Patent Publication Number: US-2013251171-A1

Title: Portable charger for a blue-tooth headset

Description:
BACKGROUND OF THE INVENTION 
     1. Field of the Invention 
     This invention relates to a portable charger, especially to a portable charger which can charge a blue-tooth headset inside the portable charger. 
     2. Description of Related Art 
     Mobile phones are very popular and convenient, but an issue is that using the mobile phones at driving causes many car accidents. The issue can be solved by using a blue-tooth headset at driving. The blue-tooth headset is a wireless headset communicating to a mobile phone by blue-tooth communication protocols. Drivers can use the blue-tooth headset to avoid holding a mobile phone by hand for calling. 
     A conventional blue-tooth headset cannot sustain for a long time without charging. For resolving the car accident issue, users need to use the blue-tooth headset for a long time. The blue-tooth headset needs much power to keep on communicating with the mobile phone anytime. Therefore, the users always need to bring a charger for charging the blue-tooth headset, and look for a mains power socket. When the users go out, a mains power socket is not easily found for charging the blue-tooth headset, and users have to wait for charging the blue-tooth headset nearby the socket until the charging is finished. This charging issue is inconvenient to the users who stay out of doors. 
     SUMMARY OF THE INVENTION 
     This invention provides a portable charger for a blue-tooth headset. Users can place a blue-tooth headset inside the portable charger for charging without waiting nearby a mains power socket. 
     The portable charger includes a body, a power input port, a power storage module, a space, an open hole, and a charging port. The power input port is formed on the body. The power storage module is mounted inside the body and electrically connected to the power input port for storing a charging power that is converted from a mains power. The space is formed inside the body for placing the blue-tooth headset. The open hole is formed through one side of the body and communicating with the space. The charging port is mounted on one side defining the space and electrically connected to the power storage module and the blue-tooth headset for transmitting the charging power from the power storage module to the blue-tooth headset. When a battery of the blue-tooth headset is dead, users can place the blue-tooth headset inside the space. The blue-tooth headset is electrically connected to the charging port for charging the blue-tooth headset. The users can easily carry around the portable charger and the blue-tooth headset that is being charged. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         FIG. 1  is a perspective view of a first embodiment of this invention; 
         FIG. 2  is a block diagram of a charging path of a blue-tooth headset of this invention; 
         FIG. 3  is a perspective view of a second embodiment of this invention; 
         FIG. 4  is a perspective view of a third embodiment of this invention; 
         FIG. 5  is a perspective view of a fourth embodiment of this invention; 
         FIG. 6  is an operational view of a fourth embodiment when charging a blue-tooth headset; and 
         FIG. 7  is an operational view of a fourth embodiment when charging a mobile phone. 
     
    
    
     DETAILED DESCRIPTION OF PREFERRED EMBODIMENT 
       FIGS. 1 and 2  are a first embodiment of a portable charger for a blue-tooth headset. The portable charger comprises a body  10 , a power input port  20 , a power storage module  30 , a space  40 , an open hole  50 , a first charging port  60 , and a positioning assembly. 
     The power input port  20  is formed on the body  10  for receiving an input power. In this embodiment, the power input port  20  is a mini universal serial bus (mini-USB) port. The mini-USB port can receive the input power converted from a mains power. 
     The power storage module  30  is mounted inside the body  10  and electrically connected to the power input port  20 . The input received from the power input port  20  is converted to a charging power for charging the blue-tooth headset  70  by the power storage module  30 . The charging power is stored by the power storage module  30 . 
     The space  40  is formed inside the body  10 , and matches a shape of a first blue-tooth headset  70  for placing the first blue-tooth headset  70  inside. 
     The open hole  50  is formed through one side of the body  10  and communicates with the space  40 . The first blue-tooth headset  70  can be placed inside the space  40  through the open hole  50 . 
     The first charging port  60  is mounted on one side of the space  40 . The first charging port  60  is electrically connected to the first blue-tooth headset  70  placed inside the space  40 . The first charging port  60  is also electrically connected to the power storage module  30 . The connected first blue-tooth headset  70  is charged by the charging power from the power storage module  30  through the first charging port  60 . A position of the first charging port  60  and a type of the first charging port  60  correspond to the first blue-tooth headset  70 . 
     For example, in this embodiment, a first connecting port  71  for charging the first blue-tooth headset  70  is a conductive sheet and is mounted on one side of the first blue-tooth headset  70 . The first charging port  60  is also a conductive sheet, and is mounted on a side defining the space  40 . The first connecting port  71  of the first blue-tooth headset  70  is electrically connected to the first charging port  60  corresponding to the first connecting port  71 . The type of the first charging port  60  can be a plug such as a mini-USB plug. 
     With reference to  FIG. 1 , both the first connecting port  71  and the first charging port  60  are a conductive sheet type, so the first blue-tooth headset  70  is not easily positioned inside the space  40  for connecting the first charging port  60 . Therefore, a positioning element, such as a first protrusion  72 , is formed on a bottom of the first blue-tooth headset  70 . 
     In this embodiment, the positioning assembly is formed on a side defining the space  40 , so the first blue-tooth headset  70  can be positioned inside the space  40 . The positioning assembly is a first cavity  41 . The first cavity  41  is formed on a bottom surface defining the space  40 , and corresponds to the first protrusion  72  of the first blue-tooth headset  70 . 
     After users charge the power storage module  30  of the portable charger by connecting the power input port  20  to the mains power, the portable charger can be carried around by the users. When a battery of the blue-tooth headset is dead, the users can place the first blue-tooth headset  70  inside the space  40 . The first connecting port  71  of the first blue-tooth headset  70  is electrically connected to the first charging port  60  for charging the first blue-tooth headset  70 . Therefore, the users do not have to wait for charging the first blue-tooth headset  70  nearby a power socket of the mains power like using a conventional blue-tooth headset charger. 
       FIG. 3  is a second embodiment of this invention. This embodiment is applied in a second blue-tooth headset  70 ′. A back clip  73  is formed on a top surface of the second blue-tooth headset  70 ′. The second embodiment of the body  10  is similar to the first embodiment of the body  10 . The second embodiment of the body  10  further has a window  80 . The window  80  is formed through one side of the body  10 , and communicates with the open hole  50  and the space  40 . When the second blue-tooth headset  70 ′ is placed into the space  40 , the back clip  73  of the second blue-tooth headset  70 ′ is exposed outside the body  10  through the window  80 , so the second blue-tooth headset  70 ′ with the back clip  73  can be placed into the space  40 . 
       FIG. 4  is a third embodiment of this invention. This embodiment is applied in a third blue-tooth headset  70 ″. The third blue-tooth headset  70 ″ has the first connecting port  71 , two second protrusions  72 ′, and the back clip  73 . The first connecting port  71  is mounted on a bottom surface of the third blue-tooth headset  70 ″. The two second protrusions  72 ′ are respectively formed on two sides of the third blue-tooth headset  70 ″. The third embodiment of the body  10  is similar to the second embodiment of the body  10 . In the third embodiment, the first charging port  60  is a type of a conductive sheet, and is mounted on a bottom surface of the space  40 . The positioning assembly has two second cavities  41 ′. The two second cavities  41 ′ are respectively formed on two opposite sides defining the space  40 , and correspond to the two second protrusions  72 ′. 
     The fourth embodiment of this invention is applied in a fourth blue-tooth headset  70 ′″ as shown in  FIGS. 5 and 6 . The fourth blue-tooth headset  70 ′″ can have the back clip  73  as the second embodiment or the third embodiment, or can be without the back clip  73  as the first embodiment. A second connecting port  71 ′ is formed on a front end of the fourth blue-tooth headset  70 ′″. The second connecting port  71 ′ is a connector, such as a mini-USB port. The fourth embodiment of the body  10  is similar to the second embodiment of the body  10  and the third embodiment of body  10 . The fourth embodiment of the body  10  further has a rotating component  90 . The fourth blue-tooth headset  70 ′″ can be positioned by the connector of the connecting port  71 ′. 
     The rotating component  90  is placed on an end surface defining the space  40 . The end surface is opposite to the open hole  50 . A pivot  91  is formed through the rotating component  90 . Two ends of the pivot  91  are mounted in two opposite sides defining the space  40 . The rotating component  90  is rotatable toward outside the window  80 . A second charging port  60 ′ is formed on the rotating component  90  and is rotated with the rotating component  90  toward inside the space  40  or outside the window  80 . The second charging port  60 ′ matches the second connecting port  71 ′ of the third blue-tooth headset  70 ″, such as a mini-USB plug and a mini-USB socket. When the second charging port  60 ′ of the rotating component  90  is rotated toward outside the window  80 , a top end of the rotating component  90  and a top surface of the body  10  are on the same plane. In this situation, the third blue-tooth headset  70 ″ can be charged and stood on the body  10 . With reference to  FIG. 7 , if an electronic device  100  fits a specification of the portable charger, the electronic device  100  can be electrically connected to the second charging port  60 ′ by standing connection or a connecting cable, so the electronic device  100  can be charged by the portable charger of this invention.