Abstract:
An electronic device includes a housing and a nut. The housing defines a fixing hole. The nut is located in the fixing hole. The nut is shaped to fit in the housing and leave a receiving space. Glue is used in the receiving space for fixing the nut to the housing.

Description:
BACKGROUND 
       [0001]    1. Technical Field 
         [0002]    This disclosure relates to nuts, particularly to a nut used to assembly an electronic device. 
         [0003]    2. Description of Related Art 
         [0004]    An electronic device such as a mobile phone, or a personal digital assistant, includes a front housing and a rear housing assembled to the front housing. A way to assemble the front housing to the rear housing is to first embed a nut into the first housing by a hot melt process, the second housing defines a mating hole; a screw is then passed through the mating hole and screwed into the nut so the first housing and the second housing are assembled together. However, the first housing is subjected to a high temperature during the embedding of the nut to the first housing by the hot melt process, as a result, the first housing may suffer deformation and a precise embedding of the nut to the first housing is not always achieved. 
         [0005]    Therefore, there is a room for improved in the art. 
     
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         [0006]    Many aspects of the embodiments can be better understood with reference to the following drawings. The components in the drawings are not necessarily drawn to scale, the emphasis instead being placed upon clearly illustrating the principles of the exemplary nut, an electronic device using the nut and a method for assembling the electronic device. Moreover, in the drawings, like reference numerals designate their respective parts throughout the several views. Wherever possible, the same reference numbers are used throughout the drawings to refer to the same or like elements of an embodiment. 
           [0007]      FIG. 1  is an exploded view of an exemplary embodiment of an electronic device including a nut and a housing. 
           [0008]      FIG. 2  is an assembled view of the electronic device of  FIG. 1 . 
           [0009]      FIG. 3  is a cross sectional view of the electronic device of  FIG. 2  along the line of III-III. 
           [0010]      FIG. 4  is a cross sectional view of the electronic device of  FIG. 2  along the line of IV-IV. 
       
    
    
     DETAILED DESCRIPTION 
       [0011]    Referring to  FIG. 1 , an exemplary embodiment of an electronic device  100 , such as a mobile phone, includes a housing  10  and a nut  20  embedded into the housing  10  by an adhesive such as glue  30  (see  FIG. 3 ). 
         [0012]    The housing  10  includes a bottom panel  12  and a sidewall  14 . A fixing pole  122  and a plurality of ribs  124  protrude from the bottom panel  12 . The ribs  124  surround and support the fixing pole  122  on the bottom panel  12 . The fixing pole  122  defines a fixing hole  1222  for mounting the nut  20 . To facilitate the mounting of the nut  20  in the fixing hole  1222 , the fixing hole  1222  may be slightly larger than the nut  20 . 
         [0013]    The nut  20  is a hollow cylinder, and includes a first end  21 , a second end  22  and a peripheral surface  24  connecting the first end  21  and the second end  22 . The nut  20  defines a longitudinal threaded through hole  222 . A first flange  244  protrudes from the peripheral surface  24  at the first end  21  and a second flange  246  is at the second end  22 . The peripheral surface  24  further defines a receiving space  242  which includes a plurality of flutes or grooves  2422  longitudinally defined. The receiving space  242  retains the glue  30 . The first flange  244  and the second flange  246  both retain the glue from escaping and spilling during curing, to retain the nut  20  precisely and permanently in the fixing hole  1222 . 
         [0014]    Referring to  FIGS. 2-4 , in assembly, the glue is applied to the grooves  2422 , the glue  30  may be quick drying. The nut  20  is quickly inserted in the fixing hole  1222 . The glue  30  is cured to form a plurality of solid fixing elements  32 , each of which is locked in a groove  2422 , and all the solid fixing elements  32  are secured between the first flange  244  and the second flange  246 . Additionally, the solid fixing elements  32  adhere to the housing  10 , so the nut  20  is retained to the housing  10  by the combination of the solid fixing elements  32  and the first, second flanges  244 ,  246 , to yield an assembly of the electronic device  100 . 
         [0015]    In the above electronic device  100 , the cured glue  30  (as the fixing elements  32 ) is between the first flange  244  and the second flange  246  so the fixing elements  32  keep the second flange  246  captive to prevent the nut  20  from separating from the housing  10 . Additionally, the fixing elements  32  act to prevent the nut  20  from rotating in the fixing hole  1222  relative the housing  10 . Furthermore, the use of glue in assembling the nut  20  to the housing  10 , which cures at substantially lower temperatures than would be used during the hot melt process avoids any high temperature, such as that of the hot melt process, inflicted on the housing  10 . The housing  10  will not be deformed and the nut  20  can be precisely embedded into the housing  10 . 
         [0016]    It is to be further understood that even though numerous characteristics and advantages of the exemplary embodiments have been set forth in the foregoing description, together with details of structures and functions of various embodiments, the disclosure is illustrative only, and changes may be made in detail, especially in the matters of shape, size, and arrangement of parts within the principles of the exemplary invention to the full extent indicated by the broad general meaning of the terms in which the appended claims are expressed.