Abstract:
An electronic device includes a casing, a female connector received in the casing and a holder. The casing has a substrate. The female connector is spaced from an inner surface of the casing. The female connector defines an opening in one end thereof for a male connector inserting therein. The holder is between the substrate of the casing and the other end of the female connector which is away from the opening.

Description:
BACKGROUND 
     1. Technical Field 
     The present disclosure relates to electronic devices and, more particularly, to an electronic device for protecting a connector accommodated therein. 
     2. Description of Related Art 
     An electronic device usually includes a main board, a battery module, and a bus connector electrically connected to the main board and the battery module. The main board and the battery module each include a female connector. The bus connector has two male connectors arranged at two ends thereof which are inserted into the female connectors of the main board and the battery module, respectively, electrically connecting the main board to the battery module. However, the female connector of the battery module is spaced from an inner surface of the casing, and so the connector is not supported on one side making it easy to deform and thus become loose when the male connector is inserted in it. Furthermore, dust can enter a space defined between the end of the female connector and the casing. 
     Therefore, what is needed is an electronic device, which can overcome the above described shortcomings. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         FIG. 1  is an exploded, isometric view of an electronic device in accordance with an exemplary embodiment of the present disclosure. 
         FIG. 2  is an assembled, isometric view of the electronic device of  FIG. 1 . 
         FIG. 3  is an enlarged view of a portion III of  FIG. 1 . 
         FIG. 4  is an enlarged view of a portion IV of  FIG. 2 . 
     
    
    
     DETAILED DESCRIPTION 
     Referring to  FIGS. 1 to 3 , an electronic device, in accordance with an exemplary embodiment is shown. The electronic device includes a casing  10 , a battery module  20 , and a main board  30  received in the casing  10 , and a bus connector  40  and a holder  50  for electrically connecting the battery module  20  to the main board  30 . 
     The casing  10  includes a substrate  11 , a sidewall  13  perpendicularly extending up from a peripheral edge of the substrate  11 , and a cover (not shown) covering the sidewall  13 . The substrate  11 , the sidewall  13 , and the cover cooperatively define a chamber  15  for receiving the battery module  20  and the main board  30 . 
     The battery module  20  includes a battery  22 , a protected board  23  arranged at one side of the battery  22 , and a female connector  25 . The female connector  25  includes a hollow rectangular body  251 , two fixing plates  252  extending down from two opposite sides of a bottom surface  250  of the body  251 , and a plurality of terminals  253  extending out and horizontally from the bottom surface  250  of the body  251 . An upper portion of the body  251  defines an opening  256 . The protected board  23  defines a plurality of through holes  230  for respectively receiving the terminals  253 . Each fixing plate  252  includes a planar surface  254  parallel to the bottom surface  250  of the body  251 , and a slanted surface  255  connected between the bottom surface  250  of the body  251  and the planar surface  254 . 
     A power socket  31  is arranged on the main board  30  corresponding to the female connector  25  of the battery module  20 . The bus connector  40  includes a cable  41  having a plurality of electrical lines, and two male connectors  43  mounted on two opposite ends of the cable  41 . The male connectors  43  are respectively inserted into the female connector  25  and the power socket  31 , for electrically connecting the battery module  20  to the main board  30 . 
     The holder  50  is arranged on one side of the protected board  23 , which is away from the battery  22 . The holder  50  includes a first supporting wall  51 , a second supporting wall  53  opposite and parallel to the first supporting wall  51 , and two connecting arms  54  connected between the first supporting wall  51  and the second supporting wall  53 . A top of the second supporting wall  53  is higher than that of the first supporting wall  51 . Each connecting arm  54  includes a first connecting portion  55  adjacent to the first supporting wall  51 , a second connecting portion  56  adjacent to the second supporting wall  53 , and a slanted portion  57  slantingly connected between the first connecting portion  55  and the second connecting portion  56 . A top of the second connecting portion  56  is higher than that of the first connecting portion  55 . In the present embodiment, the holder  50  is integrally formed with the substrate  11  as a single piece. 
     Referring to  FIG. 4 , in assembly of the electronic device, the female connector  25  is mounted on the protected board  23  with the terminals  253  extending through a notch  257  defined by a bottom portion of the female connector  25  and into the through holes  230  of the protected board  23  to connect to the battery  22 . The female connector  25  is seated in the holder  50 . The slanted surface  255  of the fixing plate  252  matches the slanted portion  57  of the connecting arm  54 ; the planar surface  254  of the fixing plate  252  contacts to the first connecting portion  55  of the connecting arm  54 ; the bottom surface  250  of the body  251  matches an upper portion of the second supporting wall  53  of the holder  50 ; therefore, a bottom portion of the female connector  25  tightly contacts with the substrate  11  by the holder  50 . 
     The two male connectors  43  of the bus connector  40  are inserted into the body  251  of the female connector  25  and the power socket  31  of the main board  30 , respectively. The direction of pressing force when the male connector  43  is inserted into the female connector  25  is perpendicular to the extending direction of the terminals  253 . The holder  50  supports the female connector  25  and is between the bottom of the female connector  25  and the substrate  11 ; therefore, it can prevent the terminals  253  of the female connector  25  from deforming. Furthermore, the bottom portion of the female connector  25  tightly contacts with the holder  50  and the opposite side of the holder  50  tightly contacts the substrate  11 , to thereby prevent dust from entering a space defined between the end of the female connector  25  and the substrate  11  of the casing  10 . 
     It is to be further understood that even though numerous characteristics and advantages have been set forth in the foregoing description of embodiments, together with details of the structures and functions of the embodiments, the disclosure is illustrative only; and that 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.