Bifacial loudspeaker device

Abstract

The application discloses a double-sided loudspeaker device, comprising: a magnetic conductive carrier plate having a side wall and a bottom plate, one side surface of the bottom plate having a first side edge and a second side edge opposite to the first side edge, the side wall being arranged at the first side edge. An auxiliary magnetic conductive member is arranged at the second side edge. A side magnetic conductive member is arranged at the side edge of the other side surface of the bottom plate. A first magnetic circuit module is arranged at one side of the magnetic conductive carrier plate. A second magnetic circuit module is arranged at the other side of the magnetic conductive carrier plate. A first voice coil is located between the first magnetic circuit module, the side wall and the auxiliary magnetic conductive member. A second voice coil is located between the second magnetic circuit module and the side magnetic conductive member. A first vibration assembly is arranged at one side of the magnetic conductive carrier plate, the first vibration assembly having a first accommodating space, the first magnetic circuit module and the first voice coil being located in the first accommodating space. A second vibration assembly is arranged at the other side of the magnetic conductive carrier plate, the second vibration assembly having a second accommodating space, the second magnetic circuit module and the second voice coil being located in the second accommodating space, and the second accommodating space being communicated with the first accommodating space.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of loudspeaking devices, and particularly relates to a double-sided loudspeaking device. BACKGROUND

[0002] In the prior art, a double-sided loudspeaking device is usually formed by using two voice coils in combination with a common magnetic circuit module. The inside of the double-sided loudspeaking device is divided into two resonance spaces by the magnetic circuit module. The two voice coils are respectively located in the two resonance spaces. The two resonance spaces are not connected, which results in poor sound quality of the double-sided loudspeaking device. If the resonance space is increased to improve the sound quality of the double-sided loudspeaking device, the volume of the double-sided loudspeaking device will be increased, which is not suitable for thin electronic devices. SUMMARY

[0003] Embodiments of the present application provide a double-sided loudspeaking device to solve the problem of poor sound quality of the double-sided loudspeaking device.

[0004] To solve the above technical problems, the present application is implemented as follows:

[0005] A double-sided loudspeaking device is provided, which comprises a magnetic conduction carrier plate, an auxiliary magnetic conduction member, a side magnetic conduction member, a first magnetic circuit module, a second magnetic circuit module, a first voice coil, a second voice coil, a first vibration assembly and a second vibration assembly. The magnetic conduction carrier plate has a side wall and a bottom plate. One side surface of the bottom plate has a first side edge and a second side edge opposite to the first side edge. The side wall is arranged at the first side edge. The auxiliary magnetic conduction member is detachably assembled at the second side edge. The side magnetic conduction member is arranged at the side edge of the other side surface of the bottom plate and corresponds to the side wall. The first magnetic circuit module is arranged at one side of the magnetic conduction carrier plate. The second magnetic circuit module is arranged at the other side of the magnetic conduction carrier plate. The first voice coil is located between the first magnetic circuit module and the side wall. The second voice coil is located between the second magnetic circuit module and the side magnetic conduction member. The first vibration assembly is arranged at one side of the magnetic conduction carrier plate. The first vibration assembly has a first accommodating space. The first magnetic circuit module and the first voice coil are located in the first accommodating space. The second vibration assembly is arranged at the other side of the magnetic conduction carrier plate. The second vibration assembly has a second accommodating space. The second magnetic circuit module and the second voice coil are located in the second accommodating space. The second accommodating space is connected to the first accommodating space. The overall height of the side wall and the auxiliary magnetic conduction member is greater than or equal to the overall height of the first magnetic circuit module and / or the second magnetic circuit module.

[0006] In one embodiment, the first vibration assembly comprises a first support and a first diaphragm. The first support is arranged at the side wall and the auxiliary magnetic conduction member of the magnetic conduction carrier plate. The first diaphragm is arranged at the side of the first support away from the side wall and connected to the first voice coil. The second vibration assembly comprises a second support and a second diaphragm. The second support is arranged at the side magnetic conduction member. The second diaphragm is arranged at the side of the second support away from the side magnetic conduction member and connected to the second voice coil.

[0007] In one of the embodiments, the first magnetic circuit module further comprises a first magnetic body and a first magnetic conducting plate, the first magnetic body is disposed on one side surface of the base plate, and the first magnetic conducting plate is disposed on the side of the first magnetic body away from the base plate. The second magnetic circuit module further comprises a second magnetic body and a second magnetic conducting plate, the second magnetic body is disposed on the other side surface of the base plate, and the second magnetic conducting plate is disposed on the side of the second magnetic body away from the base plate.

[0008] In one of the embodiments, the height of the side wall is higher than the height of the first magnetic body or / and the height of the second magnetic body.

[0009] In one of the embodiments, the height of the auxiliary magnetic conducting member is higher than the height of the first magnetic body or / and the height of the second magnetic body.

[0010] In one of the embodiments, the height of the side magnetic conducting member is higher than the height of the first magnetic body or / and the height of the second magnetic body.

[0011] In one of the embodiments, the side magnetic conducting member has a through hole, and the second support has a fixing protrusion, the fixing protrusion is disposed in the through hole.

[0012] In one of the embodiments, one end of the fixing protrusion has a fixing end, and one end of the through hole has a fixing hole part matched with the fixing end, when the fixing protrusion is disposed in the through hole, the fixing end is embedded in the fixing hole part.

[0013] In one of the embodiments, the first support has a first docking structure, and the second support has a second docking structure, the first docking structure and the second docking structure are opposite to each other, and the first docking structure and the second docking structure are connected and fixed to each other.

[0014] In one of the embodiments, the side magnetic conducting member has two, and each side magnetic conducting member has a notch part, and the two side edges of the other side surface of the base plate are respectively clamped in the notch parts of the two side magnetic conducting members.

[0015] In one of the embodiments, the magnetic conducting carrier further comprises a plurality of communication holes, the plurality of communication holes are located on the base plate, and the plurality of communication holes are communicated between the first accommodating space and the second accommodating space.

[0016] In one of the embodiments, the plurality of communication holes are arranged along the arrangement direction of the side wall and the auxiliary magnetic conducting member.

[0017] In one of the embodiments, the plurality of communication holes are located close to the side wall or / and the auxiliary magnetic conducting member.

[0018] In one of the embodiments, the first electrical connector is disposed on the first support and exposed on the outer surface of the first support, the first voice coil is electrically connected to the first electrical connector, the second electrical connector is disposed on the second support and exposed on the outer surface of the second support, and the second voice coil is electrically connected to the second electrical connector.

[0019] In one of the embodiments, the first electrical connector is disposed on the first support and exposed on the outer surface of the first support, the first voice coil is electrically connected to the first electrical connector, the second electrical connector is disposed on the second support and exposed on the outer surface of the second support, and the second voice coil is electrically connected to the second electrical connector.

[0020] In one of the embodiments, the first voice coil surrounds the first magnetic circuit module with a spacing, and the second voice coil surrounds the second magnetic circuit module with a spacing.

[0021] In one of the embodiments, the side wall and the bottom plate are integrally formed, and the magnetic conductive carrier plate is in the shape of an L-shaped plate body.

[0022] In one of the embodiments, the first accommodating space and the second accommodating space are in communication with each other through the front and rear ends of the magnetic conductive carrier plate.

[0023] In one of the embodiments, the auxiliary magnetic conductive member is provided with a matching clamping notch corresponding to the second side edge, and the clamping notch is assembled to the second side edge.

[0024] In one of the embodiments, the clamping notch has a pressing surface and an engaging surface, the pressing surface presses against the top surface of the bottom plate, and the engaging surface abuts against the second side edge.

[0025] The application provides a double-sided loudspeaker device, which forms a first loudspeaker part through a magnetic conductive carrier plate, an auxiliary magnetic conductive member, a first voice coil, a first magnetic circuit module, and a first vibration assembly. A second loudspeaker part is formed by the magnetic conductive carrier plate, a side magnetic conductive member, a second voice coil, a second magnetic circuit module, and a second vibration assembly. The first voice coil and the second voice coil independently use the first magnetic circuit module and the second magnetic circuit module to achieve double-sided loudspeaking. The first accommodating space and the second accommodating space are two resonance cavities of the double-sided loudspeaker device, and the two resonance cavities are in communication with each other. In this way, the resonance cavity volume of the double-sided loudspeaker device is increased without increasing the volume of the double-sided loudspeaker device, which can effectively improve the sound quality effect of the double-sided loudspeaker device. BRIEF DESCRIPTION OF DRAWINGS

[0026] 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 embodiments of the application and serve to explain the principles of the application. In the drawings:

[0027] Figure 1 is a perspective view of the double-sided loudspeaker device of the application;

[0028] Figure 2 is a sectional view along the line A-A' of Figure 1 ;

[0029] Figure 3 is a sectional view along the line A-A' of Figure 1 ;

[0030] Figure 4 is an exploded view of the double-sided loudspeaker device of the present application;

[0031] Figure 5 is another exploded view of the double-sided loudspeaker device of the present application; and

[0032] Figure 6 is a perspective view of the magnetic conductive carrier plate of the present application.

[0033] The following description will be made in connection with the accompanying drawings:

[0034] 1: double-sided loudspeaker device; 11: magnetic conductive carrier plate; 111: side wall; 112: bottom plate; 1121: first side edge; 1122: second side edge; 113: communication hole; 12: side magnetic conductive member; 121: notched portion; 122: through hole; 1221: fixing hole portion; 13: first magnetic circuit module; 131: first magnetic body; 132: first magnetic conductive plate; 14: second magnetic circuit module; 141: second magnetic body; 142: second magnetic conductive plate; 15: first voice coil; 16: second voice coil; 17: first vibration assembly; 170: first accommodating space; 171: first support; 1711: first butt joint structure; 172: first diaphragm; 18: second vibration assembly; 180: second accommodating space; 181: second support; 1811: second butt joint structure; 1812: fixing protrusion; 18121: fixing end; 182: second diaphragm; 191: first electrical connection member; 192: second electrical connection member; 21: auxiliary magnetic conductive member; 211: clamping notch; 2111: pressing surface; 2112: joint surface; H11: height of the side wall; H12: height of the auxiliary magnetic conductive member; H21: height of the first magnetic body; H22: height of the second magnetic body; H13: height of the side magnetic conductive member. DETAILED DESCRIPTION

[0035] The present application will be described hereinafter with reference to drawings demonstrating embodiments of the present application. Numerous specific details will be set forth in the following description in order to provide a thorough understanding of the present application. It will be appreciated, however, by those of ordinary skill that the present application can be practiced without such specific details. In other instances, well-known structures and components are not described in detail in order to avoid obscuring the present application. The same numbers are used in different drawings to identify the same or similar components.

[0036] Reference is made to Figures 1 to 4, Figure 1 is a perspective view of a double-sided loudspeaker device of the present application, Figure 2 is Figure 1 is a cross-sectional perspective view of the A-A' line of Figure 3 is Figure 1 is a cross-sectional view of the A-A' line of Figure 4 is an exploded view of a double-sided loudspeaker device of the first embodiment. As shown in the figure, the present application provides a double-sided loudspeaker device 1, which comprises a magnetic-conductive carrier plate 11, an auxiliary magnetic-conductive member 21, a side magnetic-conductive member 12, a first magnetic circuit module 13, a second magnetic circuit module 14, a first voice coil 15, a second voice coil 16, a first vibration assembly 17, and a second vibration assembly 18. The magnetic-conductive carrier plate 11 has a side wall 111 and a bottom plate 112, one side surface of the bottom plate 112 has a first side edge 1121 and a second side edge 1122 opposite to the first side edge 1121, the side wall 111 is arranged at the first side edge 1121, and the magnetic-conductive carrier plate 11 as a whole has a plate body shape extending in an L shape; and the auxiliary magnetic-conductive member 21 is arranged at the second side edge 1122, so that the side wall 111 and the auxiliary magnetic-conductive member 21 correspond to each other, and the magnetic-conductive carrier plate 11 and the auxiliary magnetic-conductive member 21 form a three-dimensional extension structure in a U shape. The side magnetic-conductive member 12 is arranged at the side edge of the other side surface of the bottom plate 112. The first magnetic circuit module 13 is arranged at one side of the magnetic-conductive carrier plate 11. The second magnetic circuit module 14 is arranged at the other side of the magnetic-conductive carrier plate 11. The first voice coil 15 surrounds the first magnetic circuit module 13 in a spaced manner, and the first voice coil 15 is located between the first magnetic circuit module 13 and the side wall 111 and the auxiliary magnetic-conductive member 21. The second voice coil 16 surrounds the second magnetic circuit module 14 in a spaced manner, and the second voice coil 16 is located between the second magnetic circuit module 14 and the side magnetic-conductive member 12. The first vibration assembly 17 is arranged at one side of the magnetic-conductive carrier plate 11, and the first vibration assembly 17 has a first accommodating space 170, the first magnetic circuit module 13 and the first voice coil 15 are located in the first accommodating space 170. The second vibration assembly 18 is arranged at the other side of the magnetic-conductive carrier plate 11, and the second vibration assembly 18 has a second accommodating space 180, the second magnetic circuit module 14 and the second voice coil 16 are located in the second accommodating space 180, and the second accommodating space 180 is communicated with the first accommodating space 170. Wherein, the first accommodating space 170 and the second accommodating space 180 are communicated with each other through the front and rear ends of the magnetic-conductive carrier plate 11 without the side wall 111, the auxiliary magnetic-conductive member 21 and the side magnetic-conductive member 12, so that the air between the first vibration assembly 17 and the second vibration assembly 18 flows through each other during operation, thereby improving the effect of generating stereo resonance sound.

[0037] In the embodiment, the height of the sidewall 111 of the magnetic conductive carrier plate 11 and the height of the auxiliary magnetic conductive member 21 are greater than or equal to the height of the first magnetic circuit module 13 and / or the second magnetic circuit module 14, and the height of the sidewall 111 and the height of the auxiliary magnetic conductive member 21 correspond to each other, so that the magnetic conductive carrier plate 11 and the auxiliary magnetic conductive member 21 form a U-shaped extension structure when they are combined. In addition, the height of the sidewall 111 and the height of the auxiliary magnetic conductive member 21 are greater than the height of the first magnetic circuit module 13 and / or the second magnetic circuit module 14. Specifically, the sidewall 111 and the bottom plate 112 are integrally formed. The side magnetic conductive member 12 has two notches 121, and the two side edges of the other side surface of the bottom plate 112 are respectively clamped in the notches 121 of the two side magnetic conductive members 12. The sidewall 111, the auxiliary magnetic conductive member 21 and the side magnetic conductive member 12 correspond to each other relative to the two side positions of the bottom plate 112.

[0038] Furthermore, the first magnetic circuit module 13 further includes a first magnetic body 131 and a first magnetic conductive plate 132. The first magnetic body 131 is arranged on one side surface of the bottom plate 112, and the first magnetic conductive plate 132 is arranged on the side of the first magnetic body 131 away from the bottom plate 112. The second magnetic circuit module 14 further includes a second magnetic body 141 and a second magnetic conductive plate 142. The second magnetic body 141 is arranged on the other side surface of the bottom plate 112, and the second magnetic conductive plate 142 is arranged on the side of the second magnetic body 141 away from the bottom plate 112. In terms of the height of the bottom plate 112 perpendicular to the magnetic conductive carrier plate 11, the height H11 of the sidewall 111 and the height H12 of the auxiliary magnetic conductive member 21 are higher than the height H21 of the first magnetic body 131 or / and the height H22 of the second magnetic body 141. When the height H11 of the sidewall 111 of the magnetic conductive carrier plate 11 and the height H12 of the auxiliary magnetic conductive member 21 are higher than the height H21 of the first magnetic body 131, it indicates that the sidewall 111 of the magnetic conductive carrier plate 11 and the auxiliary magnetic conductive member 21 can cover most of the magnetic force line range of the first magnetic body 131, and the sidewall 111 of the magnetic conductive carrier plate 11 and the auxiliary magnetic conductive member 21 can help the magnetic force line of the first magnetic body 131 to concentrate, so that the first magnetic body 131 can generate better magnetic field effect. Furthermore, the height H13 of the side magnetic conductive member 12 is higher than the height H21 of the first magnetic body 131 or / and the height H22 of the second magnetic body 141. When the height H13 of the side magnetic conductive member 12 is higher than the height H22 of the second magnetic body 141, it indicates that the magnetic conductive carrier plate 11 and the side magnetic conductive member 12 can cover most of the magnetic force line range of the second magnetic body 141, and also generate better magnetic field effect.

[0039] Please refer to Figure 5is another exploded view of the double-sided loudspeaker device of the first embodiment of the present application. As shown in the figure, in the present embodiment, the first vibration assembly 17 includes a first support 171 and a first diaphragm 172, the first support 171 is arranged on one side of the magnetic conductive carrier plate 11, the first diaphragm 172 is arranged on the side of the first support 171 away from the side wall 111 and the auxiliary magnetic conductive member 21, and the first diaphragm 172 is connected with the first voice coil 15. The second vibration assembly 18 includes a second support 181 and a second diaphragm 182, the second support 181 is arranged on the other side of the magnetic conductive carrier plate 11, the second diaphragm 182 is arranged on the side of the second support 181 away from the side magnetic conductive member 12, and the second diaphragm 182 is connected with the second voice coil 16. Among them, the first support 171 is fixed on the side wall 111 and the auxiliary magnetic conductive member 21, and the second support 181 is fixed on the side magnetic conductive member 12.

[0040] Further, the first support 171 is arranged on the side wall 111 and the auxiliary magnetic conductive member 21 of the magnetic conductive carrier plate 11, and the second support 181 is arranged on the side magnetic conductive member 12. The present embodiment also does not limit the arrangement mode of the auxiliary magnetic conductive member 21, and the auxiliary magnetic conductive member 21 can also be assembled on the first side edge 1121 and the second side edge 1122 of the bottom plate 112 instead of the side wall 111. In the present embodiment, the auxiliary magnetic conductive member 21 is provided with a matching clamping notch 211 corresponding to the shape of the second side edge 1122, and the clamping notch 211 is assembled on the second side edge 1122, wherein the clamping notch 211 has a pressing surface 2111 and an abutting surface 2112, the pressing surface 2111 and the abutting surface 2112 are adjacent to each other, the pressing surface 2111 presses against the top surface of the bottom plate 112, and the abutting surface 2112 abuts against the second side edge 1122, so that the auxiliary magnetic conductive member 21 can be fixedly assembled on the magnetic conductive carrier plate 11; in other embodiments, the clamping notch 211 can be adhered to the second side edge 1122 by adhesive.

[0041] In addition, each side magnetic conductive member 12 has a through hole 122, and the second support 181 has a fixing protrusion 1812, the fixing protrusion 1812 is arranged in the through hole 122. Among them, one end of the fixing protrusion 1812 has a fixing end 18121, one end of the through hole 122 has a fixing hole part 1221 matched with the fixing end 18121, when the fixing protrusion 1812 is arranged in the through hole 122, the fixing end 18121 is embedded in the fixing hole part 1221, and the fixing end 18121 is used to limit the side magnetic conductive member 12 from being separated from the fixing protrusion 1812.

[0042] Further, the first support 171 has a first docking structure 1711, and the second support 181 has a second docking structure 1811. The first docking structure 1711 and the second docking structure 1811 are opposite to each other. The first support 171 is arranged on the second support 181, and the first docking structure 1711 and the second docking structure 1811 are connected and fixed to each other. The first docking structure 1711 and the second docking structure 1811 can be a convex column or a hole groove. The first docking structure 1711 and the second docking structure 1811 are arranged opposite to each other, so that the convex column is embedded in the hole groove, thereby enhancing the fixing strength between the first support 171 and the second support 181.

[0043] In addition, in the embodiment, the double-sided loudspeaker device 1 further comprises a first electrical connection member 191 and a second electrical connection member 192. The first electrical connection member 191 is arranged on the first support 171 and exposed on the outer surface of the first support 171. The first voice coil 15 is electrically connected to the first electrical connection member 191. The second electrical connection member 192 is arranged on the second support 181 and exposed on the outer surface of the second support 181. The second voice coil 16 is electrically connected to the second electrical connection member 192. The position of the first electrical connection member 191 on the first support 171 corresponds to the position of the second electrical connection member 192 on the second support 181.

[0044] In the embodiment, the external power supply passes current to the first voice coil 15 through the first electrical connection member 191, and also passes current to the second voice coil 16 through the second electrical connection member 192. The first voice coil 15 and the second voice coil 16 generate magnetic fields under the action of the current. In this way, the size and direction of the magnetic field generated by the first voice coil 15 and the second voice coil 16 can be changed by changing the size of the current passing through the first voice coil 15 and the second voice coil 16. The magnetic field of the first voice coil 15 interacts with the magnetic field of the first magnetic circuit module 13, so that the first voice coil 15 generates vibration perpendicular to the direction of the current. The first voice coil 15 drives the first diaphragm 172 to vibrate and generate sound. Similarly, the magnetic field of the second voice coil 16 interacts with the magnetic field of the second magnetic circuit module 14, so that the second voice coil 16 generates vibration perpendicular to the direction of the current. The second voice coil 16 drives the second diaphragm 182 to vibrate and generate sound. The double-sided loudspeaker device 1 of the embodiment forms a first loudspeaker part through the magnetic conductive carrier plate 11, the auxiliary magnetic conductive member 21, the first magnetic circuit module 13, the first voice coil 15, and the first vibration assembly 17. The magnetic conductive carrier plate 11, the side magnetic conductive member 12, the second magnetic circuit module 14, the second voice coil 16, and the second vibration assembly 18 form a second loudspeaker part, achieving double-sided loudspeaking.

[0045] Further, the same vibration mass of the first voice coil 15 and the second voice coil 16 cancels each other, which reduces the vibration of the double-sided loudspeaker device 1, increases the vibration area of the first diaphragm 172 and the second diaphragm 182, and improves the performance of the double-sided loudspeaker device 1. In addition, the first accommodating space 170 and the second accommodating space 180 of the embodiment are two resonance cavities of the double-sided loudspeaker device 1, and the two resonance cavities are communicated with each other. In this way, the resonance cavity volume of the double-sided loudspeaker device 1 is increased without increasing the volume of the double-sided loudspeaker device 1, which effectively improves the stereo sound quality effect of the double-sided loudspeaker device 1.

[0046] Referring to Figure 6 is a perspective view of the magnetic guide carrier plate of the present application. As shown in the figure, the embodiment further includes a plurality of communication holes 113. The plurality of communication holes 113 are located on the bottom plate 112, and the plurality of communication holes 113 are communicated between the first accommodating space 170 and the second accommodating space 180. The plurality of communication holes 113 help the resonance effect of the first accommodating space 170 and the second accommodating space 180, that is, the vibration air flow during operation flows between the first accommodating space 170 and the second accommodating space 180. Among them, the plurality of communication holes 113 are arranged along the arrangement direction of the side wall 111, and the plurality of communication holes 113 are located close to the side wall 111 or the auxiliary magnetic guide piece 21. The embodiment does not limit the arrangement and arrangement of the communication holes 113 on the bottom plate 112, and the bottom plate 112 structure of the magnetic guide carrier plate 11 of the embodiment can be applied.

[0047] In summary, the present application provides a double-sided loudspeaker device. The magnetic guide carrier plate, the auxiliary magnetic guide piece, the first voice coil, the first magnetic circuit module, and the first vibration assembly form the first loudspeaker part. The magnetic guide carrier plate, the side magnetic guide piece, the second voice coil, the second magnetic circuit module, and the second vibration assembly form the second loudspeaker part. The first voice coil and the second voice coil independently use the first magnetic circuit module and the second magnetic circuit module to achieve double-sided loudspeaker. The first accommodating space and the second accommodating space are two resonance cavities of the double-sided loudspeaker device, and the two resonance cavities are communicated with each other. In this way, the resonance cavity volume of the double-sided loudspeaker device is increased without increasing the volume of the double-sided loudspeaker device, which effectively improves the sound quality effect of the double-sided loudspeaker device.

[0048] It should also be noted that the terms "comprising", "including", or any other variant thereof are intended to cover non-exclusive inclusion, so that processes, methods, articles or devices that include a series of elements not only include those elements, but also include other elements not explicitly listed, or inherent to such processes, methods, articles or devices. Without more limitations, the element defined by the statement "comprising a" does not exclude the presence of additional identical elements in the process, method, article or device that includes the element.

[0049] The foregoing description illustrates and describes several preferred embodiments of the present application. However, it is to be understood that the application is not limited to the precise forms described, and that changes can be made therein without departing from the scope of the present application. Other embodiments of the application will be apparent to those skilled in the art from consideration of the specification and practice of the application disclosed herein. Therefore, the scope of the present application should be determined by the following claims.

Claims

1. A double-sided loudspeaker device, characterized by It includes: A magnetic conductive carrier plate with a side wall and a bottom plate, one side surface of the bottom plate has a first side edge and a second side edge opposite to the first side edge, the side wall is arranged at the first side edge; An auxiliary magnetic conductive member, which is detachably assembled at the second side edge and corresponds to the side wall; Two side magnetic conductive members, each of which has a notch part, and two side edges of the other side surface of the bottom plate are respectively clamped in the notch parts of the two side magnetic conductive members; A first magnetic circuit module arranged at one side of the magnetic conductive carrier plate; A second magnetic circuit module arranged at the other side of the magnetic conductive carrier plate; A first voice coil located between the first magnetic circuit module, the side wall and the auxiliary magnetic conductive member; A second voice coil located between the second magnetic circuit module and the side magnetic conductive member; A first vibration assembly arranged at one side of the magnetic conductive carrier plate, the first vibration assembly has a first accommodating space, the first magnetic circuit module and the first voice coil are located in the first accommodating space; And A second vibration assembly arranged at the other side of the magnetic conductive carrier plate, the second vibration assembly 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; Wherein, the overall height of the side wall and the auxiliary magnetic conductive member is greater than or equal to the overall height of the first magnetic circuit module and / or the second magnetic circuit module.

2. The double-sided loudspeaker device as claimed in claim 1, characterized in that The first vibration assembly includes a first support and a first diaphragm, the first support is arranged at the side wall and the auxiliary magnetic conductive member of the magnetic conductive carrier plate, the first diaphragm is arranged at the side of the first support away from the side wall and the auxiliary magnetic conductive member and connected with the first voice coil, the second vibration assembly includes a second support and a second diaphragm, the second support is arranged at the side magnetic conductive member, and the second diaphragm is arranged at the side of the second support away from the side magnetic conductive member and connected with the second voice coil.

3. The double-sided loudspeaker device according to claim 1 or 2, wherein The first magnetic circuit module further includes a first magnetic body and a first magnetic conductive plate, the first magnetic body is arranged at one side surface of the bottom plate, the first magnetic conductive plate is arranged at the side of the first magnetic body away from the bottom plate, the second magnetic circuit module further includes a second magnetic body and a second magnetic conductive plate, the second magnetic body is arranged at the other side surface of the bottom plate, and the second magnetic conductive plate is arranged at the side of the second magnetic body away from the bottom plate.

4. The dual-sided loudspeaker device of claim 3, wherein, The height of the side wall is higher than the height of the first magnetic body or / and the height of the second magnetic body.

5. The dual-sided speaker device of claim 3, wherein, The height of the auxiliary magnetic conductive member is higher than the height of the first magnetic body or / and the height of the second magnetic body.

6. The dual-sided speaker device of claim 3, wherein, The height of the side magnetic conductive member is higher than the height of the first magnetic body or / and the height of the second magnetic body.

7. The dual-sided speaker device of claim 2, wherein, The side magnetic conductive member has a through hole, the second support has a fixing protruding column, and the fixing protruding column is arranged in the through hole.

8. The dual-sided speaker device of claim 7, wherein, One end of the fixing protruding column has a fixing end head, one end of the through hole has a fixing hole part matched with the fixing end head, when the fixing protruding column is arranged in the through hole, the fixing end head is embedded in the fixing hole part.

9. The dual-sided speaker device of claim 2, wherein, The first support has a first docking structure, and the second support has a second docking structure, the first docking structure and the second docking structure are opposite to each other, and the first docking structure and the second docking structure are fixedly connected to each other.

10. The dual-sided loudspeaker device of claim 1, wherein, The magnetic conductive carrier further comprises a plurality of communication holes, which are located on the bottom plate and communicate between the first accommodating space and the second accommodating space.

11. The dual-sided loudspeaker device of claim 10, wherein, The plurality of communication holes are arranged along the arrangement direction of the side wall and the auxiliary magnetic conductive member.

12. The dual-sided loudspeaker device of claim 10, wherein, The plurality of communication holes are located close to the side wall or / and the auxiliary magnetic conductive member.

13. The dual-sided speaker device of claim 2, wherein, Further comprising a first electrical connector and a second electrical connector, the first electrical connector is arranged on the first support and exposed on the outer surface of the first support, the first voice coil is electrically connected to the first electrical connector, the second electrical connector is arranged on the second support and exposed on the outer surface of the second support, and the second voice coil is electrically connected to the second electrical connector.

14. The double-sided loudspeaker device of claim 13, wherein, The position of the first electrical connector on the first support corresponds to the position of the second electrical connector on the second support.

15. The dual-sided loudspeaker device of claim 1, wherein, The first voice coil surrounds the first magnetic circuit module with a spacing, and the second voice coil surrounds the second magnetic circuit module with a spacing.

16. The dual-sided loudspeaker device of claim 1, wherein, The side wall and the bottom plate are integrally formed, and the magnetic conductive carrier as a whole is in the shape of an L-shaped plate.

17. The dual-sided loudspeaker of claim 1, wherein, The first accommodating space and the second accommodating space are communicated with each other through the front and rear ends of the magnetic conductive carrier.

18. The binaural speaker apparatus of any one of claims 1-2 and 7-17, wherein, The auxiliary magnetic conductive member is provided with a matching clamping notch corresponding to the shape of the second side, and the clamping notch is connected to the second side.

19. The double-sided loudspeaker device of claim 18, wherein, The clamping notch has a pressing surface and an engaging surface, the pressing surface presses against the top surface of the bottom plate, and the engaging surface abuts against the second side.

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