Rotary sound box for outdoor performance

Abstract

The invention relates to the technical field of sound equipment, in particular to a rotary sound equipment for outdoor performance, which comprises a shell and a bearing plate fixed at the inner bottom of the shell, and is characterized in that the shell is of a circumferential full-surrounding mesh enclosure structure; the loudspeaker assembly is rotationally assembled at the top of the bearing plate, and a gap is reserved between the loudspeaker assembly and the inner wall of the shell; the top plate is fixedly assembled at the top of the loudspeaker assembly, the annular outer wall of the top plate is attached to the inner wall of the shell, a surrounding space is formed among the bearing plate, the top plate and the shell, two slidable functional strips are installed at the top of the bearing plate, and the surrounding space is divided into a heat dissipation channel and an acoustic channel by the two functional strips; when the loudspeaker assembly rotates, hot air in the heat dissipation channel can be forced to perform convection with external air, and the acoustic channel is separated from the heat dissipation channel, so that impact interference of airflow to the loudspeaker assembly is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of audio, in particular to a rotary audio system for outdoor performances. Background Art

[0002] Outdoor performance audio is an equipment system used to provide high-quality audio playback in outdoor environments. With different outdoor needs, the audio needs to be rotated. The rotating audio can adjust the angle according to the changes in the stage and audience area to ensure that the sound covers the entire venue. At the same time, the rotating audio can accurately project the sound to the required area to avoid interfering with the clean area. The rotating audio can also achieve dynamic sound effects to enhance the immersiveness of the performance. Adding a rotating module to the audio can maximize the use of the audio.

[0003] In the prior art, when outdoor audio systems are working under long-term high-intensity conditions, the flowing air generated by the cooling system (such as a fan or air duct) may affect the operation of the speakers of the audio system, mainly in the following three aspects:

[0004] 1. Airflow noise: The airflow generated by the fan or air duct may directly pass through the diaphragm or horn of the speaker, generating additional noise;

[0005] 2. Sound wave distortion: Air flow may interfere with the propagation path of sound waves, causing sound distortion or attenuation;

[0006] 3. Diaphragm vibration interference: If the airflow blows directly to the speaker diaphragm, it may affect the vibration of the diaphragm and cause a decline in sound quality. Summary of the invention

[0007] The present invention provides a rotary sound system for outdoor performances. When a speaker assembly rotates, hot air in a heat dissipation channel can be forced to convect with external air, and the acoustic channel is separated from the heat dissipation channel, thereby reducing the impact and interference of airflow on the speaker assembly.

[0008] In order to achieve the above object, the present invention provides the following technical solutions:

[0009] A rotary speaker for outdoor performances, comprising:

[0010] An outer shell and a bearing plate fixed on the inner bottom thereof, wherein the outer shell is a circumferentially fully surrounding mesh structure; a speaker assembly rotatably mounted on the top of the bearing plate, with a gap between the speaker assembly and the inner wall of the outer shell; a top plate fixedly mounted on the top of the speaker assembly, wherein the annular outer wall of the top plate fits with the inner wall of the outer shell, and an enclosed space is formed between the bearing plate, the top plate and the outer shell, and two slidable functional strips are installed on the top of the bearing plate, and the two functional strips divide the enclosed space into a heat dissipation channel and an acoustic channel, and the heat dissipation channel is a notched circular channel with a variable circumference.

[0011] Optionally, two guide blocks are fixedly installed on the outer wall of the speaker assembly, and the two guide blocks correspondingly control the sliding of two functional strips. When the speaker assembly rotates clockwise or counterclockwise, the guide block will drive one of the functional strips to slide to compress the heat dissipation channel, forcing the air in the heat dissipation channel to flow outward through the mesh cover structure. The supporting plate is also designed with a return structure for controlling the resetting of the functional strip.

[0012] Optionally, the return structure includes a limit groove opened on the top of the supporting plate, a limit block is slidably installed inside the limit groove, the top of the limit block is fixedly connected to the bottom of the functional strip, and two arc springs are fixedly installed inside the limit groove. The two arc springs are symmetrically designed, and the free ends of the two arc springs are fixedly connected to the outer wall of the limit block.

[0013] Optionally, the thickness of the inner wall of the shell gradually increases from bottom to top, and the cross-sectional diameter of the heat dissipation space gradually decreases from bottom to top.

[0014] Optionally, when the two arc springs are in a reset state, the functional strip is in an initial state, and a maximum angle B of the sound output by the speaker in the speaker assembly is smaller than an angle C formed by the two functional strips in the initial state.

[0015] Optionally, a heat collection cavity is formed between the top of the top plate and the inner top of the shell, and a heat dissipation hole is opened in the area where the heat dissipation channel is mapped on the outer wall of the top plate, and the annular outer wall of the heat collection cavity is designed with switchable convection holes.

[0016] Optionally, the cross-section of the acoustic channel is arc-shaped, wherein the arc portion of the arc is formed by a portion of the annular inner wall of the outer shell.

[0017] Optionally, a servo motor is installed on the inner top of the carrier plate, and the output end of the servo motor is transmission-connected to the bottom of the speaker assembly via a coupling, and the servo motor can control the reciprocating swing of the speaker assembly.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. The speaker assembly is located in the surrounding space, and the two functional strips divide the surrounding space into a heat dissipation channel and an acoustic channel, which can prevent the airflow in the heat dissipation channel from interfering with the formation of the acoustic path. The formation of the heat dissipation channel can enable hot air to be discharged from the side or top.

[0020] Second, due to the sliding properties of the two functional strips, the heat dissipation channel is a notched circular channel with a variable circumference. When the sliding of the functional strips is controlled, the functional strips can compress the volume of the heat dissipation channel, so that the hot air can be forced to be discharged from the mesh cover structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the external three-dimensional structure of the present invention;

[0022] Figure 2 For the present invention Figure 1 A right view structural diagram of ;

[0023] Figure 3 For the present invention Figure 2 Sectional view at AA in the middle;

[0024] Figure 4 It is a schematic cross-sectional view between the speaker assembly and the heat dissipation channel in the present invention;

[0025] Figure 5 It is a schematic diagram of the internal three-dimensional structure of the present invention;

[0026] Figure 6 This is a schematic diagram of the structure disassembly after removing the outer shell of the present invention;

[0027] Figure 7 A perspective view of the position structure of the speaker assembly in the present invention;

[0028] Figure 8 It is a diagram showing the angle B and the angle C in the present invention;

[0029] Fig. 9 It is a schematic diagram of the chimney of the cone ring in the present invention.

[0030] In the figure: 1. outer shell; 2. speaker assembly; 3. top plate; 4. bearing plate; 5. limit groove; 6. function strip; 7. guide block; 8. arc spring; 9. limit block; 11. servo motor. DETAILED DESCRIPTION

[0031] The following will be combined with the 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 described embodiments 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 creative work are within the scope of protection of the present invention.

[0032] See also Figures 1 to 9 The present invention provides a technical solution: an outdoor performance rotary speaker, comprising:

[0033] An outer shell 1 and a supporting plate 4 fixed on the inner bottom thereof, wherein the outer shell 1 is a circumferentially fully surrounding mesh structure; a loudspeaker assembly 2 is rotatably mounted on the top of the supporting plate 4, with a gap being left between the loudspeaker assembly 2 and the inner wall of the outer shell 1; a top plate 3 is fixedly mounted on the top of the loudspeaker assembly 2, with the annular outer wall of the top plate 3 fitting with the inner wall of the outer shell 1, forming an enclosed space between the supporting plate 4, the top plate 3 and the outer shell 1, and two slidable functional strips 6 are installed on the top of the supporting plate 4, the two functional strips 6 divide the enclosed space into a heat dissipation channel and an acoustic channel, and the heat dissipation channel is a notched circular channel with a variable circumference.

[0034] In the prior art, rotating speakers will be disturbed by air when working, resulting in problems such as airflow noise and sound wave distortion. At the same time, due to the rotation of some speakers, the heat problem will become serious, and the heat dissipation system of the speakers is generally a fan and other structures. In addition to taking away heat, the flowing air may also affect the output of the speaker. In this case, an enclosed space is formed, and the speaker assembly 2 is located in the enclosed space, and the two functional strips 6 divide the enclosed space into a heat dissipation channel and an acoustic channel, which can prevent the airflow in the heat dissipation channel from interfering with the formation of the acoustic path. The formation of the heat dissipation channel can discharge hot air from the side or top. Secondly, due to the sliding properties of the two functional strips 6, the heat dissipation channel is a notched circular channel with a variable circumference. When the sliding of the functional strip 6 is controlled, the functional strip 6 can compress the volume of the heat dissipation channel, so that the hot air can be forced to be discharged from the mesh structure.

[0035] The speaker assembly 2 can rotate inside the housing 1, and the sound propagation in the acoustic channel of the speaker assembly 2 will not be disturbed. When the outdoor performance audio system is working, the audio system can rotate or have an adjustable angle, which can optimize the sound coverage, improve flexibility, adapt to complex venue requirements, and enhance user experience.

[0036] In a more preferred embodiment, two guide blocks 7 are fixedly installed on the outer wall of the speaker assembly 2. The two guide blocks 7 control the sliding of the two functional strips 6. When the speaker assembly 2 rotates clockwise or counterclockwise, the guide block 7 drives one of the functional strips 6 to slide, so as to compress the heat dissipation channel and force the air in the heat dissipation channel to flow outward through the mesh cover structure. The bearing plate 4 is also designed with a return structure for controlling the reset of the functional strip 6. Please refer to Figures 3 to 8In this embodiment, when the speaker assembly 2 rotates, it will drive the two guide blocks 7 to displace synchronously. The two guide blocks 7 respectively conflict with the functional strips 6. The two guide blocks 7 are located between the two functional strips 6. When the speaker assembly 2 rotates, one of the guide blocks 7 will move away from a nearby functional strip 6, and the other guide block 7 will conflict with and drive the functional strip 6 to displace, so that the functional strip 6 can compress the space of the heat dissipation channel and improve the heat dissipation efficiency. Since the outer shell 1 is a mesh cover structure, the air will be discharged outward through the mesh holes, and the functional strip 6 will not interfere with the normal use of the acoustic channel during the rotation process, thereby ensuring the normal operation of the speaker assembly 2.

[0037] Furthermore, the return structure includes a limit groove 5 opened on the top of the bearing plate 4, a limit block 9 is slidably installed inside the limit groove 5, the top of the limit block 9 is fixedly connected to the bottom of the functional strip 6, and two arc springs 8 are fixedly installed inside the limit groove 5. The two arc springs 8 are symmetrically designed, and the free ends of the two arc springs 8 are fixedly connected to the outer wall of the limit block 9. Please refer to Figure 3 and Figure 6 In this embodiment, the arc spring 8 is hidden and assembled inside the limit groove 5, and with the support of the two arc springs 8, the function bar 6 and the guide block 7 are in conflict with each other. When the function bar 6 is displaced, the relative arc spring 8 will be compressed, thereby providing kinetic energy for the subsequent resetting of the function bar 6.

[0038] Furthermore, the thickness of the inner wall of the housing 1 increases gradually from bottom to top, and the cross-sectional diameter of the heat dissipation space decreases gradually from bottom to top. Fig. 9 As shown in the schematic diagram, when the speaker assembly 2 is in a stationary state, the heat dissipation channel is a conical ring-shaped space, so that the chimney effect can be used to increase the rising driving force of the hot air in the heat dissipation channel. Since the main heat-generating parts of the speaker assembly 2 are the voice coil and the magnet, which are usually located at the bottom of the speaker assembly 2 and the side near the bottom, the heat dissipation space can use the chimney effect to accelerate the heat at the bottom to be transported upward. Since the inner wall thickness of the outer shell 1 gradually increases from bottom to top, the cross-sectional diameter of the heat dissipation space gradually decreases from bottom to top, so that the heat dissipation space forms a conical ring-shaped chimney. The conical design can increase the cross-sectional area of ​​the bottom of the chimney and reduce the airflow velocity, while reducing the cross-sectional area of ​​the top of the chimney, thereby increasing the airflow velocity and enhancing the chimney effect. It can also reduce the dust accumulation at the bottom of the chimney, making it easier to clean.

[0039] On the basis of the return structure embodiment, when the two arc springs 8 are in the reset state, the function strip 6 is in the initial state, and the maximum angle B of the speaker output of the speaker assembly 2 is smaller than the angle C formed by the two function strips 6 in the initial state. Figure 8 By designing the position of the functional strip 6, the interference of the airflow on the acoustic channel can be avoided to a greater extent, and a buffer distance is provided.

[0040] A heat collecting cavity is formed between the top of the top plate 3 and the inner top of the outer shell 1, and heat dissipation holes are opened in the area where the heat dissipation channel is mapped on the outer wall of the top plate 3. The annular outer wall of the heat collecting cavity is designed with switchable convection holes. By designing the heat collecting cavity, the hot air in the heat dissipation channel climbs upward under the chimney effect until it enters the heat collecting cavity. By designing the convection holes, the external gas and the internal gas convect, thereby accelerating the transfer of hot air in the heat collecting cavity.

[0041] The cross section of the acoustic channel is arc-shaped, wherein the arc portion of the arc is formed by a portion of the annular inner wall of the housing 1, such as Figure 3 and Figure 4 The area of ​​the acoustic channel is large, which can alleviate the impact of external air on the bell mouth of the speaker assembly 2 and has a high airflow impact resistance capability.

[0042] Furthermore, a servo motor 11 is installed on the inner top of the carrier plate 4 , and the output end of the servo motor 11 is transmission-connected to the bottom of the speaker assembly 2 via a coupling, so that the servo motor 11 can control the speaker assembly 2 to swing back and forth.

[0043] By utilizing the above structures, when the speaker assembly 2 rotates, the hot air in the heat dissipation channel can be forced to convect with the external air, and the acoustic channel is separated from the heat dissipation channel, thereby reducing the impact and interference of the airflow on the speaker assembly.

[0044] The standard parts used in this embodiment can be purchased directly from the market, and the non-standard structural components recorded in the specification and the drawings can also be directly processed according to the existing technical common sense without any doubt. At the same time, the connection method of each component adopts the mature conventional means in the prior art, and the machinery, parts and equipment all adopt the conventional models in the prior art, so no specific description will be given here.

[0045] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A rotary speaker for outdoor performances, characterized by: include: An outer shell (1) and a bearing plate (4) fixed to the inner bottom thereof, wherein the outer shell (1) is a circumferentially fully surrounding mesh structure; A loudspeaker assembly (2) is rotatably mounted on the top of a carrier plate (4), with a gap being left between the loudspeaker assembly (2) and the inner wall of the housing (1); A top plate (3) is fixedly mounted on the top of the loudspeaker assembly (2), the annular outer wall of the top plate (3) is in contact with the inner wall of the outer shell (1), an enclosed space is formed between the support plate (4), the top plate (3) and the outer shell (1), two slidable functional strips (6) are mounted on the top of the support plate (4), the two functional strips (6) divide the enclosed space into a heat dissipation channel and an acoustic channel, and the heat dissipation channel is a notched circular channel with a variable circumference.

2. The outdoor performance rotary speaker according to claim 1, characterized in that: Two guide blocks (7) are fixedly mounted on the outer wall of the speaker assembly (2), and the two guide blocks (7) control the sliding of two functional strips (6) respectively. When the speaker assembly (2) rotates clockwise or counterclockwise, the guide block (7) drives one of the functional strips (6) to slide, thereby compressing the heat dissipation channel and forcing the air in the heat dissipation channel to flow outward through the mesh cover structure. The support plate (4) is also designed with a return structure for controlling the reset of the functional strip (6).

3. The outdoor performance rotary speaker according to claim 2, characterized in that: The return structure comprises a limit groove (5) opened on the top of the bearing plate (4), a limit block (9) is slidably installed inside the limit groove (5), the top of the limit block (9) is fixedly connected to the bottom of the functional strip (6), and two arc springs (8) are fixedly installed inside the limit groove (5), the two arc springs (8) are symmetrically designed, and the free ends of the two arc springs (8) are fixedly connected to the outer wall of the limit block (9).

4. The outdoor performance rotary speaker according to claim 2, characterized in that: The thickness of the inner wall of the outer shell (1) gradually increases from bottom to top, and the cross-sectional diameter of the heat dissipation space gradually decreases from bottom to top.

5. The outdoor performance rotary speaker according to claim 3, characterized in that: When the two arc springs (8) are in a reset state, the functional strip (6) is in an initial state, and the maximum angle B at which the loudspeaker in the loudspeaker assembly (2) outputs sound is smaller than the included angle C formed by the two functional strips (6) in the initial state.

6. The outdoor performance rotary speaker according to claim 2, characterized in that: A heat collection cavity is formed between the top of the top plate (3) and the inner top of the outer shell (1), and a heat dissipation hole is opened in the area where the heat dissipation channel is mapped on the outer wall of the top plate (3), and the annular outer wall of the heat collection cavity is designed with a switchable convection hole.

7. The outdoor performance rotary speaker according to claim 6, characterized in that: The cross section of the acoustic channel is arc-shaped, wherein the arc portion of the arc is formed by a portion of the annular inner wall of the housing (1).

8. The outdoor performance rotary speaker according to any one of claims 1 to 7, characterized in that: A servo motor (11) is installed at the inner top of the carrier plate (4); the output end of the servo motor (11) is transmission-connected to the bottom of the speaker assembly (2) via a coupling; and the servo motor (11) can control the speaker assembly (2) to swing back and forth.

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