CN209823988U

CN209823988U - Sound box

Info

Publication number: CN209823988U
Application number: CN201920996408.7U
Authority: CN
Inventors: 胡江
Original assignee: SHENZHEN GUOWEI ELECTRONIC CO Ltd
Current assignee: SHENZHEN GUOWEI ELECTRONIC CO Ltd
Priority date: 2019-06-28
Filing date: 2019-06-28
Publication date: 2019-12-20
Anticipated expiration: 2029-06-28

Abstract

The utility model provides a sound box, a bass guide pipe is added to the sound box, the bass guide pipe is matched with a resonance cavity, the range can be greatly improved, and the sound is not easy to distort; and because the loudspeaker box comprises a bent shell, a front shell, a rear shell and a bottom shell, the bent shell is fixedly connected with the rear shell, the front shell is clamped between the bent shell and the rear shell, meanwhile, the bent shell is buckled with the bottom shell to accommodate the front shell and the rear shell, and the loudspeaker box body is not easy to shake through the fixed connection of the rear shell and the bent shell.

Description

Sound box

Technical Field

The utility model belongs to the technical field of audio equipment and audio amplifier and specifically relates to a sound box.

Background

At present, the loudspeaker box is mostly designed into a simple closed cavity, the low-frequency loss is large due to the design, so that low bass is easy to cause, echo and noise occur, and the distortion of sound is large.

In the prior art, the shell in the loudspeaker box body is not connected with the external shell, after the loudspeaker box body is installed, the external shell is buckled to accommodate the loudspeaker box body, and if the loudspeaker box body is not clamped by the external shell, the whole loudspeaker box body is not fixed, so that the loudspeaker box body is easy to shake.

SUMMERY OF THE UTILITY MODEL

In order to solve the above problem, the utility model provides a sound box.

The utility model discloses a following technical scheme realizes:

the utility model provides an audio amplifier, the audio amplifier includes the audio amplifier body, the audio amplifier body include first circuit board and with the loudspeaker box body that the circuit board electricity is connected, the loudspeaker box body includes bass pipe, procapsid and back casing.

The loudspeaker box body comprises a bent shell and a bottom shell, the front shell is located between the bent shell and the rear shell, the bent shell is fixedly connected with the rear shell to fix the front shell, and meanwhile the bent shell is connected with the bottom shell in a buckled mode to accommodate the front shell and the rear shell.

Further, the procapsid is equipped with first hole, the procapsid with the back casing is connected and is formed the resonance chamber, the bass pipe includes first open end and second open end, first open end is located in the first hole and communicates with each other with the external world, the second open end is established in the resonance chamber.

Further, the curved case is a ">" shaped panel and the bass duct is a "C" shaped hollow tube.

Further, the loudspeaker box body comprises a loudspeaker, the front shell is provided with a second hole, and the loudspeaker is fixed below the second hole and accommodated in the resonance cavity.

Further, the bent shell comprises an installation cylinder, the rear shell comprises a hollow cylinder and a fastener, and the installation cylinder is inserted into the hollow cylinder and then locked through the fastener.

Furthermore, the bent shell is provided with a plurality of clamping pieces, the bottom shell comprises a plurality of clamping pieces, and the bent shell is fixedly connected with the rear shell and then clamped into the clamping pieces, so that the bent shell is buckled with the bottom shell.

Furthermore, the sound box body comprises a speaker cloth net, and the speaker cloth net is sleeved on the bent shell.

Furthermore, the rear shell comprises a connecting sheet and a second circuit board, the connecting sheet is electrically connected with the second circuit board, the second circuit board is electrically connected with the first circuit board, and the second circuit board is L-shaped.

Further, the loudspeaker box body comprises a partition plate, and the second circuit board is clamped at the bottom of the rear shell by the partition plate.

Further, the sound box body comprises a base, the bottom shell comprises an accommodating cavity, and the accommodating cavity accommodates the base.

Further, the bending shell is provided with a horn hole, a bass hole and a plurality of heat dissipation holes, and the plurality of heat dissipation holes are arranged in a circular shape.

The utility model has the advantages that: the utility model adds the bass guide pipe, which is matched with the resonance cavity, to improve the range greatly, reduce the propagation path of the echo, weaken the energy of the echo, and make the sound not easy to distort; and because the loudspeaker box comprises a bent shell, a front shell, a rear shell and a bottom shell, the bent shell is fixedly connected with the rear shell, the front shell is clamped between the bent shell and the rear shell, meanwhile, the bent shell is buckled with the bottom shell to accommodate the front shell and the rear shell, and the loudspeaker box body is not easy to shake through the fixed connection of the rear shell and the bent shell.

Drawings

Fig. 1 is an exploded view of the sound box;

FIG. 2 is an exploded view of the speaker at another view angle;

FIG. 3 is an enlarged view of the structure at A in FIG. 2;

FIG. 4 is a schematic view of a partially exploded structure of the speaker;

fig. 5 is a schematic perspective view of the sound box.

Detailed Description

For a more clear and complete description of the technical solution of the present invention, the following description is made with reference to the accompanying drawings.

Referring to fig. 1-5, the present invention provides a sound box, the sound box includes a sound box body 1, the sound box body 1 includes a first circuit board 11 and a speaker box body 2 electrically connected to the circuit board, the speaker box body 2 includes a bass duct 21, a front case 23 and a rear case 24.

The sound box body 1 includes a curved casing 12 and a bottom casing 13, the curved casing 12 is a ">" shaped panel, the front casing 23 is located between the curved casing 12 and the rear casing 24, the curved casing 12 is fixedly connected with the rear casing 24 to fix the front casing 23, and meanwhile, the curved casing 12 is snap-connected with the bottom casing 13 to accommodate the front casing 23 and the rear casing 24.

The bending shell 12 includes a mounting cylinder 123, the rear housing 24 includes a hollow cylinder 240 and a fastening member 241, and the mounting cylinder 123 is inserted into the hollow cylinder 240 and then locked by the fastening member 241.

In this embodiment, the installation cylinder 123 is inserted through behind the hollow cylinder 240 the fastening piece 241 is locked, the bent shell 12 with back casing 24 fixed connection, the front shell 23 is pressed from both sides and is established the bent shell 12 with between the back casing 24, the bent shell 12 again with the bottom shell 13 lock is connected, the bent shell 12 with the bottom shell 13 lock forms the holding chamber 14, the holding chamber 14 is acceptd the front shell 23 with back casing 24, the loudspeaker box 2 is whole through with bent shell 12 fixed connection, thereby makes the loudspeaker box 2 accept to be difficult for producing in the holding chamber 14 and rock.

Further, the front housing 23 is provided with a first hole 230, the front housing 23 is connected with the rear housing 24 to form a resonance chamber 22, the bass duct 21 includes a first open end 210 and a second open end 211, the first open end 210 is disposed in the first hole 230 and communicates with the outside, and the second open end 211 is disposed in the resonance chamber 22.

Further, the bass duct 21 is a hollow tube in a "C" shape. The horn housing 2 includes a horn 20, the front housing 23 is provided with a second hole 231, and the horn 20 is fixed under the second hole 231 and accommodated in the resonance cavity 22.

In this embodiment, the first open end 210 of the bass duct 21 is located at the upper end of the horn 20, the second open end 211 is located at the lower end of the horn 20, and the whole bass duct 21 surrounds the horn 20 to form a "C" shaped structure.

Because the loudspeaker box is added with a bass duct 21 which is connected with the air inside and outside the loudspeaker box body 2, one end of the bass duct 21 is communicated with the air inside the loudspeaker box body 2, and the other end of the bass duct is communicated with the air outside the loudspeaker box body 2. When the horn 20 of the horn housing 2 is operated, on one hand, the sound waves are directly emitted outwards, and on the other hand, the air in the horn housing 2 is compressed (or expanded). The air in the speaker box body 2 is rapidly exchanged with other air outside the speaker box body 2 through the bass guide pipe 21 so as to reduce an echo propagation path and weaken the echo energy, and the sound which is transmitted from the speaker 20 and processed by the bass guide pipe 21 is not easy to distort.

Further, the curved shell 12 is provided with a plurality of fasteners 124, the bottom shell 13 includes a plurality of fasteners 130, and after the curved shell 12 is fixedly connected to the rear shell 24, the fasteners 124 are fastened into the fasteners 130, so that the curved shell 12 is fastened to the bottom shell 13.

Further, the sound box body 1 comprises a speaker cloth net 10, and the speaker cloth net 10 is sleeved on the bending shell 12.

Further, the rear housing 24 includes a connecting sheet 244 and a second circuit board 245, the connecting sheet 244 is electrically connected to the second circuit board 245, the second circuit board 245 is electrically connected to the first circuit board 11, and the second circuit board 245 is "L" shaped. The connection pad 244 is provided in a cross-shaped configuration for electrical connection with a transducer or frequency divider mounted in the front housing 23.

Further, the speaker box 2 includes a partition plate 242, and the second circuit board 245 is sandwiched by the partition plate 242 at the bottom of the rear housing 24.

Referring to fig. 4, the sound box body 1 includes a base 243, the bottom case 13 includes a receiving cavity 131, and the receiving cavity 131 receives the base 243.

In this embodiment, the base 243 is received in the receiving cavity 131 and is fixedly mounted on the bottom of the bottom case 13 by a fastener 241. The base 243 is designed to increase friction and prevent slipping. The fastening member 241 is a screw.

Further, the curved housing 12 is opened with a speaker 20 hole 120, a bass hole 121 and a plurality of heat dissipation holes 122, and the plurality of heat dissipation holes 122 are arranged in a circle.

In the present embodiment, the horn 20 hole 120 has a spider-web structure.

Of course, the present invention can also have other various embodiments, and based on the embodiments, those skilled in the art can obtain other embodiments without any creative work, and all of them belong to the protection scope of the present invention.

Claims

1. A sound box is characterized by comprising a sound box body, wherein the sound box body comprises a first circuit board and a loudspeaker box body electrically connected with the circuit board, and the loudspeaker box body comprises a bass guide pipe, a front shell and a rear shell;

the loudspeaker box body comprises a bent shell and a bottom shell, the front shell is positioned between the bent shell and the rear shell, the bent shell is fixedly connected with the rear shell to fix the front shell, and meanwhile, the bent shell is buckled and connected with the bottom shell to accommodate the front shell and the rear shell;

the procapsid is equipped with first hole, the procapsid with back casing is connected and is formed the resonance chamber, the bass pipe includes first open end and second open end, first open end is located in the first hole and communicate with each other with the external world, the second open end is located in the resonance chamber.

2. An acoustic enclosure according to claim 1, in which the curved enclosure is a ">" shaped panel and the bass duct is a "C" shaped hollow tube.

3. The acoustic enclosure of claim 1, wherein the speaker box includes a speaker, the front housing defines a second aperture, and the speaker is secured beneath the second aperture and received within the resonant cavity.

4. The acoustic enclosure of claim 1, wherein the curved housing includes a mounting cylinder, the rear housing includes a hollow cylinder and a fastener, and the mounting cylinder is inserted into the hollow cylinder and locked by the fastener.

5. The sound box according to claim 4, wherein the curved shell is provided with a plurality of fasteners, the bottom shell comprises a plurality of fasteners, and after the curved shell is fixedly connected with the rear shell, the fasteners are fastened into the fasteners, so that the curved shell is fastened with the bottom shell.

6. The sound box according to claim 1, wherein the sound box body comprises a speaker cloth mesh, and the speaker cloth mesh is sleeved on the curved shell.

7. The acoustic enclosure of claim 1, wherein the rear housing includes a connection pad and a second circuit board, the connection pad being electrically connected to the second circuit board, the second circuit board being electrically connected to the first circuit board, the second circuit board being "L" shaped.

8. The acoustic enclosure of claim 7, wherein the speaker box includes a partition plate, and the second circuit board is sandwiched by the partition plate at a bottom of the rear housing.

9. The sound box according to claim 1, wherein the sound box body comprises a base, and the bottom case comprises a receiving cavity, and the receiving cavity receives the base.

10. The acoustic enclosure of claim 1, wherein the curved enclosure defines a speaker hole, a bass hole, and a plurality of louvers arranged in a circular pattern.