The present disclosure relates to the field of electro-acoustic transducers, and more particularly to a speaker box used in a portable electronic device.
The speaker box of related technology is to achieve the better acoustic performance, so that sound-absorbing powder is often filled in the internal cavity of the speaker box. In the conventional method, the sound-absorbing powder is sealed in a separate case, and then, the case in which the sound-absorbing powder is sealed is fitted into the internal cavity of the speaker box. Designed in such a manner, it is difficult to get full use of the internal cavity space of the speaker box and it is limited to improve the acoustic performance.
Thereof, it is necessary to disclose and provide an improved speaker box to overcome the above-mentioned disadvantages.
Many aspects of the exemplary embodiment can be better understood with reference to the following drawing. The components in the drawing are not necessarily drawn to scale, the emphasis instead being placed upon clearly illustrating the principles of the present disclosure.
The present disclosure will hereinafter be described in detail with reference to an exemplary embodiment. To make the technical problems to be solved, technical solutions and beneficial effects of the present disclosure more apparent, the present disclosure is described in further detail together with the figure and the embodiment. It should be understood the specific embodiment described hereby is only to explain this disclosure, not intended to limit this disclosure.
As shown in
The housing 1 includes an injection hole 4 in accordance with the position of the rear cavity 102. The sound absorptive powder 3 is filled into the rear cavity 102 via the injection hole 4. A sealing net 6 is disposed at the injection hole 4 for covering the injection hole 4 and sealing the sound-absorbing powder 3 in the rear cavity 102. The housing 1 is provided with a groove 5 at the injection hole 4, and the sealing net 6 is provided in the groove 5. Optionally, the sealing net 6 is an air-permeable structure, and the injection hole 4 can serve as a leak hole of the rear cavity 102.
In the present embodiment, the housing 1 includes a first housing 11 and a second housing 12 engaging with the first housing 11. The first housing 11 and the second housing 12 are ultrasonically welded for forming an integrated one. The retaining wall 13 includes a first retaining wall 111 provided in the first housing 11, and a second retaining wall 121 provided in the second housing 12. The first retaining wall 111 and the second retaining wall 121 are ultrasonically welded to form the retaining wall 13. The through-hole 14 is provided in the first retaining wall 111, and the separation mesh 15 is molded in the first retaining wall 111, the first housing 11, the first retaining wall 111, and the separation mesh 15 are integrated injection. The through hole 14 may be provided in the second retaining wall 121, too. In this case, the separation mesh 15 is molded on the second retaining wall 121. Similarly, the second housing 12, the second retaining wall 121 and the separation mesh 15 may be integrally injection-molded. Further, the injection hole 4 may be provided in the first housing 11 in addition to the case of the second housing 12 as in the present embodiment.
The present disclosure provides the speaker box with the retaining wall in the housing, the retaining wall divides the housing into the front cavity and the rear cavity opposite to the front cavity. The speaker unit is disposed in the front cavity, the sound-absorbing powder is disposed in the rear cavity. The retaining wall is provided with the through hole to connect the front cavity and the rear cavity, and the retaining wall is injection-molded with the separation mesh. The separation mesh covers the through hole, and separates the sound-absorbing powder from the front cavity, which can fully utilize the housing space to fill the sound absorption powder, and the speaker box has good acoustic performance.
It is to be understood, however, that even though numerous characteristics and advantages of the present exemplary embodiment have been set forth in the foregoing description, together with details of the structures and functions of the embodiment, the disclosure is illustrative only, and changes may be made in detail, especially in matters of shape, size, and arrangement of parts within the principles of the invention to the full extent indicated by the broad general meaning of the terms where the appended claims are expressed.
Number | Date | Country | Kind |
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2016 2 1173796 U | Oct 2016 | CN | national |
Number | Name | Date | Kind |
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20170164096 | Herold | Jun 2017 | A1 |