Three-frequency-division symmetrical sound post

Abstract

The utility model discloses a three-frequency-division symmetrical sound post which comprises a post body, two low-pitch output assemblies, two alto-pitch output assemblies and two high-pitch output assemblies. The column body is transversely arranged, the two ends of the column body are each provided with a first installation area, a second installation area and a third installation area, the first installation areas are close to the ends of the column body, and the third installation areas are away from the ends of the column body. The two bass output assemblies are symmetrically arranged relative to the column body and are respectively installed in the two third installation areas, the two alto output assemblies are symmetrically arranged relative to the column body and are respectively installed in the two first installation areas, and the two treble output assemblies are symmetrically arranged relative to the column body and are respectively installed in the two second installation areas. And a three-dimensional frequency division design is adopted, so that the output units can be arranged and combined conveniently, the structure is highly integrated, the audio frequency range is wider, and the coverage area is larger. The omni-directional coverage of the audience area is realized by arranging the sound post singly, and the phenomenon that a plurality of sound boxes are used cooperatively in the prior art is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of sound boxes, in particular to a three-frequency symmetrical sound column. Background Art

[0002] In the prior art, in order to ensure omnidirectional coverage of the listening area, several speakers are required to be used together. However, too many speakers will cause frequency band confusion, resulting in a decrease in the uniformity of the sound field and a reverberant sound field, causing hearing discomfort and making it difficult to achieve omnidirectional coverage of the entire frequency band. Utility Model Content

[0003] The purpose of the utility model is to provide a three-way symmetrical sound column to solve one or more technical problems existing in the prior art and at least provide a beneficial choice or create conditions.

[0004] The utility model solves the technical problem by providing a three-way symmetrical sound column, comprising a column body, two bass output components, two mid-range output components and two treble output components;

[0005] The column is arranged transversely, and both ends of the column are provided with a first installation area, a second installation area and a third installation area, the first installation area is close to the end of the column, and the third installation area is far from the end of the column;

[0006] The two bass output components are symmetrically arranged about the column and are respectively installed in the two third installation areas, the two midrange output components are symmetrically arranged about the column and are respectively installed in the two first installation areas, and the two treble output components are symmetrically arranged about the column and are respectively installed in the two second installation areas.

[0007] Furthermore, a three-way symmetrical sound column also includes: two low-frequency resonance ducts;

[0008] The two low-frequency resonance ducts are symmetrically arranged about the column, the distance between the two low-frequency resonance ducts is smaller than the distance between the two bass output components, and the two low-frequency resonance ducts are both connected to the interior of the column.

[0009] Further, the low-frequency resonance conduit comprises: a resonance port, a first conduit, a second conduit and a third conduit;

[0010] The resonance port is arranged on the column wall of the column, and the resonance port extends toward the inside of the column to form the first duct. The inside of the column is provided with the second duct and the third duct, and the second duct and the third duct are symmetrically arranged with respect to the first duct. The second duct extends toward the bass output component, and the first duct is respectively connected with the second duct and the third duct.

[0011] Furthermore, the tweeter output assembly includes: a tweeter speaker and a horn matched with the tweeter speaker:

[0012] The tweeter is connected to the horn, and both the tweeter and the horn are arranged in the second installation area.

[0013] Furthermore, a three-way symmetrical sound column also includes: an audio processing module and a frequency division module;

[0014] The output end of the audio processing module is connected to the input end of the frequency division module, and the output end of the frequency division module is respectively connected to the bass output component, the mid-range output component and the treble output component.

[0015] Furthermore, a three-way symmetrical sound column also includes: a control module and a Bluetooth module; the control module is connected to the audio processing module, and the Bluetooth module is connected to the control module.

[0016] Furthermore, a three-way symmetrical sound column also includes: a remote audio input interface; the remote audio input interface is connected to the input end of the audio processing module, and the remote audio input interface is used to receive an input audio signal wirelessly sent by an external device.

[0017] Furthermore, the tweeter is a core titanium diaphragm neodymium magnet compression speaker.

[0018] Furthermore, the bass output component is provided with two bass speakers; the bass speakers are neodymium magnet paper cone speakers.

[0019] Furthermore, the midrange output component is provided with a midrange speaker; the midrange speaker is a neodymium magnet paper cone speaker.

[0020] The beneficial effects of the utility model are as follows: by setting different installation areas at the two ends of the column, symmetrically setting the mid-range output component, the treble output component and the bass output component on the column in turn, and adopting a stereo three-way frequency design, it is convenient to arrange and combine the above output units, so that the structure is highly integrated, the sound is more stereoscopic, the audio is wider, and the coverage area is larger. Through the horizontal radiation angle of the wide audio and the horizontally arranged column, a single sound column is set to achieve omnidirectional coverage of the audience area, reducing the phenomenon of using several speakers in conjunction in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a partial structural diagram of a three-way symmetrical sound column provided by an embodiment of the utility model;

[0022] Figure 2 This is a partial structural cross-sectional view of a three-way symmetrical sound column provided by an embodiment of the utility model;

[0023] Figure 3It is a partial structural diagram of a three-way symmetrical sound column provided by another embodiment of the utility model.

[0024] Figure numbers: 100, column, 200, bass output component, 300, mid-range output component, 400, treble output component, 500, low-frequency resonance duct, 510, first duct, 520, second duct, 530, third duct. DETAILED DESCRIPTION

[0025] 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.

[0026] 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.

[0027] 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.

[0028] Reference Figures 1 to 3 In some embodiments of the present invention, a three-way symmetrical sound column includes: a column body 100, two bass output components 200, two mid-range output components 300 and two treble output components 400.

[0029] The end of the column 100 is provided with a first mounting area, a second mounting area and a third mounting area, the first mounting area is close to the end of the column 100, the third mounting area is far from the end of the column 100, and the second mounting area is located between the first mounting area and the third mounting area. The first mounting area is connected to the second mounting area, and the second mounting area is connected to the third mounting area. The column 100 is arranged horizontally.

[0030] The two bass output components 200, the two midrange output components 300 and the two tweeter output components 400 are all symmetrically arranged on the column 100. The two bass output components 200 are symmetrically installed in the two third installation areas, the two midrange output components 300 are symmetrically installed in the two first installation areas, and the two tweeter output components 400 are symmetrically installed in the two second installation areas.

[0031] That is to say, along the first direction of the column 100, one end is divided into a first installation area, a second installation area and a third installation area, and the other end is divided into a third installation area, a second installation area and the first installation area. The first installation area is installed with a mid-range output component 300, the second installation area is installed with a tweeter output component 400, and the third installation area is installed with a bass output component 200.

[0032] That is, along the first direction of the horizontally arranged column 100, two bass output components 200, two midrange output components 300 and two treble output components 400 are laid, the two bass output components 200, the two midrange output components 300 and the two treble output components 400 are symmetrically arranged about the column 100, and the spacing between the two bass output components 200 is smaller than the spacing between the two treble output components 400. The treble output components 400 are all located between the midrange output components 300 and the bass output components 200.

[0033] Among them, the horizontal diffusion angle of this sound column is 120°, the vertical diffusion angle is 70°, the frequency response range is 75Hz to 19KHz, and the frequency range is 65Hz to 20KHz.

[0034] By setting different installation areas at the two ends of the column 100, the mid-range output component 300, the tweeter output component 400 and the bass output component 200 are symmetrically arranged on the column 100 in turn, and a stereo three-way design is adopted to facilitate the arrangement and combination of the above output units, so that the structure is highly integrated, the sound is more stereoscopic, the audio is wider, and the coverage area is larger. Through the horizontal radiation angle of the wide audio and the horizontally arranged column 100, a single sound column is set to achieve omnidirectional coverage of the audience area, reducing the phenomenon of using several speakers in the prior art. This solves the problem that too many speakers in the prior art will cause frequency band confusion, resulting in a decrease in sound field uniformity, reverberant sound field and discomfort in hearing, and solves the problem that it is difficult to achieve omnidirectional coverage of the full frequency band.

[0035] Reference Figures 1 to 3 In some embodiments of the present invention, the symmetrical sound column further includes: two low-frequency resonance ducts 500 .

[0036] Two low-frequency resonance ducts 500 are symmetrically arranged on the column 100, and both low-frequency resonance ducts 500 are connected to the inside of the column 100. The distance between the two low-frequency resonance ducts 500 is smaller than the distance between the two bass output components 200. The low-frequency resonance duct 500 is used to increase the low-frequency volume of the bass output component 200.

[0037] That is to say, the low-frequency resonance duct 500, the bass output component 200, the tweeter output component 400 and the midrange output component 300 can be symmetrically arranged with the geometric center of the column 100 as the axis, and the low-frequency resonance duct 500, the bass output component 200, the tweeter output component 400 and the midrange output component 300 are arranged in sequence from the geometric center of the column 100 to the end of the column 100.

[0038] The low-frequency resonant conduit 500 is composed of a resonant port, a first conduit 510, a second conduit 520, and a third conduit 530. The resonant port is disposed on the column wall of the column 100, and the resonant port extends toward the inside of the column 100, thereby forming the first conduit 510. The second conduit 520 and the third conduit 530 are disposed inside the column 100, and the second conduit 520 is symmetrically disposed through the first conduit 510 and the third conduit 530.

[0039] The second duct 520 extends toward the bass output assembly 200 , and the opening of the second duct 520 gradually becomes larger along the extending direction. The second duct 520 is communicated with the first duct 510 , and the third duct 530 is communicated with the first duct 510 .

[0040] When the diaphragm of the bass output component 200 moves, it is connected to the air in the column 100 through the second duct 520 and the third duct 530. The compressed or expanded air in the column 100 is discharged from the resonance port through the first duct 510 and radiated through the resonance port, thereby enhancing the low-frequency volume and improving efficiency.

[0041] By setting different installation areas at the two ends of the column 100, the mid-range output component 300, the tweeter output component 400 and the bass output component 200 are symmetrically arranged on the column 100 in turn, and a stereo three-way frequency design is adopted to facilitate the arrangement and combination of the above output units, so that the structure is highly integrated, the sound is more stereoscopic, the audio is wider, and the coverage area is larger. Through the horizontal radiation angle of the wide audio, the horizontally arranged column 100 and the low-frequency resonance duct 500, a single sound column is set to achieve omnidirectional coverage of the audience area, reducing the phenomenon of using several speakers in the prior art. This solves the problem that too many speakers in the prior art will cause frequency band confusion, resulting in a decrease in sound field uniformity, reverberant sound field and discomfort in hearing, and solves the problem that it is difficult to achieve omnidirectional coverage of the full frequency band.

[0042] Reference Figures 1 to 3 In some embodiments of the present invention, the tweeter output component 400 includes a tweeter and a horn. The tweeter uses a 25.4mm core titanium film neodymium magnetic compression speaker, and the horn matches the tweeter. The tweeter and the horn are both installed in the second installation area.

[0043] The bass output component 200 is provided with two bass speakers, that is, four bass speakers are provided on the column 100, and the bass speakers are 3-inch neodymium magnetic paper cone speakers.

[0044] The midrange output component 300 is provided with a midrange speaker, and the midrange speaker adopts a 3-inch neodymium magnetic paper cone speaker.

[0045] The distance between the mid-range speaker and the woofer near the end of the column 100 is 186.5 mm, and the distance between the low-frequency resonance duct 500 and the end of the column 100 is 648.6 mm.

[0046] By setting different installation areas at the two ends of the column 100, the mid-range output component 300, the tweeter output component 400 and the bass output component 200 are symmetrically arranged on the column 100 in turn, and a stereo three-way frequency design is adopted to facilitate the arrangement and combination of the above output units, so that the structure is highly integrated, the sound is more stereoscopic, the audio is wider, and the coverage area is larger. Through the horizontal radiation angle of the wide audio, the horizontally arranged column 100 and the low-frequency resonance duct 500, a single sound column is set to achieve omnidirectional coverage of the audience area, reducing the phenomenon of using several speakers in the prior art. This solves the problem that too many speakers in the prior art will cause frequency band confusion, resulting in a decrease in sound field uniformity, reverberant sound field and discomfort in hearing, and solves the problem that it is difficult to achieve omnidirectional coverage of the full frequency band.

[0047] Reference Figures 1 to 3 In some embodiments of the present utility model, the symmetrical sound column further includes: a control module, an audio processing module, a frequency division module, a Bluetooth module and an interface module.

[0048] The input end of the control module is electrically connected to the interface module, the output end of the control module is electrically connected to the input end of the audio processing module, the output end of the audio processing module is electrically connected to the input end of the frequency division module, the output end of the frequency division module is electrically connected to the bass output component 200, the output end of the frequency division module is electrically connected to the midrange output component 300, and the output end of the frequency division module is electrically connected to the treble output component 400.

[0049] The audio processing module is used to process the audio signal input by the interface module, and can adjust the output of each channel separately to achieve the frequency division of the frequency division module. Among them, the control module stores three mode curves inside, which can adjust the audio processing module according to the application scenario and the mode curve corresponding to the application scenario.

[0050] The Bluetooth module is electrically connected to the control module to achieve remote wireless playback.

[0051] The interface module includes: a stereo output interface, a stereo line signal input interface, a remote audio input interface and an external control panel interface.

[0052] The stereo output interface is connected to the output end of the control module and to the external terminal. The control module can record the sound output by the output component and output it as a recording through the stereo output interface.

[0053] The stereo line signal input interface is connected to the input end of the control module, and the stereo line signal input interface is used for externally connecting a pre-stage signal or a cascade input signal.

[0054] The remote audio input interface is connected to the input end of the control module, the remote audio input interface is wirelessly connected to an external device, the external device remotely and wirelessly sends the input audio signal, the remote audio input interface receives the input audio signal, and sends the input audio signal directly to the audio processing module for processing, thereby blocking the feedback of the transmission signal and eliminating the transmission echo of the network audio.

[0055] The external control panel interface is connected to an external central control host, or the external control panel interface is connected to an external control panel to adjust the volume and mode of the sound column.

[0056] Through several interfaces and Bluetooth modules in the interface module, corresponding plug-in interfaces are connected according to usage scenarios, which improves the applicability and extensiveness of the sound column, is conducive to the diversified use of the sound column, and is suitable for a variety of application scenarios.

[0057] 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 three-way symmetrical sound column, characterized in that: include: The column, two bass output components, two midrange output components and two tweeter output components; The column is arranged transversely, and both ends of the column are provided with a first installation area, a second installation area and a third installation area, the first installation area is close to the end of the column, and the third installation area is far from the end of the column; The two bass output components are symmetrically arranged about the column and are respectively installed in the two third installation areas, the two midrange output components are symmetrically arranged about the column and are respectively installed in the two first installation areas, and the two treble output components are symmetrically arranged about the column and are respectively installed in the two second installation areas.

2. A three-way symmetrical sound column according to claim 1, characterized in that: Also includes: two low-frequency resonant ducts; The two low-frequency resonance ducts are symmetrically arranged about the column, the distance between the two low-frequency resonance ducts is smaller than the distance between the two bass output components, and the two low-frequency resonance ducts are both connected to the interior of the column.

3. A three-way symmetrical sound column according to claim 2, characterized in that: The low-frequency resonance conduit comprises: a resonance port, a first conduit, a second conduit and a third conduit; The resonance port is arranged on the column wall of the column, and the resonance port extends toward the inside of the column to form the first duct. The inside of the column is provided with the second duct and the third duct, and the second duct and the third duct are symmetrically arranged with respect to the first duct. The second duct extends toward the bass output component, and the first duct is respectively connected with the second duct and the third duct.

4. A three-way symmetrical sound column according to claim 1, characterized in that: The tweeter output assembly includes a tweeter and a horn matched with the tweeter: The tweeter is connected to the horn, and both the tweeter and the horn are arranged in the second installation area.

5. The three-way symmetrical sound column according to claim 1, characterized in that: Also includes: audio processing module and frequency division module; The output end of the audio processing module is connected to the input end of the frequency division module, and the output end of the frequency division module is respectively connected to the bass output component, the mid-range output component and the treble output component.

6. A three-way symmetrical sound column according to claim 5, characterized in that: Also includes: A control module and a Bluetooth module; the control module is connected to the audio processing module, and the Bluetooth module is connected to the control module.

7. A three-way symmetrical sound column according to claim 5, characterized in that: It also includes: a remote audio input interface; the remote audio input interface is connected to the input end of the audio processing module, and the remote audio input interface is used to receive an input audio signal wirelessly sent by an external device.

8. A three-way symmetrical sound column according to claim 4, characterized in that: The tweeter is a core titanium diaphragm neodymium magnet compression speaker.

9. A three-way symmetrical sound column according to claim 1, characterized in that: The bass output component is provided with two bass speakers; the bass speakers are neodymium magnetic paper cone speakers.

10. The three-way symmetrical sound column according to claim 1, characterized in that: The midrange output component is provided with a midrange speaker; the midrange speaker is a neodymium magnetic paper cone speaker.

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