CN213426394U - Sound equipment - Google Patents

Abstract

The utility model discloses a sound box, include: the box body is provided with a mounting opening; the loudspeaker is positioned in the box body and is arranged at the mounting opening; the loudspeaker is provided with a first dust cover and a second dust cover arranged on one side, close to the mounting opening, of the first dust cover, and the first dust cover and the second dust cover are arranged in an enclosing mode to form a resonance sound-deadening cavity. Through setting up first dust cover and second dust cover enclose to establish and form resonance noise elimination chamber, have effectively reduced the height of the resonance peak that the frequency response of speaker worsens for the frequency response is flatter, improves frequency characteristic, thereby finally reaches the tone quality effect that improves speaker system.

Description

Sound equipment

Technical Field

The utility model belongs to the technical field of the stereo set, concretely relates to stereo set.

Background

The portable bluetooth speaker, smart speaker and the like of the consumer electronics products popular in the market at present pursue the sound effect of 360 degrees generally. Especially, in order to improve the voice awakening effect of the smart speaker, the distance between the array microphone and the speaker unit needs to be increased, and usually, the speaker unit is installed at the bottom of the speaker, and the speaker is downward reflected by the reflection cone to diffuse sound to the surroundings. The front cavity effect due to the limitation of the radiation window causes a deterioration of the frequency response of the loudspeaker system.

The above information disclosed in this background section is only for enhancement of understanding of the background of the application and therefore it may comprise prior art that does not constitute known to a person of ordinary skill in the art.

SUMMERY OF THE UTILITY MODEL

The utility model discloses to foretell problem among the prior art, provide a stereo set, through resonant sound-attenuating structure, improve frequency characteristic to finally reach the tone quality effect that improves speaker system.

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

a sound box, comprising:

the box body is provided with a mounting opening;

the loudspeaker is positioned in the box body and is arranged at the mounting opening;

the loudspeaker is provided with a first dust cover and a second dust cover, and the first dust cover and the second dust cover are arranged in an enclosing mode to form a resonance silencing cavity.

Furthermore, the second dust cover is cambered, and a resonance opening is formed in the middle of the second dust cover.

Further, the second dust cover further has a resonance portion extending in a direction approaching the first dust cover along an edge of the resonance opening.

Furthermore, a damping material is filled in the resonance silencing cavity.

Furthermore, a damping net is arranged at the pipe orifice of the resonance silencing cavity.

Further, the loudspeaker is also provided with a supporting frame assembled with the mounting port.

Furthermore, the support frame is provided with a support body, an assembly frame assembled with the mounting opening, and an arc-shaped folding ring connected with the support body and the assembly frame.

Furthermore, the loudspeaker is also provided with a T iron, a voice coil sleeved on the outer side of the T iron, and a magnetic circuit sleeved on the outer side of the voice coil.

Further, the speaker still has the cover and establishes the voice coil skeleton in the T iron outside, establish the play ripples that the outside of voice coil skeleton just radially outwards extended the setting.

Furthermore, the loudspeaker is also provided with a fixing frame which is used for supporting the outer side of the elastic wave, and the fixing frame is fixedly arranged on the magnetic path.

Furthermore, the loudspeaker also comprises a reflecting cone which is matched with the loudspeaker, the reflecting cone and the box body are arranged at intervals, and a sound outlet channel is arranged between the reflecting cone and the box body.

Compared with the prior art, the utility model discloses an advantage is with positive effect: through setting up first dust cover and second dust cover enclose to establish and form resonance noise elimination chamber, have effectively reduced the height of the resonance peak that the frequency response of speaker worsens for the frequency response is flatter, improves frequency characteristic, thereby finally reaches the tone quality effect that improves speaker system.

Other features and advantages of the present invention will become more apparent from the following detailed description of the invention when read in conjunction with the accompanying drawings.

Drawings

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

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

fig. 2 is a schematic structural diagram of the loudspeaker in fig. 1;

FIG. 3 is an enlarged schematic view of a portion of the structure of FIG. 2;

FIG. 4 is a schematic structural view of the case of FIG. 1;

fig. 5 is a schematic structural diagram of a second embodiment of the sound box of the present invention;

fig. 6 is a schematic structural diagram of the speaker of fig. 5;

fig. 7 is an enlarged schematic structural view of a part of the structure in fig. 6.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solutions in the embodiments of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", and the like indicate directions or positional relationships based on the positional relationships shown in the drawings, and the direction close to the axis of the cavity is "inner", otherwise "outer". The terminology is for the purpose of describing the invention only and is not intended to be limiting of the invention since it is not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation. Moreover, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Referring to fig. 1 to 4, which are first embodiments of the speaker of the present invention, a speaker includes: the loudspeaker comprises a box body 10, a loudspeaker 20 arranged in the box body 10 and a reflecting cone 30 matched with the loudspeaker 20, wherein the reflecting cone 30 is arranged at a distance from the box body 10, and a sound outlet channel 31 is arranged between the reflecting cone 30 and the box body 10.

A mounting port 11 is formed on the box body 10, and the loudspeaker 20 is mounted at the mounting port 11; the speaker 20 has a first dust cover 22 and a second dust cover 23, and the first dust cover 22 and the second dust cover 23 are enclosed to form a resonant sound-deadening chamber 29. By providing the resonance sound-deadening chamber 29, the height of the resonance peak of the speaker 20 at which the frequency response deteriorates is effectively reduced, so that the frequency response becomes flatter, the frequency characteristic is improved, and finally the effect of improving the sound quality of the speaker system is achieved.

The first dust cover 22 is of a cambered surface structure, preferably a spherical surface structure, and protrudes towards the direction close to the reflection cone 30; the second dust cap 23 is of an arc-shaped structure, preferably a spherical structure, and protrudes toward the direction close to the reflection cone 30; the second dust cover 23 is located between the first dust cover 22 and the reflection cone 30.

In other embodiments, the first dust cover 22 may be configured to be concave and convex in a direction close to the reflective cone 30;

referring to fig. 3, the second dust cover 23 includes an arc-shaped second cover 230, a resonance port 231 opened in the middle of the second cover 230, and a resonance portion 232 extending along the edge of the resonance port 231 in a direction approaching the first dust cover 22.

The second dust cover 23 is provided with the second cover 230, the resonance port 231, the resonance portion 232, and the distance from the first dust cover 22, and the resonant sound-deadening chamber 29 is formed by surrounding the first dust cover 22 and the second dust cover 23, whereby the height of the resonance peak of the speaker, which deteriorates in frequency response, is reduced by resonance.

The loudspeaker 20 is further provided with a support frame 24, the support frame 24 is fixedly assembled with the mounting opening 11, the support frame 24 is in a horn mouth shape and used for fixedly mounting the loudspeaker 20, and the support frame 24, the box body 10 and the reflecting cone 30 are surrounded to form a sound outlet channel 31. The support bracket 24 has a support body 241, a mounting bracket 242 mounted to the mounting opening 11, and an arc-shaped folded ring 243 connecting the support body 241 and the mounting bracket 242.

The support body 241 has a tapered structure, and is inclined outward in a direction close to the reflection cone 30, thereby facilitating the diffusion of sound. The mounting bracket 242 is used for being fixed with the mounting opening 11, a mounting groove is formed at the edge of the mounting opening 11, the mounting bracket 242 has a mounting edge 2421 located in the mounting groove, an extension part 2422 is bent along the inner end of the mounting edge 2421 and extends inwards the box body 10, and the mounting edge 2421 is arranged obliquely outwards in the direction away from the reflection cone 30. The arc-shaped folding ring 243 is a semicircular arc 2431, a first fixed edge 2432 is arranged along the outer end of the semicircular arc 2431 in a bending and extending mode, a second fixed edge 2433 is arranged along the inner end of the semicircular arc 2431 in a bending and extending mode, the first fixed edge 2432 is parallel to and adjacent to the assembling edge 2421, and the first fixed edge 2432 and the assembling edge 2421 are both located in the installation groove; the second fixing edge 2433 is fixedly connected with the outer end of the support body 241.

The loudspeaker 20 further comprises a T-bar 21, a voice coil 25 sleeved outside the T-bar 21, and a magnetic circuit 26 sleeved outside the voice coil 25, and is used for realizing sound production of the loudspeaker 20. The speaker further has a voice coil holder 251 fitted around the outside of the T-bar 21, and the damper 27 is disposed to extend radially of the voice coil holder 251, the damper 27 being disposed to undulate in an outward direction. The speaker 20 further has a holder 28 for supporting outside the damper 27, and the holder 28 is fixed to the magnetic circuit 26.

Referring to fig. 5-7, a second embodiment of the sound box of the present invention is provided, and the main difference between this embodiment and the first embodiment is: a damping net is provided at the resonance muffling chamber, and the structure may be the same as that of the first embodiment.

A sound box includes: the loudspeaker comprises a box body 10, a loudspeaker 20 arranged in the box body 10 and a reflecting cone 30 matched with the loudspeaker 20, wherein the reflecting cone 30 is arranged at a distance from the box body 10. A mounting port 11 is formed on the box body 10, and the loudspeaker 20 is mounted at the mounting port 11; the speaker 20 has a first dust cover 22 and a second dust cover 23, and the first dust cover 22 and the second dust cover 23 are enclosed to form a resonant sound-deadening chamber 29. By providing the resonance sound-deadening chamber 29, the height of the resonance peak of the speaker 20 at which the frequency response deteriorates is effectively reduced, so that the frequency response becomes flatter, the frequency characteristic is improved, and finally the effect of improving the sound quality of the speaker system is achieved.

The second dust cover 23 has an arc-shaped second cover body 230, a resonance port 231 opened in the middle of the second cover body 230, a resonance part 232 extending along the edge of the resonance port 231 toward the first dust cover 22, and a damping net 233 arranged at one end of the resonance part 232 close to the first dust cover 22, and by arranging the damping net 233, the noise reduction effect of the resonance noise reduction cavity 29 is further improved.

In other embodiments, the resonant sound-deadening cavity 29 may be filled with a damping material to improve the sound-deadening effect of the resonant sound-deadening cavity 29.

The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or that equivalents may be substituted for elements thereof; such modifications and substitutions do not depart from the spirit and scope of the present invention, which is claimed.

Claims (10)

1. A sound box, comprising:

the box body is provided with a mounting opening;

the loudspeaker is positioned in the box body and is arranged at the mounting opening;

the loudspeaker is provided with a first dust cover and a second dust cover, and the first dust cover and the second dust cover are arranged in an enclosing mode to form a resonance silencing cavity.

2. The sound box according to claim 1, wherein the second dust cover is arc-shaped, and a resonance opening is formed in the middle of the second dust cover.

3. The audio device according to claim 2, wherein the second dust cover further has a resonance portion extending along an edge of the resonance port in a direction approaching the first dust cover.

4. The sound of claim 1, wherein a damping material is filled in the resonant sound-deadening chamber.

5. The acoustic system of claim 1, wherein a damping mesh is provided at the orifice of the resonant muffling chamber.

6. Sound box according to any of the claims 1-5, characterised in that the loudspeaker also has a support frame fitted with the mounting opening.

7. The audio player of claim 6, wherein the support frame has a support body, a mounting bracket mounted to the mounting opening, and an arcuate fold connecting the support body and mounting bracket.

8. The audio device according to any one of claims 1 to 5, wherein said speaker further comprises a T-iron, a voice coil fitted around an outer side of said T-iron, and a magnetic circuit fitted around an outer side of said voice coil.

9. The loudspeaker according to claim 8, wherein the loudspeaker further comprises a voice coil bobbin sleeved outside the T-shaped iron, and an elastic wave arranged outside the voice coil bobbin and extending radially outwards; the loudspeaker is also provided with a fixing frame which is used for supporting the outer side of the elastic wave, and the fixing frame is fixedly arranged on the magnetic path.

10. The sound box according to any one of claims 1-5, further comprising a reflecting cone arranged to match said speaker, said reflecting cone being spaced from said cabinet, and a sound channel being provided between said reflecting cone and said cabinet.

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