CN219802572U - Loudspeaker box - Google Patents

Abstract

The utility model provides a loudspeaker box, which comprises a shell with an accommodating space, and a sounding monomer accommodated in the shell, wherein the sounding monomer is fixed on the shell and divides the accommodating space into a front sound cavity and a rear sound cavity which are mutually spaced, the sounding monomer comprises a vibrating diaphragm used for sounding, the vibrating diaphragm and the shell are surrounded to form the front sound cavity, the shell is provided with a sounding hole for communicating the front sound cavity with the outside, the loudspeaker box also comprises a support piece accommodated in the rear sound cavity, the support piece comprises a first fixing part fixed on the sounding monomer, a second fixing part fixed on the shell and a support part connected with the first fixing part and the second fixing part, the sounding monomer also comprises a magnetic bowl arranged at intervals with the shell, and the first fixing part is fixed on the magnetic bowl. The loudspeaker box provided by the utility model has high falling reliability.

Description

Loudspeaker box

[ field of technology ]

The utility model relates to the field of electroacoustic conversion, in particular to a loudspeaker box.

[ background Art ]

Speaker boxes are important acoustic components in portable electronic devices to accomplish the conversion between electrical and acoustic signals.

In the related art, a speaker box generally includes a housing and a sounding monomer fixed in the housing, and the sounding monomer is fixed in the housing, so that a stronger fixing strength is required to ensure the falling reliability of the speaker box. For a shell with a more regular shape, when the volume of the sounding monomer is similar to that of the shell and the shape is similar to that of the shell, a lower clamping plate in the sounding monomer magnetic circuit system is welded and fixed with the shell; however, for the speaker box having the irregular outer shell and the volume of the shell being much larger than that of the sounding monomer, the lower clamping plate of the sounding monomer is difficult to be welded with the shell, the welding area is small, the welding strength is low, even if the sounding monomer is further fixed by the way of gluing the side edges of the sounding monomer, the fixing strength between the sounding monomer and the shell is difficult to be ensured because the glue cannot be stacked up.

Therefore, there is a need to propose a new loudspeaker enclosure to solve the above-mentioned problems.

[ utility model ]

The utility model aims to overcome the technical problems and provide the loudspeaker box with high fixing strength and good falling reliability.

In order to achieve the above object, the present utility model provides a speaker box, which includes a housing having an accommodating space, and a sounding unit accommodated in the housing, wherein the sounding unit is fixed to the housing and divides the accommodating space into a front sound cavity and a rear sound cavity that are spaced apart from each other, the sounding unit includes a vibrating diaphragm for sounding, the vibrating diaphragm and the housing enclose to form the front sound cavity, a sound outlet hole for communicating the front sound cavity with the outside is provided on the housing, the speaker box further includes a support member accommodated in the rear sound cavity, the support member includes a first fixing portion fixed to the sounding unit, a second fixing portion fixed to the housing, and a support portion connecting the first fixing portion and the second fixing portion, the sounding unit further includes a magnetic bowl that is spaced apart from the housing, and the first fixing portion is fixed to the magnetic bowl.

Preferably, the magnetic bowl comprises a bottom surface far away from the vibrating diaphragm along the vibrating direction, the first fixing part is fixed on the bottom surface in a welding way, and the second fixing part is fixed on the shell in a welding way.

Preferably, the support further comprises a first arc-shaped part connecting the first fixing part and the support part, and a second arc-shaped part connecting the second fixing part and the support part; along the vibration direction, the supporting part and the bottom surface are arranged at intervals.

Preferably, the housing includes an upper cover provided with the sound outlet and a lower cover fixedly matched with the upper cover to form the accommodating space, and the second fixing part is fixed on the lower cover.

Preferably, the lower cover comprises a bottom wall and a side wall, wherein the bottom wall and the bottom wall are arranged at intervals along the vibration direction, the side wall is bent and extended from the periphery of the bottom wall to be fixed with the upper cover, and the second fixing part is welded to the side wall.

Preferably, the shell is rectangular, the side walls comprise first side walls arranged at opposite intervals and second side walls connected with the two first side walls and arranged at opposite intervals, the supporting piece comprises two second fixing parts, and the two second fixing parts are respectively fixedly connected with one first side wall.

Preferably, the first sidewall extends in the long axis direction.

Preferably, the first fixing portion is provided with a hollowed-out portion penetrating through the first fixing portion along the vibration direction.

Preferably, the projection of the support part partially overlaps the bottom surface in the vibration direction.

Compared with the related art, in the loudspeaker box provided by the utility model, the support piece for connecting the sounding monomer and the shell is arranged in the rear sound cavity, the first fixing part of the support piece is fixedly connected with the magnetic bowl of the sounding monomer, and the second fixing part of the support piece is fixedly connected with the shell, so that the sounding monomer is supported and fixed on the shell, the fixing strength between the sounding monomer and the shell is effectively improved, the falling reliability of the loudspeaker box is improved, and the service life of a product is prolonged.

[ description of the drawings ]

For a clearer description of the technical solutions of the embodiments of the present utility model, the drawings that are needed in the description of the embodiments will be briefly introduced below, it being obvious that the drawings in the description below are only some embodiments of the present utility model, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art, wherein:

fig. 1 is a perspective view of a loudspeaker enclosure of the present utility model;

fig. 2 is an exploded view of a loudspeaker enclosure of the present utility model;

fig. 3 is a partial exploded view of the loudspeaker enclosure of the present utility model from another perspective;

FIG. 4 is a cross-sectional view taken along line A-A of FIG. 1;

FIG. 5 is a perspective view of a sound producing unit in a loudspeaker enclosure of the present utility model;

FIG. 6 is an exploded view of the sound emitting unit of FIG. 5;

fig. 7 is a perspective view of the sound emitting unit of fig. 5 from another perspective.

[ detailed description ] of the utility model

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by one of ordinary skill in the art without undue burden on the person of ordinary skill in the art based on embodiments of the present utility model, are within the scope of the present utility model.

As shown in fig. 1 to 7, the present utility model provides a speaker box 100, which includes a housing 10 having a receiving space 11 and a sounding unit 20 received in the housing 10; the sounding unit 20 is fixed to the housing 10 and divides the receiving space 11 into a front sound chamber 111 and a rear sound chamber 112 spaced apart from each other. Specifically, the casing 10 is provided with a sound outlet 12 for communicating the front sound cavity 111 with the outside, and the sound wave emitted by the sound generating unit 20 is transmitted to the outside through the sound outlet 12 after passing through the front sound cavity 111.

As shown in fig. 2-4, the housing 10 includes an upper cover 13 provided with the sound outlet 12, and a lower cover 14 fixedly engaged with the upper cover 13 to form the accommodating space 11. Further, the lower cover 14 includes a bottom wall 141 disposed at a distance from the sounding unit 20 along the vibration direction, and a side wall 142 bent from the periphery of the bottom wall 141 to be fixed to the upper cover 13.

In the present utility model, the specific structure of the sounding unit 20 is not limited, and may be any sounding unit that can normally sound, and the specific structure may be set according to the actual design requirement. For example, in the present embodiment, as shown in fig. 5 to 7, the sounding unit 20 includes a frame 21, a vibration system 22 fixed to the frame 21, and a magnetic circuit system 23 driving the vibration system 22 to vibrate for sounding; specifically, the vibration system 22 includes a diaphragm 221 fixed to the upper cover 13 and a voice coil 222 driving the diaphragm 221; the magnetic circuit system 23 comprises magnetic steel 231 and a magnetic bowl 232 for fixing the magnetic steel 231; the magnetic bowl 232 is spaced from the housing 10, i.e., the magnetic bowl 232 is spaced from the bottom wall 141. It can be appreciated that the diaphragm 221 is fixed to the upper cover 13 and disposed opposite to the sound outlet 12; the diaphragm 221 and the upper cover 13 enclose the front acoustic cavity 111. The loudspeaker enclosure 100 further comprises a support 30 housed within the rear acoustic chamber 112; wherein the support 30 includes a first fixing portion 31 fixed to the sounding body 20, a second fixing portion 32 fixed to the housing 10, and a support portion 33 connecting the first fixing portion 31 and the second fixing portion 32; specifically, the first fixing portion 31 is fixed to the magnetic bowl 232. The magnetic bowl 232 includes a bottom surface 2321 far from the diaphragm 221 along the vibration direction, the first fixing portion 31 is fixed on the bottom surface 2321 by welding, and the second fixing portion 32 is fixed on the housing 10 by welding; specifically, the second fixing portion 32 is welded and fixed to a surface of the sidewall 142 of the lower cover 14 facing the accommodating space 11.

It can be appreciated that in the speaker box 100 provided by the present utility model, not only one sound generating unit with a larger volume can be provided, but also two or more sound generating units can be stably fixed to the housing. In this embodiment, the number of the sounding units 20 is two, and they are stably fixed to the housing 10 through the supporting member 30. The two sounding units 20 may be integrally formed or may be separately fixed, which is not limited herein.

As shown in fig. 3-4, further, the support 30 further includes a first arc-shaped portion 34 connecting the first fixing portion 31 and the support portion 33, and a second arc-shaped portion 35 connecting the second fixing portion 32 and the support portion 33; the support portion 33 is spaced apart from the bottom surface 2321 in the vibration direction. It can be appreciated that the supporting portion 33 and the first fixing portion 31 are located on different surfaces, and have a height difference along the vibration direction, and by providing the first arc portion 34 and the second arc portion 35, the reliability of the supporting member 30 can be enhanced, and the supporting member is not easy to break. In the vibration direction, the projection of the support portion 30 partially overlaps the bottom surface 2321.

In the present utility model, the housing 10 has a rectangular shape, the side wall 142 includes a first side wall 1421 disposed opposite to each other and a second side wall 1422 connected to the two first side walls 1421 and disposed opposite to each other, and the supporting member 30 includes two second fixing portions 32, where the two second fixing portions 32 are fixedly connected to one of the first side walls 1421. That is, the support 30 extends from one of the first side walls 1421 to the other first side wall 1421. In this embodiment, the first sidewall 1421 extends in the long axis direction. Further, the first fixing portion 31 is provided with a hollow portion 311 penetrating therethrough along the vibration direction; since the supporting member 30 is a metal member, the hollowed-out portion 311 is provided to reduce the weight of the supporting member 30 on the basis of ensuring the fixing strength, thereby reducing the weight of the speaker box 100.

The speaker box 100 further includes a circuit board 40 electrically connecting the sounding body 20 with an external circuit.

Compared with the related art, in the loudspeaker box provided by the utility model, the support piece for connecting the sounding monomer and the shell is arranged in the rear sound cavity, the first fixing part of the support piece is fixedly connected with the magnetic bowl of the sounding monomer, and the second fixing part of the support piece is fixedly connected with the shell, so that the sounding monomer is supported and fixed on the shell, the fixing strength between the sounding monomer and the shell is effectively improved, the falling reliability of the loudspeaker box is improved, and the service life of a product is prolonged.

While the utility model has been described with respect to the above embodiments, it should be noted that modifications can be made by those skilled in the art without departing from the inventive concept, and these are all within the scope of the utility model.

Claims (9)

1. The utility model provides a loudspeaker box, its include have accommodation space's shell and accept in sound production monomer in the shell, sound production monomer be fixed in the shell and with accommodation space divide into preceding sound cavity and back sound cavity of mutual interval, sound production monomer including the vibrating diaphragm that is used for the sound production, the vibrating diaphragm with the shell encloses to establish and forms preceding sound cavity, be equipped with on the shell with the sound outlet of preceding sound cavity and external intercommunication, characterized in that, loudspeaker box still includes accept in back sound intracavity's support piece, support piece include be fixed in sound production monomer's first fixed part, be fixed in the second fixed part of shell and connect first fixed part with the support part of second fixed part, sound production monomer still include with the shell interval sets up magnetism bowl, first fixed part is fixed in magnetism bowl.

2. The loudspeaker enclosure of claim 1, wherein the magnetic bowl includes a bottom surface remote from the diaphragm in a vibration direction, the first fixing portion being welded to the bottom surface, the second fixing portion being welded to the housing.

3. The loudspeaker enclosure of claim 2, wherein the support further comprises a first arcuate portion connecting the first fixed portion and the support portion and a second arcuate portion connecting the second fixed portion and the support portion; along the vibration direction, the supporting part and the bottom surface are arranged at intervals.

4. The loudspeaker enclosure according to claim 2, wherein the housing includes an upper cover provided with the sound outlet hole and a lower cover fixedly fitted with the upper cover to form the receiving space, and the second fixing portion is fixed to the lower cover.

5. The loudspeaker enclosure according to claim 4, wherein the lower cover includes a bottom wall provided at a distance from the bottom surface in the vibration direction and a side wall bent from a periphery of the bottom wall to be fixed to the upper cover, and the second fixing portion is welded to the side wall.

6. The loudspeaker enclosure of claim 5, wherein the housing is rectangular, the side walls include first side walls disposed at opposite intervals and second side walls connecting the two first side walls and disposed at opposite intervals, and the support member includes two second fixing portions fixedly connected to one of the first side walls, respectively.

7. The loudspeaker enclosure of claim 6, wherein the first sidewall extends in a long axis direction.

8. The loudspeaker enclosure of claim 6, wherein the first fixing portion is provided with a hollowed-out portion penetrating therethrough in a vibration direction.

9. The speaker box according to claim 2, wherein a projection of the support portion partially overlaps the bottom surface in a vibration direction.