Loudspeaker and sound producing device

Abstract

The application discloses a loudspeaker and a sound production device, the loudspeaker comprising a magnetic circuit system and a vibration system. The magnetic circuit system comprises an inner magnetic circuit and an outer magnetic circuit, the outer magnetic circuit and the inner magnetic circuit are arranged in a spaced manner and enclose a magnetic gap in a spherical shape; the vibration system comprises a diaphragm and a voice coil, the diaphragm is arranged in the magnetic gap, the diaphragm comprises a plurality of vibration parts distributed in a spaced manner along an axial direction of the magnetic circuit system, the vibration parts are arranged in an extending manner along a circumferential direction of the magnetic circuit system, the vibration part comprises a first diaphragm and a second diaphragm connected and arranged in a spaced manner along the axial direction of the magnetic circuit system, and the voice coil is arranged in the plurality of vibration parts, the voice coil is used for driving the first diaphragm and the second diaphragm in each vibration part to approach or move away from each other when powered. The technical scheme of the application enables the loudspeaker to produce sound in different directions, avoids the difference in sound production effect at different positions in the circumferential direction, and thus improves the user experience of the loudspeaker.

Description

loudspeakers and sound-producing devices Technical Field

[0001] This invention relates to the field of loudspeaker technology, and in particular to a loudspeaker and a sound-generating device using the loudspeaker. Background Technology

[0002] Currently, speaker diaphragms are typically designed to vibrate only along the axis of the voice coil. This results in a single direction of sound emission, meaning the speaker is relatively directional. Consequently, the sound quality can vary at different positions along the circumference of the speaker, negatively impacting the user experience. Summary of the Invention

[0003] The main objective of this invention is to provide a loudspeaker that can emit sound in different directions, avoiding differences in sound effects at different positions in the circumferential direction, thereby improving the user's experience with the loudspeaker.

[0004] To achieve the above objectives, the loudspeaker proposed in this invention includes:

[0005] A magnetic circuit system comprising an inner magnetic circuit and an outer magnetic circuit, wherein the outer magnetic circuit and the inner magnetic circuit are spaced apart and enclose a spherical magnetic gap; and

[0006] A vibration system includes a diaphragm and a voice coil. The diaphragm is disposed within the magnetic gap and includes multiple vibrating portions spaced apart along the axial direction of the magnetic circuit system. The vibrating portions extend along the circumferential direction of the magnetic circuit system and include a first diaphragm and a second diaphragm connected to each other and arranged opposite to each other in the axial direction of the magnetic circuit system. The voice coil is disposed in the multiple vibrating portions and is used to drive the first diaphragm and the second diaphragm in each vibrating portion to move closer or further apart when energized.

[0007] Optionally, the internal magnetic circuit includes a plurality of internal magnets, which are spaced apart along the axial direction of the magnetic circuit system;

[0008] The inner magnets are arranged in a ring shape, with the inner surfaces of the multiple inner magnets located on the same spherical surface and the outer surfaces of the multiple inner magnets located on the same spherical surface.

[0009] Optionally, the external magnetic circuit includes a plurality of external magnets, which are spaced apart along the axial direction of the magnetic circuit system;

[0010] The outer magnet is arranged in a ring shape, and the inner surfaces of the multiple outer magnets are located on the same spherical surface. The magnetic poles of the outer magnet and the inner magnet at their closest ends are arranged in opposite directions.

[0011] Optionally, each of the vibrating parts corresponds to one of the inner magnets, and the gap formed by the enclosed space of each pair of adjacent outer magnets corresponds to one of the vibrating parts.

[0012] Optionally, the projected size of the inner magnet in the axial direction of the magnetic circuit system is larger than the projected size of the vibrating part in the axial direction of the magnetic circuit system;

[0013] And / or, the projected size of the gap formed by the enclosed space of each two adjacent outer magnets in the axial direction of the magnetic circuit system is smaller than the projected size of the vibrating part in the axial direction of the magnetic circuit system;

[0014] And / or, the vibrating part is spaced apart from both the inner magnet and the outer magnet.

[0015] Optionally, the speaker further includes a mounting bracket for connecting a plurality of the inner magnets and / or the outer magnets.

[0016] Optionally, the fixing frame is arc-shaped and disposed within the magnetic gap, and each of the vibrating parts is provided with a clearance opening at the position corresponding to the fixing frame;

[0017] Multiple inner magnets are connected to the side of the fixing frame facing the inner magnets, and multiple outer magnets are connected to the side of the fixing frame facing the outer magnets.

[0018] Optionally, the fixing frame has a plurality of first slots on the side facing the inner magnet, and each inner magnet is embedded in one of the first slots;

[0019] And / or, the fixing frame is provided with a plurality of second slots on the side facing the outer magnet, and each outer magnet is embedded in one of the second slots.

[0020] Optionally, the fixing frame includes an inner frame and an outer frame, with the outer frame disposed on the side of the inner frame facing the outer magnet;

[0021] Multiple inner magnets are connected to the inner frame, and multiple outer magnets are connected to the outer frame;

[0022] The diaphragm further includes a first connecting portion, which is disposed between the inner frame and the outer frame. The first connecting portion is also connected to a plurality of the vibrating portions on both sides of the magnetic circuit system in the circumferential direction.

[0023] Optionally, the diaphragm further includes a plurality of second connecting portions, wherein the opposite sides of each second connecting portion are respectively connected to the first diaphragm and the second diaphragm that are close to each other in two adjacent vibrating portions;

[0024] The inner surface of the first connecting part and the inner surfaces of the plurality of second connecting parts are located on the same spherical surface, and the outer surface of the first connecting part and the outer surfaces of the plurality of second connecting parts are located on the same spherical surface. The first connecting part connects the plurality of second connecting parts on both sides of the magnetic circuit system in the circumferential direction.

[0025] Optionally, the diaphragm further includes two third connecting portions, both of which extend in a ring shape along the circumferential direction of the magnetic circuit system;

[0026] The axial direction of the magnetic circuit system is defined as the up-down direction, and one of the third connecting parts is located above the uppermost inner magnet and is connected to the upper end of the first connecting part and the first diaphragm in the uppermost vibrating part.

[0027] Another third connection is located below the inner magnet at the bottom and is connected to the lower end of the first connection and the second diaphragm in the vibrating part at the bottom.

[0028] Optionally, the speaker further includes two cover plates, one of which covers the uppermost outer magnet and is connected to the upper third connecting portion and the upper end of the mounting bracket.

[0029] Another cover plate is attached to the lowermost outer magnet and connected to the lower third connecting part and the lower end of the fixing frame.

[0030] Optionally, the speaker also includes a support base connected to the lower surface of the cover plate below.

[0031] Optionally, the number of the fixing frames is at least two, and the at least two fixing frames are distributed at intervals along the circumferential direction of the magnetic circuit system.

[0032] Optionally, the internal magnetic circuit further includes an internal magnetic guide plate, which is disposed on the side of the internal magnet facing the external magnet;

[0033] And / or, the external magnetic circuit further includes an external magnetic guide plate, which is disposed on the side of the external magnet facing the internal magnet.

[0034] Optionally, the first diaphragm and the second diaphragm in the vibration section are both perpendicular to the axial direction of the magnetic circuit system. The vibration section also includes a third diaphragm, with the opposite sides of the third diaphragm connected to the first diaphragm and the second diaphragm, respectively.

[0035] Optionally, the third diaphragm is disposed on the side of the first diaphragm and the second diaphragm near the external magnetic circuit;

[0036] And / or, the third diaphragm is an arc-shaped plate, and the concave surface of the third diaphragm is arranged facing the inner magnetic circuit.

[0037] Optionally, the voice coil includes a first segment, a second segment, and a third segment. The first segment and the second segment are respectively disposed on the first diaphragm and the second diaphragm, and both extend along the circumferential direction of the magnetic circuit system. The third segment connects the adjacent first segment and the second segment.

[0038] And / or, the voice coil is printed on the diaphragm;

[0039] And / or, the voice coil is located on the outside of the diaphragm.

[0040] The present invention also proposes a sound-generating device, including a first loudspeaker, wherein the first loudspeaker is the loudspeaker described above.

[0041] Optionally, the sound-generating device further includes a housing, with the first speaker disposed on the outside of the housing;

[0042] The sound-generating device also includes a second speaker, which is a woofer. The second speaker is located inside the housing, and the housing has a sound outlet corresponding to the position of the second speaker.

[0043] Optionally, the housing is defined to have a vertical direction, the first speaker is disposed on the upper surface of the housing, and the axis of the first speaker is parallel to the vertical direction, while the axis of the second speaker is perpendicular to the vertical direction.

[0044] On a projection plane perpendicular to the axis of the second speaker, the first speaker and the second speaker are located on the center line of the housing in the vertical direction.

[0045] In use, the technical solution of this invention, because the diaphragm is disposed within the magnetic gap formed by the magnetic circuit system, when the voice coil disposed on the diaphragm is energized, the voice coil, due to the force within the magnetic field of the magnetic gap, drives the first and second diaphragms of each vibrating part in the diaphragm to move closer or further apart. This causes air to be squeezed out or drawn in, thus generating sound waves and achieving sound generation through vibration of the vibrating parts. Furthermore, the magnetic gap is spherical, and the multiple vibrating parts in the diaphragm are spaced apart along the axial direction of the magnetic circuit system, with each vibrating part extending along the circumferential direction of the magnetic circuit system. This allows the diaphragm to vibrate and generate sound at various points around the axial direction perpendicular to the magnetic circuit system through multiple vibrating parts, and simultaneously vibrate and generate sound at various points along the circumference of the magnetic circuit system through each vibrating part. In other words, the loudspeaker can generate sound in all directions, 360° in the horizontal plane and 360° in the vertical plane. Therefore, this solution improves the magnetic circuit system and vibration system, enabling the speaker to emit sound in different directions, avoiding differences in sound effects at different positions in the circumferential direction, thereby enhancing the user's speaker experience. Attached Figure Description

[0046] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0047] Figure 1 is a structural schematic diagram of a loudspeaker according to an embodiment of the present invention;

[0048] Figure 2 is a schematic diagram of the speaker in Figure 1 from another perspective;

[0049] Figure 3 is a schematic diagram of an exploded structure of the loudspeaker in Figure 1;

[0050] Figure 4 is a schematic diagram of another exploded structure of the loudspeaker in Figure 3;

[0051] Figure 5 is a cross-sectional view of the loudspeaker in Figure 1;

[0052] Figure 6 is a schematic diagram of the diaphragm structure in Figure 4;

[0053] Figure 7 is a schematic diagram of the vibration system of the loudspeaker of the present invention;

[0054] Figure 8 is a structural schematic diagram of the vibration system in Figure 7 from another perspective;

[0055] Figure 9 is a structural schematic diagram of the vibration system in Figure 7 from another perspective.

[0056] Explanation of icon numbers:

[0057]

[0058]

[0059] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0060] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0061] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in the embodiments of this application are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0062] In this application, unless otherwise expressly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0063] Furthermore, the use of terms such as "first" and "second" in this application is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the word "and / or" throughout the text means including three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution that simultaneously satisfies A and B. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of a person skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed in this application.

[0064] A loudspeaker, also known as a horn, is a transducer used to convert electrical signals into sound signals. Currently, loudspeaker diaphragms are typically designed to vibrate only along the axis of the voice coil to produce sound, while mid-to-high frequency sounds have strong directivity. This makes the sound output direction of such loudspeakers singular, meaning their directivity is relatively strong. Consequently, the sound effect can easily vary at different positions around the loudspeaker, affecting the user's experience.

[0065] Therefore, based on the above considerations, in order to solve the problem of the current loudspeakers having a single sound emission direction, which affects the user experience, this application proposes a novel loudspeaker. This loudspeaker innovatively sets the magnetic gap in the magnetic circuit system to a spherical shape, and sets the diaphragm to include multiple vibrating parts spaced apart along the axial direction of the magnetic circuit system. Each vibrating part extends along the circumferential direction of the magnetic circuit system and includes a first diaphragm and a second diaphragm connected to each other and arranged opposite each other in the axial direction of the magnetic circuit system. When energized, the voice coil drives the first and second diaphragms in each vibrating part to move closer or further apart, thereby enabling the loudspeaker to achieve 360° omnidirectional sound emission in both the horizontal and vertical planes.

[0066] The structure of the loudspeaker proposed in this application will be explained and described below with reference to an embodiment. In one embodiment of this application, with reference to Figures 1 to 9, the loudspeaker 100 proposed in this application includes a magnetic circuit system 10 and a vibration system 30. The magnetic circuit system 10 includes an inner magnetic circuit 11 and an outer magnetic circuit 13, which are spaced apart and enclose a spherical magnetic gap 15. The vibration system 30 includes a diaphragm 31 and a voice coil 33. The diaphragm 31 is disposed within the magnetic gap 15 and includes a plurality of vibration portions 311 spaced apart along the axial direction of the magnetic circuit system 10. The vibration portions 311 extend along the circumferential direction of the magnetic circuit system 10 and include a first diaphragm 312 and a second diaphragm 313 connected to each other and arranged opposite each other in the axial direction of the magnetic circuit system 10. The voice coil 33 is disposed in the plurality of vibration portions 311 and is used to drive the first diaphragm 312 and the second diaphragm 313 in each vibration portion 311 to move closer or further apart when energized.

[0067] The magnetic circuit system 10 can form a magnetic gap 15 to generate a strong magnetic field. The magnetic gap 15, formed by the inner magnetic circuit 11 and the outer magnetic circuit 13 located outside the inner magnetic circuit 11, can be a complete spherical cavity, or it can be a spherical cavity formed by a combination of multiple spaced and connected gap segments. Furthermore, the inner magnetic circuit 11 can include multiple inner magnets 111 arranged in a ring shape, as described below, or it can include multiple magnets arranged in a block shape. Similarly, the outer magnetic circuit 13 can include multiple outer magnets 131 arranged in a ring shape, as described below, or it can include multiple magnets arranged in a block shape. Therefore, this application does not limit the specific structural form of the inner magnetic circuit 11 and the outer magnetic circuit 13. It should also be noted that the axial direction of the magnetic circuit system 10 can also be considered the axial direction of the speaker 100, and the circumferential direction of the magnetic circuit system 10 can also be considered the circumferential direction of the speaker 100.

[0068] The vibration system 30, when energized, causes the voice coil 33 to be stressed within the magnetic field of the magnetic gap 15, driving the first diaphragm 312 and the second diaphragm 313 in each vibrating section 311 of the diaphragm 31 to move closer or further apart. This, in turn, causes the first diaphragm 312 and the second diaphragm 313 to compress or draw in air, thus generating sound waves and causing the diaphragm 31 to vibrate and produce sound. The first diaphragm 312 and the second diaphragm 313 in the vibrating section 311 can be directly connected or indirectly connected. When the first diaphragm 312 and the second diaphragm 313 are directly connected, the vibrating section 311 may consist only of the first diaphragm 312 and the second diaphragm 313. In this case, the first diaphragm 312 and the second diaphragm 313 can be arranged at an angle. When the first diaphragm 312 and the second diaphragm 313 are indirectly connected, the vibrating section 311 may further include a third diaphragm 315 for connecting the first diaphragm 312 and the second diaphragm 313, as described below. At this time, the first diaphragm 312 and the second diaphragm 313 can be arranged at an angle, or they can be arranged in parallel. Furthermore, it should be noted that the first diaphragm 312 and the second diaphragm 313 can be flat (a plate structure with two flat surfaces facing each other), or they can be curved (a plate structure with two curved surfaces facing each other). This application does not limit the specific shape and structure of the first diaphragm 312 and the second diaphragm 313, as long as they can vibrate and produce sound by moving closer and further apart under the action of their respective energized voice coils 33. Adjacent vibrating parts 311 can be connected by the second connecting part 317 described below. Of course, adjacent vibrating parts 311 can also be independently arranged without connection. Additionally, the vibrating part 311 can be arranged in a complete circle along the circumference of the magnetic circuit system 10, or it can have one or more clearance openings 314 as described below. Furthermore, the current directions of the voice coils 33 on the first diaphragm 312 and the second diaphragm 313 in the same vibrating part 311 are opposite, so that when the voice coils 33 are energized, the voice coils 33 on the first diaphragm 312 and the second diaphragm 313 in the same vibrating part 311 can be subjected to opposite forces, thereby driving the first diaphragm 312 and the second diaphragm 313 to move closer or further apart. Therefore, the voice coil 33 can include, as described below, a first segment 331 and a second segment 333 respectively disposed on the first diaphragm 312 and the second diaphragm 313, and a third segment 335 connecting the first segment 331 and the second segment 333. The third segment 335 and the first segment 331 and the second segment 333 can be approximately enclosed to form a U-shaped structure, so that after the current passes through the third segment 335, the flow direction of the current in the second segment 333 can be opposite to the flow direction of the current in the first segment 331. Of course, there can be multiple voice coils 33, which are independently set on the first diaphragm 312 and the second diaphragm 313 respectively.At this point, currents flowing in opposite directions can be directly applied to the voice coils 33 on the first diaphragm 312 and the second diaphragm 313. In short, this application does not specifically limit the arrangement of the voice coils 33 on the diaphragm 31, as long as the voice coils 33 on the first diaphragm 312 and the second diaphragm 313 are used to pass currents flowing in opposite directions. Furthermore, the voice coils 33 can be directly printed on the diaphragm 31, or they can be separate from the diaphragm 31 and directly fixed to the diaphragm 31 by adhesive bonding.

[0069] In use, the technical solution of this application, since the diaphragm 31 is disposed in the magnetic gap 15 formed by the magnetic circuit system 10, when the voice coil 33 disposed on the diaphragm 31 is energized, the voice coil 33 can be driven by the magnetic field of the magnetic gap 15 to move the first diaphragm 312 and the second diaphragm 313 of each vibrating part 311 in the diaphragm 31 closer or further apart, so that air is squeezed out or drawn in, thereby pushing the air to form sound waves, and thus realizing the vibration of the vibrating part 311 to generate sound. Furthermore, the magnetic gap 15 is spherical, and the multiple vibrating parts 311 in the diaphragm 31 are also spaced apart in the axial direction of the magnetic circuit system 10, and each vibrating part 311 extends along the circumferential direction of the magnetic circuit system 10. In this way, the diaphragm 31 can vibrate and generate sound at various points around the axial direction perpendicular to the magnetic circuit system 10 through the multiple vibrating parts 311, and at the same time, each vibrating part 311 vibrates and generates sound at various points in the circumferential direction of the magnetic circuit system 10. In other words, the speaker 100 can emit sound in all directions, both horizontally and vertically. Therefore, by improving the magnetic circuit system 10 and the vibration system 30, this solution enables the speaker 100 to emit sound in different directions, avoiding differences in sound effects at different positions in the circumferential direction, thereby improving the user experience of the speaker 100.

[0070] Referring to Figures 3 to 5, in one embodiment of this application, the inner magnetic circuit 11 includes a plurality of inner magnets 111, which are spaced apart along the axial direction of the magnetic circuit system 10; the inner magnets 111 are arranged in a ring shape, and the inner surfaces of the plurality of inner magnets 111 are located on the same spherical surface, and the outer surfaces of the plurality of inner magnets 111 are located on the same spherical surface.

[0071] In this embodiment, the inner magnetic circuit 11 is configured to include multiple inner magnets 111 arranged in a ring shape, so that they only need to be arranged sequentially at intervals in the axial direction of the magnetic circuit system 10. This simplifies the number of inner magnetic circuits 11, thereby reducing the manufacturing cost of the inner magnetic circuits 11 and improving the convenience of their installation. Furthermore, by having the inner surfaces of the multiple inner magnets 111 located on the same spherical surface, and the outer surfaces of the multiple inner magnets 111 also located on the same spherical surface, it is convenient for the inner magnetic circuits 11 to enclose and form a spherical magnetic gap 15. At the same time, this facilitates the formation of magnetic lines of force parallel to the radial direction of the magnetic gap 15, thereby improving the uniformity of the magnetic field strength at various points in the magnetic gap 15, so that the diaphragm 31 can vibrate and produce sound uniformly at various points, improving the consistency of the listening experience around the speaker 100 and further enhancing the user's experience with the speaker 100. In addition, the uniform wall thickness of the inner magnets 111 at various points also makes their shape more regular, which also facilitates their processing and shaping. The number of inner magnets 111 can correspond to the number of vibrating parts 311. Of course, the number of inner magnets 111 can also be different from the number of vibrating parts 311.

[0072] Referring to Figures 3 to 5, in one embodiment of this application, the outer magnetic circuit 13 includes a plurality of outer magnets 131, which are spaced apart along the axial direction of the magnetic circuit system 10. The outer magnets 131 are arranged in a ring shape, and the inner surfaces of the plurality of outer magnets 131 are located on the same spherical surface. The outer surfaces of the plurality of outer magnets 131 are located on the same spherical surface. The magnetic poles of the outer magnets 131 and the inner magnets 111 that are close to each other are arranged in opposite directions.

[0073] Multiple outer magnets 131 surround the outer side of the inner magnet 111, and a diaphragm 31 is disposed between the outer magnets 131 and the inner magnets 111. Each outer magnet 131 and each inner magnet 111 can be arranged in a one-to-one correspondence, or they can be partially corresponding, or completely staggered. Furthermore, the number of outer magnets 131 and the number of inner magnets 111 can be the same, or they can be different.

[0074] In this embodiment, the external magnetic circuit 13 is configured to include multiple ring-shaped external magnets 131, requiring only sequential spacing along the axial direction of the magnetic circuit system 10. This simplifies the number of external magnetic circuits 13, thereby reducing manufacturing costs and improving ease of installation. Furthermore, by placing the outer surfaces of the multiple external magnets 131 on the same spherical surface, the external magnetic circuit 13 can easily enclose and form a spherical magnetic gap 15. This also facilitates the formation of magnetic lines of force parallel to the radial direction of the magnetic gap 15, further improving the uniformity of the magnetic field strength at various points. This allows the diaphragm 31 to vibrate and produce sound uniformly, further enhancing the consistency of the listening experience around the speaker 100 and improving the user's experience with the speaker 100. Additionally, the uniform wall thickness of the external magnets 131 makes their shape more regular, further facilitating their processing and shaping.

[0075] Please refer to Figure 5. In one embodiment of this application, each vibration part 311 is provided with an inner magnet 111, and the gap formed by the enclosed space of each two adjacent outer magnets 131 is provided with a vibration part 311.

[0076] In this embodiment, each vibrating part 311 is configured to correspond to an inner magnet 111, allowing the vibrating part 311 to effectively align with the magnetic field generated by the inner magnet 111. This enables full and effective utilization of the magnetic field, allowing the voice coil 33 on the diaphragm 31 to receive a relatively large force after being energized, thus effectively driving the first diaphragm 312 and the second diaphragm 313 within the diaphragm 31. The gap formed by the enclosed space between two adjacent outer magnets 131 corresponds to one vibrating part 311, facilitating the smooth passage of sound waves generated by the vibration of the vibrating part 311, thereby improving the sound output of the speaker 100. Of course, in other embodiments, each vibrating part 311 may also correspond to both an inner magnet 111 and an outer magnet 131.

[0077] Please refer to Figure 5. In one embodiment of this application, the projected size of the inner magnet 111 in the axial direction of the magnetic circuit system 10 is larger than the projected size of the vibrating part 311 in the axial direction of the magnetic circuit system 10.

[0078] In this embodiment, the projected size of the inner magnet 111 in the magnetic circuit system 10 is set larger than the projected size of the vibrating part 311, so that the vibrating part 311 can be sufficiently located in the magnetic field formed by the inner magnet 111. This allows the voice coil 33 on the vibrating part 311 to be effectively subjected to force after being energized, thereby effectively driving the vibrating part 311. Of course, in other embodiments, it is also possible for the projected size of the inner magnet 111 in the axial direction of the magnetic circuit system 10 to be equal to the projected size of the vibrating part 311 in the axial direction of the magnetic circuit system 10.

[0079] Please refer to Figure 5. In one embodiment of this application, the projected size of the gap formed by the enclosed space of each pair of adjacent outer magnets 131 in the axial direction of the magnetic circuit system 10 is smaller than the projected size of the vibrating part 311 in the axial direction of the magnetic circuit system 10.

[0080] In this embodiment, the projected size of the gap formed by two adjacent outer magnets 131 is set smaller than the projected size of the vibrating part 311. This allows airflow to quickly pass through the gap formed by the two adjacent outer magnets 131 when the vibrating part 311 is driven by the energized voice coil 33 to compress or draw in air, thereby quickly and effectively generating air waves to achieve sound production from the speaker 100. Furthermore, this arrangement reduces the possibility of foreign objects falling into the speaker 100 through the gap formed by the two adjacent outer magnets 131. Of course, in other embodiments, it is also possible for the projected size of the gap formed by two adjacent outer magnets 131 in the axial direction of the magnetic circuit system 10 to be equal to the projected size of the vibrating part 311 in the axial direction of the magnetic circuit system 10.

[0081] Please refer to Figure 5. In one embodiment of this application, the vibration part 311 is spaced apart from the inner magnet 111 and the outer magnet 131.

[0082] In this embodiment, gaps are provided between the vibrating part 311 and the inner magnet 111 and the outer magnet 131 to avoid noise generated by the vibrating part 311 contacting and rubbing against the inner magnet 111 and the outer magnet 131 during the vibration process, thereby improving the sound production effect of the vibrating part 311.

[0083] Referring to Figures 1, 3 and 4, in one embodiment of this application, the speaker 100 further includes a mounting bracket 50 for connecting a plurality of inner magnets 111 and / or outer magnets 131.

[0084] The fixing frame 50, as its name suggests, is a frame that provides fixed support. This fixing frame 50 can be used to connect only multiple inner magnets 111, or only multiple outer magnets 131, or simultaneously connect multiple inner magnets 111 and multiple outer magnets 131. The fixing frame 50 can be an arc-shaped frame as described below, or it can include multiple column structures connected at the same end, with the other end connected to each inner magnet 111 or outer magnet 131. Therefore, this application does not limit the specific structure of the fixing frame 50, as long as it can connect and fix multiple inner magnets 111 and / or outer magnets 131.

[0085] In this embodiment, by setting the fixing frame 50, multiple inner magnets 111 and / or outer magnets 131 can be connected and assembled into a whole, which facilitates the subsequent one-time installation of this part of the structure on the speaker 100.

[0086] Referring to Figures 1 to 5, in one embodiment of this application, the fixing frame 50 is arc-shaped and disposed within the magnetic gap 15. Each vibration part 311 is provided with a clearance opening 314 at the position corresponding to the fixing frame 50. Multiple inner magnets 111 are connected to the side of the fixing frame 50 facing the inner magnets 111, and multiple outer magnets 131 are connected to the side of the fixing frame 50 facing the outer magnets 131.

[0087] In this embodiment, the fixing frame 50 is arc-shaped, meaning that on a projection plane parallel to the axial direction of the magnetic circuit system 10, the fixing frame 50 extends along the trajectory of the magnetic gap 11 in an arc shape. By setting the fixing frame 50 to an arc-shaped structure, it can adapt to the shape of the magnetic gap 15, facilitating its placement within the magnetic gap 15. Simultaneously, it allows for closer proximity of the multiple inner magnets 111 and multiple outer magnets 131, providing better connection points and improving the convenience of connecting and assembling the multiple inner magnets 111 and outer magnets 131 onto the fixing frame 50. The clearance openings 314 provided on the vibration section 311 can be used to provide spatial clearance for the fixing frame 50. Since the fixing frame 50 is arc-shaped, the positions of the clearance openings 314 on each vibration section 311 are also corresponding. Furthermore, the number of fixing frames 50 can be one, or two or more.

[0088] Please refer to Figure 4. In one embodiment of this application, the fixing frame 50 is provided with a plurality of first slots 51 on the side facing the inner magnet 111, and each inner magnet 111 is embedded in a first slot 51.

[0089] In this embodiment, the inner magnet 111 is installed and fixed by embedding it in the first slot 51 on the fixing frame 50. This simplifies the connection between the two, thus improving the ease of installation of the inner magnet 111 on the fixing frame 50. Furthermore, the first slot 51 provides a positioning function for the inner magnet 111, ensuring accurate installation of multiple inner magnets 111. This arrangement also improves the compactness of the distribution between the inner magnets 111 and the fixing frame 50, reducing the overall volume of this part. Further, the inner magnet 111 can be further bonded to the first slot 51 with adhesive to further improve the stability of the installation. Of course, in other embodiments, the inner magnet 111 can also be directly glued to the inner surface of the fixing frame 50.

[0090] Please refer to Figure 4. In one embodiment of this application, the fixing frame 50 is provided with a plurality of second slots 53 on the side facing the outer magnet 131, and each outer magnet 131 is embedded in a second slot 53.

[0091] In this embodiment, the outer magnet 131 is installed and fixed by embedding it in the second slot 53 on the fixing frame 50. This simplifies the connection between the two, thus improving the convenience of installing the outer magnet 131 on the fixing frame 50. Furthermore, the second slot 53 provides a positioning function for the installation of the outer magnet 131, ensuring accurate installation of multiple outer magnets 131. This arrangement also improves the compactness of the distribution between the outer magnet 131 and the fixing frame 50, reducing the overall volume of this part. Further, the outer magnet 131 can be further bonded to the second slot 53 with adhesive to further improve the stability of the installation. Of course, in other embodiments, the outer magnet 131 can also be directly glued to the outer surface of the fixing frame 50.

[0092] Referring to Figures 3 to 6, in one embodiment of this application, the fixing frame 50 includes an inner frame 55 and an outer frame 57, with the outer frame 57 disposed on the side of the inner frame 55 facing the outer magnet 131; a plurality of inner magnets 111 are connected to the inner frame 55, and a plurality of outer magnets 131 are connected to the outer frame 57; the diaphragm 31 also includes a first connecting portion 316, which is disposed between the inner frame 55 and the outer frame 57, and a plurality of vibrating portions 311 are connected to both sides of the first connecting portion 316 in the circumferential direction of the magnetic circuit system 10.

[0093] In this embodiment, the fixing frame 50 is configured as an inner frame 55 and an outer frame 57, which facilitates the placement of a first connecting portion 316 between the two. This first connecting portion 316 connects the vibrating portions 311 located on opposite sides of the clearance opening 314, allowing the multiple vibrating portions 311 to be connected as a whole, facilitating a one-time installation on the speaker 100. Furthermore, the first connecting portion 316 also provides a mounting position for the installation and fixation of the diaphragm 31. Simultaneously, it allows the diaphragm 31 to be installed, fixed, and vibrate / produce sound through the first connecting portion 316 and the vibrating portions 311 respectively, preventing the installation and fixation of the diaphragm 31 from affecting the vibration and sound production of the vibrating portions 311, thereby improving the vibration and sound production effect of the vibrating portions 311. The inner frame 55 may be provided with the first slot 51 described above, and the outer frame 57 may be provided with the second slot 53 described above. In addition, the first connecting part 316 can directly connect to multiple vibrating parts 311, or it can indirectly connect multiple vibrating parts 311 through the second connecting part 317 as described below.

[0094] Please refer to Figure 6. In one embodiment of this application, the diaphragm 31 further includes a plurality of second connecting portions 317. Each second connecting portion 317 is connected to the first diaphragm 312 and the second diaphragm 313 of two adjacent vibrating portions 311 on opposite sides. The inner surface of the first connecting portion 316 and the inner surface of the plurality of second connecting portions 317 are located on the same spherical surface. The outer surface of the first connecting portion 316 and the outer surface of the plurality of second connecting portions 317 are located on the same spherical surface. The first connecting portion 316 is connected to the plurality of second connecting portions 317 on both sides in the circumferential direction of the magnetic circuit system 10.

[0095] The second connecting portion 317 is used to connect two adjacent vibrating portions 311. When one side of the second connecting portion 317 is connected to the first diaphragm 312 in one vibrating portion 311, the other side is connected to the second diaphragm 313 in another adjacent vibrating portion 311. Moreover, the second connecting portion 317 can also be provided on the side of the first diaphragm 312 and the second diaphragm 313 near the inner magnet 111.

[0096] In this embodiment, the second connecting portion 317 can be well connected to the vibrating portion 311, thereby improving the convenience of connecting each vibrating portion 311. Simultaneously, since both the second connecting portion 317 and the first connecting portion 316 have arc-shaped structures and are located on the same spherical surface, the second connecting portion 317 and the first connecting portion 316 can also be well connected, further improving the convenience of connecting them. Furthermore, the provision of the second connecting portion 317 can facilitate the connection and arrangement of the voice coil 33 on the diaphragm 31. For example, the third segment 335 for connecting the first segment 331 on the first diaphragm 312 and the second segment 333 on the second diaphragm 313 of two adjacent vibrating portions 311 can be provided on the second connecting portion 317.

[0097] Referring to Figures 4 to 6, in one embodiment of this application, the diaphragm 31 further includes two third connecting portions 318, both of which extend in a ring shape along the circumferential direction of the magnetic circuit system 10. The axial direction of the magnetic circuit system 10 is defined as the up-down direction. One of the third connecting portions 318 is located above the uppermost inner magnet 111 and is connected to the upper end of the first connecting portion 316 and the first diaphragm 312 in the uppermost vibrating portion 311. The other third connecting portion 318 is located below the lowermost inner magnet 111 and is connected to the lower end of the first connecting portion 316 and the second diaphragm 313 in the lowermost vibrating portion 311.

[0098] In this embodiment, the two third connecting portions 318 further strengthen the connection between the upper vibrating portion 311 and the first connecting portion 316, as well as the lower vibrating portion 311 and the first connecting portion 316, thereby improving the overall strength of the diaphragm 31 and ensuring its stable placement. The thickness of the third connecting portion 318 can be greater than the thickness of other parts of the diaphragm 31 to enhance its strengthening effect.

[0099] Referring to Figures 1 to 3 and Figure 5, in one embodiment of this application, the speaker 100 further includes two cover plates 70, one cover plate 70 covering the uppermost outer magnet 131 and connected to the upper end of the upper third connecting portion 318 and the fixing bracket 50; the other cover plate 70 covering the lowermost outer magnet 131 and connected to the lower end of the lower third connecting portion 318 and the fixing bracket 50.

[0100] In this embodiment, the two cover plates 70 serve two purposes. First, they isolate the inner and outer spaces of the diaphragm 31, forming a rear acoustic cavity 71 around it, thus preventing sound short-circuiting and improving sound quality. Second, the cover plates 70 also provide support and limit the movement of the diaphragm 31 and the mounting frame 50. The upper cover plate 70 can be positioned above the uppermost outer magnet 131, or it can be partially or entirely positioned inside the uppermost outer magnet 131. Similarly, the lower cover plate 70 can be positioned below the lowermost outer magnet 131, or it can be partially or entirely positioned inside the lowermost outer magnet 131. Furthermore, the cover plates 70 can connect to the inner frame 55 and the outer frame 57 in the mounting frame 50, thus the third connecting portion 318 can also be located between the inner frame 55 and the outer frame 57.

[0101] Please refer to Figure 2. In one embodiment of this application, the speaker 100 further includes a support base 90, which is connected to the lower surface of the lower cover plate 70.

[0102] In this embodiment, a support base 90 is provided on a cover plate 70, so that the speaker 100 can be easily supported and placed through the support base 90, avoiding the diaphragm 31 from being squeezed by external objects and affecting the sound output of the speaker 100. The support base 90 can be any shape such as square, cylindrical or conical.

[0103] Referring to Figures 3 and 4, in one embodiment of this application, the number of fixing brackets 50 is at least two, and the at least two fixing brackets 50 are distributed at intervals along the circumferential direction of the magnetic circuit system 10.

[0104] In this embodiment, the arrangement of at least two fixing brackets 50 can improve the stability of the support for the inner magnet 111 and the outer magnet 131. The at least two fixing brackets 50 can be evenly spaced along the circumferential direction of the magnetic circuit system 10, so that the inner magnetic circuit 11 and the outer magnetic circuit 13 can be more uniformly positioned at various points in the circumferential direction.

[0105] In one embodiment of this application, the inner magnetic circuit 11 further includes an inner magnetic guide plate, which is disposed on the side of the inner magnet 111 facing the outer magnet 131.

[0106] In this embodiment, the inner magnetic plate guides the magnetic field generated by the inner magnet 111, concentrating it on the side facing the outer magnet 131. This enhances the magnetic field between the inner and outer magnets 111, allowing the voice coil 33 on the vibrating part 311 located between the inner and outer magnets 131 to effectively drive the vibrating part 311 after energization. The inner magnetic plate can also be ring-shaped, with its inner surface and outer surface of the inner magnet 111 aligned on the same spherical surface, further improving the fit between the inner magnetic plate and the inner magnet 111. Similarly, to guide the magnetic field generated by the outer magnet 131 towards the side facing the inner magnet 111, in one embodiment of this application, each outer magnet 131 also includes an outer magnetic plate located on the side of the outer magnet 131 facing the inner magnet 111. The outer magnetic plate can also be ring-shaped. The outer surface of the outer magnetic plate and the inner surface of the outer magnet 131 can be located on the same spherical surface, and the inner surface of the outer magnetic plate is also spherical, so as to improve the fitting effect between the outer magnetic plate and the outer magnet 131.

[0107] Please refer to Figure 5. In one embodiment of this application, the first diaphragm 312 and the second diaphragm 313 in the vibration section 311 are both perpendicular to the axial direction of the magnetic circuit system 10. The vibration section 311 also includes a third diaphragm 315, and the opposite sides of the third diaphragm 315 are respectively connected to the first diaphragm 312 and the second diaphragm 313.

[0108] In this embodiment, the first diaphragm 312 and the second diaphragm 313 are configured as flat plates perpendicular to the axial direction of the magnetic circuit system 10. This allows the shapes of the first diaphragm 312 and the second diaphragm 313 to be more regular, thereby improving the ease of their processing and forming. The third diaphragm 315 can be used to connect the first diaphragm 312 and the second diaphragm 313 so that they are arranged in parallel. In addition, the third diaphragm 315 is also used for the arrangement of the voice coil 33. For example, when the first diaphragm 312 is provided with a first segment 331 and the second diaphragm 313 is provided with a second segment 333, the third segment 335 used to connect the first segment 331 and the second segment 333 can be provided on the third diaphragm 315. The third diaphragm 315 can be arc-shaped as described below, or it can be flat.

[0109] Please refer to Figure 5. In one embodiment of this application, the third diaphragm 315 is disposed on the side of the first diaphragm 312 and the second diaphragm 313 near the external magnetic circuit 13.

[0110] In this embodiment, the third diaphragm 315 is positioned close to the external magnetic circuit 13, so that the first diaphragm 312 and the second diaphragm 313 can have better elasticity, so that they can vibrate and produce sound when driven by the voice coil 33 after being energized.

[0111] Please refer to Figure 5. In one embodiment of this application, the third diaphragm 315 has an arc-shaped structure, and the concave surface of the third diaphragm 315 is disposed facing the inner magnetic circuit 11.

[0112] In this embodiment, the third diaphragm 315 is configured as an arc-shaped structure with its concave arc surface facing the inner magnetic circuit 11. This increases the elasticity of the first diaphragm 312 and the second diaphragm 313, allowing them to be driven by the energized voice coil 33. Furthermore, when the voice coil 33 includes a first segment 331 and a second segment 333 respectively disposed on the first diaphragm 312 and the second diaphragm 313, as described below, and a third segment 335 connecting the first segment 331 and the second segment 333, the third segment 335 can smoothly pass through the third diaphragm 315. In other words, this improves the ease of arranging the voice coil 33 on the diaphragm 31.

[0113] Referring to Figures 7 to 9, in one embodiment of this application, the voice coil 33 includes a first segment 331, a second segment 333, and a third segment 335. The first segment 331 and the second segment 333 are respectively disposed on the first diaphragm 312 and the second diaphragm 313, and both extend along the circumferential direction of the magnetic circuit system 10. The third segment 335 connects the adjacent first segment 331 and second segment 333.

[0114] In this embodiment, the voice coil 33 is configured to include a first segment 331 disposed on the first diaphragm 312, a second segment 333 disposed on the second diaphragm 313, and a third segment 335 disposed on the third diaphragm 315 or the second connecting portion 317 described above (the third segment 335 disposed on the third diaphragm 315 is used to connect the first segment 331 on the first diaphragm 312 and the second segment 333 on the second diaphragm 313 in the same vibrating portion 311, while the third segment 335 disposed on the second connecting portion 317 is used to connect the first segment 331 on the first diaphragm 312 and the second segment 333 on the second diaphragm 313 in adjacent vibrating portions 311), so that the voice coil 33 can be continuously arranged on the diaphragm 31, thereby simplifying the number of voice coils 33 and improving the convenience of its installation.

[0115] In one embodiment of this application, the voice coil 33 is printed on the diaphragm 31.

[0116] In this embodiment, the voice coil 33 is printed on the diaphragm 31, which simplifies the arrangement of the voice coil 33. Furthermore, it allows the voice coil 33 and the diaphragm 31 to form an integrated structure, thereby improving the stability of the voice coil 33's arrangement on the diaphragm 31.

[0117] Please refer to Figure 7. In one embodiment of this application, the voice coil 33 is disposed on the outer side of the diaphragm 31.

[0118] In this embodiment, the voice coil 33 is positioned on the outer side of the diaphragm 31, allowing for greater maneuverability in arranging the voice coil 33 and thus improving the ease of mounting the voice coil 33 on the diaphragm 31. Of course, in other embodiments, it is also possible to position the voice coil 33 on the inner side of the diaphragm 31.

[0119] This application also proposes a sound-generating device, which includes a first loudspeaker. The specific structure of the first loudspeaker is as described in the above embodiments. Since this sound-generating device adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, and will not be described in detail here. The sound-generating device can be a speaker, or it can be a tablet, television, or mobile phone, etc. This application does not limit the specific type of sound-generating device, as long as it can be used to generate sound. Furthermore, the number of first loudspeakers can be one, or it can be two or more.

[0120] In one embodiment of this application, the sound-generating device further includes a housing, and a first speaker is disposed on the outside of the housing; the sound-generating device further includes a second speaker, which is a bass speaker, and the second speaker is disposed inside the housing, with a sound outlet provided on the housing corresponding to the position of the second speaker.

[0121] In this embodiment, a first speaker is used in conjunction with a second speaker. Since the first speaker operates in the mid-to-high frequency range, and the second speaker is a subwoofer, this allows the sound-producing device to adapt its sound output across various frequency bands using the corresponding first and second speakers, thereby improving the device's sound performance. The first speaker is positioned on the outside of the housing to avoid obstruction of the highly directional mid-to-high frequency sound emitted by the housing, allowing the first speaker to emit sound omnidirectionally in both the horizontal and vertical planes. The second speaker is positioned on the inside of the housing. Because low-frequency sounds have strong diffraction capabilities (i.e., lower directivity), the second speaker located inside the housing can emit sound effectively to its surroundings, while also improving the compactness of its mounting. The frequency band played by the second speaker can be set below 1kHz. Furthermore, with the sound-generating device in its normal installation and use state, the housing is defined to have a vertical direction. The first speaker can be located on the upper surface of the housing, and the axis of the first speaker can be parallel to the vertical direction, while the axis of the second speaker can be perpendicular to the vertical direction. On a projection plane perpendicular to the axis of the second speaker, the first and second speakers can be located on the center line of the housing in the vertical direction. This facilitates the first and second speakers to emit sound evenly around the circumference of the housing, further improving the consistency of the listening experience around the sound-generating device.

[0122] The above description is merely a preferred embodiment of this application and does not limit the patent scope of this application. Any equivalent structural transformations made based on the inventive concept of this application and the contents of the specification and drawings of this application, or direct / indirect applications in other related technical fields, are included within the patent protection scope of this application.

Claims

1. A loudspeaker, characterized in that, include: A magnetic circuit system, comprising an inner magnetic circuit and an outer magnetic circuit, the outer magnetic circuit and the inner magnetic circuit being spaced apart and enclosing a spherical magnetic gap; and a vibration system, comprising a diaphragm and a voice coil, the diaphragm being disposed within the magnetic gap, the diaphragm comprising a plurality of vibration portions spaced apart along the axial direction of the magnetic circuit system, the vibration portions extending along the circumferential direction of the magnetic circuit system, each vibration portion comprising a first diaphragm and a second diaphragm connected to each other and arranged opposite to each other in the axial direction of the magnetic circuit system, the voice coil being disposed on the plurality of vibration portions, the voice coil being used to drive the first diaphragm and the second diaphragm in each vibration portion to move closer or further apart when energized.

2. The loudspeaker as claimed in claim 1, characterized in that, The internal magnetic circuit includes multiple internal magnets, which are spaced apart along the axial direction of the magnetic circuit system. The internal magnets are arranged in a ring shape, with the inner surfaces of the multiple internal magnets located on the same spherical surface and the outer surfaces of the multiple internal magnets located on the same spherical surface.

3. The loudspeaker as described in claim 2, characterized in that, The external magnetic circuit includes multiple external magnets, which are spaced apart along the axial direction of the magnetic circuit system. The external magnets are arranged in a ring shape, with the inner surfaces of the multiple external magnets located on the same spherical surface and the outer surfaces of the multiple external magnets located on the same spherical surface. The magnetic poles of the external magnets and the inner magnets at their closest ends are arranged in opposite directions.

4. The loudspeaker as claimed in claim 3, characterized in that, Each of the vibrating parts corresponds to one of the inner magnets, and the gap formed by the enclosing of two adjacent outer magnets corresponds to one of the vibrating parts.

5. The loudspeaker as claimed in claim 4, characterized in that, The projection size of the inner magnet in the axial direction of the magnetic circuit system is greater than the projection size of the vibrating part in the axial direction of the magnetic circuit system; and / or, the projection size of the gap formed by the enclosed space of each two adjacent outer magnets in the axial direction of the magnetic circuit system is smaller than the projection size of the vibrating part in the axial direction of the magnetic circuit system; and / or, the vibrating part is spaced apart from both the inner magnet and the outer magnet.

6. The loudspeaker as claimed in claim 3, characterized in that, The speaker also includes a mounting bracket for connecting a plurality of the inner magnets and / or the outer magnets.

7. The loudspeaker as claimed in claim 6, characterized in that, The fixing frame is arc-shaped and is located within the magnetic gap. Each of the vibrating parts has a clearance opening at the position corresponding to the fixing frame. Multiple inner magnets are connected to the side of the fixing frame facing the inner magnets, and multiple outer magnets are connected to the side of the fixing frame facing the outer magnets.

8. The loudspeaker as claimed in claim 7, characterized in that, The fixing frame has multiple first slots on the side facing the inner magnet, and each inner magnet is embedded in one of the first slots; and / or, the fixing frame has multiple second slots on the side facing the outer magnet, and each outer magnet is embedded in one of the second slots.

9. The loudspeaker as claimed in claim 7, characterized in that, The fixing frame includes an inner frame and an outer frame, the outer frame being disposed on the side of the inner frame facing the outer magnet; a plurality of inner magnets are connected to the inner frame, and a plurality of outer magnets are connected to the outer frame; the diaphragm further includes a first connecting portion, the first connecting portion being disposed between the inner frame and the outer frame, and the first connecting portion is also connected to a plurality of vibrating portions on both sides of the magnetic circuit system in the circumferential direction.

10. The loudspeaker as claimed in claim 9, characterized in that, The diaphragm further includes a plurality of second connecting portions, each of which connects to the first diaphragm and the second diaphragm of two adjacent vibrating portions on opposite sides; the inner surface of the first connecting portion and the inner surfaces of the plurality of second connecting portions are located on the same spherical surface, the outer surface of the first connecting portion and the outer surfaces of the plurality of second connecting portions are located on the same spherical surface, and the first connecting portion connects to the plurality of second connecting portions on both sides in the circumferential direction of the magnetic circuit system.

11. The loudspeaker as claimed in claim 9, characterized in that, The diaphragm further includes two third connecting portions, both of which extend in a ring shape along the circumferential direction of the magnetic circuit system. The axial direction of the magnetic circuit system is defined as the up-down direction. One of the third connecting portions is located above the uppermost inner magnet and is connected to the upper end of the first connecting portion and the first diaphragm in the uppermost vibrating portion. The other third connecting portion is located below the lowermost inner magnet and is connected to the lower end of the first connecting portion and the second diaphragm in the lowermost vibrating portion.

12. The loudspeaker as claimed in claim 11, characterized in that, The speaker also includes two cover plates, one of which covers the uppermost outer magnet and is connected to the upper end of the upper third connecting part and the fixing frame; the other cover plate covers the lowermost outer magnet and is connected to the lower end of the lower third connecting part and the fixing frame.

13. The loudspeaker as claimed in claim 12, characterized in that, The speaker also includes a support base connected to the lower surface of the cover plate located below.

14. The loudspeaker as claimed in claim 7, characterized in that, The number of the fixing frames is at least two, and the at least two fixing frames are distributed at intervals along the circumferential direction of the magnetic circuit system.

15. The loudspeaker as claimed in claim 3, characterized in that, The inner magnetic circuit further includes an inner magnetic guide plate, which is disposed on the side of the inner magnet facing the outer magnet; and / or, the outer magnetic circuit further includes an outer magnetic guide plate, which is disposed on the side of the outer magnet facing the inner magnet.

16. The loudspeaker as claimed in any one of claims 1 to 15, characterized in that, The first diaphragm and the second diaphragm in the vibration section are both perpendicular to the axial direction of the magnetic circuit system. The vibration section also includes a third diaphragm, with the opposite sides of the third diaphragm connected to the first diaphragm and the second diaphragm, respectively.

17. The loudspeaker as claimed in claim 16, characterized in that, The third diaphragm is disposed on the side of the first diaphragm and the second diaphragm near the external magnetic circuit; and / or, the third diaphragm is an arc-shaped plate, and the concave surface of the third diaphragm is disposed facing the internal magnetic circuit.

18. The loudspeaker as claimed in any one of claims 1 to 15, characterized in that, The voice coil includes a first segment, a second segment, and a third segment. The first segment and the second segment are respectively disposed on the first diaphragm and the second diaphragm, and both extend along the circumferential direction of the magnetic circuit system. The third segment connects the adjacent first segment and the second segment. Alternatively, the voice coil is printed on the diaphragm. Alternatively, the voice coil is disposed on the outer side of the diaphragm.

19. A sound-generating device, characterized in that, Includes a first speaker, which is a speaker as described in any one of claims 1 to 18.

20. The sound-generating device as described in claim 19, characterized in that, The sound-generating device further includes a housing, and the first speaker is disposed on the outside of the housing; the sound-generating device further includes a second speaker, the second speaker being a woofer, the second speaker being disposed inside the housing, and the housing having a sound outlet corresponding to the position of the second speaker.

21. The sound-generating device as described in claim 20, characterized in that, The housing is defined to have a vertical direction, the first speaker is disposed on the upper surface of the housing, and the axis of the first speaker is parallel to the vertical direction, and the axis of the second speaker is perpendicular to the vertical direction; on a projection plane perpendicular to the axis of the second speaker, the first speaker and the second speaker are located on the center line of the housing in the vertical direction.

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