CN109862489B

CN109862489B - Loudspeaker device

Info

Publication number: CN109862489B
Application number: CN201811648872.3A
Authority: CN
Inventors: 童迪江; 时阳
Original assignee: AAC Acoustic Technologies Shenzhen Co Ltd
Current assignee: AAC Technologies Holdings Shenzhen Co Ltd
Priority date: 2018-12-30
Filing date: 2018-12-30
Publication date: 2021-01-08
Anticipated expiration: 2038-12-30
Also published as: CN109862489A

Abstract

The invention provides a loudspeaker device which comprises an upper cover, a lower cover and a sounding monomer, wherein a supporting beam comprises a first surface and a second surface which are adjacent, the sounding monomer comprises a first end surface close to the upper cover and a second end surface close to a sound outlet and adjacent to the first end surface, a first adhesive is filled between the first end surface and the second end surface for gluing and sealing to form a first waterproof structure, the second surface is opposite to the second end surface, the joint of the first surface and the second surface is sunken towards the direction far away from the sounding monomer to form an air storage groove, and blocked air is stored in the air storage groove when the second adhesive is filled between the second surface and the second end surface and seeps into the air storage groove for gluing and sealing to form a second waterproof structure. When the first waterproof barrier on the front side between the single sound film surface and the cover plate is invalid, the second waterproof structure can also play a role in waterproofing, so that the waterproof yield and the waterproof reliability of the loudspeaker device are greatly improved.

Description

Loudspeaker device

[ technical field ] A method for producing a semiconductor device

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

[ background of the invention ]

With the advent of the mobile internet age, the number of smart mobile devices has been increasing, and speaker devices for playing sound have also been widely used in smart mobile devices of today.

However, the conventional speaker device has a disadvantage that the waterproof property is not strong. As shown in fig. 1 and 2, the conventional speaker device includes an upper cover 1, a lower cover 2 assembled with the upper cover 1 to form an accommodating space, and a sound generating unit 3 accommodated in the accommodating space, wherein a support beam 11 is disposed at a position of the upper cover 1 near a sound outlet 4, and the shape of the unit 3 is matched with the upper cover 1 for positioning. When 3 sides of the monomer are glued, the air is retained on the bottom surface of the gluing groove, and the gap between the 3 sides of the monomer and the cover plate 1 cannot be completely filled, so that the side of the monomer cannot play a waterproof function, and when glue between the sound film surface of the monomer and the cover plate fails, water flows into the rear cavity of the loudspeaker device from the side of the monomer through the inside of the monomer, so that the loudspeaker device is damaged.

[ summary of the invention ]

The invention aims to provide a loudspeaker device, and aims to solve the technical problem that a gap between a monomer side face and a cover plate cannot be completely filled when glue is applied to the monomer side face, and finally the loudspeaker device is waterproof and invalid.

The technical scheme of the invention is as follows: the utility model provides a loudspeaker device, includes upper cover, lower cover and sound production monomer, the upper cover with lower cover fixed connection forms one and holds the chamber, the sound production monomer is installed hold the intracavity, the upper cover is opened and is equipped with the sound outlet just the upper cover is toward sound production monomer direction extends a supporting beam, a supporting beam includes adjacent first surface and second surface, the sound production monomer is including the first terminal surface that is close to the upper cover and be close to sound outlet and with the adjacent second terminal surface of first terminal surface, the first surface with first terminal surface is relative to carry out the veneer through filling first adhesive between these two and seal in order to form first waterproof construction, the second surface with the second terminal surface is relative, the first surface with the junction of second surface is toward keeping away from sound production monomer direction is sunken to form a gas storage tank the second surface with between the second terminal surface just ooze through filling the second adhesive just the second adhesive The air blocked when flowing into the air storage tank for glue sealing to form a second waterproof structure is stored in the air storage tank.

Further, the first surface and the second surface are perpendicular to each other.

Furthermore, the joint of the first surface and the second surface is concave towards the direction perpendicular to the first surface to form the air storage groove.

Furthermore, the air storage tank is a square tank.

Further, the first adhesive and the second adhesive are both glue.

Furthermore, a positioning structure is arranged between the upper cover and the sounding monomer.

Furthermore, location structure includes reference column and constant head tank, the reference column with the setting of constant head tank interchangeable is in the upper cover with on the sound production monomer, the reference column with the constant head tank cooperation of pegging graft.

The invention has the beneficial effects that: according to the invention, the air storage groove is additionally arranged and is used for storing air which is not discharged in time, so that when the single body is subjected to side gluing, the glue can well fill the gap between the single body and the supporting beam, thereby forming a second waterproof barrier, and when the first waterproof barrier on the front surface between the single body sound film surface and the cover plate fails, the second waterproof structure can also play a role in waterproofing, so that the waterproof yield and the waterproof reliability of the loudspeaker device are greatly improved.

[ description of the drawings ]

Fig. 1 is a perspective view of a conventional speaker device.

FIG. 2 is a sectional view taken along line A-A in FIG. 1.

Fig. 3 is a perspective view of a speaker device according to an embodiment of the present invention.

FIG. 4 is a cross-sectional view B-B of FIG. 3 according to an embodiment of the present invention.

Fig. 5 is a partial enlarged view of the embodiment of the present invention at C in fig. 4.

Fig. 6 is an exploded view of an embodiment of the present invention.

Fig. 7 is a cross-sectional view of the upper cover D-D of fig. 6 according to an embodiment of the present invention.

In the present drawings, the following symbols represent:

10. an upper cover; 11. a lower cover; 12. a sounding monomer; 13. a first adhesive; 14. a second adhesive; 15. a flexible circuit board; 16. a positioning column; 17. positioning a groove; 20. an accommodating chamber; 101. a sound outlet; 102. a support beam; 103. an air storage tank; 121. a first end face; 122. a second end face; 1021. a first surface; 1022. a second surface.

[ detailed description ] embodiments

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

Example 1:

as shown in fig. 3-7, a speaker device includes an upper cover 10, a lower cover 11 and a sound generating unit 12, where the upper cover 10 and the lower cover 11 are fixedly connected to form a receiving cavity 20, the sound generating unit 12 is installed in the receiving cavity 20, the upper cover 10 is provided with a sound outlet 101, the upper cover 10 extends out of a supporting beam 102 toward the sound generating unit 12, the sound outlet 101 is communicated with the receiving cavity 20 through a sound outlet channel, the supporting beam 102 includes a first surface 1021 and a second surface 1022 that are adjacent to each other, the sound generating unit 12 includes a first end surface 121 close to the upper cover 10 and a second end surface 122 close to the sound outlet 101 and adjacent to the first end surface 121, the first surface 1021 is opposite to the first end surface 121 and is sealed by filling a first adhesive 13 to form a first waterproof structure, and the second surface 1022 is opposite to the second end surface 122, the joint of the first surface 1021 and the second surface 1022 is recessed away from the sound generating unit 12 to form an air reservoir 103, and the air which is blocked when the second adhesive 14 is filled between the second surface 1022 and the second end surface 122 and the second adhesive 14 seeps into the air reservoir 103 for gluing and sealing to form a second waterproof structure is stored in the air reservoir 103.

As shown in fig. 3 and 6, the speaker device further includes a flexible circuit board 15, and the flexible circuit board 5 is a circuit board that is conventional in the speaker device and will not be described in detail here.

In this embodiment, the sounding unit 12 includes a frame, a vibration system and a magnetic circuit system, the vibration system and the magnetic circuit system are accommodated in the frame, the magnetic circuit system is used for driving the vibration system, and the vibration system includes a voice coil which is fixed on the frame, is close to the diaphragm on one side of the upper cover, and drives the diaphragm to vibrate and sound. As shown in fig. 4 and 5, the upper surface of the diaphragm is the first end surface 121 of the sounding unit 12, and the diaphragm, the voice coil and the right side surface of the frame form a second end surface 122 of the sounding unit 12.

In this embodiment, the first surface 1021 and the second surface 1022 are perpendicular to each other.

As shown in fig. 5 and 7, the air reservoir 103 is formed by recessing the connection between the first surface 1021 and the second surface 1022 in a direction perpendicular to the first surface 1021 (upward). Preferably, the air storage groove 103 is a square groove, but is not limited thereto, and in other embodiments, the air storage groove 103 may also be a circular groove or a groove with other shapes, which will not be described in detail herein.

In this embodiment, the first adhesive 13 and the second adhesive 14 are but not limited to glue, and will not be described in detail herein.

Example 2:

the present embodiment is different from embodiment 1 in that: a positioning structure is further arranged between the upper cover 10 and the sounding unit 12. The arrangement of the positioning structure can make the sound generating unit 12 more conveniently installed in the accommodating cavity 20.

In this embodiment, the positioning structure includes a positioning column 16 and a positioning groove 17, the positioning column 16 and the positioning groove 17 are interchangeably disposed on the upper cover 10 and the sound-generating unit 12, that is, the positioning column 16 is disposed on the upper cover 10, and the positioning groove 17 is disposed on the sound-generating unit 12; or the positioning column 16 is arranged on the sounding single body 12, and the positioning groove 17 is arranged on the upper cover 10. In this embodiment, the positioning column 16 and the positioning groove 17 are matched by plugging.

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 device comprises an upper cover (10), a lower cover (11) and a sound generating unit (12), wherein the upper cover (10) is fixedly connected with the lower cover (11) to form a containing cavity (20), the sound generating unit (12) is installed in the containing cavity (20), the upper cover (10) is provided with a sound outlet (101), the upper cover (10) extends out of a supporting beam (102) towards the sound generating unit (12), the supporting beam (102) comprises a first surface (1021) and a second surface (1022) which are adjacent to each other, the sound generating unit (12) comprises a first end face (121) close to the upper cover (10) and a second end face (122) close to the sound outlet (101) and adjacent to the first end face (121), the first surface (1021) is opposite to the first end face (121), and is glued and sealed by filling a first adhesive (13) between the first surface (1021) and the first end face to form a first waterproof structure, the second surface (1022) is opposite to the second end face (122), and is characterized in that a connecting part of the first surface (1021) and the second surface (1022) is recessed towards a direction away from the sounding single body (12) to form an air storage groove (103), and air which is blocked when a second adhesive (14) is filled between the second surface (1022) and the second end face (122) and the second adhesive (14) seeps into the air storage groove (103) for gluing and sealing to form a second waterproof structure is stored in the air storage groove (103).

2. The speaker device of claim 1, wherein: the first surface (1021) and the second surface (1022) are perpendicular to each other.

3. The speaker device of claim 2, wherein: the air storage groove (103) is formed inwards towards the direction perpendicular to the first surface (1021) at the joint of the first surface (1021) and the second surface (1022).

4. A speaker apparatus according to claim 1, 2 or 3, wherein: the gas storage tank (103) is a square tank.

5. The speaker device of claim 1, wherein: the first adhesive (13) and the second adhesive (14) are both glue.

6. The speaker device of claim 1, wherein: a positioning structure is further arranged between the upper cover (10) and the sounding monomer (12).

7. The speaker device of claim 6, wherein: the positioning structure comprises a positioning column (16) and a positioning groove (17), the positioning column (16) and the positioning groove (17) are arranged on the upper cover (10) and the sounding single body (12) in an interchangeable manner, and the positioning column (16) and the positioning groove (17) are matched in an inserting manner.