Abstract:
A protecting case for protecting an electronic device includes a hollow main body. The electronic device is received in the main body. The main body is filled with gas having a density less than a density of air, to make the main body and the electronic device suspend in air while received in the main body.

Description:
TECHNICAL FIELD 
       [0001]    The disclosure generally relates to cases, and particularly, to a protection case for an electronic device. 
       DESCRIPTION OF RELATED ART 
       [0002]    Generally, handheld electronic devices do not have a stand for supporting the electronic device. A user has to hold the electronic device in a certain desired orientation. However, to hold the electronic device for a long time can be uncomfortable. 
         [0003]    Therefore, it is desirable to provide a means which can overcome the above-mentioned problems. 
     
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         [0004]    Many aspects of the disclosure 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 disclosure. Moreover, in the drawings, like reference numerals designate corresponding parts throughout the views. 
           [0005]      FIG. 1  is an isometric, assembled view of a protection case and an electronic device in accordance with an exemplary embodiment. 
           [0006]      FIG. 2  is an isometric, cross-sectional view of the protection case of  FIG. 1 , taken along line II-II. 
           [0007]      FIG. 3  is an isometric, exploded view of the protection case of  FIG. 1 . 
           [0008]      FIG. 4  is a cutaway view of the protection case of  FIG. 3 , showing a number of adjusting balls in a first adjustable sidewall of the protection case.. 
           [0009]      FIG. 5  is similar to  FIG. 4 , but showing the adjusting balls in a second adjustable sidewall of the protection case. 
       
    
    
     DETAILED DESCRIPTION 
       [0010]    The disclosure is illustrated by way of example and not by way of limitation in the figures of the accompanying drawings in which like references indicate similar elements. It should be noted that references to “an” or “one” embodiment in this disclosure are not necessarily to the same embodiment, and such references can mean “at least one.” 
         [0011]    In  FIGS. 1-3 , a protection case  1  for an electronic device  2  in accordance with an exemplary embodiment includes a baseboard  10 , a sidewall  12 , and a number of adjusting balls  14 . The sidewall  12  extends from a periphery of the baseboard  10 . The adjusting balls  14  are received inside the sidewall  12 . The baseboard  10  defines a receiving space  16  in cooperation with the sidewall  12  to receive the electronic device  2 . The baseboard  10  and the sidewall  12  are hollow. The baseboard  10  and a part of the sidewall  12  are filled with gas having a density less than air. Thus, the protection case  1  with received the electronic device  2  is suspended in the air via a buoyancy generated by a difference in density between the gas and the air. The adjusting balls  14  roll in the sidewall  12  along different directions to adjust an orientation of the protection case  1 . In this embodiment, the electronic device  2  is a mobile intelligent terminal, such as, a smart phone or a tablet computer. 
         [0012]      FIGS. 3 and 4  show that the baseboard  10  has a predetermined thickness and is hollow inside to accommodate the gas. The sidewall  12  extends from the periphery of the baseboard  10  towards a same direction. The sidewall  12  includes a filling sidewall  120  and an adjustable sidewall  122 . The filling sidewall  120  communicates with the baseboard  10 . The filling sidewall  120  includes a valve  121  to expend the gas. The adjustable sidewall  122  is isolated from the baseboard  10  by a barrier  124 . The adjustable sidewall  122  includes at least two parts  122   a,    122   b  correspondingly extending along different directions and a baffle plate  125  set at a turning corner between two adjacent parts  122   a,    122   b  of the adjustable sidewall  122 . The adjusting balls  14  are received in the adjustable sidewall  122  and roll along the adjustable sidewall  122 . The adjustable sidewall  122  defines a through hole  1250  in the baffle plate  125 . The adjusting balls  14  are transferred between the different parts  122   a,    122   b  of the adjustable sidewall  122  by passing through the through hole  1250 . Thus, a center of gravity of the protection case  1  is adjusted according to a distribution of the number of the adjusting balls  14  in the different parts  122   a,    122   b  of the adjustable sidewall  122 , and the suspending protection case  1  can allow for different positionings. 
         [0013]    In this embodiment, the baseboard  10  is rectangular. The different parts  122   a,    122   b  of the adjustable sidewall  122  are a first adjustable sidewall  122   a  extending along a width of the protection case  1  and a second adjustable sidewall  122   b  extending along a length of the protection case  1 . The first adjustable sidewall  122   a  is directly adjacent to the second adjustable sidewall  122   b.  The adjustable sidewall  122  is not inflated with the gas. In the other embodiment, the adjustable sidewall  122  can be filled with the gas. 
         [0014]      FIGS. 4 and 5  show that in use, the electronic device  2  is received in the receiving space  16  of the protection case  1 . The gas is filled in the filling sidewall  120  and the baseboard  10  via the valve  121 . In this embodiment, the gas is hydrogen. The buoyancy forced in the protection case  1  filled with the gas is substantially equal to a summation of gravity of the protection case  1 . The electronic device  2 , and the adjusting balls  14 , are suspended in the air in the protection case  1 . The adjusting balls  14  roll along the adjustable sidewall  122  when the protection case  1  is rotated adjusting the distribution of the adjusting balls  14  in the adjustable sidewall  122 . Thus, the posture of the suspending protection case  1  is changed according to the distribution of the number of the adjusting balls  14  in the adjustable sidewall  122 . For example, when the adjusting balls  14  stay in the first adjustable sidewall  122   a,  the protection case  1  is inclined with the first adjustable sidewall  122   a  facing downwards and the filling sidewall  120  parallel opposite to the first adjustable sidewall  122   a  facing upwards. When the adjusting balls  14  stay in the second adjustable sidewall  122   b,  the protection case  1  is inclinded with the second adjustable sidewall  122   b  facing downwards and the filling sidewall  120  parallel opposite to the second adjustable sidewall  122   b.    
         [0015]    The hollow protection case  1  is inflated with gas lighter than air gas to hold the electronic device  2  suspended in the air, which relieves fatigue of holding the electronic device  2  by hand for a long time. 
         [0016]    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, the examples hereinbefore described merely being preferred or exemplary embodiments.