1. Technical Field
The present disclosure relates to electronic devices, and particularly, to an electronic device with a sound chamber.
2. Description of Related Art
Electronic devices such as digital photo frames, tablet computers, electronic books, mobile phones, and MP3 players typically include a speaker. The electronic devices usually include a enclosure, and a middle frame fixed in the enclosure and defining a chamber. The speaker is fixed on the middle frame and faces the chamber. The speaker together with the enclosure and the middle frame define a front chamber and a back chamber. Foam is arranged between the enclosure and the middle frame to seal the front and the back chambers. However, gluing the foam increases the difficulty of assembly, and furthermore, usually causes unsatisfactorily sound due to poor sealing.
Therefore, what is needed is an electronic device alleviating the limitations described above.
The components in the drawings are not necessarily drawn to scale, the emphasis instead being placed upon clearly illustrating the principles of an electronic device with a sound chamber. Moreover, in the drawings, like reference numerals designate corresponding parts throughout the several views.
Referring to
Referring to
The speaker 20 includes a first surface 21 through which the produced sound passes, and a second, opposite surface 22 electrically connected to a circuit board (not shown) of the electronic device 100. The first surface 21 faces the receiving space 110, and the second surface 22 is received in the space 120.
The rubber element 30 is fixed between the space 120 and the receiving space 110. The rubber element 30 includes a main body defining a recess 301 and a through hole 302 penetrating through the bottom of the recess 301. The shape of the recess 301 matches with that of the contour of the first surface 21, allowing the speaker 20 to be received in the recess 301. An engaging ridge 303 protrudes from one side of the rubber element 30, and cooperates with the sidewalls of the upper cover 11 and the lower cover 12 to position the rubber element 30 and to seal a sound chamber 14 defined by the space 120, the receiving space 110 and the enclosure 10. The sound chamber 14 includes a front chamber 114 and a back chamber 124. In this embodiment, materials with good sealing ability integrally form the rubber element 30. The sound chamber 14 is a speaker receiving chamber.
During assembly, the speaker 20 is first received in the rubber element 30. The speaker 20 together with the rubber element 30 is then fixed to the lower cover 12. The upper cover 11 is finally connected to the lower cover 12. In the embodiment, the first surface 21 rests on the bottom of the recess 301. The rubber element 30 together with the speaker 20 is fixed to the space 120 of the lower cover 12. The second surface 22 of the speaker 20 resists against the support member 121, and the engaging ridge 303 resists against the sidewall of the space 120. The receiving space 110 of the upper cover 11 is orientated to align the rubber element 30 with the restricting member 112 resisting on the sidewall of the rubber element 30, and the portions of the rubber element 30, which are exposed out of the space 120, and are received in the receiving space 110. Finally, the upper cover 11 is connected to the lower cover 12. As shown in
With such a configuration, compared with the conventional sealing techniques using a foam, the electronic device 100 has an advantage of ease of assembly by using the rubber element 30. The rubber element 30 can also seal the front and back chambers 114, 124, which improves the seals performance and thus emits better sound.
Although the present disclosure has been specifically described on the basis of the embodiments thereof, the disclosure is not to be construed as being limited thereto. Various changes or modifications may be made to the embodiments without departing from the scope and spirit of the disclosure.
Number | Date | Country | Kind |
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201110241337.8 | Aug 2011 | CN | national |