CN212969978U

CN212969978U - Sound box

Info

Publication number: CN212969978U
Application number: CN202021790010.7U
Authority: CN
Inventors: 周小三
Original assignee: Shenzhen Fenda Technology Co Ltd
Current assignee: Shenzhen Fenda Technology Co Ltd
Priority date: 2020-08-24
Filing date: 2020-08-24
Publication date: 2021-04-13
Anticipated expiration: 2030-08-24

Abstract

The utility model is suitable for a sound equipment field discloses a sound box, including the box that has the audio amplifier cavity, install in the audio amplifier cavity and expose to the speaker subassembly outside the box, and install the power amplifier terminal box at the box, the power amplifier terminal box includes the casing of installing in the audio amplifier cavity and being connected with the box, the casing separates the audio amplifier cavity into first cavity and the second cavity that mutually independent is sealed, the speaker subassembly includes the first speaker of installing in first cavity and the second speaker of installing in the second cavity; this audio amplifier separates into two independent cavitys that mutually independent is sealed with the audio amplifier cavity through setting up the power amplifier terminal box, need not to set up two acoustic celotex boards again at the box, consequently, the audio amplifier of design like this can reduce the manufacturing degree of difficulty and manufacturing cost.

Description

Sound box

Technical Field

The utility model relates to a sound equipment technical field especially relates to a sound box.

Background

The structure of the existing sound box product in the market adopts two sound insulation boards added inside the cavity of the sound box to separate the left sound channel from the right sound channel to form a left independent cavity and a right independent cavity, and the method has two problems, namely high material cost, large manufacturing and processing difficulty and high manufacturing cost.

Therefore, it is necessary to provide a new sound box to solve the above technical problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an audio amplifier, it directly utilizes power amplifier terminal box separately to form two independent cavitys with the audio amplifier cavity, has reduced the manufacturing degree of difficulty and manufacturing cost.

In order to achieve the above purpose, the utility model provides a scheme is:

the loudspeaker box comprises a box body with a loudspeaker box cavity, a loudspeaker component and a power amplifier junction box, wherein the loudspeaker box cavity is internally provided with the loudspeaker component and is installed outside the box body, the power amplifier junction box comprises a shell which is installed in the loudspeaker box cavity and connected with the box body, the shell is used for separating the loudspeaker box cavity into a first cavity and a second cavity which are mutually independent and sealed, and the loudspeaker component comprises a first loudspeaker and a second loudspeaker which are installed in the first cavity and a second loudspeaker which is installed in the second cavity.

As an improvement, the casing is including installing the bottom plate of box one side, installing the box another side and with the apron that the bottom plate interval set up and all certainly the apron orientation first curb plate and the second curb plate that the bottom plate extends, first curb plate with the second curb plate interval sets up, the apron with the connection can be dismantled to the bottom plate, first curb plate with the box is sealed to form first cavity, the second curb plate with the box is sealed to form the second cavity.

As an improved mode, the bottom plate is provided with a first connecting column, the first connecting column is provided with a mounting hole, the cover plate is provided with a second connecting column corresponding to the first connecting column, the second connecting column is provided with a threaded hole, a screw is arranged in the threaded hole, and the screw penetrates through the mounting hole to be in threaded fit with the threaded hole.

As an improvement mode, the power amplifier terminal box further comprises one end connected with the first side plate, the other end connected with the circuit board of the second side plate, the circuit board is provided with a power amplifier circuit, the first loudspeaker and the second loudspeaker are connected with the power amplifier circuit, the cover plate is sunken to form an installation part, the installation part is provided with a wiring terminal, one end of the wiring terminal is connected with the circuit board, and the other end of the wiring terminal protrudes out of the installation part.

As an improvement mode, a lamp body is arranged on one side of the circuit board, which is far away from the cover plate, a hollow light guide column is arranged between the bottom plate and the circuit board, one end of the hollow light guide column covers the lamp body, and the other end of the hollow light guide column is communicated with the outside.

As an improved mode, a key connected with the circuit board is arranged on one side, away from the bottom plate, of the cover plate.

As an improvement mode, the box body comprises a bottom wall, an enclosing wall extending from the bottom wall, a first side wall and a second side wall spaced from and arranged in parallel with the first side wall, the bottom wall, the first side wall, the enclosing wall and the shell are enclosed to form a first cavity, the bottom wall, the second side wall, the enclosing wall and the shell are enclosed to form a second cavity, the first loudspeaker and the second loudspeaker are both installed on the bottom wall, an installation groove is formed in one side, away from the bottom wall, of the enclosing wall, and the power amplifier junction box is embedded into the installation groove.

As an improvement, the box body further comprises a gauze arranged on one side of the bottom wall far away from the surrounding wall, and the gauze covers the bottom wall.

As an improvement, one side of the surrounding wall close to the bottom wall, one side of the first side wall close to the bottom wall, and one side of the second side wall close to the bottom wall all protrude out of the bottom wall and surround to form a cavity, and the gauze is installed and embedded into the cavity.

As an improved mode, the sound box further includes a first phase inversion tube disposed in the first cavity and connected to the box, and a second phase inversion tube disposed in the second cavity and connected to the box, one end of the first phase inversion tube is communicated with the outside, the other end of the first phase inversion tube is communicated with the first cavity, one end of the first phase inversion tube communicated with the first cavity faces the first speaker, one end of the second phase inversion tube is communicated with the outside, the other end of the second phase inversion tube is communicated with the first cavity, and one end of the second phase inversion tube communicated with the second cavity faces the second speaker.

The utility model provides a two independent cavitys that mutually independent is sealed are separated into to the audio amplifier cavity through setting up the power amplifier terminal box to the audio amplifier, need not to set up two acoustic celotex boards again at the box, consequently, the audio amplifier of design like this can reduce and make the degree of difficulty and manufacturing cost.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a sound box provided in an embodiment of the present invention;

fig. 2 is a cross-sectional view taken along line a-a of fig. 1 (power amplifier junction box not cut);

fig. 3 is an exploded view of a sound box according to an embodiment of the present invention;

fig. 4 is an exploded view of a case provided by an embodiment of the present invention;

fig. 5 is an exploded view of the case provided by the embodiment of the present invention in another direction;

fig. 6 is a schematic structural diagram of a power amplifier junction box provided in an embodiment of the present invention;

fig. 7 is a partial structure diagram of a power amplifier junction box provided in the embodiment of the present invention;

fig. 8 is another structural diagram of a power amplifier junction box according to an embodiment of the present invention.

The reference numbers illustrate:

1. a sound box;

10. a box body; 11. a sound box cavity; 111. a first cavity; 112. a second cavity; 12. a bottom wall; 13. A surrounding wall; 131. mounting grooves; 14. a first side wall; 15. a second side wall; 16. a concave cavity;

20. a speaker assembly; 21. a first speaker; 22. a second speaker;

30. a power amplifier junction box; 31. a housing; 311. a base plate; 3111. a first connecting column; 3112. mounting holes; 312. a cover plate; 3121. a second connecting column; 3123. an installation part; 313. a first side plate; 314. a second side plate; 32. a screw; 33. a circuit board; 34. a wiring terminal; 35. a lamp body; 36. a hollow light guide pillar; 37. Pressing a key;

40. a screen;

50. a first inverter tube;

60. and a second inverter tube.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.

It will also be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.

In addition, the descriptions related to "first", "second", etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit ly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

Referring to fig. 1-8, the embodiment of the present invention provides an audio amplifier 1 including a box body 10 having an audio cavity 11, a speaker assembly 20 installed in the audio cavity 11 and exposed outside the box body 10, and a power amplifier junction box 30 installed in the box body 10, the power amplifier junction box 30 includes a housing 31 installed in the audio cavity 11 and connected to the box body 10, the housing 31 separates the audio cavity 11 into a first cavity 111 and a second cavity 112 that are independent of each other and sealed, the speaker assembly 20 includes a first speaker 21 installed in the first cavity 111 and a second speaker 22 installed in the second cavity 112, under the condition of power-on, the first speaker 21 is used for converting audio power into corresponding sound energy, and the second speaker 22 is also used for converting audio power into corresponding sound energy.

The sound box 1 of the embodiment separates the sound box cavity 11 into two independent cavities which are mutually independent and sealed by arranging the power amplifier junction box 30, and two sound insulation boards do not need to be arranged on the box body 10, so that the design of the sound box 1 can reduce the manufacturing difficulty and the manufacturing cost.

In the present embodiment, two first speakers 21 are provided, and two second speakers 22 are also provided, and it is understood that the number of the first speakers 21 is not limited to two, and may be one, three or more, and similarly, the number of the second speakers 22 is not limited to two, and may be one, three or more.

Referring to fig. 1-5, the box body 10 includes a bottom wall 12, a surrounding wall 13 extending from the bottom wall 12, a first side wall 14, and a second side wall 15 spaced from and parallel to the first side wall 14, the bottom wall 12, the first side wall 14, the surrounding wall 13 and the housing 31 enclose to form a first cavity 111, the bottom wall 12, the second side wall 15, the surrounding wall 13 and the housing 31 enclose to form a second cavity 112, the first speaker 21 and the second speaker 22 are both installed on the bottom wall 12, an installation groove 131 is opened on one side of the surrounding wall 13 away from the bottom wall 12, the power amplifier junction box 30 is embedded in the installation groove 131, and the structure of the box body 10 is reasonably arranged so as to install the speaker assembly 20 and the power amplifier junction box 30.

Referring to fig. 1 to 8, the housing 31 includes a bottom plate 311, a cover plate 312 spaced from the bottom plate 311, and a first side plate 313 and a second side plate 314 both extending from the cover plate 312 toward the bottom plate 311, the first side plate 313 and the second side plate 314 being spaced apart, the bottom plate 311 being installed on the side of the bottom wall 12 of the box 10 away from the peripheral wall 13, the cover plate 312 being installed on the side of the peripheral wall 13 away from the bottom wall 12, and extends to the mounting groove 131, the cover plate 312 is detachably connected with the bottom plate 311, the first side plate 313 is sealed with the box body 10 to form a first cavity 111, the second side plate 314 is sealed with the box body 10 to form a second cavity 112, by reasonably arranging the structure of the power amplifier junction box 30, therefore, the first side plate 313 and the second side plate 314 of the power amplifier junction box 30 can be directly used for replacing the original two sound insulation plates, the sound box cavity 11 can be separated to form two independent cavities, and the manufacturing difficulty and the manufacturing cost are reduced. And the cover plate 312 is detachably connected with the bottom plate 311, so that the assembly and disassembly are convenient.

Optionally, the cover plate 312, the first side plate 313 and the second side plate 314 are integrally formed, so that the assembly process can be reduced, the assembly efficiency can be improved, and the first cavity 111 and the second cavity 112 formed by the housing 31 and the box 10 have better sealing performance.

Referring to fig. 1-8, the bottom plate 311 is provided with a first connecting column 3111, the first connecting column 3111 has been seted up with mounting hole 3112, the cover plate 312 is provided with a second connecting column 3121 that corresponds with first connecting column 3111, the second connecting column 3121 is provided with a screw hole (not shown), be provided with screw 32 in the screw hole, screw 32 passes mounting hole 3112 and screw hole screw-thread fit, bottom plate 311 and cover plate 312 pass through screw 32 and connect, it is convenient to dismantle, and through set up first connecting column 3111 at the bottom plate 311 and set up second connecting column 3121 at the cover plate 312, hide screw 32 inside the terminal box, the connected mode is reliable.

Referring to fig. 1 to 8, the power amplifier junction box 30 further includes a circuit board 33 having one end connected to the first side plate 313 and the other end connected to the second side plate 314, the circuit board 33 is provided with a power amplifier circuit, the first speaker 21 and the second speaker 22 are both connected to the power amplifier circuit, the cover plate 312 is recessed to form a mounting portion 3123, the mounting portion 3123 is provided with a connection terminal 34, one end of the connection terminal 34 is connected to the circuit board 33, and the other end protrudes from the mounting portion 3123.

Further, a side of the cover 312 remote from the bottom plate 311 is provided with a key 37 connected to the circuit board 33.

Referring to fig. 1-8, a lamp body 35 is disposed on a side of the circuit board 33 away from the cover plate 312, a hollow light guide pillar 36 is disposed between the bottom plate 311 and the circuit board 33, one end of the hollow light guide pillar 36 covers the lamp body 35, and the other end is communicated with the outside, so that light is guided by the hollow light guide pillar 36, and the design is ingenious.

Referring to fig. 1-5, the cabinet 10 further includes a screen 40 disposed on a side of the bottom wall 12 away from the enclosure wall 13, the screen 40 covers the bottom wall 12, and the screen 40 is designed to reduce impurities such as dust from entering the cabinet 10, thereby improving the service life of the speaker 1.

Furthermore, one side of the surrounding wall 13 close to the bottom wall 12, one side of the first side wall 14 close to the bottom wall 12 and one side of the second side wall 15 close to the bottom wall 12 all protrude out of the bottom wall 12 and enclose to form a cavity 16, and the gauze 40 is installed in the cavity 16 in a simple and reliable manner.

Referring to fig. 1 to 5, the sound box 1 further includes a first inverter tube 50 disposed in the first cavity 111 and connected to the bottom wall 12 of the box 10, and a second inverter tube 60 disposed in the second cavity 112 and connected to the bottom wall 12 of the box 10, wherein one end of the first inverter tube 50 is connected to the outside, the other end is connected to the first cavity 111, one end of the first inverter tube 50 connected to the first cavity 111 faces the first speaker 21, one end of the second inverter tube 60 is connected to the outside, the other end is connected to the first cavity 111, and one end of the second inverter tube 60 connected to the second cavity 112 faces the second speaker 22, the sound box 1 of the present embodiment utilizes the vibration behind the first speaker 21 by disposing the first inverter tube 50, and utilizes the vibration behind the second speaker 22 by disposing the second inverter tube 60, thereby improving the sound quality of the sound box 1.

The above only be the preferred embodiment of the utility model discloses a not consequently restriction the utility model discloses a patent range, all are in the utility model discloses a conceive, utilize the equivalent structure transform of what the content was done in the description and the attached drawing, or direct/indirect application all is included in other relevant technical field the utility model discloses a patent protection within range.

Claims

1. The loudspeaker box is characterized by comprising a box body with a loudspeaker box cavity, a loudspeaker component arranged in the loudspeaker box cavity and exposed outside the box body, and a power amplifier junction box arranged on the box body, wherein the power amplifier junction box comprises a shell arranged in the loudspeaker box cavity and connected with the box body, the shell is used for separating the loudspeaker box cavity into a first cavity and a second cavity which are mutually independent and sealed, and the loudspeaker component comprises a first loudspeaker arranged in the first cavity and a second loudspeaker arranged in the second cavity.

2. The acoustic enclosure according to claim 1, wherein the enclosure comprises a bottom plate mounted on one side of the enclosure, a cover plate mounted on the other side of the enclosure and spaced from the bottom plate, and a first side plate and a second side plate both extending from the cover plate toward the bottom plate, the first side plate and the second side plate being spaced from each other, the cover plate being detachably connected to the bottom plate, the first side plate being sealed with the enclosure to form the first cavity, and the second side plate being sealed with the enclosure to form the second cavity.

3. The sound box according to claim 2, wherein the bottom plate is provided with a first connecting post, the first connecting post is provided with a mounting hole, the cover plate is provided with a second connecting post corresponding to the first connecting post, the second connecting post is provided with a threaded hole, a screw is arranged in the threaded hole, and the screw passes through the mounting hole and is in threaded fit with the threaded hole.

4. The sound box according to claim 2, wherein the power amplifier junction box further comprises a circuit board having one end connected to the first side plate and the other end connected to the second side plate, the circuit board is provided with a power amplifier circuit, the first speaker and the second speaker are both connected to the power amplifier circuit, the cover plate is recessed to form an installation portion, the installation portion is provided with a connection terminal, one end of the connection terminal is connected to the circuit board, and the other end of the connection terminal protrudes from the installation portion.

5. The sound box according to claim 4, wherein a lamp body is disposed on a side of the circuit board away from the cover plate, a hollow light guide pillar is disposed between the bottom plate and the circuit board, one end of the hollow light guide pillar covers the lamp body, and the other end of the hollow light guide pillar is in communication with the outside.

6. An acoustic enclosure as claimed in claim 4, in which the side of the cover remote from the base is provided with a key for connection to the circuit board.

7. The sound box according to claim 1, wherein the box body comprises a bottom wall, an enclosure wall extending from the bottom wall, a first side wall, and a second side wall spaced from and parallel to the first side wall, the bottom wall, the first side wall, the enclosure wall and the housing enclose to form the first cavity, the bottom wall, the second side wall, the enclosure wall and the housing enclose to form the second cavity, the first speaker and the second speaker are all installed on the bottom wall, an installation groove is formed on one side of the enclosure wall away from the bottom wall, and the power amplifier junction box is embedded in the installation groove.

8. The acoustic enclosure of claim 7, wherein the enclosure further comprises a screen disposed on a side of the bottom wall remote from the enclosure wall, the screen covering the bottom wall.

9. The acoustic enclosure of claim 8, wherein a side of the enclosure wall adjacent the bottom wall, a side of the first side wall adjacent the bottom wall, and a side of the second side wall adjacent the bottom wall each protrude from the bottom wall and enclose a cavity into which the screen is mounted.

10. The acoustic enclosure according to claim 1, further comprising a first inverter tube disposed in the first chamber and connected to the enclosure, and a second inverter tube disposed in the second chamber and connected to the enclosure, wherein one end of the first inverter tube communicates with the outside, the other end communicates with the first chamber, and one end of the first inverter tube communicating with the first chamber faces the first speaker, one end of the second inverter tube communicates with the outside, the other end communicates with the first chamber, and one end of the second inverter tube communicating with the second chamber faces the second speaker.