Mobile communication terminal
View Patent ↗A mobile communication terminal with an acoustic chamber for a hands-free speaker. The acoustic chamber is closed or sealed by a removable lid that checks or mates with the chassis or with rear cover of the terminal. The removable lid is arranged to be secured in a releasable manner, allowing access to the acoustic chamber for repairing or replacing the speaker.
1. A mobile communication terminal comprising:
at least one speaker for hands free operation; and
an acoustic chamber with an audio outlet and a speaker received therein;
said acoustic chamber being formed by a structural part of the mobile communication terminal in combination with a removable lid for allowing replacement of said speaker;
a resilient gasket being disposed between said lid and said structural part where the removable lid is configured to abut a substantially rigid circuit board of the terminal so that the substantially rigid circuit board causes compression of at least part of the resilient gasket; and
one or more snap connections configured to attach the lid to the structural part in a releasable manner.
2. A mobile communication terminal according to claim 1 , wherein said structural part is a chassis of the mobile communication terminal.
3. A mobile communication terminal according to claim 1 , wherein said structural part is an antenna unit.
4. A mobile communication terminal according to claim 1 , wherein said structural part is a cover of the mobile communication terminal.
5. A mobile communication terminal according to claim 1 , wherein the substantially rigid printed circuit board of the mobile communication terminal urges the removable lid towards said structural part.
6. A mobile communication terminal according to claim 5 , wherein one or more snap connections attach the removable lid to the structural part in a releasable manner.
7. A mobile communication terminal according claim 1 , wherein said removable lid comprises at least a part of walls of said acoustic chamber that extend between said lid and said structural part.
8. A mobile communication terminal according to claim 1 , wherein said structural part comprises at least a part of walls of said acoustic chamber that extend between said lid and structural part.
9. A mobile communication terminal according claim 1 , wherein said removable lid comprises apertures through which electrical connectors or contacts between the speaker and the printed circuit board may extend.
10. A mobile communication terminal according claim 1 , wherein an antenna is integral with the structural part.
11. A mobile communication terminal having at least one speaker for hands free operation, said mobile communication terminal comprising:
a substantially rigid printed circuit board;
a cover or chassis secured to the printed circuit board;
a removable lid disposed between said printed circuit board and said cover or chassis;
said cover or chassis and said removable lid together defining an acoustical chamber in which said speaker is received;
said removable lid and said cover or chassis abutting along a circumference of said acoustic chamber;
said removable lid being on at least one point along said circumference secured to said cover or chassis by a snap connection; and
said removable lid being configured so that the substantially rigid circuit board urges the removable lid to abut with said cover or chassis.
12. A mobile communication terminal according to claim 11 , wherein said removable lid is provided with at least one ledge directed towards said printed circuit board.
13. A mobile communication terminal according to claim 12 , wherein said at least one ledge is disposed diametrically opposite to said snap connector.
14. A mobile communication terminal according claim 11 , wherein a resilient gasket is disposed along said circumference between said removable lid and said cover or chassis.
15. A mobile communication terminal according claim 11 , wherein said snap connector comprises a snap hook.
16. A mobile communication terminal according claim 15 , wherein said circumference has a substantially rectangular shape, and said snap connector comprises a plurality of unidirectional snap hooks along one side of said circumference and the printed circuit board at least urging the opposite side of said circumference to abut with the cover or chassis.
17. A mobile communication terminal according claim 11 , wherein said removable lid comprises at least a part of walls of said acoustic chamber that extend between said lid and said cover or chassis.
18. A mobile communication terminal according claim 11 , wherein said cover or chassis comprises at least a part of walls of said acoustic chamber that extend between said lid and said cover or chassis.
19. A mobile communication terminal according claim 11 , wherein said removable lid comprises apertures through which electrical connectors or contacts between the speaker and the printed circuit board extend.
20. A mobile communication terminal according claim 11 , wherein an antenna is integral with the cover or chassis.
21. A mobile communication terminal according claim 11 , wherein said cover is an outer cover of said mobile communication terminal.
22. A mobile communication terminal according claim 11 , wherein said chassis is configured to receive an outer cover, preferably a user exchangeable outer cover.