CN218888709U

CN218888709U - Loudspeaker module

Info

Publication number: CN218888709U
Application number: CN202320344144.3U
Authority: CN
Inventors: 宋学平
Original assignee: Gettop Acoustic Co Ltd
Current assignee: Gettop Acoustic Co Ltd
Priority date: 2023-03-01
Filing date: 2023-03-01
Publication date: 2023-04-18
Anticipated expiration: 2033-03-01

Abstract

The utility model provides a loudspeaker module, which belongs to the technical field of loudspeakers, wherein a shell for accommodating a loudspeaker monomer is provided with a conductive circuit and a cavity for accommodating the loudspeaker monomer, and one end of the conductive circuit is provided with a third welding disk end positioned outside the cavity; the loudspeaker comprises a loudspeaker body and is characterized in that an electric conduction piece is arranged on a frame of the loudspeaker body, the electric conduction piece comprises a first welding disk end and a second welding disk end which are communicated with a voice coil of the loudspeaker body and a connecting arm which is communicated with the first welding disk end and the second welding disk end, the connecting arm extends out of the cavity, and the second welding disk end is electrically connected with a third welding disk end; the electric conducting piece is arranged on the frame of the loudspeaker monomer, so that the assembly space of an external circuit is saved, the volume of the whole loudspeaker module can be further reduced, and the development requirements of integration and miniaturization of the current electronic products are met; the second pad end extends to the outside of the cavity, and the third pad end can be directly connected with the second pad end, so that the connection difficulty is reduced, and the production efficiency is improved.

Description

Loudspeaker module

Technical Field

The utility model relates to a speaker technical field, specifically speaking relates to a speaker module.

Background

The loudspeaker module is an important component of the smart phone, a loudspeaker monomer of the existing loudspeaker module is in an implanted type, the connection mode is a bonding pad type, the loudspeaker module is connected with the whole phone through an injection molding steel sheet, an inner core bonding pad is welded with one end of a flexible circuit board, the other end of the flexible circuit board is connected with a bonding pad of the steel sheet, and the bonding pad of the steel sheet is connected with the whole phone through an elastic sheet.

The existing loudspeaker module has the following disadvantages: 1. the size is large, and the method is not suitable for the development requirement of high integration level of the existing smart phone. 2. The flexible circuit board needs to be welded twice, the manufacturing process is complex, and the production efficiency is low. 3. The flexible circuit board is higher in cost, so that the cost of the loudspeaker module is increased, and the price is not dominant in market competition.

Therefore, a speaker module with a small size, a simple manufacturing process and a low cost is needed.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model provides a mode reduce cost that utilizes the lower electric conduction piece of price to replace flexible circuit board utilizes the electric conduction piece to reduce the welding number of times and improves production efficiency, utilizes the characteristic of electric conduction piece to reduce the equipment space, reduces the volume of speaker module.

The technical scheme of the utility model is realized like this: a loudspeaker module comprises a shell and a loudspeaker single body, wherein the shell is provided with a conducting circuit and a cavity for containing the loudspeaker single body, and one end of the conducting circuit is provided with a third welding disc end positioned outside the cavity; be provided with electric conduction spare on the free basin frame of speaker, electric conduction spare includes first pad end, second pad end that switch on with the free voice coil loudspeaker voice coil of speaker and switches on first pad end with the linking arm of second pad end, the linking arm extends to outside the cavity, second pad end with third pad end electricity is connected.

On the basis of the technical scheme, preferably, the electric conduction piece and the basin frame are molded into an integral structure through injection, and the electric conduction piece is a steel sheet, a PCB (printed circuit board), a lead or a laser etching circuit board.

On the basis of the technical scheme, preferably, the conducting circuit is a steel sheet, a PCB, a conducting wire, a laser-etched circuit board or an FPC.

On above technical scheme's basis, preferred, electric conduction spare is the steel sheet, electric conduction spare and the free basin frame of speaker mould plastics an organic whole structure, the conducting wire is the steel sheet, the conducting wire with a body structure is moulded plastics to the casing.

On the basis of the above technical solution, preferably, the cavity includes an opening, and the connecting arm extends from the opening to outside the cavity.

On the basis of the above technical solution, preferably, the third pad end is folded toward the opening and is flush with the opening, and the third pad end is tightly attached to the second pad end.

On the basis of the above technical solution, preferably, a boss is provided on the housing, the boss abutting against the opening; the third pad end is fixed on the boss.

On the basis of the technical scheme, preferably, the conducting circuit and the lug boss are molded into an integral structure.

The utility model relates to a speaker module has following beneficial effect for prior art:

(1) The flexible circuit board is replaced by the lower-cost electric conduction piece on the frame of the loudspeaker monomer, so that the cost of the loudspeaker module is reduced, the assembly space of an external circuit is saved by the electric conduction piece, the volume of the whole loudspeaker module can be further reduced, and the development requirements of integration and miniaturization of the current electronic products are met; the second bonding pad end extends out of the cavity, and the third bonding pad end can be directly connected with the second bonding pad end, so that the connection difficulty is reduced, and the production efficiency is improved;

(2) The electric conduction piece and the loudspeaker single body are integrated in an injection molding mode, external wiring is not needed, the assembly space of the loudspeaker single body is saved, the electric conduction piece is injected inside the basin frame, the basin frame has a protection effect on the electric conduction piece, and the risks of short circuit and open circuit of the electric conduction piece are reduced;

(3) The conductive circuit is fixed on the shell in an injection molding mode, so that the assembly space in the shell is saved, meanwhile, the shell has a protection effect on the conductive circuit, and the risks of short circuit and open circuit of the conductive circuit are reduced;

(4) The third pad end is turned over to be flush with the opening in the direction of the opening, so that the third pad end is conveniently welded with the second pad end extending out of the opening;

(5) In order to ensure the reliability of the third pad end and the second pad end after conduction, the turned third pad end is fixedly arranged on a boss close to the cavity.

Drawings

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

Fig. 1 is a perspective view of a speaker module according to the present invention;

FIG. 2 is a perspective view of the housing of the present invention;

fig. 3 is a perspective view of the speaker unit and the electrical conductive member of the present invention;

fig. 4 is a perspective view of the speaker unit of the present invention.

Detailed description of the preferred embodiments

The technical solutions of the embodiments of the present invention will be described clearly and completely below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

As shown in fig. 1-4, a speaker module includes a housing 1 and a speaker unit 2, wherein the housing 1 is provided with a cavity 11 for accommodating the speaker unit 2, the housing 1 is provided with a conductive circuit 3, one end of the conductive circuit 3 is provided with a third pad end 31, and the third pad end 31 is disposed outside the cavity 11; the speaker unit 2 belongs to a core component of the speaker module, so that the speaker unit 2 is protected and fixed by the cavity 11.

The loudspeaker single body 2 needs to be connected with an external complete machine when in use, and the existing mode is that one end of a flexible circuit board extends into a cavity 11 to be connected with the loudspeaker single body 2, and the other end of the flexible circuit board is connected with a spring plate of the complete machine; be provided with electric conduction piece 4 among this technical scheme on the basin frame of speaker monomer 2, electric conduction piece 4, as shown in fig. 1 and 3, include first pad end 41, second pad end 42 that switch on with the voice coil of speaker monomer 2 and switch on first pad end 41 with the linking arm 43 of second pad end 42, linking arm 43 extends outside cavity 11, second pad end 42 with third pad end 31 electricity is connected. The electric conduction piece 4 is arranged on the frame of the loudspeaker single body 2, so that the assembly space of the electric conduction piece 4 is saved, the volume of the whole loudspeaker module can be further reduced, and the development requirements of integration and miniaturization of the current electronic products are met; the second pad end 42 extends to the outside of the cavity 11, and the third pad end 31 can be directly connected with the second pad end 42, so that the connection difficulty is reduced, and the production efficiency is improved.

The third pad end 31 and the second pad end 42 can be bonded by conductive adhesive and connected by a spring plate, wherein a laser machine is used for welding in a preferred embodiment, the laser collimation is high, and the accuracy rate is high when the welding spot is small; in addition, the laser welding speed is fast, so that the production efficiency is improved, and if the third pad end 31 and the second pad end 42 are connected in a welding manner, plating layers are arranged on the third pad end 31 and the second pad end 42, and the plating layers can be made of nickel or gold or alloys of nickel and gold.

The electric conducting piece 4 is a steel sheet, a PCB, a lead or a laser etching circuit board and the like, and one of the electric conducting piece, the PCB, the lead or the laser etching circuit board can be selected according to needs in actual use, and in a preferred embodiment mode, the electric conducting piece 4 is a steel sheet; the conductive circuit 3 is a steel sheet, a PCB, a lead, a laser etched circuit board or an FPC, and any one of the above options is selected according to the need in practical use, and in a preferred embodiment, the conductive circuit 3 is a steel sheet. The cost of the steel sheet is far lower than that of a PCB, a lead, a laser-etched circuit board or an FPC, so that the cost of the loudspeaker module can be obviously reduced by selecting the steel sheet for the electric conducting piece 4 and the conducting circuit 3.

The electric conduction piece 4 and the frame of the loudspeaker single body 2 are molded into an integral structure, the electric conduction piece 4 and the loudspeaker single body 2 are integrated in an injection molding mode, external wiring is not needed, the assembling space is saved, the electric conduction piece 4 is molded in the frame in an injection molding mode, the frame has a protection effect on the electric conduction piece 4, and the risks of short circuit and open circuit of the electric conduction piece 4 are reduced; the conducting circuit 3 and the shell 1 are of an integrated structure through injection molding, the conducting circuit 3 is fixed on the shell 1 through injection molding, the space for assembling the conducting circuit 3 is saved, the shell 1 has a protection effect on the conducting circuit 3, and the risks of short circuit and open circuit of the conducting circuit 3 are reduced.

The cavity 11 includes the opening, the linking arm 43 by outside the opening department extends to cavity 11, second pad end 42 stretches out the mode of cavity 11 by the opening part, and this mode is convenient for get and puts speaker monomer 2 in cavity 11, avoids punching on cavity 11 and makes second pad end 42 stretch out, in case punch on cavity 11, just can reduce the leakproofness of cavity 11, reduces cavity 11 to the protective capacities of speaker monomer 2.

The third pad end 31 is folded towards the opening and then flush with the opening, and the third pad end 31 is tightly attached to the second pad end 42. Since the conductive traces 3 and the housing 1 are integrated by injection molding, and the second pad end 42 extends from the opening, the third pad end 31 and the second pad end 42 are not in the same plane, and in order to enable the third pad end 31 and the second pad end 42 to be better welded, the third pad end 31 is turned over toward the opening to be flush with the opening, so that the third pad end 31 and the second pad end 42 extending from the opening can be conveniently welded.

The structure further comprises a boss 5, as shown in fig. 1 and 2, the boss 5 is arranged on the housing 1 close to the cavity 11, the third pad end 31 is fixed on the boss 5, the folded third pad end 31 is in a suspended state, and in order to ensure the reliability after the third pad end 31 is conducted with the second pad end 42, the folded third pad end 31 is fixedly arranged on the boss 5 close to the cavity 11.

Third pad end 31 and boss 5 mould plastics into an organic whole structure, because conducting wire 3 becomes an organic whole through the mode of moulding plastics and casing 1, also become third pad end 31 and boss 5 through the mode integrated into one piece of moulding plastics, practice thrift the space of third pad end 31, fix third pad end 31, it is insecure to avoid the third pad end 31 after buckling to fix, lead to third pad end 31 and second pad end 42 welding part continuity to reduce, influence the use of whole speaker module.

The speaker unit 2, as shown in fig. 4, includes a contact 21, and the first pad end 41 is connected to the contact 21; as shown in fig. 4, a manner is given in which each speaker unit 2 includes two contacts 21, each contact 21 is connected to one first pad terminal 41, and each electrical conduction member 4 is connected to one conductive line 3; it is within the scope of the present solution to vary the number and position of the contacts 21, the conductive tracks 3 and the electrical conductors 4.

The conductive circuit 3 further includes a fourth pad end 32, and the fourth pad end 32 corresponds to a position where the elastic sheet of the client machine is located.

The fourth pad end 32 is provided with a plating layer, and the purpose of the plating layer provided on the fourth pad end 32 is to prevent corrosion and increase the conductivity of the fourth pad end 32 and the spring plate of the whole machine, so the plating layer is made of nickel or gold or an alloy of nickel and gold.

Be provided with sealed glue between speaker monomer 2 and the cavity 11, block aqueous vapor and granule etc. through sealed glue and get into cavity 11, avoid producing the influence to speaker monomer 2, improve the reliability of speaker module.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A loudspeaker module comprises a shell (1) and a loudspeaker single body (2), wherein the shell (1) is provided with a conducting circuit (3) and a cavity (11) for containing the loudspeaker single body (2), and one end of the conducting circuit (3) is provided with a third pad end (31) positioned outside the cavity (11);

the method is characterized in that: be provided with electric conduction spare (4) on the basin frame of speaker monomer (2), electric conduction spare (4) include with first pad end (41), second pad end (42) and the conduction that the voice coil loudspeaker voice coil of speaker monomer (2) switched on first pad end (41) with linking arm (43) of second pad end (42), linking arm (43) extend to outside cavity (11), second pad end (42) with third pad end (31) electricity is connected.

2. A loudspeaker module as claimed in claim 1, wherein: the electric conduction piece (4) and the basin frame are molded into an integral structure through injection, and the electric conduction piece (4) is a steel sheet, a PCB, a lead or a laser etching circuit board.

3. A loudspeaker module as claimed in claim 1, wherein: the conducting circuit (3) is a steel sheet, a PCB, a conducting wire, a laser etching circuit board or an FPC.

4. A loudspeaker module as claimed in claim 1, wherein: electrically conductive piece (4) are the steel sheet, electrically conductive piece (4) and the basin frame of speaker monomer (2) mould plastics into an organic whole structure, conducting wire (3) are the steel sheet, conducting wire (3) with casing (1) mould plastics into an organic whole structure.

5. A loudspeaker module as claimed in any one of claims 1 to 4, wherein: the cavity (11) comprises an opening from which the connecting arm (43) extends outside the cavity (11).

6. A speaker module as claimed in claim 5, wherein: the third pad end (31) is folded towards the opening and flush with the opening, and the third pad end (31) is closely attached to the second pad end (42).

7. A loudspeaker module as claimed in claim 5, wherein: a boss (5) is arranged on the shell (1), and the boss (5) abuts against the opening; and the third pad end (31) is fixed on the boss (5).

8. A speaker module as claimed in claim 7, wherein: the conducting circuit (3) and the boss (5) are molded into an integral structure.