A car speaker

Abstract

The present application discloses a car speaker, including: a shell, a grille plate and an elastic ring, the shell is provided with a sounding groove, a vibration component is installed in the sounding groove; the grille plate is installed in the notch of the sounding groove, and is provided with a plurality of sound-transmitting holes; the elastic ring is installed on the groove wall of the sounding groove; the grille plate is provided with a first abutment block, and when the grille plate is installed in the notch of the sounding groove, the outer wall of the elastic ring is squeezed by the first abutment block to be tightly pressed against the groove wall of the sounding groove. The expansion of the elastic ring is completed by the relative displacement between the shell and the grille plate, at which time the elastic ring plays a role in maintaining the installation accuracy between the shell and the grille plate, and the vibration component is installed in the sounding groove, that is, the installation accuracy of the grille plate and the vibration component is guaranteed, and then the sound quality is guaranteed; at the same time, the use of the elastic ring can avoid uneven local pressure, avoid the phenomenon of incomplete local sealing, and can ensure the sealing and sound quality of long-term work. Therefore, this solution has the ability to maintain sealing and sound quality after frequent impact.

Description

Technical Field

[0001] The utility model relates to the technical field of loudspeaker structures, in particular to a car loudspeaker. Background Art

[0002] A speaker is a device that converts electrical signals into sound signals. It generates sound waves through the movement of vibrating elements (e.g., thin film structures such as voice coils and diaphragms), and is widely used in playback devices including home audio, portable speakers, headphones, and car audio systems. There are different performance requirements for playback devices in different scenarios. For example, the car audio system must be designed to provide not only high-quality sound effects, but also durability and reliability to cope with various harsh conditions during vehicle driving.

[0003] At present, the speakers used in conventional car audio systems mainly include a vibration element, a grille plate and a fixing structure. The fixing structure is generally a screw structure or a buckle structure. The screw structure or the buckle structure can cover and position the grille plate on the vibration element, thereby ensuring the installation accuracy between the grille plate and the vibration element, and then ensuring the quality of the sound effect. However, in fact, the use of screws or buckle structures is prone to uneven local pressure, which is not enough to fully cope with vibration and impact, and is prone to incomplete local sealing, affecting the sound quality of the speaker after long-term operation. Utility Model Content

[0004] The utility model aims to provide a car speaker, which solves the technical problem of incomplete local sealing of the speaker in the prior art after frequent impact.

[0005] To achieve this purpose, the utility model adopts the following technical solutions:

[0006] A car speaker, comprising:

[0007] The shell is provided with a sound-generating groove, and a vibration component is installed in the sound-generating groove;

[0008] A grille plate, which is installed in the notch of the sound-generating slot and is provided with a number of sound-transmitting holes;

[0009] An elastic ring, the elastic ring is installed on the groove wall of the sounding groove;

[0010] Among them, the grille plate is protruded with a first abutment block along the direction of the bottom wall of the sounding groove. When the grille plate is installed in the groove opening of the sounding groove, the outer wall of the elastic ring is squeezed by the first abutment block to be tightly pressed against the groove wall of the sounding groove.

[0011] Optionally, a position corresponding to the elastic ring on the groove wall of the sound-generating groove is recessed inward to form a limiting groove; when the grille plate is installed in the notch of the sound-generating groove, at least part of the elastic ring is squeezed into the limiting groove by the first abutment block.

[0012] Optionally, a mounting ring is protruding inwardly on the groove wall of the sound-generating groove, and a plurality of clamping grooves are provided at intervals along the circumferential direction on the surface of the mounting ring away from the bottom surface of the sound-generating groove; and a clamping block is protruding at the position of each clamping groove corresponding to the grid plate;

[0013] When the grille plate is installed in the notch of the sound-generating slot, the clamping block is inserted into the corresponding clamping slot.

[0014] Optionally, the cross-section of the clamping block is a first triangle, the cross-section of the clamping groove is a second triangle, and the second triangle covers the first triangle.

[0015] Optionally, the sound-generating slot includes a first slot and a second slot connected to each other, the first slot is used to install the vibration component, the second slot is used to install the grid plate, and the slot size of the second slot is larger than the slot size of the first slot;

[0016] The mounting ring is arranged on the groove wall of the second groove and is spaced apart from the groove bottom wall of the second groove to form a limiting groove. The inner ring wall size of the mounting ring is larger than the groove opening size of the first groove.

[0017] Optionally, a second abutment block is protruded from the first abutment block in a direction parallel to the grille plate; when the grille plate is installed in the notch of the sound-generating groove, the first abutment block is supported on the notch edge of the first groove, and the second abutment block abuts against the inner ring wall of the mounting ring.

[0018] Optionally, a gap is left between the second abutment block and the grille plate, and a sealing ring is sleeved in the gap; when the grille plate is installed in the notch of the sound-generating groove, the sealing ring abuts against the inner ring wall of the mounting ring portion.

[0019] Optionally, the cross-sectional shape of the elastic ring is rectangular, and the cross-sectional shape of the sealing ring is circular.

[0020] Compared with the prior art, the utility model has the following beneficial effects:

[0021] The automobile speaker provided by the utility model has a vibration component for sound generation installed in the sound generation groove of the shell, and then the elastic ring and the grille plate are installed in sequence. When the grille plate is installed, the first abutment block on the grille plate is used to abut the inner wall of the elastic ring, so that the elastic ring expands outward until the outer wall of the elastic ring is tightly abutted against the groove wall of the sound generation groove; wherein the first abutment block extends in the direction close to the bottom wall of the sound generation groove, that is, the expansion of the elastic ring is completed by the relative displacement between the shell and the grille plate, at this time, the elastic ring plays a role in maintaining the installation accuracy between the shell and the grille plate, and the vibration component is installed in the sound generation groove, that is, the installation accuracy of the grille plate and the vibration component is guaranteed, and then the sound effect quality is guaranteed; at the same time, in this scheme, the use of the elastic ring can avoid uneven local pressure, avoid the phenomenon of incomplete local sealing, and can ensure the sealing and sound quality of long-term operation. Therefore, the automobile speaker has the advantages of maintaining high sealing and high sound quality after frequent impact. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0023] The structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with this technology. They are not used to limit the conditions under which the present invention can be implemented, and therefore have no substantive technical significance. Any structural modification, change in proportion or adjustment of size, without affecting the effects and purposes that can be achieved by the present invention, should still fall within the scope of the technical contents disclosed by the present invention.

[0024] Figure 1 A schematic diagram of the overall structure of a car speaker provided by an embodiment of the utility model;

[0025] Figure 2 A schematic diagram of the exploded structure of a car speaker provided by an embodiment of the utility model;

[0026] Figure 3 A schematic diagram of the top view of the structure of the car speaker provided by the embodiment of the utility model;

[0027] Figure 4 for Figure 3 Schematic diagram of the cross-section structure along AA;

[0028] Figure 5 for Figure 4A schematic diagram of the local enlarged structure at B;

[0029] Illustrations: 100, shell; 101, sound-emitting groove; 1011, first groove; 1012, second groove; 102, limit groove; 110, mounting ring; 111, snap-fit ​​groove; 200, grille plate; 201, sound-transmitting hole; 210, first abutment block; 220, snap-fit ​​block; 230, second abutment block; 300, elastic ring; 400, sealing ring. DETAILED DESCRIPTION

[0030] In order to make the utility model's purpose, features, and advantages more obvious and easy to understand, the following will be combined with the drawings in the utility model embodiments to clearly and completely describe the technical solutions in the utility model embodiments. Obviously, the embodiments described below are only part of the utility model embodiments, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] In the description of the present invention, it should be understood that the terms "upper", "lower", "top", "bottom", "inside", "outside", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. It should be noted that when a component is considered to be "connected" to another component, it may be directly connected to the other component or there may be a centrally arranged component at the same time.

[0032] The technical solution of the utility model is further explained below with reference to the accompanying drawings and through specific implementation methods.

[0033] like Figures 1 to 5 As shown, Figure 1 The overall structural diagram of the car speaker provided by the embodiment of the utility model is as follows: Figure 2 This is a schematic diagram of the exploded structure of the car speaker provided by the embodiment of the utility model. Figure 3 A schematic diagram of the top view of the car speaker provided by an embodiment of the utility model, Figure 4 for Figure 3 Schematic diagram of the cross-section structure along AA, Figure 5 for Figure 4 Schematic diagram of the local enlarged structure at point B.

[0034] Embodiment 1:

[0035] The car speaker provided in this embodiment is suitable for car audio and can be embedded in car interior panels, car doors and other locations. In this embodiment, by optimizing the structure of the car speaker, the position accuracy, installation accuracy, sealing and other parameters between the grille plate 200 and the vibration component are guaranteed, thereby ensuring the sound quality of the car speaker.

[0036] like Figures 1 to 4 As shown, the car speaker in this embodiment includes a housing 100, a grille plate 200 and an elastic ring 300; the housing 100 is provided with a sounding groove 101, in which a vibration assembly (not shown) is installed, and the vibration assembly includes a thin sheet structure such as a voice coil and a diaphragm known to those skilled in the art, which plays a role in sounding, and is well known to those skilled in the art, and is not specifically introduced in this embodiment; the grille plate 200 is installed in the notch of the sounding groove 101, and is provided with a plurality of sound-transmitting holes 201; the elastic ring 300 is installed on the groove wall of the sounding groove 101. Among them, the grille plate 200 is provided with a first abutment block 210 protruding along the direction close to the groove bottom wall of the sounding groove 101, and when the grille plate 200 is installed in the notch of the sounding groove 101, the outer wall of the elastic ring 300 is squeezed by the first abutment block 210 to be tightly abutted against the groove wall of the sounding groove 101.

[0037] The car speaker in this embodiment has a vibration component for sound generation installed in the sound generation groove 101 of the shell 100, and then the elastic ring 300 and the grille plate 200 are installed in sequence. When installing the grille plate 200, the first abutment block 210 on the grille plate 200 is used to abut the inner wall of the elastic ring 300, so that the elastic ring 300 expands outward until the outer wall of the elastic ring 300 is tightly abutted against the groove wall of the sound generation groove 101. Exemplarily, taking a car interior panel as an example, a mounting hole with a hole diameter smaller than that of the grille plate 200 but larger than that of the area where the sound hole 201 is located is opened on the car interior panel. The car interior panel includes a decorative surface facing the interior space of the vehicle and an assembly surface away from the interior space of the vehicle. The car speaker is located on one side of the assembly surface, and its shell 100 can be fixedly connected to the assembly surface of the car interior panel by gluing or the like. The grille plate 200 is arranged opposite to the mounting hole, so that the sound hole 201 can be arranged toward the interior space of the vehicle through the mounting hole, and the edge of the grille plate 200 is limited by the edge of the mounting hole, thereby realizing the installation of the car speaker.

[0038] Among them, the first abutment block 210 extends in the direction close to the bottom wall of the sound groove 101, that is, the expansion of the elastic ring 300 is completed by using the relative displacement between the shell 100 and the grille plate 200. At this time, the elastic ring 300 plays a role in maintaining the installation accuracy between the shell 100 and the grille plate 200, and the vibration component is installed in the sound groove 101 of the shell 100, that is, the installation accuracy of the grille plate 200 and the vibration component is guaranteed, thereby ensuring the sound quality; at the same time, in this solution, the use of the elastic ring 300 can avoid the occurrence of local uneven pressure between the grille plate 200 and the shell 100, and avoid the phenomenon of partial incomplete sealing at the connection between the two, thereby ensuring the sealing and sound quality of the car speaker for long-term operation. Therefore, the car speaker has the advantages of maintaining high sealing and high sound quality after frequent impact.

[0039] Furthermore, if Figure 4 and Figure 5 As shown, the position of the elastic ring 300 on the groove wall of the sounding groove 101 is recessed inward to form a limiting groove 102; when the grille plate 200 is installed in the groove of the sounding groove 101, at least part of the elastic ring 300 is squeezed into the limiting groove 102 by the first abutment block 210.

[0040] It can be understood that, in the process of the grille plate 200 being installed in the groove opening of the sound-generating groove 101 along the direction close to the bottom wall of the groove, the first abutment block 210 gradually moves downward, and the inner wall of the elastic ring 300 is squeezed by the first abutment block 210 and deformed outward, thereby partially or completely entering into the limiting groove 102. The limiting groove 102 is used to limit the deformed elastic ring 300, that is, the limiting groove 102 is used to limit the elastic ring 300, and the deformed elastic ring 300 is tightly arranged on the first abutment block 210, which can improve the installation accuracy between the grille plate 200 and the shell 100.

[0041] Furthermore, if Figures 2 to 5 As shown, a mounting ring portion 110 is also protruded inwardly on the groove wall of the sound-generating groove 101, and a plurality of clamping grooves 111 are provided at intervals along the circumferential direction on the surface of the mounting ring portion 110 away from the groove bottom surface of the sound-generating groove 101; a clamping block 220 is protruded at the position of the grid plate 200 corresponding to each clamping groove 111; when the grid plate 200 is installed in the notch of the sound-generating groove 101, the clamping block 220 is inserted into the corresponding clamping groove 111. The clamping block 220 and the clamping groove 111 cooperate with each other to prevent the grid plate 200 from rotating in the circumferential direction relative to the mounting ring portion 110, thereby further improving the installation accuracy between the grid plate 200 and the housing 100, and further improving the installation accuracy between the grid plate 200 and the vibration assembly.

[0042] In this embodiment, if Figure 4 and Figure 5As shown, the cross section of the clamping block 220 is a first triangle, the cross section of the clamping groove 111 is a second triangle, and the second triangle covers the first triangle, leaving a certain gap, so that when the car speaker is installed on the assembly surface of the car interior panel, a certain buffer space can be left between the grille plate 200 and the shell 100, so that the grille plate 200 can be more firmly attached to the shell 100. At this time, it is equivalent to the shell 100 being glued to the assembly surface, and the grille plate 200 is pressed on the assembly surface by the shell 100 (the sound-transmitting hole 201 can be set directly opposite the installation hole on the assembly surface), thereby ensuring the installation accuracy between the high grille plate 200 and the vibration component. As other optional embodiments, the cross section of the clamping block 220 and the cross section of the clamping groove 111 can be rectangular, square or other shapes.

[0043] Furthermore, if Figure 4 and Figure 5 As shown, the sound-generating groove 101 includes a first groove 1011 and a second groove 1012 connected to each other. The first groove 1011 is used to install the vibration component, and the second groove 1012 is used to install the grille plate 200, and the groove opening size of the second groove 1012 is larger than the groove opening size of the first groove 1011; the mounting ring portion 110 is arranged on the groove wall of the second groove 1012, and is spaced apart from the groove bottom wall of the second groove 1012 to form a limiting groove 102, and the inner ring wall size of the mounting ring portion 110 is larger than the groove opening size of the first groove 1011.

[0044] It can be understood that the sound-generating groove 101 is a stepped groove body, the first groove 1011 at the bottom is used to install the vibration assembly, and the second groove 1012 at the top is used to install the grille plate 200, and the second groove 1012 is relatively wide. At the same time, the inner ring wall size of the mounting ring portion 110 is larger than the slot size of the first groove 1011, and the mounting ring portion 110 is arranged on the groove wall of the second groove 1012, and the spacing between the mounting ring portion 110 and the groove bottom wall of the second groove 1012 forms a limiting groove 102, which means that the elastic ring 300 can be placed on the groove edge of the first groove 1011 from top to bottom, and the limiting groove 102 is formed above the groove bottom wall of the second groove 1012 (i.e., the groove edge of the first groove 1011), so that the elastic ring 300 is located on one side of the limiting groove 102 at this time. Therefore, when the grid plate 200 is installed in the notch of the sound-generating slot 101 , the first abutting block 210 can squeeze and push the inner wall of the elastic ring 300 , so that the elastic ring 300 at least partially enters the limiting slot 102 .

[0045] Furthermore, a second abutment block 230 is protruded on the first abutment block 210 in a direction parallel to the grid plate 200; when the grid plate 200 is installed in the notch of the sound-generating groove 101, the first abutment block 210 is carried on the notch edge of the first groove 1011, and the second abutment block 230 abuts against the inner ring wall of the mounting ring portion 110. A gap is left between the second abutment block 230 and the grid plate 200, and a sealing ring 400 is sleeved in the gap; when the grid plate 200 is installed in the notch of the sound-generating groove 101, the sealing ring 400 abuts against the inner ring wall of the mounting ring portion 110.

[0046] It should be noted that the sealing ring 400 can be pre-installed in the above-mentioned gap. When the grille plate 200 is installed in the notch of the sound groove 101, the sealing ring 400 abuts against the inner ring wall of the mounting ring 110, the second abutment block 230, and the grille plate 200 respectively, thereby achieving a uniform sealing effect, making the assembly between the grille plate 200 and the shell 100 tighter, thereby reducing the occurrence of noise.

[0047] On the basis of the above embodiment, the cross-sectional shape of the elastic ring 300 is rectangular, and the cross-sectional shape of the sealing ring 400 is circular.

[0048] To facilitate understanding by those skilled in the art, the installation of a car speaker in this embodiment is introduced:

[0049] First, install the vibration assembly in the sound-generating groove 101; then set the elastic ring 300 on the edge of the groove of the first groove 1011, that is, on the groove bottom wall of the second groove 1012; and at this time, the elastic ring 300 is located on the inner side of the limiting groove 102 (that is, along the direction perpendicular to the groove bottom wall of the sound-generating groove 101, the annular elastic ring 300 should be located on the inner side of the annular limiting groove 102, and the two annular projections do not overlap);

[0050] Next, the grille plate 200 is installed in the notch of the sound-generating slot 101. Specifically, the grille plate 200 is carried on the mounting ring 110, and the clamping block 220 is at least partially embedded in the clamping slot 111. At the same time, the second abutting block 230 abuts against the inner wall surface of the mounting ring 110. At this time, a gap is formed between the second abutting block 230, the mounting ring 110 and the grille plate 200. The sealing ring 400 pre-installed in the gap can improve the installation accuracy between the grille plate 200 and the housing 100.

[0051] At the same time, the first abutting block 210 moves downward and abuts against the bottom wall of the second groove 1012. In a direction perpendicular to the bottom wall of the sound-generating groove 101, the annular first abutting block 210 and the annular elastic ring 300 partially overlap, so that the elastic ring 300 is stretched open by the first abutting block 210. Therefore, the elastic ring 300 is partially embedded in the limiting groove 102 at this time, which can further improve the installation accuracy and installation stability between the grille plate 200 and the housing 100.

[0052] Finally, the assembled shell 100 and grille plate 200 are attached to the assembly surface of the car interior panel as a whole in the form of a car speaker, and the shell 100 and the assembly surface are fixed by gluing. The installation gap left between the clamping block 220 and the clamping groove 111 ensures that the grille plate 200 and the shell 100 can fit tightly on the assembly surface to reduce sound leakage. At the same time, the sound hole 201 can face the interior space of the car through the mounting hole of the assembly surface to ensure sound quality.

[0053] Through the above arrangement, the sealing performance of the car speaker at the grille plate 200 is greatly improved and guaranteed, while avoiding the phenomenon of local uneven pressure, so that the car speaker will not have incomplete sealing after frequent impacts, maintaining its sound quality after long-term work and having the advantage of high stability.

[0054] As described above, the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments can still be modified, or some of the technical features can be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. A car speaker, characterized in that: include: A housing (100), the housing (100) being provided with a sound-generating groove (101), and a vibration component being installed in the sound-generating groove (101); A grille plate (200), the grille plate (200) being mounted on the notch of the sound-generating slot (101) and being provided with a plurality of sound-transmitting holes (201); An elastic ring (300), the elastic ring (300) being mounted on a groove wall of the sound-generating groove (101); The grille plate (200) is provided with a first abutment block (210) protruding in a direction close to the bottom wall of the sound-generating groove (101); when the grille plate (200) is installed in the groove opening of the sound-generating groove (101), the outer wall of the elastic ring (300) is squeezed by the first abutment block (210) to be tightly pressed against the groove wall of the sound-generating groove (101).

2. A car speaker according to claim 1, characterized in that: A limiting groove (102) is formed on the groove wall of the sound-generating groove (101) at a position corresponding to the elastic ring (300) and is recessed inwardly; when the grille plate (200) is installed in the groove opening of the sound-generating groove (101), at least a portion of the elastic ring (300) is squeezed into the limiting groove (102) by the first abutment block (210).

3. A car speaker according to claim 2, characterized in that: A mounting ring portion (110) is also provided inwardly protruding from the groove wall of the sound-generating groove (101); a plurality of clamping grooves (111) are provided at intervals along the circumferential direction of the groove surface of the mounting ring portion (110) away from the groove bottom surface of the sound-generating groove (101); and a clamping block (220) is provided protrudingly at a position of the grille plate (200) corresponding to each of the clamping grooves (111); When the grille plate (200) is installed in the notch of the sound-generating slot (101), the clamping block (220) is inserted into the corresponding clamping slot (111).

4. The car speaker according to claim 3, characterized in that: The cross section of the clamping block (220) is in the shape of a first triangle, the cross section of the clamping slot (111) is in the shape of a second triangle, and the second triangle covers the first triangle.

5. The car speaker according to claim 3, characterized in that: The sound-generating slot (101) comprises a first slot (1011) and a second slot (1012) connected to each other, the first slot (1011) being used to install a vibration component, the second slot (1012) being used to install the grid plate (200), and the slot size of the second slot (1012) being larger than the slot size of the first slot (1011); The mounting ring portion (110) is arranged on the groove wall of the second groove (1012) and is spaced apart from the groove bottom wall of the second groove (1012) to form the limiting groove (102). The inner ring wall size of the mounting ring portion (110) is larger than the groove opening size of the first groove (1011).

6. The car speaker according to claim 5, characterized in that: A second abutment block (230) is protrudingly provided on the first abutment block (210) in a direction parallel to the grille plate (200); when the grille plate (200) is installed in the notch of the sound-generating groove (101), the first abutment block (210) is supported on the notch edge of the first groove (1011), and the second abutment block (230) abuts against the inner ring wall of the mounting ring portion (110).

7. The car speaker according to claim 6, characterized in that: A gap is left between the second abutment block (230) and the grille plate (200), and a sealing ring (400) is sleeved in the gap; when the grille plate (200) is installed in the notch of the sound-generating groove (101), the sealing ring (400) abuts against the inner ring wall of the mounting ring portion (110).

8. The car speaker according to claim 7, characterized in that: The cross-sectional shape of the elastic ring (300) is rectangular, and the cross-sectional shape of the sealing ring (400) is circular.

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