CN212572937U

CN212572937U - Loudspeaker box

Info

Publication number: CN212572937U
Application number: CN202020987212.4U
Authority: CN
Inventors: 丁健华; 冯国袖; 吴树文
Original assignee: Acc Precision Electronic Shuyang Co ltd; AAC Technologies Holdings Shuyang Co Ltd
Current assignee: Acc Precision Electronic Shuyang Co ltd; AAC Technologies Holdings Shuyang Co Ltd
Priority date: 2020-06-02
Filing date: 2020-06-02
Publication date: 2021-02-19
Anticipated expiration: 2030-06-02
Also published as: WO2021243746A1

Abstract

The utility model provides a loudspeaker box, which comprises a shell with a cavity and a loudspeaker single body, wherein the loudspeaker single body is arranged outside the shell; the shell is provided with a first through hole, and the loudspeaker single body seals the first through hole; the loudspeaker unit and a first end part connected with the shell are provided with a second through hole communicated with the inner space of the loudspeaker unit, and the inner space of the loudspeaker unit is communicated with the cavity through the second through hole and the first through hole. The utility model discloses a with the speaker monomer external, reduced the holistic height of speaker box, the casing can extend to width and length direction simultaneously, makes the volume of cavity can be enough big, when reducing speaker box overall height, has also guaranteed the bass effect of speaker box.

Description

Loudspeaker box

[ technical field ] A method for producing a semiconductor device

The utility model relates to an electronic technology equipment field, in particular to speaker box.

[ background of the invention ]

With the development of science and technology, electronic products such as mobile phones have been widely popularized and become an indispensable part of people's work and life. Meanwhile, in order to meet the needs of consumers, the electronic digital products generally have various audio-visual entertainment functions of playing videos, listening songs and the like, and users can also use the electronic products to deliver resumes, store data and the like.

The speaker box of prior art is including the casing that has accommodating space and accept in accommodating space's speaker monomer, and the speaker monomer becomes antechamber and back chamber with the accommodating space interval in the casing, and the antechamber is used for forming out the sound passageway and promotes high frequency performance, and the back chamber is used for strengthening the audio, and the volume in back chamber is big more, and the bass effect is better. Because the speaker monomer has a take the altitude, leads to the holistic height of speaker box higher, can't satisfy the demand of the electronic product that the volume dwindles day by day, if reduce the holistic height of speaker box, then the height that can only compress the back chamber leads to the back chamber volume to reduce, and the bass effect variation.

[ Utility model ] content

An object of the utility model is to provide a speaker box, through external with the speaker monomer, reduce speaker box's height to guarantee the bass effect.

The technical scheme of the utility model as follows:

a loudspeaker box comprises a shell with a cavity and a loudspeaker single body, wherein the loudspeaker single body is arranged outside the shell;

the shell is provided with a first through hole, and the loudspeaker single body seals the first through hole;

the loudspeaker unit and a first end part connected with the shell are provided with a second through hole communicated with the inner space of the loudspeaker unit, and the inner space of the loudspeaker unit is communicated with the cavity through the second through hole and the first through hole.

Preferably, the loudspeaker further comprises a supporting piece, the loudspeaker unit is mounted on the supporting piece, the supporting piece is connected to the shell, a third through hole is formed in the supporting piece, and the third through hole is used for communicating the second through hole with the first through hole.

Preferably, the supporting member includes a bottom plate and a side wall that is bent and extended along the edge of the bottom plate toward the direction close to the speaker unit, the bottom plate and the side wall enclose an accommodating cavity for installing the speaker unit, the speaker unit is installed on the bottom plate, and the bottom plate is provided with the third through hole.

Preferably, the support member further includes a bending portion extending from the edge of the side wall in a direction away from the speaker unit.

Preferably, the number of the second through holes is greater than or equal to 1, the positions of the third through holes correspond to the second through holes, and the number of the third through holes is less than or equal to the number of the second through holes.

Preferably, the loudspeaker further comprises a connecting piece, the connecting piece is arranged between the supporting piece and the loudspeaker single body, and a fourth through hole communicated with the second through hole and the third through hole is formed in the connecting piece.

Preferably, the sealing device further comprises a sealing member disposed between the support member and the housing.

Preferably, the seal is an elastomeric seal.

Preferably, the speaker monomer including have accommodation space the basin frame, the fixing in the magnetism bowl of basin frame, accept in magnet steel in the magnetism bowl, be fixed in the vibrating diaphragm of basin frame and with the vibrating diaphragm be connected and suspension in the magnetism bowl with the voice coil loudspeaker voice coil between the magnetic gap that the magnet steel formed, the bottom of magnetism bowl constitutes first end, the lateral part of basin frame constitutes the free lateral part of speaker, vibrating diaphragm place plane constitute with the relative second end that sets up of first end.

Preferably, a protective cover is arranged on the diaphragm.

Preferably, the damping device further comprises a damping net, and the damping net is covered on the second through hole.

Preferably, the housing includes a first housing and a second housing covering the first housing, and the first through hole is located on the first housing.

Preferably, the cavity is filled with sound-absorbing powder.

The beneficial effects of the utility model reside in that: through arranging the speaker monomer in the outside of casing, can reduce the shared high space of speaker box, can enlarge the back chamber again, strengthen the bass effect, satisfy electronic equipment miniaturization, high performance's demand.

[ description of the drawings ]

Fig. 1 is an exploded view of each component of a speaker cabinet according to an embodiment of the present invention.

Fig. 2 is a schematic view of the overall structure of the speaker cabinet shown in fig. 1.

Fig. 3 is a schematic sectional view taken along a-a in fig. 2.

Fig. 4 is a schematic structural diagram of a supporting member according to an embodiment of the present invention.

Fig. 5 is a schematic bottom view of a speaker unit according to an embodiment of the present invention.

Fig. 6 is a schematic bottom view of a speaker unit with a damping net covering the second through hole according to an embodiment of the present invention.

Fig. 7 is a schematic bottom view of a structure including a supporting member, a connecting member, a damping net and a speaker unit according to an embodiment of the present invention.

[ detailed description ] embodiments

The present invention will be further described with reference to the accompanying drawings and embodiments.

Referring to fig. 1-3 and 5, a speaker box includes a housing 10 having a cavity 11 and a speaker unit 20, the speaker unit 20 is disposed outside the housing 10, the housing 10 is provided with a first through hole 12, the speaker unit 20 seals the first through hole 12, a first end of the speaker unit 20 connected to the housing 10 is provided with a second through hole 21 communicating with an inner space of the speaker unit 20, and the inner space of the speaker unit 20 is communicated with the cavity 11 through the second through hole 21 and the first through hole 12. The loudspeaker single body 20 is arranged outside the shell 10, the height of the shell 10 except the loudspeaker single body 20 is greatly reduced, and the shell 10 does not need to cover the loudspeaker single body 20, so that the volume of the loudspeaker box is reduced, and the requirement of miniaturization of electronic products can be met; meanwhile, the internal space of the speaker unit 20 is communicated with the cavity 11 in the housing 10, so that the volume of the rear cavity of the speaker unit 20 is enlarged, the larger the volume of the rear cavity of the speaker box is, the better the bass effect is, the housing 10 can extend in the width and length directions, the volume of the cavity 11 is continuously enlarged, and meanwhile, the height is not increased. Therefore, the utility model discloses a speaker box also has high performance when satisfying the miniaturization demand.

In this embodiment, referring to fig. 1 to 4, a supporting member 30 for mounting a speaker unit is provided, the supporting member 30 is connected to the housing 10, a third through hole 34 is formed on the supporting member 30, and the third through hole 34 is used for communicating the second through hole 21 with the first through hole 12. Specifically, the supporting member 30 includes a bottom plate 31 and a side wall 32 that is bent and extended along the edge of the bottom plate 31 toward the direction close to the speaker unit 20, the bottom plate 31 and the side wall 32 enclose an accommodating cavity for installing the speaker unit 20, a third through hole 34 is opened on the bottom plate 31, and the speaker unit 20 is installed on the bottom plate 31.

Preferably, the support 30 is made of a metal material, may have a thinner thickness, and is more robust.

Preferably, the supporting member 30 further includes a bent portion 33 extending from the edge of the side wall 32 in a direction away from the speaker unit 20, and the bent portion 33 prevents the side wall 32 and the end portion from being scratched by burrs.

In this embodiment, a connecting member 40 is disposed between the speaker unit 20 and the supporting member 30, the connecting member 40 is used to form a passage for air inside the speaker unit 20 to enter the cavity 11, and a fourth through hole 41 communicating with the second through hole 21 and the third through hole 34 is disposed on the connecting member 40.

The connector 40 also has a sealing function to seal the inner space of the speaker unit 20 and the air of the cavity 11 from the outside. Preferably, the material of the connecting member 40 is an elastic material to provide better sealing. Preferably, the connection member 40 abuts the speaker unit 20 and the supporter 30, respectively. In this embodiment, the connecting member 40 is made of foam.

The support member 30 also has the effect of regulating the flow of air from the interior of the speaker unit 20 into the interior of the housing 10, which if excessive would cause problems of sound distortion. Preferably, the number of the second through holes 21 is greater than or equal to 1, the positions of the third through holes 34 correspond to the second through holes 21, and the number of the third through holes 34 is less than or equal to the number of the second through holes 21.

Referring to fig. 5, the number of the second through holes 21 is 4, and the second through holes are respectively located at four corners of the end surface of the speaker unit 20. Referring to fig. 6, the damping net 60 is preferably covered on the second through hole 21, not only to optimize the acoustic performance, but also to prevent the sound-absorbing powder filled in the cavity 11 from entering the inside of the speaker unit 20 through the second through hole 21. The speaker unit 20, the damping net 60, the connecting member 40 and the supporting member 30 are sequentially connected, and the number and the position of the fourth through holes 41 on the connecting member 40 are the same as those of the second through holes 21. Referring to fig. 7, the third through holes 34 of the support 30 communicate with only a portion of the second through holes 21, the number of the third through holes 34 is 2, and the third through holes correspond to two adjacent second through holes 21, respectively, the bottom plate 31 of the support 30 shields a portion of the air flow, and adjusts the air flow entering the interior of the housing 10 from the interior of the speaker unit 20, thereby preventing sound distortion and further improving the performance of the speaker box.

Of course, in alternative embodiments, the number of the third through holes 34 may also be 1, 3, or 4, etc. The number of the second through holes 21 can be arbitrarily selected, and the position of the second through holes 21 can be located at any position of the first end portion.

A seal 50 is provided between the support 30 and the housing 10. Preferably, the seal 50 is an elastomeric seal to provide better sealing. The seal 50 seals the speaker box from the outside. In this particular embodiment, the seal 50 is an annular sealing foam.

Preferably, the seal 50 abuts the housing 10 and the support 30, respectively.

In this embodiment, the speaker unit 20 includes a frame having a receiving space, a magnetic bowl fixed on the frame, a magnetic steel accommodated in the magnetic bowl, a diaphragm fixed on the frame, and a voice coil connected to the diaphragm and suspended between a magnetic gap formed by the magnetic bowl and the magnetic steel, a first end of the speaker unit 20 connected to the housing 10 is formed at the bottom of the magnetic bowl, a side of the speaker unit 20 is formed at a side of the frame, and a second end of the speaker unit 20 opposite to the first end is formed at a plane where the diaphragm is located. And the vibrating diaphragm is provided with a protective cover for protecting the vibrating diaphragm. The inner space of the speaker unit 20 and the cavity 11 form a rear cavity of the speaker box, the diaphragm and a front structure of the diaphragm enclose a front cavity of the speaker box, and the front cavity is communicated with the sound outlet. The space in vibrating diaphragm the place ahead, ante-chamber promptly, mainly used forms the high frequency performance of sound channel and adjustment speaker box, and the space at vibrating diaphragm rear in the present case, including the space inside 20 loudspeaker monomer and the space in the casing, mainly used strengthens the bass effect, and the volume in back chamber is big more, and the bass effect is better. Since the structure in front of the diaphragm is irrelevant to the invention of the present application, it is not given. Of course, the speaker unit 20 may have other structures.

In the present embodiment, the housing 10 includes a first housing 13 and a second housing 14 covering the first housing 13, and the first through hole 12 is located on the first housing 13. The sum of the heights of the first and

second housings

13 and 14 is reduced, and the volume of the cavity 11 can be adjusted by increasing the widths and lengths of the first and

second housings

13 and 14.

The cavity 11 of the housing 10 is also filled with sound-absorbing powder, which can improve the performance of the speaker box and meet the pursuit of high-quality music.

The above embodiments of the present invention are only described, and it should be noted that, for those skilled in the art, modifications can be made without departing from the inventive concept, but these all fall into the protection scope of the present invention.

Claims

1. A loudspeaker box comprises a shell with a cavity and a loudspeaker single body, and is characterized in that the loudspeaker single body is arranged outside the shell;

2. The speaker box of claim 1, further comprising a support member, wherein the speaker unit is mounted on the support member, the support member is connected to the housing, the support member is provided with a third through hole, and the third through hole is used for communicating the second through hole with the first through hole.

3. The speaker box as claimed in claim 2, wherein the supporting member includes a bottom plate and a side wall extending along an edge of the bottom plate and bending toward a direction close to the speaker unit, the bottom plate and the side wall define a receiving cavity for receiving the speaker unit, the speaker unit is mounted on the bottom plate, and the bottom plate is provided with the third through hole.

4. A loudspeaker enclosure according to claim 3, wherein the support member further comprises a bent portion extending from the edge of the side wall in a direction away from the speaker unit.

5. The speaker box according to claim 2, wherein the number of the second through holes is equal to or greater than 1, the third through holes are located corresponding to the second through holes, and the number of the third through holes is equal to or less than the number of the second through holes.

6. The speaker box of claim 2, further comprising a connecting member disposed between the supporting member and the speaker unit, wherein a fourth through hole communicating with the second through hole and the third through hole is disposed on the connecting member.

7. A loudspeaker enclosure according to claim 2, further comprising a seal disposed between the support and the housing.

8. A loudspeaker enclosure according to claim 7, wherein the seal is an elastomeric seal.

9. The loudspeaker box of claim 1, wherein the single loudspeaker body comprises a frame with a containing space, a magnetic bowl fixed on the frame, magnetic steel contained in the magnetic bowl, a vibrating diaphragm fixed on the frame, and a voice coil connected with the vibrating diaphragm and suspended between the magnetic bowl and a magnetic gap formed by the magnetic steel, the bottom of the magnetic bowl forms the first end, the side of the frame forms the side of the single loudspeaker body, and the plane where the vibrating diaphragm is located forms a second end opposite to the first end.

10. A loudspeaker enclosure as claimed in claim 9, wherein the diaphragm is provided with a protective cover.

11. The loudspeaker enclosure of claim 1, further comprising a damping mesh covering the second through hole.

12. A loudspeaker enclosure according to claim 1, wherein the housing comprises a first housing and a second housing that covers the first housing, the first aperture being in the first housing.

13. A loudspeaker enclosure according to claim 1, wherein the cavity is filled with sound absorbing powder.