Double-sided sounding loudspeaker

Abstract

The utility model discloses a double-sided sound production loudspeaker, which comprises a shell, a magnetic circuit system and a vibration unit, the magnetic circuit system comprises a magnetic conductive seat connected with the shell, the magnetic conductive seat comprises a main magnetic plate and side magnetic plates, the side magnetic plates are respectively arranged on two sides of the main magnetic plate along a first direction at intervals, the main magnetic plate is provided with a main magnetic unit, and the main magnetic unit is provided with a plurality of vibration units. An edge magnetic unit is arranged on the edge magnetic plate; the vibrating unit comprises vibrating diaphragms and voice coils, the two vibrating diaphragms are arranged on the shell in a spaced mode in the second direction, the voice coils are arranged on the two vibrating diaphragms, and the voice coils are located between the main magnetic unit and the side magnetic units. According to the double-sided sounding loudspeaker, the two sides of the magnetic circuit system are respectively provided with one vibration unit, so that the two voice coils can form two independent magnetic fields through the main magnetic unit and the side magnetic units respectively, double-sided sounding is realized, the two magnetic fields share one magnetic conductive seat, the space occupied by the magnetic circuit system along the first direction is reduced, and the space occupied by the magnetic circuit system along the second direction is reduced. And the miniaturization and thinning development of the double-sided sounding loudspeaker is facilitated.

Description

Technical Field

[0001] This utility model relates to the field of electroacoustic conversion technology, and in particular to a double-sided loudspeaker. Background Technology

[0002] With the development of technology, more and more electronic products are moving towards miniaturization and thinning. A loudspeaker is a device that can convert electrical energy into sound energy. It generally works by passing an electric current through a conductive element (usually a voice coil), which causes the conductive element to experience a change in the force in a magnetic field. This causes the system composed of the conductive element and the diaphragm to vibrate to different degrees, ultimately producing sound at different frequencies.

[0003] In existing technologies, to achieve better sound effects, loudspeakers are generally designed to produce sound from both sides, i.e., bi-directional loudspeakers. Bi-directional loudspeakers are composed of two symmetrically arranged vibrating components and two magnetic circuit components separated by a partition. Each set of vibrating and magnetic components functions independently to achieve the dual-directional sound output of the loudspeaker. However, the structure of the two sets of vibrating and magnetic components is relatively complex, and the two sets of magnetic circuit components occupy a significant amount of space, hindering the miniaturization and thinning of loudspeakers. Utility Model Content

[0004] The purpose of this invention is to provide a dual-sided loudspeaker with a simple structure, in which the two vibration units share a common magnetic circuit system, achieving a thin profile and dual-sided sound generation.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] A dual-sided loudspeaker is provided, comprising a housing, a magnetic circuit system, and a vibration unit. The magnetic circuit system includes a magnetic base, a main magnetic unit, and a side magnetic unit. The magnetic base is connected to the housing and includes a main magnetic plate and a side magnetic plate. The side magnetic plates are spaced apart on both sides of the main magnetic plate along a first direction. The main magnetic plate is connected to the side magnetic plates via a connector. The main magnetic unit is disposed on the main magnetic plate, and each side magnetic plate is provided with a side magnetic unit. The vibration unit is disposed on both sides of the magnetic circuit system along a second direction. The vibration unit includes a diaphragm and a voice coil. Two diaphragms are spaced apart on the housing along the second direction, and the voice coil is disposed on the side of the two diaphragms adjacent to each other. The voice coil is located between the main magnetic unit and the side magnetic unit. The first direction is perpendicular to the second direction.

[0007] As a preferred embodiment of a dual-sided loudspeaker, the connector includes a first connecting portion, a second connecting portion, and a third connecting portion. The main magnetic plate extends downward along both sides of the third direction with the first connecting portion, and the side magnetic plate extends downward along both sides of the third direction with the second connecting portion. The first connecting portion is connected to the adjacent second connecting portion through the third connecting portion, and the third connecting portion is connected to the housing. The third direction is perpendicular to the first direction and the second direction, respectively.

[0008] As a preferred embodiment of a dual-sided loudspeaker, the housing includes a first frame and a second frame that are interconnected, the first frame and the second frame enclosing a mounting cavity, the magnetic circuit system and the vibration unit being disposed within the mounting cavity, and the third connecting portion being detachably connected to the first frame.

[0009] As a preferred embodiment of a dual-sided loudspeaker, the first frame has a first side surface arranged along the third direction, and the first side surface is provided with a snap-fit ​​groove, into which the third connecting part snaps.

[0010] As a preferred embodiment of a dual-sided loudspeaker, the first frame has a limiting part, the limiting part and the first side are spaced apart to form a limiting groove, and the first connecting part is engaged in the limiting groove.

[0011] As a preferred embodiment of a dual-sided loudspeaker, the first frame has a second side surface arranged along the first direction, and the side magnetic plate has a third side surface away from the main magnetic plate. One of the second side surface and the third side surface is provided with a first positioning part, and the other side surface is provided with a first positioning groove. The first positioning part is inserted into the first positioning groove.

[0012] As a preferred embodiment of a dual-sided loudspeaker, a second positioning part is provided on one side of the two adjacent sides of the first frame and the second frame, and a second positioning groove is provided on the other side, with the second positioning part inserted into the second positioning groove.

[0013] In a preferred embodiment of a dual-sided loudspeaker, the two voice coils are a first voice coil and a second voice coil. The first frame has a first positive connection and a first negative connection on both sides along the third direction. The first voice coil is disposed within the first frame and is electrically connected to the first positive connection and the first negative connection. The second frame has a second positive connection and a second negative connection on both sides along the third direction. The second voice coil is disposed within the second frame and is electrically connected to the second positive connection and the second negative connection.

[0014] As a preferred embodiment of a dual-sided loudspeaker, the main magnetic unit includes a main magnet and a main magnetic plate. The main magnet is disposed on the main magnetic plate, and the main magnetic plate is disposed on the side of the main magnet away from the main magnetic plate. The side magnetic unit includes a side magnet and a side magnetic plate. The side magnet is disposed on each side magnetic plate, and the side magnetic plate is disposed on the side of the side magnet away from the side magnetic plate.

[0015] As a preferred embodiment of a dual-sided loudspeaker, the main magnet and / or the side magnet are symmetrically arranged about the third connecting portion along the first direction.

[0016] The beneficial effects of this utility model are as follows: By setting a vibration unit on each side of the magnetic circuit system along the second direction, the two voice coils can form two independent magnetic fields through the main magnetic unit and the side magnetic unit, respectively. This allows the two voice coils to drive the two diaphragms through electromagnetic action to achieve double-sided sound generation. Furthermore, the two magnetic fields share a single magnetic base, reducing the space occupied by the magnetic circuit system along the first direction. This facilitates the miniaturization and thinning of the double-sided speaker. It also allows for an appropriate increase in the thickness of the main magnetic unit and the side magnetic unit along the first direction within the same housing size, thereby increasing the force factor and improving the sensitivity of the double-sided speaker. Attached Figure Description

[0017] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.

[0018] Figure 1 This is a schematic diagram of the structure of a double-sided loudspeaker according to an embodiment of the present invention;

[0019] Figure 2 This is a cross-sectional view of a double-sided loudspeaker according to an embodiment of the present invention;

[0020] Figure 3 This is an explosion diagram of a double-sided loudspeaker according to an embodiment of the present invention. Figure 1 ;

[0021] Figure 4 This is an explosion diagram of a double-sided loudspeaker according to an embodiment of the present invention. Figure 2 ;

[0022] Figure 5 This is a schematic diagram of the cooperation between the magnetic guide base and the first frame in an embodiment of this utility model;

[0023] Figure 6 This is an exploded view of the magnetic guide base and the first frame according to an embodiment of the present invention;

[0024] Figure 7 This is a schematic diagram of the structure of the magnetic base according to an embodiment of the present invention.

[0025] In the picture:

[0026] 1. Housing; 11. First frame; 111. First side; 112. Snap-fit ​​groove; 113. Limiting part; 114. Limiting groove; 115. Second side; 116. First positioning part; 117. First positive electrode connection part; 118. First negative electrode connection part; 119. Second positioning groove; 12. Second frame; 121. Second positioning part; 122. Second positive electrode connection part; 123. Second negative electrode connection part; 13. Mounting cavity; 2. Magnetic circuit system; 21. Magnetic guide base; 2 11. Main magnetic plate; 212. Side magnetic plate; 2121. Third side surface; 2122. First positioning groove; 213. Connector; 2131. First connecting part; 2132. Second connecting part; 2133. Third connecting part; 22. Main magnetic unit; 221. Main magnet; 222. Main magnetic plate; 23. Side magnetic unit; 231. Side magnet; 232. Side magnetic plate; 3. Vibration unit; 31. Diaphragm; 32. Voice coil; 32a. First voice coil; 32b. Second voice coil. Detailed Implementation

[0027] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0028] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0029] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0030] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0031] like Figures 1 to 7 As shown, the dual-sided loudspeaker of this utility model embodiment includes a housing 1, a magnetic circuit system 2, and a vibration unit 3. The magnetic circuit system 2 includes a magnetic guide base 21, a main magnetic unit 22, and a side magnetic unit 23. The magnetic guide base 21 is connected to the housing 1. The magnetic guide base 21 includes a main magnetic plate 211 and a side magnetic plate 212. Side magnetic plates 212 are respectively arranged on both sides of the main magnetic plate 211 along a first direction (the first direction is the X direction shown in the figure). The main magnetic plate 211 is connected to the side magnetic plates 212 through a connector 213. The main magnetic unit 22 is disposed on the housing 1. On the main magnetic plate 211, each side magnetic plate 212 is provided with a side magnetic unit 23; the magnetic circuit system 2 is provided with vibration units 3 on both sides along the second direction (the second direction is the Z direction shown in the figure, i.e., the vertical direction). The vibration unit 3 includes a diaphragm 31 and a voice coil 32. The two diaphragms 31 are spaced apart on the housing 1 along the second direction. The voice coil 32 is provided on the side of the two diaphragms 31 that are adjacent to each other. The voice coil 32 is located between the main magnetic unit 22 and the side magnetic unit 23. The first direction is perpendicular to the second direction.

[0032] It is understandable that by setting a vibration unit 3 on each side of the magnetic circuit system 2 along the second direction, the two voice coils 32 can form two independent magnetic fields through the main magnetic unit 22 and the side magnetic unit 23 respectively. This allows the two voice coils 32 to drive the two diaphragms 31 through electromagnetic action, achieving double-sided sound generation. Furthermore, the two magnetic fields share a single magnetic base 21, reducing the space occupied by the magnetic circuit system 2 along the first direction. This facilitates the miniaturization and thinning of the double-sided loudspeaker. Compared to the traditional scheme where the two magnetic circuit systems 2 include two sets of main magnetic units 22 and side magnetic units 23 separated by a partition, this double-sided loudspeaker reduces one set of magnetic circuit system 2 and the partition. The design, which directly sets the main magnetic unit 22 and the side magnetic unit 23 on a single magnetic base 21, is simple in structure, greatly reducing the complexity of production and assembly of the dual-sided loudspeaker, reducing production costs, and effectively reducing the thickness of the magnetic circuit system 2, thereby reducing the thickness of the dual-sided loudspeaker. Furthermore, it is possible to appropriately increase the thickness of the main magnetic unit 22 and the side magnetic unit 23 along the first direction within the same housing size 1, thereby increasing the force factor to improve the sensitivity of the dual-sided loudspeaker. Alternatively, it is possible to appropriately increase the thickness of the magnetic base 21 along the first direction within the same housing size 1, thereby effectively expanding the displacement variable of the diaphragm in the driving force factor and improving the calibration width of the loudspeaker's audio signal.

[0033] Furthermore, such as Figure 7 As shown, the connector 213 includes a first connecting part 2131, a second connecting part 2132, and a third connecting part 2133. The main magnetic plate 211 extends downward along both sides of the third direction with the first connecting part 2131 (the third direction is the Y direction shown in the figure). The side magnetic plate 212 extends downward along both sides of the third direction with the second connecting part 2132. The first connecting part 2131 is connected to the adjacent second connecting part 2132 through the third connecting part 2133. The third connecting part 2133 is connected to the housing 1. The third direction is perpendicular to the first direction and the second direction, respectively. In other words, the main magnetic plate 211 and the side magnetic plate 212 are spaced apart to form a clearance area so that the voice coil 32 located on one side of the magnetic base 21 can pass through the clearance area and be inserted between the main magnetic unit 22 and the side magnetic unit 23. The voice coil 32 is arranged in a ring around the outside of the electromagnetic unit. Therefore, the connection is achieved by bending the first connecting part 2131 and the second connecting part 2132 along the first direction with a length greater than the size of the voice coil 32, while satisfying the clearance of the voice coil 32 placement.

[0034] In this embodiment, the magnetic base 21 is integrally stamped, that is, the connector 213 is formed by stamping downwards on the protrusions on both sides along the third direction of a whole plate, and two openings are opened at intervals along the first direction on the top surface of the whole plate to form a clearance area. This facilitates production, and the integral stamping structure has high strength, reduces the number of structures in the magnetic circuit system 2, simplifies the assembly process of the magnetic base 21, and improves the assembly efficiency of the dual-sided speaker. In addition, the magnetic base 21 can also be integrally injection molded, and the integral molding structure has advantages such as high structural strength and convenient production and installation.

[0035] Optionally, such as Figure 2 , Figure 3 and Figure 4 As shown, the housing 1 includes a first frame 11 and a second frame 12 connected to each other. The first frame 11 and the second frame 12 enclose a mounting cavity 13. The magnetic circuit system 2 and the vibration unit 3 are disposed within the mounting cavity 13. The third connecting part 2133 is detachably connected to the first frame 11. By disassembling the housing 1 into two structures for assembly, the production convenience of the housing 1 can be improved. The first frame 11 and the second frame 12 can be directly welded together at the magnetic circuit system 2 and the vibration unit 3 to ensure the structural strength of the overall double-sided speaker. Of course, the first frame 11 can also be connected to the second frame 12 by adhesive.

[0036] Furthermore, such as Figure 5 and Figure 6 As shown, the first frame 11 has a first side surface 111 arranged along a third direction. The first side surface 111 is provided with a snap-fit ​​groove 112. The third connecting part 2133 snaps into the snap-fit ​​groove 112. The connection between the magnetic base 21 and the housing 1 is achieved through the snap-fit ​​between the third connecting part 2133 and the snap-fit ​​groove 112. The snap-fit ​​is secure and can be quickly installed without the aid of other tools, simplifying the assembly process of the magnetic base 21 and improving the assembly efficiency of the dual-sided speaker. In addition, the snap-fit ​​structure not only ensures a secure connection but also makes the disassembly process more convenient. When it is necessary to repair, update, or replace parts of the magnetic base 21, the third connecting part 2133 can be removed from the snap-fit ​​groove 112 through a simple disassembly operation, saving time and costs.

[0037] Furthermore, the first frame 11 has a limiting part 113, which forms a limiting groove 114 with the first side surface 111 at a distance. The first connecting part 2131 is engaged within the limiting groove 114. The engagement between the first connecting part 2131 and the limiting groove 114 further enhances the connection stability and reliability between the magnetic base 21 and the housing 1. The groove wall of the engaging groove 112 restricts the third connecting part 2133 along the first and second directions, while the groove wall of the limiting groove 114 restricts the movement of the first connecting part 2131 along the third direction, thereby achieving omnidirectional constraint of the magnetic base 21 and ensuring the installation stability of the magnetic base 21.

[0038] Preferably, the first frame 11 has a second side surface 115 arranged along a first direction, and the side magnetic plate 212 has a third side surface 2121 away from the main magnetic plate 211. The second side surface 115 is provided with a first positioning part 116, and the third side surface 2121 is provided with a first positioning groove 2122. The first positioning part 116 is inserted into the first positioning groove 2122. Through the cooperation of the first positioning part 116 and the first positioning groove 2122, the installation accuracy of the guide seat and the housing 1 is improved, and the groove wall of the first positioning groove 2122 can further restrict the movement of the first positioning part 116 along the third direction, further ensuring the installation stability of the magnetic guide seat 21. Of course, in addition to the first positioning part 116 being provided on the second side surface 115 and the first positioning groove 2122 being provided on the third side surface 2121, the first positioning part 116 can also be provided on the third side surface 2121 and the first positioning groove 2122 can be provided on the second side surface 115.

[0039] In some embodiments, such as Figure 2 and Figure 3 As shown, a second positioning part 121 is provided on the side of the first frame 11 facing the second frame 12, and a second positioning groove 119 is provided on the side of the second frame 12 facing the first frame 11. The second positioning part 121 is inserted into the second positioning groove 119. The cooperation between the second positioning part 121 and the second positioning groove 119 improves the positioning accuracy during assembly of the first frame 11 and the second frame 12. Furthermore, the insertion of the second positioning part 121 into the second positioning groove 119 effectively prevents relative movement between the frames, increasing the structural stability after assembly. Besides placing the second positioning part 121 on the side of the first frame 11 facing the second frame 12 and the second positioning groove 119 on the side of the second frame 12 facing the first frame 11, the second positioning part 121 can also be placed on the side of the second frame 12 facing the first frame 11, and the second positioning groove 119 on the side of the first frame 11 facing the second frame 12.

[0040] Furthermore, such as Figure 2 , Figure 3 and Figure 4As shown, the two voice coils 32 are a first voice coil 32a and a second voice coil 32b, respectively. A first positive connection portion 117 and a first negative connection portion 118 are respectively provided on both sides of the first frame 11 along a third direction. The first voice coil 32a is disposed within the first frame 11 and is electrically connected to the first positive connection portion 117 and the first negative connection portion 118. A second frame 12 has a second positive connection portion 122 and a second negative connection portion 123 respectively provided on both sides of the second frame 12 along a third direction. The second voice coil 32b is disposed within the second frame 12 and is electrically connected to the second positive connection portion 122 and the second negative connection portion 123. The positive and negative connection portions facilitate the connection of the battery cells of the voice coils 32. In this embodiment, the first positive terminal connection 117 and the second positive terminal connection 122 are disposed on the same side along the third direction, and the first negative terminal connection 118 and the second negative terminal connection 123 are disposed on the other side along the third direction, so as to correspond to the polarity of the external input line.

[0041] In this embodiment, the main magnetic unit 22 includes a main magnet 221 and a main magnetic plate 222. The main magnet 221 is disposed on the main magnetic plate 211, and the main magnetic plate 222 is disposed on the side of the main magnet 221 away from the main magnetic plate 211. The side magnetic unit 23 includes a side magnet 231 and a side magnetic plate 232. Each side magnetic plate 212 is provided with a side magnet 231, and the side magnetic plate 232 is disposed on the side of the side magnet 231 away from the side magnetic plate 212. A clearance area is formed between the main magnetic plate 222 and the side magnetic plate 232. The voice coil 32 adjacent to the side of the main magnetic plate 222 passes through the clearance area and is disposed between the main magnet 221 and the side magnet 231. Magnetic guiding structures are provided on both sides of the main magnet 221 and the side magnet 231 along the second direction. The entire magnetic circuit system 2 has only one main magnet 221 and two side magnets 231, resulting in a simple structure.

[0042] Furthermore, along the first direction, both the main magnet 221 and the side magnet 231 are symmetrically arranged about the third connecting portion 2133. That is, the main magnetic plate 211 and the main magnetic plate 222 are symmetrically arranged about the third connecting portion 2133, ensuring that the third connecting portion 2133 is connected to the housing 1. At the same time, it can ensure the balanced and stable magnetic conduction effect of the two magnetic plates, ensuring that the two magnetic fields are more uniform in the working area. A uniform magnetic field helps to improve the sound quality performance of the speaker and reduce unnecessary distortion.

[0043] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A double-sided sound producing loudspeaker, characterized by include: case; A magnetic circuit system, comprising a magnetic base, a main magnetic unit, and a side magnetic unit, wherein the magnetic base is connected to the housing, the magnetic base includes a main magnetic plate and side magnetic plates, the side magnetic plates are respectively spaced apart on both sides of the main magnetic plate along a first direction, the main magnetic plate is connected to the side magnetic plates through a connector, the main magnetic unit is disposed on the main magnetic plate, and each side magnetic plate is respectively disposed with a side magnetic unit; The vibration unit is provided on both sides of the magnetic circuit system along the second direction. The vibration unit includes a diaphragm and a voice coil. The two diaphragms are spaced apart on the housing along the second direction. The voice coil is provided on the side of the two diaphragms that are adjacent to each other. The voice coil is located between the main magnetic unit and the side magnetic unit. The first direction is perpendicular to the second direction.

2. The double-sided sound emitting loudspeaker of claim 1, wherein, The connector includes a first connecting part, a second connecting part, and a third connecting part. The main magnetic plate extends downward along both sides of the third direction with the first connecting part. The side magnetic plate extends downward along both sides of the third direction with the second connecting part. The first connecting part is connected to the adjacent second connecting part through the third connecting part. The third connecting part is connected to the housing. The third direction is perpendicular to the first direction and the second direction, respectively.

3. The double-sided sound emitting loudspeaker of claim 2, wherein, The housing includes a first frame and a second frame that are connected to each other. The first frame and the second frame enclose a mounting cavity. The magnetic circuit system and the vibration unit are disposed in the mounting cavity. The third connecting part is detachably connected to the first frame.

4. The double-sided sound emitting loudspeaker of claim 3, wherein, The first frame has a first side surface arranged along the third direction, and the first side surface is provided with a snap-fit ​​groove, into which the third connecting part snaps.

5. The double-sided sound emitting loudspeaker of claim 4, wherein, The first frame has a limiting part, and the limiting part and the first side are spaced apart to form a limiting groove, and the first connecting part is engaged in the limiting groove.

6. The double-sided loudspeaker according to claim 3, characterized in that, The first frame has a second side surface arranged along the first direction, and the side magnetic plate has a third side surface away from the main magnetic plate. One of the second side surface and the third side surface is provided with a first positioning part, and the other side surface is provided with a first positioning groove. The first positioning part is inserted into the first positioning groove.

7. The double-sided sound producing loudspeaker of claim 3, wherein, A second positioning part is provided on one side of the two adjacent sides of the first frame and the second frame, and a second positioning groove is provided on the other side, with the second positioning part inserted into the second positioning groove.

8. A double-sided sound producing loudspeaker according to any of claims 3-7, characterized in that, The two voice coils are a first voice coil and a second voice coil. The first frame has a first positive connection and a first negative connection on both sides along the third direction. The first voice coil is disposed within the first frame and is electrically connected to the first positive connection and the first negative connection. The second frame has a second positive connection and a second negative connection on both sides along the third direction. The second voice coil is disposed within the second frame and is electrically connected to the second positive connection and the second negative connection.

9. A double-sided sound producing loudspeaker according to any of claims 2-7, characterized in that, The main magnetic unit includes a main magnet and a main magnetic plate. The main magnet is disposed on the main magnetic plate, and the main magnetic plate is disposed on the side of the main magnet away from the main magnetic plate. The side magnetic unit includes a side magnet and a side magnetic plate. The side magnet is disposed on each side magnetic plate, and the side magnetic plate is disposed on the side of the side magnet away from the side magnetic plate.

10. The double-sided sound producing loudspeaker of claim 9, wherein, Along the first direction, the main magnet and / or the side magnet are symmetrically arranged about the third connecting portion.

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