CN215871814U

CN215871814U - Sound box

Info

Publication number: CN215871814U
Application number: CN202121500953.6U
Authority: CN
Inventors: 叶绍勤; 吴忠林; 黄葛玲
Original assignee: Mianyang Erzan Acoustic Technology Co ltd
Current assignee: Mianyang Erzan Acoustic Technology Co ltd
Priority date: 2021-07-02
Filing date: 2021-07-02
Publication date: 2022-02-18
Anticipated expiration: 2031-07-02

Abstract

The utility model provides a sound box which comprises a shell, a circuit board, at least one loudspeaker and at least one special-shaped wave guide plate, wherein the circuit board, the loudspeaker and the special-shaped wave guide plate are arranged in the shell; the top surface of the special-shaped wave guide plate is opposite to the vibration surface of the loudspeaker, the top surface of the special-shaped wave guide plate comprises a metal net and a reflection cavity, and a reflection gap is formed between the metal net and the reflection cavity. According to the loudspeaker box, the top surface of the special-shaped wave guide plate is arranged opposite to the vibration surface of the loudspeaker, and the reflection gap is formed between the metal net and the reflection cavity, so that after the metal net conducts primary sound transmission and reflection, sound is transmitted to the reflection gap to conduct secondary reflection, the technical effect of sound secondary reflection is achieved, the sound is effectively diffused, the sound effect is improved, the loudspeaker box is not limited by a position scene, and the transmission range of the sound is wider.

Description

Sound box

Technical Field

The utility model relates to the technical field of electroacoustic equipment, in particular to a sound box.

Background

With the improvement of the life of citizens, personalized personal consumption entertainment products are more and more abundant. Various loudspeaker box devices are also successively introduced in recent years, and the use scenes of the products are more and more accepted by consumers.

Present product and technical scheme generally adopt the structure of speaker with reflecting the awl, and the purpose can be to scattering all around with the sound that the speaker sent, improves the third dimension that the audio amplifier sent sound, but these products ubiquitous audio amplifier sound production volume is little, the diffusion degree is not enough, sound surround feel poor, whole music stereovision is not abundant, sound is bright grade problem inadequately.

SUMMERY OF THE UTILITY MODEL

The utility model provides a sound box, which adopts the technical scheme that at least one special-shaped wave guide plate is arranged opposite to the vibration surface of at least one loudspeaker, the top surface of the special-shaped wave guide plate comprises a metal net and a reflection cavity, and a reflection gap is formed between the metal net and the reflection cavity, so that after the metal net is subjected to primary sound transmission and reflection, sound is transmitted to the reflection gap for secondary reflection, the technical effect of sound secondary reflection is realized, the sound is effectively diffused, the sound effect is improved, the sound field is free of dead angle and 360-degree coverage, is not limited by a position scene, and the transmission range is wider.

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

a sound box comprises a shell, a circuit board, at least one loudspeaker 2 and at least one special-shaped wave guide plate 3, wherein the circuit board, the loudspeaker 2 and the special-shaped wave guide plate 3 are arranged in the shell; the top surface 31 of the special-shaped wave guide plate 3 is arranged opposite to the vibration surface of the loudspeaker 2, the top surface 31 of the special-shaped wave guide plate 3 comprises a metal mesh 312 and a reflection cavity 311, and a reflection gap 313 is formed between the metal mesh 312 and the reflection cavity 311.

Preferably, the metal mesh 312 includes a mesh surface and a supporting portion, the metal mesh 312 is disposed in the reflective cavity 311 through the supporting portion, and the mesh surface and the bottom surface of the reflective cavity 311 form a reflective gap 313.

Preferably, the metal mesh 312 includes a mesh surface and a supporting portion, the metal mesh 312 is disposed outside the reflective cavity 311 through the supporting portion, and the mesh surface and the bottom surface of the reflective cavity 311 form a reflective gap 313.

Preferably, the wave guide plate 3 further comprises a side surface 33 and a bottom edge 34, the side surface 33 connects the top surface 31 and the bottom edge 34, and the side surface 33 is provided with the profile structure 32.

Preferably, the side surface 33 is an arc surface or a plane surface connecting the top surface 31 and the bottom edge 34.

Preferably, the edge of the bottom edge 34 is an outwardly and upwardly curved edge.

Preferably, one side of the profile structure 32 is connected to the side surface 33, and the profile structure 32 is vertically disposed on the side surface 33.

Preferably, the side surface 33 of the special-shaped wave guide plate 3 is further provided with a mounting hole 35.

Preferably, at least one diaphragm is provided on a side of the vibration surface remote from the speaker.

Through implementing above technical scheme, have following technological effect: according to the loudspeaker box, the top surface of the special-shaped wave guide plate is arranged opposite to the vibration surface of the loudspeaker, and the reflection gap is formed between the metal net and the reflection cavity, so that after the metal net conducts primary sound transmission and reflection, sound is transmitted to the reflection gap to conduct secondary reflection, the technical effect of sound secondary reflection is achieved, the sound is effectively diffused, the sound effect is improved, the loudspeaker box is not limited by a position scene, and the transmission range of the sound is wider.

Drawings

Fig. 1 is a schematic structural view (sectional view) of a sound box provided by the present invention;

FIG. 2 is a schematic structural diagram (exploded view) of the top surface of the special-shaped wave guide plate of the sound box provided by the present invention;

FIG. 3 is a schematic structural diagram of a top surface of a special-shaped wave guide plate of the sound box according to the present invention;

FIG. 4 is a schematic structural view of a special-shaped wave guide plate of the sound box according to the present invention;

fig. 5 is a schematic structural view (exploded view) of the sound box provided by the present invention.

Detailed Description

In order to better understand the technical scheme of the utility model, the following detailed description is made on the embodiments provided by the utility model in combination with the accompanying drawings.

A sound box comprises a shell, as shown in figure 1, a circuit board, at least one loudspeaker 2 and at least one special-shaped wave guide plate 3, wherein the shell comprises an upper shell 1 and a lower shell 4, the circuit board, the loudspeaker 2 and the special-shaped wave guide plate 3 are arranged in the shell, and the circuit board is in signal connection with the loudspeaker 2; the vibrating surface of the loudspeaker is arranged towards the lower shell 4, the lower shell 4 is provided with a sound outlet, the top surface 31 of the special-shaped wave guide plate 3 is arranged opposite to the vibrating surface of the loudspeaker 2, the top surface 31 of the special-shaped wave guide plate 3 comprises a metal net 312 and a reflecting cavity 311, and a reflecting gap 313 is formed between the metal net 312 and the reflecting cavity 311. The metal mesh with form the technical scheme in reflection clearance between the reflection chamber, realize that the metal mesh once passes through the sound and reflects the back, sound propagation carries out the secondary reflection to the reflection clearance, realizes the technical effect of sound secondary reflection, and is effectual to sound diffusion, improves the sound effect, does not receive the restriction of position scene, with the transmission range of sound wider. The sound box can also include that a woofer corresponds a dysmorphism guided wave board, and a tweeter corresponds a dysmorphism guided wave board, simultaneously dysmorphism guided wave board 3 is equivalent to setting up with speaker 2, and shared space is little, can set to the less sound box of whole volume, and the application scene is more extensive.

In addition to the above embodiments, in other embodiments, as shown in fig. 2 to 3, the metal mesh 312 includes a mesh surface and a supporting portion, the metal mesh 312 is disposed in the reflective cavity 311 through the supporting portion, and the mesh surface and the bottom surface of the reflective cavity 311 form a reflective gap 313. Or the metal mesh 312 comprises a mesh surface and a supporting portion, the metal mesh 312 is arranged outside the reflecting cavity 311 through the supporting portion, and the mesh surface and the bottom surface of the reflecting cavity 311 form a reflecting gap 313. Specifically, the upper mesh surface of the metal mesh is provided with a plurality of sound leakage holes, the whole area of the mesh surface is basically the same as that of the bottom surface of the reflection cavity, and the supporting part is a metal frame matched with the reflection cavity in shape, so that a reflection gap is formed between the metal mesh and the bottom surface of the reflection cavity. The sound that the speaker sent carries out once passing through sound and reflection back through the metal mesh, and sound propagation carries out the secondary reflection to the reflection clearance, realizes the technological effect of sound secondary reflection, and is effectual to sound diffusion, improves the sound effect, does not receive the restriction of position scene, and is wider with the transmission range of sound.

On the basis of the above embodiment, in other embodiments, furthermore, the special-shaped wave guide plate 3 further includes a side surface 33 and a bottom edge 34, the side surface 33 connects the top surface 31 and the bottom edge 34, and the side surface 33 is provided with the special-shaped structure 32. Preferably, the shaped structure 262 is a plate or an approximate plate, such as a triangular plate, a quadrangular plate or an arc plate, one side of the shaped structure 32 is connected with the side surface 33, and the shaped structure 32 is vertically arranged on the side surface 33. The side surface is divided into a plurality of sound channels by the special-shaped structure 32, and the sound of the loudspeaker is diffused to the periphery more orderly. In this embodiment, preferably, the side surface 33 is an arc surface or a plane connecting the top surface 31 and the bottom edge 34, and the side surface 33 further reflects and diffuses sound emitted from the speaker, and diffuses the sound to the periphery, so as to widen the transmission range of the sound. The edges of the bottom edge 34 are outwardly and upwardly curved edges to further diffuse the sound of the speaker outwardly. The side surface 33 and the bottom edge 34 further reflect and diffuse the sound emitted by the loudspeaker, and diffuse the sound to the periphery, so that the transmission range of the sound is wider. In this embodiment, it is preferable that the side 33 of the shaped wave guide plate 3 is further provided with a mounting hole 35, as shown in fig. 4-5, the bottom side of the shaped wave guide plate 3 forms a quadrangle, each corner of the quadrangle is provided with a mounting hole, and the shaped wave guide plate 3, the speaker and the housing are stably arranged in the housing by means of screw fixation. In this embodiment, it is preferable that at least one diaphragm is provided on a side surface away from the vibration surface of the speaker. For example, two vibrating plates, namely a left vibrating plate and a right vibrating plate, are arranged on the side face of the vibrating face far away from the loudspeaker, when the loudspeaker works, the air inside the sealed sound cavity of the loudspeaker is compressed, the left vibrating plate and the right vibrating plate can vibrate simultaneously due to pressure, and generated low-frequency sound is diffused out through the shell. Meanwhile, the left vibrating plate and the right vibrating plate can be designed to the maximum, the low-frequency submergence can reach about 60Hz, and the multiplication rule of the vibrating area of the loudspeaker is satisfied, so that the low-frequency performance is more plump.

While the sound box provided by the embodiment of the present invention has been described in detail, for a person skilled in the art, according to the idea of the embodiment of the present invention, the specific implementation and the application scope may be changed, and in summary, the content of the present description should not be construed as limiting the present invention.

Claims

1. A sound box is characterized by comprising a shell, a circuit board, at least one loudspeaker (2) and at least one special-shaped wave guide plate (3), wherein the circuit board, the loudspeaker (2) and the special-shaped wave guide plate (3) are arranged in the shell, and the loudspeaker (2) is in signal connection with the circuit board; the top surface (31) of the special-shaped wave guide plate (3) is opposite to the vibration surface of the loudspeaker (2), the top surface (31) of the special-shaped wave guide plate (3) comprises a metal net (312) and a reflection cavity (311), and a reflection gap (313) is formed between the metal net (312) and the reflection cavity (311).

2. An acoustic enclosure according to claim 1, wherein the metal mesh (312) comprises a mesh surface and a support portion by which the metal mesh (312) is arranged within the reflective cavity (311), the mesh surface and a bottom surface of the reflective cavity (311) forming a reflective gap (313).

3. An acoustic enclosure according to claim 1, wherein the metal mesh (312) comprises a mesh surface and a support portion, the metal mesh (312) being arranged outside the reflective cavity (311) by the support portion, the mesh surface and a bottom surface of the reflective cavity (311) forming a reflective gap (313).

4. An enclosure according to claim 1, characterized in that the shaped wave guide plate (3) further comprises a side surface (33) and a bottom edge (34), the side surface (33) connecting the top surface (31) and the bottom edge (34), the side surface (33) being provided with a shaped structure (32).

5. An enclosure as claimed in claim 4, characterized in that said lateral surface (33) is an arc or plane connecting said top surface (31) and said bottom edge (34).

6. An acoustic enclosure according to claim 4, wherein the edge of the bottom edge (34) is an outwardly and upwardly curved edge.

7. An enclosure as claimed in claim 4, characterized in that one side of the profiled structure (32) is connected to the side (33), the profiled structure (32) being arranged vertically on the side (33).

8. An enclosure according to claim 1, characterised in that the side (33) of the shaped wave guide plate (3) is further provided with mounting holes (35).

9. An acoustic enclosure according to claim 1, wherein at least one diaphragm is provided on a side of the vibrating surface remote from the loudspeaker.