Patent Publication Number: US-2012026687-A1

Title: Housing and electronic device using the same

Description:
BACKGROUND 
     1. Technical Field 
     The present disclosure relates generally to device housings, and especially to a housing with heat dissipating holes and an electronic device using the same. 
     2. Description of Related Art 
     A commonly used electronic device generally includes a housing defining a plurality of heat dissipating holes on a side surface thereof. However, a size of the heat dissipating holes is often very small to reduce electromagnetic radiation, such that the heat dissipating ability of the housing is limited accordingly. 
     Therefore, there is room for improvement within the art. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       The components in the drawings are not necessarily drawn to scale, the emphasis instead being placed upon clearly illustrating the principles of the present disclosure. Moreover, in the drawings, like reference numerals designate corresponding parts throughout the views. 
         FIG. 1  is an isometric view of a first embodiment of an electronic device. 
         FIG. 2  is an enlarged view of a circled portion II shown in  FIG. 1 . 
         FIG. 3  is an isometric view of a second embodiment of an electronic device. 
         FIG. 4  is an enlarged view of a circled portion IV shown in  FIG. 3 . 
     
    
    
     DETAILED DESCRIPTION 
     Referring to  FIGS. 1 and 2 , a first embodiment of the electronic device  200  includes a housing  23 . The housing  23  includes a heat dissipating zone  231  thereon. In the illustrated embodiment, the housing  23  is rectangular, and the heat dissipating zone  231  is formed at a sidewall  230  of the housing  23 . The heat dissipating zone  231  includes a rectangular reinforcement portion  233  curving inwardly on the sidewall  230  of the housing  23  to prevent impact with nearby objects. The reinforcement portion  233  includes a first heat dissipating wall  2331  substantially parallel with the sidewall  230  and four second heat dissipating walls  2333  extending from four edges of the first heat dissipating wall  2331  to the sidewall  230 . The heat dissipating zone  231  defines a plurality of heat dissipating holes  2335  at the first and second heat dissipating walls  2331 ,  2333  of the reinforcement portion  233  and the other portion of the heat dissipating zone  231 . A minimal width of the heat dissipating hole  2335  is 3.5 mm (millimeters) or less to reduce electromagnetic radiation from the electronic device  200 . Alternatively, the reinforcement portion  233  may be cylindrical, semi-columnar, frustum of a pyramid, or other, and the number of second heat dissipating walls  2333  may be one, two, three, five or more accordingly. 
     The reinforcement portion curving on the sidewall  230  of the housing  23  increases an area of the heat dissipating zone  233 , thus the number of heat dissipating holes  2335  may be increased, and the heat dissipating ability of the housing  23  can be improved accordingly. The housing  23  and the reinforcement portion  233  may be manufactured by stamping. The shape and number of the heat dissipating holes  2335  may be varied as desired. 
     Referring to  FIGS. 3 and 4 , a second embodiment of the electronic device  300  differs from the first electronic device  200  only in that the reinforcement portion  333  extends outwardly from the sidewall  330  of a housing  33  to conserve space within the electronic device  300 . Thus, heat dissipating walls  3331  of the reinforcement portion  333  extend outwardly. 
     It is believed that the present embodiments and their advantages will be understood from the foregoing description, and it will be apparent that various changes may be made thereto without departing from the spirit and scope of the disclosure or sacrificing all of its material advantages.