CN210274500U

CN210274500U - Long-range loudspeaker box

Info

Publication number: CN210274500U
Application number: CN201921373949.0U
Authority: CN
Inventors: 赵跃
Original assignee: Shenzhen Jingxiong Technology Co ltd
Current assignee: Shenzhen Jingxiong Technology Co ltd
Priority date: 2019-08-22
Filing date: 2019-08-22
Publication date: 2020-04-07
Anticipated expiration: 2029-08-22

Abstract

The utility model discloses a long-range sound box, which comprises a box body and a loudspeaker arranged in the inner cavity of the box body; the inner cavity of the box body is provided with a compression cavity, the two loudspeakers are fixed in the compression cavity, and the front ends of the loudspeakers face the compression cavity; the compression cavity is communicated with the sound outlet. The utility model arranges the loudspeaker in the compression cavity through the optimized design of the structure of the sound box body, thereby avoiding the loudspeaker arranged on the sound box body from being easily damaged; in rainy days or wet occasions, the loudspeaker on the sound box body is prevented from being wetted, so that the loudspeaker of the core component of the sound box is safer.

Description

Long-range loudspeaker box

Technical Field

The utility model relates to a audio amplifier technical field, the more specifically long range audio amplifier that says so.

Background

At present, the double eighteen-inch bass loudspeaker box is generally used for matching with a full-frequency loudspeaker box to be applied to performances, concerts, large-scale gatherings and the like of large occasions such as theaters, halls, bars, stadiums, outdoor performance stages and the like, but in the using process, the common double eighteen-inch bass loudspeaker box has the following defects:

1. eighteen inch woofers of two horns on the market are eighteen inch woofers of conventional two, and the design of the loudspeaker box body usually adopts the direct projection mode, namely 90 degrees of horn angle vertical installation are on the front panel of the loudspeaker box body, and the loudspeaker vibrations paper basin face is outwards. Due to the structural design of the sound box, the loudspeaker is easy to damage in the process that the sound box for the flowing performance is frequently moved and moved. Because the vibration paper basin of the loudspeaker faces outwards, the vibration paper basin can be easily touched with external substances, and the vibration paper basin of the loudspeaker is damaged. In addition, if the sound box structure is applied to rain in the process of performance or a performance site is relatively wet, the paper cone vibrated by the loudspeaker unit in the sound box is easily wetted and dampened, and therefore the service life of the whole sound box and the music effect on the site are influenced.

2. Eighteen cun bass speaker of two loudspeaker in the market is called direct projection formula box structure on box structural design usually, and the front panel at the audio amplifier box is installed to the loudspeaker unit, and speaker vibrations sound production cone outwards, and such structure is more convenient from audio amplifier production assembly, and loudspeaker installation direct mount is at the front panel. However, the utilization of the energy of the speaker in the whole sound box is disadvantageous because the sound of the sound box is known to transmit the energy to the ears of a person by vibrating sound waves through a cone of a horn to push air to move densely and sparsely. However, the vibration of the cone of the loudspeaker has forward movement (positive half cycle) and backward movement (negative half cycle), and the eighteen double-inch bass sound boxes in the market are designed in a direct-projection type box structure, so that when the loudspeaker unit works, the direct-projection type box only utilizes the forward movement positive half cycle energy of the loudspeaker, and most of the backward movement negative half cycle energy is wasted in the box, and no useful energy is formed.

3. When the twenty-eight inch bass loudspeaker boxes in the market are used in large occasions, the low-frequency energy which often occurs at a far position cannot effectively transmit the low-frequency sound energy, so that audiences who are in the front row usually have a hearing feeling of deafness, and audiences who are sitting at a position relatively close to the back usually have a hearing feeling of 'single sound' and 'no shock'. When the auxiliary sound box is used in a large occasion, the situations can be reduced by using more auxiliary sound boxes and supplementary sound boxes in the middle and rear fields. However, such an existing design causes a new problem that two sounds, i.e., the sound of the sound compensation speaker and the sound of the front main amplification speaker, appear in the sense of hearing of the middle and back field audiences, and the two sounds have a time difference, which still causes a sense of dissonance in the sense of hearing.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome prior art not enough, provide a long range audio amplifier.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a long-range sound box comprises a box body and a loudspeaker arranged in an inner cavity of the box body; the inner cavity of the box body is provided with a compression cavity, the two loudspeakers are fixed in the compression cavity, and the front ends of the loudspeakers face the compression cavity; the compression cavity is communicated with the sound outlet.

The further technical scheme is as follows: the vibration cavity is arranged on one side of the compression cavity; the rear end of the horn is communicated with the vibration cavity.

The further technical scheme is as follows: the vibration cavity is provided with a sound guide hole; the sound guide hole and the sound outlet are positioned on the same side of the box body.

The further technical scheme is as follows: the sound guide hole is positioned in the vibration cavity and provided with a sound guide plate; the sound guide plate extends to the rear end of the loudspeaker, and the sound guide plate forms a sound guide channel.

The further technical scheme is as follows: and one side of the box body, which is close to the sound guide hole and the sound outlet, is provided with a mesh enclosure.

The further technical scheme is as follows: a sound outlet cavity is arranged between the compression cavity and the sound outlet; the sound outlet cavity is of a conical cavity structure, one end facing the sound outlet is a large end, and the other end facing the compression cavity is a small end; the compression cavity is of a conical cavity structure, one end far away from the sound outlet cavity is a large end, and the other end close to the sound outlet cavity is a small end.

The further technical scheme is as follows: the inner cavity of the box body is divided into a compression cavity and two vibration cavities by two clapboards; the loudspeaker are fixed on the partition plate, the front end of the loudspeaker faces the compression cavity, and the rear end of the loudspeaker faces the vibration cavity.

The further technical scheme is as follows: the partition plate comprises an installation part for installing the loudspeaker and a guide part; the mounting part and the inner wall of the box body form the compression cavity; the guide part and the inner wall of the box body form the sound outlet cavity; an included angle of 50-170 degrees is formed between the installation part and the guide part, so that the compression cavity and the sound outlet cavity form a conical cavity structure.

The further technical scheme is as follows: an adjusting plate is arranged at one end of the sound outlet cavity close to the sound outlet.

Compared with the prior art, the utility model beneficial effect be: the utility model arranges the loudspeaker in the compression cavity through the optimized design of the structure of the sound box body, thereby avoiding the loudspeaker arranged on the sound box body from being easily damaged; in rainy days or wet occasions, the loudspeaker on the sound box body is prevented from being wetted, so that the loudspeaker of the core component of the sound box is safer. The box body adopts a compression cavity structure design, so that sound waves can be transmitted farther, and therefore, in large-scale movable use, a sound-supplementing bass sound box does not need to be added in a middle and rear field. The structural design of compression chamber and vibrations chamber can also get up the vibrations energy utilization of loudspeaker negative half cycle, superposes with positive half cycle sound energy mutually, has promoted audio amplifier loudspeaker's availability factor, and the totality has increased the audio amplifier total power.

The utility model discloses can make and need the audio frequency sound amplification system that high-power long range covered at large-scale performance sound system, large-scale theater, bar etc. or reduce the occasion of sound system's bass audio amplifier quantity to reduce sound system's equipment cost, also can reduce sound system like this and build, cost of transportation, can not appear being the scene of audio amplifier everywhere after reducing the use quantity of bass audio amplifier, can make the stage picture harmonious more, clean. The utility model discloses a design makes bass sound effect shake more, the dynamics is stronger, more accord with the big dynamic public address demand of big occasion, and the compression design makes the low frequency energy throw the conveying farther, reaches better effect.

The foregoing is a summary of the present invention, and other objects, features and advantages of the present invention will be apparent from the following detailed description of the preferred embodiments, which is provided for the purpose of illustration and understanding of the present invention.

Drawings

Fig. 1 is an internal structure view of a long-range speaker of the present invention;

fig. 2 is a structural view of the long-range speaker of the present invention with the inner structure of the mesh enclosure removed;

fig. 3 is a top view of the internal structure of a long-range speaker of the present invention;

fig. 4 is a schematic diagram of the sound production of the long-range speaker of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings and the detailed description.

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be connected or detachably connected or integrated; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean 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 invention. In this specification, the schematic representations of the terms used above should not be understood to necessarily refer 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, various embodiments or examples described in this specification can be combined and combined by one skilled in the art.

Fig. 1 to 4 are drawings of the present invention.

The present embodiment provides a long-range speaker, please refer to fig. 1 to 3, which includes a box 10 and a speaker 11 disposed in an inner cavity of the box 10. The inner cavity of the box body 10 is provided with a compression cavity 12, the two horns 11 are fixed in the compression cavity 12, and the front ends of the horns 11 face the compression cavity 12. The compression chamber 12 is in communication with a sound outlet 13 provided therein. The horn 11 is disposed in the compression chamber 12, so that the horn 11 does not need to be disposed directly on the surface of the casing 10, thereby preventing the horn from being damaged by environmental factors.

Preferably, the two horns 11 are oppositely arranged, so that the sound emitted by the two horns 11 is superposed and concentrated in the compression chamber 12 and then is transmitted out through the sound outlet 13.

The loudspeaker also comprises a vibration cavity 14, and the rear end of the loudspeaker 11 is communicated with the vibration cavity 14. The vibration chamber 14 is provided at one side of the compression chamber 12 and is isolated from each other.

The vibration chamber 14 is provided with a sound guide hole 15. The sound guide hole 15 and the sound outlet 13 are located on the same side of the box 10, so that the sound emitted from the rear end of the speaker 11 and the sound emitted from the front end can be transmitted out on the same side and superposed, the energy of vibration is increased, and the sound emission energy is fully utilized.

The front end of loudspeaker 11 is a sound outlet end (sound outlet end), the rear end of loudspeaker 11 is the opposite end of the sound outlet end, and the sound is generated by vibration of the sound generating paper disc, and the sound generating paper disc vibrates forwards to push air to vibrate and generate sound, so that loudspeaker 11 generates sound, and the sound generating paper disc vibrates backwards to push air to generate sound. Referring to fig. 4, the sound emitted from the sound outlet end of the speaker 11 is a positive half cycle, and the sound emitted from the rear end is a negative half cycle, so that the sound guide hole 15 and the sound outlet 13 are overlapped when being transmitted on the same side of the box 10 by the transmission of the vibration cavity 14, thereby improving the use efficiency of the sound box.

The sound guide hole 15 is provided with a sound guide plate 16 inside the vibration chamber 14. The sound guide plate 16 extends to the rear end of the horn 11, and the sound guide plate 16 forms a sound guide passage 17. The sound guide passage 17 is communicated with the sound guide hole 15 so that the sound emitted from the rear end of the horn 11 is transmitted to the sound guide hole 15 through the sound guide passage 17 and then transmitted out of the sound guide hole 15.

Preferably, the cabinet 10 is provided with a mesh 18 on a side close to the sound guide hole 15 and the sound outlet 13. The mesh 18 may protect the inner cavity of the cabinet 10, or may filter the sound emitted from the sound guide hole 15 and the sound outlet 13.

A sound outlet cavity 19 is arranged between the compression cavity 12 and the sound outlet 13. The sound outlet cavity 19 is a conical cavity structure, and is a large end facing the sound outlet 13 and a small end facing the compression cavity 12. The compression cavity 12 is a tapered cavity structure, and one end far away from the sound outlet cavity 19 is a large end, and the other end close to the sound outlet cavity 19 is a small end.

The inner cavity of the box body 10 is divided into a compression cavity 12 and two vibration cavities 14 by two partition plates 101. The horn 11 is fixed to the diaphragm 101 with the front end of the horn 11 facing the compression chamber 12 and the rear end facing the vibration chamber 14.

The partition 101 includes a mounting portion 1011 for mounting the horn 11, and a guide portion 1012. The installation portion 1011 forms the compression chamber 12 with the inner wall of the casing 10. The guide portion 1012 and the inner wall of the casing 10 form the sound outlet chamber 19. An included angle of 50 to 170 degrees is formed between the mounting portion 1011 and the guiding portion 1012, so that the compression chamber 12 and the sound outlet chamber 19 form a tapered chamber structure.

The partition plate 101 is a bent plate, and the mounting portion 1011 and the guide portion 1012 are two bent portions. The partition plate 101 is bent at a certain angle and fixed in the inner cavity of the case 1, and the partition plate 101 and the inner wall of the case 10 form a compression chamber 12, a vibration chamber 14 and a sound outlet chamber 19.

Preferably, a handle 103 is provided outside the case 10 to facilitate transportation.

Compared with the prior art, the loudspeaker is arranged in the compression cavity through the optimized design of the structure of the sound box body, so that the loudspeaker arranged on the sound box body is prevented from being easily damaged; in rainy days or wet occasions, the loudspeaker on the sound box body is prevented from being wetted, so that the loudspeaker of the core component of the sound box is safer. The box body adopts a compression cavity structure design, so that sound waves can be transmitted farther, and therefore, in large-scale movable use, a sound-supplementing bass sound box does not need to be added in a middle and rear field. The structural design of compression chamber and vibrations chamber can also get up the vibrations energy utilization of loudspeaker negative half cycle, superposes with positive half cycle sound energy mutually, has promoted audio amplifier loudspeaker's availability factor, and the totality has increased the audio amplifier total power.

The utility model discloses can make and need the audio frequency sound amplification system that high-power long range covered at large-scale performance sound system, large-scale theater, bar etc. or reduce the occasion of sound system's bass audio amplifier quantity to reduce sound system's equipment cost, also can reduce sound system like this and build, cost of transportation, can not appear being the scene of audio amplifier everywhere after reducing the use quantity of bass audio amplifier, can make the stage picture harmonious more, clean. The design enables the bass sound effect to be more shocked and stronger, and better meets the sound amplification requirement of large dynamic situations, and the compression design enables the low-frequency energy to be transmitted and projected farther, so that a better effect is achieved.

The technical content of the present invention is further described by the embodiments only, so that the reader can understand it more easily, but the embodiments of the present invention are not limited thereto, and any technical extension or re-creation according to the present invention is protected by the present invention. The protection scope of the present invention is subject to the claims.

Claims

1. A long-range sound box comprises a box body and a loudspeaker arranged in an inner cavity of the box body; the loudspeaker box is characterized in that a compression cavity is formed in the inner cavity of the box body, the two loudspeakers are fixed in the compression cavity, and the front ends of the loudspeakers face the compression cavity; the compression cavity is communicated with a sound outlet;

the vibration cavity is arranged on one side of the compression cavity; the rear end of the horn is communicated with the vibration cavity;

the vibration cavity is provided with a sound guide hole; the sound guide hole and the sound outlet are positioned on the same side of the box body.

2. The long-range speaker of claim 1, wherein the sound guide hole is provided with a sound guide plate inside the vibration chamber; the sound guide plate extends to the rear end of the loudspeaker, and the sound guide plate forms a sound guide channel.

3. The long-range speaker as claimed in claim 1, wherein a mesh is disposed on the side of the case near the sound guide hole and the sound outlet.

4. The long-range acoustic enclosure of claim 1, wherein a sound outlet chamber is provided between the compression chamber and the sound outlet; the sound outlet cavity is of a conical cavity structure, one end facing the sound outlet is a large end, and the other end facing the compression cavity is a small end; the compression cavity is of a conical cavity structure, one end far away from the sound outlet cavity is a large end, and the other end close to the sound outlet cavity is a small end.

5. The long-range speaker as claimed in claim 4, wherein the chamber is divided into a compression chamber and two vibration chambers by two partitions; the loudspeaker are fixed on the partition plate, the front end of the loudspeaker faces the compression cavity, and the rear end of the loudspeaker faces the vibration cavity.

6. The long-range speaker of claim 5, wherein the partition includes a mounting portion for mounting a horn, and a guide portion; the mounting part and the inner wall of the box body form the compression cavity; the guide part and the inner wall of the box body form the sound outlet cavity; an included angle of 50-170 degrees is formed between the installation part and the guide part, so that the compression cavity and the sound outlet cavity form a conical cavity structure.