CN118200776A - Linear array type sound box - Google Patents
Linear array type sound box Download PDFInfo
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- CN118200776A CN118200776A CN202410474871.0A CN202410474871A CN118200776A CN 118200776 A CN118200776 A CN 118200776A CN 202410474871 A CN202410474871 A CN 202410474871A CN 118200776 A CN118200776 A CN 118200776A
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- 230000007246 mechanism Effects 0.000 claims abstract description 16
- 230000000295 complement effect Effects 0.000 claims abstract description 8
- 230000005540 biological transmission Effects 0.000 claims description 24
- 239000000463 material Substances 0.000 claims description 11
- 230000001154 acute effect Effects 0.000 claims description 4
- 230000004308 accommodation Effects 0.000 claims 2
- 230000008901 benefit Effects 0.000 abstract description 3
- 238000009434 installation Methods 0.000 abstract description 3
- 238000003491 array Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/02—Casings; Cabinets ; Supports therefor; Mountings therein
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- Acoustics & Sound (AREA)
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Abstract
The invention relates to a line array type sound box which comprises a shell, a main expansion unit and a side compensation unit, wherein a containing cavity is formed in the shell, and the main expansion unit and the side compensation unit are both positioned in the containing cavity. The side complement unit is located one side of the main expansion unit, the main expansion unit comprises a bass module, a first midrange module and a first treble module, the bass module and the first midrange module are located on two sides of the first treble module respectively, the side complement unit is characterized in that the side complement unit comprises an adjusting mechanism, a second midrange module and a second treble module, the second midrange module is connected with the first midrange module, one end of the adjusting mechanism is connected with the shell, the other end of the adjusting mechanism is connected with the second treble module, and the adjusting structure can control the second treble module to be close to or far away from the second midrange module. The wire array type sound box provided by the invention has the advantages of simpler structure, more convenient installation and lower cost.
Description
Technical Field
The invention relates to the technical field of wire array type sound boxes, in particular to a wire array type sound box.
Background
The linear array sound box is characterized in that a plurality of sound boxes are arranged into linear sound source radiation units with compact intervals, and the sound boxes have the same amplitude and phase; the angle of coverage is different between a plurality of audio amplifier, and the line array audio amplifier can provide very good directionality of vertical coverage for line array audio amplifier is suitable for long-range acoustic radiation.
The linear array type loudspeaker box (aiming at a far field) is different from a common loudspeaker box (aiming at a near field), the linear array type loudspeaker box is mainly applied to large occasions such as large-scale mobile performance, gymnasiums or large-scale theatres, and in the sound arrangement of application scenes, the current conventional practice is that a main loudspeaker box is hung by a single group of linear arrays to cover the far field and the near field in front; the side compensating sound boxes are hung by a group of linear arrays to cover an internal field (or the front compensating sound box is placed at the stage lip position to cover the internal field); the number and the types of the sound boxes required by the method are more, the side-compensating sound boxes are required to be hung independently, wires and the power amplifier cabinet are required to be butted independently, and meanwhile, the consumed manpower and financial resources are increased, so that improvement is required on the basis of the requirement.
Disclosure of Invention
In order to achieve the purpose of the invention, the invention provides a wire array type sound box, which comprises a shell, a main expansion unit and a side compensation unit, wherein a containing cavity is arranged in the shell, and the main expansion unit and the side compensation unit are both positioned in the containing cavity. The side complement unit is located one side of the main expansion unit, the main expansion unit comprises a bass module, a first midrange module and a first treble module, the bass module and the first midrange module are respectively located on two sides of the first treble module, the side complement unit comprises an adjusting mechanism, a second midrange module and a second treble module, the second midrange module is connected with the first midrange module, one end of the adjusting mechanism is connected with the shell, the other end of the adjusting mechanism is connected with the second treble module, and the adjusting structure can control the second treble module.
Preferably, one end of the second middle voice module is connected with the first middle voice module, and the other end of the second middle voice module is arranged in an outward inclined mode relative to the first middle voice module;
Or, the second midrange module comprises a first midrange unit and a second midrange unit, one end of the first midrange unit is connected with the first midrange module, and the other end of the first midrange unit is connected with the second midrange unit; the first midrange unit is arranged in an outward inclined mode relative to the first midrange module, and the second midrange unit is arranged in an outward inclined mode relative to the first midrange unit.
Preferably, the first middle voice unit and the second middle voice unit are arranged obliquely relative to the first middle voice module in an angle increasing mode, and the oblique angles of the first middle voice unit and the second middle voice unit are acute angles.
Preferably, the adjusting mechanism comprises an adjusting part and a fixing part, a fixing plate is arranged on the shell, an adjusting groove which is connected with the adjusting part in a matching mode is formed in the fixing plate, one end of the adjusting part is located in the adjusting groove, and the other end of the adjusting part is connected with the second high-pitched module through the fixing part.
Preferably, a plurality of tooth blocks are arranged on the adjusting piece at intervals, the adjusting groove comprises an L-shaped groove and an arc-shaped groove which are communicated, tooth grooves which are connected with the tooth blocks in a matching mode are formed in the arc-shaped groove, and the adjusting piece is connected with the L-shaped groove and the arc-shaped groove in a matching mode.
Preferably, a mounting bracket is arranged in the accommodating cavity, the mounting bracket divides the accommodating cavity into a main expansion cavity and a side compensation cavity, the main expansion unit is positioned in the main expansion cavity, and the side compensation unit is positioned in the side compensation cavity.
Preferably, the casing comprises a fixing plate, the fixing plate is made of a sound-transmitting material, or sound-transmitting holes are formed in the fixing plate, and the sound-transmitting holes are uniformly distributed.
Preferably, the shell is provided with an acoustic transmission area connected with the generation plane of the main expansion unit and the lateral compensation unit; the sound transmission area comprises a first area and a second area, the shell is provided with a fixed plate, a side plate and a bottom plate which are connected, the side plate and the fixed plate are both positioned in the first area, and the side plate and the fixed plate are arranged at intervals and are made of sound transmission materials; the bottom plate is positioned in the second area and made of an acoustic transmission material;
Or a plurality of sound transmission holes are formed in the fixing plate, the side plate and the bottom plate, and the sound transmission holes are uniformly distributed.
Preferably, the first treble module and the second treble module each comprise a sound amplifying hole, and the sound amplifying holes are arranged close to the first area; and the first midrange module and the second midrange module are respectively provided with a phase inversion hole, and the reverse holes are communicated with the second area.
Preferably, the shell is further provided with a fixing support and a mounting block, the fixing support is connected with the shell, and the mounting block is rotationally connected with the fixing support.
The beneficial effects of the invention are as follows: according to the wire array type sound box, the side compensation unit is additionally arranged, the connection between high-pitched sound and middle-pitched sound is achieved through the adjustable second high-pitched sound module, and meanwhile, the side compensation unit and the main expansion unit are of an integrated structure, and compared with the main expansion sound box and the side compensation sound box in the traditional technology, the wire array type sound box is simpler in structure, more convenient to install and lower in cost.
Drawings
The foregoing and other objects, features and advantages of the invention will be apparent from the following more particular description of preferred embodiments of the invention, as illustrated in the accompanying drawings. Like reference numerals refer to like parts throughout the drawings, and the drawings are not intentionally drawn to scale on actual size or the like, with emphasis on illustrating the principles of the invention.
Fig. 1 is a schematic diagram of a specific structure of a wire array type sound box according to an embodiment of the present invention;
Fig. 2 is a schematic cross-sectional view of a wire array type loudspeaker according to an embodiment of the present invention;
Fig. 3 is a side view of a wire array type sound box according to an embodiment of the present invention;
FIG. 4 is an enlarged view of a portion A of FIG. 3;
In the figure: 1-shell, 11-sound transmission area, 12-fixed bolster, 13-installation piece, 14-bottom plate, 2-first high sound module, 21-bass module, 22-first midrange module, 23-second high sound module, 24-first midrange unit, 25-second midrange unit, 26-regulating part, 27-fixed plate, 3-curb plate, 31-fixed column.
Detailed Description
In order that the invention may be understood more fully, the invention will be described with reference to the accompanying drawings.
It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to and integrated with the other element or intervening elements may also be present. The terms "mounted," "one end," "the other end," and the like are used herein for illustrative purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1-4, an embodiment of the present invention provides a wire array type sound box, which includes a housing 1 and a main expansion unit, wherein a receiving cavity is provided in the housing 1, the main expansion unit is located in the receiving cavity, the main expansion unit includes a bass module 21, a first midrange module 22 and a first treble module 2, the bass module 21 and the first midrange module 22 are located at two sides of the first treble module 2, the wire array type sound box further includes a side compensation unit, the side compensation unit is located in the receiving cavity and is located at one side of the main expansion unit, and a sound transmission area 11 connected with sound transmission planes of the main expansion unit and the side compensation unit is further provided on the housing 1 (the connection here represents that sound of the main expansion unit and the side compensation unit can pass through the sound transmission area 11 or propagate to the outside of the sound box through the sound transmission area 11).
Referring to fig. 1-4, the line array type sound box provided by the invention realizes the connection between high-pitched sound and middle-pitched sound through additionally arranging the side compensation unit and the adjustable second high-pitched sound module, and meanwhile, the side compensation unit and the main expansion unit are of an integrated structure, and compared with the main expansion sound box and the side compensation sound box in the traditional technology, the line array type sound box is simpler in structure, more convenient to install and lower in cost.
Referring to fig. 2, in a preferred embodiment, the lateral compensation unit further includes a second midrange module, one end of the second midrange module is connected to the first midrange module 22, and the other end of the second midrange module is disposed obliquely outwards relative to the first midrange module 22.
Referring to fig. 2, in a preferred embodiment, the second midrange module includes a first midrange unit 24 and a second midrange unit 25, wherein one end of the first midrange unit 24 is connected with the first midrange module 22, and the other end is connected with the second midrange unit 25; the first midrange unit 24 is disposed obliquely outward relative to the first midrange module 22, the second midrange unit 25 is disposed obliquely outward relative to the first midrange unit 24, or the second midrange unit 25 is disposed obliquely outward relative to the first midrange module 22.
Referring to fig. 2, in a further preferred embodiment, the lateral compensation unit includes a second midrange module, a second treble module 23 and an adjusting mechanism, wherein the second midrange module 23 and the adjusting mechanism are connected with each other, and the adjusting mechanism is further connected with the housing 1 and can control the second treble module 23 to be close to or far from the second midrange module.
In the preferred embodiment, the first midrange unit 24 and the second midrange unit 25 are inclined with respect to the first midrange module 22 in an angle increasing manner, and the inclination angles of the first midrange unit 24 and the second midrange unit 25 are acute angles;
in the above three embodiments, the second midrange module is at least one midrange unit, and is disposed obliquely upward relative to the first midrange module 22, mainly for realizing the engagement between midrange and treble, wherein the second midrange module is inclined at an angle of 10-90 °, preferably 30-60 ° or 30 ° or 60 °.
When the second midrange unit is two midrange units (i.e. the second embodiment is listed above), the angle of inclination of the first midrange unit 24 with respect to the first midrange unit 22 is 1-45 °, preferably 30 °, the angle of inclination of the second midrange unit 25 with respect to the first midrange unit 24 is 1-45 °, preferably 15 °, or the angle of inclination of the second midrange unit 25 with respect to the first midrange unit 22 is 1-45 °, preferably 45 °, wherein the first midrange unit 22 is parallel to the horizontal plane, as in fig. 2, the first midrange unit 22 is parallel to the bottom plate 14 (angle is 0 or 180 °), i.e. the angles between the first midrange unit 22, the first midrange unit 24 and the second midrange unit 25 are gradually changed to be 0, 30, 45 °), so as to achieve the engagement with the second midrange unit 23 (engagement of treble and midrange);
In a further preferred embodiment, the first midrange unit 24 and the first midrange module 22 may be located in the same chamber, the first midrange unit 24 and the second midrange unit 25 may also be located in the same chamber, and the first midrange module 22, the first midrange unit 24 and the second midrange unit 25 are sequentially arranged in an angle gradual manner and inclined upwards towards the sound transmission area 11, and are matched with the adjustable second tweeter module 23, so that a wider coverage area is achieved.
In a further preferred embodiment, a mounting bracket is provided in the receiving chamber, the mounting bracket dividing the receiving chamber into a main expansion chamber and a side compensation chamber, the main expansion unit being located in the main expansion chamber, the side compensation unit being located in the side compensation chamber, the main expansion chamber and the side compensation chamber not being referred to herein as a completely closed chamber.
In the preferred embodiment, the distance between the second high-pitch module 23 and the second middle-pitch module is controlled by the adjusting mechanism, so that the ultra-wide direction of 140 degrees is realized, compared with the traditional sound box, the mode that two different sound boxes (namely, the main amplifying unit sound box and the side compensating unit sound box are used together) are adopted, the traditional two groups of functions (two sound boxes with different specifications) can be realized by only arranging a single sound box, the use of the internal space of the sound box is ensured to a certain extent, meanwhile, the device has the advantage of significance compared with the traditional sound box in terms of manual installation and equipment cost, and the adjustment of the second high-pitch module 23 is mainly used for adjusting the vertical angle of the side compensating unit, and is used for adjusting the angle compensation after the array is bent in the horizontal direction.
In a preferred embodiment, a mounting bracket is disposed in the accommodating cavity of the sound box, and the mounting bracket is disposed between the main expansion unit and the side compensation unit and separates the main expansion unit and the side compensation unit, and the bass module 21 is at least one bass unit.
Referring to fig. 2, in a further preferred embodiment, the adjusting mechanism includes an adjusting member 26 and a fixing member, a fixing plate 27 is provided on the housing 1, an adjusting slot is provided on the fixing plate 27 and is connected with the adjusting member 26 in a matching manner, one end of the adjusting member 26 is located in the adjusting slot, the other end of the adjusting member is connected with the second tweeter module 23 through the fixing member, and the adjusting member 26 mainly moves in the adjusting slot to adjust the coverage angle of the second tweeter module 23 in the vertical direction and the angle compensation in the horizontal direction.
Referring to fig. 3-4, in a preferred embodiment, a plurality of tooth blocks are arranged on the adjusting member 26 at intervals, the adjusting groove comprises an L-shaped groove and an arc-shaped groove which are communicated with each other, tooth grooves which are matched and connected with the tooth blocks are arranged in the arc-shaped groove, and the adjusting member 26 is matched and connected with the L-shaped groove and the arc-shaped groove;
In a further preferred embodiment, a plurality of tooth blocks are arranged on the inner wall of the arc-shaped groove at intervals, a plurality of tooth blocks are arranged on the adjusting piece 26 at intervals, and tooth grooves between the tooth blocks on the adjusting piece 26 and the tooth blocks on the inner wall of the arc-shaped groove are connected in a staggered manner, so that the position of the second high-pitch module 23 after the position adjustment is realized.
The junction of L type groove and arc groove is provided with the recess for realize the locating clip joint of regulating part 26 when being located the arc inslot topmost.
In this embodiment, by setting the L-shaped groove and the arc-shaped groove (referring to fig. 3, the second tweeter module can perform a transverse or longitudinal adjustment angle), it is ensured that the second tweeter module 23 can achieve a positioning adjustment of a vertical angle of 0- (-10) °, and a positioning adjustment of a horizontal angle of 0-45 °, preferably 0-32 °, so as to achieve a coverage range of a horizontal ultra-wide angle.
In the preferred embodiment, the arc-shaped groove extends from one end of the outer wall of the shell 1 towards the middle, and the inclination angle of the arc-shaped groove is acute.
In the preferred embodiment, the outer walls of the two ends of the housing 1 are also provided with fixing posts 31, and the fixing posts 31 mainly ensure that staff can carry or install the loudspeaker box more conveniently.
Referring to fig. 2-4, in a further preferred embodiment, the housing 1 includes a fixing plate 27, the fixing plate 27 is made of a sound-transmitting material, or sound-transmitting holes are provided on the fixing plate 27, and a plurality of sound-transmitting holes are uniformly distributed and arranged, and the sound-transmitting holes have a polygonal structure, preferably a hexagon, and mainly ensure the sound-transmitting rate of bass, midrange and treble.
Referring to fig. 1-3, in a preferred embodiment, the sound-transmitting region 11 includes a first region and a second region, the casing 1 is provided with a fixed plate 27, a side plate 3 and a bottom plate 14 connected with each other, the side plate 3 and the fixed plate 27 are both located in the first region, the fixed column 31 is connected with the side plate 3, and the side plate 3 and the fixed plate 27 are arranged at intervals and made of sound-transmitting materials; the bottom plate 14 is positioned in the second area, and the bottom plate 14 is made of an acoustically transparent material;
Or the fixed plate 27, the side plate 3 and the bottom plate 14 are respectively provided with a plurality of sound transmission holes, the sound transmission holes are uniformly distributed, the fixed plate 27, the side plate 3 and the bottom plate 14 are made of sound transmission materials or are made of sound transmission holes, the structure of the sound transmission holes is mainly selected according to actual needs, and the sound transmission rates of bass, midrange and treble can be optimized.
Referring to fig. 2, in a preferred embodiment, the side compensating unit includes a second midrange module and a second treble module 23, and the first treble module 2 and the second treble module 23 each include a sound amplifying hole, and the sound amplifying holes are disposed near the sound transmitting region 11; the first midrange module 22 and the second midrange module are provided with reverse holes for diffusing midrange.
In the preferred embodiment, the first tweeter module 2 and the second tweeter module 23 are respectively provided with a V-shaped sound outlet cavity and a sound amplifying hole (or an angle diffusion plate), and the sound outlet cavity is communicated with the sound amplifying hole.
Referring to fig. 1-2, in the preferred embodiment, the housing 1 is further provided with a fixing bracket 12 and a mounting block 13, the fixing bracket 12 is connected with the housing 1, the mounting block 13 is rotatably connected with the fixing bracket 12, and the overall convenience of the sound box is realized through the rotatably connected mounting block 13.
The beneficial effects of the invention are as follows: the invention provides a line array type sound box, which is characterized in that a side compensation unit is additionally arranged, the connection between high-pitched sound and middle-pitched sound is realized through an adjustable second high-pitched sound module, and meanwhile, the side compensation unit and a main expansion unit are of an integrated structure.
In this specification, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.
In the description of the present specification, a description of the terms "preferred embodiment," "further embodiment," "other embodiments," or "specific examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
While embodiments of the present application have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the application, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the application.
Claims (10)
1. The utility model provides a line array formula audio amplifier, includes casing, main unit and the side of expanding mends the unit, be equipped with the accommodation chamber in the casing, main unit and the side of expanding mend the unit all are located the accommodation intracavity. The side complement unit is located one side of the main expansion unit, the main expansion unit comprises a bass module, a first midrange module and a first treble module, the bass module and the first midrange module are located on two sides of the first treble module respectively, the side complement unit is characterized in that the side complement unit comprises an adjusting mechanism, a second midrange module and a second treble module, the second midrange module is connected with the first midrange module, one end of the adjusting mechanism is connected with the shell, the other end of the adjusting mechanism is connected with the second treble module, and the adjusting structure can control the second treble module to be close to or far away from the second midrange module.
2. The wire array type sound box according to claim 1, wherein one end of the second midrange module is connected with the first midrange module, and the other end of the second midrange module is arranged obliquely outwards relative to the first midrange module;
Or, the second midrange module comprises a first midrange unit and a second midrange unit, one end of the first midrange unit is connected with the first midrange module, and the other end of the first midrange unit is connected with the second midrange unit; the first midrange unit is arranged in an outward inclined mode relative to the first midrange module, and the second midrange unit is arranged in an outward inclined mode relative to the first midrange unit.
3. The wire array type sound box according to claim 1 or 2, wherein the first middle sound unit and the second middle sound unit are arranged obliquely relative to the first middle sound module in an angle increasing manner, and the oblique angles of the first middle sound unit and the second middle sound unit are acute angles.
4. The wire array type sound box according to claim 1, wherein the adjusting mechanism comprises an adjusting piece and a fixing piece, a fixing plate is arranged on the shell, an adjusting groove which is connected with the adjusting piece in a matching mode is formed in the fixing plate, one end of the adjusting piece is located in the adjusting groove, and the other end of the adjusting piece is connected with the second high-pitch module through the fixing piece.
5. The wire array type sound box according to claim 4, wherein a plurality of tooth blocks are arranged on the adjusting piece at intervals, the adjusting groove comprises an L-shaped groove and an arc-shaped groove which are communicated, tooth grooves which are connected with the tooth blocks in a matching mode are formed in the arc-shaped groove, and the adjusting piece is connected with the L-shaped groove and the arc-shaped groove in a matching mode.
6. The wire array type sound box according to claim 1, wherein a mounting bracket is arranged in the accommodating cavity and divides the accommodating cavity into a main expansion cavity and a side compensation cavity, the main expansion unit is positioned in the main expansion cavity, and the side compensation unit is positioned in the side compensation cavity.
7. The wire array type sound box according to claim 1, wherein the shell comprises a fixing plate, the fixing plate is made of sound-transmitting materials, or sound-transmitting holes are formed in the fixing plate, and the sound-transmitting holes are uniformly distributed.
8. The line array type sound box according to claim 1, wherein the shell is provided with a sound transmission area connected with the occurrence plane of the main expansion unit and the side compensation unit; the sound transmission area comprises a first area and a second area, the shell is provided with a fixed plate, a side plate and a bottom plate which are connected, the side plate and the fixed plate are both positioned in the first area, and the side plate and the fixed plate are arranged at intervals and are made of sound transmission materials; the bottom plate is positioned in the second area and made of an acoustic transmission material;
Or a plurality of sound transmission holes are formed in the fixing plate, the side plate and the bottom plate, and the sound transmission holes are uniformly distributed.
9. The line array loudspeaker of claim 8, wherein the first and second tweeter modules each include a sound amplifying aperture, the sound amplifying aperture disposed proximate the first region; and the first midrange module and the second midrange module are respectively provided with a reversing hole, and the reversing holes are communicated with the second area.
10. The wire array type sound box according to claim 1, wherein a fixing support and a mounting block are further arranged on the shell, the fixing support is connected with the shell, and the mounting block is rotatably connected with the fixing support.
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| CN202410474871.0A CN118200776B (en) | 2024-04-19 | 2024-04-19 | Linear array type sound box |
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| CN202410474871.0A CN118200776B (en) | 2024-04-19 | 2024-04-19 | Linear array type sound box |
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| CN213522338U (en) * | 2020-11-25 | 2021-06-22 | 广州市锐丰智能科技有限公司 | Three-frequency-division linear array sound column type sound box |
| CN215222419U (en) * | 2021-06-30 | 2021-12-17 | 广州华智纵横科技有限公司 | Three-frequency-division linear array sound column type sound box |
| CN215682558U (en) * | 2021-09-28 | 2022-01-28 | 佛山市艺声音响制造有限公司 | Linear array type sound box convenient for adjusting beam pointing direction |
| CN114786087A (en) * | 2022-04-22 | 2022-07-22 | 深圳市艾比欧视听科技有限公司 | Adjustable vertical direction's public address sound column |
| CN219740556U (en) * | 2023-03-27 | 2023-09-22 | 东莞颖利电子有限公司 | Sound box with multi-sound-cavity structure |
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| CN118200776B (en) | 2024-10-01 |
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Effective date of registration: 20241023 Address after: No. 117, Jiaoxin Road, Lanhe Town, Nansha District, Guangzhou City, Guangdong Province 510000, China Patentee after: Guangdong Pulaisheng Performance Equipment Co.,Ltd. Country or region after: China Address before: No. 10 Huaifu Road, Dahuai Town, Enping City, Jiangmen City, Guangdong Province, 529400 Patentee before: Guangdong Yuchuang Sound and Light Technology Co.,Ltd. Country or region before: China |