Speakers

Abstract

This utility model provides a speaker, comprising: a cabinet; a speaker mounted on the cabinet, the speaker including a cone, and a connection hole located on the outer periphery of the cone on the cabinet and / or the speaker; a grille disposed opposite to the speaker; and a connecting structure, one end of which is fixedly mounted on the grille. The connecting structure includes a limiting part made of elastic material, which passes through the connection hole and engages with it. A gap exists between the end of the connecting structure away from the grille and the bottom wall of the connection hole. A first limiting structure is disposed within the connection hole, engaging with the end face of the limiting part facing the bottom of the connection hole to prevent the connecting structure from contacting the bottom of the connection hole. This solution addresses the problem in the prior art where, during speaker playback, the bottom end of the connecting structure collides with the bottom of the connection hole under the vibration of the speaker, generating additional noise and affecting the speaker's sound quality.

Description

Technical Field

[0001] This utility model relates to the field of speaker technology, and more specifically, to a speaker. Background Technology

[0002] The speaker grille is not only an important part of beautifying the speaker's appearance, but also a crucial barrier protecting the internal speaker units from dust, foreign objects, and accidental impact damage. In traditional designs, the speaker grille is fixed in place by plugging it into the mounting holes on the speaker cabinet or speaker using a connecting structure.

[0003] However, after prolonged use, the connection between the connecting structure and the connecting hole may become loose. In particular, when the speaker is playing music, it generates strong vibrations. These vibrations can sometimes be transmitted to the connecting structure, causing the end of the connecting structure near the bottom of the connecting hole to collide with the bottom of the connecting hole, generating additional noise and affecting the sound quality of the speaker. Utility Model Content

[0004] This utility model provides a speaker to solve the problem in the prior art where, when the connection structure and the connection hole become loose, the bottom of the connection structure collides with the bottom of the connection hole under the vibration of the speaker, generating additional noise and affecting the sound quality of the speaker.

[0005] This utility model provides a speaker, comprising: a cabinet; a speaker disposed on the cabinet, the speaker including a cone, at least one of the cabinet and the speaker having a connection hole located on the outer periphery of the cone; a grille disposed opposite to the speaker; and a connecting structure, one end of the connecting structure being fixedly disposed on the grille, the connecting structure including a limiting part made of elastic material, the limiting part passing through the connecting hole and engaging with the connecting hole, a gap between the end of the connecting structure away from the grille and the bottom wall of the connecting hole, and a first limiting structure disposed within the connecting hole, the first limiting structure engaging with the end face of the limiting part facing the bottom of the connecting hole to prevent the connecting structure from contacting the bottom of the connecting hole.

[0006] Furthermore, the first limiting structure includes a first protrusion, which is disposed on the hole wall of the connecting hole, and the end face of the limiting part near the bottom of the connecting hole abuts against the end face of the first protrusion away from the bottom of the connecting hole.

[0007] Furthermore, the limiting part includes an annular cylinder, and the connecting structure also includes a connecting post. One end of the connecting post is fixedly mounted on the mesh cover, and the other end of the connecting post passes through the annular cylinder and is connected to the limiting part. The annular cylinder is inserted into the connecting hole.

[0008] Furthermore, the limiting part also includes an end plate, which is disposed at one end of the annular cylinder along the axial direction and is fixedly connected to the annular cylinder. The end plate is located at the bottom end of the connecting post near the connecting hole. The outer end face of the end plate is limited and engaged with the first limiting structure. The connecting structure also includes a fastener, the first end of which passes through the end plate and is detachably connected to the connecting post. The second end of the fastener is located outside the limiting part and has a gap between it and the bottom of the connecting hole.

[0009] Furthermore, the connecting column includes a first section, a transition section, and a second section connected sequentially along the axial direction. The outer diameter of the first section is larger than that of the transition section, and the outer diameter of the transition section is larger than that of the second section. The outer diameter of the transition section gradually decreases along the direction from the first section to the second section. The first section is a hollow structure, and the end of the first section away from the transition section is set on the mesh cover. The second section passes through the annular cylinder and is fixedly connected to the limiting part.

[0010] Furthermore, the connecting column and the mesh cover are integrally formed.

[0011] Furthermore, a second limiting structure is provided inside the connecting hole. The second limiting structure and the first limiting structure are distributed at intervals along the axial direction of the connecting hole. The second limiting structure is located on the side of the first limiting structure away from the bottom of the connecting hole. The second limiting structure is matched with the end face of the limiting part away from the bottom of the connecting hole to limit the movement of the connecting structure away from the bottom of the connecting hole.

[0012] Furthermore, the second limiting structure includes a second protrusion, which is disposed on the hole wall of the connecting hole, and the end face of the limiting part away from the bottom of the connecting hole abuts against the end face of the second protrusion near the bottom of the connecting hole.

[0013] Furthermore, the first protrusion includes a first protrusion, the second protrusion includes a second protrusion, and a connecting rib is also provided inside the connecting hole. The connecting rib is provided on the side wall of the connecting hole and extends along the axial direction of the connecting hole. The first protrusion is provided at one end of the connecting rib near the bottom of the connecting hole in the axial direction of the connecting rib, and the first protrusion protrudes the connecting rib in the axial direction of the connecting hole. The second protrusion is provided at one end of the connecting rib away from the bottom of the connecting hole in the axial direction of the connecting rib, and the second protrusion protrudes the connecting rib in the axial direction of the connecting hole.

[0014] Furthermore, the contour of the surface of the connecting rib facing the axis of the connecting hole is adapted to the contour of the peripheral surface of the limiting part.

[0015] Furthermore, the end face of the second protrusion away from the first protrusion has a guide surface, which is inclined relative to the axial direction of the connecting hole to form a flared structure.

[0016] Furthermore, the loudspeaker also includes a retaining ring, which is arranged in a ring around the outer periphery of the cone. The retaining ring is fixedly mounted on the cabinet, and the connecting hole is located on the retaining ring.

[0017] Furthermore, the fixing ring includes an integrally formed body and a connecting protrusion. The body is arranged in a ring around the outer periphery of the cone, and the connecting protrusion is located on the side of the body facing the cabinet. A connecting hole is located on the connecting protrusion. And / or, one side of the cabinet has a mounting cavity and a mounting groove. The mounting groove is arranged in a ring at the opening of the mounting cavity and communicates with the mounting cavity. The cone is located in the mounting cavity, and the fixing ring is arranged in a ring at the mounting groove.

[0018] Applying the technical solution of this utility model, a limiting part made of elastic material is inserted into and engages with the connecting hole. Furthermore, the first limiting structure restricts the movement of the connecting structure towards the bottom of the connecting hole by engaging with the end face of the limiting part facing the bottom of the connecting hole, preventing the connecting structure from contacting the bottom of the connecting hole. This ensures that the end of the connecting structure near the bottom of the connecting hole always maintains a gap with the bottom of the connecting hole. When the speaker plays music, the grille and connecting structure vibrate along with the speaker's vibration. The above arrangement prevents the end of the connecting structure near the bottom of the connecting hole from colliding with the bottom of the connecting hole, thereby reducing noise caused by the collision between the connecting structure and the connecting hole and improving the sound quality of the speaker. Attached Figure Description

[0019] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0020] Figure 1 A schematic diagram of the speaker provided by this utility model is shown;

[0021] Figure 2 An exploded structural diagram of the speaker provided by this utility model is shown;

[0022] Figure 3 It shows Figure 2 A partial structural diagram at point A in the middle;

[0023] Figure 4 A cross-sectional view of the speaker provided by this utility model is shown;

[0024] Figure 5 It shows Figure 4 A schematic diagram of the local structure at point B;

[0025] Figure 6 A partial structural schematic diagram of the fixing ring provided by this utility model is shown;

[0026] Figure 7 A schematic diagram of the structure of the fixing ring provided by this utility model is shown.

[0027] The above figures include the following reference numerals:

[0028] 10. Housing; 101. Mounting cavity; 102. Mounting slot;

[0029] 20. Sound basin;

[0030] 30. Connecting hole; 31. First limiting structure; 32. Second limiting structure; 321. Guide surface; 33. Connecting rib;

[0031] 40. Netting;

[0032] 50. Connection structure;

[0033] 51. Limiting part; 511. Annular cylinder; 512. End plate;

[0034] 52. Connecting column; 521. First section; 522. Transition section; 523. Second section;

[0035] 53. Fasteners;

[0036] 60. Retaining ring; 61. Body part; 62. Connecting protrusion. Detailed Implementation

[0037] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present utility model or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0038] like Figures 1 to 3As shown, this utility model embodiment provides a speaker, which includes a cabinet 10, a speaker, a grille 40, and a connecting structure 50. The speaker is mounted on the cabinet 10 and includes a cone 20. A connecting hole 30 is provided on the cabinet 10 and / or the speaker, located radially on the outer periphery of the cone 20. The grille 40 is disposed opposite to the speaker. One end of the connecting structure 50 is fixedly mounted on the grille 40. The connecting structure 50 includes a limiting part 51 made of elastic material, which passes through the connecting hole 30 and engages with it. The end of the connecting structure 50 away from the grille 40 is spaced from the bottom wall of the connecting hole 30. A first limiting structure 31 is provided within the connecting hole 30, and the first limiting structure 31 engages with the end face of the limiting part 51 facing the bottom of the connecting hole 30 to prevent the connecting structure 50 from contacting the bottom of the connecting hole 30.

[0039] Applying the technical solution of this utility model, the limiting part 51 made of elastic material passes through the connecting hole 30 and is inserted into the connecting hole. Furthermore, the first limiting structure 31 limits the movement of the connecting structure 50 towards the bottom of the connecting hole 30 by limiting the end face of the limiting part 51 facing the bottom of the connecting hole 30, preventing the connecting structure 50 from contacting the bottom of the connecting hole 30. This ensures that the end of the connecting structure 50 near the bottom of the connecting hole 30 always maintains a gap with the bottom of the connecting hole 30. When the speaker plays music, the grille 40 and the connecting structure 50 vibrate with the speaker under the vibration of the speaker. The above arrangement can prevent the end of the connecting structure 50 near the bottom of the connecting hole 30 from colliding with the bottom of the connecting hole 30, thereby reducing noise caused by the collision between the connecting structure 50 and the connecting hole 30 and improving the sound quality of the speaker.

[0040] Understandably, in this design, the limiting part 51, made of elastic material, is inserted into the connecting hole 30. The limiting part 51 has a certain deformation capacity and increases the friction between the limiting part 51 and the hole wall of the connecting hole 30. This arrangement can further improve the stability of the insertion between the limiting part 51 and the connecting hole 30. In addition, the limiting part 51 and the first limiting structure 31 also limit the noise generated when the limiting part 51 contacts the first limiting structure 31.

[0041] In this design, the first limiting structure 31 includes a first protrusion, which is disposed on the wall of the connecting hole 30. The first protrusion and the wall of the connecting hole 30 are integrally formed. The end face of the limiting part 51 near the bottom of the connecting hole 30 abuts against the end face of the first protrusion away from the bottom of the connecting hole 30. This design improves the ease of processing the first protrusion and enhances the stability of the connection between the first protrusion and the wall of the connecting hole 30.

[0042] Specifically, the limiting part 51 includes an annular cylinder 511, and the connecting structure 50 also includes a connecting post 52. One end of the connecting post 52 is fixedly mounted on the mesh cover 40, and the other end of the connecting post 52 passes through the annular cylinder 511 and connects to the limiting part 51. The annular cylinder 511 is inserted into the connecting hole 30. The hardness of the connecting post 52 is greater than that of the limiting part 51. This arrangement can improve the overall structural strength of the connecting structure 50.

[0043] In this embodiment, the connecting post 52 and the mesh cover 40 are integrally formed. This design improves the connection strength and stability between the connecting post 52 and the mesh cover 40.

[0044] In this embodiment, the mesh cover 40 and the connecting post 52 are formed by injection molding.

[0045] Furthermore, the limiting part 51 also includes an end plate 512, which is disposed at one end of the annular cylinder 511 along its axis and fixedly connected to the annular cylinder 511. The end plate 512 is located at the end of the connecting post 52 near the bottom of the connecting hole 30. The outer end face of the end plate 512 is engaged with the first limiting structure 31 for limiting. The connecting structure 50 also includes a fastener 53, the first end of which passes through the end plate 512 and is detachably connected to the connecting post 52. The second end of the fastener 53 is located outside the limiting part 51 and has a gap between it and the bottom of the connecting hole 30. This arrangement allows the limiting part 51 to be connected to the connecting post 52 via the fastener 53, which improves the stability of the connection between the limiting part 51 and the connecting post 52 and reduces the possibility of the connecting post 52 and the limiting part 51 separating from each other.

[0046] In this embodiment of the solution, the fastener 53 is a metal screw.

[0047] In this fastener, the shank of the fastening screw is the first end of the fastener 53, and the nut of the fastening screw is the second end of the fastener 53. Furthermore, the outer diameter of the nut of the fastening screw is smaller than the outer diameter of the end plate 512, and there is a gap between the nut of the fastening screw and the first limiting structure 31 in the radial direction of the connecting hole 30. This arrangement prevents the nut of the fastening screw from contacting the first limiting structure 31.

[0048] like Figure 4 and Figure 5As shown, the connecting column 52 further includes a first segment 521, a transition segment 522, and a second segment 523 connected sequentially along the axial direction. The outer diameter of the first segment 521 is larger than the outer diameter of the transition segment 522, and the outer diameter of the transition segment 522 is larger than the outer diameter of the second segment 523. The outer diameter of the transition segment 522 gradually decreases along the direction from the first segment 521 to the second segment 523. The first segment 521 is a hollow structure, and the end of the first segment 521 away from the transition segment 522 is disposed on the mesh cover 40. The second segment 523 passes through the annular cylinder 511 and is fixedly connected to the limiting part 51. This arrangement can improve the convenience of the injection molding process of the mesh cover 40 and the connecting column 52, and can improve the connection strength between the connecting column 52 and the mesh cover 40, as well as the structural strength of the connecting column 52 itself, while saving injection molding materials.

[0049] In this embodiment of the solution, the end face of the second segment 523 away from the transition segment 522 is provided with a threaded hole, which is threadedly engaged with the fastening screw.

[0050] Furthermore, a first reinforcing rib is provided on the outer wall at the connection point between the transition section 522 and the second section 523. The provision of the first reinforcing rib can improve the connection strength at the connection point between the transition section 522 and the second section 523, and improve the overall structural strength of the connecting column 52.

[0051] like Figure 3 and Figure 6 As shown, a second limiting structure 32 is further provided within the connecting hole 30. The second limiting structure 32 and the first limiting structure 31 are spaced apart along the axial direction of the connecting hole 30. The second limiting structure 32 is located on the side of the first limiting structure 31 away from the bottom of the connecting hole 30. The second limiting structure 32 engages with the end face of the limiting part 51 away from the bottom of the connecting hole 30 to limit the movement of the connecting structure 50 away from the bottom of the connecting hole 30. The combined action of the second limiting structure 32 and the first limiting structure 31 can restrict the limiting part 51 between the first limiting structure 31 and the second limiting structure 32 along the axial direction of the connecting hole 30, further improving the stability of the connecting structure 50 when inserted into the connecting hole 30.

[0052] Specifically, the second limiting structure 32 includes a second protrusion, which is disposed on the wall of the connecting hole 30. The end face of the limiting part 51 away from the bottom of the connecting hole 30 abuts against the end face of the second protrusion near the bottom of the connecting hole 30. The second protrusion and the wall of the connecting hole 30 are integrally formed. This configuration improves the ease of processing the second protrusion and enhances the stability of the connection between the second protrusion and the wall of the connecting hole 30.

[0053] This solution does not limit the specific shapes of the first and second protrusions.

[0054] In some embodiments of the solution, the first protrusion is arranged in a ring shape on the wall of the connecting hole 30 along the circumference of the connecting hole 30.

[0055] In some embodiments of this solution, the second protrusion is arranged in a ring shape on the wall of the connecting hole 30 along the circumference of the connecting hole 30.

[0056] In this embodiment, the first protrusion is a first bump, which can be understood as a block structure. Furthermore, multiple first bumps are provided, and these multiple first bumps are distributed at intervals along the circumference of the connecting hole 30.

[0057] The second protrusion, or second bump, can be understood as a block-shaped structure. Furthermore, multiple second protrusions are provided, distributed at intervals along the circumference of the connecting hole 30. This arrangement allows multiple second protrusions to make contact at multiple points along the circumference of the limiting part 51, improving the smoothness of the insertion of the limiting part 51 into the connecting hole 30.

[0058] To further improve the smoothness of the insertion of the limiting part 51 into the connecting hole 30, the end face of the second protrusion away from the first protrusion has a guide surface 321. The guide surface 321 is inclined relative to the axis of the connecting hole 30 to form a flared structure. The guide surface 321 provides guidance for the insertion of the limiting part 51 into the connecting hole 30, facilitating the insertion of the limiting part 51.

[0059] It is understandable that the flared structure refers to the fact that the distance between the guide surface 321 and the bottom of the connecting hole 30 gradually decreases along the direction from the side wall of the connecting hole 30 to the axis.

[0060] Furthermore, a plurality of connecting ribs 33 are provided on the sidewall of the connecting hole 30. These connecting ribs 33 are spaced apart circumferentially along the connecting hole 30, and each connecting rib 33 extends along the axial direction of the connecting hole 30. A first protrusion is located at the end of the connecting rib 33 near the bottom of the hole in the axial direction, protruding from the connecting rib 33 towards the axial direction. A second protrusion is located at the end of the connecting rib 33 away from the bottom of the hole in the axial direction, also protruding from the connecting rib 33 towards the axial direction. The connecting ribs 33 are integrally formed on the hole wall of the connecting hole 30, and the first and second protrusions are integrally formed and connected to their respective connecting ribs 33. This arrangement facilitates the processing and forming of the first and second protrusions.

[0061] In this embodiment, the contour of the surface of the connecting rib 33 facing the axis of the connecting hole 30 is adapted to the contour of the peripheral surface of the limiting part 51. This configuration can further improve the stability of the insertion of the limiting part 51 and the connecting hole 30, reduce the noise generated by the connection structure 50 colliding with the hole wall of the connecting hole 30 due to vibration, and improve the sound quality of the speaker.

[0062] It is understood that in this embodiment, the surface of the connecting rib 33 facing the axis of the connecting hole 30 is arc-shaped, and the contour of the surface of the connecting rib 33 facing the axis of the connecting hole 30 matches the contour of the circumferential surface of the annular cylinder 511. This configuration can improve the stability of the fit between the annular cylinder 511 and the connecting rib 33, and improve the stability of the insertion of the connecting structure 50.

[0063] In this design, multiple matching connection structures 50 and connection holes 30 are provided, and these multiple matching connection structures 50 and connection holes 30 are distributed at intervals along the circumference of the mesh cover 40. This arrangement can further improve the stability of the connection to the mesh cover 40.

[0064] like Figure 4 As shown in the embodiment of this solution, four interconnecting structures 50 and connecting holes 30 are provided.

[0065] In some embodiments of this solution, the connection hole 30 is provided on the housing 10.

[0066] like Figure 4 and Figure 7 As shown in the embodiment of this solution, the loudspeaker also includes a fixing ring 60, which is arranged in a ring around the outer periphery of the cone 20 and fixedly mounted on the enclosure 10. A connecting hole 30 is located on the fixing ring 60. The fixing ring 60 provides an additional support point for the loudspeaker, avoiding the instability that might result from a direct connection between the cone 20 and the enclosure 10. The connecting hole 30 is located on the fixing ring 60, facilitating the machining of its internal structure.

[0067] Specifically, the retaining ring 60 includes an integrally formed body portion 61 and a connecting protrusion 62. The body portion 61 is arranged in a ring around the outer periphery of the cone 20, and the connecting protrusion 62 is located on the side of the body portion 61 facing the enclosure 10. A connecting hole 30 is located on the connecting protrusion 62. This arrangement improves the stability of the connection between the body portion 61 and the connecting protrusion 62 and facilitates the machining of the connecting hole 30.

[0068] In this embodiment, a second reinforcing rib is provided on the side of the main body 61 facing the housing 10. The provision of the second reinforcing rib can further improve the structural strength and stability of the fixing ring 60. A third reinforcing rib is also provided on the outer wall of the connecting protrusion 62. The provision of the third reinforcing rib can further improve the structural strength of the connecting protrusion 62 and reduce the possibility of deformation of the connecting protrusion 62.

[0069] like Figure 2 and Figure 4 As shown, further, one side of the enclosure 10 has a mounting cavity 101 and a mounting groove 102. The mounting groove 102 is arranged in a ring at the opening of the mounting cavity 101 and communicates with the mounting cavity 101. The cone 20 is disposed in the mounting cavity 101, and the fixing ring 60 is arranged in a ring at the mounting groove 102. The body portion 61 of the fixing ring 60 is arranged in a ring at the mounting groove 102, and the bottom of the mounting groove 102 is also provided with a clearance groove. The end of the connecting protrusion 62 away from the body portion 61 passes through the clearance groove.

[0070] In this embodiment, the outer periphery of the main body 61 is roughly flush with the surface of the cabinet 10, which improves the aesthetics of the speaker.

[0071] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0072] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0073] In the description of this utility model, it should be understood that the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner and outer contours of each component itself.

[0074] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0075] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this utility model.

[0076] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A speaker, characterized in that, The speaker includes: Box (10); A loudspeaker is provided on the enclosure (10), the loudspeaker includes a cone (20), and the enclosure (10) and / or the loudspeaker are provided with a connection hole (30), the connection hole (30) being located on the outer periphery of the cone (20); A mesh cover (40) is disposed opposite to the speaker; A connecting structure (50) is provided, one end of which is fixedly disposed on the mesh cover (40). The connecting structure (50) includes a limiting part (51) made of elastic material. The limiting part (51) passes through the connecting hole (30) and is inserted into the connecting hole (30). There is a gap between the end of the connecting structure (50) away from the mesh cover (40) and the bottom wall of the connecting hole (30). A first limiting structure (31) is provided in the connecting hole (30). The first limiting structure (31) is limited and engaged with the end face of the limiting part (51) facing the bottom of the connecting hole (30) to prevent the connecting structure (50) from contacting the bottom of the connecting hole (30).

2. The speaker according to claim 1, characterized in that, The first limiting structure (31) includes a first protrusion, which is disposed on the hole wall of the connecting hole (30). The end face of the limiting part (51) near the bottom of the connecting hole (30) abuts against the end face of the first protrusion away from the bottom of the connecting hole (30).

3. The speaker according to claim 1, characterized in that, The limiting part (51) includes an annular cylinder (511), and the connecting structure (50) further includes a connecting post (52). One end of the connecting post (52) is fixedly disposed on the mesh cover (40), and the other end of the connecting post (52) passes through the annular cylinder (511) and is connected to the limiting part (51). The annular cylinder (511) is inserted into the connecting hole (30).

4. The speaker according to claim 3, characterized in that, The limiting part (51) further includes an end plate (512), which is disposed at one end of the annular cylinder (511) along the axial direction and is fixedly connected to the annular cylinder (511). The end plate (512) is located at the bottom end of the connecting post (52) near the bottom of the connecting hole (30). The outer end face of the end plate (512) is limited and engaged with the first limiting structure (31). The connecting structure (50) further includes a fastener (53), the first end of which passes through the end plate (512) and is detachably connected to the connecting post (52). The second end of the fastener (53) is located outside the limiting part (51) and has a gap between it and the bottom of the connecting hole (30).

5. The speaker according to claim 3, characterized in that, The connecting column (52) includes a first section (521), a transition section (522), and a second section (523) connected sequentially along the axial direction. The outer diameter of the first section (521) is larger than the outer diameter of the transition section (522), and the outer diameter of the transition section (522) is larger than the outer diameter of the second section (523). The outer diameter of the transition section (522) gradually decreases along the direction from the first section (521) to the second section (523). The first section (521) is a hollow structure. The end of the first section (521) away from the transition section (522) is set on the mesh cover (40). The second section (523) passes through the annular cylinder (511) and is fixedly connected to the limiting part (51).

6. The speaker according to claim 3, characterized in that, The connecting column (52) and the mesh cover (40) are integrally formed.

7. The speaker according to claim 2, characterized in that, A second limiting structure (32) is also provided inside the connecting hole (30). The second limiting structure (32) and the first limiting structure (31) are spaced apart along the axial direction of the connecting hole (30). The second limiting structure (32) is located on the side of the first limiting structure (31) away from the bottom of the connecting hole (30). The second limiting structure (32) is matched with the end face of the limiting part (51) away from the bottom of the connecting hole (30) to limit the movement of the connecting structure (50) away from the bottom of the connecting hole (30).

8. The speaker according to claim 7, characterized in that, The second limiting structure (32) includes a second protrusion, which is disposed on the hole wall of the connecting hole (30). The end face of the limiting part (51) away from the bottom of the connecting hole (30) abuts against the end face of the second protrusion near the bottom of the connecting hole (30).

9. The speaker according to claim 8, characterized in that, The first protrusion includes a first protrusion, the second protrusion includes a second protrusion, and a connecting rib (33) is also provided in the connecting hole (30). The connecting rib (33) is provided on the side wall of the connecting hole (30) and extends along the axial direction of the connecting hole (30). The first protrusion is provided at one end of the connecting rib (33) in the axial direction near the bottom of the connecting hole (30) and the first protrusion protrudes from the connecting rib (33) in the axial direction near the axial direction of the connecting hole (30). The second protrusion is provided at one end of the connecting rib (33) in the axial direction away from the bottom of the connecting hole (30) and the second protrusion protrudes from the connecting rib (33) in the axial direction near the axial direction of the connecting hole (30).

10. The speaker according to claim 9, characterized in that, The contour of the surface of the connecting rib (33) facing the axis of the connecting hole (30) is adapted to the contour of the peripheral surface of the limiting part (51).

11. The speaker according to claim 9, characterized in that, The end face of the second protrusion away from the first protrusion has a guide surface (321), which is inclined relative to the axial direction of the connecting hole (30) to form a flared structure.

12. The speaker according to claim 1, characterized in that, The loudspeaker also includes a fixing ring (60), which is arranged in a ring around the outer periphery of the cone (20). The fixing ring (60) is fixedly mounted on the enclosure (10), and the connecting hole (30) is provided on the fixing ring (60).

13. The speaker according to claim 12, characterized in that, The fixing ring (60) includes an integrally formed body portion (61) and a connecting protrusion (62). The body portion (61) is arranged in a ring around the outer periphery of the cone (20). The connecting protrusion (62) is located on the side of the body portion (61) facing the enclosure (10). The connecting hole (30) is located on the connecting protrusion (62); and / or, The enclosure (10) has a mounting cavity (101) and a mounting groove (102) on one side. The mounting groove (102) is arranged in a ring at the opening of the mounting cavity (101) and communicates with the mounting cavity (101). The cone (20) is located in the mounting cavity (101), and the fixing ring (60) is arranged in a ring at the mounting groove (102).

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