CN217825221U

CN217825221U - Loudspeaker module

Info

Publication number: CN217825221U
Application number: CN202221044944.5U
Authority: CN
Inventors: 陈杰; 陈睿; 张红妮
Original assignee: Weishi Technology Co ltd
Current assignee: Weishi Technology Co ltd
Priority date: 2022-04-29
Filing date: 2022-04-29
Publication date: 2022-11-15
Anticipated expiration: 2032-04-29

Abstract

The utility model discloses a loudspeaker module, including speaker monomer, circuit board and have the module shell of interior chamber, the speaker monomer is located in the module shell and is separated interior chamber for antechamber and back chamber, and the module shell includes continuous first casing and second casing, and the one end and the speaker monomer electricity of circuit board are connected, and the other end of circuit board stretches out interior chamber and fixes on the second casing, be equipped with the groove of letting out gas on the second casing, the one end intercommunication in groove of letting out gas the back chamber, the other end in groove of letting out gas exposes for first casing and forms the portion of exposing, and the circuit board covers the region that the portion of exposing is close to first casing. The speaker module sets up the groove of letting out air on the second casing to the utilization shelters from for the electrically conductive circuit board of speaker monomer, thereby plays dirt-proof effect, need not to additionally set up the screen cloth again, does benefit to the material cost of practicing thrift the screen cloth, simultaneously, has saved the equipment process, does benefit to and practices thrift the cost of labor, improves the equipment production efficiency of speaker module.

Description

Loudspeaker module

Technical Field

The utility model relates to an electroacoustic converter technical field especially relates to a speaker module.

Background

As shown in fig. 1, the speaker module includes speaker monomer and module shell 2, and module shell 2 includes continuous first casing 3 and second casing 4, and first casing 3 forms interior cavity after being connected with second casing 4, and speaker monomer locates in the interior cavity and will interior cavity partition is for antechamber and back cavity, is equipped with the play sound passageway with antechamber intercommunication on the module shell 2, and speaker monomer stretches out through one end 1 external circuit of circuit board of interior cavity.

In the existing loudspeaker module, the first shell 3 is provided with an air release hole for communicating the rear cavity with the outside, and the air release hole is used for balancing the convection of air inside and outside the loudspeaker module so as to ensure the normal work of the loudspeaker module; meanwhile, the mesh cloth 5 is required to be covered on the air leakage hole synchronously, and the mesh cloth 5 can ensure smooth air flow and prevent dust and the like from blocking the air leakage hole.

Because the screen cloth needs to be used, therefore, the material cost of the screen cloth can undoubtedly increase the manufacturing cost of the loudspeaker module.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the technical problem that will solve is: a low cost speaker module is provided.

In order to solve the technical problem, the utility model discloses a technical scheme be: the utility model provides a loudspeaker module, includes speaker monomer, circuit board and has the module shell of interior chamber, and the speaker monomer is located in the module shell and is separated interior chamber for antechamber and back chamber, and the module shell is including continuous first casing and second casing, and the one end and the speaker monomer electricity of circuit board are connected, and the other end of circuit board stretches out interior chamber and fixes on the second casing, be equipped with the groove of letting out gas on the second casing, the one end intercommunication in groove of letting out gas the back chamber, the other end in groove of letting out gas exposes for first casing and forms the portion of exposing, and the circuit board covers the region that the portion of exposing is close to first casing.

Furthermore, a window is arranged at the junction of the first shell and the second shell, the other end of the circuit board extends out of the inner cavity through the window, and the other end of the air release groove extends out of the inner cavity through the window so as to be exposed relative to the first shell.

Further, the window is arranged on the first shell, or the window is arranged on the second shell.

Further, the window includes a first portion provided on the first housing and a second portion provided on the second housing.

Further, the circuit board is an FPC board.

Furthermore, a plurality of branch grooves are formed in the area, away from the first shell, of the exposed part, and one ends of the branch grooves are not covered by the circuit board.

Further, the number of the branch grooves is multiple.

Furthermore, a positioning groove is formed in the second shell, and the other end of the circuit board is located in the positioning groove.

Furthermore, a positioning column is arranged on the second shell, and a positioning hole matched with the positioning column is formed in the other end of the circuit board.

The beneficial effects of the utility model reside in that: different from the structural form that the existing loudspeaker module is provided with the air leakage hole on the module shell and covers the mesh cloth, the loudspeaker module is provided with the air leakage groove on the second shell and is shielded by utilizing the circuit board which is conductive to the loudspeaker monomer, so that the dustproof effect is achieved, the mesh cloth does not need to be additionally arranged, the material cost of the mesh cloth is favorably saved, meanwhile, two processes of installing the mesh cloth and checking the bonding state of the mesh cloth in the assembling process are saved, the labor cost is favorably saved, and the assembling production efficiency of the loudspeaker module is improved; in addition, the risk of reworking the net cloth sticking partially can be avoided.

Drawings

FIG. 1 is a schematic diagram of a speaker module according to the prior art;

fig. 2 is a schematic structural diagram of a speaker module according to a first embodiment of the present invention;

FIG. 3 is an enlarged view of detail A of FIG. 2;

fig. 4 is a schematic structural diagram of another view angle of the speaker module according to the first embodiment of the present invention (after the circuit board is hidden);

fig. 5 is an enlarged view of detail B in fig. 4.

Description of the reference symbols:

1. a circuit board;

2. a module housing; 21. a window;

3. a first housing;

4. a second housing; 41. a gas release groove; 42. a branch groove; 43. positioning a groove; 44. a positioning column;

5. screen cloth;

6. and a sound outlet channel.

Detailed Description

In order to explain the technical content, the objects and the effects of the present invention in detail, the following description is made with reference to the accompanying drawings in combination with the embodiments.

Please refer to fig. 2 to 5, a speaker module, which comprises a speaker unit, a circuit board 1 and a module housing 2 having an inner chamber, wherein the speaker unit is arranged in the module housing 2 and divides the inner chamber into a front chamber and a rear chamber, the module housing 2 comprises a first housing 3 and a second housing 4 which are connected, one end of the circuit board 1 is electrically connected with the speaker unit, the other end of the circuit board 1 extends out of the inner chamber and is fixed on the second housing 4, an air release groove 41 is arranged on the second housing 4, one end of the air release groove 41 is communicated with the rear chamber, the other end of the air release groove 41 is exposed relative to the first housing 3 to form an exposed part, and the circuit board 1 covers the area of the exposed part close to the first housing 3.

From the above description, the beneficial effects of the present invention are: different from the structural form that the existing loudspeaker module is provided with the air leakage hole on the module shell 2 and covers the mesh cloth, the loudspeaker module is provided with the air leakage groove 41 on the second shell 4 and is shielded by the circuit board 1 which is conductive to the loudspeaker monomer, so that the dustproof effect is achieved, the mesh cloth does not need to be additionally arranged, the material cost of the mesh cloth is favorably saved, meanwhile, two processes of installing the mesh cloth and checking the bonding state of the mesh cloth in the assembling process are saved, the labor cost is favorably saved, and the assembling production efficiency of the loudspeaker module is improved; in addition, the risk of reworking the net cloth sticking partially can be avoided.

Further, a window 21 is arranged at the junction of the first housing 3 and the second housing 4, the other end of the circuit board 1 extends out of the inner chamber through the window 21, and the other end of the air release groove 41 extends out of the inner chamber through the window 21 to be exposed relative to the first housing 3.

As can be seen from the above description, the air leakage groove 41 is simple in arrangement, and can be formed in the injection molding process of the second housing 4, so that the additional processing steps are not added, and the manufacturing cost of the speaker module can be controlled.

Further, the window 21 is disposed on the first housing 3, or the window 21 is disposed on the second housing 4.

Further, the window 21 includes a first portion provided on the first housing 3 and a second portion provided on the second housing 4.

As can be seen from the above description, the window 21 is arranged in various ways, which is beneficial to enriching the diversity of the speaker module.

Further, the circuit board 1 is an FPC board.

As can be seen from the above description, the flexible printed circuit board 1 is beneficial to reduce the machining precision requirement of the module housing 2, and the flexible printed circuit board 1 can better cover the air leakage groove 41.

Furthermore, a plurality of branch grooves 42 are formed in the region of the exposed part away from the first shell 3, and one end of each branch groove 42 is not covered by the circuit board 1.

Further, the number of the branch grooves 42 is plural.

As can be seen from the above description, when some branch grooves 42 are accidentally blocked, air can enter and exit the rear cavity from other unblocked branch grooves 42, which is beneficial to prolonging the service life of the speaker module.

Further, a positioning groove 43 is formed in the second casing 4, and the other end of the circuit board 1 is located in the positioning groove 43.

As can be seen from the above description, the positioning groove 43 is provided to facilitate the positioning and assembling of the circuit board 1.

Furthermore, a positioning column 44 is disposed on the second casing 4, and a positioning hole matched with the positioning column 44 is disposed at the other end of the circuit board 1.

As can be seen from the above description, the positioning posts 44 are provided to facilitate the positioning and assembling of the circuit board 1.

Example one

Referring to fig. 2 to 5, a first embodiment of the present invention is: a loudspeaker module can be applied to electronic equipment such as mobile phones, interphones, intelligent watches, tablet computers and notebook computers.

The speaker module includes speaker monomer, circuit board 1 and has module shell 2 of interior cavity, and the speaker monomer is located in module shell 2 and separates for antechamber and back cavity with interior cavity, be equipped with the intercommunication on module shell 2 the play sound passageway 6 in antechamber, module shell 2 includes continuous first casing 3 and second casing 4, enclose after first casing 3 is connected with second casing 4 interior cavity, the one end and the speaker monomer electricity of circuit board 1 are connected, and the other end of circuit board 1 stretches out interior cavity and fixes on second casing 4, be equipped with on second casing 4 and bleed groove 41, the one end intercommunication in groove 41 that loses heart back cavity, the other end in groove 41 that loses heart exposes for first casing 3 and forms exposure, and circuit board 1 covers the exposure and is close to the region of first casing 3.

The circuit board 1 may be a hard board or a flexible board, and preferably, the circuit board 1 is an FPC board. The connection manner of the first housing 3 and the second housing 4 includes but is not limited to adhesive connection, ultrasonic welding, screw connection, etc.

As shown in fig. 4 and 5, in the present embodiment, the second housing 4 is an injection molded body structure formed by an injection molding process, so that the air leakage groove 41 is formed simultaneously with the second housing 4, and therefore, an additional machining process for forming the air leakage groove 41 is not required during the manufacturing process. Optionally, the first housing 3 is also an injection molded structure.

Referring to fig. 2 to 5, in detail, a window 21 is disposed at a boundary between the first housing 3 and the second housing 4, the other end of the circuit board 1 extends out of the inner cavity through the window 21, and the other end of the air release groove 41 extends out of the inner cavity through the window 21 to be exposed to the outside of the first housing 3. That is, the exposed portion of the air release groove 41 is covered with the circuit board 1 at least from the position of the window 21, so that the risk of dust and the like entering the rear cavity is greatly reduced.

In some embodiments, as shown in fig. 5, the window 21 is provided on the first housing 3, or the window 21 is provided on the second housing 4. In the present embodiment, the window 21 includes a first portion provided on the first housing 3 and a second portion provided on the second housing 4. That is, the window 21 is formed by connecting the first housing 3 and the second housing 4.

Referring to fig. 3 and 5, in detail, a plurality of branch grooves 42 are formed in a region of the exposed portion away from the first housing 3, and one end of each branch groove 42 is not covered by the circuit board 1. Preferably, the number of the branch grooves 42 is plural. In this embodiment, the number of the branch grooves 42 is two.

In order to facilitate the positioning and installation of the circuit board 1, a positioning groove 43 is disposed on the second casing 4, and the other end of the circuit board 1 is located in the positioning groove 43, in this embodiment, the air release groove 41 is disposed in the positioning groove 43.

Optionally, a positioning column 44 is disposed on the second casing 4, and a positioning hole matched with the positioning column 44 is disposed at the other end of the circuit board 1. In this embodiment, the positioning column 44 is disposed in the positioning groove 43.

To sum up, the speaker module provided by the utility model is provided with the air release groove on the second shell and is shielded by the circuit board which is conductive to the speaker monomer, thereby playing a role of dust prevention, and being beneficial to saving the material cost of the mesh cloth without additionally arranging the mesh cloth, meanwhile, saving two processes of installing the mesh cloth and checking the laminating state of the mesh cloth in the assembling process, being beneficial to saving the labor cost and improving the assembling production efficiency of the speaker module; in addition, the risk of reworking the net cloth sticking partially can be avoided. The air leakage groove is provided with a plurality of branch grooves, so that the air leakage groove can be effectively prevented from being blocked, and the working stability of the loudspeaker module is guaranteed.

The above mentioned is only the embodiment of the present invention, and the patent scope of the present invention is not limited thereby, and all the equivalent transformations made by the contents of the specification and the drawings, or the direct or indirect application in the related technical field, are included in the patent protection scope of the present invention.

Claims

1. The utility model provides a loudspeaker module, includes speaker monomer, circuit board and has the module shell of interior chamber, and the speaker monomer is located in the module shell and is separated interior chamber for antechamber and back chamber, and the module shell is connected with the second casing including the first casing that links to each other, and the one end and the speaker monomer electricity of circuit board are connected, and the other end of circuit board stretches out interior chamber and fixes on the second casing, its characterized in that: the second shell is provided with an air release groove, one end of the air release groove is communicated with the rear cavity, the other end of the air release groove is exposed relative to the first shell to form an exposed part, and the circuit board covers the area of the exposed part close to the first shell.

2. The speaker module of claim 1, wherein: the junction of the first shell and the second shell is provided with a window, the other end of the circuit board extends out of the inner cavity through the window, and the other end of the air release groove extends out of the inner cavity through the window so as to be exposed relative to the first shell.

3. The speaker module of claim 2, wherein: the window is arranged on the first shell, or the window is arranged on the second shell.

4. The speaker module as claimed in claim 2, wherein: the window includes a first portion disposed on the first housing and a second portion disposed on the second housing.

5. The speaker module of claim 1, wherein: the circuit board is an FPC board.

6. The speaker module of claim 1, wherein: a plurality of branch grooves are formed in the area, away from the first shell, of the exposed portion, and one ends of the branch grooves are not covered by the circuit board.

7. The speaker module of claim 6, wherein: the number of the branch grooves is multiple.

8. The speaker module of claim 1, wherein: and the second shell is provided with a positioning groove, and the other end of the circuit board is positioned in the positioning groove.

9. The speaker module of claim 1, wherein: and a positioning column is arranged on the second shell, and a positioning hole matched with the positioning column is formed in the other end of the circuit board.