Loudspeaker with dual spider support structure

Abstract

The present disclosure provides a loudspeaker with double-suspension support structure, comprising a frame, a magnetic circuit system and a vibration system, the magnetic circuit system comprises a U-shaped cup and a magnetic gap, a through hole is formed in the bottom of the U-shaped cup; the vibration system comprises a voice coil extending into the magnetic gap; further comprising a support system, the support system comprises: a first suspension connected between the voice coil and the frame; a connecting piece arranged in the through hole, the upper end of the connecting piece is connected to the voice coil, and the lower end of the connecting piece extends below the magnetic circuit system; a bracket arranged around the U-shaped cup, the lower end of the bracket extends below the bottom surface of the U-shaped cup; a second suspension located below the magnetic circuit system and connected between the connecting piece and the bracket; wherein the second suspension and the first suspension jointly support the voice coil, and provide axial compliance for the voice coil and limit the lateral polarization of the voice coil. The present disclosure successfully realizes the double-suspension support structure on the U-shaped cup structure, completely suppresses the lateral polarization of the voice coil, and significantly reduces the nonlinear distortion.

Description

Technical Field

[0001] This disclosure belongs to the field of acoustic technology, specifically relating to a loudspeaker with a double spring wave support structure. Background Technology

[0002] A moving-coil loudspeaker typically includes a frame, magnetic circuit system, resonant system, and a spider (centering support). The magnetic circuit system generates the magnetic field; the resonant system includes the voice coil and diaphragm; the spider connects the voice coil and the frame, providing axial compliance to the voice coil and limiting its radial lateral displacement.

[0003] For loudspeakers employing a U-cup (i.e., U-iron) internal magnetic circuit structure, the magnetic gap is located inside the U-cup, and the lower middle end of the voice coil is enclosed within the magnetic gap by the U-cup. Although loudspeakers using a double-spider structure exist in the prior art, this type of double-spider structure is typically suitable for magnetic circuit structures where the bottom of the voice coil can be exposed (such as external magnetic circuit structures). Due to the U-cup's ability to seal the magnetic gap, existing double-spider structures cannot be directly applied to loudspeakers with internal magnetic circuit structures. This results in the spider in U-cup structure loudspeakers only being able to connect to the upper middle end of the voice coil, leading to the following technical problems: First, since the spider only constrains the upper middle part of the voice coil, when the speaker is operating with large amplitude and high dynamic range, the voice coil is very prone to lateral polarization (i.e., offset), which causes the voice coil to directly rub against the inner wall of the magnetic circuit system (rubbing), producing serious mechanical noise and significantly shortening the life of the speaker.

[0004] Secondly, because the bottom of the voice coil is suspended and has no physical positioning point, it is easy for the voice coil to bend and deform, which in turn causes complex vibration modes, resulting in uneven force and serious nonlinear distortion. This makes the sound weak and the low-frequency control poor, which cannot meet the requirements of high-fidelity playback. Summary of the Invention

[0005] The main technical problem addressed by this disclosure is to provide a loudspeaker with a double spring wave support structure.

[0006] This disclosure discloses a loudspeaker with a dual-spider support structure, including a frame, a magnetic circuit system, and a vibration system. The magnetic circuit system has a magnetic gap, and the vibration system includes a voice coil extending into the magnetic gap, and also includes a support system. The magnetic circuit system includes a U-cup, with a through hole at the bottom of the U-cup communicating with the magnetic gap. The support system includes: a first spider connected between the voice coil and the frame, with its connection point to the voice coil located above the magnetic circuit system; a connector inserted into the through hole, with its upper end connected to the bottom of the voice coil and its lower end extending below the magnetic circuit system; a bracket surrounding the U-cup, with its lower end extending downwards below the bottom surface of the U-cup; and a second spider located below the magnetic circuit system, connected between the connector and the bracket. The second spider and the first spider together support the voice coil, providing axial compliance and limiting its lateral polarization.

[0007] In some alternative embodiments, the support is a ring-shaped structure surrounding the U-cup and is coaxially arranged with the U-cup.

[0008] In some alternative implementations, the upper end of the bracket is connected to the outside of the U-cup, and / or to the bottom of the basin stand.

[0009] In some alternative implementations, the support is made of a thermally conductive material.

[0010] In some alternative embodiments, the through holes are multiple and evenly distributed around the axis of the voice coil; the connector comprises multiple lightweight thin rods, each passing through one of the through holes.

[0011] In some alternative embodiments, a sealing cap is also included, disposed at the bottom of the basin stand, the sealing cap forming a sealed cavity with the basin stand, the sealed cavity accommodating the magnetic circuit system, the support and the second spring wave.

[0012] In some optional embodiments, the magnetic circuit system further includes a magnetic component disposed within the U-cup, the magnetic component comprising a lower pad, a main magnet, an upper pad, a secondary magnet, and a washer sequentially stacked at the bottom of the U-cup, the magnetic component forming the magnetic gap with the inner wall of the U-cup.

[0013] In some alternative embodiments, the bottom of the U-cup has an upwardly raised boss, the magnetic component is disposed on the boss, and a gap is formed between the boss and the inner wall of the U-cup, which is part of the magnetic gap.

[0014] In some alternative embodiments, the vibration system further includes a conical diaphragm and a dust cap disposed on the diaphragm, the voice coil being connected to the central region of the diaphragm.

[0015] In some alternative embodiments, both the first and second springs are annular centering supports with wavy pleated structures.

[0016] To address the problem of existing loudspeakers using a U-cup internal magnetic circuit structure where the spider can only connect to the upper middle part of the voice coil, this disclosure proposes a loudspeaker with a double spider support structure. By adopting the above technical solution, this disclosure achieves the following technical effects: First, it overcomes the closed limitation of the magnetic circuit structure inside the U-cup, and achieves reliable physical support for the bottom of the voice coil.

[0017] By creating a through-hole at the bottom of the U-cup to connect the magnetic gap, and using a connector passing through this through-hole as a bridge, the concept of connecting the second spider to the bottom of the voice coil was realized, successfully achieving a double spider support structure on the U-cup structure. This structure breaks through the technical prejudice and structural barrier of traditional U-cup structures where the magnetic gap is closed and surrounded, preventing the bottom of the voice coil from being exposed and thus making it impossible to install a bottom spider.

[0018] Secondly, it completely suppresses the lateral polarization of the voice coil, effectively eliminates the rubbing phenomenon, and significantly improves reliability.

[0019] The first and second spiders respectively create a double-end clamping constraint on the upper and lower ends and the bottom of the voice coil, transforming the traditional cantilever (single-end fixed) support into a two-end fixed support. This structure restricts the free swing of the voice coil bottom during high-amplitude, high-dynamic-range operation of the loudspeaker, fundamentally eliminating the potential for mechanical friction (ring rubbing) between the voice coil and the inner wall of the U-cup due to lateral polarization. This avoids abnormal noise and mechanical wear, significantly extending the loudspeaker's lifespan.

[0020] Third, it ensures that the voice coil is always in the region where the magnetic field is most uniform at the center of the gap, which significantly reduces nonlinear distortion.

[0021] Because the bottom of the voice coil receives a strong elastic restoring force through the connector and the second spring, the voice coil can always be pulled back to its center position during large-amplitude vibrations, effectively suppressing the bending deformation of the bottom of the voice coil and the complex vibration modes it causes. This stable axial movement ensures that the voice coil remains concentric with the center of the magnetic gap at any amplitude, with uniform force, thus avoiding drastic fluctuations in the BL value (force factor) and severe nonlinear distortion caused by uneven force. This solves the problems of weak sound and poor low-frequency control in traditional structures, achieving low-distortion, high-fidelity sound reproduction, especially improving the low-frequency depth and resolution under large dynamic range. Attached Figure Description

[0022] The accompanying drawings used in the following description of the embodiments and prior art will be briefly introduced. Obviously, the drawings described below are only some embodiments of this disclosure. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0023] Figure 1 This is a cross-sectional view of a loudspeaker with a double spring wave support structure provided in an embodiment of this disclosure. Detailed Implementation

[0024] To enable those skilled in the art to better understand the present disclosure, the technical solutions of the present disclosure will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present disclosure, and not all embodiments. Based on the embodiments of the present disclosure, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present disclosure.

[0025] The terms "first," "second," "third," etc., in this disclosure, claims, and accompanying drawings are used to distinguish different objects, not to describe a specific order. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or apparatus that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to such processes, methods, products, or apparatus.

[0026] The following detailed descriptions will be provided through specific embodiments.

[0027] refer to Figure 1 This disclosure presents a loudspeaker with a double-spike-supported structure.

[0028] like Figure 1As shown, the loudspeaker includes a frame 10, a magnetic circuit system 20, a vibration system 30, and a support system 40. The frame 10 serves as the basic load-bearing structure, and both the magnetic circuit system 20 and the vibration system 30 are mounted on the frame 10. The magnetic circuit system 20 has a magnetic gap 21 and includes a U-cup 22. The bottom of the U-cup 22 has a through hole 221 communicating with the magnetic gap 21. The vibration system 30 includes a voice coil 31, the lower end of which extends into the magnetic gap 21. The support system 40 includes a first spider 41, a connector 42, a bracket 43, and a second spider 44. The first spider 41 connects the voice coil 31 and the frame 10, and the connection point between the first spider 41 and the voice coil 31 is located above the magnetic circuit system 20. The connector 42 passes through the through hole 221 at the bottom of the U-cup 22. The upper end of the connector 42 passes through the through hole 221 into the magnetic gap 21 and connects to the bottom of the voice coil 31; the lower end of the connector 42 extends below the magnetic circuit system 20. The bracket 43 surrounds the U-cup 22, and the lower end of the bracket 43 extends downward to below the bottom surface of the U-cup 22. The second spring 44 is located below the magnetic circuit system 20 and connects the connector 42 and the bracket 43. The second spring 44 and the first spring 41 together support the voice coil 31, providing axial compliance to the voice coil 31 and limiting its lateral polarization.

[0029] This loudspeaker overcomes the technical obstacle of using bottom-mounted spiders in the closed magnetic circuit structure of the U-cup 22 by employing the upper and lower cooperation of the first spider 41 and the second spider 44, and in particular by using the connector 42 passing through the bottom through hole 221 of the U-cup 22 as a bridge to bring the bottom of the voice coil 31, which was originally enclosed inside the magnetic gap 21 by the U-cup 22, out to the bottom of the magnetic circuit system 20. This double-ended "clamping" support structure greatly improves the mechanical stability of the voice coil 31 under large amplitude, effectively preventing the voice coil 31 from rubbing and mechanical noise caused by lateral polarization. At the same time, the bottom elastic restoring force provided by the second spider 44 ensures that the voice coil 31 always stays in the central magnetic field area of ​​the magnetic gap 21 during violent reciprocating motion, ensuring the stability of the driving force (BL value), thereby significantly reducing nonlinear distortion and making the mid-low frequency sound more solid and pure. This greatly extends the service life of the loudspeaker while meeting the requirements of high-fidelity sound reproduction.

[0030] The following section will further introduce the various parts of the speaker and its working principle.

[0031] 1. Pot stand 10 The frame 10, as the basic load-bearing component, can generally be in the form of a ring frame. The frame 10 can be equipped with reinforcing ribs to enhance structural rigidity; the frame 10 can also be made of lightweight materials such as aluminum alloy or magnesium alloy to achieve weight reduction; this helps to suppress mechanical vibration and resonance distortion, and improve transient response speed. In portable speakers, the frame 10 can also be made of high-strength engineering plastics to achieve weight reduction and molding flexibility.

[0032] II. Magnetic Circuit System 20 The magnetic circuit system 20 includes a U-cup 22 and magnetic components disposed within the U-cup 22. The magnetic components may include a lower pad 24, a main magnet 25, an upper pad 26, a secondary magnet 27, and a washer 28, which are sequentially stacked at the bottom of the U-cup 22.

[0033] Among them, the main magnet 25 and the auxiliary magnet 27 are arranged in a superimposed manner (the main magnet 25 is below and the auxiliary magnet 27 is above). This superimposed magnetic flux effect can improve the magnetic field concentration in the magnetic gap 21 region. Compared with the traditional single thick magnet scheme, it not only reduces the vertical height occupied by the magnetic circuit, but also makes the magnetic field lines more evenly distributed.

[0034] The lower shim 24 and the upper shim 26 can be made of high magnetic permeability materials such as low carbon steel, and have the dual functions of mechanical positioning and magnetic circuit optimization. They can accurately adjust the height of the magnetic gap 21, guide the magnetic flux path and reduce stray magnetic leakage.

[0035] Waste 28, as a magnetic focusing element, is located in the upper magnetic gap region to specifically gather the diverging magnetic lines of force and enhance the magnetic flux density in the working area of ​​the voice coil 31 in the magnetic gap 21.

[0036] The magnetic component is integrated as a whole, with a magnetic gap 21 formed between its outer surface and the inner wall of the U-cup 22. The magnetic gap 21 is completely located inside the U-cup 22. This structure has good sealing properties, which can effectively reduce stray magnetic leakage and improve magnetic energy utilization.

[0037] The U-cup 22 can typically be made of low-carbon steel or electrical pure iron with excellent magnetic permeability. The bottom of the U-cup 22 may have an upward-raised boss 222. The boss 222 can provide precise axial and radial positioning for the magnetic components, ensuring high coaxiality of the assembly and avoiding uneven magnetic gaps caused by assembly errors. In addition, the boss 222 structure shortens the magnetic circuit path, reduces magnetic resistance, and effectively improves magnetic circuit efficiency. The space formed on the outer periphery of the boss 222 also ensures that the through hole 221 at the bottom of the U-cup 22 can be opened without interfering with the magnetic components, providing smooth passage space for the connector 42.

[0038] A gap is formed between the protrusion 222 at the bottom of the U-cup 22 and the inner wall of the U-cup 22. This gap, as part of the magnetic gap 21, extends the depth of the magnetic gap 21. This deep magnetic gap design can enhance the magnetic field damping effect, which is beneficial to suppressing the nonlinear vibration of the voice coil and further improving the low-frequency performance and control of the voice coil under large dynamic conditions.

[0039] The entire magnetic circuit system 20 forms a dual magnetic circuit structure, which significantly increases the magnetic flux density between the magnetic gaps and enhances the driving torque (BL value) of the voice coil. Compared with the traditional single magnetic circuit, the sensitivity is significantly improved, and it also has a stronger power carrying capacity, which can easily handle large dynamic music signals.

[0040] The entire magnetic circuit system 20 employs a dual-magnet stacked structure. Because the magnetic field lines of the two magnets overlap at the magnetic gap 21, the magnetic flux density between the gaps is significantly increased, enhancing the driving torque (BL value) of the voice coil 31. Compared to the traditional single-magnet structure, this stacked layout achieves a stronger magnetic flux within the same volume, resulting in a significant improvement in sensitivity. Simultaneously, the dual-magnet combination also possesses stronger power handling capabilities, easily handling large dynamic range music signals and effectively improving electroacoustic conversion efficiency.

[0041] III. Vibration System 30 In addition to the voice coil 31, the vibration system 30 may also include a conical drum paper 32 and a dust cap 33 disposed on the drum paper 32.

[0042] The upper end of the voice coil 31 is connected to the central area of ​​the lower surface of the diaphragm 32. The voice coil 31 may include a cylindrical frame and a coil wound on the frame. The cylindrical frame may be made of a high-temperature resistant insulating material (such as polyimide, aluminum foil, etc.).

[0043] The outer edge of the diaphragm 32 is connected to the frame 10. In order to expand the frequency response and resolution, the diaphragm 32 can be made of high modulus and low internal resistance diaphragm composite material. Optimizing the voice coil winding process and the adhesive coupling structure of the diaphragm can significantly improve the high frequency response extension, reduce the distortion caused by split vibration, and enhance the resolution and layering of the sound.

[0044] The edge of the dust cap 33 can be seamlessly connected to the inner edge of the drum paper 32, effectively preventing external dust from entering the magnetic gap 21 through the connection gap between the drum paper 32 and the voice coil 31.

[0045] IV. Support System 40 The support system 40 is a key structure for constraining the voice coil 31, including a first spring 41, a connector 42, a bracket 43, and a second spring 44.

[0046] Both the first wave 41 and the second wave 44 can be annular centering supports, each with a wave-shaped pleated structure to provide axial compliance and limit lateral displacement. The first wave 41 or the second wave 44 can be designed symmetrically or asymmetrically to enhance resistance to deformation.

[0047] The bracket 43 can be a ring-shaped structure surrounding the U-cup 22, coaxially positioned with the U-cup 22 to ensure uniform force distribution in the circumferential direction. The upper end of the bracket 43 can be fixedly connected to the outside of the U-cup 22, or to the bottom of the frame 10, or both, through threads, snap-fit, or adhesive, forming a rigid connection. The lower end of the bracket 43 extends downward to below the bottom surface of the U-cup 22. Multiple perforations can also be provided circumferentially on the bracket 43 to reduce weight. The bracket 43 can also be made of thermally conductive material and connected to the U-cup 22 to assist in heat dissipation. This thermal design forms an efficient heat dissipation path. The heat generated by the voice coil 31 when driving with high power is conducted to the U-cup 22, and then quickly conducted to the outside air by the bracket 43, effectively reducing the operating temperature of the magnet, preventing performance degradation caused by magnet demagnetization due to high temperature, and significantly improving the long-term reliability of the speaker. The bracket 43 can be made of SPCC stamped steel plate, high-strength aluminum alloy or glass fiber reinforced engineering plastic (such as PA+GF, PBT); high-power products prefer metal materials to ensure rigidity and heat dissipation, while portable products prefer engineering plastics.

[0048] The connector 42 may include multiple lightweight thin rods passing through multiple through holes 221 evenly distributed at the bottom of the U-cup 22. The thin rods may be thermally conductive metal rods, with their upper ends bonded or welded to the bottom of the voice coil 31 and their lower ends fixedly connected to the inner edge of the second spring wave 44. Specifically, the upper end of the connector 42 may be connected to the bottom of the cylindrical frame of the voice coil 31. A certain gap may be left between the thin rods and the inner wall of the through holes 221 to prevent friction and provide a guiding function.

[0049] The outer edge of the second spider 44 is fixedly connected to the bracket 43, and its inner edge is rigidly connected to the connector 42 (which extends to the bottom of the voice coil). As an elastic support element, the second spider 44, together with the first spider 41, forms a "clamping" constraint on the upper and lower ends of the voice coil 31. This double-spider structure effectively solves the problem of the voice coil bottom being suspended without a physical positioning point, avoiding lateral polarization, bending deformation, and complex vibration modes of the voice coil under large amplitude. It forcibly constrains the voice coil to move axially, eliminating radial sway, thereby significantly reducing total harmonic distortion (THD) and improving sound purity.

[0050] V. Sealing cap 50 In some optional embodiments, the loudspeaker of this disclosure may further include a sealing cover 50 disposed below the frame 10, forming a sealed cavity 51 between the cover and the frame 10, which completely accommodates the magnetic circuit system 20, the support 43, and the second spring 44. Optionally, the inner side of the sealing cover 50 or the sealed cavity may be filled with a porous sound-absorbing damping material. The sealing cover 50 may be made of high-strength engineering plastics (such as ABS, PC+ABS alloy), aluminum alloy stampings, or rubber composite structures, taking into account structural rigidity, lightweight, and sealing adaptability.

[0051] During operation, the sealed cavity 51 generates a stable "air spring" effect, participating in the elastic recovery of the vibration system, effectively eliminating standing wave interference within the enclosure, and improving the low-frequency depth, quantity, and transient response. Stable cavity air pressure ensures consistent performance between product batches while preventing abnormal noises caused by turbulent airflow, thus improving the purity of the sound. Simultaneously, the sealed cover 50 physically isolates external dust and moisture, protecting internal precision components such as magnets and voice coils from mechanical impacts and environmental corrosion, extending their service life in outdoor and humid environments.

[0052] VI. Working Principle When the loudspeaker is working, an external audio current is input to the voice coil 31. The voice coil 31 is driven by the Lorentz force in the magnetic gap 21, which drives the diaphragm 32 and the dust cap 33 to reciprocate, thereby radiating sound waves. Because the upper end of the voice coil 31 is constrained by the first spring 41, and the lower end is constrained by the second spring 44 through the connector 42, the voice coil 31 can only vibrate strictly in the vertical direction. Even under the working conditions of maximum dynamic range and maximum stroke, the voice coil 31 always remains in the central magnetic field region of the magnetic gap 21, ensuring uniform force and stable BL value, effectively preventing friction between the voice coil and the inner wall of the magnetic circuit system, and eliminating mechanical noise.

[0053] VII. Technical Effects The embodiments disclosed herein achieve the following significant technical effects through the above structural design: The voice coil is guided at both ends, significantly improving mechanical stability: By using a connector 42 passing through the bottom through-hole 221 of the U-cup 22 as a bridge, the bottom of the voice coil, which was originally enclosed inside the magnetic gap 21 by the U-cup 22, is brought out, successfully overcoming the technical obstacle that the bottom spring wave cannot be used in the closed magnetic circuit of the U-cup. Through the upper and lower "clamping" support of the first spring wave 41 and the second spring wave 44, the lateral polarization and bending deformation of the voice coil under large amplitude are completely suppressed, preventing coil rubbing and mechanical noise, and significantly extending the service life.

[0054] Significantly reduces nonlinear distortion: The bottom elastic restoring force provided by the second spring wave 44 ensures that the voice coil 31 is in the central magnetic field region of the magnetic gap 21 under any amplitude, and the force is uniform, thereby avoiding drastic fluctuations in driving force, making the mid-low frequency sound more solid and pure, and solving the problems of weak sound and poor low-frequency control in traditional single spring wave structures.

[0055] Highly efficient magnetic circuit optimization and heat dissipation design: The dual magnet (main magnet 25 and auxiliary magnet 27) superimposed structure, combined with dual pads (lower pad 24 and upper pad 26) and washer 28, significantly improves magnetic flux density and driving force (BL value), thereby improving electroacoustic conversion efficiency; the U-cup bottom boss 222 and deep magnetic gap structure enhance magnetic field damping; the bracket 43 made of thermally conductive material and the U-cup 22 form an efficient heat dissipation channel to prevent high-temperature demagnetization and ensure reliability during long-term high-power operation.

[0056] Excellent low-frequency response and protection performance: The sealed cavity 51 formed by the sealing cap 50 and the frame 10 generates an "air spring" effect, effectively eliminating standing waves and significantly improving the low-frequency depth, quantity, and transient response. Simultaneously, the cooperation between the sealing cap 50 and the dust cap 33 and other structures achieves dust and water resistance, making it particularly suitable for outdoor and complex / harsh environments. Furthermore, the stable air pressure within the sealed cavity not only ensures batch-to-batch performance consistency but also avoids abnormal noises caused by airflow turbulence, improving the purity of the sound.

[0057] Balancing high rigidity and lightweight: Optionally, by adding reinforcing ribs to the frame 10 and hollowing out holes on the bracket 43, the overall structural rigidity is improved while the system weight is effectively reduced, further enhancing the speaker's transient response and overall quality.

[0058] The technical solutions of this disclosure have been described in detail above through specific embodiments. In the above embodiments, the descriptions of each embodiment have their own emphasis; for parts not described in detail in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0059] It should be understood that the above embodiments are only used to illustrate the technical solutions of this disclosure, and are not intended to limit them. Those skilled in the art can modify the technical solutions described in the above embodiments, or make equivalent substitutions for some of the technical features; however, these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and protection scope of the technical solutions of the embodiments of this disclosure.

Claims

1. A loudspeaker with a double spring-support structure, comprising a frame, a magnetic circuit system, and a vibration system, wherein the magnetic circuit system has a magnetic gap, and the vibration system includes a voice coil extending into the magnetic gap, characterized in that, It also includes the support system; The magnetic circuit system includes a U-cup, and the bottom of the U-cup has a through hole that communicates with the magnetic gap; The support system includes: The first spring wave is connected between the voice coil and the frame, and its connection point with the voice coil is located above the magnetic circuit system. A connector is inserted into the through hole, with its upper end connected to the bottom of the voice coil and its lower end extending below the magnetic circuit system. A support is provided around the U-cup, with the lower end of the support extending downward to below the bottom surface of the U-cup; The second wave is located below the magnetic circuit system and connects between the connector and the bracket; The second spider and the first spider together support the voice coil, providing axial compliance to the voice coil and limiting its lateral polarization.

2. The loudspeaker with a double spring wave support structure according to claim 1, characterized in that, The support is a ring-shaped structure surrounding the U-cup and is coaxially arranged with the U-cup.

3. The loudspeaker with a double spring wave support structure according to claim 1, characterized in that, The upper end of the bracket is connected to the outside of the U-cup, and / or to the bottom of the basin stand.

4. The loudspeaker with a double spring wave support structure according to claim 1, characterized in that, The support is made of thermally conductive material.

5. The loudspeaker with a double spring wave support structure according to claim 1, characterized in that, The through holes are multiple and evenly distributed around the axis of the voice coil; the connector includes multiple lightweight thin rods, each passing through one of the through holes.

6. The loudspeaker with a double spring wave support structure according to claim 1, characterized in that, It also includes a sealing cap disposed at the bottom of the basin stand, the sealing cap forming a sealing cavity with the basin stand, the sealing cavity accommodating the magnetic circuit system, the bracket and the second spring wave.

7. The loudspeaker with a double spring wave support structure according to claim 1, characterized in that, The magnetic circuit system further includes a magnetic component disposed within the U-cup. The magnetic component includes a lower pad, a main magnet, an upper pad, a secondary magnet, and a washer, which are stacked sequentially at the bottom of the U-cup. The magnetic component forms the magnetic gap with the inner wall of the U-cup.

8. The loudspeaker with a double spring wave support structure according to claim 7, characterized in that, The bottom of the U-cup has an upwardly raised protrusion, and the magnetic component is disposed on the protrusion. A gap is formed between the protrusion and the inner wall of the U-cup, which is part of the magnetic gap.

9. The loudspeaker with a double spring wave support structure according to claim 1, characterized in that, The vibration system also includes a conical drum paper and a dust cap disposed on the drum paper, with the voice coil connected to the central area of ​​the drum paper.

10. The loudspeaker with a double spring wave support structure according to claim 1, characterized in that, Both the first and second elastic waves are annular centering supports, each with a wave-shaped pleated structure.

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