Cylindrical sound box

Abstract

The utility model provides a cylindrical sound box comprising a box body which comprises at least two radiation modules. The plurality of radiation modules are vertically arranged; the radiation module comprises a high-frequency unit and a low-frequency unit, and the high-frequency unit and the low-frequency unit are sequentially arranged from top to bottom; and in the same radiation module, the high-frequency unit is arranged above the low-frequency unit. At least two groups of radiation modules are arranged, the plurality of radiation modules are vertically arranged, the upper radiation module performs far-field sound coverage, and the lower radiation module performs near-field sound coverage, so that the effect of uniform far and near distance sound pressure is achieved, and the problem that an existing sound box cannot hear clearly at a far position or a near position is solved; and the user experience is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of sound boxes, and in particular relates to a columnar sound box. Background Art

[0002] Most common column speakers on the market use single-point horn radiation and dumbbell design.

[0003] Single-point horn radiation generally has a horn on the top of the speaker and several woofers below the horn. These designs are relatively simple. Due to the efficient radiation characteristics of the horn, high-frequency sounds can travel farther and maintain good clarity and loudness. However, the disadvantage of this design is that when the audience is close to the speaker, the high-frequency sound will appear relatively weak because most of the energy is designed to radiate far away.

[0004] The dumbbell design usually has a horn placed between two woofers; the horn is placed in the middle of the speaker, and the woofers are symmetrically distributed on both sides, forming a dumbbell-like shape; when close to the speaker, the uniformity and coverage of the sound are better, but when far away from the speaker, because the horn is not optimized to enhance long-distance radiation, the propagation ability of high-frequency sound may be weakened, resulting in a decrease in sound clarity and loudness in the far field.

[0005] The above situation reflects that the existing speakers have the problem of uneven sound propagation. Therefore, a speaker is needed that can clearly hear the sound both near and far. Utility Model Content

[0006] In view of the deficiencies in the prior art, the utility model proposes a columnar speaker with uniform sound pressure at long and short distances, thereby improving the user experience.

[0007] The technical solution of the utility model is achieved in this way:

[0008] A columnar speaker comprises a box body, wherein the box body comprises at least two radiation modules; the multiple radiation modules are arranged vertically; the radiation modules comprise a high-frequency unit and a low-frequency unit, and the high-frequency unit and the low-frequency unit are arranged in sequence from top to bottom; in the same radiation module, the high-frequency unit is arranged above the low-frequency unit.

[0009] In a preferred embodiment, the high-frequency unit includes a horn and a high-frequency driver connected to the rear end of the horn.

[0010] In a preferred embodiment, the radiation module includes a high-frequency unit and two low-frequency units.

[0011] In a preferred embodiment, the number of the radiation modules is three.

[0012] In a preferred embodiment, the size of the low frequency unit ranges from 5 inches to 6 inches.

[0013] In a preferred embodiment, a horizontally symmetrical guide hole is provided between two low-frequency units of the same radiation module.

[0014] In a preferred embodiment, the throat diameter of the high frequency driver is 1 inch, and the voice coil diameter of the high frequency driver is 44 cores.

[0015] In a preferred embodiment, a diffusion plate is provided at the front end of the horn, and the angle range of the diffusion plate is 110°-130°.

[0016] In a preferred embodiment, a handle is provided on the back of the box body near the bottom of the box body.

[0017] Compared with the prior art, the utility model has the following advantages:

[0018] The columnar speaker of the utility model is provided with at least two groups of radiation modules, and the multiple radiation modules are arranged vertically, and the radiation modules include a high-frequency unit and a low-frequency unit. In the same radiation module, the high-frequency unit is arranged above the low-frequency unit. According to the physical characteristics that the wavelength of high-frequency sound is shorter and the wavelength of low-frequency sound is longer, the utility model adjusts the placement of the high-frequency unit and the low-frequency unit of the columnar speaker, that is, multiple groups of radiation modules are arranged at a vertical height, the radiation modules placed on top are used for far-field sound coverage, and the radiation modules placed on the bottom are used for near-field sound coverage, so as to achieve the effect of uniform sound pressure at far and near distances, solve the problem of unclear hearing at far or near distances in existing speakers, and improve the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, 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 utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0020] Figure 1 It is a side view of the columnar speaker of the utility model;

[0021] Figure 2 It is a three-dimensional diagram of the columnar speaker of the utility model;

[0022] Figure 3 It is a front view schematic diagram of the columnar speaker of the utility model;

[0023] Figure 4 It is a rear view of the columnar speaker of the utility model;

[0024] Figure 5 for Figure 2 Enlarged view of point A in the middle.

[0025] Figure ID:

[0026] 1-Box;

[0027] 2-Radiation module;

[0028] 3-high frequency unit; 31-horn; 311-diffuser; 32-high frequency driver;

[0029] 4- low frequency unit; 41- guide hole;

[0030] 5-Handle;

[0031] 6- Back panel. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0033] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present utility model. In addition, the terms "first", "second", "third", "fourth", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0034] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] See also Figures 1 to 5The utility model discloses a columnar speaker, including a box body 1, wherein the box body 1 includes at least two radiation modules 2, wherein the plurality of radiation modules 2 are arranged vertically, wherein the radiation modules 2 arranged at a high position perform far-field sound coverage, and the radiation modules 2 arranged at a low position perform near-field sound coverage, so as to achieve the effect of uniform coverage of sound in the vertical direction. Specifically, the radiation module 2 includes a high-frequency unit 3 and a low-frequency unit 4, wherein the high-frequency unit 3 and the low-frequency unit 4 are placed in sequence from top to bottom, and within the same radiation module 2, the high-frequency unit 3 is arranged above the low-frequency unit 4. Due to the characteristics that high-frequency sound waves are shorter and low-frequency sound waves are longer, the high-frequency unit 3 is arranged above the low-frequency unit 4, which helps the sound propagate downward, reduces the absorption and scattering of high-frequency sound by the ground and other obstacles, thereby maintaining the clarity and propagation distance of the high-frequency sound. The high-frequency unit 3 and the low-frequency unit 4 are improved in space to promote sound fusion and improve the consistency and naturalness of the overall sound quality.

[0036] In this embodiment, the high-frequency unit 3 includes a horn 31 and a high-frequency driver 32 connected to the rear end of the horn 31. Specifically, the horn 31 is a component used to improve the sound radiation efficiency and control the sound directivity, and is commonly used in the high-frequency part of most speakers on the market. The high-frequency driver 32 is connected to the rear of the horn 31 due to the physical characteristics of the short wavelength of high-frequency sound. The high-frequency driver 32 includes a small voice coil. When the current passes through the voice coil, the magnetic field generated interacts with the magnet in the high-frequency driver 32, pushing the diaphragm in the high-frequency driver 32 to vibrate, thereby generating high-frequency sound waves, that is, the high-frequency driver 32 is used to generate high-frequency sound waves; and the horn 31 connected to the front of the high-frequency driver 32 amplifies and guides the high-frequency sound waves. The design of the horn 31 is a gradually expanding tubular structure, which reduces the attenuation of high-frequency sound waves in the air and allows the high-frequency sound to travel farther. Due to the physical characteristics of high-frequency sound, the high-frequency driver 32 is usually used in conjunction with the horn 31 to allow the high-frequency sound to travel farther.

[0037] Furthermore, the low-frequency unit 4 is only composed of a speaker, the low-frequency sound wave is longer, and the low-frequency sound itself has good penetration and diffusion, so there is no need to connect the horn 31 in front.

[0038] Preferably, the horn 31 can adopt a curvature waveguide horn, which can more effectively control the propagation direction and diffusion range of high-frequency sound, reduce the physical depth of the horn 31 itself, that is, reduce the size of the horn 31, and improve the directivity of high-frequency sound and reduce unnecessary reflections.

[0039] Furthermore, the throat of the high frequency driver 32 guides the sound waves into the horn 31, and the diameter of the throat is preferably 1 inch; the voice coil diameter of the high frequency driver 32 is 44 cores to generate a larger amplitude and sound pressure level.

[0040] Furthermore, the size of the low-frequency unit 4 ranges from 5 inches to 6 inches. The columnar speaker is designed to solve the problem of uniform sound coverage in the vertical direction and is often used in homes or indoors. 5 inches to 6 inches is approximately 16 cm to 20 cm. The low-frequency unit 4 of this size is installed in the box 1 for easy transportation. Secondly, the combination of columnar speakers and bass speakers is a common combination method at present, that is, the columnar speaker is fixed above the bass speaker. The size of the columnar speaker determines the difficulty of transportation. The box 1 corresponding to the 5-inch to 6-inch low-frequency unit 4 is easier to carry.

[0041] Furthermore, a handle 5 is provided on the back of the box body 1 near the bottom of the box body 1, so that the user can lift the columnar speaker and carry it to a corresponding position.

[0042] Furthermore, a left-right symmetrical guide hole 41 is provided between the two low-frequency units 4 of the same radiation module 2. When the speaker is working, when the diaphragm of the low-frequency unit 4 moves forward / backward, it pushes the air inside the box 1 to make the box 1 vibrate. The guide hole 41 allows the air inside the box 1 to exchange with the external air to form an auxiliary sound wave. This sound wave can offset a part of the reverse sound wave during the return stroke of the unit, thereby effectively extending the effective radiation length, enhancing the output efficiency of the low-frequency unit 4, and reducing the resonance of the box 1.

[0043] Furthermore, a diffusion plate 311 is provided at the front end of the horn 31, and the diffusion angle of the diffusion plate 311 is 110°-130°, which prevents sound concentration and avoids the formation of sound hotspots in certain areas, diffuses the sound level more evenly, and makes the high-frequency sound more natural and soft.

[0044] Furthermore, a back panel 6 connected to an external power line is provided on the back of the box 1, and a speaker system is constructed by connecting to a power source, receiving audio signals, and interconnecting with other audio devices through the back panel 6.

[0045] In addition, in this embodiment, a columnar sound box is provided, such as Figure 3As shown, there are three radiation modules 2, each of which includes a high-frequency unit 3 and two low-frequency units 4. The three horns 31 are respectively installed at the top, middle and bottom of the box 1, and two low-frequency units 4 are arranged under each horn 31; a horn 31 and the two low-frequency units 4 under the horn 31 constitute a radiation module 2. Furthermore, the top radiation module 2 performs far-field sound coverage to ensure that the audience in the distance can also hear the sound clearly; the middle radiation module 2 performs midfield sound coverage to ensure that the audience in the middle can hear the sound clearly; the bottom radiation module 2 performs near-field sound coverage to ensure that the audience in the near distance can hear the sound clearly; the three radiation modules 2 cooperate, and each radiation module 2 is responsible for the diffusion of sound at different distances, so that the sound pressure at far and near distances is uniform. Among them, the diffusion plate 311 at the front end of the horn 31 diffuses the sound waves horizontally, diffuses the high-frequency sound waves, and avoids the concentration of high-frequency sound. Three radiation modules 2 are provided to ensure uniform sound pressure, so that the volume of sound heard by audiences at far, middle and near distances is the same, thereby enhancing the audience's experience and solving the problem of unclear hearing at far or near distances in existing speakers.

[0046] Furthermore, in the present embodiment, in the same radiation module 2, the number of low-frequency units 4 matched with a high-frequency unit 3 is preferably two. If a high-frequency unit 3 is matched with more than two low-frequency units 4, the sound pressure ratio effect is reduced, and the columnar speaker is too high, which also reduces the convenience. In addition, a high-frequency unit 3 should be matched with no less than two low-frequency units 4 to avoid interference waves between the two high-frequency units 3. Otherwise, the interval between the two high-frequency units 3 will be too close, causing interference between the high-frequency sound waves.

[0047] 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, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A columnar speaker, characterized in that: The invention comprises a box (1), wherein the box (1) comprises at least two radiation modules (2); the plurality of radiation modules (2) are arranged vertically; The radiation module (2) comprises a high-frequency unit (3) and a low-frequency unit (4), and the high-frequency unit (3) and the low-frequency unit (4) are arranged in sequence from top to bottom; within the same radiation module (2), the high-frequency unit (3) is arranged above the low-frequency unit (4).

2. A columnar sound box according to claim 1, characterized in that: The high-frequency unit (3) comprises a horn (31) and a high-frequency driver (32) connected to the rear end of the horn (31).

3. A columnar sound box according to claim 1, characterized in that: The radiation module (2) comprises a high-frequency unit (3) and two low-frequency units (4).

4. A columnar sound box according to claim 1, characterized in that: The number of the radiation modules (2) is three.

5. The columnar sound box according to claim 2, characterized in that: The size of the low-frequency unit (4) ranges from 5 inches to 6 inches.

6. The columnar sound box according to claim 1, characterized in that: A horizontally symmetrical guide hole (41) is provided between two low-frequency units (4) of the same radiation module (2).

7. The columnar sound box according to claim 2, characterized in that: The throat diameter of the high-frequency driver (32) is 1 inch, and the voice coil diameter of the high-frequency driver is 44 cores.

8. The columnar sound box according to claim 2, characterized in that: A diffusion plate (311) is provided at the front end of the horn (31), and the diffusion angle of the diffusion plate is 110°-130°.

9. The columnar sound box according to claim 1, characterized in that: A handle (5) is provided on the back of the box body (1) near the bottom of the box body (1).

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