Abstract:
An electronic device ensuring the polarity-correct installation of a battery includes a polarity-safe structure. The polarity-safe structure includes a fixing member located in a fixing groove and an elastic member secured in a receiving groove opposite to the fixing member. The battery cathode can be electrically coupled to the elastic member, but while the battery anode can be coupled to the fixing member, it cannot couple to the elastic member.

Description:
FIELD 
       [0001]    The present disclosure relates to the structure of battery-powered electronic device. 
       BACKGROUND 
       [0002]    Batteries are widely used in electronic devices, such as flashlight, remote control. When a battery is loaded into an electronic device with anode and cathode of the battery reversed, it would cause damage to the electronic device. 
     
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         [0003]    Many aspects of the present 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 present embodiments. Moreover, in the drawings, all the views are schematic, and like reference numerals designate corresponding parts throughout the several views. 
           [0004]      FIG. 1  is an isometric view of an embodiment of a polarity-safe structure. 
           [0005]      FIG. 2  is an isometric view of a battery assembled with a fixing member and an elastic member of the polarity-safe structure of  FIG. 1 . 
           [0006]      FIG. 3  is a cross sectional view of a battery received in the polarity-safe structure of  FIG. 1 . 
           [0007]      FIG. 4  is another cross sectional view of the battery received in the polarity-safe structure of  FIG. 1 . 
       
    
    
     DETAILED DESCRIPTION 
       [0008]    It will be appreciated that for simplicity and clarity of illustration, where appropriate, reference numerals have been repeated among the different figures to indicate corresponding or analogous elements. In addition, numerous specific details are set forth in order to provide a thorough understanding of the embodiments described herein. However, it will be understood by those of ordinary skill in the art that the embodiments described herein can be practiced without these specific details. In other instances, methods, procedures, and components have not been described in detail so as not to obscure the related relevant feature being described. Also, the description is not to be considered as limiting the scope of the embodiments described herein. The drawings are not necessarily to scale and the proportions of certain parts have been exaggerated to better illustrate details and features of the present disclosure. 
         [0009]    Several definitions that apply throughout this disclosure will now be presented. 
         [0010]    The term “comprising,” when utilized, means “including, but not necessarily limited to”; it specifically indicates open-ended inclusion or membership in the so-described combination, group, series and the like. 
         [0011]    The following disclosure describes an electronic device and a polarity-safe structure. 
         [0012]      FIG. 1  and  FIG. 2  illustrate a polarity-safe structure  10 . The polarity-safe structure  10  is configured to mount a battery  20  to an electronic device  100 . 
         [0013]    In at least one embodiment, the polarity-safe structure  10  includes an enclosure  101  defining two receiving grooves  12 . A positive end  122  and a negative end  124  are fixed in the enclosure  101  and located at opposite ends of each receiving groove  12 . The battery  20  is received in the receiving groove  12 . The positive end  122  defines a fixing groove  1222  communicating with the receiving groove  12 . A size of the fixing groove  1222  is smaller than a size of the cathode  22  and is bigger than a size of the anode  24 . 
         [0014]    The battery  20  includes a body  21 , a cathode  22  and an anode  24 . The cathode  22  and the anode  24  are positioned at opposite ends of the body  20 . 
         [0015]    The polarity-safe structure  10  further includes a fixing member  40  and an elastic member  30 . The fixing member  40  is received in the fixing groove  1222 , and the elastic member is positioned at the negative end  124 . 
         [0016]    The fixing member  40  includes a first fixing member  442 , a second fixing member  444 , and a positioning part  42 . An end of the first fixing member  442  and an end of the second fixing member  444  are coupled together to form a holder  44 . The holder  44  is U-shaped. In at least one embodiment, the holder can be V-shaped. The positioning part  42  includes a first positioning end  422  and a second positioning end  424 . The first positioning end  422  extends from the other end of the first fixing member  442 . The second positioning end  424  extends from the other end of the second fixing member. The fixing member  40  is secured in the fixing groove  1222  by the first positioning end  422  and the second positioning end  424 . 
         [0017]      FIG. 3  and  FIG. 4  illustrate that the polarity-safe structure  10  further includes a positioning protrusion  50 . The positioning protrusion  50  protrudes from the negative end  124 , and is adjacent to the elastic member  30 . 
         [0018]    In operation, the battery  20  is loaded into the receiving groove  12 . The anode  24  is inserted into the fixing groove  1222  and is clamped by the holder  44 . The elastic member  30  is compressed by the cathode  22 , and the positioning protrusion  50  abuts the battery  20 . If the battery  20  has been loaded into the receiving groove  12  in such a way that the cathode  22  abuts the positive end  122 , and the anode  24  abuts the negative end  124 , the cathode  22  is not able to make an electrical connection with the electronic device  100 . 
         [0019]    The embodiments shown and described above are only examples. Many details are often found in the art such as the other features of an electronic device. Therefore, many such details are neither shown nor described. Even though numerous characteristics and advantages of the present technology have been set forth in the foregoing description, together with details of the structure and function of the present disclosure, the disclosure is illustrative only, and changes may be made in the detail, including in matters of shape, size, and arrangement of the parts within the principles of the present disclosure, up to and including the full extent established by the broad general meaning of the terms used in the claims. It will therefore be appreciated that the embodiments described above may be modified within the scope of the claims.