CN111405423A

CN111405423A - Loudspeaker

Info

Publication number: CN111405423A
Application number: CN201911322214.XA
Authority: CN
Inventors: 宋威; 邵涛; 陶伟伟
Original assignee: AAC Technologies Pte Ltd
Current assignee: AAC Technologies Pte Ltd
Priority date: 2019-11-21
Filing date: 2019-12-20
Publication date: 2020-07-10
Anticipated expiration: 2039-12-20
Also published as: CN111405422A; WO2021097993A1; CN111405423B; CN111372177B; CN111372177A; CN111405422B

Abstract

The present invention provides a speaker, including: the vibration system comprises an upper sound film which is fixed on the basin frame and used for vibration and sound production, the basin frame comprises a bottom wall, an inner wall and a bottom wall, the inner wall extends from the bottom wall to the upper sound film and is arranged at intervals, and the inner wall encloses a first accommodating space for accommodating the magnetic circuit system; the magnetic circuit system comprises a magnetic frame and a magnetic steel assembly accommodated in the magnetic frame. The upper sound film comprises an inner edge fixed on one end, far away from the bottom wall, of the inner wall and an outer edge fixed on the outer wall, the loudspeaker further comprises a first support piece pressed on one side, far away from the inner wall, of the inner edge, and the first support piece is abutted to the side frame body of the magnetic frame. Through the setting of first piece, make and go up the sound membrane and obtained better support, make the connection between sound membrane and the inner wall more firm, simultaneously, strengthened the leakproofness of going up sound membrane and side frame body junction.

Description

Loudspeaker

[ technical field ] A method for producing a semiconductor device

The invention relates to the field of electroacoustic conversion, in particular to a loudspeaker.

[ background of the invention ]

With the development of science and technology, more and more electronic devices are equipped with sound generating devices. Generally, the loudspeaker can provide even strong magnetic field through the magnet steel, makes the voice coil loudspeaker voice coil that leads to alternating current vibrate in even strong magnetic field, and the voice coil loudspeaker voice coil drives the vibrating diaphragm vibration and makes the loudspeaker produce sound.

The loudspeaker in the prior art generally bonds the sound film on the basin frame and the framework respectively, but in the process of loudspeaker assembly and vibration sounding, the sound film is easy to be bonded with the basin frame and the framework, and further the acoustic performance of the loudspeaker is influenced.

Therefore, there is a need to provide a new technical solution to improve the above problems.

[ summary of the invention ]

The invention aims to provide a loudspeaker, which comprises a first support piece which is pressed on the inner edge of an upper sound film and is abutted with a side frame body of a magnetic frame, thereby improving the stability of the loudspeaker structure.

The technical scheme of the invention is as follows: a speaker, the speaker comprising: the basin stand is provided with an accommodating space, and a magnetic circuit system and a vibration system are arranged in the accommodating space;

the vibration system comprises an upper sound film which is fixed on the basin frame and used for vibrating and sounding, the basin frame comprises a bottom wall positioned in the middle position, an outer wall which is bent and extended from the edge of the bottom wall towards the upper sound film, and an inner wall which is extended from the bottom wall towards the surface of the accommodating space towards the upper sound film, the inner wall and the outer wall are arranged at intervals, the inner wall is enclosed into a first accommodating space, and the magnetic circuit system is accommodated in the first accommodating space;

the magnetic circuit system comprises a magnetic frame fixed on the inner wall and a magnetic steel assembly fixed in the magnetic frame, the magnetic frame comprises a lower frame body fixedly connected with the magnetic steel assembly and a side frame body bent and extended from the edge of the lower frame body towards the upper sound film, and the projection of one end of the inner wall, which is far away from the bottom wall, along the vertical vibration direction is positioned on the side frame body;

go up the sound membrane and be cyclic annular, go up the sound membrane including being fixed in the inner wall is kept away from the inward flange of diapire one end and being fixed in the outward flange of outer wall, the speaker is still including pressing and locating the inward flange is kept away from the first piece of inner wall one side, first piece butt in the side frame body.

Preferably, the upper sound diaphragm further includes a vibrating portion disposed around the inner edge and the outer edge, and the vibrating portion protrudes away from the bottom wall.

Preferably, the first support piece is annular, and the first support piece is arranged around the side frame body.

Preferably, the magnetic frame and the magnetic steel component are arranged at intervals to form a magnetic gap, the vibration system further comprises a voice coil arranged in the magnetic gap and used for driving the upper voice diaphragm to vibrate and sound and a framework for fixing the voice coil on the upper voice diaphragm, the framework comprises a supporting platform fixedly connected with the upper sound film and a plurality of first supporting pieces which extend from the supporting platform to the direction far away from the upper sound film and are mutually spaced, the plurality of first supporting pieces are annularly arranged outside the bottom wall and the magnetic frame at intervals, the frame further comprises a second support piece extending from the first support piece towards the inner wall and the magnetic frame, the inner wall is provided with a fracture corresponding to the second support sheet, the magnetic frame is provided with a abdication groove corresponding to the fracture, the second support sheet penetrates through the fracture and the abdicating groove to suspend the voice coil in the magnetic gap.

Preferably, the basin stand further comprises a folded edge which is bent from one end, far away from the bottom wall, of the outer wall to the position far away from the containing space, and the outer edge of the upper sound film is fixed on the folded edge.

Preferably, the upper sound film comprises a first upper sound film fixed on the inner wall and a second upper sound film fixed on the flange, the first upper sound film and the second upper sound film are both annular and arranged at intervals, the inner edge and the outer edge of the first upper sound film are respectively fixed on the inner wall and the support table, and the inner edge and the outer edge of the second upper sound film are respectively fixed on the support table and the flange.

Preferably, the loudspeaker further comprises a lower sound film arranged at an interval with the upper sound film, and the lower sound film comprises a first fixing part fixedly connected with the first supporting sheet, a second fixing part fixedly connected with the basin frame and a middle part connected with the first fixing part and the second fixing part.

Preferably, the outer wall includes a first outer wall extending from the edge of the bottom wall toward the upper sound membrane in a bending manner, and a second outer wall extending from one end of the first outer wall far away from the bottom wall to the direction far away from the accommodating space, and the second fixing portion is fixedly connected to the second outer wall.

Preferably, the outer wall further includes a third outer wall extending from an end of the second outer wall far away from the first outer wall toward the upper sound diaphragm, and the folded edge is formed by bending from an end of the third outer wall far away from the bottom wall toward a position away from the accommodating space.

Preferably, the side frame body is provided with a clamping hole, one side of the inner wall close to the magnetic frame is correspondingly provided with a buckle, and the buckle is clamped with the clamping hole to fix the magnetic frame on the basin frame.

The invention has the beneficial effects that: there is provided a speaker including: the basin stand is provided with an accommodating space, and a magnetic circuit system and a vibration system are arranged in the accommodating space; the basin frame comprises a bottom wall, an inner wall and an outer wall, wherein the inner wall and the outer wall extend to an upper sound film from the edge of the bottom wall, the inner wall and the outer wall are arranged at intervals, the inner wall encloses a first accommodating space for accommodating a magnetic circuit system, a magnetic frame of the magnetic circuit system comprises a lower frame body fixedly connected with a magnetic steel component and a side frame body which is bent and extends from the edge of the lower frame body towards the upper sound film, and the projection of one end, far away from the bottom wall, of the inner wall along the vertical vibration direction is positioned on the side frame; the upper sound film of the vibration system is annular, the inner edge of the upper sound film is fixed at one end, far away from the bottom wall, of the inner wall, the outer edge of the upper sound film is fixed at the outer wall, the loudspeaker further comprises a first support piece arranged on one side, far away from the inner wall, of the inner edge in a pressing mode, and the first support piece abuts against the side frame body. Through the setting of first piece, make and go up the sound membrane and obtained better support, make the connection between sound membrane and the inner wall more firm, simultaneously, strengthened the leakproofness of going up sound membrane and side frame body junction.

[ description of the drawings ]

Fig. 1 is an exploded schematic view of a speaker provided in an embodiment of the present invention;

fig. 2 is a schematic perspective view of a speaker according to an embodiment of the present invention;

fig. 3 is a schematic diagram of the structure of the upper sound film in the speaker provided in the embodiment of fig. 1 according to the present invention;

fig. 4 is a schematic structural diagram of a frame in the loudspeaker provided in the embodiment of fig. 1 according to the present invention;

FIG. 5 is a top view of the basin stand of FIG. 4 in accordance with the present invention;

fig. 6 is a schematic structural diagram of the magnetic circuit system and the voice coil matching in the speaker provided by the embodiment of the present invention;

fig. 7 is a schematic structural diagram of the magnetic circuit system, the voice coil and the bobbin in the loudspeaker provided by the embodiment of the invention;

FIG. 8 is a schematic sectional view of the speaker of FIG. 2 taken along the line A-A;

fig. 9 is a schematic structural diagram of a lower sound film in the speaker provided in the embodiment of fig. 1.

Reference numerals: 100. a speaker; 1. a basin stand; 11. a bottom wall; 12. an inner wall; 121. breaking off; 13. an outer wall; 131. a first outer wall; 132. a second outer wall; 133. a third outer wall; 14. folding edges; 15. buckling; 16. a first accommodating space; 2. a magnetic circuit system; 21. a magnetic frame; 211. a lower frame body; 212. a side frame body; 213. a yielding groove; 214. a clamping hole; 22. a magnetic steel component; 221. magnetic steel; 222. a pole piece; 23. a magnetic gap; 3. a vibration system; 31. a voice coil; 311. a voice coil body; 312. a support transmission member; 32. a framework; 321. a support table; 322. a first support sheet; 323. a second support sheet; 33. an upper sound film; 331. an inner edge; 332. an outer edge; 333. a vibrating section; 334. a first upper sound diaphragm; 335. a second upper sound diaphragm; 34. a first support sheet; 35. a lower sound film; 351. a first fixed part; 352. a second fixed part; 353. an intermediate portion; 36. a second support.

[ detailed description ] embodiments

The invention is further described with reference to the following figures and embodiments.

Referring to fig. 1, fig. 2 and fig. 8, which show a speaker according to an embodiment of the present invention, fig. 1 is an exploded schematic view of the speaker according to the embodiment of the present invention, fig. 2 is a schematic view of a three-dimensional structure of the speaker according to the embodiment of the present invention, and fig. 8 is a schematic view of a cross-sectional structure of the speaker according to the embodiment of the present invention along a-a direction. The loudspeaker 100 comprises a frame 1 with an accommodating space, and a magnetic circuit system 2 and a vibration system 3 which are arranged in the accommodating space of the frame 1, wherein the magnetic circuit system 2 is used for generating a magnetic field to drive the vibration system 3 to vibrate and produce sound. The vibration system 3 comprises an upper sound film 33 fixed on the basin frame 1 and used for vibrating and sounding, the basin frame 1 comprises a bottom wall 11 located at the middle position, an outer wall 13 extending from the edge of the bottom wall 11 towards the upper sound film 33 in a bending mode, and an inner wall 12 extending from the bottom wall 11 towards the upper sound film 33 on the surface of the accommodating space, the inner wall 12 and the outer wall 13 are arranged at intervals, the inner wall 12 is enclosed into a first accommodating space, and the magnetic circuit system 2 is accommodated in the first accommodating space 16; the magnetic circuit system 2 includes a magnetic frame 21 fixed on the inner wall 12 and a magnetic steel assembly 22 fixed in the magnetic frame 21, the magnetic frame 21 includes a lower frame 211 fixedly connected to the magnetic steel assembly 22 and a side frame 212 extending from the edge of the lower frame 211 toward the upper sound diaphragm 33, and a projection of one end of the inner wall 12 away from the bottom wall 11 along a vertical vibration direction is located on the side frame 212. The side frame 212 vibrates in a direction perpendicular to the upper sound film 33, and drives the upper sound film 33 connected to the side frame 212 to vibrate, so that the speaker 100 emits sound. In the present embodiment, the first support piece 34 is provided to enhance the support of the inner edge 321 of the upper sound diaphragm 33 and the inner wall 12, and at the same time, one end of the inner edge 331 of the upper sound diaphragm 33 away from the inner wall and the inner side of the first support piece 34 are both abutted to the side frame body 212, so that the sealing property at the joint of the inner edge 331 of the upper sound diaphragm 33 and the side frame body 212 can be ensured by bonding between the first support piece 34 and the side frame body 212.

In an alternative embodiment, referring to fig. 1 and 3, the upper sound diaphragm 33 is annular, the upper sound diaphragm 33 includes an inner edge 331 fixed to an end of the inner wall 12 away from the bottom wall 11, an outer edge 332 fixed to the outer wall 13, and a vibrating portion 333 disposed between the inner edge 331 and the outer edge 332, and the vibrating portion 333 protrudes away from the bottom wall 11.

In an alternative embodiment, referring to fig. 1 and fig. 2, the speaker 100 further includes a first support piece 34 pressed on a side of the inner edge 331 of the upper sound diaphragm 33 away from the inner wall 12, and the first support piece 34 abuts against the side frame 212.

In an alternative embodiment, referring to fig. 1, 2 and 6, the magnetic steel assembly 22 includes two circular magnetic steels 221 and a circular pole core 222 disposed between the two magnetic steels 221, so that the whole magnetic steel assembly 22 is a cylindrical body, the lower frame body 211 of the magnetic frame 21 is a circular frame body connected to the magnetic steel assembly 22, and the side frame body 212 is bent from the edge of the lower frame body 211 to the upper sound film 33, and surrounds the magnetic steel assembly 22 to be circular. The first support piece 34 is annular and is disposed around the side frame 212, and the inner side of the first support piece 34 abuts against the side frame 212. In the present embodiment, the first support piece 34 is provided to enhance the support of the upper sound diaphragm 33, and at the same time, the inner sides of the upper sound diaphragm 33 and the first support piece 34 are in contact with the side frame body 212 of the magnetic frame 21, so that the first support piece 34 and the side frame body 212 can be bonded to each other to ensure the sealing property at the joint of the first sound diaphragm 33 and the magnetic frame 21. The first support piece 34 is arranged to firmly bond the upper sound film 33 with the inner wall 12 of the frame 1 and the side frame body 212 of the magnetic circuit system 2.

Referring to fig. 1, 6, 7 and 8, a gap is formed between the side frame 212 and the magnetic steel assembly 22, the gap is a magnetic gap 23 between the magnetic frame 21 and the magnetic steel assembly 22, and the magnetic gap 23 has an annular cylindrical shape. The vibration system 3 further includes a voice coil 31 disposed in the magnetic gap 23 for driving the upper diaphragm 33 to vibrate and generate sound and a framework 32 for fixing the voice coil 31 to the upper diaphragm 33, the framework 32 includes a support 321 fixedly connected to the upper diaphragm 33 and a plurality of first support pieces 322 extending from the support 321 to a direction away from the upper diaphragm 33 and spaced from each other, the plurality of first support pieces 322 are annularly disposed outside the bottom wall 11 and the magnetic frame 21, the framework 32 further includes a second support piece 233 extending from the first support piece 322 toward the inner wall 12 and the magnetic frame 21, the inner wall 12 is provided with a fracture 121 corresponding to the second support piece 323, the magnetic frame 21 is provided with a yielding slot 213 corresponding to the fracture 121, and the second support piece 323 passes through the fracture 121 and the yielding slot 213 to suspend the voice coil 33 in the magnetic gap 16.

Referring to fig. 1, fig. 2 and fig. 8, the upper sound diaphragm 33 includes a first upper sound diaphragm 334 fixed on the inner wall 12 and a second upper sound diaphragm 335 fixed on the outer wall 13, and the first upper sound diaphragm 334 and the second upper sound diaphragm 335 are both annular and spaced apart from each other, and each have an inner edge 331, an outer edge 332 and a vibrating portion 333 protruding away from the bottom wall 11. The inner and outer edges of the first upper diaphragm 334 are fixed to the inner wall and the support base, respectively, and the inner and outer edges of the second upper diaphragm 335 are fixed to the support base 321 and the outer wall 13, respectively. When the voice coil 31 receives the electrical signal, it generates vibration in the direction perpendicular to the upper diaphragm 33 under the action of the magnetic field formed in the magnetic gap 16, and drives the magnetic frame 21 to vibrate in the direction perpendicular to the upper diaphragm 33, and also drives the bobbin 32 coupled to the voice coil 31 to vibrate in the direction perpendicular to the upper diaphragm 33, and the first upper diaphragm 331 and the second upper diaphragm 332 vibrate through the vibration of the side frame 212 and the bobbin 32 of the magnetic frame 21, so that the speaker 100 makes a sound. In the present embodiment, the first support piece 34 is provided to enhance the support of the first upper sound diaphragm 334, and at the same time, the first upper sound diaphragm 334 and the inner edge 331 of the first support piece 34 are both abutted to the side frame body 212, so that the sealing property at the joint between the first upper sound diaphragm 334 and the side frame body 212 can be ensured by bonding between the first support piece 34 and the side frame body 221. Further, due to the existence of the fracture 121, the bonding surface of the inner wall 12 and the first upper sound film 334 is interrupted by the fracture 121 to be discontinuous, and the first support piece 34 enables the first upper sound film 334 to be bonded with the inner wall 12 of the frame 1 more firmly.

In an alternative embodiment, the support base 321 is circular, and the first support piece 322 extends from the support base 321 in a direction parallel to the vibration direction and away from the upper sound diaphragm 33. First supporting piece 322 includes threely, and first supporting piece 322 is the arc, and equidistant setting of three first supporting piece 322, three curved first supporting piece 322 evenly interval distribution in this circumference of propping up supporting bench 321, and the bottom of three first supporting piece 322 forms a discontinuous annular face. The second support pieces 323 correspond to the first support pieces 322 one by one, and extend from one end of the first support piece 322 toward the middle magnetic frame 21. Correspondingly, in order to facilitate the joint of the second supporting piece 323 and the voice coil 31 in the magnetic frame 21, the fracture 121 on the inner wall 12 is elongated, and divides the inner wall 12 into 3 pieces arranged at intervals, meanwhile, the 2 frame body 212 is provided with a relief groove 213 corresponding to the fracture 121, the relief groove 211 is also elongated, and extends in a direction perpendicular to the upper sound film 33, and the second supporting piece 323 sequentially passes through the fracture 121 and the relief groove 213 and then extends to the magnetic gap 23, so that the voice coil 31 is suspended in the magnetic gap 23.

In an alternative embodiment, referring to fig. 1, 6 and 7, the voice coil 31 includes a ring-shaped voice coil body 311 and two coils 312 extending from the bottom of the voice coil body 311 to the support stage 321 along the second support plate 323. The voice coil body 311 is disposed around the magnetic steel assembly 22, suspended in the magnetic gap 23 by the bobbin 32, and connected to an external current through a coil 312 extending to the support base. In this embodiment, two coils 312 are provided, and may sequentially extend through the avoiding groove 213 and the fracture 121 along any two second supporting pieces 323.

In an alternative embodiment, referring to fig. 1, 4 and 5, the outer wall 13 includes a first outer wall 131 extending from the edge of the bottom wall 11 toward the upper sound diaphragm 33, a second outer wall 132 extending from an end of the first outer wall 131 away from the bottom wall 11 in a direction away from the receiving space, a third outer wall 133 extending from an end of the second outer wall 132 away from the first outer wall 131 toward the upper sound diaphragm 33, and a folded edge 14 extending from an end of the third outer wall 133 away from the bottom wall 11 in a direction away from the receiving space, wherein an outer edge of the upper sound diaphragm 33 (or the second upper sound diaphragm 332) is fixed to the folded edge 14.

As shown in fig. 1, 8 and 9, in order to increase the performance of the speaker 100, a lower sound film 35 is further disposed at the bottom of the first supporting piece 321 of the framework 32, the lower sound film 35 includes a first fixing portion 351 fixedly connected to the first supporting piece 322, a second fixing portion 352 fixedly connected to the frame 1, and an intermediate portion 353 connecting the first fixing portion 351 and the second fixing portion 352, and the intermediate portion 353 is recessed away from the upper sound film 33. The first fixing portion 351 of the lower sound diaphragm 35 is bonded to the discontinuous annular surface. Further, the second outer wall 132 of the frame 1 extends circumferentially toward the housing space, and the second fixing portion 352 of the lower sound diaphragm 35 is bonded to the second outer wall 132. In order to bond the lower sound diaphragm 35 more firmly, the second support piece 36 may be provided on a discontinuous annular surface formed at the bottom of the plurality of first support pieces 322, and the first fixing portion 351 of the lower sound diaphragm 35 may be bonded to the second support piece 36. Similarly, when the voice coil 31 receives an electric signal, it vibrates under the action of the magnetic field formed in the magnetic gap, and drives the bobbin 32 coupled thereto to vibrate, and the upper and

lower sound diaphragms

33 and 35 vibrate by the vibration of the bobbin 32, so that the speaker 100 emits a sound.

In an alternative embodiment, referring to fig. 4 and 5, in order to enhance the connection and fixation between the magnetic circuit system 2 and the basin stand 1, further, a plurality of fasteners 16 are uniformly disposed on a surface of the inner wall 12 close to the side frame 212, corresponding fastening holes 214 are disposed on a side wall of the side frame 212, and the fasteners 16 are fastened with the fastening holes 214 to reinforce the connection and fixation between the side frame 212 and the inner wall 12. In addition, the inner wall 12 and the side frame 212 can be further provided with other detachable fixed connections so as to facilitate the installation and detachment of the magnetic circuit system 2 and enhance the connection and fixation of the magnetic circuit system 2 and the basin stand 1.

Through the setting, the installation and the connection among the magnetic circuit system 2, the vibration system 3 and the basin frame 1 three are more compact and firm, so that the magnetic circuit system 2 drives the vibration system 3 more directly, and the vibration of the vibration system 3 is effectively promoted.

While the foregoing is directed to embodiments of the present invention, it will be understood by those skilled in the art that various changes may be made without departing from the spirit and scope of the invention.

Claims

1. A loudspeaker, characterized in that the loudspeaker comprises: the basin stand is provided with an accommodating space, and a magnetic circuit system and a vibration system are arranged in the accommodating space;

the magnetic circuit system comprises a magnetic frame fixed on the inner wall and a magnetic steel assembly fixed in the magnetic frame, the magnetic frame comprises a lower frame body fixedly connected with the magnetic steel assembly and a side frame body bent and extended from the edge of the lower frame body towards the upper sound film, and the projection of one end, far away from the bottom wall, of the inner wall along the vertical vibration direction is positioned on the side frame body;

2. The loudspeaker of claim 1 wherein said upper diaphragm further includes a vibrating portion disposed around said inner edge and said outer edge, said vibrating portion projecting away from said bottom wall.

3. The loudspeaker of claim 1, wherein the first leg is annular and the first leg is disposed around the side frame.

4. The loudspeaker of claim 1, wherein said magnetic frame is spaced from said magnetic steel assembly to form a magnetic gap, the vibration system also comprises a voice coil arranged in the magnetic gap and used for driving the upper voice film to vibrate and sound and a framework for fixing the voice coil on the upper voice film, the framework comprises a supporting platform fixedly connected with the upper sound film and a plurality of first supporting pieces which extend from the supporting platform to the direction far away from the upper sound film and are mutually spaced, the plurality of first supporting pieces are annularly arranged outside the bottom wall and the magnetic frame at intervals, the frame further comprises a second support piece extending from the first support piece towards the inner wall and the magnetic frame, the inner wall is provided with a fracture corresponding to the second support sheet, the magnetic frame is provided with a abdication groove corresponding to the fracture, the second support sheet penetrates through the fracture and the abdicating groove to suspend the voice coil in the magnetic gap.

5. The speaker according to claim 4, wherein the frame further includes a folded edge that is folded from an end of the outer wall away from the bottom wall toward a position away from the receiving space, and an outer edge of the upper acoustic membrane is fixed to the folded edge.

6. The loudspeaker of claim 5, wherein the upper sound film comprises a first upper sound film fixed to the inner wall and a second upper sound film fixed to the flange, the first upper sound film and the second upper sound film are both annular and spaced apart, an inner edge and an outer edge of the first upper sound film are fixed to the inner wall and the support base, respectively, and an inner edge and an outer edge of the second upper sound film are fixed to the support base and the flange, respectively.

7. The speaker of claim 5, further comprising a lower diaphragm spaced from the upper diaphragm, the lower diaphragm including a first fixed portion fixedly connected to the first support piece, a second fixed portion fixedly connected to the frame, and an intermediate portion connecting the first fixed portion and the second fixed portion.

8. The loudspeaker of claim 7, wherein the outer wall includes a first outer wall extending from the edge of the bottom wall toward the upper sound film, and a second outer wall extending from an end of the first outer wall away from the bottom wall toward the receiving space, and the second fixing portion is fixedly connected to the second outer wall.

9. The loudspeaker of claim 8,

the outer wall further comprises a third outer wall extending from one end, far away from the first outer wall, of the second outer wall to the upper sound film, and the folded edge is formed by bending from one end, far away from the bottom wall, of the third outer wall to the position far away from the accommodating space.

10. The loudspeaker of claim 1, wherein the side frame body is provided with a clamping hole, one side of the inner wall close to the magnetic frame is correspondingly provided with a buckle, and the buckle is clamped with the clamping hole to fix the magnetic frame on the basin frame.