Patent Publication Number: US-8967322-B2

Title: Speaker box

Description:
FIELD OF THE INVENTION 
     The present disclosure generally relates to the art of transducers, and more particularly, to a speaker box capable of providing sound. 
     DESCRIPTION OF RELATED ART 
     Gradually, speaker boxes are widely used in many types of portable electronic devices, such as mobile phones, notebook computers, hearing aids, for converting audio electrical signals to audible sounds. 
     Speaker box is an electronic element of audio equipment in common use capable of playing audio signal, and a frame of a traditional speaker box is manufactured by injection molding process, thus, all of the traditional speaker boxes have a groove for preventing the box from shrinking. However, if the inner wall of the groove is too thick, it will cause shrinking problem. If the inner wall of the groove is too thin, it will affect the reliability of the speaker box. 
     Therefore, the present disclosure is provided to solve the problems mentioned above. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWING 
         FIG. 1  is an isometric exploded view of a speaker box in accordance with an exemplary embodiment of the present disclosure; 
         FIG. 2  is an illustrative cross-sectional view of the speaker box in  FIG. 1 ; and 
         FIG. 3  is an isometric view of an upper plate of the speaker box in  FIG. 1 . 
     
    
    
     DETAILED DESCRIPTION OF THE EXEMPLARY EMBODIMENT 
     Reference will now be made to describe an exemplary embodiment of the present disclosure in detail. 
     Referring to  FIGS. 1-3 , the present disclosure provides a speaker box, which comprises a main body portion  1  and an upper plate  2  connected to the main body portion  1 . The main body portion  1  has a frame  10  and a speaker body  11  received therein. The frame  10  has a cavity  101  for housing the speaker body  11 , a partition wall  102 , and a groove  103  separated from the cavity  101  by the partition wall  102  for preventing the frame  10  from shrinking. 
     A plurality of the reinforcement ribs  1031  spaced from each other is disposed on an inner side wall  104  opposite to the partition wall  102 , and the inner side wall  104  is spaced from the partition wall  102 . The reinforcement ribs  1031  are fixed to a bottom of the groove  103 . In fact, the inner side wall  104  and the bottom of the groove  103  are integrated with the reinforcement ribs  1031 , and the reinforcement ribs  1031  are optionally such arranged that each of the reinforcement ribs  1031  keeps a determined distance to an adjacent one. The upper plate  2  is fixed to the reinforcement ribs  1031 . A surface of a combination of the reinforcement ribs  1031  facing the upper plate  2  and a surface of the partition wall  102  facing the upper plate  2  are on a same plane. The reinforcement ribs  1031  can optionally be disposed at the inner side wall of the groove  103  opposite to the partition wall  102 , and can also optionally be disposed at any inner wall of the groove  103 . 
     The upper plate  2  includes four protruding ribs  21  connected with each other and a partition plate  22  connected with two opposite protruding ribs  21 . The protruding ribs  21  extending downwardly from a periphery of the upper plate  2  are fixed to the reinforcement ribs  1031 . The partition plate  22  is fixed to the partition wall  102 . The upper plate  2  is fixed to the main body portion  1  by ultrasonic soldering, glue, or laser soldering, at a result, the groove  103  forms a closure chamber. The present disclosure improves the bonding strength of the upper plate  2  and the main body portion  1 , the stability of the speaker box. Furthermore, the disclosure can present the frame  10  of the speaker box from shrinking. 
     While the present disclosure has been described with reference to the specific embodiments, the description of the disclosure is illustrative and is not to be construed as limiting the disclosure. Various of modifications to the present disclosure can be made to the exemplary embodiments by those skilled in the art without departing from the true spirit and scope of the disclosure as defined by the appended claims.