TWM615661U - Double-sided speaker device - Google Patents

Abstract

A double-sided speaker device is disclosed. The double-sided speaker device comprises a magnetic carrier board, a first magnetic circuit module, a second magnetic circuit module, a first voice coil, a second voice coil, a first voice output cover, and a second voice output cover. The first magnetic circuit module and the second magnetic circuit module are disposed the opposite two side of the magnetic carrier board. A plurality of openings are located between the first magnetic circuit module and the second magnetic circuit module. The first voice coil and the second voice coil are respectively arranged around the first magnetic circuit module and the second magnetic circuit module. The first voice output cover and the second voice output cover are disposed the opposite two side of the magnetic carrier board. The first magnetic circuit module and the first voice coil are located in a first accommodating space of the first voice output cover. The second magnetic circuit module and the second voice coil are located in a second accommodating space of the second voice output cover. The second accommodating space communicates with the first accommodating space though the plurality of openings.

Description

Double-sided speaker device

This application relates to the technical field of speaker devices, and in particular to a double-sided speaker device.

At present, the double-sided speaker device is usually formed by using two voice coils with a common magnetic circuit module. The inside of the double-sided speaker device is divided into two resonance spaces by the magnetic circuit module, and the two voice coils are located in the two resonance spaces. In this case, the two resonance spaces are not connected, resulting in poor sound quality of the double-sided speaker device. If you want to increase the resonance space to improve the sound quality of the double-sided speaker device, the volume of the double-sided speaker device will increase. Suitable for thin electronic devices.

The model provides a double-sided speaker device, which solves the problem of poor sound quality of the current double-sided speaker device.

In order to solve the above technical problems, the present model is implemented as follows:

A double-sided speaker device is provided, which includes: a magnetically permeable carrier board with a plurality of openings; a first magnetic circuit module set on one side of the magnetically permeable carrier board; and a second magnetic circuit module set on the magnetically permeable carrier On the other side of the board, the second magnetic circuit module is opposite to the first magnetic circuit module. The openings are located between the first magnetic circuit module and the second magnetic circuit module; the first voice coil surrounds the first magnetic circuit module. The second voice coil is arranged around the second magnetic circuit module, and the second voice coil corresponds to the first voice coil; the first sound output cover is arranged on one side of the magnetic carrier plate, and the first output The sound cover has a first accommodating space, the first magnetic circuit module and the first voice coil are located in the first accommodating space; The sound output cover has 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 communicates with the first accommodating space through the openings.

The double-sided speaker device of the present invention forms a first speaker unit, a magnetic carrier board, a second voice coil, and a The two magnetic circuit modules and the second sounding cover form the second speaker part, and the first voice coil and the second voice coil use the first magnetic circuit module and the second magnetic circuit module independently to achieve double-sided speaker . The first accommodating space and the second accommodating space are respectively the two resonant cavities of the double-sided speaker device, and the two resonant cavities are connected through the openings, so that the double-sided speaker device is increased without increasing the volume of the double-sided speaker device. The volume of the resonant cavity of the speaker device can effectively improve the sound quality of the double-sided speaker device.

The following will clearly and completely describe the technical solutions in the embodiments of the present application in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of them. Based on the embodiments in this application, all other embodiments obtained by a person of ordinary skill in the art without making progressive labor fall within the protection scope of this application.

Please refer to FIGS. 1, 2 and 3, which are a perspective view and an exploded view of a double-sided speaker device according to an embodiment of the present application; as shown in the figure, the double-sided speaker device 1 of this embodiment includes a magnetically permeable carrier board 10. The first magnetic circuit module 11, the second magnetic circuit module 12, the first voice coil 13, the second voice coil 14, the first sound output cover 15 and the second sound output cover 16, magnetic carrier board 10 has a plurality of openings 101, and the openings 101 are respectively arranged in a first direction X and a second direction Y, and the first direction X and the second direction Y are orthogonal.

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

As shown in FIGS. 2 and 3, the openings 101 are located between the first magnetic circuit module 11 and the second magnetic circuit module 12. In this embodiment, the four openings 101 are located in the first magnetic circuit module 11 And around the second magnetic circuit module 12. The first voice coil 13 is arranged around the first magnetic circuit module 11, the second voice coil 14 is arranged around the second magnetic circuit module 12, and the first voice coil 13 corresponds to the second voice coil 14. Please refer to FIG. 4 at the same time. The first sound output cover 15 is disposed on one side of the magnetically permeable carrier board 10. The first sound output cover 15 has a first accommodating space 151, and the first magnetic circuit module 11 And the first voice coil 13 is located in the first accommodating space 151. The second sound output cover 16 is arranged on the other side of the magnetically permeable carrier board 10, the second sound output cover 16 has a second accommodating space 161, and the second magnetic circuit module 12 and the second voice coil 14 are located in the second In the accommodating space 161, the second accommodating space 161 communicates with the first accommodating space 151 through the openings 101.

The first sound output cover 15 of this embodiment includes a first bracket 152 and a first diaphragm 153. The first bracket 152 is disposed on one side of the magnetically permeable carrier board 10, and the first diaphragm 153 is disposed on the first bracket 152 away from One side of the magnetically permeable carrier board 10 is connected to the first voice coil 13; similarly, the second sound output cover 16 includes a second bracket 162 and a second diaphragm 163, and the second bracket 162 is disposed on the magnetically permeable carrier board 10 On the other side of, the second diaphragm 163 is arranged on the side of the second bracket 162 away from the magnetically conductive carrier 10 and connected to the second voice coil 14.

When the double-sided speaker device 1 of this embodiment is operating, as shown in FIGS. 3 and 4, both ends of the first voice coil 13 and both ends of the second voice coil 14 are connected to an external power source, and the external power source is connected to Electric current flows 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, which changes the magnitude of the current flowing into the first voice coil 13 and the second voice coil 14 The magnitude and direction of the magnetic field generated by the first voice coil 13 and the second voice coil 14 are changed.

The magnetic field generated by the first voice coil 13 interacts with the magnetic field generated by the first magnetic circuit module 11, causing the first voice coil 13 to vibrate orthogonal to the direction of the current, and the first voice coil 13 drives the first diaphragm 153 to produce Vibrate to produce sound; similarly, the magnetic field generated by the second voice coil 14 interacts with the magnetic field generated by the second magnetic circuit module 12 to cause the second voice coil 14 to vibrate orthogonal to the direction of the current. 14 drives the second diaphragm 163 to vibrate to generate sound. The double-sided speaker device 1 of this embodiment transmits through the magnetic carrier 10, the first voice coil 13, the first magnetic circuit module 11 and the first sound output cover 15 The first speaker part and the magnetic carrier board 10, the second voice coil 14, the second magnetic circuit module 12 and the second sound output cover 16 are formed to form a second speaker part to achieve double-sided speaker.

It should be further explained that since the same vibration quality of the first voice coil 13 and the second voice coil 14 cancel each other, the vibration of the double-sided speaker device 1 is reduced, and the vibration of the first diaphragm 153 and the second diaphragm 163 is increased. Area to enhance the performance of the double-sided speaker device 1. In addition, the first accommodating space 151 and the second accommodating space 161 of this embodiment are respectively two resonant cavities of the double-sided speaker device 1, and the two resonant cavities are connected through the openings 101, so that the double-sided speaker is not increased. With the volume of the sound device 1, increasing the volume of the resonant cavity of the double-sided speaker device 1 can effectively improve the stereo sound quality of the double-sided speaker device 1.

Please continue to refer to FIG. 2 and FIG. 4, the surface where the first bracket 152 and the first diaphragm 153 are connected in this embodiment further has a first wiring groove 1523, the first wiring groove 1523 and the first accommodating space 151 Connected; similarly, the surface of the second bracket 162 connected with the second diaphragm 163 also has a second wiring groove 1623, and the second wiring groove 1623 communicates with the second accommodating space 161. Both ends of the first voice coil 13 are respectively passed through the first wiring groove 1523 to the outside to be connected to an external power source. Similarly, both ends of the second voice coil 14 are respectively passed through the second wiring groove 1623 to the outside to Connect with external power supply.

Please also refer to FIG. 4, which is a cross-sectional view along line AA' in FIG. 1. As shown in the figure, the first magnetic circuit module 11 of this embodiment includes a first magnetic body 111 and a first magnetic conductive plate 112. The first magnetic body 111 is disposed on one side of the magnetically conductive carrier 10, and the first magnetically conductive plate 112 is disposed on the side of the first magnetic body 111 away from the magnetically conductive carrier 10. Similarly, the second magnetic circuit module 12 includes a second magnetic body 121 and a second magnetic conductive plate 122. The second magnetic body 121 is disposed on the other side of the magnetic conductive carrier board 10, and the second magnetic conductive plate 122 is disposed on the The side of the two magnetic bodies 121 away from the magnetically conductive carrier 10. The magnetic poles of the magnetically permeable carrier board 10 of this embodiment are different from the magnetic poles of the first magnetic body 111 and the second magnetic body 121. The magnetic poles of the two magnetic bodies 121 are different. For example, the magnetic poles of the magnetic carrier 10, the first magnetic conductive plate 112 and the second magnetic conductive plate 122 are N poles, and the magnetic poles of the first magnetic body 111 and the second magnetic body 121 are S pole.

2 and FIG. 3 and FIG. 5 at the same time, FIG. 5 is a cross-sectional view along the line B-B' in FIG. 1. The magnetically conductive carrier board 10 of this embodiment has a magnetically conductive plate body 102 and a plurality of positioning cantilevers 103. One end of the positioning cantilevers 103 is respectively connected to the magnetically conductive plate body 102, and the positioning cantilevers 103 are arranged at intervals on the magnetically conductive plate body 102. The other ends of the positioning cantilevers 103 are respectively connected to the first sound output cover 15 and the second sound output cover 16, and the openings 101 are respectively located between two adjacent positioning cantilevers 103. In this embodiment In an example, the number of positioning cantilevers 103 is four. One ends of the four positioning cantilevers 103 are respectively arranged at the four corners of the magnetic plate body 102, and the other ends of the four positioning cantilevers 103 are from the four corners of the magnetic plate body 102. Extending to the first sound output cover 15 and the second sound output cover 16, the space between two adjacent positioning cantilevers 103 is the opening 101 of the magnetically conductive carrier board 10. In other words, the opening 101 is located adjacent to each other. Between the two positioning cantilevers 103.

The other ends of the positioning cantilevers 103 also have positioning portions 1031 respectively. The first bracket 152 corresponds to the positioning portions 1031 of the positioning cantilevers 103 with a plurality of first positioning portions 1521, and the second bracket 162 corresponds to the positioning of the positioning cantilevers 103. The portion 1031 is provided with a plurality of second positioning portions 1621, and the positioning portions 1031 of the positioning cantilevers 103 are respectively connected to the first positioning portions 1521 and the second positioning portions 1621, and the first sound output cover 15 is welded by laser welding. , The magnetic carrier board 10 and the second sound hood 16 are connected as a whole. The positioning portion 1031 in this embodiment is a perforation, the first positioning portions 1521 are positioning grooves or positioning posts, and the second positioning portions 1621 are positioning posts or positioning grooves. The positioning posts pass through the perforations and are disposed in the positioning groove.

Please also refer to FIG. 6, which is a cross-sectional view along the line C-C' in FIG. The plates 17 are respectively connected to two opposite sides of the magnetically conductive carrier plate 10. In this embodiment, the two side magnetically conductive plates 17 are respectively disposed on the opposite sides of the magnetically conductive carrier plate 10 in the first direction X, that is, two The two side magnetic conductive plates 17 are respectively arranged on the left and right sides of the magnetic conductive carrier 10. In this embodiment, the two side magnetic conductive plates 17 are respectively located at the two openings 101 on the left and right sides of the magnetic conductive plate body 102. The two side magnetic conductive plates 17 are respectively located in the corresponding openings 101 and extend to the first accommodating space 151 and the second accommodating space 161. Both ends of the two side magnetic conductive plates 17 are connected to two adjacent positioning cantilevers. 103 connections. The first voice coil 13 is located between the two side magnetic conductive plates 17 and the first magnetic circuit module 11, and the second voice coil 14 is located between the two lateral magnetic conductive plates 17 and the second magnetic circuit module 12. The magnetic poles of the two side magnetic conductive plates 17 in this embodiment are the same as the magnetic poles of the magnetic conductive carrier plate 10.

In this embodiment, as shown in FIGS. 3, 5 and 6, the two ends of the two side magnetic conductive plates 17 are respectively connected to the positioning portions 1031 of two adjacent positioning cantilevers 103. The two side magnetic conductive plates 17 respectively have a magnetic conductive portion 171 and two abutting convex portions 172. The two abutting convex portions 172 are respectively located at both ends of the magnetic conductive portion 171. The magnetic conductive portion 171 of this embodiment is opposite to the two The two abutting protrusions 172 protrude toward the first voice coil 13 or the second voice coil 14. The other ends of the positioning cantilevers 103 also have abutting recesses 1032. The two abutting protrusions 172 of the two side magnetic conductive plates 17 are respectively provided in the abutting recesses 1032 of two adjacent positioning cantilevers 103, through The two abutting protrusions 172 are respectively disposed in the corresponding abutting recesses 1032 to restrict the movement of the side magnetic conductive plate 17 to the magnetic conductive plate body 102 to locate the side magnetic conductive plate 17 in the corresponding opening 101. The opposite sides of the magnetic conductive plate body 102 of this embodiment also have abutting protrusions 1021 respectively. The abutting projections 1021 abut against the corresponding side magnetic conductive plate 17, and the left and right sides of the magnetic conductive plate 102 of this embodiment Each has an abutting convex portion 1021. Through the contact protrusion 1021, the side magnetic conductive plate 17 can be restricted from moving toward the magnetic conductive plate body 102, and the magnetic conductive portion 171 of the side magnetic conductive plate 17 can also be supported to stabilize the side magnetic conductive plate 17 in the corresponding opening 101.

The side of the first bracket 152 away from the first diaphragm 153 also has a plurality of first limiting notches 1522, and the side of the second bracket 162 away from the second diaphragm 163 also has a plurality of first limiting notches 1522 corresponding to the first limiting notches 1522. In the second limiting gap 1622, the two abutting convex portions 172 of the two side magnetic conductive plates 17 are respectively located at the corresponding first limiting gap 1522 and the second limiting gap 1622. The side walls of the first limiting gap 1522 and the second limiting gap 1622 in the third direction Z restrict the abutting convex portion 172 from moving in the third direction Z, thereby preventing the two side magnetic conductive plates 17 from moving in the third direction Z Move upward; at the same time, the sidewalls of the first and second limiting gaps 1522 and 1622 in the second direction Y and the side walls of the abutting recess 1032 in the second direction Y restrict the abutting convex portion 172 in the second Move in the direction Y, thereby preventing the two side magnetic conductive plates 17 from moving in the second direction Y, so that the two side magnetic conductive plates 17 can be fixed in the corresponding openings 101 respectively.

The double-sided speaker device 1 of this 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 output cover 15 The 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, both ends of the second damper 18b are connected to the second sound hood 16 The second bracket 162 is connected, and the second damper 18 b 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 this 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 that the first voice coil 13 and the second The distance between a magnetic circuit module 11 and the side magnetic conductive plate 17 and the distance between the second voice coil 14 and the second magnetic circuit module 12 and the side magnetic conductive plate 17, while ensuring the first voice coil 13 and the first The second voice coil 14 vibrates in the third direction Z.

As shown in FIG. 3, the first damper 18a and the second damper 18b of this embodiment respectively have a limiting portion 181, two connecting portions 182, and two elastic buffer portions 183, and the two connecting portions 182 are respectively disposed on the limiting portion. At opposite ends of the positioning portion 181, two elastic buffer portions 183 are respectively connected to the corresponding connecting portion 182 and the limiting portion 181. The two elastic buffer portions 183 of this embodiment respectively have a bending elastic piece 1831, and the bending elastic piece 1831 also has a plurality of bending sections 1831a. It should be further explained that the first damper 18a and the second damper 18b are in the shape of a sheet, and the center is hollowed out for connecting the first magnetic circuit module 11 and the second magnetic circuit module 12, respectively. Therefore, when the double-sided speaker device 1 is in the operating state, the first magnetic circuit module 11 and the second magnetic circuit module 12 can reciprocate stably in the third direction Z.

In summary, the present application provides a double-sided speaker device, which forms a first speaker portion and a magnetic carrier board through a magnetically permeable carrier board, a first voice coil, a first magnetic circuit module, and a first sound output cover. , The second voice coil, the second magnetic circuit module and the second sound output cover form the second speaker part, the first voice coil and the second voice coil use the first magnetic circuit module and the second magnetic circuit module independently The group achieves double-sided loudspeakers. At the same time, the same vibration quality of the first voice coil and the second voice coil can cancel each other, reduce the vibration of the double-sided speaker device, increase the vibration area of the first diaphragm and the second diaphragm, and improve the performance of the double-sided speaker device. In addition, the first accommodating space and the second accommodating space are respectively the two resonant cavities of the double-sided speaker device, and the two resonant cavities are connected through a plurality of openings, so that the volume of the double-sided speaker device is increased without increasing the volume of the double-sided speaker device. The volume of the resonant cavity of the double-sided speaker device can effectively improve the sound quality of the double-sided speaker device.

1: Double-sided speaker device 10: Magnetic carrier board 101: opening 102: Permeable plate body 1021: Abutment convex part 103: Positioning cantilever 1031: Positioning Department 1032: against the notch 11: The first magnetic circuit module 111: The first magnetic body 112: The first magnetic permeable plate 12: The second magnetic circuit module 121: second magnetic body 122: second magnetic permeable plate 13: The first voice coil 14: second voice coil 15: The first sound hood 151: First housing space 152: The first bracket 1521: The first positioning part 1522: First limit gap 1523: The first wire slot 153: first diaphragm 16: The second sound hood 161: Second housing space 162: second bracket 1621: The second positioning part 1622: second limit gap 1623: second wire slot 163: second diaphragm 17: Side magnetic plate 171: Permeable part 172: Lean against the convex part 18a: first damper 18b: second damper 181: Limit 182: Connection 183: Elastic cushion 1831: Bending shrapnel 1831a: bending section X: first direction Y: second direction Z: Third party

The drawings described here are used to provide a further understanding of the application and constitute a part of the application. The exemplary embodiments and descriptions of the application are used to explain the application, and do not constitute an improper limitation of the application. In the schema: Fig. 1 is a perspective view of a double-sided speaker device according to an embodiment of the present application; Figure 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; Figure 4 is a cross-sectional view taken along the line A-A' in Figure 1; Figure 5 is a cross-sectional view taken along the line B-B' in Figure 1; and Fig. 6 is a cross-sectional view taken along the line C-C' in Fig. 1.

1: Double-sided speaker device

10: Magnetic carrier board

103: Positioning cantilever

15: The first sound hood

152: The first bracket

1522: First limit gap

153: first diaphragm

16: The second sound hood

162: second bracket

1622: second limit gap

163: second diaphragm

172: Lean against the convex part

X: first direction

Y: second direction

Z: Third party

Claims (15)

A double-sided loudspeaker device, which includes: A magnetic carrier board with a plurality of openings; A first magnetic circuit module set on one side of the magnetically permeable carrier board; A second magnetic circuit module is arranged on the other side of the magnetically permeable carrier board. The second magnetic circuit module is opposite to the first magnetic circuit module. The openings are located between the first magnetic circuit module and the first magnetic circuit module. Between the second magnetic circuit module; A first voice coil, arranged around the first magnetic circuit module; A second voice coil, arranged around the second magnetic circuit module, the second voice coil corresponding to the first voice coil; A first sound-out cover body is arranged on one side of the magnetic carrier board, the first sound-out cover body has a first accommodating space, the first magnetic circuit module and the first voice coil are located on the first side In a housing space; and A second sound-out cover is arranged on the other side of the magnetic carrier plate, the second sound-out cover has a second accommodating space, and the second magnetic circuit module and the second voice coil are located in the In the second accommodating space, the second accommodating space communicates with the first accommodating space through the openings. The double-sided speaker device according to claim 1, wherein the first magnetic circuit module includes a first magnetic body and a first magnetic conductive plate, and the first magnetic body is disposed on one of the magnetic conductive carrier plates. Side, the first magnetic conductive plate is arranged on the side of the first magnetic body away from the magnetic conductive carrier; the second magnetic circuit module includes a second magnetic body and a second magnetic conductive plate, the second magnetic The body is arranged on the other side of the magnetically permeable carrier plate, and the second magnetically permeable plate is arranged on the side of the second magnetic body away from the magnetically permeable carrier plate. The double-sided speaker device according to claim 2, which further includes two side magnetic conductive plates, the two side magnetic conductive plates are respectively connected to two opposite sides of the magnetic conductive carrier plate, and the two side magnetic conductive plates are respectively located at In a corresponding opening and extending to the first accommodating space and the second accommodating space, the first voice coil is located between the two side magnetic conductive plates and the first magnetic circuit module, and the second voice coil Located between the two-side magnetic conductive plates and the second magnetic circuit module. The double-sided speaker device according to claim 3, wherein the magnetically conductive carrier board has a magnetically conductive plate body and a plurality of positioning cantilevers, one end of the positioning cantilevers is respectively connected with the magnetically conductive plate body, and the positioning cantilevers The other ends of the positioning cantilevers are respectively connected with the first and second sound-emitting hoods, and the openings are respectively located between two adjacent positioning cantilevers. . The double-sided loudspeaker device according to claim 4, wherein the opposite sides of the magnetic conductive plate body further have an abutting convex portion respectively, and the abutting convex portion abuts the corresponding one side of the magnetic conductive plate. The double-sided loudspeaker device according to claim 4, wherein the first sound output cover includes a first support and a first diaphragm, the first support is arranged on one side of the magnetically permeable carrier, the The first diaphragm is arranged on the side of the first bracket away from the magnetic carrier board and connected to the first voice coil; the second sound output cover includes a second bracket and a second diaphragm, the second The bracket is arranged on the other side of the magnetically permeable carrier plate, and the second diaphragm is arranged on a side of the second bracket away from the magnetically permeable carrier plate and is connected with the second voice coil. The double-sided loudspeaker device according to claim 6, wherein the other ends of the positioning cantilevers further respectively have a positioning portion, and the first bracket is provided with a plurality of first positioning portions corresponding to the positioning portion of the positioning cantilevers, The second bracket is provided with a plurality of second positioning parts corresponding to the positioning parts of the positioning cantilevers, and the positioning parts of the positioning cantilevers are respectively connected with the first positioning parts and the second positioning parts. The double-sided speaker device according to claim 7, wherein both ends of the two side magnetic conductive plates are respectively connected to the positioning portions of the two adjacent positioning cantilevers. The double-sided speaker device according to claim 7, wherein the positioning portion is a perforation, the first positioning portions are a positioning groove or a positioning pillar, and the second positioning portions are a positioning pillar or a positioning pillar. Positioning grooves, the positioning pillars respectively pass through the perforations and are arranged in the positioning grooves. The double-sided speaker device according to claim 7, wherein the two side magnetic conductive plates respectively have a magnetic conductive portion and two abutting convex portions, and the two abutting convex portions are respectively located at two ends of the magnetic conductive portion, The other ends of the positioning cantilevers also have an abutting recess, and the two abutting protrusions of the two side magnetic conductive plates are respectively disposed in the abutting recesses of the two adjacent positioning cantilevers. The double-sided speaker device according to claim 10, wherein the side of the first support away from the first diaphragm further has a plurality of first limiting notches, and the side of the second support away from the second diaphragm There are also a plurality of second limiting notches corresponding to the first limiting notches, and the two abutting convex portions of the two side magnetic conductive plates are respectively located at a corresponding first limiting notch and a second limiting notch. The double-sided loudspeaker device according to claim 7, which further includes a first damper and a second damper, and two ends of the first damper are connected to the first bracket of the first sound output cover Connected, the first damper is located between the first magnetic circuit module and the two side magnetic conductive plates and is in contact with the first voice coil; both ends of the second damper are connected to the The second bracket is connected, and the second damper is located between the second magnetic circuit module and the two side magnetic conductive plates and is in contact with the second voice coil. The double-sided loudspeaker device according to claim 12, wherein the first damper and the second damper respectively have a limiting portion, two connecting portions, and two elastic buffer portions, and the two connecting portions are respectively disposed on the At opposite ends of the limiting portion, the two elastic buffer portions are respectively connected to a corresponding connecting portion and the limiting portion. The double-sided speaker device according to claim 13, wherein the two elastic buffer portions each have a bent elastic piece, and the bent elastic piece further has a plurality of bent sections. The double-sided speaker device according to claim 6, wherein the surface of the first bracket connected with the first diaphragm further has a first wiring groove, the first wiring groove and the first accommodating space Connected; the surface of the second bracket connected with the second diaphragm also has a second wiring groove, and the second wiring groove communicates with the second accommodating space.

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