Stereo cavity structure of loudspeaker

Abstract

The utility model belongs to the field of vehicle-mounted loudspeakers, and particularly relates to a stereo cavity structure of a loudspeaker, which comprises a cavity main body. The top end of the cavity main body is provided with a quick connection assembly, the outer side of the cavity main body is provided with a support connection assembly, the bottom end of the inner wall of the cavity main body is provided with a reflection grid, the reflection grid is designed to be a latticed corrugated bulge, and the back surface of the cavity main body is also provided with a reinforcing assembly; the quick connection assembly is used for being connected with a loudspeaker, the quick connection assembly is used for being connected with a loudspeaker installation support, and the reinforcing assembly is used for enhancing the overall strength and reducing resonance; through the structural design of the combination of the reflection grids and the cavity main body, the function of bundling and gathering the reflected sound waves while the sound waves are reflected for multiple times to form a vigorous sound field is realized, and the problem that the interior of the existing loudspeaker cavity is mostly of a simple bowl-shaped structure, so that only the sound can be simply reflected for a single time, and the effect is poor is solved. And the formed sound field effect is poor.

Description

Technical Field

[0001] The utility model relates to the field of vehicle-mounted loudspeakers, in particular to a loudspeaker stereo cavity structure. Background Art

[0002] Car speakers are an important part of the car audio system. They are mainly used to play audio signals such as music, radio, navigation prompts, etc. Car doors, dashboards, trunks, etc. are common installation locations. Car speakers are mainly composed of speaker cavity, speaker body and mounting bracket. The speaker body is an active sound unit installed on the speaker cavity. The speaker cavity forms a mixed sound field by reflecting the sound emitted by the speaker body, making the sound more three-dimensional and rich.

[0003] The current vehicle-mounted speaker cavity structure can be specifically referred to the patent application number: CN202120292629.8, which discloses in detail a vehicle-mounted speaker, including a plastic basin and a speaker body arranged in the inner cavity of the plastic basin; a mounting plate extends outward from the outer edge of the bottom of the plastic basin, and a plurality of through holes are provided on the outer edge of the mounting plate for fixed connection with the vehicle body sheet metal; the mounting plate is provided with at least one positioning column toward the vehicle body sheet metal, corresponding to the positioning hole of the vehicle body sheet metal; a plurality of waterproof covers are extended from the mounting plate toward the vehicle body sheet metal. The vehicle-mounted speaker in this utility model is preliminarily positioned with the vehicle body sheet metal by the positioning column, which facilitates installation, improves assembly efficiency, and enhances assembly accuracy and stability. At the same time, the waterproof performance of the vehicle-mounted speaker is improved by providing a waterproof cover connected to the vehicle body sheet metal.

[0004] The existing vehicle-mounted speaker cavity requires the use of fasteners such as screws to connect to the speaker body, which is inconvenient to install. In addition, the interior of the existing speaker cavity is mostly a simple bowl-shaped structure that can only simply reflect the sound once, resulting in a poor sound field effect. Therefore, a speaker stereo cavity structure is proposed to address the above problems. Utility Model Content

[0005] In order to make up for the shortcomings of the existing technology, the existing vehicle-mounted speaker cavity needs to use fasteners such as screws to connect with the speaker body, which is inconvenient to install, and the interior of the existing speaker cavity is mostly a simple bowl-shaped structure that can only simply reflect the sound once, resulting in a poor sound field effect. The utility model proposes a speaker stereo cavity structure.

[0006] The technical solution adopted by the present invention to solve the technical problem is as follows: a speaker stereo cavity structure described in the present invention includes a cavity body; a quick-connect assembly is provided at the top of the cavity body, a bracket connection assembly is provided on the outside of the cavity body, a reflection grid is provided at the bottom end of the inner wall of the cavity body, the reflection grid is a grid-like corrugated convex design, and a reinforcement assembly is also provided on the back of the cavity body;

[0007] The quick-connect assembly is used to connect the loudspeaker, the quick-connect assembly is used to connect the loudspeaker mounting bracket, the reinforcing assembly is used to enhance the overall strength and reduce resonance, and a metal film is glued to the front of the reflective grid.

[0008] Preferably, the bracket connecting assembly includes a first mounting foot, the first mounting foot is fixedly connected to the rear side of the cavity body, a first mounting hole is provided at a position near the center of the first mounting foot, a second mounting foot is fixedly connected to the front end of the cavity body, a second mounting hole is provided at a position near the center of the second mounting foot, a wire clamp is fixedly connected to the outer side of the second mounting foot, a third mounting foot is fixedly connected to the left side of the second mounting foot, a card interface is provided on the inner wall of the third mounting foot, a second positioning groove is provided on the outer side of the third mounting foot, a card block is fixedly connected to the inner wall of the second positioning groove, a third mounting hole is provided at a position near the middle of the inner wall of the cavity body, and a fourth mounting hole is provided at a position near the bottom end of the inner wall of the cavity body.

[0009] Preferably, a first positioning groove is provided on the front of the first mounting foot, and the first positioning groove is designed in the shape of a rice grain. Guide plates are fixedly connected to both sides of the first mounting foot, and left and right indicator marks are fixedly connected to the front of the second mounting foot near the front end.

[0010] Preferably, a locking reminder mark is provided at a position near the front end of the top surface of the cavity body, and a slot is provided at a position near the second mounting foot on the front side of the top of the cavity body, and an auxiliary fixing plate is fixedly connected to the inner wall of the slot.

[0011] Preferably, the quick-connect assembly includes a protrusion, which is fixedly connected to the top of the cavity body near the edge, and a positioning block is fixedly connected to the protrusion. A fixing groove is provided on the edge of the inner wall of the top of the cavity body, and three groups of fixing grooves are provided. The three groups of fixing grooves are evenly distributed in a circular array on the edge of the inner wall of the top of the cavity body, and a fixing card is fixedly connected to the inner wall of the fixing groove. An auxiliary fixing groove is provided at the top of the cavity body near the inner wall, and three groups of auxiliary fixing grooves are provided, and the three groups of auxiliary fixing grooves are evenly distributed on the top of the cavity body near the inner wall.

[0012] Preferably, the reinforcement component includes a bracket positioning groove, which is provided at a position near the edge on the back side of the cavity body, and there are two groups of bracket positioning grooves, the two groups of bracket positioning grooves are respectively connected to the two groups of fixing grooves on the left side, both sides of the back side of the first mounting foot are fixedly connected with bracket positioning pieces, and the back side of the bracket positioning piece is also fixedly connected with a first reinforcing rib, the back side of the third mounting hole is fixedly connected with a second reinforcing rib, and the back side of the second mounting foot is fixedly connected with a third reinforcing rib, the first reinforcing rib, the second reinforcing rib and the third reinforcing rib are all mesh-shaped, and the edge position of the back side of the cavity body is fixedly connected with an edge reinforcing rib.

[0013] The utility model is beneficial in that:

[0014] 1. The present invention utilizes a structural design combining a reflective grid and a cavity body to achieve the function of simultaneously reflecting sound waves multiple times to form a rich sound field and converging the reflected sound waves. The cavity body focuses the reflected sound waves and outputs them into the cockpit, enhancing the stereo effect. This solves the problem of existing speaker cavities, which mostly have a simple bowl-shaped interior and can only reflect sound once, resulting in a poor sound field effect, thereby improving sound quality.

[0015] 2. The utility model realizes the function of connecting and installing the speaker body and the cavity body without using fasteners such as screws through the structural design of the quick-connect component, which solves the problem that the existing vehicle-mounted speaker cavity needs to use fasteners such as screws when connecting with the speaker body, which is inconvenient to install, and improves the efficiency of assembling the speaker body and the cavity body. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 This is a schematic diagram of the front three-dimensional structure of the utility model;

[0018] Figure 2 This is a front view structural diagram of the utility model;

[0019] Figure 3 This is a schematic diagram of the rear-view stereoscopic structure of the utility model;

[0020] Figure 4 It is a rear view structural schematic diagram of the present utility model.

[0021] In the figure: 1. cavity body; 21. reflector grid; 22. first mounting foot; 23. first mounting hole; 24. first positioning slot; 25. second mounting foot; 26. second mounting hole; 27. left and right indicator marks; 28. third mounting foot; 29. ​​card interface; 30. second positioning slot; 31. card block; 32. lock prompt mark; 33. third mounting hole; 34. overhang; 35. positioning block; 36. auxiliary fixing slot; 37. fixing slot; 38. fixing card; 39. positioning plate; 40. notch; 41. auxiliary fixing plate; 42. wire clamp; 43. fourth mounting hole; 44. bracket positioning slot; 45. bracket positioning plate; 46. first reinforcing rib; 47. second reinforcing rib; 48. third reinforcing rib; 49. edge reinforcing rib. DETAILED DESCRIPTION

[0022] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] See also Figure 1-Figure 4 As shown, a speaker stereo cavity structure includes a cavity body 1; a quick-connect assembly is provided at the top of the cavity body 1, a bracket connection assembly is provided on the outside of the cavity body 1, a reflective grid 21 is provided at the bottom end of the inner wall of the cavity body 1, and the reflective grid 21 is a grid-like corrugated convex design; and a reinforcement assembly is also provided on the back of the cavity body 1;

[0024] The quick-connect assembly is used to connect the speaker, and the quick-connect assembly is used to connect the speaker mounting bracket. The reinforcing assembly is used to enhance the overall strength and reduce resonance. The front surface of the reflective grid 21 is adhered with a metal film, and the metal film is made of aluminum alloy. By adhering the metal film made of aluminum alloy to the front surface of the reflective grid 21, the overall reflectivity of the reflective grid 21 to sound waves can be effectively enhanced, thereby reducing sound wave loss.

[0025] When working, the sound emitted by the speaker body after being connected to the cavity body 1 is mainly transmitted into the cockpit, but at the same time some sound waves will also be transmitted into the interior of the cavity body 1. The sound waves propagating inside the cavity body 1 will produce repeated and staggered collisions with the reflection grid 21. After losing a certain amount of energy, a low-frequency sound field will be formed, and then transmitted to the interior of the cockpit through the convergence of the cavity body 1, which can effectively supplement the low-frequency sound part of the speaker and make the sound of the speaker more full and three-dimensional.

[0026] Furthermore, the bracket connecting assembly includes a first mounting foot 22, which is fixedly connected to the rear side of the cavity body 1, and a first mounting hole 23 is opened at a position near the center of the first mounting foot 22; a second mounting foot 25 is fixedly connected to the front end of the cavity body 1, and a second mounting hole 26 is opened at a position near the center of the second mounting foot 25; a wire clamp 42 is fixedly connected to the outer side of the second mounting foot 25, and the wire on the speaker body is fixed by the wire clamp 42; a third mounting foot 28 is fixedly connected to the left side of the second mounting foot 25, and a card interface 29 is opened on the inner wall of the third mounting foot 28, and a second positioning groove 30 is opened on the outer side of the third mounting foot 28, and a card block 31 is fixedly connected to the inner wall of the second positioning groove 30; a third mounting hole 33 is opened at a position near the middle of the inner wall of the cavity body 1, and a fourth mounting hole 43 is opened at a position near the bottom end of the inner wall of the cavity body 1;

[0027] During operation, when the cavity body 1 is to be connected to the speaker bracket, it is only necessary to put the card interface 29 on the outside of the corresponding position on the speaker bracket and then use a special buckle to preliminarily connect the cavity body 1 and the speaker bracket. Then align the first mounting hole 23, the second mounting hole 26, the third mounting hole 33 and the fourth mounting hole 43 with the corresponding hole positions on the speaker bracket and tighten the screws to connect the speaker bracket to the cavity body 1.

[0028] Furthermore, a first positioning groove 24 is formed on the front of the first mounting foot 22. The first positioning groove 24 is designed in the shape of a rice grain. Guide plates 39 are fixedly connected to both sides of the first mounting foot 22. Left and right indicator marks 27 are fixedly connected to the front of the second mounting foot 25 near the front end.

[0029] During operation, the first positioning groove 24 serves to assist in positioning when installing between the cavity body 1 and the speaker bracket, the left and right indicator marks 27 serve to remind and facilitate the installer to distinguish between the left and right sides for installation, and the guide plate 39 serves to guide when connecting between the cavity body 1 and the speaker bracket.

[0030] Furthermore, a locking reminder mark 32 is provided on the top surface of the cavity body 1 near the front end, and a notch 40 is provided on the front side of the top of the cavity body 1 near the second mounting foot 25, and an auxiliary fixing piece 41 is fixedly connected to the inner wall of the notch 40;

[0031] During operation, when the mark on the speaker body is aligned with the locking reminder mark 32, the speaker body is fixed, and the locking reminder mark 32 serves to remind the installer that the speaker body has been installed in place.

[0032] Furthermore, the quick-connect assembly includes a protruding eaves 34, which is fixedly connected to a position near the edge of the top of the cavity body 1, and a positioning block 35 is fixedly connected to the protruding eaves 34. A fixing groove 37 is provided on the edge of the inner wall of the top of the cavity body 1, and three groups of the fixing grooves 37 are provided. The three groups of fixing grooves 37 are evenly distributed in a circular array on the edge of the inner wall of the top of the cavity body 1, and a fixing card 38 is fixedly connected to the inner wall of the fixing groove 37. An auxiliary fixing groove 36 is provided at a position near the inner wall of the top of the cavity body 1, and three groups of the auxiliary fixing grooves 36 are provided, and the three groups of the auxiliary fixing grooves 36 are evenly distributed on the position near the inner wall of the top of the cavity body 1;

[0033] During operation, when the speaker body is to be connected to the cavity body 1, the speaker body is first placed on the top of the front side of the cavity body 1, and the position of the edge of the speaker body is restricted by the protrusion 34 to prevent the position of the speaker body from being offset. The position of the speaker body is positioned by the positioning block 35, and then the speaker body is rotated so that the structure on the speaker body rotates synchronously with the speaker body. When the structure on the speaker body falls into the inside of the fixing groove 37, the speaker body is continued to be rotated so that the speaker body is engaged with the fixing card 38 and is squeezed by the fixing card 38 to fit tightly with the inner wall of the fixing groove 37, thereby fixing the speaker body. At this time, the protrusion on the edge of the speaker body will also fall into the inside of the auxiliary fixing groove 36 to prevent the speaker body from shaking. The wires of the speaker body can be fixed and organized through the slot 40 and the auxiliary fixing plate 41.

[0034] Furthermore, the reinforcement component includes a bracket positioning groove 44, which is provided at a position near the edge of the back of the cavity body 1, and two groups of bracket positioning grooves 44 are provided. The two groups of bracket positioning grooves 44 are respectively connected to the two groups of fixing grooves 37 on the left side. Both sides of the back of the first mounting foot 22 are fixedly connected with bracket positioning pieces 45, and the back of the bracket positioning piece 45 is also fixedly connected with a first reinforcing rib 46, the back of the third mounting hole 33 is fixedly connected with a second reinforcing rib 47, and the back of the second mounting foot 25 is fixedly connected with a third reinforcing rib 48. The first reinforcing rib 46, the second reinforcing rib 47 and the third reinforcing rib 48 are all mesh-shaped. The edge position of the back of the cavity body 1 is fixedly connected with an edge reinforcing rib 49;

[0035] During operation, the bracket positioning piece 45 is used to position the connection point when connecting the cavity body 1 and the speaker bracket, thereby avoiding misalignment of the holes. The combination of the first reinforcing rib 46, the second reinforcing rib 47, the third reinforcing rib 48 and the edge reinforcing rib 49 enhances the overall rigidity of the cavity body 1, thereby avoiding resonance between the cavity body 1 and the speaker body during operation.

[0036] Working principle: After the speaker body is connected to the cavity body 1, the sound emitted when working is mainly propagated into the cockpit, but at the same time some sound waves will also propagate into the interior of the cavity body 1. The sound waves propagating inside the cavity body 1 will produce repeated and staggered collisions with the reflection grid 21. After losing a certain amount of energy, a low-frequency sound field will be formed, and then transmitted to the interior of the cockpit through the convergence of the cavity body 1, which can effectively supplement the low-frequency sound part of the speaker and make the sound of the speaker more rich and three-dimensional.

[0037] When the speaker body is to be connected to the cavity body 1, first place the speaker body on the top of the front side of the cavity body 1, and use the protrusion 34 to limit the position of the edge of the speaker body to prevent the position of the speaker body from being offset. Use the positioning block 35 to provide a positioning prompt for the position of the speaker body, and then rotate the speaker body so that the structure on the speaker body rotates synchronously with the speaker body. When the structure on the speaker body falls into the interior of the fixing groove 37, continue to rotate the speaker body so that the speaker body is engaged with the fixing card 38 and is squeezed by the fixing card 38 to fit tightly with the inner wall of the fixing groove 37, thereby fixing the speaker body. At this time, the protrusion on the edge of the speaker body will also fall into the interior of the auxiliary fixing groove 36 to prevent the speaker body from shaking. The wires of the speaker body can be fixed and organized through the slot 40 and the auxiliary fixing plate 41.

[0038] When the cavity body 1 is to be connected to the speaker bracket, it is only necessary to put the card interface 29 on the outside of the corresponding position on the speaker bracket and then use a special clip to preliminarily connect the cavity body 1 and the speaker bracket. Then align the first mounting hole 23, the second mounting hole 26, the third mounting hole 33 and the fourth mounting hole 43 with the corresponding hole positions on the speaker bracket and tighten the screws to connect the speaker bracket to the cavity body 1.

[0039] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, and similar improvements made within the theoretical and principle content of the present invention shall be included in the scope of protection of the present invention.

Claims

1. A loudspeaker stereo cavity structure, characterized by: The invention comprises a cavity body (1); a quick-connect assembly is provided at the top of the cavity body (1); a bracket connection assembly is provided on the outside of the cavity body (1); a reflective grid (21) is provided at the bottom end of the inner wall of the cavity body (1); the reflective grid (21) is a grid-shaped corrugated convex design; and a reinforcing assembly is also provided on the back of the cavity body (1); The quick-connect assembly is used to connect the loudspeaker, the quick-connect assembly is used to connect the loudspeaker mounting bracket, the reinforcing assembly is used to enhance the overall strength and reduce resonance, and a metal film is glued to the front of the reflection grid (21).

2. The speaker stereo cavity structure according to claim 1, characterized in that: The bracket connection assembly includes a first mounting foot (22), the first mounting foot (22) is fixedly connected to the rear side of the cavity body (1), a first mounting hole (23) is provided at a position close to the center of the first mounting foot (22), a second mounting foot (25) is fixedly connected to the front end of the cavity body (1), a second mounting hole (26) is provided at a position close to the center of the second mounting foot (25), a wire clamp (42) is fixedly connected to the outer side of the second mounting foot (25), a third mounting foot (28) is fixedly connected to the left side of the second mounting foot (25), a card interface (29) is provided on the inner wall of the third mounting foot (28), a second positioning groove (30) is provided on the outer side of the third mounting foot (28), a card block (31) is fixedly connected to the inner wall of the second positioning groove (30), a third mounting hole (33) is provided at a position close to the middle of the inner wall of the cavity body (1), and a fourth mounting hole (43) is provided at a position close to the bottom of the inner wall of the cavity body (1).

3. The speaker stereo cavity structure according to claim 2, characterized in that: The front of the first mounting foot (22) is also provided with a first positioning groove (24), which is designed in the shape of a rice grain. Guide plates (39) are fixedly connected to both sides of the first mounting foot (22), and left and right indicator marks (27) are fixedly connected to the front of the second mounting foot (25) near the front end.

4. The speaker stereo cavity structure according to claim 3, characterized in that: A locking reminder mark (32) is provided on the top surface of the cavity body (1) near the front end, and a notch (40) is provided on the front side of the top end of the cavity body (1) near the second mounting foot (25), and an auxiliary fixing plate (41) is fixedly connected to the inner wall of the notch (40).

5. The speaker stereo cavity structure according to claim 4, characterized in that: The quick-connect assembly includes a protruding eaves (34), which is fixedly connected to a position near the edge of the top of the cavity body (1), and a positioning block (35) is fixedly connected to the protruding eaves (34). A fixing groove (37) is provided on the edge of the inner wall of the top of the cavity body (1), and three groups of the fixing grooves (37) are provided. The three groups of the fixing grooves (37) are evenly distributed in a circular array on the edge of the inner wall of the top of the cavity body (1). A fixing card (38) is fixedly connected to the inner wall of the fixing groove (37). An auxiliary fixing groove (36) is provided at a position near the inner wall of the top of the cavity body (1), and three groups of the auxiliary fixing grooves (36) are provided. The three groups of the auxiliary fixing grooves (36) are evenly distributed on the position near the inner wall of the top of the cavity body (1).

6. The loudspeaker stereo cavity structure according to claim 5, characterized in that: The reinforcing assembly includes a bracket positioning groove (44), the bracket positioning groove (44) is opened at a position close to the edge of the back of the cavity body (1), and two groups of bracket positioning grooves (44) are opened. The two groups of bracket positioning grooves (44) are respectively connected to the two groups of fixed grooves (37) on the left side. Both sides of the back of the first mounting foot (22) are fixedly connected with bracket positioning pieces (45), and the back of the bracket positioning piece (45) is also fixedly connected with a first reinforcing rib (46). The back of the third mounting hole (33) is fixedly connected with a second reinforcing rib (47), and the back of the second mounting foot (25) is fixedly connected with a third reinforcing rib (48). The first reinforcing rib (46), the second reinforcing rib (47) and the third reinforcing rib (48) are all designed in a mesh shape. The edge position of the back of the cavity body (1) is fixedly connected with an edge reinforcing rib (49).

Images