Double-voice-coil loudspeaker and loudspeaker support thereof

Abstract

The invention relates to the field of loudspeakers, and discloses a loudspeaker support which comprises a bottom plate, a positioning assembly, a connecting plate and a mounting plate, adsorption blocks are fixedly connected to the four corners of the bottom end of the bottom plate, one end of the connecting plate is rotationally connected with the bottom plate through the positioning assembly, and the mounting plate is fixedly connected to the top end of the connecting plate. According to the invention, the loudspeakers can work independently by adopting independent driving, and can also work simultaneously or in a combined manner or at intervals by adopting a mixed driving device, so that the sound quality of the loudspeakers is improved, the orientation and inclination of the loudspeakers can be changed by the bracket, and the sound transmission effect is optimized.

Description

Technical Field

[0001] The present invention relates to the field of loudspeakers, and in particular to a dual-voice coil loudspeaker and a loudspeaker bracket thereof. Background Art

[0002] Bone conduction, a unique method of sound transmission, converts sound into mechanical vibrations of varying frequencies, transmitting them through the human skull, bony labyrinth, inner ear lymph, the augumentary organ, and the auditory center. In existing bone conduction speakers, vibration amplitude and frequency are key factors. The transducer modulates the vibration plate to produce varying vibrations, thereby converting high, mid, and low frequencies.

[0003] However, most traditional bone conduction speakers are equipped with a single voice coil and spring. This simple structure limits the performance of vibration frequency and amplitude. In addition, some speaker brackets sacrifice angle adjustment in the pursuit of compactness, lightness and cost control. While this design meets the needs of specific usage scenarios to a certain extent, it also makes it difficult for users to adjust the angle according to actual needs. To address these issues, a dual-voice coil speaker and speaker bracket are proposed to solve these problems. Summary of the Invention

[0004] The object of the present invention is to provide a dual voice coil loudspeaker and a loudspeaker bracket thereof to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned object, the present invention provides: a speaker stand, comprising a bottom plate, a positioning assembly, a connecting plate, and a mounting plate, wherein the four corners of the bottom end of the bottom plate are fixedly connected to adsorption blocks, one end of the connecting plate is rotatably connected to the bottom plate via the positioning assembly, and the mounting plate is fixedly connected to the top end of the connecting plate;

[0006] Preferably, the positioning assembly includes a positioning ring, the left side of the positioning ring is fixedly connected to the left end of the bottom plate, the inner top of the positioning ring is provided with a first rod groove, the inner part of the positioning ring is fixedly connected to a gear ring cylinder, the outer top of the gear ring cylinder is provided with a second rod groove, the second rod groove and the inner wall of the first rod groove are fixedly connected to a limiting rod, and the interior of the gear ring cylinder is provided with a locking assembly for locking the angle of the connecting plate;

[0007] Preferably, the locking assembly includes a movable tube, the outer portion of the movable tube is rotatably connected to the inner wall of the gear ring cylinder, the outer portion of the movable tube is fixedly connected to an outer gear cylinder, the outer portion of the outer gear cylinder is provided with a notch groove, the rear end of the front end of the movable tube is fixedly connected to a connecting rod, the outer portion of the connecting rod is sleeved with a spring, the outer portion of the gear ring cylinder is rotatably connected to a collar, the inner portion of the collar is fixedly connected to a connecting block;

[0008] Preferably, the adjacent sides of the connecting blocks are engaged with the outside of the notch groove, and the teeth on the distant sides of the adjacent outer gear cylinders are meshed with the teeth on the side of the gear ring cylinder close to the notch groove;

[0009] Preferably, the bottom end of the connecting plate is fixedly connected to the outer right side of the collar, the top end of the connecting plate is fixedly connected to the bottom end of the mounting plate, and the top end of the mounting plate is fixedly connected to a reinforcement ring;

[0010] A dual voice coil speaker, comprising a speaker body and the above-mentioned speaker bracket, wherein the speaker body comprises a bracket ring fixedly connected to a mounting plate, a slot being formed at the inner upper end of the bracket ring, a support wall being formed at the inner bottom end of the bracket ring, spring plates being provided inside the slot and the support wall, a U-cup being fixedly connected to the middle portion of the spring plate at the top end, a ring-shaped T-iron being fixedly connected to the outer top end of the U-cup, a magnetic circuit assembly for sound signal conversion being provided at the bottom end of the ring-shaped T-iron and the interior of the U-cup, a vibration plate being slidably connected to the upper and lower ends of the interior of the bracket ring, and a ring-shaped voice coil being fixedly connected to the side of the vibration plate close to the U-cup;

[0011] Preferably, the magnetic circuit assembly includes a first magnetic circuit component, the top of the first magnetic circuit component is fixedly connected to the top of the annular T-iron, the bottom of the first magnetic circuit component is fixedly connected to an annular washer, and the inner bottom end of the U cup is fixedly connected to a second magnetic circuit component;

[0012] Preferably, the annular voice coil at the top is sleeved on the outside of the second magnetic circuit component, and the U cup is sleeved on the outside of the annular voice coil;

[0013] Preferably, the annular washer is sleeved on the outside of the annular voice coil at the bottom, the bottom end of the annular washer is fixedly connected to the top end of the elastic sheet at the bottom, and the outside of the bracket ring is fixedly connected with a heat dissipation fin.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. In the present invention, the magnetic field of the loudspeaker magnetic circuit is constant, and the dual-ring voice coils can be driven independently to work separately, or can be driven by a mixed drive device to achieve simultaneous, combined or intermittent operation, thereby improving the sound quality of the loudspeaker.

[0016] 2. In the present invention, the outer gear cylinder is indirectly driven to extend and retract by pulling the connecting plate, and then the teeth of the outer gear cylinder slide on the teeth of the gear ring cylinder and then engage, thereby changing the direction and inclination of the speaker, so that the sound can be transmitted to the target area more accurately, avoiding the sound being blocked or reflected, thereby optimizing the sound propagation effect and allowing users to have a better listening experience in different positions. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0018] Figure 2 Schematic diagram of the cross-section of the structure of the bracket ring, the spring piece and the first magnetic circuit component of the present invention;

[0019] Figure 3 This is a schematic structural diagram of the vibration plate, spring piece, and ring-shaped T-iron of the present invention;

[0020] Figure 4 This is a schematic diagram of the disassembled structure of the bracket ring and the spring piece, the first magnetic circuit component and the U cup of the present invention;

[0021] Figure 5 This is a schematic structural diagram of the base plate and reinforcement ring of the present invention;

[0022] Figure 6 This is a schematic diagram of the disassembled structure of the positioning ring, the gear ring cylinder and the movable tube of the present invention;

[0023] Figure 7 Schematic diagram of the matching structure of the gear ring cylinder, the connecting block, the outer gear cylinder and the spring of the present invention;

[0024] Figure 8 Schematic diagram of the disassembly of the collar and its internal structure of the present invention.

[0025] Legend:

[0026] 1. Bracket ring; 2. Slot; 3. Support wall; 4. Spring; 5. U-cup; 6. Ring-shaped T-iron; 7. First magnetic circuit component; 8. Ring-shaped washer; 9. Vibration plate; 10. Ring-shaped voice coil; 11. Second magnetic circuit component; 12. Heat dissipation fin; 13. Bottom plate; 14. Adsorption block; 15. Positioning ring; 16. First rod groove; 17. Gear ring cylinder; 18. Second rod groove; 19. Limit rod; 20. Movable tube; 21. External gear cylinder; 22. Notch groove; 23. Connecting rod; 24. Spring; 25. Connecting block; 26. Ring; 27. Connecting plate; 28. Mounting plate; 29. Reinforcement ring. DETAILED DESCRIPTION

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0028] Reference Figures 1 to 3The present invention provides an embodiment of a speaker stand, comprising a bottom plate 13, a positioning assembly, a connecting plate 27, and a mounting plate 28. The bottom plate 13 serves as the support base of the stand. Adsorption blocks 14 are fixedly connected to the four corners of the bottom end of the bottom plate 13. Adsorption blocks 14 are suction cups that rapidly elastically deform when subjected to force, while utilizing atmospheric pressure to generate a strong adsorption force. This allows the stand to be securely fixed to a desktop during use, effectively preventing displacement due to external interference. This provides a stable and reliable foundation for subsequent angle adjustment operations and the normal operation of the speaker.

[0029] One end of the connecting plate 27 is rotatably connected to the bottom plate 13 via a positioning assembly, and the bottom end of the connecting plate 27 is rotatably connected to the bottom plate 13 via a positioning assembly, thereby achieving the effect of adjusting the rotation angle of the connecting plate 27. The mounting plate 28 is fixedly connected to the top of the connecting plate 27. The mounting plate 28 is located at the top of the connecting plate 27 and forms a fixed acute angle with the connecting plate 27.

[0030] The positioning assembly includes a positioning ring 15, the left side of which is fixedly connected to the left end of the base plate 13. There are two positioning rings 15, which are fixed equidistantly to the edge of the base plate 13. A first rod groove 16 is provided at the inner top of the positioning ring 15. A first rod groove 16 is provided at the inner top of the positioning ring 15. A gear ring cylinder 17 is fixedly connected to the inside of the positioning ring 15. There are two gear ring cylinders 17, and the teeth of the two gear ring cylinders 17 are positioned opposite each other. A second rod groove 18 is provided at the outer top of the gear ring cylinder 17. The second rod groove 18 is located in the same position as the first rod groove 16 and is also located at the outer top of the gear ring cylinder 17.

[0031] The second rod groove 18 is fixedly connected to the inner wall of the first rod groove 16 by a limiting rod 19. The limiting rod 19 limits the rotation of the gear ring cylinder 17 by being installed in the first rod groove 16 and the second rod groove 18. When the connecting plate 27 drives the bottom end to limit the rotation of the outer gear cylinder 21, the limiting rod 19 can prevent the outer gear cylinder 21 from excessive rotation, avoiding structural damage or functional failure due to exceeding a reasonable angle range, and ensuring that the entire bracket is adjusted within a safe and controllable angle range.

[0032] The interior of the gear ring cylinder 17 is provided with a locking assembly for locking the angle of the connecting plate 27. The locking assembly includes a movable tube 20. The outer portion of the movable tube 20 is rotatably connected to the inner wall of the gear ring cylinder 17. When the user operates the connecting plate 27 to adjust the angle, the smooth rotation of the movable tube 20 provides a good feel for the entire adjustment process, allowing the user to easily and accurately control the angle change. The outer portion of the movable tube 20 is fixedly connected to an outer gear cylinder 21. The outer portion of the outer gear cylinder 21 has a notch 22 on the outside. The teeth of the adjacent outer gear cylinders 21 on the far side are meshed with the teeth of the gear ring cylinder 17 on the side close to the notch 22. During the angle adjustment process, the outer gear cylinder 21 slides along the teeth of the gear ring cylinder 17 through the meshing of the teeth to achieve the angle change. The rear end of the front movable tube 20 is fixedly connected to a connecting rod 23. The function of the connecting rod 23 is to connect the adjacent movable tubes 20 so that the two movable tubes 20 and the outer gear cylinder 21 connected thereto can work together. The outer sleeve of the connecting rod 23 is provided with a spring 24. During the angle adjustment process, the rotation of the outer gear cylinder 21 squeezes the spring 24, causing it to deform and compress, and the spring 24 stores energy. When the external force disappears, the spring 24 quickly releases the stored energy, pushing the outer gear cylinder 21 back to its original position, allowing the outer gear cylinder 21 to re-engage along the teeth of the gear ring cylinder 17, thus achieving the automatic locking function after the angle adjustment. The outer rotation of the gear ring cylinder 17 is connected to a collar 26, and the inner part of the collar 26 is fixedly connected to a connecting block 25. The adjacent sides of the adjacent connecting blocks 25 are engaged with the outer side of the notched groove 22. The bottom end of the connecting plate 27 is fixedly connected to the outer right side of the collar 26. The collar 26 is connected to the outer rotation of the gear ring cylinder 17 via an annular guide rail, which can ensure the flexibility of its own rotation and withstand the external force transmitted by the connecting plate 27. When the user pulls the connecting plate 27, the connecting plate 27 drives the ring 26 to rotate around the gear ring cylinder 17. The rotation of the ring 26 further drives the internal fixed connection connection block 25 to move, thereby realizing linkage with the outer gear cylinder 21 and promoting the entire angle adjustment process.

[0033] The top of the connecting plate 27 is fixedly connected to a mounting plate 28, and the top of the mounting plate 28 is fixedly connected to the bottom of the speaker. The top of the mounting plate 28 is firmly connected to the bottom of the speaker by screws, providing a reliable mounting platform for the speaker. The top of the mounting plate 28 is fixedly connected to a reinforcement ring 29, and the outside of the reinforcement ring 29 is fixedly connected to the outside of the speaker. After the speaker is installed, the mounting plate 28 can evenly distribute the weight of the speaker, ensuring the stability of the speaker after installation. The top of the mounting plate 28 is also fixedly connected to the reinforcement ring 29 by welding. The outside of the reinforcement ring 29 fits tightly with the outside of the speaker. During the operation of the speaker, the speaker will vibrate. The reinforcement ring 29 can effectively resist and reduce these vibrations, enhance the firmness of the connection between the speaker and the mounting plate 28, ensure that the speaker always remains in the predetermined position, avoid the speaker position shifting due to vibration and affecting the sound quality, and achieve the best sound transmission effect.

[0034] A dual voice coil loudspeaker comprises a loudspeaker body and the above-mentioned loudspeaker bracket, the loudspeaker body comprising a bracket ring 1 fixedly connected to a mounting plate 28, a slot 2 being provided at the inner upper end of the bracket ring 1, a support wall 3 being provided at the inner bottom end of the bracket ring 1, spring pieces 4 being provided inside the slot 2 and the support wall 3, the top spring piece 4 being embedded in the position of the slot 2, and the top spring piece 4 being embedded in the position of the support wall 3.

[0035] The middle part of the top spring piece 4 is fixedly connected to the U cup 5, and the outer top of the U cup 5 is fixedly connected to the ring-shaped T iron 6. The bottom end of the ring-shaped T iron 6 and the inside of the U cup 5 are both provided with magnetic circuit components for sound signal conversion. The upper and lower ends of the interior of the bracket ring 1 are slidably connected with a vibration plate 9. Two openings are respectively provided at the upper and lower ends of the inner wall of the bracket. The vibration plate 9 can move between the two opening positions, and there is a gap between the opening position and the upper and lower sides of the vibration plate 9. This is to allow the vibration plate 9 to slide at the upper and lower opening positions of the inner wall of the bracket ring 1.

[0036] A ring-shaped voice coil 10 is fixedly attached to the side of the vibration plate 9 near the U-cup 5. There are two ring-shaped voice coils 10, and the outer diameter of the upper ring-shaped voice coil 10 is smaller than that of the lower ring-shaped voice coil 10 at the bottom. The top ring-shaped voice coil 10 is mounted on the outside of the second magnetic circuit component 11, and the U-cup 5 is mounted on the outside of the ring-shaped voice coil 10. The upper ring-shaped voice coil 10 is located between the U-cup 5 and the second magnetic circuit component 11, with a gap between them.

[0037] refer to Figure 2 、 Figure 4 The magnetic circuit assembly includes a first magnetic circuit component 7, the bottom end of the first magnetic circuit component 7 is fixedly connected to a ring washer 8, the bottom end of the ring washer 8 is fixedly connected to the top of the bottom spring piece 4, the first magnetic circuit component 7 includes an annular washer 8 arranged on the upper wall of the bottom spring piece 4, an annular magnet arranged on the upper wall of the annular washer 8, and an annular upper washer on the upper wall of the annular magnet. The upper wall of the annular upper washer is connected to the top spring piece 4, thereby realizing the bandwidth of the mid-bass.

[0038] The top of the first magnetic circuit component 7 is fixedly connected to the top of the annular T-iron 6, the annular washer 8 is sleeved on the outside of the bottom annular voice coil 10, and the inner bottom end of the U cup 5 is fixedly connected to the second magnetic circuit component 11. The second magnetic circuit component 11 (solid structure) includes a lower washer fixed to the inside of the U cup 5, an inner magnet arranged on the upper wall of the inner lower washer, and an inner upper washer arranged on the upper wall of the inner magnet, wherein the inner magnet is a solid structure, thereby realizing the frequency bandwidth of the treble. The outside of the bracket ring 1 is fixedly connected with a heat dissipation fin 12, which is used to assist the speaker in heat dissipation.

[0039] Working Principle: The speaker's magnetic circuit maintains a constant magnetic field. The transducer outputs current to the annular voice coil 10, generating magnetic energy that interacts with the magnetic field to produce vibrations. This allows the upper and lower annular voice coils 10 to operate independently, or simultaneously, in combination, or at intervals using a hybrid drive mechanism. Furthermore, the dual annular voice coils 10 and dual springs 4, combined with the differently structured second magnetic circuit component 11, first magnetic circuit component 7, and annular washer 8, utilize their differential placement within and around the U-cup 5 to optimize the speaker's treble and mid-bass performance. Furthermore, the varying sizes of the springs 4 limit the vibration amplitude and frequency, ensuring stable sound quality. The coaxial arrangement of these components enhances the speaker's operation.

[0040] refer to Figure 6 、 Figure 7 A speaker stand comprises a base plate 13, a positioning assembly, a connecting plate 27, and a mounting plate 28. Adsorption blocks 14, which function as suction cups, are securely attached to the four corners of the base plate 13. When the user presses down on the base plate 13 to lower it, the blocks 14 are squeezed and deformed, allowing them to adhere tightly to the desktop, providing a secure hold and preventing the stand from shifting during speaker angle adjustment.

[0041] One end of the connecting plate 27 is rotatably connected to the bottom plate 13 through a positioning assembly, and the mounting plate 28 is fixedly connected to the top of the connecting plate 27. The mounting plate 28 is used to fix the speaker to ensure the stability of the speaker during use.

[0042] The positioning assembly includes a positioning ring 15, the left side of which is firmly fixed to the left end of the base plate 13, playing a key role in positioning and support. A first rod groove 16 is provided at the inner top of the positioning ring 15, and a gear ring tube 17 is fixedly connected to the inside of the positioning ring 15. A second rod groove 18 is provided at the outer top of the gear ring tube 17, and a limiting rod 19 is fixedly connected to the inner wall of the second rod groove 18 and the first rod groove 16. The limiting rod 19 can limit the range of motion of other components, ensure that each component operates within the specified trajectory, and enhance the overall stability and reliability of the bracket. A locking member is provided inside the gear ring tube 17 to lock the angle of the connecting plate 27.

[0043] The locking member includes a movable tube 20, the outer portion of which is rotatably connected to the inner wall of the gear ring cylinder 17. The outer portion of the movable tube 20 is fixedly connected to an outer gear cylinder 21. The outer portion of the outer gear cylinder 21 is provided with a notched groove 22, which interacts with a connecting block 25 to achieve specific movement and angle adjustment. The rear end of the movable tube 20 is fixedly connected to a connecting rod 23, which is sheathed with a spring 24. The spring 24 plays a key role in the elastic return of the entire structure. When the outer gear cylinder 21 rotates and compresses the spring 24, its elastic force allows it to return to its original position. A collar 26 is rotatably connected to the outer portion of the gear ring cylinder 17, and a connecting block 25 is fixedly connected to the inner portion of the collar 26. The adjacent sides of adjacent connecting blocks 25 engage with the outer portions of the notched groove 22. This engagement allows the connecting blocks 25 to drive the outer gear cylinder 21 to rotate synchronously. The teeth on the far side of the adjacent outer gear cylinder 21 are meshed with the teeth on the side of the gear ring cylinder 17 close to the notch groove 22. When the outer gear cylinder 21 rotates, its outer teeth slide along the outer walls of the opposite teeth of the two gear ring cylinders 17 to achieve angle adjustment and locking.

[0044] The bottom end of connecting plate 27 is fixedly connected to the outer right side of collar 26, and the top end of connecting plate 27 is fixedly connected to the bottom end of mounting plate 28. With this connection, when the user pulls connecting plate 27, it can drive collar 26 to rotate, thereby adjusting the angle of the speaker fixed to mounting plate 28. A reinforcement ring 29 is fixedly connected to the top end of mounting plate 28. This reinforcement ring 29 further strengthens the connection between mounting plate 28 and the speaker, preventing the speaker from shaking or falling off during use.

[0045] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0046] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A speaker stand, characterized in that: The invention comprises a bottom plate (13), a positioning assembly, a connecting plate (27) and a mounting plate (28), wherein the four corners of the bottom end of the bottom plate (13) are fixedly connected with adsorption blocks (14), one end of the connecting plate (27) is rotatably connected to the bottom plate (13) through the positioning assembly, and the mounting plate (28) is fixedly connected to the top end of the connecting plate (27).

2. A speaker stand according to claim 1, characterized in that: The positioning assembly includes a positioning ring (15), the left side of the positioning ring (15) is fixedly connected to the left end of the base plate (13), the inner top of the positioning ring (15) is provided with a first rod groove (16), the inner part of the positioning ring (15) is fixedly connected to a gear ring cylinder (17), the outer top of the gear ring cylinder (17) is provided with a second rod groove (18), the second rod groove (18) is fixedly connected to the inner wall of the first rod groove (16) by a limiting rod (19), and the interior of the gear ring cylinder (17) is provided with a locking assembly for locking the angle of the connecting plate (27).

3. The speaker stand according to claim 2, characterized in that: The locking assembly includes a movable tube (20), the outer portion of the movable tube (20) is rotatably connected to the inner wall of the gear ring cylinder (17), the outer portion of the movable tube (20) is fixedly connected to an outer gear cylinder (21), the outer portion of the outer gear cylinder (21) is provided with a notch groove (22), the front end of the movable tube (20) is fixedly connected to a connecting rod (23), the outer portion of the connecting rod (23) is sleeved with a spring (24), the outer portion of the gear ring cylinder (17) is rotatably connected to a sleeve ring (26), the inner portion of the sleeve ring (26) is fixedly connected to a connecting block (25).

4. The speaker stand according to claim 3, characterized in that: The adjacent side of the connecting blocks (25) is engaged with the outside of the notch groove (22), and the teeth on the distant side of the adjacent outer gear cylinder (21) are meshedly connected with the teeth on the side of the gear ring cylinder (17) close to the notch groove (22).

5. The speaker stand according to claim 3, characterized in that: The bottom end of the connecting plate (27) is fixedly connected to the outer right side of the collar (26), the top end of the connecting plate (27) is fixedly connected to the bottom end of the mounting plate (28), and the top end of the mounting plate (28) is fixedly connected to a reinforcement ring (29).

6. A dual voice coil loudspeaker, characterized in that: The invention comprises a speaker body and a speaker bracket as claimed in claim 1, wherein the speaker body comprises a bracket ring (1) fixedly connected to a mounting plate (28), a slot (2) is provided at the inner upper end of the bracket ring (1), a support wall (3) is provided at the inner bottom end of the bracket ring (1), spring pieces (4) are provided inside the slot (2) and the support wall (3), a U cup (5) is fixedly connected to the middle part of the spring piece (4) at the top, a ring-shaped T iron (6) is fixedly connected to the outer top of the U cup (5), a magnetic circuit component for sound signal conversion is provided at the bottom end of the ring-shaped T iron (6) and the inside of the U cup (5), a vibration plate (9) is slidably connected to the upper and lower ends of the inner part of the bracket ring (1), and a ring-shaped voice coil (10) is fixedly connected to the side of the vibration plate (9) close to the U cup (5).

7. The dual voice coil loudspeaker according to claim 6, characterized in that: The magnetic circuit assembly comprises a first magnetic circuit component (7), the top end of the first magnetic circuit component (7) is fixedly connected to the top end of the annular T iron (6), the bottom end of the first magnetic circuit component (7) is fixedly connected to an annular washer (8), and the inner bottom end of the U cup (5) is fixedly connected to a second magnetic circuit component (11).

8. The dual voice coil loudspeaker according to claim 7, characterized in that: The annular voice coil (10) at the top is sleeved on the outside of the second magnetic circuit component (11), and the U cup (5) is sleeved on the outside of the annular voice coil (10).

9. The dual voice coil loudspeaker according to claim 7, characterized in that: The annular washer (8) is sleeved on the outside of the annular voice coil (10) at the bottom end, the bottom end of the annular washer (8) is fixedly connected to the top end of the spring (4) at the bottom end, and the outside of the bracket ring (1) is fixedly connected with a heat dissipation fin (12).

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