Speaker box and mobile terminal device using same

1. A speaker box, including:

a main body having a plurality of sound holes;

a dustproof mesh, adhered to an outer side of the main body for covering the sound holes, wherein the dustproof mesh include an air-permeable mesh plate covering the sound holes, and a first bonding layer adhered between the air-permeable mesh plate and the main body, wherein, the first bonding layer including sound transmission holes corresponding to the sound holes and being covered by the air-permeable mesh plate;

a second bonding layer, adhered to the first bonding layer and located on a side of the first bonding layer away from the main body, including an accommodation hole accommodating the air-permeable mesh plate, wherein

the air-permeable mesh plate has an orthographic projection on the first bonding layer not overlapping an orthographic projection of the second bonding layer on the first bonding layer.

2. The speaker box according to claim 1 , wherein a thickness of the second bonding layer is greater than a thickness of the air-permeable mesh plate.

3. The speaker box according to claim 2 , wherein a thickness of the first bonding layer is equal to the thickness of the second bonding layer.

4. The speaker box according to claim 3 , wherein the thickness of the second bonding layer is 0.15 mm±0.02 mm, the thickness of the air-permeable mesh plate has a thickness of 0.05 mm±0.01 mm, and the first bonding layer has a thickness of 0.15 mm±0.02 mm.

5. The speaker box according to claim 2 , wherein a peripheral contour shape of the first bonding layer is same as a peripheral contour shape of the second bonding layer.

6. The speaker box according to claim 2 , wherein the first bonding layer is made of a waterproof double-sided adhesive tape; and/or, the second bonding layer is made of a waterproof double-sided adhesive tape.

7. The speaker box according to claim 2 , wherein the main body comprises a housing and a speaker unit fixed to the housing, the housing is provided with the sound holes; the speaker unit and the dustproof mesh are respectively arranged at the two opposite sides of the housing.

8. The speaker box according to claim 7 , wherein the housing comprises a plastic support and a metal sheet body embedded in the plastic support; the speaker unit includes a vibrating diaphragm opposite to the metal sheet body, and the sound holes correspondingly penetrate the metal sheet body.

9. The speaker box according to claim 1 , wherein a peripheral contour shape of the first bonding layer is same as a peripheral contour shape of the second bonding layer.

10. The speaker box according to claim 1 , wherein the first bonding layer is made of a waterproof double-sided adhesive tape; and/or, the second bonding layer is made of a waterproof double-sided adhesive tape.

11. The speaker box according to claim 1 , wherein the main body comprises a housing and a speaker unit fixed to the housing, the housing is provided with the sound holes; the speaker unit and the dustproof mesh are respectively arranged at the two opposite sides of the housing.

12. The speaker box according to claim 11 , wherein the housing comprises a plastic support and a metal sheet body embedded in the plastic support; the speaker unit includes a vibrating diaphragm opposite to the metal sheet body, and the sound holes correspondingly penetrate the metal sheet body.

13. A mobile terminal device comprising a shell and a speaker box as described in claim 1 , wherein the speaker box is adhered and fixed to the shell through the second bonding layer.

14. The mobile terminal device according to claim 13 , wherein the mobile terminal device is a mobile phone, a tablet PC, an mp3 player, an mp4 player or an mp5 player.