CN220173372U

CN220173372U - Portable sound box

Info

Publication number: CN220173372U
Application number: CN202321657765.3U
Authority: CN
Inventors: 徐新国; 胡荣华; 肖叶文; 马明虎
Original assignee: Fdb Audio Manufacture Co ltd
Current assignee: Guangdong Aigaoyin Video Technology Co ltd
Priority date: 2023-06-27
Filing date: 2023-06-27
Publication date: 2023-12-12
Anticipated expiration: 2033-06-27

Abstract

The utility model relates to a portable loudspeaker, comprising: the box body comprises a box body, a clarion connected to the inside of one end of the box body, a bracket arranged in the clarion, and a sound amplifying column protruding outwards from the middle part of the inner wall of the clarion; the inner wall of the horn is arranged in a parabolic shape; the bracket is arranged in a hollow round table shape, and the sound amplifying column is inserted in the middle of the bracket; a speaker driver installed in one end of the cabinet; the loudspeaker driver is connected to one end of the bracket, which is opposite to the sound amplifying column, and is positioned in the horn; the sound outlet of the loudspeaker driver faces the bracket, and the sound outlet of the loudspeaker driver corresponds to the middle part of the bracket. Above-mentioned portable audio amplifier, simple structure, convenient to use, with speaker driver reverse, the sound wave that speaker driver sent outwards propagates after the reflection of horn inside, makes the sound wave become parallel, directional specific region, helps improving the coverage and the definition of sound.

Description

Portable sound box

Technical Field

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

Background

Portable speakers are audio devices used by individuals or small teams, which may be battery powered or may be connected to an external power source via a power cord. The loudspeaker box has the characteristics of small size, portability and easy carrying, and is suitable for occasions such as outdoor activities, traveling, indoor parties and the like.

At present, in a portable sound box commonly found in the market, when a loudspeaker vibrates, the portable sound box generates compressed and sparse alternate sound waves, and the sound waves are scattered to the periphery along the emitting direction, so that the sound becomes fuzzy and loses directivity, and the coverage range of the expected directivity and sound effect space is often not achieved.

Disclosure of Invention

Based on the above, the portable sound box provided by the utility model has the advantages that the structure is simple, the use is convenient, the loudspeaker driver is reversely arranged, sound waves emitted by the loudspeaker driver are outwards transmitted after being reflected by the inside of the horn, the sound waves become parallel and are directed to a specific area, and the coverage area of the sound and the definition of the sound are improved.

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

a portable sound box comprising:

the box body comprises a box body, a clarion connected to the inside of one end of the box body, a bracket arranged in the clarion, and a sound amplifying column protruding outwards from the middle part of the inner wall of the clarion; the inner wall of the clarion is arranged in a parabolic shape; the support is arranged in a hollow round table shape, and the sound amplifying column is inserted in the middle of the support; a kind of electronic device with high-pressure air-conditioning system

A speaker driver installed in one end of the cabinet; the loudspeaker driver is connected to one end of the bracket, which is opposite to the sound amplifying column, and is positioned in the horn; the sound outlet of the loudspeaker driver faces the bracket, and the sound outlet of the loudspeaker driver corresponds to the middle part of the bracket.

Above-mentioned portable audio amplifier, simple structure, convenient to use, with speaker driver reverse, the sound wave that speaker driver sent outwards propagates after the reflection of horn inside, makes the sound wave become parallel, directional specific region, helps improving the coverage and the definition of sound.

In one embodiment, a first gap is formed between the inner wall of the bracket and the outer surface of the sound amplifying column, a second gap is formed between the outer wall of the bracket and the inner wall of the horn, and the first gap and the second gap are combined to form a sound outlet channel.

In one embodiment, the horn is arranged in a funnel shape with a wide outer part and a narrow inner part.

In one embodiment, the sound amplifying column is arranged in a conical shape, and the diameter of the sound amplifying column gradually decreases from the inner part of the horn towards the outer part of the horn.

In one embodiment, the box further comprises a baffle for sealing the outlet end of the horn, a battery compartment recessed inwards from the bottom of the box body, a battery unit installed in the battery compartment, and a cover plate for covering the battery compartment.

In one embodiment, the portable audio enclosure further includes a control panel mounted to an end of the enclosure remote from the speaker drive.

Drawings

Fig. 1 is a schematic perspective view of a portable speaker according to an embodiment of the present utility model;

fig. 2 is a perspective view of the portable speaker shown in fig. 1 from another perspective;

FIG. 3 is an exploded view of the portable audio device of FIG. 1;

FIG. 4 is an exploded view of the portable audio device of FIG. 3 from another perspective;

FIG. 5 is a half cross-sectional view of the enclosure of the portable audio enclosure of FIG. 1;

fig. 6 is a cross-sectional view of the portable audio amplifier shown in fig. 1.

The drawings are marked with the following description:

10-box body, 11-box body, 110-handle, 12-horn, 120-positioning column, 13-bracket, 130-lug, 131-first gap, 132-second gap, 14-amplifying column, 15-baffle, 16-battery compartment, 17-battery unit and 18-cover plate;

a 20-speaker driver;

30-control panel.

Detailed Description

In order that the utility model may be readily understood, a more complete description of the utility model will be rendered by reference to the appended drawings. Preferred embodiments of the present utility model are shown in the drawings. This utility model may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "fixed to" 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.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model.

Referring to fig. 1 to 6, a portable sound box according to an embodiment of the present utility model includes a box 10, a speaker driver 20 installed in one end of the box 10, and a control panel 30 installed in the other end of the box 10.

The box 10 comprises a box main body 11, a horn 12 connected to the inside of one end of the box main body 11, a bracket 13 arranged in the horn 12, a sound amplifying column 14 protruding outwards from the middle of the inner wall of the horn 12, a baffle 15 for sealing the outlet end of the horn 12, a battery compartment 16 recessed inwards from the bottom of the box main body 11, a battery unit 17 arranged in the battery compartment 16, and a cover plate 18 for covering the battery compartment 16. Wherein, for portability, a handle 110 is provided at the top of the case body 11.

As shown in fig. 3 to 6, the horn 12 is approximately in a funnel shape with a wide outside and a narrow inside, a plurality of positioning columns 120 are uniformly connected to the inner wall of the horn 12 at intervals, a plurality of lugs 130 are uniformly connected to the periphery of the bracket 13 at intervals, the lugs 130 are in one-to-one correspondence with the positioning columns 120, and the bolts penetrate through the lugs 130 and are then screwed into the positioning columns 120, so that the matched connection between the bracket 13 and the horn 12 can be realized.

In this embodiment, the support 13 is substantially hollow and is in a shape of a truncated cone, and the sound amplifying column 14 is inserted into the middle of the support 13. Wherein, a first gap 131 is formed between the inner wall of the bracket 13 and the outer surface of the sound amplifying column 14, a second gap 132 is formed between the outer wall of the bracket 13 and the inner wall of the horn 12, and the first gap 131 and the second gap 132 are combined to form a sound channel for transmitting and reflecting the sound emitted by the speaker driver 20.

Further, in this embodiment, the inner wall of the horn 12 is disposed in a parabolic manner, and the parabolic design can make the sound wave reflect and refract multiple times inside the horn 12, so as to generate a wavefront that enhances the coherence of the amplitude, so that the sound wave becomes parallel and points to a specific area, thereby effectively reducing the divergence of the sound, making the directivity of the sound more concentrated and the projection distance more distant.

Referring to fig. 5 and 6 again, the sound amplifying column 14 is arranged in a conical shape, and the diameter of the sound amplifying column 14 gradually decreases from the inside of the horn 12 to the outside of the horn 12.

As shown in fig. 3 to 6, the speaker driver 20 is connected to an end of the bracket 13 facing away from the speaker post 14, and the speaker driver 20 is located inside the horn 12. The sound outlet of the speaker driver 20 faces the bracket 13, and the sound outlet of the speaker driver 20 corresponds to the middle of the bracket 13, so that sound emitted by the speaker driver 20 propagates outwards through the first gap 131 and the second gap 132. Unlike the traditional speaker driver 20 with its sound outlet facing the outside of the speaker, the portable speaker of the present utility model has the speaker driver 20 reversed, and the sound wave is reflected and refracted several times inside the horn 12 to become parallel by the cooperation of the horn 12 and the sound amplifying column 14, so that the divergence of the sound is effectively reduced, the directivity of the sound is more concentrated, and the projection distance is longer.

Above-mentioned portable audio amplifier, simple structure, convenient to use, with speaker driver 20 reverse, the sound wave that speaker driver 20 sent outwards propagates after the reflection of clarion 12 inside, makes the sound wave become parallel, and directional specific region helps improving the coverage and the definition of sound.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.

Claims

1. A portable sound box, comprising:

2. The portable sound box of claim 1, wherein a first gap is formed between an inner wall of the support and an outer surface of the sound amplifying column, a second gap is formed between an outer wall of the support and an inner wall of the horn, and the first gap and the second gap combine to form a sound outlet channel.

3. The portable sound box according to claim 1, wherein the horn is provided in a funnel shape with a wide outside and a narrow inside.

4. The portable audio amplifier of claim 1, wherein the sound amplification column is conically configured, and the diameter of the sound amplification column decreases from the interior of the horn toward the exterior of the horn.

5. The portable sound box of claim 1, wherein the box further comprises a baffle for closing the outlet end of the horn, a battery compartment recessed inward from the bottom of the box body, a battery unit mounted in the battery compartment, and a cover for covering the battery compartment.

6. The portable audio enclosure of claim 1, further comprising a control panel mounted to an end of the enclosure remote from the speaker driver.