Omnidirectional adjustable digital active ceiling loudspeaker

Abstract

The utility model relates to an omni-directional adjustable digital active ceiling loudspeaker, the omni-directional adjustable digital active ceiling loudspeaker comprises a ceiling shell, a loudspeaker module and a magnetic cover body, the loudspeaker module comprises an inner shell and a loudspeaker assembly, the loudspeaker assembly is installed in the inner shell, the magnetic cover body is installed on the inner shell, and the loudspeaker module is installed on the magnetic cover body. The inner shell is provided with a spherical outer wall, the inner shell is installed in the spherical containing cavity in a concentric spherical surface matching mode, the spherical outer wall is matched with the inner wall of the spherical containing cavity in a damping mode, and the loudspeaker module rotates to a preset position in the ceiling shell and is locked in a damping mode. The magnetic attraction cover body is magnetically attracted to the ceiling shell and seals the spherical containing cavity, a high-pitch unit and a low-pitch unit in the loudspeaker assembly can turn, a user can flexibly adjust the angle of the two units according to actual requirements, the optimal sound output effect is achieved, the needed area is accurately covered with sound, and the sound output effect is improved. And sound dead angles and interference are avoided.

Description

Technical Field

[0001] This utility model relates to the field of ceiling speakers, and more particularly to an omnidirectional adjustable digital active ceiling speaker with adjustable sound directivity. Background Technology

[0002] In modern architectural audio applications, ceiling speaker systems, also known as background music systems, are widely used in hotels, shopping malls, office buildings, and residences due to their ability to create a uniform and comfortable auditory atmosphere within an indoor space. As the core component of this system, the ceiling speaker typically consists of a tweeter and a woofer. At the acoustic level, there is a close relationship between sound frequency and directivity; the higher the frequency, the stronger the directivity. Therefore, the tweeter exhibits strong directivity characteristics during sound emission.

[0003] Traditional ceiling speakers are typically installed parallel to the ceiling or wall. While this conventional installation method meets basic sound propagation requirements to some extent, it also significantly limits the speaker's coverage angle. In some open and complex spaces, such as large conference rooms and exhibition halls, certain areas struggle to achieve good sound coverage, resulting in dead zones and preventing some listeners from obtaining an ideal listening experience.

[0004] To address the aforementioned issue of limited coverage angle, engineers proposed an improved design where the tweeter is rotatable, while the woofer remains fixed. The rotatable tweeter allows for flexible adjustment of the sound propagation direction based on the actual spatial layout and usage requirements, effectively expanding the coverage of the high frequencies and optimizing the overall sound quality to some extent.

[0005] However, as the ceiling speakers have been used for a longer period, new problems have gradually emerged. Practical observation and professional testing have revealed that the woofer unit of the ceiling speaker, during operation, not only outputs low-frequency audio but also emits mid-range audio. Since the woofer unit was not originally designed to optimize for mid-range audio, this results in poor clarity and layering of the sound during mid-range audio output, thus affecting the overall sound quality. Furthermore, when the woofer unit emits mid-range audio, interference can easily occur between it and the tweeter unit during spatial propagation, causing distortion in certain areas and further weakening the system's performance.

[0006] In conclusion, although existing ceiling speakers have made some progress in the design of rotatable tweeters, the midrange audio output problem of the woofer still results in a deficiency in the overall performance of ceiling speakers. There is an urgent need to further improve the performance of the system through technological innovation and optimized design to meet people's ever-growing pursuit of high-quality audio experience. Utility Model Content

[0007] One advantage of this invention is that it provides an omnidirectional adjustable digital active ceiling speaker. Both the tweeter and woofer of the omnidirectional adjustable digital active ceiling speaker can be rotated, allowing users to flexibly adjust the angle of the two units according to actual needs to achieve the best sound output effect, so that the sound accurately covers the required area and avoids sound dead zones and interference.

[0008] Another advantage of this utility model is that it provides an omnidirectional adjustable digital active ceiling speaker. The omnidirectional adjustable digital active ceiling speaker achieves rotation by cooperating with the spherical arc surface of the inner shell and the spherical inner wall of the ceiling shell. The structure is simple and reasonable, reducing the difficulty of design and manufacturing.

[0009] Another advantage of this invention is that it provides an omnidirectional adjustable digital active ceiling speaker. During use, the omnidirectional adjustable digital active ceiling speaker features a spherical bass unit that is easy to rotate, allowing users to easily adjust it to meet the acoustic needs of different scenarios.

[0010] According to another aspect of the present invention, the present invention further provides an omnidirectional adjustable digital active ceiling speaker, the omnidirectional adjustable digital active ceiling speaker comprising:

[0011] A ceiling-mounted housing having a spherical receiving cavity;

[0012] A speaker module includes an inner housing and a speaker assembly. The speaker assembly is mounted on the inner housing. The inner housing has a spherical outer wall. The inner housing is concentrically mounted on the spherical cavity, and the spherical outer wall is damped and engaged with the inner wall of the spherical cavity, so that the speaker module rotates to a predetermined position within the ceiling housing and is damped and locked.

[0013] According to one embodiment of the present invention, the speaker assembly includes a woofer, a mounting bracket, and a tweeter. The woofer is embedded in the mounting bracket, and the tweeter is rotatably mounted in the mounting bracket. The mounting bracket is mounted on the inner housing and positions the woofer and the tweeter toward the opening of the spherical receiving cavity.

[0014] According to one embodiment of the present invention, the mounting bracket has a tweeter mounting cavity, the tweeter mounting cavity is spherical, the tweeter concentrically spherical surface is matched with the tweeter mounting cavity and its outer wall is damped and matched with the spherical inner wall of the tweeter mounting cavity, so that the tweeter maintains damped directional rotation in the tweeter mounting cavity and is damped and locked at a predetermined position.

[0015] According to one embodiment of the present invention, the inner wall of the spherical receiving cavity is covered with a silicone damping layer.

[0016] According to one embodiment of the present invention, the outer wall of the inner shell is covered with a silicone damping layer.

[0017] According to one embodiment of the present invention, the inner wall of the tweeter mounting cavity is covered with a silicone damping layer.

[0018] According to one embodiment of the present invention, the outer wall of the tweeter is covered with a silicone damping layer.

[0019] According to one embodiment of the present invention, the magnetic cover is magnetically attracted to the ceiling housing and closes the spherical receiving cavity.

[0020] According to one embodiment of the present invention, the ceiling housing further includes a plurality of mounting brackets, which are evenly disposed on the peripheral wall of the ceiling housing.

[0021] According to one embodiment of the present invention, the ceiling housing further includes a power amplifier unit, which is installed on one side of the ceiling housing and is electrically connected to the bass unit and the tweeter unit.

[0022] According to one embodiment of the present invention, the outer wall of the inner shell is interference-fitted with the inner wall of the spherical receiving cavity.

[0023] According to one embodiment of the present invention, the outer wall of the tweeter unit is interference-fitted with the inner wall of the tweeter unit mounting cavity.

[0024] According to another aspect of the present invention, the present invention further provides an omnidirectional adjustable digital active ceiling speaker, the omnidirectional adjustable digital active ceiling speaker comprising:

[0025] A ceiling-mounted housing having a spherical receiving cavity;

[0026] A speaker module includes an inner housing, a woofer, a mounting bracket, and a tweeter. The woofer is embedded in the mounting bracket, and the tweeter is rotatably mounted on the mounting bracket. The mounting bracket is mounted on the inner housing, oriented so that the woofer and tweeter face the opening of a spherical cavity. The inner housing has a spherical outer wall. The inner housing is concentrically mounted on the spherical cavity, and the spherical outer wall is damped against the inner wall of the spherical cavity, allowing the speaker module to rotate to a predetermined position within the ceiling housing and lock in place.

[0027] A magnetic cover is magnetically attached to the ceiling housing and seals the spherical receiving cavity.

[0028] According to another embodiment of the present invention, the mounting bracket has a tweeter mounting cavity, the tweeter mounting cavity is spherical, the tweeter concentric spherical surface is matched with the tweeter mounting cavity and its outer wall is damped and matched with the spherical inner wall of the tweeter mounting cavity, so that the tweeter maintains damped directional rotation in the tweeter mounting cavity and is damped and locked at a predetermined position.

[0029] According to another embodiment of the present invention, the inner wall of the spherical receiving cavity is covered with a silicone damping layer, the outer wall of the inner shell is covered with a silicone damping layer, the inner wall of the tweeter mounting cavity is covered with a silicone damping layer, and the outer wall of the tweeter is covered with a silicone damping layer.

[0030] According to another embodiment of the present invention, the outer wall of the inner shell is interference-fitted with the inner wall of the spherical receiving cavity.

[0031] According to another embodiment of the present invention, the outer wall of the tweeter unit is interference-fitted with the inner wall of the tweeter unit mounting cavity.

[0032] The further objectives and advantages of this invention will become fully apparent from the following description and accompanying drawings. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of the overall structure of the omnidirectional adjustable digital active ceiling speaker according to an embodiment of the present invention.

[0034] Figure 2 This is a schematic diagram of the internal structure of the omnidirectional adjustable digital active ceiling speaker according to an embodiment of the present invention.

[0035] Figure 3 This is an exploded structural diagram of the omnidirectional adjustable digital active ceiling speaker according to an embodiment of the present invention.

[0036] Figure 4 This is an exploded structural diagram of the speaker assembly of the omnidirectional adjustable digital active ceiling speaker according to an embodiment of the present invention.

[0037] Figure 5 This is a schematic diagram of the movement range of the inner housing of an omnidirectional adjustable digital active ceiling speaker according to an embodiment of the present invention.

[0038] Figure 6This is a schematic diagram of the active range of a tweeter unit of an omnidirectional adjustable digital active ceiling speaker according to an embodiment of the present invention.

[0039] Figure 7 This is a schematic diagram of the operation of the omnidirectional adjustable digital active ceiling speaker according to an embodiment of the present invention. Detailed Implementation

[0040] The following description is intended to disclose the present invention so that those skilled in the art can implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art. The basic principles of the present invention defined in the following description can be applied to other embodiments, modifications, improvements, equivalents, and other technical solutions that do not depart from the spirit and scope of the present invention.

[0041] Those skilled in the art should understand that, in the disclosure of this utility model, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the above terms should not be construed as limitations on this utility model.

[0042] It is understood that the term "a" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element can be one, while in another embodiment, the number of the element can be multiple, and the term "a" should not be understood as a limitation on the number.

[0043] Reference Appendix Figure 1 To be continued Figure 4 As shown in the illustration, the omnidirectional adjustable digital active ceiling speaker 1 of this application includes a ceiling housing 10, a speaker module 20, and a magnetic cover 30. The speaker module 20 is concentrically spherically mounted on the ceiling housing 10, and the magnetic cover 30 is magnetically attached to the ceiling housing 10 to maintain the appearance integrity of the omnidirectional adjustable digital active ceiling speaker 1. The speaker module 20 can rotate within the ceiling housing 10 at a predetermined angle with its own center as the origin, and is damped and locked in that position after rotation. That is, the speaker module 20 is configured to be rotatably mounted on the ceiling housing 10, and the sound emitted by the speaker module 20 is directional to adjust the sound to the angle required by the user, achieving the best sound output effect, accurately covering the required area, and avoiding sound dead zones and interference.

[0044] In detail, the ceiling-mounted housing 10 has a spherical cavity 11, which is a hollow spherical space. The plane containing the center of the spherical space is defined as the reference plane, offset upwards by a predetermined distance as the opening reference plane. In other words, the opening of the ceiling-mounted housing 10 is a horizontal plane, and the spherical cavity 11 is formed by extending the opening into the ceiling-mounted housing 10. It can be understood that the overall volume of the spherical cavity 11 is approximately three-quarters the volume of a sphere of the same diameter, rather than a complete sphere. The speaker module 20 is concentrically assembled within the spherical cavity 11 to allow rotation within it. The sound-emitting unit of the speaker module 20 propagates outwards through this opening.

[0045] Further, see attached document. Figure 5 As shown, a silicone damping layer 61 is installed on the inner wall of the spherical cavity 11, and the silicone damping layer 61 uniformly covers the entire inner wall of the spherical cavity 11. The speaker module 20 further includes an inner housing 21 and a speaker assembly 22. The speaker assembly 22 is embedded in the inner housing 21. The inner housing 21 has a spherical outer wall 211, the diameter of which is slightly larger than the diameter of the spherical cavity 11, so that the inner housing 21 can be interference-fitted into the spherical cavity 11 through the spherical outer wall 211. More notably, a silicone damping layer 62 is also provided on the spherical outer wall 211. The silicone damping layer 62 on the inner wall of the spherical cavity 11 and the silicone damping layer 61 on the spherical outer wall 211 are tightly installed with an interference fit. The elastic restoring force generated by the compression deformation of the silicone keeps the contact surface pressure at the maximum static friction force to maintain the stability of the inner shell 21 within the spherical cavity 11. At the same time, because the inner shell 21 and the spherical cavity 11 are concentrically assembled, the inner shell 21 can rotate freely within the ceiling housing 10. During rotation, the silicone damping layer 61 and the silicone damping layer 62 undergo elastic deformation, allowing the inner shell 21 to rotate omnidirectionally and stop when it reaches a predetermined position. At this time, the elastic restoring force of the silicone damping layer 61 and the silicone damping layer 62 re-uniforms the contact surface pressure, restoring the maximum static friction to ensure that the relative position of the speaker module 20 and the ceiling housing 10 remains fixed.

[0046] The ceiling housing 10 also includes a plurality of mounting brackets 12, which are evenly arranged around the ceiling body 10 for mounting on the ceiling. Those skilled in the art should understand that the mounting brackets 12 can be installed in various ways to meet different installation needs, including but not limited to the installation forms listed above.

[0047] The ceiling housing 10 may also include a power amplifier unit 13 to adapt to different user needs, further improve the overall system performance of the speaker, and enhance the user experience.

[0048] The speaker assembly 22 further includes a woofer 221, a tweeter 222, and a mounting bracket 223. The mounting bracket 223 has mounting holes. The woofer 221 is nested in the mounting holes of the mounting bracket 223. The mounting bracket 223 is embedded in the inner housing 21, so that the woofer 221 can be hidden inside the inner housing 21. The woofer 221 can rotate with the inner housing 21 within the spherical cavity 11, so that the sound output of the woofer 221 can be directed to different angles, greatly improving the accurate sound coverage of the required area and achieving the best sound output effect.

[0049] like Figure 6 As shown, the mounting bracket 223 also has a tweeter mounting cavity 224, which is disposed on one side of the woofer 221. The tweeter mounting cavity 224 is a hollow spherical space. The plane where the center of the spherical space is located is defined as the reference plane, offset upward by a predetermined distance as the opening reference plane. In other words, the opening reference plane coincides with the plane where the top surface of the mounting bracket 223 is located, with the opening extending into the mounting bracket 223 to form the tweeter mounting cavity 224. It can be understood that the overall volume of the tweeter mounting cavity 224 is approximately three-quarters the volume of a sphere of the same diameter, rather than a complete sphere. The tweeter 222 is concentrically spherically fitted into the tweeter mounting cavity 224 to facilitate the rotation of the tweeter 222 within the tweeter mounting cavity 224. It is understood that the sound-emitting unit of the tweeter 222 is oriented outward through the top surface of the mounting bracket 223, which is consistent with the propagation direction of the woofer 221.

[0050] A silicone damping layer 63 is installed on the outer wall of the tweeter 222, and the silicone damping layer 63 evenly covers the entire outer wall of the tweeter 222. A silicone damping layer 64 is installed on the inner wall of the tweeter mounting cavity 224, and the silicone damping layer 64 evenly covers the entire inner wall of the tweeter mounting cavity 224. The diameter of the outer wall of the tweeter 222 is slightly larger than the diameter of the tweeter mounting cavity 224, so as to allow the outer wall of the tweeter 222 to be interference-fitted into the tweeter mounting cavity 224.

[0051] The silicone damping layer 64 on the inner wall of the tweeter mounting cavity 224 and the silicone damping layer 63 on the tweeter 222 are tightly installed by an interference fit. The elastic restoring force generated by the compression deformation of the silicone maintains the contact surface pressure at the maximum static friction, thereby keeping the tweeter 222 stable within the tweeter mounting cavity 224. At the same time, because the tweeter mounting cavity 224 and the tweeter 222 are concentrically spherically assembled, the tweeter 222 can rotate freely within the tweeter mounting cavity 224. During rotation, the silicone damping layer 63 and the silicone damping layer 64 undergo elastic deformation, allowing the tweeter 222 to rotate omnidirectionally and stop when it reaches a predetermined position. At this time, the elastic restoring force of the silicone damping layer 63 and the silicone damping layer 64 re-uniforms the contact surface pressure, restoring the maximum static friction to ensure that the relative position of the tweeter 222 and the mounting bracket 223 remains fixed. Furthermore, this allows the tweeter 222 to emit sound at different angles, greatly improving the accuracy of sound coverage of the required area and achieving the best sound output effect.

[0052] Reference Appendix Figure 7 The diagram shown is a schematic of the operation of the omnidirectional adjustable digital active ceiling speaker 1. When the omnidirectional adjustable digital active ceiling speaker 1 is installed on the ceiling, the woofer 221 and the tweeter 222 work together and can be oriented towards any position in the room. Both the woofer 221 and the tweeter 222 are omnidirectional, allowing the user to flexibly adjust the angle of the two units according to actual needs to achieve the best sound output effect, ensuring that the sound accurately covers the required area and avoiding sound dead zones and interference.

[0053] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the accompanying drawings are merely examples and do not limit the present invention. The purpose of the present invention has been fully and effectively achieved. The functions and structural principles of the present invention have been shown and explained in the embodiments. Without departing from the stated principles, the implementation of the present invention may have any variations or modifications.

Claims

1. An omnidirectional adjustable digital active ceiling speaker, characterized in that, include: A ceiling-mounted housing having a spherical receiving cavity; A speaker module includes an inner housing and a speaker assembly. The speaker assembly is mounted on the inner housing. The inner housing has a spherical outer wall. The inner housing is concentrically mounted on the spherical cavity, and the spherical outer wall is damped and engaged with the inner wall of the spherical cavity, so that the speaker module rotates to a predetermined position within the ceiling housing and is damped and locked.

2. The omnidirectional adjustable digital active ceiling speaker according to claim 1, wherein the speaker assembly includes a woofer, a mounting bracket, and a tweeter, the woofer being embedded in the mounting bracket, the tweeter being rotatably mounted in the mounting bracket, the mounting bracket being mounted on the inner housing and oriented the woofer and the tweeter toward the opening of the spherical receiving cavity.

3. The omnidirectional adjustable digital active ceiling speaker according to claim 2, wherein the mounting bracket has a tweeter mounting cavity, the tweeter mounting cavity is spherical, the tweeter concentrically spherical surface is matched with the tweeter mounting cavity and its outer wall is damped and matched with the spherical inner wall of the tweeter mounting cavity, so that the tweeter maintains damped directional rotation in the tweeter mounting cavity and is damped and locked at a predetermined position.

4. The omnidirectional adjustable digital active ceiling speaker according to claim 3, wherein the inner wall of the spherical receiving cavity is covered with a silicone damping layer.

5. The omnidirectional adjustable digital active ceiling speaker according to claim 3, wherein the outer wall of the inner housing is covered with a silicone damping layer.

6. The omnidirectional adjustable digital active ceiling speaker according to claim 4, wherein the outer wall of the inner housing is covered with a silicone damping layer.

7. The omnidirectional adjustable digital active ceiling speaker according to claim 5, wherein the inner wall of the spherical receiving cavity is covered with a silicone damping layer.

8. The omnidirectional adjustable digital active ceiling speaker according to claim 6, wherein the inner wall of the tweeter mounting cavity is covered with a silicone damping layer.

9. The omnidirectional adjustable digital active ceiling speaker according to claim 8, wherein the outer wall of the tweeter is covered with a silicone damping layer.

10. The omnidirectional adjustable digital active ceiling speaker according to claim 9, further comprising a magnetic cover, the magnetic cover being magnetically attracted to the ceiling housing and sealing the spherical receiving cavity.

11. The omnidirectional adjustable digital active ceiling speaker according to claim 7, further comprising a magnetic cover, the magnetic cover being magnetically attracted to the ceiling housing and sealing the spherical receiving cavity.

12. The omnidirectional adjustable digital active ceiling speaker according to claim 10, wherein the ceiling housing further includes a plurality of mounting brackets, the mounting brackets being evenly disposed on the peripheral wall of the ceiling housing.

13. The omnidirectional adjustable digital active ceiling speaker according to claim 12, wherein the ceiling housing further includes a power amplifier unit, the power amplifier unit is installed on one side of the ceiling housing, and the power amplifier unit is electrically connected to the woofer unit and the tweeter unit.

14. The omnidirectional adjustable digital active ceiling speaker according to claim 9, wherein the outer wall of the inner housing is interference-fitted with the inner wall of the spherical receiving cavity.

15. The omnidirectional adjustable digital active ceiling speaker according to claim 14, wherein the outer wall of the tweeter unit is interference-fitted with the inner wall of the tweeter unit mounting cavity.

16. An omnidirectional adjustable digital active ceiling speaker, characterized in that, include: A ceiling-mounted housing having a spherical receiving cavity; A speaker module includes an inner housing, a woofer, a mounting bracket, and a tweeter. The woofer is embedded in the mounting bracket, and the tweeter is rotatably mounted on the mounting bracket. The mounting bracket is mounted on the inner housing, oriented so that the woofer and tweeter face the opening of a spherical cavity. The inner housing has a spherical outer wall. The inner housing is concentrically mounted on the spherical cavity, and the spherical outer wall is damped against the inner wall of the spherical cavity, allowing the speaker module to rotate to a predetermined position within the ceiling housing and lock in place. A magnetic cover is magnetically attached to the ceiling housing and seals the spherical receiving cavity.

17. The omnidirectional adjustable digital active ceiling speaker according to claim 16, wherein the mounting bracket has a tweeter mounting cavity, the tweeter mounting cavity is spherical, the tweeter concentrically spherically aligns with the tweeter mounting cavity and its outer wall is damped against the spherical inner wall of the tweeter mounting cavity, so that the tweeter maintains damped directional rotation within the tweeter mounting cavity and is damped locked at a predetermined position.

18. The omnidirectional adjustable digital active ceiling speaker according to claim 17, wherein the inner wall of the spherical receiving cavity is covered with a silicone damping layer, the outer wall of the inner shell is covered with a silicone damping layer, the inner wall of the tweeter mounting cavity is covered with a silicone damping layer, and the outer wall of the tweeter is covered with a silicone damping layer.

19. The omnidirectional adjustable digital active ceiling speaker according to claim 18, wherein the outer wall of the inner housing is interference-fitted with the inner wall of the spherical receiving cavity.

20. The omnidirectional adjustable digital active ceiling loudspeaker according to claim 18, wherein the outer wall of the tweeter unit is interference-fitted with the inner wall of the tweeter unit mounting cavity.

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