Patent Publication Number: US-2011070472-A1

Title: Watertight battery cover assembly for electronic device

Description:
BACKGROUND 
     1. Technical Field 
     The present disclosure relates to battery cover assemblies, particularly, to a waterproof battery cover assembly for electronic devices. 
     2. Description of Related Art 
     Electronic devices usually have a removable battery cover. Usually the covers are not watertight and therefore moisture can penetrate the electronic device shortening the useful life of the electronic device. 
     Therefore, there is a room for improvement within the art. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       Many aspects of a watertight battery cover assembly for electronic device using the same can be better understood with reference to the following drawings. The components in the drawings are not necessarily to scale, the emphasis instead being placed upon clearly illustrating the battery cover assembly with watertight function for electronic device using the same. Moreover, in the drawings, like reference numerals designate corresponding parts throughout the several views. 
         FIG. 1  is an exploded, isometric view of an exemplary battery cover assembly used in an electronic device. 
         FIG. 2  is an enlarged, isometric view of a battery cover and a gasket shown in  FIG. 1 . 
         FIG. 3  is an assembled, isometric view of the electronic device shown in  FIG. 1 . 
         FIG. 4  is a cross-sectional view of the electronic device taken along line IV-IV of  FIG. 3 . 
     
    
    
     DETAILED DESCRIPTION 
       FIG. 1  shows an exemplary battery cover assembly  100  used in an electronic device, such as a mobile phone, a personal digital assistant, and so on. 
     The battery cover assembly  100  includes a removable battery cover  10 , a gasket  20 , and a main body  30 . Referring to  FIG. 2 , the battery cover  10  includes a plate  11 , a frame  13 , and two pairs of latching elements  15 . The plate  11  is substantially a rectangular sheet. A flange portion  111  extends from a periphery of one side of the plate  11  to define a space  12 . The frame  13  is formed immediately adjacent an inward side of the flange portion  111  defining a slot  17  therebetween for receiving the gasket  20 . Each pair of the latching elements  15  is symmetrically positioned on the frame  13 . Each of the latching elements  15  includes a hook  151  perpendicularly extending from a free end thereof. 
     The gasket  20  is made of a resilient material, such as rubber. The gasket  20  includes a first sealing portion  21  and a second sealing portion  23  integrally formed with the first sealing portion  21 . The first sealing portion  21  has a shape corresponding to the frame  13 . The first sealing portion  21  can be placed around the frame  13  and one end of the first sealing portion  21  is received in the slot  17 . The second sealing portion  23  extends from a middle of a peripheral wall of the first sealing portion  21 . The second sealing portion  23  has an arcuate surface for abutting against the main body  30  to prevent water from entering the main body  30 . 
     The main body  30  may be portions of the electronic device and includes a base  31 . The base  31  defines an opening  35  and a receiving cavity  33  communicating with each other. The opening  35  is used for receiving the battery cover  10 . The receiving cavity  33  receives a battery (not shown). The receiving cavity  33  is defined by a peripheral wall  331 . Two blocks  37  symmetrically extend from two sides of the peripheral wall  331  to latch the latching elements  15 . 
     Referring to  FIG. 3  and  FIG. 4 , in assembly, firstly, the first sealing portion  21  is placed surrounding the frame  13 , and received in the slot  17 . The second sealing portion  23  resists the flange portion  111 . Thus, the gasket  20  is assembled to the battery cover  10 . Secondly, the base  31  faces the recessed slot  12 , and the battery cover  10  is pressed in the receiving cavity  33 . The latching elements  15  latch the latching blocks  37 . The second sealing portion  23  is received in the receiving cavity  33 , and resists the peripheral wall  331 . Thus, the gasket  20  is positioned between the frame  13  and the peripheral wall  331  forming a watertight sealing. 
     It is to be understood, however, that even through numerous characteristics and advantages of the present disclosure have been set forth in the foregoing description, together with details of the structure and function of the disclosure, 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 disclosure to the full extent indicated by the broad general meaning of the terms in which the appended claims are expressed.