Bidirectional loudspeaker group, sound box and audio equipment

Abstract

The utility model belongs to the technical field of loudspeakers, and discloses a bidirectional loudspeaker group, a sound box and audio equipment, and the bidirectional loudspeaker group comprises a common magnetic circuit module, a first loudspeaker and a second loudspeaker. The common magnetic circuit module comprises a magnetic conduction bowl, a first magnetic gap and a second magnetic gap are formed in the inner side and the outer side of the magnetic conduction bowl in the first direction respectively, a first through hole communicated with the first magnetic gap and the second magnetic gap is formed in the magnetic conduction bowl, and the first loudspeaker and the second loudspeaker are arranged on the two sides of the common magnetic circuit module in the second direction respectively. The first loudspeaker comprises an annular first voice coil, the second loudspeaker comprises an annular second voice coil, the first voice coil and the first magnetic gap are correspondingly arranged, the first voice coil can vibrate in the first magnetic gap in the second direction, the second voice coil and the second magnetic gap are correspondingly arranged, and the second voice coil can vibrate in the second magnetic gap in the second direction. Through the above arrangement, the bidirectional loudspeaker group provided by the utility model can achieve the balanced damping, sound quality improvement and heat dissipation requirements.

Description

Technical Field

[0001] This utility model relates to the field of loudspeaker technology, and in particular to a two-way loudspeaker assembly, a speaker enclosure, and an audio device. Background Technology

[0002] When a speaker is working normally, it will generate mechanical vibrations. These vibrations will not only interfere with its own sound quality output, but will also be transmitted to other components through the installation structure, causing abnormal vibrations in the audio equipment and thus affecting the sound quality performance.

[0003] Currently, most speakers in audio equipment are mounted on one side. During operation, the speaker generates a counterforce, causing other internal components to vibrate. This vibration not only degrades sound quality but can also negatively impact the stability and lifespan of the equipment. Furthermore, existing audio modules prioritize compactness. While this compact design helps reduce device size, it also limits heat dissipation space, leading to heat buildup and affecting speaker performance and lifespan. On the other hand, achieving good vibration damping often requires additional structures or materials in audio modules, further reducing installation space and limiting the speaker's voice coil stroke, thus affecting low-frequency performance.

[0004] Therefore, there is an urgent need for a speaker assembly, speaker enclosure, and audio equipment that can balance the needs of vibration reduction, sound quality improvement, and heat dissipation. Utility Model Content

[0005] The purpose of this invention is to provide a two-way speaker assembly that can balance the needs of vibration reduction, sound quality improvement and heat dissipation.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] A two-way loudspeaker assembly, comprising:

[0008] A common magnetic circuit module includes a magnetic cup, wherein a first magnetic gap and a second magnetic gap are respectively provided on the inner and outer sides of the magnetic cup along a first direction, and a first through hole is provided on the magnetic cup to connect the first magnetic gap and the second magnetic gap;

[0009] A first loudspeaker and a second loudspeaker are respectively disposed on both sides of the common magnetic circuit module along the second direction. The first loudspeaker includes a first annular voice coil, and the second loudspeaker includes a second annular voice coil. The first voice coil and the second voice coil are coaxially arranged, and the first voice coil is correspondingly arranged with the first magnetic gap. The first voice coil can vibrate within the first magnetic gap along the second direction, and the second voice coil is correspondingly arranged with the second magnetic gap. The second voice coil can vibrate within the second magnetic gap along the second direction.

[0010] Optionally, the magnetic bowl is provided with a non-magnetic part.

[0011] Optionally, the magnetic cup includes a magnetic plate, a connecting cylinder, and a clamping plate. The connecting cylinder is disposed through the connecting cylinder, the magnetic plate is sealed at one end of the connecting cylinder, the clamping plate is disposed at the other end of the connecting cylinder, and the clamping plate extends along the circumference of the connecting cylinder toward a side away from the center of the connecting cylinder. The connecting cylinder is configured as the non-magnetic part.

[0012] Optionally, the magnetic plate and / or the clamping plate are provided with the first through hole, and there are multiple first through holes, which are spaced apart.

[0013] Optionally, the magnetic cup is configured as a one-piece structure or a split structure.

[0014] Optionally, the first loudspeaker further includes a first frame and a first diaphragm assembly. The first frame has a first through hole extending along the second direction. The outer periphery of the first diaphragm assembly is connected to the first frame and covers one end of the first through hole. One end of the first voice coil is connected to the first diaphragm assembly, and the other end is correspondingly disposed with the first magnetic gap.

[0015] The second loudspeaker also includes a second frame and a second diaphragm assembly. The second frame has a second through hole through it along the second direction. The outer periphery of the second diaphragm assembly is connected to the second frame and covers one end of the second through hole. One end of the second voice coil is connected to the second diaphragm assembly, and the other end is correspondingly set with the second magnetic gap.

[0016] The first washbasin stand is connected to the second washbasin stand; or, the first washbasin stand and the second washbasin stand are integrally formed.

[0017] Optionally, the first diaphragm assembly further includes a first diaphragm plate and a first dust cover. The first diaphragm plate is connected to the first frame and has a first mounting hole. One end of the first voice coil is placed in the first mounting hole. The first dust cover is connected to one end of the first voice coil and covers the first mounting hole.

[0018] The second diaphragm assembly further includes a second diaphragm plate and a second dust cover. The second diaphragm plate is connected to the second frame and has a second mounting hole. One end of the second voice coil is placed in the second mounting hole. The second dust cover is connected to one end of the second voice coil and covers the second mounting hole.

[0019] Optionally, the first loudspeaker further includes a first spar, one end of which is connected to the first diaphragm and the other end of which is connected to the first frame; the second loudspeaker further includes a second spar, one end of which is connected to the second diaphragm and the other end of which is connected to the second frame.

[0020] Optionally, the first loudspeaker further includes a first support frame, which is disposed between the first voice coil and the first frame. One end of the first support frame is connected to the first diaphragm, and the other end is connected to the first frame through the first support plate.

[0021] The second loudspeaker also includes a second support frame, which is disposed between the second voice coil and the second frame. One end of the second support frame is connected to the second diaphragm, and the other end is connected to the second frame via the second support plate.

[0022] Optionally, the bidirectional speaker assembly further includes a lead wire, and the first branch and / or the second branch are provided with corrugated pleats. The corrugated pleats extend along the first direction and form a plurality of continuous peaks and troughs. The lead wire is arranged along the contour of the corrugated pleats and abuts against the surface of the corrugated pleats.

[0023] Optionally, the first diaphragm assembly further includes a first upper folding ring and a first lower folding ring, the first lower folding ring abutting against the first frame, and the first upper folding ring and the first lower folding ring sandwiched between the two sides of the first vibrating plate;

[0024] The second diaphragm assembly further includes a second upper folding ring and a second lower folding ring, the second lower folding ring abutting against the second frame, and the second upper folding ring and the second lower folding ring sandwiched on both sides of the second vibrating plate.

[0025] Optionally, the first lower fold ring and / or the second lower fold ring are provided with a plurality of hollowed-out portions at intervals along their circumference.

[0026] Optionally, the common magnetic circuit module further includes a first magnet and a second magnet. The first magnet is disposed on the inner side of the magnetic cup and forms a first magnetic gap with the inner wall of the magnetic cup. The first voice coil surrounds the outer side of the first magnet. The second magnet is disposed on the outer side of the magnetic cup and forms a second magnetic gap with the outer wall of the magnetic cup. The second magnet surrounds the outer side of the second voice coil.

[0027] Optionally, the common magnetic circuit module further includes a first magnetic sheet and a second magnetic sheet, wherein the first magnetic sheet is disposed on the first magnet and the second magnetic sheet is disposed on the second magnet.

[0028] Optionally, the magnetic cup, the first magnet, and the first magnetic sheet are connected by an airflow channel, and the first speaker and the second speaker are interconnected through the airflow channel.

[0029] Optionally, the first magnet and / or the second magnet each include a plurality of spaced magnetic blocks, with magnetic gaps formed between the magnetic blocks, and the plurality of magnetic blocks forming a ring structure.

[0030] Optionally, along the second direction, the first basin stand and / or the second basin stand are provided with a plurality of interconnected stepped portions, the stepped portions having a third through hole for communicating with the outside.

[0031] Optionally, the first voice coil and / or the second voice coil are provided with a plurality of second through holes spaced apart along their circumference.

[0032] Another objective of this invention is to provide a speaker that can balance the needs of vibration reduction, sound quality improvement, and heat dissipation.

[0033] To achieve this objective, the present invention adopts the following technical solution:

[0034] A speaker enclosure includes a housing and a two-way speaker assembly as described above, the two-way speaker assembly being assembled within the housing.

[0035] Another objective of this invention is to provide an audio device that can balance the needs for vibration reduction, sound quality enhancement, and heat dissipation.

[0036] To achieve this objective, the present invention adopts the following technical solution:

[0037] An audio device comprising a two-way speaker assembly as described above.

[0038] The beneficial effects of this utility model are:

[0039] This invention provides a bidirectional loudspeaker assembly, a speaker enclosure, and an audio device. The bidirectional loudspeaker assembly includes a common magnet circuit module, a first loudspeaker, and a second loudspeaker. The common magnet circuit module includes a magnetic dome, with a first magnetic gap and a second magnetic gap respectively provided on the inner and outer sides of the magnetic dome along a first direction. The first loudspeaker and the second loudspeaker are respectively disposed on both sides of the common magnet circuit module along a second direction. The first loudspeaker includes a first annular voice coil, and the second loudspeaker includes a second annular voice coil. By the vibration of the first voice coil along the second direction within the corresponding first magnetic gap, and the vibration of the second voice coil along the second direction within the corresponding second magnetic gap, the opposing forces generated by the first loudspeaker and the second loudspeaker during operation can cancel each other out, thereby reducing vibration and avoiding sound quality interference and stability problems caused by vibration of other components inside the audio device. Moreover, the above layout structure does not require additional damping structures or materials, which helps to improve the compactness of the overall structure. Without increasing the installation space, the first through hole on the magnetic dome connecting the first magnetic gap and the second magnetic gap further improves the heat dissipation effect of the overall structure. Because the first and second voice coils are coaxially arranged and vibrate within their respective independent magnetic gaps, not only is the vibration space for the first and second speakers guaranteed, avoiding limitations on the voice coil stroke, but the low-frequency performance of the speakers can also be fully utilized, improving sound quality. The speaker enclosure includes a cabinet and a two-way speaker assembly, which is mounted within the cabinet. The audio device includes the two-way speaker assembly. Through the above arrangement, the two-way speaker assembly of this application can balance the requirements for vibration damping, sound quality improvement, and heat dissipation. Attached Figure Description

[0040] Figure 1 This is a first schematic diagram of the speaker assembly provided in this embodiment of the present utility model;

[0041] Figure 2 yes Figure 1 A magnified view of a section at point A in the middle;

[0042] Figure 3 This is a first exploded view of the speaker assembly provided in this embodiment of the present invention;

[0043] Figure 4 This is a schematic diagram of the magnetic bowl provided in an embodiment of the present invention;

[0044] Figure 5 This is a schematic diagram of the split structure of the magnetic cup provided in this embodiment of the utility model;

[0045] Figure 6 This is a schematic diagram of the first basin stand provided in an embodiment of the present utility model;

[0046] Figure 7 This is a schematic diagram of the magnetic field lines of a portion of the speaker assembly provided in this embodiment of the present invention;

[0047] Figure 8 This is a second schematic diagram of the speaker assembly provided in this embodiment of the present invention;

[0048] Figure 9 yes Figure 8 A magnified view of a section at point B in the middle;

[0049] Figure 10 This is a schematic diagram of the lead wire connected to the first support plate according to an embodiment of the present invention;

[0050] Figure 11 This is a second exploded view of the speaker assembly provided in this embodiment of the present invention;

[0051] Figure 12 This is a third schematic diagram of the speaker assembly provided in this embodiment of the present invention;

[0052] Figure 13 This is a third exploded view of the speaker assembly provided in this embodiment of the present invention;

[0053] Figure 14 This is a schematic diagram of the first lower folding ring provided in an embodiment of the present utility model;

[0054] Figure 15 This is a partial structural cross-sectional view of the speaker assembly provided in this embodiment of the utility model;

[0055] Figure 16 This is a schematic diagram of the first magnet provided in an embodiment of the present utility model;

[0056] Figure 17 This is a schematic diagram of the first voice coil provided in an embodiment of the present utility model;

[0057] Figure 18 This is a schematic diagram of the speaker provided in an embodiment of the present utility model;

[0058] Figure 19 This is a cross-sectional view of the speaker provided in an embodiment of this utility model;

[0059] Figure 20 This is an exploded view of the speaker provided in an embodiment of this utility model.

[0060] In the picture:

[0061] 1. Common magnet circuit module; 11. Magnetic cup; 111. First through hole; 112. Magnetic plate; 113. Connecting cylinder; 114. Clamping plate; 115. Airflow channel; 12. First magnetic gap; 13. Second magnetic gap; 14. First magnet; 141. Magnetic block; 142. Magnetic gap; 15. Second magnet; 16. First magnetic sheet; 17. Second magnetic sheet; 18. Third magnetic sheet; 191. First washer; 192. Second washer; 2. First loudspeaker; 21. First voice coil; 211. Second through hole; 22. First frame; 221. First through hole; 222. Stepped section; 223. Third through hole; 23. First diaphragm assembly; 231. First diaphragm; 232. First diaphragm; 2321, First mounting hole; 233, First dust cover; 234, First upper folding ring; 235, First lower folding ring; 2351, Hollowed-out section; 236, Third washer; 237, Fourth washer; 24, First support plate; 241, Corrugated pleated section; 25, First support frame; 3, Second loudspeaker; 31, Second voice coil; 32, Second frame; 321, Second through hole; 33, Second diaphragm assembly; 331, Second diaphragm; 332, Second diaphragm; 3321, Second mounting hole; 333, Second dust cover; 334, Second upper folding ring; 335, Second lower folding ring; 34, Second support plate; 35, Second support frame; 4, Lead wire; 100, Cabinet. Detailed Implementation

[0062] 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, and not the entire structure.

[0063] 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.

[0064] 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.

[0065] 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.

[0066] When a speaker is working normally, it will generate mechanical vibrations. These vibrations will not only interfere with its own sound quality output, but will also be transmitted to other components through the installation structure, causing abnormal vibrations in the audio equipment and thus affecting the sound quality performance.

[0067] Currently, most speakers in audio equipment are mounted on one side. During operation, the speaker generates a counterforce, causing other internal components to vibrate. This vibration not only degrades sound quality but can also negatively impact the stability and lifespan of the equipment. Furthermore, existing audio modules prioritize compactness. While this compact design helps reduce device size, it also limits heat dissipation space, leading to heat buildup and affecting speaker performance and lifespan. On the other hand, achieving good vibration damping often requires additional structures or materials in audio modules, further reducing installation space and limiting the speaker's voice coil stroke, thus affecting low-frequency performance.

[0068] Therefore, there is an urgent need for a speaker assembly, speaker enclosure, and audio equipment that can balance the needs of vibration reduction, sound quality improvement, and heat dissipation.

[0069] like Figures 1-17As shown, this embodiment provides a bidirectional loudspeaker assembly, which includes a common magnetic circuit module 1, a first loudspeaker 2, and a second loudspeaker 3. The common magnetic circuit module 1 includes a magnetic cup 11, and a first magnetic gap 12 and a second magnetic gap 13 are respectively provided on the inner and outer sides of the magnetic cup 11 along a first direction. A first through hole 111 is opened on the magnetic cup 11 to connect the first magnetic gap 12 and the second magnetic gap 13. The first loudspeaker 2 and the second loudspeaker 3 are respectively disposed on both sides of the common magnetic circuit module 1 along a second direction. The first loudspeaker 2 includes an annular first voice coil 21, and the second loudspeaker 3 includes an annular second voice coil 31. The first voice coil 21 and the second voice coil 31 are coaxially arranged, and the first voice coil 21 is correspondingly arranged with the first magnetic gap 12. The first voice coil 21 can vibrate within the first magnetic gap 12 along the second direction. The second voice coil 31 is correspondingly arranged with the second magnetic gap 13, and the second voice coil 31 can vibrate within the second magnetic gap 13 along the second direction.

[0070] In this embodiment, the common magnet circuit module 1 includes a magnetic cup 11. The magnetic cup 11 has a first magnetic gap 12 and a second magnetic gap 13 on its inner and outer sides along a first direction, respectively. A first speaker 2 and a second speaker 3 are respectively disposed on both sides of the common magnet circuit module 1 along a second direction. The first speaker 2 includes an annular first voice coil 21, and the second speaker 3 includes an annular second voice coil 31. By the vibration of the first voice coil 21 within the corresponding first magnetic gap 12 along the second direction, and the vibration of the second voice coil 31 within the corresponding second magnetic gap 13 along the second direction, the opposing forces generated by the first speaker 2 and the second speaker 3 during operation can cancel each other out, thereby reducing vibration and avoiding sound quality interference and stability problems caused by vibration in other components inside the audio equipment. Furthermore, the above layout structure does not require additional damping structures or materials, which is beneficial for improving the overall structural compactness. Without increasing the installation space, the first through hole 111 on the magnetic cup 11, connecting the first magnetic gap 12 and the second magnetic gap 13, further improves the overall heat dissipation effect. Because the first voice coil 21 and the second voice coil 31 are coaxially arranged and vibrate within their respective independent magnetic gaps, not only is the vibration space of the first speaker 2 and the second speaker 3 guaranteed, avoiding limitations on the voice coil stroke, but the low-frequency performance of the speakers can also be fully utilized, improving sound quality. Through the above arrangement, the bidirectional speaker assembly of this embodiment can balance the requirements of vibration damping, sound quality improvement, and heat dissipation.

[0071] The specific structure of the two-way loudspeaker assembly is explained below:

[0072] Specifically, such as Figure 1 As shown, the magnetic cup 11 has a non-magnetic part, which can effectively isolate the magnetic field, avoid mutual interference between magnetic circuits, and thus improve the sound quality performance of the two-way speaker group and avoid sound quality abnormalities caused by magnetic circuit interference.

[0073] More specifically, such as Figures 1-5 As shown, in this embodiment, the magnetic cup 11 includes a magnetic plate 112, a connecting cylinder 113, and a clamping plate 114. The connecting cylinder 113 is through-hole, providing installation space for accommodating other components of the bidirectional speaker assembly, thereby improving the overall structural compactness. The magnetic plate 112 covers one end of the connecting cylinder 113, and the clamping plate 114 is disposed at the other end of the connecting cylinder 113. The clamping plate 114 extends circumferentially away from the center of the connecting cylinder 113, allowing the magnetic plate 112 and the clamping plate 114 to fully exert their magnetic guiding function. The connecting cylinder 113 is configured as a non-magnetic part, which can effectively isolate the magnetic field and avoid magnetic circuit interference.

[0074] More specifically, in some embodiments, the connecting cylinder 113 includes multiple connecting rings, which are connected end to end in sequence to form a cylinder structure. This allows the operator to adjust the number of connecting rings according to actual needs, such as setting three, four, or five, thereby improving the structural flexibility and adjustability of the connecting cylinder 113 and enabling it to adapt to the assembly requirements of different sizes and shapes of speakers.

[0075] Furthermore, the connecting tube 113 can be made of insulating materials such as polyimide, polytetrafluoroethylene or polycarbonate, which can reduce the influence of inductance on the two-way speaker assembly. It can not only effectively isolate the magnetic field and avoid magnetic circuit interference, but also protect the relevant internal components from external influences, thereby improving the stability and reliability of the two-way speaker assembly.

[0076] Specifically, such as Figure 4 As shown, the magnetic plate 112 and / or the clamping plate 114 are provided with a first through hole 111. There are multiple first through holes 111, which are spaced apart. This can optimize the airflow path inside the bidirectional speaker group, making the airflow smoother, which is conducive to improving the stability and clarity of the sound quality and avoiding abnormal sound quality problems caused by airflow accumulation or air pressure changes.

[0077] Specifically, the magnetic cup 11 is configured as either a one-piece molded structure or a split structure, thus providing multiple options for the processing and manufacturing of the magnetic cup 11. Among them, the one-piece molded structure can improve the overall strength and stability of the magnetic cup 11 and reduce assembly errors, while the split structure facilitates independent processing and assembly, improving production efficiency. Those skilled in the art can choose according to actual design requirements, and no further limitations are imposed here.

[0078] Specifically, such as Figures 1-6As shown, the first loudspeaker 2 also includes a first frame 22 and a first diaphragm assembly 23. The first frame 22 has a first through hole 221 extending along the second direction. The outer periphery of the first diaphragm assembly 23 is connected to the first frame 22 and covers one end of the first through hole 221. The first frame 22 serves as a support structure, ensuring the stable installation and vibration of the first diaphragm assembly 23. One end of the first voice coil 21 is connected to the first diaphragm assembly 23, and the other end is correspondingly set with the first magnetic gap 12, which can efficiently transmit the vibration of the first voice coil 21 in the magnetic field to the first diaphragm assembly 23, ensuring a more stable and clear sound output. The second loudspeaker 3 also includes a second frame 32 and a second diaphragm assembly 33. The second frame 32 has a second through hole 321 extending along the second direction. The outer periphery of the second diaphragm assembly 33 is connected to the second frame 32 and covers one end of the second through hole 321. The second frame 32 can ensure the stable installation and vibration of the second diaphragm assembly 33. One end of the second voice coil 31 is connected to the second diaphragm assembly 33, and the other end is correspondingly positioned with the second magnetic gap 13. This allows the vibration of the second voice coil 31 in the magnetic field to be efficiently transmitted to the second diaphragm assembly 33, ensuring a more stable and clearer sound output. This configuration improves the connection strength between the first speaker 2 and the second speaker 3, ensuring that the first voice coil 21 and the second voice coil 31 can vibrate stably within their respective magnetic gaps. Furthermore, the connection between the first frame 22 and the second frame 32, or the fact that the first frame 22 and the second frame 32 are integrally formed, both enhance the overall stability of the bidirectional speaker assembly.

[0079] The first basin stand 22 and the second basin stand 32 can be made of materials such as steel, plastic or alloy, so that those skilled in the art can make flexible choices according to different design requirements and application scenarios. No specific material is limited here, as long as the above functions can be achieved.

[0080] Specifically, such as Figures 1-13As shown, the first diaphragm assembly 23 also includes a first diaphragm plate 232 and a first dust cover 233. The first diaphragm plate 232 is connected to the first frame 22 and has a first mounting hole 2321. One end of the first voice coil 21 is placed in the first mounting hole 2321. The first dust cover 233 is connected to one end of the first voice coil 21 and covers the first mounting hole 2321. The second diaphragm assembly 33 also includes a second diaphragm plate 332 and a second dust cover 333. The second diaphragm plate 332 is connected to the second frame 32 and has a second mounting hole 3321. One end of the second voice coil 31 is placed in the second mounting hole 3321. The second dust cover 333 is connected to one end of the second voice coil 31 and covers the second mounting hole 3321. By setting the first dust cover 233 and the second dust cover 333, the first voice coil 21 and the second voice coil 31 can be protected from dust and other impurities, ensuring the normal operation and service life of the voice coil. Meanwhile, by setting the first oscillating plate 232 and the second oscillating plate 332, stable vibration support can be provided for the voice coil, ensuring the stability and consistency of sound quality and avoiding the problem of sound quality degradation.

[0081] More specifically, the first diaphragm assembly 23 further includes a first diaphragm 231, which is connected to one end of the first voice coil 21 and disposed between the first voice coil 21 and the first dust cover 233; the second diaphragm assembly 33 further includes a second diaphragm 331, which is connected to one end of the second voice coil 31 and disposed between the second voice coil 31 and the second dust cover 333, so that the first diaphragm 231 and the second diaphragm 331 can be directly connected to their respective voice coils, thereby efficiently transmitting the vibration of the voice coil to the corresponding diaphragm, ensuring a more stable and clear sound output. At the same time, by placing the diaphragm between the corresponding voice coil and the dust cover, dust and other impurities can be effectively prevented from entering the voice coil, avoiding sound quality degradation or voice coil damage due to foreign object interference, thereby extending the speaker's lifespan and ensuring the stability and reliability of sound quality.

[0082] Specifically, such as Figures 1-11 As shown, the first loudspeaker 2 also includes a first support plate 24, one end of which is connected to the first diaphragm plate 232, and the other end is connected to the first frame 22. The second loudspeaker 3 also includes a second support plate 34, one end of which is connected to the second diaphragm plate 332, and the other end is connected to the second frame 32. By setting the first support plate 24 and the second support plate 34, additional support and connection can be provided for the first diaphragm plate 232 and the second diaphragm plate 332, improving the stability of the structure of the first diaphragm assembly 23 and the second diaphragm assembly 33. At the same time, the above settings help optimize vibration characteristics, reduce energy loss during vibration, thereby improving sound quality performance and avoiding problems such as abnormal sound quality.

[0083] More specifically, such as Figures 1-11As shown, in some embodiments, a first receiving groove is formed between the connecting cylinder 113 and the magnetic guide plate 112, a first magnet 14 is disposed in the first receiving groove, and a first washer 191 is sandwiched between the first magnet 14 and the magnetic guide plate 112; one end of the clamping plate 114 away from the connecting cylinder 113 extends along a second direction and forms a second receiving groove with the connecting cylinder 113, a second magnet 15 is disposed in the second receiving groove, and a second washer 192 is sandwiched between the second magnet 15 and the clamping plate 114. By setting the first receiving groove and the second receiving groove, a stable installation position is provided for the first magnet 14 and the second magnet 15, so that the first magnet 14 and the second magnet 15 will not be displaced or loosened during operation, ensuring the stability and consistency of the magnetic field. Moreover, by setting the first washer 191 and the second washer 192, not only can the mechanical stress between the first magnet 14 and the magnetic plate 112, and between the second magnet 15 and the clamping plate 114 be buffered, reducing damage to components caused by vibration or impact, but it can also play a role in insulation and dust prevention, extending the service life of the first magnet 14 and the second magnet 15, and ensuring the stability and consistency of sound quality.

[0084] More specifically, the common magnetic circuit module 1 also includes a third magnetic sheet 18, which is disposed in the first receiving groove, thereby optimizing the distribution and conduction efficiency of the magnetic circuit. The first voice coil 21 surrounds the third magnetic sheet 18 and is disposed between the first magnet 14 and the third magnetic sheet 18, which can ensure that the vibration of the first voice coil 21 in the magnetic field is more stable and accurate, reduce its vibration deviation, and improve the consistency of sound quality.

[0085] Specifically, such as Figures 1-3 As shown, the first loudspeaker 2 also includes a first support frame 25, which is disposed between the first voice coil 21 and the first frame 22. One end of the first support frame 25 is connected to the first diaphragm 232, and the other end is connected to the first frame 22 via a first support plate 24. The second loudspeaker 3 also includes a second support frame 35, which is disposed between the second voice coil 31 and the second frame 32. One end of the second support frame 35 is connected to the second diaphragm 332, and the other end is connected to the second frame 32 via a second support plate 34. By setting the first support frame 25 and the second support frame 35, more stable support can be provided for the two-way loudspeaker assembly, further optimizing acoustic performance. At the same time, the first support frame 25 and the second support frame 35 can also separate the internal spaces of the first loudspeaker 2 and the second loudspeaker 3, avoiding mutual interference of internal airflow, thereby improving the stability and consistency of sound quality and avoiding problems such as sound quality degradation caused by the lack of separation of internal spaces.

[0086] More specifically, such as Figure 3As shown, in this embodiment, both the first support frame 25 and the second support frame 35 are annular structures. The first support piece 24 surrounds the outer peripheral wall of the first support frame 25, and the second support piece 34 surrounds the outer peripheral wall of the second support frame 35. This allows the first support frame 25 and the second support frame to provide stable support for the bidirectional speaker assembly while optimizing acoustic performance. Furthermore, the first support frame 25 and the second support frame 35 can also separate the internal spaces of the first speaker 2 and the second speaker 3 to optimize internal air pressure balance.

[0087] In other embodiments, both the first support frame 25 and the second support frame 35 are frame-shaped structures, which can provide more support area and further enhance the structural stability of the two-way speaker assembly. In other embodiments, by omitting the first support frame 25 and the second support frame 35, the structure of the two-way speaker assembly can be simplified and manufacturing costs reduced. It is understood that there are no excessive limitations on the structure of the first support frame 25 and the second support frame 35 or their presence or absence, as long as the aforementioned functions can be achieved.

[0088] Specifically, such as Figures 1-10 As shown, the bidirectional loudspeaker assembly also includes a lead wire 4. The first support plate 24 and / or the second support plate 34 are provided with a corrugated portion 241. The corrugated portion 241 extends along the first direction and forms multiple continuous peaks and troughs. The lead wire 4 is laid along the contour of the corrugated portion 241 and abuts against the surface of the corrugated portion 241, which can reduce the installation space of the lead wire 4 and improve the compactness of the overall structure. Moreover, by repeatedly threading the lead wire 4 along the wavy corrugated portion 241, the lead wire 4 can be effectively fixed and prevent the lead wire 4 from loosening or shifting.

[0089] In addition, such as Figures 8-13 As shown, in order to further simplify the structure of the two-way speaker assembly, in some embodiments, the two-way speaker assembly does not include the first support frame 25 and the second support frame 35, thereby reducing its weight and manufacturing cost. Specific implementation methods are as follows:

[0090] Specifically, such as Figure 12 and Figure 13As shown, the first diaphragm assembly 23 further includes a first upper folding ring 234 and a first lower folding ring 235. The first lower folding ring 235 abuts against the first frame 22. The first upper folding ring 234 and the first lower folding ring 235 are sandwiched between the two sides of the first diaphragm plate 232. The second diaphragm assembly 33 further includes a second upper folding ring 334 and a second lower folding ring 335. The second lower folding ring 335 abuts against the second frame 32. The second upper folding ring 334 and the second lower folding ring 335 are sandwiched between the two sides of the second diaphragm plate 332. This arrangement can provide stable support and good vibration transmission for the first diaphragm plate 232 and the second diaphragm plate 332, while reducing energy loss during vibration, thereby improving sound quality performance and avoiding sound quality degradation caused by poor vibration characteristics.

[0091] Specifically, such as Figures 12-14 As shown, the first lower folding ring 235 and / or the second lower folding ring 335 are provided with a plurality of hollow portions 2351 at intervals along their circumference, which can reduce the weight of the first diaphragm assembly 23 and / or the second diaphragm assembly 33 and improve vibration efficiency, thereby improving the sound quality performance of the two-way speaker and avoiding the sound quality degradation caused by the excessive weight of the first diaphragm assembly 23 and / or the second diaphragm assembly 33.

[0092] More specifically, the first lower folding ring 235 and / or the second lower folding ring 335 are provided with multiple openings at intervals along their circumference, which are the hollow parts 2351. This arrangement not only reduces the weight of the first diaphragm assembly 23 and / or the second diaphragm assembly 33, but also facilitates the smooth airflow between the first lower folding ring 235 and / or the second lower folding ring 335, avoiding abnormal sound quality caused by airflow accumulation, and further optimizing the acoustic performance of the two-way speaker group.

[0093] Specifically, such as Figure 12 As shown, a first vibrating plate 232 is clamped at one end of the first upper folding ring 234 and the first lower folding ring 235, and a third washer 236 is clamped at the other end. A second vibrating plate 332 is clamped at one end of the second upper folding ring 334 and the second lower folding ring 335, and a fourth washer 237 is clamped at the other end. Through the above arrangement, the vibration characteristics of the first diaphragm assembly 23 and the second diaphragm assembly 33 can be further optimized, reducing energy loss during vibration and providing additional structural stability. It should be noted that those skilled in the art can adopt a split structure or an integrated structure for the above components according to the corresponding design requirements. A split structure facilitates independent processing and assembly, improving production efficiency; while an integrated structure can further enhance the stability of the overall structure and reduce assembly errors. Therefore, no specific structural form of the above components is limited here.

[0094] Specifically, such as Figures 1-16As shown, the common magnetic circuit module 1 also includes a first magnet 14 and a second magnet 15. The first magnet 14 is disposed inside the magnetic cup 11 and forms a first magnetic gap 12 between it and the inner wall of the magnetic cup 11. The first voice coil 21 is disposed outside the first magnet 14. The second magnet 15 is disposed outside the magnetic cup 11 and forms a second magnetic gap 13 between it and the outer wall of the magnetic cup 11. The second magnet 15 is disposed outside the second voice coil 31. This arrangement can provide a stable magnetic field environment for the first voice coil 21 and the second voice coil 31, ensuring that the vibration of the first voice coil 21 and the second voice coil 31 in the magnetic field is more stable and accurate, thereby improving the sound quality performance and avoiding problems such as abnormal sound quality or vibration deviation caused by unstable magnetic field.

[0095] More specifically, such as Figure 7 As shown, in this embodiment, the magnetic lines of force formed by the first magnet 14 and the second magnet 15 constitute a closed loop. By sharing the magnetic circuit of the first magnet 14 and the second magnet 15 with the first voice coil 21 and the second voice coil 31, the opposing forces generated by each other can be effectively canceled out, reducing mechanical vibration and thus improving sound quality. It should be noted that... Figure 7 The magnetic circuit is only described by way of example. Those skilled in the art can improve this application to obtain other expandable magnetic circuit designs, all of which are within the protection scope of this application. The specific arrangement of the magnetic circuit is not limited here.

[0096] The first magnet 14 and the second magnet 15 can be made of materials such as neodymium iron boron and ferrite. The specific materials of the above components are not limited here, as long as they can achieve the above functions.

[0097] Specifically, such as Figures 1-13 As shown, the common magnetic circuit module 1 also includes a first magnetic sheet 16 and a second magnetic sheet 17. The first magnetic sheet 16 is disposed on the first magnet 14, and the second magnetic sheet 17 is disposed on the second magnet 15. This can further optimize the performance of the magnetic circuit, improve the stability and uniformity of the magnetic field, and thus provide a better working environment for the first voice coil 21 and the second voice coil 31, making the vibration of the voice coil in the magnetic field more stable and accurate.

[0098] Specifically, such as Figures 1-15 As shown, the magnetic cup 11, the first magnet 14 and the first magnetic sheet 16 are connected by an airflow channel 115. The first speaker 2 and the second speaker 3 are interconnected through the airflow channel 115, which can optimize the airflow path inside the bidirectional speaker group, alleviate the diaphragm vibration caused by air pressure changes when the first speaker 2 and the second speaker 3 are working, reduce the negative impact of mechanical vibration on sound quality, and thus further improve the stability and clarity of sound quality.

[0099] Specifically, such as Figures 1-16As shown, the first magnet 14 and / or the second magnet 15 each include multiple spaced magnetic blocks 141, with magnetic gaps 142 formed between them. This makes the magnetic field distribution more uniform, which is beneficial for the voice coil to vibrate more stably in the magnetic field, reducing vibration deviation caused by uneven magnetic field, thereby reducing sound distortion and improving the purity and consistency of sound quality. Moreover, the multiple magnetic blocks 141 form a ring structure, which can generate a more concentrated and powerful magnetic field, thus providing a more powerful magnetic field drive for the first voice coil 21 and the second voice coil 31, enhancing the vibration amplitude of the voice coil, thereby improving the sensitivity of the speaker and making the sound output clearer and louder.

[0100] Specifically, such as Figures 1-9 As shown, along the second direction, the first frame 22 and / or the second frame 32 are provided with multiple interconnected stepped portions 222, and the stepped portions 222 have third through holes 223 for connecting to the outside. Since the third through holes 223 are opened at different positions on the stepped portions 222, it is convenient to realize the exchange of external airflow between different cavities inside the speaker, thereby further improving the heat dissipation effect.

[0101] More specifically, multiple third through holes 223 are provided, and the multiple third through holes 223 are arranged circumferentially along the first basket 22 and / or the second basket 32, which can provide multiple airflow channels 115, further optimize the airflow inside the speaker, reduce sound quality abnormalities caused by air pressure changes, and thus improve the acoustic performance of the two-way speaker group.

[0102] Specifically, such as Figures 1-17 As shown, the first voice coil 21 and / or the second voice coil 31 are provided with a plurality of second through holes 211 spaced apart along their circumference, which can ensure the heat dissipation performance of the first voice coil 21 and / or the second voice coil 31, thereby improving the service life of the above components. At the same time, it avoids the problem of sound quality degradation caused by overheating, thereby improving the overall performance of the speaker.

[0103] The number of second through holes 211 can be set to two, three or four, and the specific number of second through holes 211 is not limited here.

[0104] More specifically, in this embodiment, the diameter of the first voice coil 21 is smaller than the diameter of the second voice coil 31, that is, the two voice coils are set to be one large and one small. Since the smaller first voice coil 21 can provide a higher high frequency response, while the larger second voice coil 31 can enhance the low frequency performance, the two work together to achieve a wider frequency response range and a more balanced sound quality effect, thereby optimizing the acoustic performance of the speaker group.

[0105] In other embodiments, the diameter of the first voice coil 21 is larger than the diameter of the second voice coil 31, or the two voice coils have the same diameter, thereby improving the applicability and flexibility of the speaker assembly. The specific size of the voice coils is not limited here.

[0106] It is important to note that the bidirectional speaker assembly provided in this embodiment uses the first voice coil 21 and the second voice coil 31 to share the same magnetic circuit. This allows them to cancel each other out during bidirectional operation, thereby reducing mechanical vibration, improving sound quality, and providing users with a more pleasant listening experience. Furthermore, the bidirectional speaker assembly of this embodiment has a more compact structure, making it suitable for small-volume speaker modules. By emitting sound from both the front and back of the speaker module, the power handling capacity and input energy loudness of the speaker module are increased, providing users with a truly immersive surround sound experience. Moreover, the aforementioned through-hole design improves the overall heat dissipation performance, which is beneficial for extending the lifespan of each component.

[0107] Furthermore, it should be noted that in this embodiment, "through hole," "through-hole," or "mounting hole" refers to a hole or channel that penetrates two opposing surfaces of a component. Those skilled in the art can adjust and improve the aforementioned "holes or channels" in this embodiment based on the technical solution of this application and common general knowledge, and all such adjustments should fall within the protection scope of this application.

[0108] like Figures 1-20 As shown, this embodiment also provides a speaker box, which includes a cabinet 100 and the above-mentioned bidirectional speaker group. The bidirectional speaker group is assembled in the cabinet 100. By optimizing the self-installation structure and layout of the bidirectional speaker group, the impact of mechanical vibration on sound quality is reduced, and vibration reduction and performance improvement can be achieved in a limited space.

[0109] Specifically, such as Figure 20 As shown, the enclosure 100 includes a first housing and a second housing connected to each other. The two-way speaker assembly is assembled between the first housing and the second housing and electrically connected to a power supply device via wires. This facilitates the installation and maintenance of the two-way speaker assembly and also provides a stable support structure for it. The electrical connection to the power supply device ensures a stable power supply to the speaker assembly, avoiding sound quality problems caused by unstable power supply.

[0110] It should be noted that the shape, size, material, and way of matching the enclosure 100 with the speakers are not limited. The two-way speaker group can be set to two, three, or four groups, and the specific number is not limited. It can be flexibly configured according to the power requirements and sound quality performance of the speakers.

[0111] In other embodiments, the enclosure 100 can be a closed enclosure, an open enclosure, or an enclosure with a passive radiator, thereby further enhancing the speaker's applicability and flexibility. A closed enclosure provides good low-frequency response and a smaller enclosure size, making it suitable for applications with high low-frequency requirements. An open enclosure enhances low-frequency performance through airflow within the enclosure, making it suitable for users who demand a strong bass response. A passive radiator further improves low-frequency performance while maintaining the compactness of the enclosure 100.

[0112] This embodiment also provides an audio device, which includes the above-described bidirectional speaker assembly, capable of balancing vibration reduction and performance enhancement within a limited space. The audio device in this embodiment includes, but is not limited to, headphones, speakers, CD players, recorders, and mobile communication terminals.

[0113] 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 two-way loudspeaker assembly, characterized in that, include: The common magnetic circuit module (1) includes a magnetic cup (11), wherein the magnetic cup (11) has a first magnetic gap (12) and a second magnetic gap (13) respectively on its inner and outer sides along a first direction, and a first through hole (111) is provided on the magnetic cup (11) to connect the first magnetic gap (12) and the second magnetic gap (13); The first loudspeaker (2) and the second loudspeaker (3) are respectively disposed on both sides of the common magnetic circuit module (1) along the second direction. The first loudspeaker (2) includes a first annular voice coil (21), and the second loudspeaker (3) includes a second annular voice coil (31). The first voice coil (21) and the second voice coil (31) are coaxially arranged, and the first voice coil (21) is correspondingly arranged with the first magnetic gap (12). The first voice coil (21) can vibrate in the first magnetic gap (12) along the second direction. The second voice coil (31) is correspondingly arranged with the second magnetic gap (13), and the second voice coil (31) can vibrate in the second magnetic gap (13) along the second direction.

2. The bidirectional loudspeaker assembly according to claim 1, characterized in that, The magnetic bowl (11) is provided with a non-magnetic part.

3. The bidirectional loudspeaker assembly according to claim 2, characterized in that, The magnetic cup (11) includes a magnetic plate (112), a connecting cylinder (113), and a clamping plate (114). The connecting cylinder (113) is through-hole disposed. The magnetic plate (112) covers one end of the connecting cylinder (113). The clamping plate (114) is disposed at the other end of the connecting cylinder (113). The clamping plate (114) extends along the circumference of the connecting cylinder (113) toward the side away from the center of the connecting cylinder (113). The connecting cylinder (113) is configured as the non-magnetic part.

4. The bidirectional loudspeaker assembly according to claim 3, characterized in that, The magnetic plate (112) and / or the clamping plate (114) are provided with the first through hole (111), and there are multiple first through holes (111) arranged at intervals.

5. The bidirectional loudspeaker assembly according to claim 1, characterized in that, The magnetic bowl (11) is configured as an integral or separate structure.

6. The bidirectional loudspeaker assembly according to claim 1, characterized in that, The first loudspeaker (2) further includes a first frame (22) and a first diaphragm assembly (23). The first frame (22) has a first through hole (221) through it along the second direction. The outer periphery of the first diaphragm assembly (23) is connected to the first frame (22) and covers one end of the first through hole (221). One end of the first voice coil (21) is connected to the first diaphragm assembly (23), and the other end is correspondingly set with the first magnetic gap (12). The second loudspeaker (3) further includes a second frame (32) and a second diaphragm assembly (33). The second frame (32) has a second through hole (321) through it along the second direction. The outer periphery of the second diaphragm assembly (33) is connected to the second frame (32) and covers one end of the second through hole (321). One end of the second voice coil (31) is connected to the second diaphragm assembly (33), and the other end is correspondingly set with the second magnetic gap (13). The first basin stand (22) is connected to the second basin stand (32); or, the first basin stand (22) and the second basin stand (32) are integrally formed.

7. The bidirectional loudspeaker assembly according to claim 6, characterized in that, The first diaphragm assembly (23) further includes a first diaphragm plate (232) and a first dust cover (233). The first diaphragm plate (232) is connected to the first frame (22) and has a first mounting hole (2321). One end of the first voice coil (21) is placed in the first mounting hole (2321). The first dust cover (233) is connected to one end of the first voice coil (21) and covers the first mounting hole (2321). The second diaphragm assembly (33) further includes a second diaphragm plate (332) and a second dust cover (333). The second diaphragm plate (332) is connected to the second frame (32) and has a second mounting hole (3321). One end of the second voice coil (31) is placed in the second mounting hole (3321). The second dust cover (333) is connected to one end of the second voice coil (31) and covers the second mounting hole (3321).

8. The bidirectional loudspeaker assembly according to claim 7, characterized in that, The first loudspeaker (2) further includes a first support plate (24), one end of which is connected to the first diaphragm plate (232) and the other end is connected to the first frame (22); the second loudspeaker (3) further includes a second support plate (34), one end of which is connected to the second diaphragm plate (332) and the other end is connected to the second frame (32).

9. The bidirectional loudspeaker assembly according to claim 8, characterized in that, The first loudspeaker (2) further includes a first support frame (25), which is disposed between the first voice coil (21) and the first frame (22). One end of the first support frame (25) is connected to the first diaphragm (232), and the other end is connected to the first frame (22) through the first support piece (24). The second loudspeaker (3) also includes a second support frame (35), which is disposed between the second voice coil (31) and the second frame (32). One end of the second support frame (35) is connected to the second diaphragm (332), and the other end is connected to the second frame (32) through the second support plate (34).

10. The bidirectional loudspeaker assembly according to claim 8, characterized in that, The bidirectional loudspeaker assembly also includes a lead wire (4), and the first branch (24) and / or the second branch (34) are provided with a corrugated portion (241). The corrugated portion (241) extends along the first direction and forms a plurality of continuous peaks and troughs. The lead wire (4) is arranged along the contour of the corrugated portion (241) and abuts against the surface of the corrugated portion (241).

11. The bidirectional loudspeaker assembly according to claim 7, characterized in that, The first diaphragm assembly (23) further includes a first upper folding ring (234) and a first lower folding ring (235), the first lower folding ring (235) abuts against the first basin frame (22), and the first upper folding ring (234) and the first lower folding ring (235) are sandwiched on both sides of the first vibrating plate (232); The second diaphragm assembly (33) further includes a second upper folding ring (334) and a second lower folding ring (335), the second lower folding ring (335) abutting against the second frame (32), and the second upper folding ring (334) and the second lower folding ring (335) sandwiched on both sides of the second vibrating plate (332).

12. The bidirectional loudspeaker assembly according to claim 11, characterized in that, The first lower folding ring (235) and / or the second lower folding ring (335) are provided with a plurality of hollowed-out portions (2351) at intervals along their circumference.

13. The bidirectional loudspeaker assembly according to claim 1, characterized in that, The common magnetic circuit module (1) further includes a first magnet (14) and a second magnet (15). The first magnet (14) is disposed on the inner side of the magnetic cup (11) and forms a first magnetic gap (12) with the inner wall of the magnetic cup (11). The first voice coil (21) surrounds the outer side of the first magnet (14). The second magnet (15) is disposed on the outer side of the magnetic cup (11) and forms a second magnetic gap (13) with the outer wall of the magnetic cup (11). The second magnet (15) surrounds the outer side of the second voice coil (31).

14. The bidirectional loudspeaker assembly according to claim 13, characterized in that, The common magnetic circuit module (1) further includes a first magnetic sheet (16) and a second magnetic sheet (17), wherein the first magnetic sheet (16) is disposed on the first magnet (14) and the second magnetic sheet (17) is disposed on the second magnet (15).

15. The bidirectional loudspeaker assembly according to claim 14, characterized in that, The magnetic cup (11), the first magnet (14) and the first magnetic sheet (16) are connected by an airflow channel (115), and the first speaker (2) and the second speaker (3) are connected to each other through the airflow channel (115).

16. The bidirectional loudspeaker assembly according to claim 13, characterized in that, The first magnet (14) and / or the second magnet (15) each include a plurality of spaced magnetic blocks (141), with magnetic gaps (142) formed between the magnetic blocks (141), and the plurality of magnetic blocks (141) forming a ring structure.

17. The bidirectional loudspeaker assembly according to claim 6, characterized in that, Along the second direction, the first basin stand (22) and / or the second basin stand (32) are provided with a plurality of interconnected stepped portions (222), and the stepped portions (222) are provided with a third through hole (223) for communicating with the outside.

18. The bidirectional loudspeaker assembly according to any one of claims 1-17, characterized in that, The first voice coil (21) and / or the second voice coil (31) are provided with a plurality of second through holes (211) spaced apart along their circumference.

19. A speaker, characterized in that, It includes a housing (100) and a two-way loudspeaker assembly as described in any one of claims 1-18, the two-way loudspeaker assembly being assembled in the housing (100).

20. An audio device, characterized in that, Includes the bidirectional loudspeaker assembly as described in any one of claims 1-18.

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