An acoustic decoration integrated active noise reduction device

Abstract

The utility model relates to acoustics engineering technical field discloses an acoustic decoration integration initiative noise reduction device, including protection shell, the rear end fixed connection of protection shell has the bottom plate, the rear end fixed connection of bottom plate has the fixed link, the bottom fixed connection of fixed link has the sliding block, the outside sliding connection of sliding block has the rotation ball, the rear end sliding connection of rotation ball has the fixed block, the rear end fixed connection of fixed block has the cross fixed plate, the top end mounting of cross fixed plate has motor no.

Description

Technical Field

[0001] This utility model relates to the field of acoustic engineering technology, and in particular to an active noise reduction device that integrates acoustic decoration. Background Technology

[0002] An integrated acoustic and decorative active noise reduction device combines a decorative panel with active noise reduction technology. It has a built-in microphone array, controller and speaker. The microphone collects noise in real time, the controller generates an anti-phase sound wave, and the speaker cancels the noise to achieve noise reduction. The device can be customized to blend into the interior decoration and is suitable for home, office and other scenarios. It has both functionality and aesthetics and improves the quality of the sound environment.

[0003] The integrated acoustic and decorative active noise reduction device consists of a decorative panel, a noise acquisition module, a signal processing module, and a speaker array. The decorative panel uses porous sound-absorbing material, combining aesthetics and acoustic function. The microphone array is embedded in the panel to monitor noise in real time. The processor analyzes the sound field and generates an anti-phase cancellation signal. The speakers are hidden behind the panel and emit noise reduction waves in a directional manner. The overall structure is compact, achieving a seamless integration of acoustic performance and decorative design.

[0004] Existing acoustic decoration integrated active noise reduction devices have fixed panel angles, making it impossible for the device to dynamically optimize the sound wave reflection path according to environmental changes. As a result, the noise reduction effect is limited to specific frequency bands and limited spatial ranges. The static structure is difficult to adapt to changes in different spatial layouts or noise source locations, resulting in poor environmental adaptability. When adjustments are needed, manual operation is required, which not only makes it difficult to guarantee adjustment accuracy but also makes the operation process cumbersome and inefficient. More importantly, the fixed installation method easily creates acoustic cancellation blind zones in the space, affecting the uniformity of the noise reduction effect. Therefore, an acoustic decoration integrated active noise reduction device is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides an integrated acoustic decoration active noise reduction device, which aims to improve the problem in the prior art that the device cannot dynamically optimize the sound wave reflection path according to environmental changes due to the fixed panel angle, resulting in the noise reduction effect being limited to a specific frequency band and a limited space range.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] An integrated acoustic decoration active noise reduction device includes a protective shell, a base plate fixedly connected to the rear end of the protective shell, a fixing rod fixedly connected to the rear end of the base plate, a slider fixedly connected to the bottom end of the fixing rod, a rotating ball slidably connected to the outer side of the slider, a fixing block slidably connected to the rear end of the rotating ball, a cross fixing plate fixedly connected to the rear end of the fixing block, a second motor mounted on the top end of the cross fixing plate, a hollow semi-ring fixedly connected to the driving end of the second motor, and a disassembly and splicing assembly fixedly connected to the front end of the protective shell.

[0008] As a further description of the above technical solution:

[0009] The disassembly and assembly assembly includes a sound-absorbing plate. The rear end of the sound-absorbing plate is fixedly connected to the front end of the protective shell. Two positioning plates are fixedly connected to the outer side of the sound-absorbing plate. A pull rod is slidably connected to the inner side of each of the two positioning plates. A locking block is fixedly connected to the bottom end of the pull rod. A positioning plate is slidably connected to the outer side of the locking block. A decorative plate is fixedly connected to the bottom end of the positioning plate.

[0010] As a further description of the above technical solution:

[0011] A motor is installed at the right end of the cross-shaped fixing plate, and a hollow half-ring is fixedly connected to the drive end of the motor.

[0012] As a further description of the above technical solution:

[0013] A speaker is fixedly connected to the inner side of the protective shell, and a sound-absorbing plate is fixedly connected to the front end of the speaker.

[0014] As a further description of the above technical solution:

[0015] The inner side of the hollow semi-ring two is slidably connected to the outer side of the fixed rod, and the outer side of the fixed rod is slidably connected to the hollow semi-ring one;

[0016] As a further description of the above technical solution:

[0017] Two auxiliary rods are fixedly connected to the front end of the sound-absorbing plate, and the outer sides of the two auxiliary rods are slidably connected to the inside of the decorative plate.

[0018] As a further description of the above technical solution:

[0019] The inner side of the positioning plate two is slidably connected to the locking block two, and the outer side of the locking block two is slidably connected to the inner side of the positioning plate one.

[0020] As a further description of the above technical solution:

[0021] The outer side of the decorative panel is fixedly connected to the rear end of the second positioning plate, and the inner side of the second positioning plate is slidably connected to the second pull rod.

[0022] This utility model has the following beneficial effects:

[0023] 1. In this utility model, the second motor drives the second hollow semi-ring to rotate left and right, thereby driving the fixed rod and the slider to slide in the cross groove of the rotating ball, realizing the planar rotation of the device. At the same time, the first motor drives the first hollow semi-ring to rotate up and down, linking the fixed rod and the slider to slide, realizing the longitudinal rotation of the device. The two work together, and finally the fixed rod drives the base plate and all front components to rotate at multiple angles, optimizing the sound wave reflection path and significantly improving the active noise reduction effect.

[0024] 2. In this utility model, by rotating the first and second pull rods, the first and second locking blocks respectively drive the first and second locking blocks to engage or disengage on the inner side of the first and second positioning plates, thereby realizing the quick splicing or disassembly of the decorative panel and the sound-absorbing panel. Through the positioning and cooperation of the auxiliary rod, the replacement of the decorative panel is flexible and convenient, adapting to the size and layout requirements of different spaces. Attached Figure Description

[0025] Figure 1 This is a three-dimensional schematic diagram of an integrated acoustic decoration active noise reduction device proposed in this utility model.

[0026] Figure 2 This is a schematic diagram of the protective shell of an integrated acoustic decoration active noise reduction device proposed in this utility model.

[0027] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0028] Figure 4 for Figure 2 Enlarged view of point B in the middle.

[0029] Legend:

[0030] 1. Decorative panel; 2. Soundproof panel; 3. Protective shell; 4. Speaker; 5. Base plate; 6. Cross fixing plate; 7. Motor 1; 8. Motor 2; 9. Fixing block; 10. Rotating ball; 11. Slider; 12. Hollow semi-ring 1; 13. Hollow semi-ring 2; 14. Fixing rod; 15. Pull rod 1; 16. Locking block 1; 17. Positioning plate 1; 18. Locking block 2; 19. Positioning plate 2; 20. Pull rod 2; 21. Auxiliary rod. Detailed Implementation

[0031] 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.

[0032] Reference Figures 1 to 3 This utility model provides an embodiment of an integrated acoustic decoration active noise reduction device, including a protective shell 3, which serves as the outer protective structure of the device and can effectively resist external collisions and dust intrusion, providing a stable operating environment for the internal precision components. A base plate 5 is fixedly connected to the rear end of the protective shell 3, providing stable support for the rear of the entire device and ensuring that the noise reduction effect is not affected by shaking after the internal components are installed. A speaker 4 is fixedly connected to the inner side of the protective shell 3. The speaker 4, as the core sound-emitting component of active noise reduction, achieves noise cancellation by emitting sound waves with the opposite phase to the external noise, significantly reducing the decibel of the ambient noise. A sound-absorbing plate 2 is fixedly connected to the front end of the speaker 4, which further optimizes the sound waves emitted by the speaker 4, eliminates the noise generated by sound wave reflection, and makes the noise reduction wave propagate more purely and efficiently.

[0033] A fixed rod 14 is fixedly connected to the rear end of the base plate 5. The fixed rod 14 serves as the connecting hub of the rotating structure, providing a reliable fixed foundation for subsequent multi-angle rotation. A slider 11 is fixedly connected to the bottom end of the fixed rod 14. The slider 11 can slide on a specific track, providing flexible movement conditions for the device to achieve multi-angle rotation. A rotating ball 10 is slidably connected to the outer side of the slider 11. The surface of the rotating ball 10 is designed with a cross groove. With the sliding of the slider 11, the device can rotate in the plane and longitudinal directions. A fixed block 9 is slidably connected to the rear end of the rotating ball 10. The fixed block 9 plays the role of stabilizing the rotating ball 10, preventing it from shifting during rotation, and ensuring the stability of the device rotation. A cross fixing plate 6 is fixedly connected to the rear end of the fixing block 9. The cross fixing plate 6 provides an installation platform for the motor and the hollow semi-ring and is an important support structure for the multi-angle rotation assembly.

[0034] A motor 2 8 is installed at the top of the cross-shaped fixing plate 6. A hollow semi-ring 2 13 is fixedly connected to the drive end of the motor 2 8. The motor 2 8 can precisely control the rotation angle and speed of the hollow semi-ring 2 13, providing power for the device to achieve planar rotation. The hollow semi-ring 2 13 locks the fixing rod 14, and under the drive of the motor 2 8, it can rotate left and right, thereby driving the entire device to rotate in the planar direction. A disassembly and splicing assembly is fixedly connected to the front end of the protective shell 3. The disassembly and splicing assembly allows for quick replacement of the decorative panel, meeting the needs of different space decoration styles and sizes. A motor 1 7 is installed at the right end of the cross-shaped fixing plate 6. A hollow semi-ring 12 is fixedly connected to the drive end of motor 7. Motor 7 provides power for the longitudinal rotation of the device. By precisely controlling the rotation of hollow semi-ring 12, the device can be flexibly adjusted in the longitudinal angle. Hollow semi-ring 12 locks the fixed rod 14 and can rotate up and down under the drive of motor 7, thereby driving the device to rotate longitudinally. The inner side of hollow semi-ring 13 is slidably connected to the outer side of fixed rod 14. Hollow semi-ring 12 is slidably connected to the outer side of fixed rod 14. The two lock the fixed rod 14 together, ensuring that under the drive of the motor, all parts at the front end of the base plate 5 can be stably driven to achieve multi-angle rotation.

[0035] Reference Figure 2 , Figure 4 The disassembly and assembly assembly includes a sound-absorbing plate 2. The rear end of the sound-absorbing plate 2 is fixedly connected to the front end of the protective shell 3. It not only optimizes noise reduction but also provides an installation base for disassembly and assembly. Two positioning plates 17 are fixedly connected to the outer side of the sound-absorbing plate 2. A pull rod 15 is slidably connected to the inner side of each of the two positioning plates 17. A locking block 16 is fixedly connected to the bottom end of the pull rod 15. A positioning plate 2 19 is slidably connected to the outer side of the locking block 16. The positioning plate 17 provides a sliding track for the pull rod 15 and the locking block 16 to ensure the accuracy and stability of the engagement process. By rotating, the pull rod 15 can drive the locking block 16 to move between the positioning plate 17 and the positioning plate 2 19, realizing the engagement and disengagement of the decorative panel 1. During the rotation, the positioning plate 17 and the positioning plate 2 19 can be tightly engaged to ensure the firmness of the decorative panel 1 after installation.

[0036] The inner side of the positioning plate 2 19 is slidably connected to the locking block 2 18. The positioning plate 2 19 provides sliding space for the locking block 2 18 and cooperates with the positioning plate 1 17 to form a stable locking structure. The locking block 2 18 and the locking block 1 16 cooperate with each other to realize the quick splicing and disassembly of the decorative panel 1 and the sound-absorbing panel 2 by rotation. The outer side of the locking block 2 18 is slidably connected to the inner side of the positioning plate 1 17. The two are tightly fitted to ensure that the decorative panel 1 will not easily loosen after installation. The bottom end of the positioning plate 2 19 is fixedly connected to the decorative panel 1. The decorative panel 1 not only beautifies the environment, but can also be replaced according to different space requirements to improve the applicability of the device.

[0037] Two auxiliary rods 21 are fixedly connected to the front end of the sound-absorbing panel 2. The two auxiliary rods 21 provide precise positioning guidance for the installation of the decorative panel 1, enabling the decorative panel 1 to be quickly and accurately spliced ​​with the sound-absorbing panel 2. The outer sides of the two auxiliary rods 21 are slidably connected to the inside of the decorative panel 1 to ensure that the decorative panel 1 will not shift during installation, ensuring the tightness and stability of the splicing. The outer side of the decorative panel 1 is fixedly connected to the rear end of the positioning plate 2 19. The positioning plate 2 19 engages with the positioning plate 1 17 on the sound-absorbing panel 2 to achieve a stable installation of the decorative panel 1. The inner side of the positioning plate 2 19 is slidably connected to the pull rod 20. The pull rod 20 and the pull rod 1 15 rotate together to control the engagement and disengagement of the locking block 1 16 and the locking block 2 18, facilitating the disassembly and replacement of the decorative panel 1.

[0038] Working Principle: During interior decoration, in order to eliminate some noise, an integrated acoustic decoration active noise reduction device can be used to reduce environmental noise. To improve the noise reduction effect, the user opens the multi-angle rotation component at the bottom of the device to automatically adjust the panel angle and position, optimize the sound wave reflection path, and achieve multi-angle rotation of the main body of the device by the cooperation of motor 8 and motor 7. Motor 8 drives the hollow half ring 13 to rotate left and right, which drives the slider 11 fixed by the fixed rod 14 to slide on the cross groove surface of the rotating ball 10 and realize the planar rotation of the device. Motor 7 drives the hollow half ring 12 to rotate up and down, which drives the slider 11 fixed by the fixed rod 14 to slide on the cross groove surface of the rotating ball 10 and realize the longitudinal rotation of the device. The two rotations can also be combined to finally achieve multi-angle rotation. The fixed rod 14, which is locked inside the hollow half ring 12 and the hollow half ring 13, drives all the parts at the front end of the base plate 5 to achieve the effect.

[0039] To facilitate flexible adjustment of size and layout to adapt to different space requirements, a disassembly and splicing assembly is used between decorative panel 1 and sound-absorbing panel 2 to replace decorative panel 1. When replacing decorative panel 1, first align the hole of decorative panel 1 with the auxiliary rod 21 fixed at the front end of sound-absorbing panel 2, and then assemble the two. Rotate pull rod 15 and pull rod 20 to drive locking block 16 and locking block 28 to rotate inside positioning plate 29 and positioning plate 17, and finally lock the two together. When it is necessary to disassemble them, simply rotate pull rod 15 and pull rod 20 again so that locking block 16 and locking block 218 are located inside positioning plate 29 and positioning plate 17 respectively, so as to achieve the separation effect of the two.

[0040] 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 integrated acoustic decoration active noise reduction device, comprising a protective shell (3), characterized in that: The protective shell (3) is fixedly connected to a base plate (5) at its rear end. The base plate (5) is fixedly connected to a fixing rod (14) at its rear end. The fixing rod (14) is fixedly connected to a slider (11) at its bottom end. The slider (11) is slidably connected to a rotating ball (10) on its outer side. The rotating ball (10) is slidably connected to a fixing block (9) at its rear end. The fixing block (9) is fixedly connected to a cross fixing plate (6) at its rear end. The cross fixing plate (6) is equipped with a second motor (8) at its top end. The driving end of the second motor (8) is fixedly connected to a second hollow semi-ring (13). The protective shell (3) is fixedly connected to a disassembly and assembly assembly at its front end.

2. The acoustic decoration integrated active noise reduction device according to claim 1, characterized in that: The disassembly and assembly assembly includes a sound-absorbing plate (2). The rear end of the sound-absorbing plate (2) is fixedly connected to the front end of the protective shell (3). Two positioning plates (17) are fixedly connected to the outer side of the sound-absorbing plate (2). A pull rod (15) is slidably connected to the inner side of each of the two positioning plates (17). A locking block (16) is fixedly connected to the bottom end of the pull rod (15). A positioning plate (19) is slidably connected to the outer side of the locking block (16). A decorative plate (1) is fixedly connected to the bottom end of the positioning plate (19).

3. The acoustic decoration integrated active noise reduction device according to claim 1, characterized in that: A motor (7) is installed on the right end of the cross-shaped fixing plate (6), and a hollow half-ring (12) is fixedly connected to the drive end of the motor (7).

4. The acoustic decoration integrated active noise reduction device according to claim 1, characterized in that: A speaker (4) is fixedly connected to the inner side of the protective shell (3), and a sound-absorbing plate (2) is fixedly connected to the front end of the speaker (4).

5. The acoustic decoration integrated active noise reduction device according to claim 1, characterized in that: The inner side of the hollow semi-ring two (13) is slidably connected to the outer side of the fixed rod (14), and the outer side of the fixed rod (14) is slidably connected to the hollow semi-ring one (12).

6. The acoustic decoration integrated active noise reduction device according to claim 2, characterized in that: The front end of the sound-absorbing plate (2) is fixedly connected to two auxiliary rods (21), and the outer sides of the two auxiliary rods (21) are slidably connected to the interior of the decorative plate (1).

7. The acoustic decoration integrated active noise reduction device according to claim 2, characterized in that: The inner side of the positioning plate 2 (19) is slidably connected to the locking block 2 (18), and the outer side of the locking block 2 (18) is slidably connected to the inner side of the positioning plate 1 (17).

8. The acoustic decoration integrated active noise reduction device according to claim 2, characterized in that: The outer side of the decorative panel (1) is fixedly connected to the rear end of the positioning plate two (19), and the inner side of the positioning plate two (19) is slidably connected to the pull rod two (20).

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