CN112243186A

CN112243186A - Loudspeaker

Info

Publication number: CN112243186A
Application number: CN202011341855.2A
Authority: CN
Inventors: 钟柳强; 陆前
Original assignee: Guoguang Electric Co Ltd
Current assignee: Guoguang Electric Co Ltd
Priority date: 2020-11-25
Filing date: 2020-11-25
Publication date: 2021-01-19
Anticipated expiration: 2040-11-25
Also published as: CN112243186B

Abstract

The invention belongs to the technical field of electroacoustic, and discloses a loudspeaker which comprises a magnetic circuit assembly, a vibration assembly and a basin frame, wherein the magnetic circuit assembly comprises a magnetic conductor, magnetic steel and a magnetic conducting sheet, a containing cavity is arranged in a magnetic conducting bowl, a bottom groove is formed in the bottom wall of the containing cavity, the magnetic steel is provided with a first through hole, the magnetic conducting sheet is provided with a second through hole, the magnetic steel and the magnetic conducting sheet are sequentially stacked on the bottom wall of the containing cavity, the first through hole is communicated with the second through hole and the bottom groove, and a gap is formed between the magnetic steel and the magnetic conducting sheet and the side wall of the containing; the vibration assembly comprises a voice coil and a vibration film, the vibration film is covered at one end of the voice coil, a winding is arranged at one end of the voice coil, which is far away from the vibration film, and the end of the voice coil, which is provided with the winding, can be inserted into the gap in a vertically moving mode; the basin frame is used for connecting the magnetic conduction bowl and the vibration assembly. The loudspeaker of the invention has simple structure, and can reduce the heating temperature of the voice coil, thereby increasing the bearing power of the loudspeaker.

Description

Loudspeaker

Technical Field

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

Background

The bearing power of the loudspeaker determines the tone quality and loudness of the loudspeaker, but the magnitude of the current bearing capacity of the voice coil directly determines the power of the loudspeaker, and meanwhile, the heat dissipation performance of the loudspeaker also influences the power design of the loudspeaker. To current prior art's speaker, the coil on the voice coil loudspeaker voice coil adopts the copper line mostly, and the heat that the copper line on the voice coil loudspeaker voice coil produced can not effectual and external heat exchange to lead to the bearing capacity of speaker to receive the restriction.

Disclosure of Invention

The invention aims to provide a loudspeaker, which solves the problems that the loudspeaker cannot effectively exchange heat with the outside and the bearing power of the loudspeaker is limited.

In order to achieve the purpose, the invention adopts the following technical scheme:

a loudspeaker, comprising:

the magnetic circuit component comprises a magnetic conduction bowl, magnetic steel and a magnetic conduction sheet, wherein the magnetic conduction bowl is provided with an accommodating cavity, the bottom wall of the accommodating cavity is provided with a bottom groove, the magnetic steel is provided with a first through hole, the magnetic conduction sheet is provided with a second through hole, the magnetic steel and the magnetic conduction sheet are sequentially stacked on the bottom wall of the accommodating cavity, the first through hole is communicated with the second through hole and the bottom groove, and gaps are formed between the magnetic steel and the side wall of the accommodating cavity;

the vibration assembly comprises a voice coil and a vibration film, the vibration film is covered at one end of the voice coil, a winding is arranged at one end, far away from the vibration film, of the voice coil, and one end, provided with the winding, of the voice coil is inserted into the gap in a vertically movable mode;

and the basin frame is used for connecting the magnetic conduction bowl and the vibration assembly.

Preferably, the side wall of the accommodating cavity is provided with a side groove, one end of the side groove is communicated with the bottom groove, and the other end of the side groove extends to the upper end of the side wall of the accommodating cavity.

Preferably, the side grooves are uniformly arranged along the circumferential direction of the magnetic conduction bowl at intervals, and the side grooves are communicated with the bottom groove.

Preferably, the bottom groove includes a first annular groove, and the first annular groove communicates with each of the side grooves.

Preferably, the bottom groove further comprises a second groove, and two ends of the second groove are respectively communicated with the first groove.

Preferably, the number of the first through holes and the number of the second through holes are more than one, and each first through hole is communicated with one second through hole.

Preferably, the first through holes are uniformly distributed on the magnetic steel, and the second through holes are uniformly distributed on the magnetic conductive sheet.

Preferably, the vibration assembly further comprises a folding ring, the folding ring is provided with a first folding edge and a second folding edge, the first folding edge is fixedly connected with the upper end face of the basin frame, and the second folding edge is fixedly connected with the vibration membrane.

Preferably, the vibration assembly further comprises a positioning support piece, the voice coil is fixedly connected with the positioning support piece, the positioning support piece is further fixedly connected with the basin frame, the basin frame is located along the vertical direction between the folding ring and the magnetic conduction bowl, and a plurality of third through holes are formed in the side wall of the basin frame.

Preferably, a fourth through hole is formed in the basin frame, a convex column is arranged on the magnetic conduction bowl, and the convex column is inserted into the fourth through hole and is abutted against the basin frame.

The invention has the beneficial effects that:

the invention provides a loudspeaker, which comprises a magnetic circuit assembly, a vibration assembly and a basin frame, wherein the magnetic circuit assembly comprises a magnetic conduction bowl, magnetic steel and a magnetic conduction sheet, the magnetic conduction bowl is provided with an accommodating cavity, the bottom wall of the accommodating cavity is provided with a bottom groove, the magnetic steel is provided with a first through hole, the magnetic conduction sheet is provided with a second through hole, the magnetic steel and the magnetic conduction sheet are sequentially stacked on the bottom wall of the accommodating cavity, the first through hole is communicated with the second through hole and the bottom groove, and a gap is formed between the magnetic steel and the magnetic conduction sheet and the side wall of the accommodating cavity; the vibration assembly comprises a voice coil and a vibration film, the vibration film is covered at one end of the voice coil, a winding is arranged at one end of the voice coil, which is far away from the vibration film, and the end of the voice coil, which is provided with the winding, can be inserted into the gap in a vertically moving mode; the basin frame is used for connecting the magnetic conduction bowl and the vibration assembly. Through setting up the kerve at the diapire that holds the chamber, be equipped with first through-hole on the magnet steel, be equipped with the second through-hole on the magnetic conduction piece, first through-hole communicates in the second through-hole and communicates in the kerve, can insert to locate in the clearance through being provided with wire-wound one end on the voice coil loudspeaker voice coil with reciprocating, can make the air current that flows in the second through-hole flow in the kerve that holds the chamber diapire through first through-hole, and then form the clearance outflow between magnet steel and magnetic conduction piece and the lateral wall that holds the chamber, can realize carrying out the heat exchange with external intercommunication, thereby reduce the temperature of voice coil loudspeaker voice coil, improve the power of bearing of speaker.

Drawings

FIG. 1 is a front view of the speaker of the present invention;

FIG. 2 is a top view of the speaker of the present invention;

fig. 3 is a cross-sectional view of a speaker of the present invention;

fig. 4 is an exploded view of the speaker of the present invention;

fig. 5 is a schematic structural view of a second groove formed in a magnetic conductive bowl of the loudspeaker according to the present invention;

FIG. 6 is a schematic structural diagram of a speaker according to the present invention, wherein a plurality of first through holes are disposed on the magnetic steel;

FIG. 7 is a schematic structural diagram of a speaker according to the present invention, wherein a plurality of second through holes are disposed on a magnetic conductive sheet;

fig. 8 is a schematic view of a partial structure of the speaker of the present invention.

In the figure:

in the figure:

1-magnetic conduction bowl; 11-a bottom groove; 111-a first recess; 112-a second groove; 12-side groove; 13-convex column;

2-magnetic steel; 21-a first via;

3-magnetic conductive sheet; 31-a second via;

4-a voice coil; 41-winding; 42-positioning the supporting sheet;

5-a basin stand; 51-a third via; 52-fourth via; 53-jack;

6-folding ring; 61-first hem; 62-second hem;

7-a vibrating membrane;

8-a connection terminal; 81-inserting columns.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "right", etc. are used in an orientation or positional relationship based on that shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.

The invention provides a loudspeaker, as shown in fig. 3, 4 and 8, the loudspeaker comprises a magnetic circuit assembly, a vibration assembly and a basin frame 5, the magnetic circuit assembly comprises a magnetic conduction bowl 1, a magnetic steel 2 and a magnetic conduction sheet 3, the magnetic conduction bowl 1 is provided with an accommodating cavity, the bottom of the accommodating cavity is provided with a bottom groove 11, the magnetic steel 2 is provided with a first through hole 21, the magnetic conduction sheet 3 is provided with a second through hole 31, the magnetic steel 2 and the magnetic conduction sheet 3 are sequentially stacked at the bottom of the accommodating cavity, the first through hole 21 is communicated with the second through hole 31 and communicated with the bottom groove 11, and gaps are formed between the magnetic steel 2 and the magnetic conduction sheet 3 and the side wall of the accommodating cavity; the vibration assembly comprises a voice coil 4 and a vibration membrane 7, the vibration membrane 7 is covered at one end of the voice coil 4, a winding 41 is arranged at one end, far away from the vibration membrane 7, of the voice coil 4, and one end, provided with the winding 41, of the voice coil 4 is inserted into the gap in a vertically movable mode; the basin frame 5 is used for connecting the magnetic conduction bowl 1 and the vibration assembly. The bottom groove 11 is arranged on the bottom wall of the accommodating cavity, the first through hole 21 is arranged on the magnetic steel 2, the second through hole 31 is arranged on the magnetic conductive sheet 3, the first through hole 21 is communicated with the second through hole 31 and the bottom groove 11, and the end, provided with the winding 41, of the voice coil 4 is inserted into the gap in a vertically movable manner, so that the airflow flowing into the second through hole 31 flows into the bottom groove 11 on the bottom wall of the accommodating cavity through the first through hole 21, and further flows out from the magnetic steel 2 and the gap formed between the magnetic conductive sheet 3 and the side wall of the accommodating cavity; in addition, external air current also can flow into to the kerve 11 that holds the chamber diapire by the clearance that voice coil loudspeaker voice coil 4 and magnet steel 2 and magnetic conductive plate 3 formed, and then form the clearance from magnet steel 2 and magnetic conductive plate 3 and hold between the lateral wall in chamber and flow out, (the air current flow direction is like the direction that the arrow indicates in figure 8), can realize carrying out the heat exchange with external intercommunication to reduce voice coil loudspeaker voice coil 4's temperature, improve the power that bears of speaker, simple structure.

Alternatively, as shown in fig. 3, 4 and 8, the side wall of the accommodating chamber is provided with a side groove 12, one end of the side groove 12 is communicated with the bottom groove 11, and the other end extends to the upper end of the side wall of the accommodating chamber. Through setting up side groove 12 at the lateral wall that holds the chamber, the diapire that holds the chamber is provided with kerve 11, be equipped with first through-hole 21 on magnet steel 2, be equipped with second through-hole 31 on the magnetic conduction piece 3, first through-hole 21 communicates in second through-hole 31 and communicates in kerve 11, make the air current that flows into second through-hole 31 flow in the kerve 11 that holds the chamber diapire through first through-hole 21, and then make the air current that flows into kerve 11 flow out from side groove 12, the one end that is provided with wire winding 41 on voice coil loudspeaker voice coil 4 can insert with reciprocating and locate in the clearance, side groove 12 can further increase and carry out the space of heat exchange with external intercommunication, thereby the air current that flows out from side groove 12 can reduce voice coil loudspeaker voice coil 4's temperature more effectively, and then increase speaker.

Optionally, as shown in fig. 3, 4 and 8, a plurality of side grooves 12 are uniformly arranged at intervals along the circumferential direction of the magnetic conduction bowl 1, and the plurality of side grooves 12 are all communicated with the bottom groove 11. The plurality of side grooves 12 are uniformly arranged at intervals along the circumferential direction of the magnetic conduction bowl 1, the plurality of side grooves 12 are all communicated with the bottom groove 11, and the airflow flowing into the second through hole 31 can be ensured to effectively flow into the side grooves 12 through the bottom groove 11, so that the heating temperature of the winding 41 is reduced by the airflow flowing into the side grooves 12, and the bearing power of the loudspeaker is increased; meanwhile, a plurality of side grooves 12 are uniformly arranged along the circumferential direction of the magnetic conduction bowl 1 at intervals, so that the winding 41 on the whole voice coil 4 can be uniformly radiated.

Alternatively, as shown in fig. 3 and 4, the bottom tank 11 includes a second groove 112, and both ends of the second groove 112 are respectively communicated with the first grooves 111. Through setting up the both ends of second recess 112 and communicating with first recess 111 respectively, can guarantee that the air current that flows into second recess 112 flows into side groove 12 through first recess 111 effectively to guarantee that the air current that flows into side groove 12 reduces the temperature of wire 41 in order to increase the bearing power of speaker, it can be understood that the air current homoenergetic that flows into side groove 12 flows into and forms the clearance between magnetic conductive plate 3 and the lateral wall that holds the chamber. Preferably, two second grooves 112 are formed in the bottom wall of the accommodating cavity, and four side grooves 12 are uniformly and alternately formed in the side wall of the accommodating cavity. In other embodiments, as shown in fig. 5, a second recess 112 is provided in the bottom wall of the receiving chamber and two side grooves 12 are provided in the side walls of the receiving chamber.

Alternatively, as shown in fig. 3, 5 and 8, the bottom groove 11 includes a first groove 111 having an annular shape, and the first groove 111 communicates with each of the side grooves 12. By providing the first groove 111 on the bottom wall of the accommodating cavity, the first groove 111 communicates with the side slots 12, and the two ends of the second groove 112 communicate with the first groove 111, respectively, it can be understood that the first groove 111 communicates with the second groove 112 and communicates with the side slots 12, thereby ensuring that the air flowing into the second through hole 31 effectively contacts with the winding 41 to reduce the temperature of the winding 41. Specifically, when the speaker is powered on, the second groove 112 connects the first groove 111 with the side groove 12, and the airflow flowing into the second through hole 31 sequentially flows through the first through hole 21, the second groove 112, the first groove 111 and the side groove 12, and is finally connected with the outside, so that the temperature of the winding wire 41 is effectively reduced, and the power of the speaker is improved. In other embodiments, the shape of the first groove 111, the second groove 112 and the side groove 12 may also be changed according to actual conditions. Meanwhile, the first groove 111 is formed in the bottom wall of the accommodating cavity, so that the air flow flowing into the side groove 12 can be ensured to be more even, and the winding 41 can be ensured to be uniformly radiated.

Alternatively, as shown in fig. 4, 6 and 7, there are more than one first through holes 21 and one second through hole 31, and each first through hole 21 is communicated with one second through hole 31. More than one first through hole 21 is arranged on the magnetic steel 2, the corresponding number of second through holes 31 are arranged on the magnetic conducting sheet 3, and each first through hole 21 is communicated with one second through hole 31, so that the air flow flowing into the second through holes 31 can effectively flow into the second grooves 112 of the magnetic conducting bowl 1, further flow into the first grooves 111 and the side grooves 12 and finally be communicated with the outside, the temperature of the winding 41 is reduced, and the bearing power of the loudspeaker is improved; meanwhile, the number of the first through holes 21 and the number of the second through holes 31 are more than one, so that more air flows into the second through holes 31 and sequentially flows through the first through holes 21, the second grooves 112, the first grooves 111 and the side grooves 12, the temperature of the winding 41 is reduced better, and the bearing power of the loudspeaker is improved. In other embodiments, as shown in fig. 6 and 7, seven first through holes 21 are provided on the magnetic steel 2, and seven second through holes 31 are correspondingly provided on the magnetic conductive plate 3.

Alternatively, as shown in fig. 6 to 8, the plurality of first through holes 21 are uniformly distributed on the magnetic steel 2, and the plurality of second through holes 31 are uniformly distributed on the magnetic conductive plate 3. Through with a plurality of first through-holes 21 evenly distributed on magnet steel 2, a plurality of second through-holes 31 evenly distributed is on magnetic conductive plate 3, can guarantee the even inflow second recess 112 of the air current that flows into second through-hole 31 to guarantee that the air current that flows into clearance and side channel 12 flows more steadily, and then guarantee that the wire winding 41 heat dissipation is even. In other embodiments, when more than seven first through holes 21 are disposed on the magnetic steel 2, the more than seven first through holes 21 are uniformly distributed on the magnetic steel 2, the seven second through holes 31 are correspondingly disposed on the magnetic conductive plate 3, the seven second through holes 31 are uniformly distributed on the magnetic conductive plate 3, and the first through holes 21 are communicated with the second through holes 31, so as to ensure that the air flowing into the second through holes 31 uniformly flows into the second groove 112.

Optionally, as shown in fig. 1 to 4, the vibrating assembly further includes a folded ring 6, the folded ring 6 has a first folded edge 61 and a second folded edge 62, the first folded edge 61 is fixedly connected to the upper end surface of the tub frame 5, and the second folded edge 62 is fixedly connected to the vibrating membrane 7. When the loudspeaker is powered on, the winding 41 drives the vibrating membrane 7 to vibrate under the action of a magnetic field, the vibrating membrane 7 is fixedly connected with the second folding edge 62 of the folding ring 6, and the first folding edge 61 of the folding ring 6 is fixedly connected with the basin frame 5, so that the relative positions of the voice coil 4, the magnetic steel 2 and the magnetic conductive sheet 3 can be ensured not to deviate, the vibration position of the voice coil 4 under the action of the magnetic field is ensured not to deviate, and the voice coil 4 is further ensured to drive the vibrating membrane 7 to repeatedly vibrate and sound; specifically, an arc-shaped structure is formed between the first flange 61 and the second flange 62 of the edge 6, so that the edge 6 has a sufficient displacement amount during vibration to ensure the vibration stability of the voice coil 4. Preferably, the diaphragm 7 is a flat diaphragm. In other embodiments, the cone 5, the corrugated rim 6 and the diaphragm 7 may also change shape according to actual conditions.

Optionally, as shown in fig. 3, 4 and 8, the vibration assembly further includes a positioning support 42, the voice coil 4 is fixedly connected to the positioning support 42, the positioning support 42 is further fixedly connected to the basin frame 5, the basin frame 5 is located between the corrugated rim 6 and the magnetic conduction bowl 1 along the vertical direction, and the side wall of the basin frame 5 is provided with a plurality of third through holes 51. The positioning support piece 42 is fixedly connected with the voice coil 4, and then the positioning support piece 42 is fixedly connected with the basin frame 5, so that the voice coil 4 and the basin frame 5 are concentric, and the voice coil 4 is prevented from being deviated during vertical vibration; through being equipped with a plurality of third through holes 51 at the lateral wall of basin frame 5, third through hole 51 communicates in side groove 12 and communicates with the outside air, can realize that the air current that flows into second through hole 31 flows into side groove 12, finally flows out and circulates with the outside air from third through hole 51 to reduce the temperature of wire 41, improve the bearing capacity of speaker. Specifically, the airflow flowing into the second through hole 31 sequentially flows through the first through hole 21, the second groove 112, the first groove 111 and the side groove 12, and finally flows out through the third through hole 51 to circulate with the outside air, so that the temperature of the winding 41 on the voice coil 4 can be reduced, and the power of the speaker can be increased.

Optionally, as shown in fig. 3 and 4, a fourth through hole 52 is formed in the basin frame 5, a convex column 13 is formed on the magnetic conduction bowl 1, and the convex column 13 is inserted into the fourth through hole 52 and abuts against the basin frame 5. Through set up fourth through-hole 52 on basin frame 5, set up projection 13 on magnetic conduction bowl 1, projection 13 is pegged graft in fourth through-hole 52 in order to realize the installation cooperation of basin frame 5 with magnetic conduction bowl 1 to

projection

13 and 5 butts of basin frame can adopt other fixed connection modes such as glue adhesion to realize the fixed connection of basin frame 5 and magnetic conduction bowl 1 in the position of butt, and projection 13 can strengthen the joint strength of basin frame 5 of butt position with 5 butts of basin frame simultaneously.

As shown in fig. 1 and 4, the speaker further includes a connection terminal 8, the frame 5 is provided with a jack 53, and the connection terminal 8 is provided with a plug 81 inserted into the jack 53. Through the insertion hole 53 formed in the basin stand 5, the insertion post 81 of the connection terminal 8 is inserted into the insertion hole 53, so that the winding 41 is connected to the power supply through the connection terminal 8.

It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Numerous obvious variations, adaptations and substitutions will occur to those skilled in the art without departing from the scope of the invention. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A loudspeaker, comprising:

the magnetic circuit component comprises a magnetic conduction bowl (1), magnetic steel (2) and a magnetic conduction sheet (3), wherein the magnetic conduction bowl (1) is provided with an accommodating cavity, the bottom wall of the accommodating cavity is provided with a bottom groove (11), the magnetic steel (2) is provided with a first through hole (21), the magnetic conduction sheet (3) is provided with a second through hole (31), the magnetic steel (2) and the magnetic conduction sheet (3) are sequentially stacked on the bottom wall of the accommodating cavity, the first through hole (21) is communicated with the second through hole (31) and the bottom groove (11), and gaps are formed between the magnetic steel (2) and the magnetic conduction sheet (3) and the side wall of the accommodating cavity;

the vibration assembly comprises a voice coil (4) and a vibration membrane (7), the vibration membrane (7) is covered at one end of the voice coil (4), a winding (41) is arranged at one end, far away from the vibration membrane (7), of the voice coil (4), and one end, provided with the winding (41), of the voice coil (4) is inserted into the gap in a vertically movable mode;

and the basin frame (5) is used for connecting the magnetic conduction bowl (1) and the vibration assembly.

2. A loudspeaker according to claim 1, wherein the side walls of the receiving chamber are provided with side grooves (12), one end of the side grooves (12) communicating with the bottom groove (11) and the other end extending to the upper end of the side walls of the receiving chamber.

3. A loudspeaker according to claim 2, wherein a plurality of side grooves (12) are uniformly arranged along the circumferential direction of the magnetically conductive bowl (1) at intervals, and the plurality of side grooves (12) are all communicated with the bottom groove (11).

4. A loudspeaker according to claim 3, wherein the bottom slot (11) comprises an annular first recess (111), the first recess (111) communicating with each of the side slots (12).

5. A loudspeaker according to claim 4, wherein the bottom slot (11) further comprises a second recess (112), and both ends of the second recess (112) are respectively communicated with the first recess (111).

6. A loudspeaker according to claim 1, wherein the first through hole (21) and the second through hole (31) are each more than one, each first through hole (21) communicating with one second through hole (31).

7. The loudspeaker according to claim 6, wherein the first through holes (21) are uniformly distributed on the magnetic steel (2), and the second through holes (31) are uniformly distributed on the magnetic conductive sheet (3).

8. A loudspeaker according to claim 1, wherein the vibrating assembly further comprises a folded ring (6), the folded ring (6) having a first folded edge (61) and a second folded edge (62), the first folded edge (61) being fixedly connected to the upper end face of the frame (5), the second folded edge (62) being fixedly connected to the diaphragm (7).

9. The loudspeaker according to claim 8, characterized in that the vibration assembly further comprises a positioning support (42), the voice coil (4) is fixedly connected with the positioning support (42), the positioning support (42) is further fixedly connected with the frame (5), the frame (5) is located between the corrugated rim (6) and the magnetic conduction bowl (1) along the vertical direction, and the side wall of the frame (5) is provided with a plurality of third through holes (51).

10. The loudspeaker according to claim 1, characterized in that a fourth through hole (52) is provided on the frame (5), a convex pillar (13) is provided on the magnetic conduction bowl (1), and the convex pillar (13) is inserted into the fourth through hole (52) and abuts against the frame (5).