Linear array column type active sound box

Abstract

The utility model discloses a linear array column type active sound box. The linear array column type active sound box comprises a box body, a fixed bracket, a low pitch unit group, a high pitch driving unit and a linear array horn matched with the high pitch driving unit, the bass unit group is linearly embedded in the top surface of the box body, the top surface of the box body is provided with a fixing groove, the bottom end of the fixing support is connected with the fixing groove, and the top of the fixing support is integrally connected with the linear array horn. The high pitch driving unit is connected with the linear array horn, so that the high pitch driving unit is located above the low pitch unit group, and the low pitch unit group and the high pitch driving unit are located on the same axis. The fixed support and the linear array horn are integrally arranged, so that the high-pitch driving unit and the low-pitch unit group can be linearly installed on the same axis, and compared with a traditional linear array group, installation is simplified to the maximum extent, and the manual debugging process is simplified. Therefore, long-distance sound projection is realized.

Description

Technical Field

[0001] The utility model relates to the technical field of sound boxes, in particular to a line array column type active sound box. Background Art

[0002] Column speakers are a type of line source speakers. Point source speakers diffuse in the form of spherical waves. When the distance is doubled, the sound pressure level attenuates by 6 dB. Line source speakers propagate in the form of cylindrical waves. The energy is concentrated at its acoustic center point. When the distance is doubled, the attenuation is only 3 dB. This attenuation characteristic allows line sound sources to achieve better uniform coverage at the same coverage distance.

[0003] In the prior art, in order to ensure accurate coverage of the audience area, the speakers are usually placed at an angle downward. If the speakers are installed vertically, there will be a large attenuation in the back field and uneven sound pressure level; if the installation point of the speakers is raised to improve the uniformity of the sound field, the sound phase positioning will be inconsistent with the speaker's position, causing discomfort in the listening experience. Utility Model Content

[0004] The purpose of the utility model is to provide a line array column type active sound box to solve one or more technical problems existing in the prior art and at least provide a beneficial choice or create conditions.

[0005] The utility model solves the technical problem by providing a line array column type active sound box, including a box body, a fixing bracket, a bass unit group, a tweeter drive unit and a line array horn matched with the tweeter drive unit;

[0006] The bass unit group is linearly embedded in the top surface of the box body, the top surface of the box body is provided with a fixing groove, the bottom end of the fixing bracket is connected to the fixing groove, and the top of the fixing bracket is integrally connected to the line array horn;

[0007] The tweeter drive unit is connected to the line array horn so that the tweeter drive unit is located above the woofer unit group, and the woofer unit group and the tweeter drive unit are on the same axis.

[0008] Furthermore, the line array horn includes: a radiating surface and a guide plate;

[0009] The radiation surface is provided with a mounting hole, the tweeter drive unit is installed in the mounting hole, and the radiation surface is arranged in an arc shape;

[0010] The opposite sides of the radiation surface are connected to the drainage sheet, a plurality of drainage holes are arranged on the drainage sheet, and the drainage sheet is arranged in an arc shape.

[0011] Furthermore, the line array horn is also provided with a partition, the partition is laid along the arrangement direction of the tweeter drive unit, the tweeter drive unit is located between two of the partitions, and the partition is connected to the radiation surface.

[0012] Further, the fixing bracket includes: a fixing column and a fixing member;

[0013] The bottom end of the fixing column is plugged into the fixing groove, the top end of the fixing column is connected to the drainage sheet, the side wall of the fixing column is connected to the fixing piece, and the fixing piece is respectively connected to the bottom surface of the drainage sheet and the bottom surface of the radiation surface.

[0014] Furthermore, the line array column type active speaker also includes: a control module, a high frequency processing module and a low frequency processing module;

[0015] The control module is connected to the high-frequency processing module and the low-frequency processing module respectively, the high-frequency processing module is connected to the tweeter driving unit, and the low-frequency processing module is connected to the bass unit group.

[0016] Furthermore, the line array column type active speaker also includes: an ambient sound data input port;

[0017] The ambient sound data input port is connected to the input end of the control module, and the control module is connected to an external ambient sound collection device through the ambient sound data input port, and the ambient sound data collected by the external ambient sound collection device.

[0018] Furthermore, the tweeter drive unit uses 24 25mm titanium film neodymium magnet drive units.

[0019] Furthermore, the bass unit group includes a bass drive unit; the bass drive unit adopts 6 6.5-inch 38mm voice coil neodymium cone drive units.

[0020] Furthermore, the bass drive units are arranged at intervals, and the distance between the two bass drive units is 168 mm.

[0021] Furthermore, the tweeter drive units are arranged at intervals, and the distance between the two tweeter drive units is 42.3 mm.

[0022] The beneficial effects of the utility model are as follows: a line array horn matched with the tweeter drive unit is provided, and by integrating the fixing bracket with the line array horn, it is convenient to linearly install the tweeter drive unit and the woofer group on the same axis. Compared with the traditional line array group, the installation is simplified to the greatest extent, and the manual debugging process is simplified.

[0023] This speaker has typical line array diffusion characteristics in the vertical direction, with a wide sound field and effective coverage distance. The linear installation of the tweeter drive unit and the woofer group can meet the long-distance projection requirements to solve the technical problem of achieving long-distance sound projection. It is particularly suitable for large sound field application environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a partial structural diagram of a line array column type active sound box provided by an embodiment of the utility model;

[0025] Figure 2 It is a partial structural diagram of a line array horn of a line array column type active speaker provided by an embodiment of the utility model;

[0026] Figure 3 It is a partial structural diagram of a line array column type active speaker provided by another embodiment of the utility model.

[0027] Figure numbers: 100, box body, 110, fixing groove, 200, fixing bracket, 210, fixing column, 220, fixing part, 300, woofer group, 310, bass drive unit, 400, tweeter drive unit, 410, line array horn, 411, radiating surface, 412, drainage sheet, 413, drainage hole, 414, dividing piece, 415, mounting hole. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and cannot be understood as limiting the present utility model.

[0029] It should be noted that although the functional modules are divided in the system diagram, in some cases, the steps shown or described may be performed in a different order than the module division in the system or the order in the flowchart. The terms "first", "second", etc. in the specification, claims and the above drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence.

[0030] In the description of the present invention, it should be noted that, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific content of the technical solution.

[0031] Column speakers are a type of line source speakers. Point source speakers diffuse in the form of spherical waves. When the distance is doubled, the sound pressure level attenuates by 6 dB. Line source speakers propagate in the form of cylindrical waves. The energy is concentrated at its acoustic center point. When the distance is doubled, the attenuation is only 3 dB. This attenuation characteristic allows line sound sources to achieve better uniform coverage at the same coverage distance.

[0032] In the prior art, in order to ensure accurate coverage of the audience area, the speakers are usually placed at an angle downward. If the speakers are installed vertically, there will be a large attenuation in the back field and uneven sound pressure level; if the installation point of the speakers is raised to improve the uniformity of the sound field, the sound phase positioning will be inconsistent with the speaker's position, causing discomfort in the listening experience.

[0033] Reference Figures 1 to 3 In some embodiments of the present invention, a line array column type active speaker includes: a box body 100, a fixing bracket 200, a bass unit group 300, a tweeter drive unit 400 and a line array horn 410.

[0034] The tweeter drive unit 400 is arranged in coordination with the line array horn 410, the woofer group 300 is linearly arranged on the top surface of the box 100, and the woofer group 300 is linearly embedded. A fixing groove 110 is arranged on the top surface of the box 100. The bottom end of the fixing bracket 200 is connected to the fixing groove 110, and the top of the fixing bracket 200 is integrally connected to the line array horn 410. The tweeter drive unit 400 is installed on the line array horn 410, and the line array horn 410 and the fixing bracket 200 are integrally connected to realize the arrangement of the tweeter drive unit 400 above the woofer group 300 without obstruction.

[0035] The tweeter drive unit 400 and the bass unit group 300 are linearly installed on the same axis through the integrated line array horn 410 and the fixing bracket 200. This realizes the linear installation of multiple drive units to meet the long-distance projection. Compared with the traditional line array group, the installation is simplified to the greatest extent, and the manual debugging process is simplified.

[0036] The cabinet 100 is composed of compact multi-layer wooden plywood. The frequency range of the speaker can be 80Hz to 20KHz, and the frequency response range can be 90Hz to 20KHz. The horizontal diffusion angle of the speaker reaches 130°, and it has typical line array diffusion characteristics in the vertical direction, with a wide sound field and effective coverage distance. The linear installation of the tweeter drive unit 400 and the woofer unit group 300 can meet the long-distance projection, so as to solve the technical problem of realizing long-distance sound projection, and is particularly suitable for a large sound field application environment.

[0037] Reference Figures 1 to 3In some embodiments of the present invention, the line array horn 410 includes: a radiation surface 411 and a guide plate 412 .

[0038] The radiation surface 411 is provided with a mounting hole, and the radiation surface 411 is arc-shaped, so that the tweeter drive unit 400 can be embedded in the mounting hole to connect the tweeter drive unit 400 with the line array horn 410. The radiation surface 411 can radiate the treble generated by the tweeter drive unit 400 to meet the long-distance projection of the sound.

[0039] The drainage sheet 412 is arranged in an arc shape, and is connected to opposite sides of the radiation surface 411 through drainage holes 413, so as to facilitate drainage of the high frequency sound generated by the high frequency drive unit 400. The drainage sheet 412 is provided with a plurality of drainage holes 413, through which the low frequency sound generated by the low frequency unit group 300 is conveniently drained.

[0040] The line array horn 410 is also provided with a partition, and a partition 414 is laid along the arrangement direction of the tweeter drive unit 400. The partition 414 is connected to the radiation surface 411, and the tweeter drive unit 400 is embedded between the two partitions.

[0041] By integrating the fixing bracket 200 with the line array horn 410, it is convenient to linearly install the tweeter drive unit 400 and the woofer unit group 300 on the same axis. Compared with the traditional line array group, the installation is simplified to the greatest extent and the manual debugging process is simplified.

[0042] Through the guide plate 412 and the radiation surface 411, the linear installation of the tweeter drive unit 400 and the bass unit group 300 can meet the long-distance projection, so as to solve the technical problem of realizing long-distance sound projection, which is particularly suitable for a large sound field application environment.

[0043] Reference Figures 1 to 3 In some embodiments of the present invention, the fixing bracket 200 includes: a fixing column 210 and a fixing member 220 .

[0044] The bottom end of the fixing column 210 is inserted into the fixing slot 110 of the speaker, the top end of the fixing column 210 is integrally connected with the drainage sheet 412, the side wall of the fixing column 210 is integrally connected with the fixing member 220, the fixing member 220 is integrally connected with the bottom surface of the drainage sheet 412, and the fixing member 220 is also integrally connected with the bottom surface of the radiation surface 411, thereby realizing the integral connection between the fixing bracket 200 and the line array horn 410. By integrating the fixing bracket 200 with the line array horn 410, it is convenient to linearly install the tweeter drive unit 400 and the bass unit group 300 on the same axis, and compared with the traditional line array group, the installation is simplified to the greatest extent, and the manual debugging process is simplified.

[0045] By integrating the fixing member 220 and the line array horn 410, the linear installation of the tweeter drive unit 400 and the bass unit group 300 can meet the long-distance projection requirement, thereby solving the technical problem of achieving long-distance projection of sound.

[0046] Reference Figures 1 to 3 In some embodiments of the present invention, the bass unit group 300 includes: a bass drive unit 310. The bass drive unit 310 is composed of six 6.5-inch 38mm voice coil neodymium cone drive units. The bass channels corresponding to the bass drive unit 310 have a rated output power of 250W for each channel, and there are three bass channels.

[0047] The bass drive units 310 are arranged at intervals on the top surface of the sound box, and the distance between the two bass drive units 310 is 168 mm. The distance between the bass drive unit 310 and the side surface of the box body 100 is 101 mm.

[0048] In some embodiments of the present invention, the tweeter drive unit 400 is composed of 24 25 mm titanium film neodymium magnet drive units. The distance between two tweeter drive units 400 is 42.3 mm. The distance between the tweeter drive unit 400 and the side of the box 100 is 37.7 mm.

[0049] By arranging the bass drive unit 310 and the tweeter drive unit 400, two sets of drive units with different volumes are installed in the speaker to achieve long-distance volume projection. The line array horn 410 is arranged to cooperate with the tweeter drive unit 400, and the fixing bracket 200 and the line array horn 410 are integrated to facilitate the linear installation of the tweeter drive unit 400 and the bass unit group 300 on the same axis. Compared with the traditional line array group, the installation is simplified to the greatest extent, and the manual debugging process is simplified.

[0050] This speaker has typical line array diffusion characteristics in the vertical direction, has a wide sound field and effective coverage distance, and the linear installation of the tweeter drive unit 400 and the woofer group 300 can meet the long-distance projection, so as to solve the technical problem of realizing long-distance projection of sound.

[0051] Reference Figures 1 to 3 In some embodiments of the present invention, the sound box further includes: a control module, a gain module, an ambient sound data input port, a high frequency processing module and a low frequency processing module.

[0052] The input end of the gain module is electrically connected to the sound input end, the input end of the control module is electrically connected to the output end of the gain module, the output end of the control module is electrically connected to the input end of the high-frequency processing module, the output end of the control module is also electrically connected to the input end of the low-frequency processing module, the output end of the high-frequency processing module is electrically connected to the tweeter drive unit 400 so that the tweeter drive unit 400 produces a treble, and the output end of the low-frequency processing module is electrically connected to the bass drive unit 310 so that the bass drive unit 310 produces a bass.

[0053] In this embodiment, a volume adjustment signal is input through the sound input terminal, and the gain module is used to amplify the gain of the volume adjustment signal. The amplified volume adjustment signal is input into the control module, and the control module processes the volume adjustment signal, outputs a high-frequency signal to the high-frequency processing module, and also outputs a low-frequency signal to the low-frequency processing module. The high-frequency processing module processes the high-frequency signal and outputs it through the high-frequency driving unit 400 to generate high-frequency sound. The low-frequency processing module processes the low-frequency signal and outputs it through the low-frequency driving unit 310 to generate low-frequency sound.

[0054] In this embodiment, the drive units of different volumes have independent processing modules and volume channels. Through the control module, high-frequency processing module and low-frequency processing module, not only the acoustic interference between the units is effectively eliminated, but the user can also manually set the required vertical diffusion angle and projection angle to achieve precise coverage of the sound field, avoid unnecessary sound reflections, make the sound field clearer, and suppress acoustic feedback. Among them, the diffusion angle ranges from 5° to 40°, with 5° as the adjustment gear to achieve one adjustment gear, and the projection angle ranges from 0° to ±30°, with 1° as the adjustment interval.

[0055] Through the control module, high-frequency processing module and low-frequency processing module, the system response can be optimized and the required coverage range can be adjusted, so that the system debugging can be completed without the need for professionals.

[0056] The input end of the control module is electrically connected to the ambient sound data input port, and the ambient sound data input port is electrically connected to an external ambient sound collection device.

[0057] In this embodiment, the speaker is specially provided with an ambient sound data input port to receive real-time ambient sound data collected by an external ambient sound collection device, and the output parameters of the speaker are adjusted through the control module to maintain clear sound.

[0058] The preferred implementation methods of the utility model are specifically described above, but the invention of the utility model is not limited to the described embodiments. Those skilled in the art can make various equivalent modifications or substitutions without violating the spirit of the utility model. These equivalent modifications or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A line array column type active speaker, characterized in that: include: Box, fixing bracket, bass unit group, tweeter driver unit and line array horn matched with tweeter driver unit; The bass unit group is linearly embedded in the top surface of the box body, the top surface of the box body is provided with a fixing groove, the bottom end of the fixing bracket is connected to the fixing groove, and the top of the fixing bracket is integrally connected to the line array horn; The tweeter drive unit is connected to the line array horn so that the tweeter drive unit is located above the woofer unit group, and the woofer unit group and the tweeter drive unit are on the same axis.

2. A line array column type active sound box according to claim 1, characterized in that: The line array horn comprises: a radiating surface and a guide plate; The radiation surface is provided with a mounting hole, the tweeter drive unit is installed in the mounting hole, and the radiation surface is arranged in an arc shape; The opposite sides of the radiation surface are connected to the drainage sheet, a plurality of drainage holes are arranged on the drainage sheet, and the drainage sheet is arranged in an arc shape.

3. A line array column type active sound box according to claim 2, characterized in that: The line array horn is further provided with a partition, which is laid along the arrangement direction of the tweeter drive unit. The tweeter drive unit is located between two of the partitions, and the partition is connected to the radiation surface.

4. The line array column type active sound box according to claim 2, characterized in that: The fixing bracket comprises: a fixing column and a fixing member; The bottom end of the fixing column is plugged into the fixing groove, the top end of the fixing column is connected to the drainage sheet, the side wall of the fixing column is connected to the fixing piece, and the fixing piece is respectively connected to the bottom surface of the drainage sheet and the bottom surface of the radiation surface.

5. The line array column type active sound box according to claim 1, characterized in that: Also includes: A control module, a high frequency processing module and a low frequency processing module; The control module is connected to the high-frequency processing module and the low-frequency processing module respectively, the high-frequency processing module is connected to the tweeter driving unit, and the low-frequency processing module is connected to the bass unit group.

6. The line array column type active sound box according to claim 5, characterized in that: Also includes: an ambient sound data input port; The ambient sound data input port is connected to the input end of the control module, and the control module is connected to an external ambient sound collection device through the ambient sound data input port, and the ambient sound data collected by the external ambient sound collection device.

7. The line array column type active sound box according to claim 1, characterized in that: The tweeter driver unit uses 24 25mm titanium film neodymium magnetic driver units.

8. The line array column type active sound box according to claim 1, characterized in that: The bass unit group includes a bass drive unit; the bass drive unit adopts 6 6.5-inch 38mm voice coil neodymium cone drive units.

9. The line array column type active sound box according to claim 8, characterized in that: The bass drive units are arranged at intervals, and the distance between the two bass drive units is 168 mm.

10. The line array column type active sound box according to claim 7, characterized in that: The tweeter drive units are arranged at intervals, and the distance between the two tweeter drive units is 42.3 mm.

Images