Multi-cavity integrated sound box

Abstract

The utility model discloses a multi-cavity integrated sound box which comprises a bottom shell, at least two linearly arranged cavity units are arranged in the bottom shell, each cavity unit is provided with a guide hole, the bottom shell is provided with an opening, and the opening is provided with a surface cover used for sealing each cavity unit. And the surface cover is provided with mounting ports which are in one-to-one correspondence with the cavity units and are used for mounting loudspeakers. Compared with the prior art, the interior of the bottom shell is subjected to bin separation treatment, and one loudspeaker unit is located in the independent cavity unit, so that the index requirement of a linear array loudspeaker box can be met, mutual interference among loudspeakers can be reduced, the problem of mutual interference among different loudspeakers in one loudspeaker box is well solved, and the loudspeaker box is more convenient to use. Therefore, the sound box is clear in sound quality and strong in box separation feeling, and large sound pressure attenuation in forward and reverse directions can be realized.

Description

Technical Field

[0001] The utility model relates to the field of sound box manufacturing, in particular to a multi-cavity integrated sound box. Background Art

[0002] Integrated line array speakers are a special type of speaker system that consists of multiple speaker units arranged in a straight line or matrix and working in a synchronized manner. This design enables the speakers to provide a wider and more uniform audio coverage and enhance the sound projection ability.

[0003] Since the speaker units of the integrated line array speakers are arranged in a straight line or in a matrix, the audio can be transmitted to the audience more evenly, avoiding the sound dead spots or uneven sound fields that may exist in traditional speakers. However, compared with traditional speaker systems, integrated line array speakers are usually more expensive and longer than traditional speakers. Existing integrated line array speakers are often designed on the same cavity when multiple speakers are used. Because the vibration frequencies and amplitudes of different units such as tweeters, woofers, and midrange units are different when working, if different speaker units are placed together, they will interfere with each other. Among them, the tweeter is the most affected, which is also easy to affect the vibration of the midrange unit. Utility Model Content

[0004] The purpose of the utility model is to provide a multi-cavity integrated speaker, which solves the technical problem that the integrated line array speaker adopts a one-cavity multi-speaker design in the prior art, causing the speaker units to interfere with each other seriously, thereby seriously affecting the acoustic indicators such as the sound quality of the speaker.

[0005] The technical solution adopted by the utility model is: a multi-cavity integrated sound box, which includes a bottom shell, the bottom shell includes at least two linearly arranged chamber units, each of the chamber units is provided with a guide hole, the bottom shell has an opening, the opening is provided with a surface cover for closing each of the chamber units, and the surface cover is provided with an installation port for installing a speaker corresponding to each of the chamber units.

[0006] Preferably, the guide hole is strip-shaped, elliptical or circular.

[0007] Furthermore, the surface cover is provided with the guide hole.

[0008] Furthermore, a sound guide tunnel and a sound guide cavity are provided in the chamber unit, the speaker is arranged in the sound guide cavity, one end of the sound guide tunnel is connected to the sound guide cavity, and the other end of the sound guide tunnel is connected to the guide hole.

[0009] Preferably, the sound guide tunnel is serpentine and winding.

[0010] Furthermore, the sound guide tunnel and the bottom shell are integrally formed.

[0011] Furthermore, the sound guide tunnel includes a first partition plate and a second partition plate, one end of the first partition plate is connected to the surface cover, the first partition plate divides the chamber unit into a main chamber and a sound channel that are connected to each other, the guide hole is arranged in the sound channel, the installation port is arranged in the main chamber, and the main chamber located at the installation port is the sound guide chamber; one end of the second partition plate is connected to the inner wall of the main chamber, and the other end of the second partition plate has a gap with the main chamber, a number of the second partition plates are arranged in sequence and staggeredly connected to the inner walls on opposite sides of the main chamber to form a serpentine sound guide tunnel, and one end of the serpentine tunnel is connected to the sound channel.

[0012] Furthermore, one end of the first partition plate opposite to the surface cover is arc-shaped, and one end of the second partition plate spaced from the main chamber is arc-shaped.

[0013] Furthermore, a circuit unit module is also provided in the chamber unit, and the circuit unit module includes at least one of a wiring socket, a frequency dividing board, a front-stage decoding circuit board and a rear-stage power amplifier board.

[0014] Compared with the prior art, the chamber units in the present application are separated by a plate body, the chamber units are relatively independent, the loudspeaker is located in an independent chamber unit, and by dividing the interior of the bottom shell into compartments, a loudspeaker unit is located in an independent chamber unit. This can not only meet the index requirements of the line array speaker, but also reduce the mutual interference between the loudspeakers, and well solve the problem of mutual interference between different loudspeakers in a speaker, so that the sound quality of the speaker is clear, the sense of being out of the box is strong, and the forward and reverse sound pressure attenuation can be large; at the same time, in addition to the loudspeaker, a circuit unit module is also provided in the chamber unit, so that the thickness of the speaker can be very small, achieving an ultra-thin effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0016] Figure 1 This is a schematic diagram of the three-dimensional structure of the speaker in the first embodiment of the present utility model;

[0017] Figure 2 This is a schematic diagram of the exploded structure of the speaker in the first embodiment of the present utility model;

[0018] Figure 3 This is a schematic diagram of the three-dimensional structure of the speaker in the second embodiment of the present utility model;

[0019] Figure 4 This is a schematic diagram of the exploded structure of the speaker in the second embodiment of the present utility model;

[0020] Figure 5 This is a schematic diagram of the three-dimensional structure of the speaker in the third embodiment of the present utility model;

[0021] Figure 6 This is a schematic diagram of the exploded structure of the speaker in Embodiment 3 of the present utility model;

[0022] Figure 7 It is a schematic diagram of the cross-sectional structure of the sound guide tunnel in the third embodiment of the present utility model.

[0023] The main figures in this application are:

[0024] 1. Bottom shell; 2. Chamber unit; 3. Guide hole; 4. Surface cover; 41. Installation port; 5. Sound guide tunnel; 6. Sound guide cavity; 7. First partition plate; 8. Second partition plate; 9. Main cavity; 10. Sound channel; 11. Circuit unit module. DETAILED DESCRIPTION

[0025] The following is an explanation of the implementation of the present application by means of specific embodiments. People familiar with the art can easily understand other advantages and effects of the present application from the contents disclosed in this specification.

[0026] In the following description, with reference to the accompanying drawings, several embodiments of the present application are described. It should be understood that other embodiments may also be used, and mechanical composition, structure, electrical and operational changes may be made without departing from the spirit and scope of the present disclosure. The following detailed description should not be considered restrictive, and the scope of the embodiments of the present application is limited only by the claims of the published patents. The terms used here are only to describe specific embodiments and are not intended to limit the present application. Spatially related terms, such as "upper", "lower", "left", "right", "below", "below", "lower", "above", "upper", etc., may be used in the text to facilitate the description of the relationship between an element or feature shown in the figure and another element or feature.

[0027] Although the terms first, second, etc. are used to describe various elements or parameters in this article in some instances, these elements or parameters should not be limited by these terms. These terms are only used to distinguish one or parameter part from another or parameter. For example, the first end can be referred to as the second end, and similarly, the second end can be referred to as the first end, without departing from the scope of the various described embodiments. The first end and the second end are both describing one end, but unless the context clearly indicates otherwise, they are not the same end.

[0028] The present application proposes a multi-chamber integrated speaker, wherein the multi-chamber integrated speaker in the present application includes a base body composed of a bottom shell 1 and a surface cover 4, wherein a loudspeaker and various necessary circuit unit modules 11 are arranged inside the base body to together form a complete speaker device, wherein the speaker in the present application is an integrated line array speaker, the bottom shell 1 has an opening, and from the perspective of the opening of the bottom shell 1, the interior of the bottom shell 1 includes at least two chamber units 2 arranged linearly, and the surface cover 4 is installed at the opening of the bottom shell 1 to close the chamber unit 2, the chamber unit 2 is provided with a guide hole 3, and the surface cover 4 is provided with a mounting port 41, and various sound modules including the loudspeaker are installed inside the bottom shell 1, which will be described in detail below in conjunction with specific embodiments.

[0029] Embodiment 1

[0030] See attached Figure 1 , 2 As shown, the bottom shell 1 in this embodiment has four chamber units 2 inside, that is, the sound box in this embodiment is a four-speaker sound box, the four chamber units 2 are arranged linearly, and each chamber unit 2 is separated by a plate, the chamber units 2 are relatively independent, and four installation ports 41 are provided on the cover 4, each installation port 41 corresponds to the installation of a speaker, and the speaker is located in an independent chamber unit 2. This application divides the inside of the bottom shell 1 into compartments, and a speaker unit is located in an independent chamber unit 2. In this way, the index requirements of the line array speaker can be met, and the mutual interference between the speakers can be reduced, and the interference problem between different speakers in a speaker is well solved, so that the sound quality of the speaker is clear, the sense of being out of the box is strong, and the forward and reverse sound pressure attenuation can be large; at the same time, the design of this embodiment can make the thickness of the speaker very small, achieving an ultra-thin effect.

[0031] In addition, the guide hole 3 in this embodiment is arranged on the cover 4, and the guide hole 3 is located on one side of the speaker, that is, the guide hole 3 is arranged in front of the sound box, and the front-guided design is adopted to maximize the sound pressure difference between the forward and reverse directions. The front-guided design guides the path of sound wave propagation so that the sound can be transmitted to the listener's position more concentratedly. This design can effectively reduce the scattering and reflection of the sound, making the sound box effect more focused, providing clearer and more accurate sound, while reducing sound distortion and enhancing bass performance. In other embodiments, the guide hole 3 can also be arranged at the back, side, etc. of the sound box.

[0032] Furthermore, in the present embodiment, the guide hole 3 is designed to be in a strip shape. Compared with the traditional circular guide hole 3, the speaker with the guide hole 3 can effectively reduce the resonance of the speaker itself, and at the same time, the output bass dives deeper and cleaner.

[0033] Embodiment 2

[0034] See attached Figure 3 , 4 As shown, in this embodiment, there are two chamber units 2 inside the bottom shell 1, that is, the speaker in this embodiment is a dual-speaker speaker, the two chamber units 2 are arranged linearly, and each chamber unit 2 is separated by a plate, the chamber units 2 are relatively independent, and two installation ports 41 are provided on the surface cover 4, each installation port 41 corresponds to the installation of a speaker, and the speaker is located in an independent chamber unit 2. This application divides the interior of the bottom shell 1 into compartments, and a speaker unit is located in an independent chamber unit 2. In this way, the index requirements of the line array speaker can be met, and the mutual interference between the speakers can be reduced, which well solves the problem of interference between different speakers in a speaker, so that the sound quality of the speaker is clear, the sense of being out of the box is strong, and the forward and reverse sound pressure attenuation can be large. The guide hole 3 in this embodiment is also provided on the cover 4, and the guide hole 3 is located on one side of the speaker, that is, the guide hole 3 is provided in front of the sound box. The front-guided design has more advantages in terms of sound pressure difference. The front-guided design guides the path of sound wave propagation so that the sound can be transmitted to the listener's position more concentratedly. This design can effectively reduce the scattering and reflection of the sound, making the sound box effect more focused, providing clearer and more accurate sound, while reducing sound distortion and enhancing bass performance. In other embodiments, the guide hole 3 can also be provided at the back, side, etc. of the sound box.

[0035] Embodiment 3

[0036] Combined with Figure 5 , 6As shown, in this embodiment, there are two chamber units 2 inside the bottom shell 1, that is, the speaker in this embodiment is a dual-speaker speaker, the two chamber units 2 are arranged linearly, and each chamber unit 2 is separated by a plate, the chamber units 2 are relatively independent, and two installation ports 41 are provided on the surface cover 4, each installation port 41 corresponds to the installation of a speaker, and the speaker is located in an independent chamber unit 2. This application divides the interior of the bottom shell 1 into compartments, and a speaker unit is located in an independent chamber unit 2. In this way, the index requirements of the line array speaker can be met, and the mutual interference between the speakers can be reduced, which well solves the problem of interference between different speakers in a speaker, so that the sound quality of the speaker is clear, the sense of being out of the box is strong, and the forward and reverse sound pressure attenuation can be large. The guide hole 3 in this embodiment is also provided on the cover 4, and the guide hole 3 is located on one side of the speaker, that is, the guide hole 3 is provided in front of the sound box. The front-guided design has more advantages in terms of sound pressure difference. The front-guided design guides the path of sound wave propagation so that the sound can be transmitted to the listener's position more concentratedly. This design can effectively reduce the scattering and reflection of the sound, making the sound box effect more focused, providing clearer and more accurate sound, while reducing sound distortion and enhancing bass performance. In other embodiments, the guide hole 3 can also be provided at the back, side, etc. of the sound box.

[0037] Combined with Figure 6 , 7 As shown, a tunnel design is further added in the present embodiment, that is, a sound guide tunnel 5 and a sound guide cavity 6 are provided in the chamber unit 2, and the speaker is arranged in the sound guide cavity 6; wherein, one end of the sound guide tunnel 5 is connected to the sound guide cavity 6, and the other end of the sound guide tunnel 5 is connected to the guide hole 3. Combined with the design of the front guide hole 3, the present application can increase the propagation path of the sound, thereby making the speaker have the characteristics of high resolution, clearer sound quality, stronger sense of the speaker sound coming out of the box, better balance and dynamics of the high, medium and low frequencies, etc.

[0038] Preferably, the sound guide tunnel 5 is in a serpentine shape, so that the sound guide tunnel 5 is long enough to meet the low-frequency requirements. For example, if the low frequency of the speaker is to reach 80Hz, the tunnel must be 1.1 meters long, so it is designed to be serpentine to achieve a length of 1.1 meters.

[0039] It should be noted that the number of chamber units 2 can be set according to the number of speakers, and can correspond to the number of speakers, and this application does not limit it. In addition, no matter which embodiment is used, the design scheme of combining the front guide hole 3 with the sound guide tunnel 5 can be adopted.

[0040] Furthermore, in each embodiment of the present application, the sound guide tunnel 5 and the bottom shell 1 can be integrally formed to achieve mass production of the speaker; of course, the sound guide tunnel 5 and the bottom shell 1 can also be designed as a split body to meet the diverse needs of users.

[0041] Whether it is an integrated molding or a split design, the sound guide tunnel 5 can adopt the following structural design: the sound guide tunnel 5 includes a first partition plate 7 and a second partition plate 8, one end of the first partition plate 7 is connected to the surface cover 4, the first partition plate divides the chamber unit 2 into a main chamber 9 and a sound channel 10 that are connected to each other, the guide hole 3 is provided in the sound channel 10, the installation port 41 is provided in the main chamber 9, the main chamber 9 is located at the installation port 41 as the sound guide chamber 6, one end of the second partition plate 8 is connected to the inner wall of the main chamber 9, the other end of the second partition plate 8 is spaced from the main chamber 9, and a plurality of second partition plates 8 are arranged in sequence The inner walls on opposite sides of the main chamber 9 are staggeredly connected to form a serpentine sound guide tunnel 5, one end of which is connected to the sound channel 10. The serpentine sound guide tunnel 5 is formed by dividing the main chamber 9 with a partition plate, which can maximize the use of the internal space of the main chamber 9 to form a sound guide tunnel 5 with the largest cross-sectional area, thereby ensuring the energy of sound transmission and generating a larger sound output. The larger cross-sectional area of ​​the sound guide tunnel 5 can better support the generation and propagation of bass, because low-frequency sound waves require a larger space to vibrate and propagate, making the low frequency richer and deeper.

[0042] Preferably, the end of the first partition plate 7 opposite to the surface cover 4 is arc-shaped, and the end of the second partition plate 8 spaced from the main chamber 9 is arc-shaped, so as to ensure the smoothness of sound transmission and reduce interference in transmission.

[0043] In addition to the speaker, the chamber unit 2 is also provided with a circuit unit module 11, which includes at least one of a wiring socket, a crossover board, a pre-stage decoding circuit board and a post-stage power amplifier board. Corresponding interfaces or fixing holes are reserved on the bottom shell 1 to fix the circuit unit module 11 of the speaker in certain chamber units 2. The circuit unit module 11 can be configured in different modular ways according to the specific functions of the speaker, so as to improve the resolution and out-of-box feel of the speaker, so as to meet the usage requirements of different scenarios.

[0044] In summary, the chamber units in the present application are separated by a plate, the chamber units are relatively independent, the loudspeaker is located in an independent chamber unit, and by dividing the interior of the bottom shell into compartments, a loudspeaker unit is located in an independent chamber unit. This can not only meet the index requirements of the line array speaker, but also reduce the mutual interference between the loudspeakers, and well solve the problem of mutual interference between different loudspeakers in a speaker, so that the sound quality of the speaker is clear, the sense of being out of the box is strong, and the forward and reverse sound pressure attenuation can be large; at the same time, in addition to the loudspeaker, a circuit unit module is also provided in the chamber unit, so that the thickness of the speaker can be very small, achieving an ultra-thin effect.

[0045] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A multi-chamber integrated sound box, characterized in that: It includes a bottom shell, which includes at least two chamber units arranged linearly, each of the chamber units is provided with a guide hole, the bottom shell has an opening, and the opening is provided with a surface cover for closing each of the chamber units, and the surface cover is provided with an installation port for installing a speaker corresponding to each of the chamber units.

2. The multi-chamber integrated sound box according to claim 1, characterized in that: The guide hole is in the shape of a strip, an ellipse or a circle.

3. The multi-chamber integrated sound box according to claim 2, characterized in that: The surface cover is provided with the guide hole.

4. The multi-chamber integrated sound box according to claim 3, characterized in that: A sound guide tunnel and a sound guide cavity are provided in the chamber unit, the speaker is provided in the sound guide cavity, one end of the sound guide tunnel is connected to the sound guide cavity, and the other end of the sound guide tunnel is connected to the guide hole.

5. The multi-chamber integrated sound box according to claim 4, characterized in that: The sound guide tunnel is in a serpentine and winding shape.

6. The multi-chamber integrated sound box according to claim 5, characterized in that: The sound guide tunnel and the bottom shell are integrally formed.

7. The multi-chamber integrated sound box according to claim 5, characterized in that: The sound guide tunnel includes a first partition plate and a second partition plate, one end of the first partition plate is connected to the surface cover, the first partition plate divides the chamber unit into a main chamber and a sound channel that are connected, the guide hole is provided in the sound channel, the installation port is provided in the main chamber, and the main chamber located at the installation port is the sound guide chamber; One end of the second partition plate is connected to the inner wall of the main chamber, and a gap is formed between the other end of the second partition plate and the main chamber. Several second partition plates are arranged in sequence and staggeredly connected to the inner walls on opposite sides of the main chamber to form a serpentine sound-guiding tunnel, and one end of the serpentine tunnel is connected to the sound channel.

8. The multi-chamber integrated sound box according to claim 7, characterized in that: One end of the first partition plate opposite to the surface cover is arc-shaped, and one end of the second partition plate spaced from the main chamber is arc-shaped.

9. The multi-chamber integrated sound box according to claim 1, characterized in that: A circuit unit module is also provided in the chamber unit, and the circuit unit module includes at least one of a wiring socket, a frequency dividing board, a front-stage decoding circuit board and a rear-stage power amplifier board.

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