Assembling and splicing structure of acoustic bag

Abstract

The utility model relates to the field of automobile manufacturing, and discloses an acoustic bag assembling and splicing structure which comprises a first acoustic bag, a second acoustic bag is arranged on the outer wall of the first acoustic bag, a screw hole is formed in the surface of the second acoustic bag, a bolt is connected to the inner wall of the screw hole in a threaded mode, a connecting strip is fixedly connected to the outer wall of the first acoustic bag, and the connecting strip is fixedly connected to the outer wall of the first acoustic bag. A dovetail groove is formed in the outer wall of the connecting strip, a dovetail block is fixedly connected to the outer wall of the second acoustic bag, an avoiding groove is formed in the inner wall of the connecting strip, a magnetic ring is fixedly connected to the inner wall of the avoiding groove, a magnetic block is magnetically connected to the top of the magnetic ring, and a sound insulation assembly is arranged on the surface of the connecting strip. According to the acoustic bag splicing structure, by arranging the connecting strips, the dovetail grooves, the dovetail blocks and other structures, when the acoustic bag is quickly spliced, gaps at splicing seams can be made up, sound leakage at the weakest position of the spliced acoustic bag is avoided, and the splicing effect is improved.

Description

Technical Field

[0001] This utility model relates to the field of automobile manufacturing, and in particular to an assembly and splicing structure for an acoustic package. Background Technology

[0002] An acoustic package is a sound insulation and vibration isolation device made of sound-absorbing materials. Its main function is to absorb and isolate noise inside the vehicle, reduce noise transmission and radiation. Car motors generate noise during operation, and this noise can be transmitted into the car through the air, affecting the comfort of driving and riding. The sound-absorbing materials in the acoustic package can effectively absorb the sound energy generated by the motor and convert it into heat energy or mechanical vibration, thereby reducing the transmission of noise.

[0003] A search revealed Chinese Patent Publication No. CN212304996U, which discloses a sound-absorbing package for an automotive motor. This package consists of an upper protective cover and a lower protective cover. The boundary line between the upper and lower sound-absorbing covers is parallel to or coincides with the parting line between the upper and lower shells. This makes the upper and lower protective covers easier to manufacture and assemble, as their assembly is parallel to or coincides with the parting line between the upper and lower shells. The upper and lower protective covers can be fastened together like the upper and lower shells, making their assembly very convenient.

[0004] In the above technical solution, the acoustic package is installed by assembling and snapping together the upper and lower protective covers. However, when assembling the acoustic package, the seams become the weakest points in sound insulation. During the assembly of the acoustic package, it is difficult to form a quick splice and fill the gaps at the seams, which reduces the assembly effect of the acoustic package and thus makes the sound insulation effect worse. Therefore, an assembly and splicing structure for the acoustic package is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides an assembly and splicing structure for an acoustic package, aiming to improve the problem that the existing assembly and splicing structure of acoustic packages cannot compensate for the gaps at the joints during the assembly process, which leads to a reduction in the splicing effect and a decrease in the sound insulation effect.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: an assembly and splicing structure for an acoustic package, comprising an acoustic package one, an acoustic package two being provided on the outer wall of the acoustic package one, a screw hole being provided on the surface of the acoustic package two, a bolt being threadedly connected to the inner wall of the screw hole, a connecting strip being fixedly connected to the outer wall of the acoustic package one, a dovetail groove being provided on the outer wall of the connecting strip, a dovetail block being fixedly connected to the outer wall of the acoustic package two, a clearance groove being provided on the inner wall of the connecting strip, a magnetic ring being fixedly connected to the inner wall of the clearance groove, a magnetic block being magnetically connected to the top of the magnetic ring, and a sound insulation component being provided on the surface of the connecting strip.

[0007] As a further description of the above technical solution:

[0008] The outer wall of the dovetail block is adapted to the inner wall of the dovetail groove, and the top of the magnetic block is fixedly connected to the bottom of the dovetail block.

[0009] As a further description of the above technical solution:

[0010] The sound insulation component includes a through hole, a connecting rod slidably connected to the inner wall of the through hole, a fixing plate fixedly connected to the end of the connecting rod, a sound-absorbing cotton strip fixedly connected to the side wall of the fixing plate, a spring sleeved on the outer wall of the connecting rod, and a slot opened on the outer wall of the acoustic package.

[0011] As a further description of the above technical solution:

[0012] The through hole is opened on the outer wall of the connecting strip near the acoustic package, and the end of the connecting rod away from the fixing plate passes through the interior of the dovetail groove.

[0013] As a further description of the above technical solution:

[0014] One end of the spring is fixedly connected to the side wall of the connecting strip, and the other end of the spring is fixedly connected to the side wall of the fixing plate.

[0015] As a further description of the above technical solution:

[0016] The inner wall of the groove is adapted to the outer wall of the sound-absorbing cotton strip.

[0017] As a further description of the above technical solution:

[0018] The top of the acoustic package one is provided with an embedding groove, and the bottom of the acoustic package two is fixedly connected with a rubber pad, the inner wall of which is provided with a spiral hole.

[0019] As a further description of the above technical solution:

[0020] The inner wall of the embedding groove is adapted to the outer wall of the rubber pad.

[0021] This utility model has the following beneficial effects:

[0022] 1. In this utility model, by setting up connecting strips, dovetail grooves, dovetail blocks, clearance grooves, magnetic rings, magnetic blocks and sound insulation components, the acoustic package can be quickly spliced ​​up, while filling the gaps at the splicing seams, avoiding sound leakage at the weakest point of the acoustic package after splicing, and improving the splicing effect.

[0023] 2. In this utility model, by providing an embedding groove, a rubber pad and a spiral hole, the splicing operation of the acoustic package is assisted, the splicing friction between acoustic package one and acoustic package two is increased, and the sound leakage at the joint is further reduced. Attached Figure Description

[0024] Figure 1 This is a top view schematic diagram of the main structure of the assembly and splicing structure of an acoustic package proposed in this utility model;

[0025] Figure 2 This is a left-side view of the main structure of the acoustic package assembly and splicing structure proposed in this utility model.

[0026] Figure 3 This utility model proposes an assembly and splicing structure for an acoustic package. Figure 2 Enlarged view of region A in the middle;

[0027] Figure 4 This is a right-side view of the main structure of the acoustic package assembly and splicing structure proposed in this utility model, showing its separation.

[0028] Figure 5 This is a partial side view of the assembly and splicing structure of an acoustic package proposed in this utility model;

[0029] Figure 6 This is a partial cross-sectional view of the assembly and splicing structure of an acoustic package proposed in this utility model.

[0030] Legend:

[0031] 1. Acoustic Package One; 2. Acoustic Package Two; 3. Screw Hole; 4. Bolt; 5. Connecting Strip; 6. Dovetail Groove; 7. Dovetail Block; 8. Clearance Groove; 9. Magnetic Ring; 10. Magnetic Block; 11. Through Hole; 12. Connecting Rod; 13. Spring; 14. Fixing Plate; 15. Sound Absorbing Strip; 16. Groove; 17. Embedded Groove; 18. Rubber Pad; 19. Spiral Hole. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] Reference Figures 1-3This utility model provides an embodiment of an acoustic package assembly structure, including an acoustic package 1, an acoustic package 2 on the outer wall of the acoustic package 1, a screw hole 3 on the surface of the acoustic package 2, and a bolt 4 threadedly connected to the inner wall of the screw hole 3. The acoustic package 1 and the acoustic package 2 form an acoustic package as a whole. During installation, the acoustic package 1 and the acoustic package 2 are stacked on the side closest to each other, that is, the edge of the acoustic package 2 is outside the acoustic package 1. The acoustic package as a whole is fixed to the outside of the car motor through the screw hole 3 and the bolt 4. A connecting strip 5 is fixedly connected to the outer wall of the acoustic package 1, and a dovetail groove 6 is opened on the outer wall of the connecting strip 5. A dovetail block 7 is fixedly connected to the outer wall of the acoustic package 2. An avoidance groove 8 is opened on the inner wall of the connecting strip 5, and a magnetic ring 9 is fixedly connected to the inner wall of the avoidance groove 8. A magnetic block 10 is magnetically connected to the top of the magnetic ring 9. A sound insulation component is provided on the surface of the connecting strip 5.

[0034] Reference Figures 4-6 The outer wall of the dovetail block 7 is adapted to the inner wall of the dovetail groove 6. The connection between the dovetail block 7 and the dovetail groove 6 can form a preliminary positioning between the acoustic package 1 and the acoustic package 2. The top of the magnetic block 10 is fixedly connected to the bottom of the dovetail block 7. The sound insulation component includes a through hole 11, which is opened on the outer wall of the connecting strip 5 near the acoustic package 1. A connecting rod 12 is slidably connected to the inner wall of the through hole 11. Several sets of through holes 11, connecting rods 12 and springs 13 are provided, and several sets of through holes 11, connecting rods 12 and springs 13 are distributed at equal distances on the connecting strip. On the side wall of 5, a fixing plate 14 is fixedly connected to the end of the connecting rod 12. The end of the connecting rod 12 away from the fixing plate 14 passes through the interior of the dovetail groove 6. A sound-absorbing cotton strip 15 is fixedly connected to the side wall of the fixing plate 14. A spring 13 is sleeved on the outer wall of the connecting rod 12. One end of the spring 13 is fixedly connected to the side wall of the connecting rod 5, and the other end of the spring 13 is fixedly connected to the side wall of the fixing plate 14. A groove 16 is opened on the outer wall of the acoustic package 1. The inner wall of the groove 16 is adapted to the outer wall of the sound-absorbing cotton strip 15. The groove 16 is opened to allow the sound-absorbing cotton strip 15 to be embedded.

[0035] Reference Figure 2 The top of acoustic package 1 has an embedded groove 17, and the bottom of acoustic package 2 has a rubber pad 18 fixedly connected. The inner wall of the embedded groove 17 is adapted to the outer wall of the rubber pad 18. When the edge of acoustic package 2 covers the edge of acoustic package 1, the rubber pad 18 can enter the embedded groove 17, avoiding the small gap between the two. Due to the material properties of the rubber pad 18, the transmission of noise is reduced by absorbing or reflecting sound waves. The inner wall of the rubber pad 18 has a spiral hole 19. Several sets of spiral holes 19 are equally distributed on the rubber pad 18. The spiral-shaped holes can extend the propagation path of sound waves in the holes, increase the absorption and attenuation of sound waves, and further reduce the noise transmitted from the joint between acoustic package 1 and acoustic package 2.

[0036] Working principle: During the assembly of the acoustic package, place acoustic package 1 on the ground or other flat surface, and place acoustic package 2 vertically downwards close to acoustic package 1. When the dovetail block 7 is inserted into the dovetail groove 6, the connecting rod 12 inside the dovetail groove 6 will be squeezed and move outwards inside the through hole 11. At this time, the spring 13 gradually stretches and moves the fixing plate 14 closer to acoustic package 1 until the sound-absorbing cotton strip 15 enters the groove 16. Due to the continuous descent of the dovetail block 7, the magnetic block 10 will enter the clearance groove 8 and generate magnetic attraction with the magnetic ring 9. At this time, the dovetail block... 7 is completely inside the dovetail groove 6, and the acoustic package 1 and acoustic package 2 are spliced ​​and positioned. Finally, the acoustic package is fixed to the outside of the car motor using bolts 4. During the splicing process, the rubber pad 18 will enter the embedded groove 17, and the sound-absorbing cotton strip 15 will enter the groove 16 to fill the gaps caused by the splicing of acoustic package 2 and acoustic package 1, so as to avoid sound leakage caused by the weakest joint of the acoustic package. By filling the gaps, the direct penetration of sound is reduced, the overall sound insulation performance of the acoustic package is enhanced, and the splicing effect of the acoustic package is improved.

[0037] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An assembly and splicing structure for an acoustic package, comprising an acoustic package one (1), wherein an acoustic package two (2) is provided on the outer wall of the acoustic package one (1), and a screw hole (3) is provided on the surface of the acoustic package two (2), wherein a bolt (4) is threadedly connected to the inner wall of the screw hole (3), characterized in that: The outer wall of the acoustic package one (1) is fixedly connected to a connecting strip (5), and the outer wall of the connecting strip (5) is provided with a dovetail groove (6). The outer wall of the acoustic package two (2) is fixedly connected to a dovetail block (7). The inner wall of the connecting strip (5) is provided with a clearance groove (8). The inner wall of the clearance groove (8) is fixedly connected to a magnetic ring (9). The top of the magnetic ring (9) is magnetically connected to a magnetic block (10). The surface of the connecting strip (5) is provided with a sound insulation component.

2. The assembly and splicing structure of an acoustic package according to claim 1, characterized in that: The outer wall of the dovetail block (7) is adapted to the inner wall of the dovetail groove (6), and the top of the magnetic block (10) is fixedly connected to the bottom of the dovetail block (7).

3. The assembly and splicing structure of an acoustic package according to claim 1, characterized in that: The sound insulation component includes a through hole (11), a connecting rod (12) is slidably connected to the inner wall of the through hole (11), a fixing plate (14) is fixedly connected to the end of the connecting rod (12), a sound-absorbing cotton strip (15) is fixedly connected to the side wall of the fixing plate (14), a spring (13) is sleeved on the outer wall of the connecting rod (12), and a slot (16) is opened on the outer wall of the acoustic package (1).

4. The assembly and splicing structure of an acoustic package according to claim 3, characterized in that: The through hole (11) is opened on the outer wall of the connecting strip (5) near the acoustic package (1), and the end of the connecting rod (12) away from the fixing plate (14) passes through the interior of the dovetail groove (6).

5. The assembly and splicing structure of an acoustic package according to claim 3, characterized in that: One end of the spring (13) is fixedly connected to the side wall of the connecting strip (5), and the other end of the spring (13) is fixedly connected to the side wall of the fixing plate (14).

6. The assembly and splicing structure of an acoustic package according to claim 3, characterized in that: The inner wall of the slot (16) is adapted to the outer wall of the sound-absorbing cotton strip (15).

7. The assembly and splicing structure of an acoustic package according to claim 1, characterized in that: The top of the acoustic package one (1) is provided with an embedding groove (17), and the bottom of the acoustic package two (2) is fixedly connected with a rubber pad (18), and the inner wall of the rubber pad (18) is provided with a spiral hole (19).

8. The assembly and splicing structure of an acoustic package according to claim 7, characterized in that: The inner wall of the embedding groove (17) is adapted to the outer wall of the rubber pad (18).

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