Speaker grille and door structure

Abstract

The application discloses a loudspeaker cover and a door structure. The loudspeaker cover comprises a first mesh cover with a first surface and a second surface opposite along the axial direction of the loudspeaker cover, and an outer peripheral edge of the second surface of the first mesh cover is provided with a first annular protrusion extending along the axial direction of the loudspeaker cover; a second mesh cover in the shape of a ring has a third surface and a fourth surface opposite along the axial direction of the loudspeaker cover; the third surface is an outward convex curved surface; the shape of an inner peripheral edge of the second mesh cover is the same as that of the outer peripheral edge of the first mesh cover; an outer peripheral edge of the fourth surface of the second mesh cover is provided with a second annular protrusion extending along the axial direction of the loudspeaker cover; and the first annular protrusion is fixedly connected with the inner peripheral edge of the second mesh cover. The loudspeaker cover and the door structure disclosed by the application can increase the selectivity of the loudspeaker cover design and improve the adaptability of the loudspeaker cover to different application scenarios.

Description

Technical Field

[0001] This application relates to the field of loudspeaker technology, and more particularly to a loudspeaker grille and a car door structure. Background Technology

[0002] Vehicle speakers are typically located inside the vehicle doors, with speaker grilles mounted on the door panels. These grilles are usually made of metal to protect the internal structure. However, metal speaker grilles limit the design options for both the door panels and the speaker grilles themselves. Summary of the Invention

[0003] This application provides a speaker grille and a door structure that can increase the design options for the speaker grille and improve its adaptability to different application scenarios.

[0004] In a first aspect, embodiments of this application provide a speaker grille, comprising: a first mesh cover having a first surface and a second surface opposite to each other along the axial direction of the speaker grille, wherein the outer peripheral edge of the second surface of the first mesh cover is provided with a first annular protrusion extending along the axial direction of the speaker grille; a second mesh cover in the form of an annular shape having a third surface and a fourth surface opposite to each other along the axial direction of the speaker grille; the third surface being an outwardly convex curved surface; the shape of the inner peripheral edge of the second mesh cover being the same as the shape of the outer peripheral edge of the first mesh cover; the outer peripheral edge of the fourth surface of the second mesh cover being provided with a second annular protrusion extending along the axial direction of the speaker grille; and the first annular protrusion being fixedly connected to the inner peripheral edge of the second mesh cover.

[0005] According to an embodiment of the first aspect of this application, the first mesh cover includes at least one first hollow portion, which extends from a first surface to a second surface; the second mesh cover includes at least one second hollow portion, which extends from a third surface to a fourth surface; the orthographic projections of at least one first hollow portion on the first surface and at least one second hollow portion on the first surface have different shapes.

[0006] According to an embodiment of the first aspect of this application, along the direction from the inner peripheral edge to the outer peripheral edge of the second mesh cover, the distance from the third surface to the end of the second annular protrusion away from the third surface along the axial direction of the speaker cover first increases and then decreases.

[0007] According to an embodiment of the first aspect of this application, along the direction from the inner peripheral edge to the outer peripheral edge of the second mesh cover, the maximum value of the distance from the third surface to the end of the second annular protrusion away from the third surface along the axial direction of the speaker cover is Dmax, and the minimum value is Dmin, where Dmax-Dmin≤3mm.

[0008] According to an embodiment of the first aspect of this application, the first mesh cover further includes a first connecting surface located at one end of the first annular protrusion away from the first surface along the axial direction of the speaker cover; the first connecting surface is part of a conical surface, and the radius of the inscribed circle of the first connecting surface gradually decreases along the direction from the second surface to the first surface; the second mesh cover further includes a second connecting surface located at the inner peripheral edge of the second mesh cover; the second connecting surface is part of a conical surface, and the radius of the inscribed circle of the second connecting surface gradually decreases along the direction from the fourth surface to the third surface; the first connecting surface and the second connecting surface are fixedly connected.

[0009] According to an embodiment of the first aspect of this application, the gap between the first connecting surface and the second connecting surface is less than or equal to 0.1 mm.

[0010] According to an embodiment of the first aspect of this application, the first connecting surface and the second connecting surface are welded together, and the weld scar formed by the welding connection is located at one end of the first connecting surface away from the first surface along the axial direction of the speaker cover.

[0011] According to an embodiment of the first aspect of this application, the first surface is planar, and along the axial direction of the speaker cover, the distance from the inner peripheral edge of the third surface to the first surface is less than or equal to 10 mm and greater than or equal to 5 mm.

[0012] Secondly, embodiments of this application provide a vehicle door structure, including: a vehicle door body, including an inner panel and a mask bracket, the inner panel having a mask mounting hole, and the mask bracket being installed on the inner side of the inner panel; the mask bracket including a first support surface and a second support surface; a speaker mask of the first aspect of this application, the first support surface supporting a second surface, and the second support surface supporting a fourth surface; and a mesh base fabric disposed between the mask bracket and the speaker mask.

[0013] According to an embodiment of the second aspect of this application, at least a portion of the second annular protrusion is located outside the outer periphery of the mask support; at least a portion of the second annular protrusion extends radially inward along the speaker mask and engages with the mask support.

[0014] In the speaker grille and door structure provided in this application embodiment, the direction from the second surface to the first surface of the first mesh cover corresponds to the sound propagation direction of the speaker grille. The outer peripheral edge of the first mesh cover has a first annular protrusion facing away from the first surface. The first annular protrusion is fixedly connected to the inner peripheral edge of the second mesh cover, making the first and second mesh covers a single unit. Simultaneously, since the first annular protrusion is located on the side of the first mesh cover facing away from the first surface, the first mesh cover protrudes relative to the third surface of the second mesh cover. This results in an uneven surface on the sound-exiting side of the unit formed by the first and second mesh covers, reducing the limitations imposed by the mesh openings of the first and second mesh covers on the shape of the speaker grille in this application embodiment. This allows the speaker grille in this application embodiment to adapt to the shape and / or function of different installation objects. Furthermore, the mesh openings of the first and second mesh covers can be designed independently, presenting different shapes and / or patterns and / or colors, giving the speaker grille in this application embodiment more design options to meet the requirements of more usage scenarios and improve the adaptability of the speaker grille to different application scenarios. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments of this application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of a speaker cover according to an embodiment of this application.

[0017] Figure 2 This is a cross-sectional view of the speaker grille along a parallel axial direction, according to an embodiment of this application.

[0018] Figure 3 This is a projected view of the speaker grille along a parallel axis, according to an embodiment of this application.

[0019] Figure 4 This is another cross-sectional view of the speaker cover along the parallel axial direction, according to an embodiment of this application.

[0020] Figure 5 for Figure 4 A partial enlarged view of the speaker cover in region A according to an embodiment of this application.

[0021] Figure 6 This is a schematic diagram of a door structure according to an embodiment of this application.

[0022] Figure 7This is a schematic diagram of a speaker grille, grille bracket, and mesh base fabric of a car door structure according to an embodiment of this application.

[0023] Figure 8 This is a schematic diagram of another structure of the speaker cover, cover bracket and mesh base fabric of the car door structure according to an embodiment of this application.

[0024] Figure label:

[0025] 1. First mesh cover; 11. First annular protrusion; 12. First hollow section;

[0026] 2. Second mesh cover; 21. Second annular protrusion; 22. Second perforated section;

[0027] 100. Door body; 101. Inner protective panel; 102. Facial mask bracket;

[0028] 200. Speaker grille;

[0029] 300. Netting base fabric;

[0030] SF1, first surface; SF2, second surface; SF3, third surface; SF4, fourth surface; C1, first connecting surface; C2, second connecting surface; SP1, first supporting surface; SP2, second supporting surface. Detailed Implementation

[0031] The features and exemplary embodiments of various aspects of this application will now be described in detail. Numerous specific details are set forth in the following detailed description in order to provide a comprehensive understanding of this application. However, it will be apparent to those skilled in the art that this application can be implemented without some of these specific details. The following description of embodiments is merely intended to provide a better understanding of this application by illustrating examples thereof.

[0032] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The embodiments will now be described in detail with reference to the accompanying drawings.

[0033] Relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising..." does not exclude the presence of additional identical elements in the process, method, article, or apparatus that includes said element.

[0034] It should be understood that when describing the structure of a component, when referring to a layer or region as being "above" or "on top of" another layer or region, it can mean that it is directly above the other layer or region, or that it contains other layers or regions between it and the other layer or region. Furthermore, if the component is flipped over, that layer or region will be located "below" or "under" the other layer or region.

[0035] Furthermore, the term "and / or" in this article is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, the character " / " in this article generally indicates that the preceding and following related objects have an "or" relationship.

[0036] It should be understood that in the embodiments of this application, "B corresponding to A" means that B is associated with A, and B can be determined based on A. However, it should also be understood that determining B based on A does not mean that B is determined solely based on A; B can also be determined based on A and / or other information.

[0037] The applicant discovered that after the vehicle speakers are installed inside the vehicle doors, holes need to be drilled in the door panels to install speaker grilles. To protect the internal structure of the door, speaker grilles are typically made of metal and are designed as a single component to ensure good structural stability. However, to conduct sound, multiple through-holes are required in the speaker grille. Considering the metal construction, these multiple holes affect the grille's bending strength, making it difficult to achieve complex shapes. Since the speaker grilles are installed on the inner door panels, their design cannot accommodate the shape and function of the door panels, limiting their application scenarios, reducing adaptability, and hindering diverse design possibilities.

[0038] Based on the above analysis, the applicant provides a speaker grille and a door structure. The speaker grille includes a first mesh and a second mesh. Along the direction from the second surface of the first mesh to the first surface, corresponding to the sound propagation direction of the speaker grille, the outer peripheral edge of the first mesh has a first annular protrusion facing away from the first surface. The first annular protrusion is fixedly connected to the inner peripheral edge of the second mesh, so that the first mesh and the second mesh are connected as a whole. Simultaneously, since the first annular protrusion is located on the side of the first mesh facing away from the first surface, the first mesh protrudes relative to the third surface of the second mesh, causing the whole formed by the first and second mesh to have an uneven surface on the sound exit side. This reduces the limitation imposed by the mesh openings of the first and second mesh on the shape of the speaker grille of this embodiment, allowing the speaker grille of this embodiment to adapt to the shape and / or function of different installation objects. Furthermore, the mesh openings of the first mesh cover and the second mesh cover can be designed independently, presenting different shapes and / or patterns and / or colors, which makes the speaker cover of the present application embodiment have more design options to adapt to the requirements of more usage scenarios and improve the adaptability of the speaker cover to different application scenarios.

[0039] Figure 1 This is a schematic diagram of a speaker cover according to an embodiment of this application. Figure 2 This is a cross-sectional view of the speaker grille along a parallel axial direction, according to an embodiment of this application. Figure 3 This is a projected view of the speaker grille along a parallel axis, according to an embodiment of this application.

[0040] Please see Figures 1 to 3 This application provides a speaker grille, comprising: a first grille 1 having a first surface SF1 and a second surface SF2 opposite to each other along the axial direction of the speaker grille; the outer peripheral edge of the second surface SF2 of the first grille 1 having a first annular protrusion 11 extending along the axial direction of the speaker grille; a second grille 2 in the form of an annular shape having a third surface SF3 and a fourth surface SF4 opposite to each other along the axial direction of the speaker grille; the third surface SF3 having an outwardly convex curved surface; the shape of the inner peripheral edge of the second grille 2 being the same as the shape of the outer peripheral edge of the first grille 1; the outer peripheral edge of the fourth surface SF4 of the second grille 2 having a second annular protrusion 21 extending along the axial direction of the speaker grille; and the first annular protrusion 11 being fixedly connected to the inner peripheral edge of the second grille 2.

[0041] In this embodiment, the overall shape of the speaker mask is not limited and can be circular, elliptical or polygonal. For ease of explanation, this embodiment takes a circular speaker mask as an example. In this case, the speaker mask of this embodiment can be regarded as having a certain circular structure. The overall thickness direction of the speaker mask in this embodiment is regarded as the axial direction of the speaker mask, that is, the direction in which sound passes through the speaker of this embodiment.

[0042] Given that this embodiment of the application uses a circular speaker grille as an example, the first mesh cover 1 is circular along the axial direction of the speaker grille and is located in the middle of the speaker grille in this embodiment. Along the axial direction of the speaker grille, the second surface SF2 of the first mesh cover 1 corresponds to the side where sound enters, and the first surface SF1 corresponds to the side where sound exits. The outer peripheral edge of the second surface SF2 of the first mesh cover 1 is provided with a first annular protrusion 11 extending along the axial direction of the speaker grille, so that the first mesh cover 1 is barrel-shaped and the opening direction is opposite to the first surface SF1.

[0043] Given that this embodiment of the application uses a circular speaker grille as an example, the second mesh cover 2 is annular along the axial direction of the speaker grille and is located on the outer periphery of the speaker grille in this embodiment. The shape of the inner peripheral edge of the second mesh cover 2 is the same as the shape of the outer peripheral edge of the first mesh cover 1, so that the end of the first annular protrusion 11 of the first mesh cover 1 facing away from the first surface SF1 can be fixedly connected to the inner peripheral edge of the second mesh cover 2, so that the second mesh cover 2 and the first mesh cover 1 are connected as a whole, so that the speaker grille of this embodiment of the application has good structural strength to protect the related components located on the side of the second surface SF2 and the fourth surface SF4, such as other components of the speaker.

[0044] The outer periphery of the fourth surface SF4 of the second mesh cover 2 is provided with a second annular protrusion 21 extending axially along the speaker cover, so that the first mesh cover 1 and the second mesh cover 2 form a variable-diameter barrel shape after being connected. The first annular protrusion 11 is used for the connection between the speaker cover and the mounting carrier in this embodiment, for example, for the connection between the speaker cover and the inner door panel 101 in this embodiment. The structures of the first surface SF1 of the first mesh cover 1 and the third surface SF3 of the second mesh cover 2 can be designed independently, so that the first surface SF1 of the first mesh cover 1 and the third surface SF3 of the second mesh cover 2 can have different structures, so that the first surface SF1 of the first mesh cover 1 and the third surface SF3 of the second mesh cover 2 can meet different functional or structural requirements, and can also present different shapes. Therefore, the speaker cover of this embodiment can improve the adaptability to different usage scenarios. When determining the specific shape and size of the speaker cover of this embodiment, the first mesh cover 1 and the second mesh cover 2 of a specific shape and / or a specific size can be customized according to the needs of the usage scenario.

[0045] In this embodiment, the first surface SF1 of the first mesh cover 1 and the third surface SF3 of the second mesh cover 2 can both be convex curved surfaces, allowing the speaker cover of this embodiment to present a more complex shape. Meanwhile, the lengths of the first annular protrusion 11 and the second annular protrusion 21 along the axial direction of the speaker cover can be adjusted as needed, thereby further improving the adaptability of the speaker cover of this embodiment to different usage scenarios.

[0046] Further reading Figure 3 The first mesh cover 1 includes at least one first hollow portion 12, which extends from the first surface SF1 to the second surface SF2; the second mesh cover 2 includes at least one second hollow portion 22, which extends from the third surface SF3 to the fourth surface SF4; the orthographic projections of at least one first hollow portion 12 on the first surface SF1 and at least one second hollow portion 22 on the first surface SF1 have different shapes.

[0047] The first perforated portion 12 forms a mesh hole penetrating the first mesh cover 1, and the second perforated portion 22 forms a mesh hole penetrating the second mesh cover 2. Both the first perforated portion 12 and the second perforated portion 22 are used for sound conduction. The shape and size of the first perforated portion 12 and the second perforated portion 22 are not limited; they can be individually configured according to the application scenario. The orthographic projections of at least one first perforated portion 12 on the first surface SF1 and at least one second perforated portion 22 on the first surface SF1 may have different shapes, allowing the mesh of the speaker cover in this cylinder embodiment to present a more complex shape and meet the shape requirements of the application scenario for the speaker cover. To facilitate the manufacturing of the first perforated portion 12 and the second perforated portion 22, the orthographic projections of at least one first perforated portion 12 on the first surface SF1 and at least one second perforated portion 22 on the first surface SF1 may have the same shape. It is understood that the shapes of the first perforated portion 12 and the second perforated portion 22 can be circular or elongated.

[0048] Figure 4 This is another cross-sectional view of the speaker cover along the parallel axial direction, according to an embodiment of this application.

[0049] Further, please refer to Figure 4 Along the direction from the inner peripheral edge to the outer peripheral edge of the second mesh cover 2, the distance from the third surface SF3 to the end of the second annular protrusion 21 away from the third surface SF3 along the axial direction of the speaker cover first increases and then decreases. Therefore, along the radial direction of the speaker cover, the middle part of the third surface SF3 protrudes, making the entire third surface SF3 form an annular convex curved surface. The height of the protrusion in the middle of the third surface SF3 is not limited and can be determined according to the usage scenario.

[0050] Further reading Figure 4Along the direction from the inner peripheral edge to the outer peripheral edge of the second mesh cover 2, the maximum distance from the third surface SF3 to the end of the second annular protrusion 21 away from the third surface SF3 along the axial direction of the speaker cover is Dmax, and the minimum distance is Dmin, where Dmax-Dmin≤3mm. That is to say, the protrusion of the third surface SF3 should not be too large. Considering that the second mesh cover 2 will be made of metal material, and the second hollow part 22 penetrates the third surface SF3 and the fourth surface SF4, if the protrusion of the third surface SF3 is too large, the second hollow part 22 will affect the structural strength of the second mesh cover 2.

[0051] Further reading Figure 4 The first surface SF1 is planar. In this embodiment, after the speaker grille is installed in the usage environment, the risk of the first surface SF1 of the first grille 1 rubbing against external objects can be reduced. Along the axial direction of the speaker grille, the distance from the inner peripheral edge of the third surface SF3 to the first surface SF1 is less than or equal to 10 mm and greater than or equal to 5 mm, which can meet the needs of most usage scenarios. For example, along the axial direction of the speaker grille, the distance from the inner peripheral edge of the third surface SF3 to the first surface SF1 is equal to 7 mm.

[0052] Figure 5 for Figure 4 A partial enlarged view of the speaker cover in region A according to an embodiment of this application.

[0053] Further, please refer to Figure 5 The first mesh cover 1 also includes a first connecting surface C1, which is located at the end of the first annular protrusion 11 away from the first surface SF1 along the axial direction of the speaker cover; the first connecting surface C1 is part of a conical surface, and the radius of the inscribed circle of the first connecting surface C1 gradually decreases along the direction from the second surface SF2 to the first surface SF1; the second mesh cover 2 also includes a second connecting surface C2, which is located at the inner peripheral edge of the second mesh cover 2; the second connecting surface C2 is part of a conical surface, and the radius of the inscribed circle of the second connecting surface C2 gradually decreases along the direction from the fourth surface SF4 to the third surface SF3; the first connecting surface C1 and the second connecting surface C2 are fixedly connected.

[0054] The first connecting surface C1 of the first mesh cover 1 is located at the end of the first annular protrusion 11 away from the first surface SF1 along the axial direction of the speaker cover. The second connecting surface C2 of the second mesh cover 2 is located at the inner peripheral edge of the second mesh cover 2. When connecting the first mesh cover 1 and the second mesh cover 2, the first connecting surface C1 and the second connecting surface C2 are aligned and then fixed together. For example, the first connecting surface C1 and the second connecting surface C2 can be connected by adhesive or welding.

[0055] The first connecting surface C1 is part of a conical surface. Along the direction from the second surface SF2 to the first surface SF1, the radius of the inscribed circle of the first connecting surface C1 gradually decreases. Similarly, the second connecting surface C2 is part of a conical surface. Along the direction from the fourth surface SF4 to the third surface SF3, the radius of the inscribed circle of the second connecting surface C2 gradually decreases. Therefore, when installing the first grille 1 and the second grille 2, a grille can be inserted axially from the fourth surface SF4 side of the second grille 2 along the speaker cover until the first connecting surface C1 and the second connecting surface C2 abut against each other, and then the first connecting surface C1 and the second connecting surface C2 are fixed together. At this time, the first connecting surface C1 and the second connecting surface C2 abut against each other, making it difficult for the first grille 1 to detach from the third surface SF3 side of the second grille 2, thereby improving the structural stability of the speaker cover in this embodiment.

[0056] Further reading Figure 5 The gap between the first connecting surface C1 and the second connecting surface C2 is less than or equal to 0.1 mm. By fixing the first connecting surface C1 and the second connecting surface C2 together, their positions can be made relatively compact. This reduces the risk of connection errors caused by changes in the relative positions of the first connecting surface C1 and the second connecting surface C2 during the fixing process, thereby improving the assembly accuracy of the speaker grille in this embodiment.

[0057] Further reading Figure 5 The first connecting surface C1 and the second connecting surface C2 are welded together, with the weld material entering the gap between them to fix them together. The weld scar formed by the welding is located at the end of the first connecting surface C1 away from the first surface SF1 along the axial direction of the speaker cover. That is, when welding the first connecting surface C1 and the second connecting surface C2, the welding is performed from the side of the second surface SF2 and the fourth surface SF4. Considering that the side of the first surface SF1 and the third surface SF3 is the side of the speaker cover exposed after installation in this embodiment, the impact of the weld scar on the shape and / or function of the speaker cover in this embodiment can be reduced.

[0058] Figure 6 This is a schematic diagram of a door structure according to an embodiment of this application. Figure 7 This is a schematic diagram of a speaker grille, grille bracket, and mesh base fabric of a car door structure according to an embodiment of this application.

[0059] Please see Figure 6 and Figure 7This application also provides a car door structure, including: a car door body 100, including an inner guard plate 101 and a mask bracket 102, the inner guard plate 101 having a mask mounting hole, and the mask bracket 102 being installed on the inner side of the inner guard plate 101; the mask bracket 102 including a first support surface SP1 and a second support surface SP2; the speaker mask 200 of the aforementioned embodiment of this application, the first support surface SP1 supporting a second surface SF2, and the second support surface SP2 supporting a fourth surface SF4; and a mesh base fabric 300 disposed between the mask bracket 102 and the speaker mask 200.

[0060] The door structure of this application embodiment can be a vehicle door, and the vehicle can be a fuel vehicle or a new energy vehicle. At least a portion of the speaker is installed inside the door structure of this application embodiment, and the speaker cover 200 of the aforementioned embodiment of this application is disposed on the inner guard plate 101 of the door body 100. That is, when the door structure of this application embodiment is in the closed state, the speaker cover 200 installed on the inner guard plate 101 faces the interior of the vehicle. It is understood that the first surface SF1 and the third surface SF3 of the speaker cover 200 are exposed relative to the inner guard plate 101. The shape and size of the first surface SF1 and the third surface SF3 should take into account the shape and size of the inner guard plate 101 to adapt to the structural and shape requirements of the inner guard plate 101 for the speaker cover 200.

[0061] The speaker mask 102 is located inside the door body 100. The first support surface SP1 of the speaker mask 102 supports the second surface SF2, and the second support surface SP2 of the speaker mask 102 supports the fourth surface SF4. At the same time, the first connecting surface C1 and the second connecting surface C2 are fixedly connected, so that the speaker mask 200 can maintain structural stability.

[0062] The mesh base fabric 300 is disposed between the mask bracket 102 and the speaker mask 200, which can buffer the vibration between the mask bracket 102 and the speaker mask 200, and also reduce the entry of foreign objects into the interior of the vehicle door structure of this embodiment through the first cutout portion 12 and the second cutout portion 22. At the same time, the mesh base fabric 300 does not have a significant impact on the sound propagating from the speaker mask 200 after being amplified.

[0063] Figure 8 This is a schematic diagram of another structure of the speaker cover, cover bracket and mesh base fabric of the car door structure according to an embodiment of this application.

[0064] Further, please refer to Figure 8 At least a portion of the second annular protrusion 21 is located outside the outer periphery of the mask support 102; at least a portion of the second annular protrusion 21 extends radially inward along the speaker mask 200 and engages with the mask support 102.

[0065] When the speaker grille 200 is not connected to the grille bracket 102, the second annular protrusion 21 can extend axially along the speaker grille 200, allowing the grille bracket 102 to be inserted into the space enclosed by the second annular protrusion 21 from the side of the second surface SF2 and the fourth surface SF4. When the grille bracket 102 abuts against the second surface SF2 and the fourth surface SF4 of the speaker grille 200, at least a portion of the grille bracket 102 is located within the space enclosed by the second annular protrusion 21. At least a portion of the end of the second annular protrusion 21 away from the third surface SF3 can be bent, causing at least a portion of the second annular protrusion 21 to extend radially inward along the speaker grille 200. The bent portion of the second annular protrusion 21 engages with the grille bracket 102, fixing the space enclosed by the second annular protrusion 21 within the space enclosed by the second annular protrusion 21, thus achieving a fixed connection between the grille bracket 102 and the speaker grille 200. Understandably, at this time, a portion of the mesh base fabric 300 is sandwiched between the first support surface SP1 and the second surface SF2, and a portion is assumed to be between the second support surface SP2 and the fourth surface SF4.

[0066] In summary, this application provides a speaker grille and a vehicle door structure. The speaker grille includes a first mesh cover and a second mesh cover. Along the direction from the second surface of the first mesh cover to the first surface, corresponding to the sound propagation direction of the speaker grille, the outer peripheral edge of the first mesh cover has a first annular protrusion facing away from the first surface. The first annular protrusion is fixedly connected to the inner peripheral edge of the second mesh cover, so that the first mesh cover and the second mesh cover are connected as a whole. Simultaneously, since the first annular protrusion is located on the side of the first mesh cover facing away from the first surface, the first mesh cover protrudes relative to the third surface of the second mesh cover. This results in the overall structure formed by the first and second mesh covers having an uneven surface on the sound exit side, reducing the limitations imposed by the mesh openings of the first and second mesh covers on the shape of the speaker grille of this application embodiment. This allows the speaker grille of this application embodiment to adapt to the shape and / or function of different installation objects. Furthermore, the mesh openings of the first mesh cover and the second mesh cover can be designed independently, presenting different shapes and / or patterns and / or colors, which makes the speaker cover of the present application embodiment have more design options to adapt to the requirements of more usage scenarios and improve the adaptability of the speaker cover to different application scenarios.

[0067] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this application, and these modifications or substitutions should all be covered within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A speaker grille, characterized in that, include: The first mesh cover has a first surface and a second surface that are opposite each other along the axial direction of the speaker cover, and the outer peripheral edge of the second surface of the first mesh cover is provided with a first annular protrusion extending along the axial direction of the speaker cover; The second mesh cover is annular and has a third surface and a fourth surface opposite each other along the axial direction of the speaker cover; the third surface is an outwardly convex curved surface; the shape of the inner peripheral edge of the second mesh cover is the same as the shape of the outer peripheral edge of the first mesh cover; the outer peripheral edge of the fourth surface of the second mesh cover is provided with a second annular protrusion extending along the axial direction of the speaker cover; the first annular protrusion is fixedly connected to the inner peripheral edge of the second mesh cover.

2. The speaker grille according to claim 1, characterized in that, The first mesh cover includes at least one first cutout portion, which extends from the first surface to the second surface; the second mesh cover includes at least one second cutout portion, which extends from the third surface to the fourth surface. The orthographic projection of at least one of the first hollowed-out portions onto the first surface and the orthographic projection of at least one of the second hollowed-out portions onto the first surface have different shapes.

3. The speaker grille according to claim 1, characterized in that, Along the direction from the inner peripheral edge to the outer peripheral edge of the second mesh cover, the distance from the third surface to the end of the second annular protrusion away from the third surface along the axial direction of the speaker cover first increases and then decreases.

4. The speaker grille according to claim 1, characterized in that, Along the direction from the inner peripheral edge to the outer peripheral edge of the second mesh cover, the maximum distance from the third surface to the end of the second annular protrusion away from the third surface along the axial direction of the speaker cover is Dmax, and the minimum distance is Dmin, where Dmax-Dmin≤3mm.

5. The speaker grille according to claim 1, characterized in that, The first mesh cover further includes a first connecting surface, which is located at one end of the first annular protrusion away from the first surface along the axial direction of the speaker cover; the first connecting surface is a portion of a conical surface, and the radius of the inscribed circle of the first connecting surface gradually decreases along the direction from the second surface to the first surface; The second mesh cover also includes a second connecting surface, which is located at the inner peripheral edge of the second mesh cover; the second connecting surface is part of a conical surface, and the radius of the inscribed circle of the second connecting surface gradually decreases along the direction from the fourth surface to the third surface; The first connecting surface and the second connecting surface are fixedly connected.

6. The speaker grille according to claim 5, characterized in that, The gap between the first connecting surface and the second connecting surface is less than or equal to 0.1 mm.

7. The speaker grille according to claim 5, characterized in that, The first connecting surface and the second connecting surface are welded together, and the weld scar formed by the welding is located at the end of the first connecting surface away from the first surface along the axial direction of the speaker cover.

8. The speaker grille according to claim 1, characterized in that, The first surface is planar, and along the axial direction of the speaker cover, the distance from the inner peripheral edge of the third surface to the first surface is less than or equal to 10 mm and greater than or equal to 5 mm.

9. A door structure, characterized in that, include: The door body includes an inner panel and a mask bracket. The inner panel has a mask mounting hole, and the mask bracket is installed on the inner side of the inner panel. The mask bracket includes a first support surface and a second support surface. The speaker cover according to any one of claims 1 to 8, wherein the first supporting surface supports the second surface, and the second supporting surface supports the fourth surface; The mesh base fabric is disposed between the mask bracket and the speaker mask.

10. The door structure according to claim 9, characterized in that, At least a portion of the second annular protrusion is located on the outer side of the outer peripheral surface of the mask support; At least a portion of the second annular protrusion extends radially inward along the speaker grille and engages with the grille support.

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