Loudspeaker

Abstract

The embodiment of the utility model discloses a loudspeaker, which is characterized in that a voice coil is arranged in a magnetic gap and is fixedly connected with a vibration part so as to drive the vibration part to move through the voice coil. Therefore, the fixed edge of the first flexible connecting part is fixedly connected with the outer side surface of the voice coil, so that the overall thickness of the loudspeaker can be reduced, and the loudspeaker can be arranged on the electronic equipment. In addition, the size of the voice coil in the axial direction can be increased, and the stress of the voice coil is optimized. And on the other hand, the two first contacts of the fixed plate are connected with the two leads, so that the plurality of voice coils can be electrically connected. Meanwhile, a plurality of coil bodies can be hung at the same time by utilizing the first flexible connecting part, and when a plurality of voice coils move, abnormal vibration can be inhibited and the sound quality of the loudspeaker can be optimized by utilizing the flexibility of the first flexible connecting part.

Description

Technical Field

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

[0002] Incorporating multiple voice coils in a loudspeaker can improve magnet utilization and enhance sound quality. However, with the increasing demand for thinner and lighter electronic devices, the requirements for loudspeaker thickness are also increasing. Therefore, how to reduce loudspeaker thickness and improve performance while simultaneously incorporating multiple voice coils has become a problem that needs to be solved. Utility Model Content

[0003] In view of this, the present invention provides a loudspeaker in which the first flexible connecting part is fixed to the side of multiple rings by multiple fixing edges, thereby reducing the thickness of the loudspeaker and improving its performance.

[0004] The loudspeaker in this embodiment of the utility model includes:

[0005] Vibrating part;

[0006] The magnetic circuit system has a magnetic gap;

[0007] Multiple voice coils are disposed in the magnetic gap and connected to the vibrating part; each voice coil includes a coil body and two leads; and

[0008] The first flexible connection includes multiple fixing plates, each fixing plate including a fixing edge and two first contact points;

[0009] The plurality of fixed edges are connected to the outer surfaces of the plurality of coils, and the two leads extend from the coils to the two first contacts.

[0010] Furthermore, the fixing edge has two clearance grooves corresponding to the two leads, and the clearance grooves face the outer side of the corresponding ring body;

[0011] The lead wire passes through the corresponding clearance groove and connects to the first contact point, and the fixing edge extends along the outer side of the ring body and is perpendicular to the axis of the ring body.

[0012] Furthermore, the fixing edge includes a first fixing segment and two second fixing segments in the length direction, and the two clearance grooves are located on both sides of the first fixing segment and between the two second fixing segments.

[0013] Furthermore, the first fixing segment extends along the arrangement direction of the plurality of rings, and the two second fixing segments bend and extend to the same side of the first fixing segment.

[0014] Furthermore, the first contact point is respectively disposed adjacent to the corresponding avoidance groove, and the avoidance groove bends toward the corresponding first contact point in the axial cross-sectional direction of the ring body.

[0015] Furthermore, the first flexible connection portion also includes at least one connecting arm extending along the arrangement direction of the plurality of rings, with both ends of the connecting arm connected to the two fixing plates respectively.

[0016] Furthermore, the first flexible connection portion also includes a reinforcing layer, at least a portion of which is disposed on one side of the connecting arm or simultaneously on both sides of the connecting arm.

[0017] Furthermore, the reinforcing layer is strip-shaped, and the reinforcing layer includes a first extension segment and two second extension segments in the length direction. The first extension segment is disposed on the connecting arm, and the two second extension segments extend from the connecting arm to the two fixing plates respectively.

[0018] Furthermore, the first contact point is located on the side of the fixing plate facing the vibrating part;

[0019] The lead wire includes a wire end and a connecting section. The wire end is electrically connected to the first contact, and the connecting section is bent from the wire end in a direction away from the vibrating part and is engaged in the clearance groove.

[0020] Furthermore, the fixing edge is positioned near the end of the ring body away from the vibrating part.

[0021] Furthermore, the first flexible connection includes two elastic arms and two mounting arms corresponding to the two elastic arms;

[0022] In the arrangement direction of the plurality of voice coils, the two elastic arms are respectively disposed corresponding to the two fixed plates located at both ends, and one end of the elastic arm is connected to the end of the corresponding fixed plate, and the other end is connected to the corresponding mounting arm.

[0023] Furthermore, the mounting arm has a second contact electrically connected to the first contact, the second contact facing outward of the speaker and located on the side of the first flexible connection opposite to the first contact.

[0024] Furthermore, the magnetic circuit system includes:

[0025] A magnetic section includes multiple magnets, wherein the multiple magnets include multiple first magnets corresponding to the multiple voice coils and at least one second magnet;

[0026] The magnetic conductor includes a frame and a base plate. The vibrating part and the mounting arm are connected to the frame. The frame, the first magnet and the second magnet are disposed on the base plate, and the voice coil is disposed around the corresponding first magnet. The second magnet is disposed between the two voice coils.

[0027] Furthermore, the plurality of magnets also includes two third magnets;

[0028] The magnetic conductive part further includes a plurality of magnetic conductive plates, which are attracted to the side of the first magnet or the second magnet away from the base plate;

[0029] The basin stand includes two magnetic blocks corresponding to the two third magnets. The two magnetic blocks are located on both sides of the plurality of magnets. The third magnet is attracted between the corresponding magnetic block and the base plate. The magnetic gap is formed between the magnetic block and the adjacent magnetic plate, as well as between two adjacent magnetic plates.

[0030] Furthermore, the speaker also includes:

[0031] The second flexible connection includes a plurality of fixing bodies corresponding to the plurality of said ring bodies, the edges of the fixing bodies being connected to the outer side of the ring bodies away from the fixing plate.

[0032] In this embodiment of the loudspeaker, the voice coil is disposed within a magnetic gap and fixedly connected to a vibrating part, so that the vibrating part moves through the voice coil. Therefore, by fixing the fixing edge of the first flexible connecting part to the outer surface of the voice coil, the overall thickness of the loudspeaker can be reduced, facilitating its placement in electronic devices. Furthermore, it increases the axial dimension of the voice coil, optimizing the stress on the voice coil. On the other hand, by connecting the two first contacts of the fixing plate to two leads, multiple voice coils can be electrically connected separately. Simultaneously, multiple voice coils can be suspended simultaneously using the first flexible connecting part. When multiple voice coils move, the flexibility of the first flexible connecting part suppresses abnormal vibrations, optimizing the sound quality of the loudspeaker. Attached Figure Description

[0033] The above and other objects, features, and advantages of the present invention will become clearer from the following description of embodiments of the present invention with reference to the accompanying drawings, in which:

[0034] Figure 1 This is a structural schematic diagram of one side of the speaker according to an embodiment of the present invention;

[0035] Figure 2 This is a schematic diagram of the structure of the other side of the speaker in this embodiment of the present invention;

[0036] Figure 3 This is an exploded schematic diagram of the loudspeaker according to an embodiment of the present invention;

[0037] Figure 4 This is a schematic diagram of the magnetic circuit system, the first flexible connection part, the second flexible connection part, and one side of the voice coil according to an embodiment of the present invention;

[0038] Figure 5 This is a schematic diagram of the magnetic circuit system, the first flexible connection part, the second flexible connection part, and the other side of the voice coil according to an embodiment of the present invention;

[0039] Figure 6 This is a structural schematic diagram of the first flexible connecting part, the second flexible connecting part, and one side of the voice coil according to an embodiment of the present utility model;

[0040] Figure 7 This is a schematic diagram of the first flexible connecting part, the second flexible connecting part, and the other side of the voice coil in an embodiment of the present invention;

[0041] Figure 8 This is an exploded view of the first flexible connection portion according to an embodiment of the present invention;

[0042] Figure 9 This is a schematic diagram of the structure of the first flexible connection part according to an embodiment of the present utility model.

[0043] Explanation of reference numerals in the attached figures:

[0044] 1-First flexible connection part;

[0045] 11-Fixing plate; 111-Fixing edge; 1111-First fixing section; 1112-Second fixing section; 112-First contact point; 113-Avoidance groove;

[0046] 12-Connecting arm;

[0047] 13-Elastic arm;

[0048] 14-Mounting arm; 141-Second contact;

[0049] 2-Voice coil;

[0050] 21-Circle body; 22-Lead wire; 221-Wire end; 222-Connecting section;

[0051] 3-Magnetic circuit system; 31-Magnetic gap;

[0052] 32-Magnetic section;

[0053] 321 - First magnet; 322 - Second magnet; 323 - Third magnet;

[0054] 33 - Magnetic Conducting Part;

[0055] 331-Sink stand; 332-Base plate; 333-Magnetic guide block; 334-Magnetic guide plate;

[0056] 4-Vibrating part; 41-Central diaphragm; 42-Edge diaphragm;

[0057] 5-Reinforcing layer; 51-First extension segment; 52-Second extension segment;

[0058] 6-Second flexible connection part; 61-Fixing body. Detailed Implementation

[0059] The present invention will now be described based on embodiments, but it is not limited to these embodiments. In the following detailed description of the present invention, certain specific details are described in detail. Those skilled in the art will fully understand the present invention even without these details. To avoid obscuring the essence of the present invention, well-known methods, processes, flows, elements, and circuits are not described in detail.

[0060] Furthermore, those skilled in the art should understand that the accompanying drawings provided herein are for illustrative purposes only and are not necessarily drawn to scale.

[0061] Unless the context explicitly requires it, words such as "including" or "contains" throughout the application should be interpreted as including rather than exclusive or exhaustive; that is, meaning "including but not limited to".

[0062] In the description of this utility model, it should be understood that the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Furthermore, in the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0063] Unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., 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 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, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0064] For ease of explanation, spatially related terms such as “inside,” “outside,” “below,” “below,” “lower,” “above,” “upper,” etc., are used herein to describe the relationship between one element or feature illustrated in the figure and another. It will be understood that spatially related terms may be intended to encompass different orientations of the device in use or operation besides those depicted in the figure. For example, if the device in the figure is flipped, an element described as “below” or “below” another element or feature would then be positioned “above” that other element or feature. Thus, the exemplified term “below” can encompass both above and below orientations. The device may be oriented in other ways (rotated 90 degrees or in other orientations), and the spatially related descriptive terms used herein should be interpreted accordingly.

[0065] Figure 1 and Figure 2 This is a schematic diagram of the speaker structure in this embodiment.

[0066] In some implementations, such as Figures 1-2 As shown, the speaker in this embodiment includes a first flexible connecting part 1, a second flexible connecting part 6, a magnetic circuit system 3, and a vibrating part 4. When the vibrating part 4 vibrates, it can generate sound waves. This speaker can be applied to electronic devices. The electronic device can be a mobile phone, laptop computer, or tablet computer, etc.

[0067] Figure 3 This is a schematic diagram of the explosion of the speaker in this embodiment. Figure 4 and Figure 5 This is a schematic diagram of the structure of the magnetic circuit system 3, the first flexible connection part 1, the second flexible connection part 6 and the voice coil 2 in this embodiment. Figure 6 and Figure 7 This is a schematic diagram of the structure of the first flexible connecting part 1, the second flexible connecting part 6, and the voice coil 2 in this embodiment.

[0068] In some implementations, such as Figures 2-4 As shown, the magnetic circuit system 3 in this embodiment has a magnetic gap 31. Multiple voice coils 2 are disposed in the magnetic gap 31 and connected to the vibrating part 4. The voice coil 2 includes a coil body 21 and two leads 22.

[0069] Specifically, the voice coil 2 includes a conductor with an insulating layer and a copper core. The conductor includes a wound section and extended sections at both ends of the wound section. The wound section is wound in a spiral to form a coil body 21, and the two extended ends extend from the coil body 21 to form lead wires 22.

[0070] Further reference Figures 5-7As shown, the first flexible connection part 1 includes multiple fixing plates 11, each fixing plate 11 including a fixing edge 111 and two first contacts 112. The multiple fixing edges 111 are correspondingly connected to the outer surfaces of multiple ring bodies 21, and two leads 22 extend from the ring body 21 to the two first contacts 112 respectively.

[0071] Specifically, such as Figure 6 As shown, the ring body 21 has inner and outer surfaces that face away from each other, with the inner surface facing the center of the ring body 21 and the outer surface facing the outside of the ring body 21. Fixing the fixing edge 111 to the outer surface can reduce the size of the speaker in the axial direction of the ring body 21, making the overall speaker more flat.

[0072] Specifically, the first flexible connection 1 includes an electrical path, which is connected by a first contact 112 and a second contact 141. An external control circuit of the speaker can be connected to the second contact 141, thereby achieving an electrical connection between the control circuit and the voice coil 2 through the first flexible connection 1. Simultaneously, the first flexible connection 1 is flexible; during the movement of the voice coil 2, the first flexible connection 1 deforms, which optimizes the movement of the voice coil 2 and improves the sound quality of the speaker. This first flexible connection 1 can be a flexible printed circuit board.

[0073] Optionally, the fixing edge 111 can be fixed to the outer surface of the ring body 21 by an adhesive (e.g., AB glue). Figure 3 As shown, the vibrating part 4 includes a central diaphragm 41 and an edge diaphragm 42. The edge of the central diaphragm 41 is connected to the central hole of the edge diaphragm 42. The upper end face of the ring body 21 is connected to the central diaphragm 41.

[0074] In summary, in this embodiment, the speaker places the voice coil 2 within the magnetic gap 31 and fixes it to the vibrating part 4, thereby driving the vibrating part 4 to move via the voice coil 2. Thus, fixing the fixing edge 111 of the first flexible connecting part 1 to the outer surface of the voice coil 2 reduces the overall thickness of the speaker, facilitating its placement on electronic devices. Furthermore, it increases the axial dimension of the voice coil 2, optimizing the stress on it. On the other hand, by connecting the two first contacts 112 of the fixing plate 11 to the two leads 22, multiple voice coils 2 can be electrically connected. Simultaneously, the first flexible connecting part 1 can suspend multiple coil bodies 21 simultaneously. When multiple voice coils 2 move, the flexibility of the first flexible connecting part 1 suppresses abnormal vibrations, optimizing the speaker's sound quality.

[0075] In some implementations, such as Figures 4-7As shown, the fixing edge 111 has two clearance grooves 113 corresponding to the two leads 22, with the clearance grooves 113 facing the outer surface of the corresponding ring body 21. The leads 22 pass through the corresponding clearance grooves 113 and connect to the first contact point 112. The fixing edge 111 extends along the outer surface of the ring body 21 and is perpendicular to the axis of the ring body 21. In this embodiment, the shape of the fixing edge 111 is consistent with the shape of the outer surface of the ring body 21, which can increase the contact area between the fixing edge 111 and the ring body 21, making the connection between the ring body 21 and the fixing edge 111 more stable. The clearance grooves 113 can prevent the fixing edge 111 and the leads 22 from interfering with each other.

[0076] Figure 8 This is an exploded view of the first flexible connection part 1 in this embodiment. Figure 9 This is a schematic diagram of the structure of the first flexible connection part 1 in this embodiment. Figure 9 The outline of reinforcement layer 5 to the left of the vertical dashed line is shown with a thick solid line, while other areas are shown with dashed lines. Reinforcement layer 5 is not shown to the right of the vertical dashed line.

[0077] In some implementations, such as Figures 8-9 As shown, the fixed edge 111 includes a first fixed section 1111 and two second fixed sections 1112 in the length direction. Two clearance grooves 113 are located on both sides of the first fixed section 1111 and between the two second fixed sections 1112. That is, the two clearance grooves 113 are formed by the fixed edge 111 recessed away from the coil body 21, and both clearance grooves 113 are located between the first fixed section 1111 and the second fixed section 1112. Thus, when the fixed edge 111 is connected to the coil body 21, the lead wire 22 can be clamped between the clearance groove 113 and the coil body 21. This prevents the lead wire 22 from swinging horizontally during the reciprocating movement of the voice coil 2, thus avoiding any impact on it. It also prevents the voice coil 2 from transmitting the Ampere force to the connection position between the lead wire 22 and the first contact 112.

[0078] In some implementations, such as Figure 6 and Figure 9 As shown, the first fixing segment 1111 extends along the arrangement direction of the plurality of rings 21, and the two second fixing segments 1112 bend and extend to the same side of the first fixing segment 1111. In this embodiment, the second fixing segments 1112 increase the contact area between the fixing edge 111 and the ring 21, thereby improving the connection strength between the first flexible connecting part 1 and the ring 21.

[0079] In some implementations, such as Figure 6As shown, the first contact 112 is disposed adjacent to the corresponding relief groove 113. In the axial cross-sectional direction of the coil body 21, the relief groove 113 bends toward the corresponding first contact 112. Thus, when the lead wire 22 extends out of the relief groove 113, it can be directly connected to the second contact 141, which facilitates the electrical connection between the lead wire 22 and the first flexible connection part 1.

[0080] In some implementations, such as Figure 6 As shown, the first flexible connecting part 1 also includes at least one connecting arm 12 extending along the arrangement direction of the plurality of rings 21, and the two ends of the connecting arm 12 are respectively connected to two fixing plates 11.

[0081] Specifically, there are two voice coils 2 and one connecting arm 12. The connecting arm 12 enables the two fixed plates 11 to move synchronously, thereby ensuring the consistency of the movement of the two voice coils 2 and improving the sound quality of the speaker.

[0082] In some implementations, such as Figures 7-8 As shown, the first flexible connection 1 also includes a reinforcing layer 5. At least a portion of the reinforcing layer 5 is disposed on one side of the connecting arm 12 or simultaneously on both sides of the connecting arm 12.

[0083] Optionally, the reinforcing layer 5 can be a polyimide film or a metal coating. Thus, the reinforcing layer 5 can increase the mechanical structure of the connecting arm 12, especially its bending stiffness, further reduce the inconsistency in the movement of the two fixed plates 11, suppress rolling vibration and high-frequency segmented vibration amplitude, and ensure high-frequency transient response performance.

[0084] In some implementations, such as Figure 9 As shown, the reinforcing layer 5 is strip-shaped. The reinforcing layer 5 includes a first extension section 51 and two second extension sections 52 in the length direction. The first extension section 51 is arranged on the connecting arm 12, and the two second extension sections 52 extend from the connecting arm 12 to the two fixing plates 11 respectively.

[0085] Preferably, the ends of the two second extension segments 52 extend to the two second fixed segments 1112 respectively. Thus, the strength of the fixed edge 111 is increased by the reinforcing layer 5, the tilting amplitude of the fixed plate 11 is reduced, and the movement of the multiple rings 21 is more stable.

[0086] In some implementations, such as Figure 3 , Figure 4 and Figure 8As shown, the first contact 112 is located on the side of the fixing plate 11 facing the vibrating part 4. The lead wire 22 includes a wire end 221 and a connecting section 222. The wire end 221 is electrically connected to the first contact 112, and the connecting section 222 is bent from the wire end 221 away from the vibrating part 4 and locked in the clearance groove 113. In this embodiment, locking the connecting section 222 in the clearance groove 113 can ensure the stability of the connection between the wire end 221 and the first contact 112 and prevent the wire end 221 from loosening during use.

[0087] In some implementations, such as Figures 4-5 As shown, the fixing edge 111 is provided near the end of the ring body 21 that is away from the vibrating part 4. This frees up more space in the connection area between the ring body 21 and the vibrating part 4.

[0088] In some implementations, such as Figures 6-7 As shown, the first flexible connection part 1 includes two elastic arms 13 and two mounting arms 14 corresponding to the two elastic arms 13. In the arrangement direction of the plurality of voice coils 2, the two elastic arms 13 are respectively disposed corresponding to the two fixing plates 11 located at both ends, and one end of the elastic arm 13 is connected to the end of the corresponding fixing plate 11, and the other end is connected to the corresponding mounting arm 14. In this embodiment, the elastic arms 13 are used to generate elastic deformation during the movement of the voice coils 2. The mounting arms 14 are used to be disposed on the frame 331 so that the voice coils 2 can be hung on the frame 331.

[0089] Furthermore, the mounting arm 14 has a second contact 141 electrically connected to the first contact 112, the second contact 141 facing outwards from the speaker and located on the side of the first flexible connection portion 1 opposite to the first contact 112. Further referring to... Figure 3 As shown, the mounting arm 14 can be fixedly connected to the frame 331 first. Then, the ring 21 is fixedly connected to the fixing edge 111, and the wire end 221 is connected to the first contact 112. In this configuration, the second contact 141 facing the bottom of the speaker can be easily connected to the control circuit.

[0090] In some implementations, such as Figures 3-7As shown, the magnetic circuit system 3 includes a magnetic part 32 and a magnetically conductive part 33. The magnetic part 32 includes multiple magnets, including multiple first magnets 321 corresponding to multiple voice coils 2 and at least one second magnet 322. The magnetically conductive part 33 includes a frame 331 and a base plate 332. The vibrating part 4 and the mounting arm 14 are connected to the frame 331. The frame 331, the first magnets 321 and the second magnets 322 are disposed on the base plate 332, and the coil body 21 is disposed around the corresponding first magnet 321. The second magnet 322 is disposed between two voice coils 2. In this embodiment, the second magnet 322 located between two voice coils 2 can simultaneously provide magnetic force to two adjacent voice coils 2, and the first magnet 321 can provide magnetic force to the corresponding voice coil 2 individually, so that the magnetic force of each voice coil 2 is consistent.

[0091] In some implementations, such as Figure 3 As shown, the multiple magnets also include two third magnets 323. Further referencing... Figures 4-7 As shown, the magnetically conductive part 33 also includes multiple magnetically conductive plates 334, which are attracted to the side of the first magnet 321 or the second magnet 322 away from the base plate 332. The basin frame 331 includes two magnetically conductive blocks 333 corresponding to the two third magnets 323. The two magnetically conductive blocks 333 are located on both sides of the multiple magnets. The third magnets 323 are attracted between the corresponding magnetically conductive blocks 333 and the base plate 332. Magnetic gaps 31 are formed between the magnetically conductive blocks 333 and adjacent magnetically conductive plates 334, as well as between two adjacent magnetically conductive plates 334. In this embodiment, the magnetically conductive plates 334 and magnetically conductive blocks 333 are used to concentrate the magnetism, resulting in a stronger magnetic field and a more uniform distribution of magnetic lines of force in the magnetic gaps 31.

[0092] In some implementations, such as Figures 5-7 As shown, the speaker also includes a second flexible connection portion 6. The second flexible connection portion 6 includes a plurality of fixing bodies 61 corresponding to a plurality of coils 21, and the edges of the fixing bodies 61 are connected to the outer side of the coils 21 away from the fixing plate 11.

[0093] Optionally, the second flexible connection portion 6 includes a connecting arm 12, an elastic arm 13, and a mounting arm 14 that are similar in flexibility and shape to the first flexible connection portion 1. The shape of the fixing body 61 is also consistent with that of the fixing plate 11. That is, the first flexible connection portion 1 and the second flexible connection portion 6 are symmetrically arranged to ensure that the deformation ranges of the first flexible connection portion 1 and the second flexible connection portion 6 are consistent. For example, the second flexible connection portion 6 can also be a flexible circuit board, or other flexible boards without electrical properties.

[0094] The above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principle of this utility model should be included within the protection scope of this utility model.

Claims

1. A loudspeaker, characterized in that, The loudspeaker includes: Vibrating part (4); The magnetic circuit system (3) has a magnetic gap (31); Multiple voice coils (2) are disposed in the magnetic gap (31) and connected to the vibrating part (4). Each voice coil (2) includes a coil body (21) and two leads (22). The first flexible connection part (1) includes a plurality of fixing plates (11), wherein the fixing plate (11) includes a fixing edge (111) and two first contacts (112); The plurality of fixed edges (111) are connected to the outer surfaces of the plurality of coils (21), and the two leads (22) extend from the coils (21) to the two first contacts (112).

2. The loudspeaker according to claim 1, characterized in that, The fixing edge (111) has two clearance grooves (113) corresponding to the two leads (22), and the clearance grooves (113) face the outer side of the corresponding ring body (21); The lead wire (22) passes through the corresponding clearance groove (113) and is connected to the first contact point (112). The fixing edge (111) extends along the outer side of the ring body (21) and is perpendicular to the axis of the ring body (21).

3. The loudspeaker according to claim 2, characterized in that, The fixing edge (111) includes a first fixing segment (1111) and two second fixing segments (1112) in the length direction. The two clearance grooves (113) are located on both sides of the first fixing segment (1111) and between the two second fixing segments (1112).

4. The loudspeaker according to claim 3, characterized in that, The first fixed segment (1111) extends along the arrangement direction of the plurality of rings (21), and the two second fixed segments (1112) bend and extend to the same side of the first fixed segment (1111).

5. The loudspeaker according to claim 3, characterized in that, The first contact point (112) is respectively arranged adjacent to the corresponding avoidance groove (113). In the axial cross-sectional direction of the ring body (21), the avoidance groove (113) bends toward the corresponding first contact point (112).

6. The loudspeaker according to claim 3, characterized in that, The first flexible connecting part (1) further includes at least one connecting arm (12) extending along the arrangement direction of the plurality of rings (21), and the two ends of the connecting arm (12) are respectively connected to the two fixing plates (11).

7. The loudspeaker according to claim 6, characterized in that, The first flexible connection part (1) further includes a reinforcing layer (5), at least part of which is disposed on one side of the connecting arm (12) or simultaneously on both sides of the connecting arm (12).

8. The loudspeaker according to claim 7, characterized in that, The reinforcing layer (5) is strip-shaped and includes a first extension section (51) and two second extension sections (52) in the length direction. The first extension section (51) is disposed on the connecting arm (12), and the two second extension sections (52) extend from the connecting arm (12) to the two fixing plates (11) respectively.

9. The loudspeaker according to claim 2, characterized in that, The first contact point (112) is located on the side of the fixing plate (11) facing the vibrating part (4); The lead wire (22) includes a wire end (221) and a connecting section (222). The wire end (221) is electrically connected to the first contact (112). The connecting section (222) is bent from the wire end (221) away from the vibrating part (4) and is engaged in the clearance groove (113).

10. The loudspeaker according to claim 9, characterized in that, The fixed edge (111) is located near the end of the ring body (21) away from the vibrating part (4).

11. The loudspeaker according to claim 3, characterized in that, The first flexible connection part (1) includes two elastic arms (13) and two mounting arms (14) corresponding to the two elastic arms (13); In the arrangement direction of the plurality of voice coils (2), the two elastic arms (13) are respectively arranged corresponding to the two fixing plates (11) located at both ends, and one end of the elastic arm (13) is connected to the end of the corresponding fixing plate (11), and the other end is connected to the corresponding mounting arm (14).

12. The loudspeaker according to claim 11, characterized in that, The mounting arm (14) has a second contact (141) electrically connected to the first contact (112), the second contact (141) facing outward of the speaker and located on the side of the first flexible connection (1) away from the first contact (112).

13. The loudspeaker according to claim 11, characterized in that, The magnetic circuit system (3) includes: The magnetic part (32) includes a plurality of magnets, the plurality of magnets including a plurality of first magnets (321) corresponding to the plurality of voice coils (2) and at least one second magnet (322); The magnetic conductor (33) includes a frame (331) and a base plate (332). The vibrating part (4) and the mounting arm (14) are connected to the frame (331). The frame (331), the first magnet (321) and the second magnet (322) are disposed on the base plate (332). The coil (21) is disposed around the corresponding first magnet (321). The second magnet (322) is disposed between the two voice coils (2).

14. The loudspeaker according to claim 13, characterized in that, The plurality of magnets also includes two third magnets (323); The magnetic conductive part (33) further includes a plurality of magnetic conductive plates (334), which are attracted to the side of the first magnet (321) or the second magnet (322) away from the base plate (332); The basin stand (331) includes two magnetic blocks (333) corresponding to the two third magnets (323). The two magnetic blocks (333) are located on both sides of the plurality of magnets. The third magnet (323) is attracted between the corresponding magnetic block (333) and the base plate (332). The magnetic block (333) forms the magnetic gap (31) between itself and the adjacent magnetic plate (334) and between two adjacent magnetic plates (334).

15. The loudspeaker according to any one of claims 1-14, characterized in that, The speaker also includes: The second flexible connection part (6) includes a plurality of fixing bodies (61) corresponding to the plurality of ring bodies (21), the edges of the fixing bodies (61) being connected to the outer side of the ring body (21) away from the fixing plate (11).

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