openings.

Description

Double-sided loudspeaker device

Technical Field

The application relates to the technical field of loudspeaker devices, in particular to a double-sided loudspeaker device.

Background

Two voice coil loudspeaker voice coil collocation common magnetic circuit module forms at present, and two resonance spaces are separated into through magnetic circuit module in two loudspeaker voice coil's inside, and two voice coil loudspeaker voice coil lie in two resonance spaces respectively, and two resonance spaces are not linked together, lead to two loudspeaker voice quality effect not good, if want to increase the resonance space and promote two loudspeaker voice quality effect, will lead to two loudspeaker's volume to increase, are not suitable for slim electron device.

SUMMERY OF THE UTILITY MODEL

The utility model provides a two-sided speaker solves the not good problem of present two-sided speaker's tone quality effect.

In order to solve the technical problem, the utility model discloses a realize like this:

there is provided a two-sided speaker device including: the magnetic conduction carrier plate is provided with a plurality of openings; the first magnetic circuit module is arranged on one side of the magnetic conduction carrier plate; the second magnetic circuit module is arranged on the other side of the magnetic conduction carrier plate, the second magnetic circuit module is opposite to the first magnetic circuit module, and the plurality of openings are positioned between the first magnetic circuit module and the second magnetic circuit module; a first voice coil disposed around the first magnetic circuit module; the second voice coil is arranged around the second magnetic circuit module and corresponds to the first voice coil; the first sound outlet cover body is arranged on one side of the magnetic conduction carrier plate and provided with a first accommodating space, and the first magnetic circuit module and the first voice coil are positioned in the first accommodating space; and the second sound outlet cover body is arranged on the other side of the magnetic conduction carrier plate and is provided with a second accommodating space, the second magnetic circuit module and the second voice coil are positioned in the second accommodating space, and the second accommodating space is communicated with the first accommodating space through a plurality of openings.

The utility model discloses a two-sided speaker passes through the magnetic conduction support plate, first voice coil loudspeaker voice coil, first magnetic circuit module and the first sound-producing cover body forms first sound-raising portion and magnetic conduction support plate, second voice coil loudspeaker voice coil, second magnetic circuit module and the second sound-producing cover body forms second sound-raising portion, and first voice coil loudspeaker voice coil and second voice coil loudspeaker voice coil independently use first magnetic circuit module and second magnetic circuit module respectively and reach two-sided speaker. The first accommodating space and the second accommodating space are two resonant cavities of the double-sided loudspeaker device respectively, and the two resonant cavities are communicated through the plurality of openings, so that the volume of the resonant cavity of the double-sided loudspeaker device is increased under the condition that the volume of the double-sided loudspeaker device is not increased, and the tone quality effect of the double-sided loudspeaker device can be effectively improved.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:

fig. 1 is a perspective view of a double-sided speaker device according to an embodiment of the present application;

fig. 2 is an exploded view of a double-sided speaker device according to an embodiment of the present application;

fig. 3 is another exploded view of the double-sided speaker device according to an embodiment of the present application;

FIG. 4 is a cross-sectional view taken along line A-A' of FIG. 1;

FIG. 5 is a cross-sectional view taken along line B-B' of FIG. 1; and

fig. 6 is a sectional view taken along line C-C' of fig. 1.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all, embodiments of the present application. 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 application.

Please refer to fig. 1, fig. 2 and fig. 3, which are perspective and exploded views of a dual-side speaker device according to an embodiment of the present application; as shown in the figure, the double-sided loudspeaker device 1 of the present embodiment includes a magnetic conductive carrier 10, a first magnetic circuit module 11, a second magnetic circuit module 12, a first voice coil 13, a second voice coil 14, a first sound-emitting cover 15, and a second sound-emitting cover 16, where the magnetic conductive carrier 10 has a plurality of openings 101, the plurality of openings 101 are respectively arranged in a first direction X and a second direction Y, and the first direction X is orthogonal to the second direction Y.

The number of the openings 101 in this embodiment is four, two of the four openings 101 are arranged in the first direction X, and the two openings 101 are respectively opened on the front side and the rear side of the magnetic conductive carrier plate 10; the other two openings 101 are arranged in the second direction Y, and the other two openings 101 are respectively opened on the left side and the right side of the magnetic conductive carrier plate 10. The first magnetic circuit module 11 is disposed on one side of the magnetic conductive carrier 10, and the second magnetic circuit module 12 is disposed on the other side of the magnetic conductive carrier 10, in this embodiment, the first magnetic circuit module 11 and the second magnetic circuit module 12 are disposed on two opposite sides of the magnetic conductive carrier 10 in a third direction Z orthogonal to the first direction X and the second direction Y, the first magnetic circuit module 11 is disposed on the upper side of the magnetic conductive carrier 10, the second magnetic circuit module 12 is disposed on the lower side of the magnetic conductive carrier 10, and the second magnetic circuit module 12 is opposite to the first magnetic circuit module 11.

As shown in fig. 2 and 3, the plurality of openings 101 are located between the first magnetic circuit module 11 and the second magnetic circuit module 12, and in the present embodiment, four openings 101 are located around the first magnetic circuit module 11 and the second magnetic circuit module 12. The first voice coil 13 is disposed around the first magnetic circuit module 11, the second voice coil 14 is disposed around the second magnetic circuit module 12, and the first voice coil 13 corresponds to the second voice coil 14. As shown in fig. 4, the first sound-emitting cover 15 is disposed on one side of the magnetic conductive carrier 10, the first sound-emitting cover 15 has a first accommodating space 151, and the first magnetic circuit module 11 and the first voice coil 13 are located in the first accommodating space 151. The second sound-emitting cover 16 is disposed on the other side of the magnetic conductive carrier 10, the second sound-emitting cover 16 has a second accommodating space 161, the second magnetic circuit module 12 and the second voice coil 14 are located in the second accommodating space 161, and the second accommodating space 161 is communicated with the first accommodating space 151 through the plurality of openings 101.

The first sound-emitting cover body 15 of this embodiment includes a first support 152 and a first diaphragm 153, the first support 152 is disposed on one side of the magnetic conductive carrier plate 10, and the first diaphragm 153 is disposed on one side of the first support 152 away from the magnetic conductive carrier plate 10 and connected to the first voice coil 13; similarly, the second sound-emitting cover 16 includes a second support 162 and a second diaphragm 163, the second support 162 is disposed on the other side of the magnetic conductive carrier 10, and the second diaphragm 163 is disposed on one side of the second support 162 far away from the magnetic conductive carrier 10 and connected to the second voice coil 14.

When the double-sided speaker 1 of the present embodiment is in an operating state, as shown in fig. 3 and 4, two ends of the first voice coil 13 and two ends of the second voice coil 14 are connected to an external power source, the external power source supplies current to the first voice coil 13 and the second voice coil 14, the first voice coil 13 and the second voice coil 14 generate a magnetic field under the action of the current, and the magnitude and the direction of the magnetic field generated by the first voice coil 13 and the second voice coil 14 are changed by changing the magnitude of the current supplied to the first voice coil 13 and the second voice coil 14.

The magnetic field generated by the first voice coil 13 and the magnetic field generated by the first magnetic circuit module 11 act to make the first voice coil 13 generate vibration orthogonal to the current direction, and the first voice coil 13 drives the first diaphragm 153 to generate vibration to generate sound; similarly, the magnetic field generated by the second voice coil 14 and the magnetic field generated by the second magnetic circuit module 12 act to make the second voice coil 14 generate vibration orthogonal to the current direction, and the second voice coil 14 drives the second diaphragm 163 to generate vibration to generate sound, in this embodiment, the double-sided loudspeaking device 1 forms the first loudspeaking portion through the magnetic conductive carrier plate 10, the first voice coil 13, the first magnetic circuit module 11 and the first sound-emitting cover 15, and forms the second loudspeaking portion through the magnetic conductive carrier plate 10, the second voice coil 14, the second magnetic circuit module 12 and the second sound-emitting cover 16, so as to achieve double-sided loudspeaking.

It should be further noted that, since the same vibration masses of the first voice coil 13 and the second voice coil 14 are mutually offset, the vibration of the double-sided speaker 1 is reduced, the vibration areas of the first diaphragm 153 and the second diaphragm 163 are increased, and the performance of the double-sided speaker 1 is improved. In addition, the first accommodating space 151 and the second accommodating space 161 of the present embodiment are two resonant cavities of the double-sided speaker device 1, and the two resonant cavities are communicated through the plurality of openings 101, so that the volume of the resonant cavity of the double-sided speaker device 1 is increased without increasing the volume of the double-sided speaker device 1, and the three-dimensional sound quality effect of the double-sided speaker device 1 can be effectively improved.

As shown in fig. 2 and fig. 4, the surface of the first bracket 152 connected to the first diaphragm 153 of the present embodiment further has a first wire slot 1523, and the first wire slot 1523 is communicated with the first accommodating space 151; similarly, the surface of the second bracket 162 connected to the second diaphragm 163 is further provided with a second wiring groove 1623, and the second wiring groove 1623 is communicated with the second accommodating space 161. Both ends of the first voice coil 13 are respectively penetrated from the first wire grooves 1523 to the outside to be connected with an external power supply, and likewise, both ends of the second voice coil 14 are respectively penetrated from the second wire grooves 1623 to the outside to be connected with the external power supply.

Please refer to FIG. 4, which is a cross-sectional view taken along line A-A' of FIG. 1; as shown in the figure, the first magnetic circuit module 11 of the present embodiment includes a first magnetic body 111 and a first magnetic conduction plate 112, the first magnetic body 111 is disposed on one side of the magnetic conduction carrier plate 10, and the first magnetic conduction plate 112 is disposed on one side of the first magnetic body 111 far away from the magnetic conduction carrier plate 10. Similarly, the second magnetic circuit module 12 includes a second magnetic element 121 and a second magnetic conductive plate 122, the second magnetic element 121 is disposed on the other side of the magnetic conductive carrier 10, and the second magnetic conductive plate 122 is disposed on one side of the second magnetic element 121 far away from the magnetic conductive carrier 10. The magnetic poles of the magnetic carrier plate 10 of the present embodiment are different from the magnetic poles of the first magnetic element 111 and the second magnetic element 121, and the magnetic poles of the first magnetic plate 112 and the second magnetic plate 122 are different from the magnetic poles of the first magnetic element 111 and the second magnetic element 121, for example, the magnetic poles of the magnetic carrier plate 10, the first magnetic plate 112 and the second magnetic plate 122 are N poles, and the magnetic poles of the first magnetic element 111 and the second magnetic element 121 are S poles.

Referring back to fig. 2 and 3 and also to fig. 5, fig. 5 is a cross-sectional view taken along line B-B' of fig. 1. The magnetic conductive carrier plate 10 of this embodiment has a magnetic conductive plate body 102 and a plurality of positioning cantilevers 103, wherein one end of each of the plurality of positioning cantilevers 103 is connected to the magnetic conductive plate body 102, the plurality of positioning cantilevers 103 are arranged around the magnetic conductive plate body 102 at intervals, the other end of each of the plurality of positioning cantilevers 103 is connected to the first sound-emitting cover body 15 and the second sound-emitting cover body 16, the plurality of openings 101 are respectively located between two adjacent positioning cantilevers 103, in this embodiment, the number of the positioning cantilevers 103 is four, one end of each of the four positioning cantilevers 103 is respectively disposed at four corners of the magnetic conductive plate body 102, the other end of each of the four positioning cantilevers 103 extends from the four corners of the magnetic conductive plate body 102 to the first sound-emitting cover 15 and the second sound-emitting cover 16, a space between two adjacent positioning cantilevers 103 is the opening 101 of the magnetic conductive carrier plate 10, in other words, the opening 101 is located between two adjacent positioning cantilevers 103.

The other ends of the positioning cantilevers 103 further have positioning portions 1031, the first bracket 152 is provided with a plurality of first positioning portions 1521 corresponding to the positioning portions 1031 of the positioning cantilevers 103, the second bracket 162 is provided with a plurality of second positioning portions 1621 corresponding to the positioning portions 1031 of the positioning cantilevers 103, the positioning portions 1031 of the positioning cantilevers 103 are connected to the first positioning portions 1521 and the second positioning portions 1621, respectively, and the first sound outlet cover 15, the magnetic conductive carrier plate 10 and the second sound outlet cover 16 are connected into a whole by laser welding. The positioning portion 1031 of this embodiment is a through hole, the first positioning portions 1521 are positioning grooves or positioning columns respectively, the second positioning portions 1621 are positioning columns or positioning grooves respectively, and the positioning columns penetrate through the through hole and are disposed in the positioning grooves respectively.

Please refer to FIG. 6, which is a cross-sectional view taken along line C-C' of FIG. 1; as shown in the figure, the double-sided loudspeaker device 1 of the present embodiment further includes two side magnetic guiding plates 17, and the two side magnetic guiding plates 17 are respectively connected to two opposite sides of the magnetic conductive carrier 10, in the present embodiment, the two side magnetic guiding plates 17 are respectively disposed on two opposite sides of the magnetic conductive carrier 10 in the first direction X, that is, the two side magnetic guiding plates 17 are respectively disposed on the left side and the right side of the magnetic conductive carrier 10. In the present embodiment, the two side magnetic guide plates 17 are respectively located at the two openings 101 on the left and right sides of the magnetic guide plate body 102. The two side magnetic guide plates 17 are respectively located in the corresponding openings 101 and extend to the first accommodating space 151 and the second accommodating space 161, and two ends of the two side magnetic guide plates 17 are respectively connected to the two adjacent positioning cantilevers 103. The first voice coil 13 is located between the two side magnetic guide plates 17 and the first magnetic circuit module 11, and the second voice coil 14 is located between the two side magnetic guide plates 17 and the second magnetic circuit module 12. The magnetic poles of the two side magnetic guiding plates 17 of the present embodiment are the same as the magnetic poles of the magnetic conducting carrier plate 10.

In the present embodiment, as shown in fig. 3, 5 and 6, both ends of the two side magnetic conductive plates 17 are connected to the positioning portions 1031 of the two adjacent positioning cantilevers 103, respectively. The two side magnetic guide plates 17 each have a magnetic conductive portion 171 and two abutting protrusions 172, the two abutting protrusions 172 are located at both ends of the magnetic conductive portion 171, and the magnetic conductive portion 171 of the present embodiment protrudes toward the first voice coil 13 or the second voice coil 14 with respect to the two abutting protrusions 172. The other ends of the positioning cantilevers 103 further have abutting recesses 1032, the two abutting protrusions 172 of two side magnetic plates 17 are respectively disposed in the abutting recesses 1032 of two adjacent positioning cantilevers 103, and the side magnetic plates 17 are limited from moving toward the magnetic conductive plate body 102 by the two abutting protrusions 172 being respectively disposed in the corresponding abutting recesses 1032 to position the side magnetic plates 17 in the corresponding openings 101. The magnetic conductive plate body 102 of the present embodiment further has abutting convex portions 1021 on both opposite sides, the abutting convex portions 1021 abut against the corresponding side magnetic conductive plate 17, and the magnetic conductive plate body 102 of the present embodiment has abutting convex portions 1021 on the left side and the right side. The contact convex portion 1021 can restrict the movement of the side magnetic guide plate 17 to the magnetic conductive plate body 102, and can also support the magnetic conductive portion 171 of the side magnetic guide plate 17 to stabilize the side magnetic guide plate 17 in the corresponding opening 101.

One side of the first support 152, which is far away from the first diaphragm 153, is further provided with a plurality of first limiting notches 1522, one side of the second support 162, which is far away from the second diaphragm 163, is further provided with a plurality of second limiting notches 1622 corresponding to the plurality of first limiting notches 1522, and two abutting convex portions 172 of the two side magnetic guide plates 17 are respectively located in the corresponding first limiting notches 1522 and the second limiting notches 1622. The abutting convex part 172 is limited to move in the third direction Z by the side walls of the first limiting notch 1522 and the second limiting notch 1622 in the third direction Z, so that the two side magnetic guide plates 17 are prevented from moving in the third direction Z; meanwhile, the abutting convex part 172 is limited to move in the second direction Y by the side walls of the first limiting notch 1522 and the second limiting notch 1622 in the second direction Y and the side wall of the abutting notch 1032 in the second direction Y, so that the two side magnetic guide plates 17 are prevented from moving in the second direction Y, and thus the two side magnetic guide plates 17 can be fixed in the corresponding openings 101 respectively.

The double-sided speaker 1 of the present embodiment further includes a first damper 18a and a second damper 18b, both ends of the first damper 18a are connected to the first bracket 152 of the first sound outlet cover 15, and the first damper 18a is located between the first magnetic circuit module 11 and the two side magnetic conductive plates 17 and is in contact with the first voice coil 13; similarly, the second damper 18b is connected at both ends to the second bracket 162 of the second sound outlet cover 16, and the second damper 18b is located between the second magnetic circuit module 12 and the two side magnetic conductive plates 17 and is in contact with the second voice coil 14. In the present embodiment, the first damper 18a and the second damper 18b limit the displacement of the first voice coil 13 and the second voice coil 14 in the first direction X and the second direction Y, respectively, so as to ensure the distance between the first voice coil 13 and the first magnetic circuit module 11 and the side magnetic guide 17 and the distance between the second voice coil 14 and the second magnetic circuit module 12 and the side magnetic guide 17, and ensure the vibration of the first voice coil 13 and the second voice coil 14 in the third direction Z.

As shown in fig. 3, the first damper 18a and the second damper 18b of the present embodiment respectively have a limiting portion 181, two connecting portions 182 and two elastic buffering portions 183, the two connecting portions 182 are respectively disposed at two opposite ends of the limiting portion 181, and the two elastic buffering portions 183 are respectively connected to the corresponding connecting portions 182 and the limiting portion 181. The two elastic buffers 183 of the present embodiment have bending resilient tabs 1831, and the bending resilient tabs 1831 further have a plurality of bending segments 1831 a. It should be further described that the first damper 18a and the second damper 18b are in a shape of a plate, and the center thereof is hollow, so as to connect the first magnetic circuit module 11 and the second magnetic circuit module 12, respectively, so that when the double-sided speaker 1 is in an operating state, the first magnetic circuit module 11 and the second magnetic circuit module 12 therein can stably reciprocate along the third direction Z.

To sum up, the application provides a two-sided speaker, through magnetic conduction support plate, first voice coil loudspeaker voice coil, first magnetic circuit module and the first sound-emitting cover body formation first sound-raising portion and magnetic conduction support plate, second voice coil loudspeaker voice coil, second magnetic circuit module and the second sound-emitting cover body formation second sound-raising portion, first voice coil loudspeaker voice coil and second voice coil loudspeaker voice coil independently use first magnetic circuit module and second magnetic circuit module respectively and reach two-sided speaker. Simultaneously the same vibration quality of first voice coil loudspeaker voice coil and second voice coil loudspeaker voice coil can offset each other, reduces two-sided speaker's vibration, increases the vibration area of first vibrating diaphragm and second vibrating diaphragm, promotes two-sided speaker's efficiency. In addition, the first accommodating space and the second accommodating space are two resonant cavities of the double-sided speaker respectively, and the two resonant cavities are communicated through a plurality of openings, so that the volume of the resonant cavity of the double-sided speaker is increased without increasing the volume of the double-sided speaker, and the tone quality effect of the double-sided speaker can be effectively improved.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

While the present embodiments have been described with reference to the accompanying drawings, it is to be understood that the invention is not limited to the precise embodiments described above, which are meant to be illustrative and not restrictive, and that various changes may be made therein by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. A two-sided acoustic speaker apparatus, comprising:

the magnetic conduction carrier plate is provided with a plurality of openings;

the first magnetic circuit module is arranged on one side of the magnetic conduction carrier plate;

the second magnetic circuit module is arranged on the other side of the magnetic conductive carrier plate, the second magnetic circuit module is opposite to the first magnetic circuit module, and the plurality of openings are positioned between the first magnetic circuit module and the second magnetic circuit module;

a first voice coil disposed around the first magnetic circuit module;

a second voice coil disposed around the second magnetic circuit module, the second voice coil corresponding to the first voice coil;

the first sound outlet cover body is arranged on one side of the magnetic conductive carrier plate, the first sound outlet cover body is provided with a first accommodating space, and the first magnetic circuit module and the first voice coil are positioned in the first accommodating space; and

the second sound outlet cover body is arranged on the other side of the magnetic conduction carrier plate and provided with a second accommodating space, the second magnetic circuit module and the second voice coil are located in the second accommodating space, and the second accommodating space is communicated with the first accommodating space through the plurality of openings.

2. The double-sided loudspeaker device of claim 1, wherein the first magnetic circuit module comprises a first magnetic body and a first magnetic conductive plate, the first magnetic body is disposed on one side of the magnetic conductive carrier plate, and the first magnetic conductive plate is disposed on one side of the first magnetic body away from the magnetic conductive carrier plate; the second magnetic circuit module comprises a second magnetic body and a second magnetic conduction plate, the second magnetic body is arranged on the other side of the magnetic conduction carrier plate, and the second magnetic conduction plate is arranged on one side, far away from the magnetic conduction carrier plate, of the second magnetic body.

3. The two-sided loudspeaker of claim 2, further comprising two side magnetic guiding plates, wherein the two side magnetic guiding plates are respectively connected to two opposite sides of the magnetic carrying plate, the two side magnetic guiding plates are respectively located in the corresponding openings and extend to the first receiving space and the second receiving space, the first voice coil is located between the two side magnetic guiding plates and the first magnetic circuit module, and the second voice coil is located between the two side magnetic guiding plates and the second magnetic circuit module.

4. The dual-sided loudspeaker device of claim 3, wherein the magnetic conductive carrier plate has a magnetic conductive plate body and a plurality of positioning cantilevers, one ends of the positioning cantilevers are respectively connected to the magnetic conductive plate body, the positioning cantilevers are arranged at intervals around the magnetic conductive plate body, the other ends of the positioning cantilevers are respectively connected to the first sound-emitting cover body and the second sound-emitting cover body, and the openings are respectively located between two adjacent positioning cantilevers.

5. The two-sided loudspeaker device of claim 4, wherein each of the two opposite sides of the magnetic conductive plate body further has an abutting convex portion abutting against the corresponding side magnetic conductive plate.

6. The two-sided acoustic speaker device of claim 4, wherein the first acoustic enclosure comprises a first support and a first diaphragm, the first support is disposed on one side of the magnetic-conductive carrier, and the first diaphragm is disposed on one side of the first support away from the magnetic-conductive carrier and connected to the first voice coil; the second sound outlet cover body comprises a second support and a second vibrating diaphragm, the second support is arranged on the other side of the magnetic conduction carrier plate, and the second vibrating diaphragm is arranged on one side, far away from the magnetic conduction carrier plate, of the second support and connected with the second voice coil.

7. The double-sided speaker device according to claim 6, wherein the other ends of the plurality of positioning cantilevers further have positioning portions, respectively, the first holder is provided with a plurality of first positioning portions corresponding to the positioning portions of the plurality of positioning cantilevers, the second holder is provided with a plurality of second positioning portions corresponding to the positioning portions of the plurality of positioning cantilevers, and the positioning portions of the plurality of positioning cantilevers are connected to the plurality of first positioning portions and the plurality of second positioning portions, respectively.

8. The double-sided acoustic speaker device according to claim 7, wherein both ends of the two side magnetic conductive plates are connected to the positioning portions of the two adjacent positioning arms, respectively.

9. The dual-sided speaker device as claimed in claim 7, wherein the positioning portions are through holes, the first positioning portions are positioning slots or positioning posts, the second positioning portions are positioning posts or positioning slots, and the positioning posts pass through the through holes and are disposed in the positioning slots.

10. The two-sided loudspeaker device of claim 7, wherein the two side magnetic conductive plates have a magnetic conductive portion and two abutting convex portions respectively located at two ends of the magnetic conductive portion, the other ends of the positioning cantilevers further have abutting notches, and the two abutting convex portions of the two side magnetic conductive plates are respectively disposed in the abutting notches of the two adjacent positioning cantilevers.

11. The two-sided acoustic speaker device of claim 10, wherein a side of the first frame remote from the first diaphragm further has a plurality of first limiting notches, a side of the second frame remote from the second diaphragm further has a plurality of second limiting notches corresponding to the plurality of first limiting notches, and the two abutting convex portions of the two side magnetic plates are respectively located in the corresponding first limiting notches and second limiting notches.

12. The double-sided acoustic speaker device according to claim 7, further comprising a first damper and a second damper, both ends of the first damper being connected to the first holder of the first sound-outputting housing, the first damper being located between the first magnetic circuit block and the two side conductive magnetic plates and being in contact with the first voice coil; and two ends of the second damper are connected with the second support of the second sound outlet cover body, and the second damper is positioned between the second magnetic circuit module and the two side magnetic guide plates and is in contact with the second voice coil.

13. The dual-sided acoustic speaker device of claim 12 wherein the first damper and the second damper each have a position-limiting portion, two connecting portions and two elastic buffering portions, the two connecting portions are respectively disposed at two opposite ends of the position-limiting portion, and the two elastic buffering portions respectively connect the corresponding connecting portions and the position-limiting portions.

14. The dual-sided acoustic speaker apparatus of claim 13, wherein each of said two elastic buffers has a bent elastic piece, and said bent elastic piece further has a plurality of bent sections.

15. The two-sided acoustic speaker device of claim 6, wherein a surface of the first frame connected to the first diaphragm further has a first wiring groove, and the first wiring groove is communicated with the first accommodation space; and a second wiring groove is also formed in the surface of the second support connected with the second vibrating diaphragm and communicated with the second accommodating space.