Abstract:
An electric element for electric connection of two corresponding electric elements comprises: two conductors; and liquid metals with low impedance connecting to the two conductors. The two conductors keep in contact with the liquid metals at a situation of relative movement so as to reduce significantly the impedance of the conductors and facilitate the signal transmissions.

Description:
BACKGROUND OF THE INVENTION 
   (a) Field of the Invention 
   The present invention relates to electric elements, and particularly to an electric element with lower impedance. 
   (b) Description of the Prior Art 
   Presently an electric element (such as: electric connector) comprises generally an insulating body and at least one conductor received in the insulating body. The conductor is usually made of punching metal slices. However, the metal slices have higher impedance. Particularly when the conductor is in mechanic contact with a corresponding electric element, a contact portion usually has higher impedance. In addition, a conductor should be bent for ensuring the conductor with better elasticity in many situations, so that the impedance of the conductor is increased. 
   Therefore, it is necessary to develop a novel electric connector to overcome the above-mentioned defects. 
   SUMMARY OF THE INVENTION 
   Accordingly, the primary object of the present invention is to provide an electric element with lower impedance. In order to achieve the object of the present invention, the electric element for electric connection of two corresponding electric elements comprises: two conductors; and liquid metals with low impedance connecting to the two conductors. The two conductors keep in contact with the liquid metals at a situation of relative movement. 
   Comparing to prior arts, the liquid metals of the electric element of the present invention are used as a conductor for connecting two mental bodies so as to reduce significantly the impedance of the conductors and facilitate the signal transmissions. 
   The various objects and advantages of the present invention will be more readily understood from the following detailed description when read in conjunction with the appended drawing. 

   
     BRIEF DESCRIPTION OF THE DRAWINGS 
       FIG. 1  is a perspective view of the electric element of the present invention. 
       FIG. 2  is a perspective view of the electric element of another embodiment of the present invention. 
   

   DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS 
   In order that those skilled in the art can further understand the present invention, a description will be described in the following in details. However, these descriptions and the appended drawings are only used to cause those skilled in the art to understand the objects, features, and characteristics of the present invention, but not to be used to confine the scope and spirit of the present invention defined in the appended claims. 
   Referring to  FIG. 1 , an electric element of the present invention is used for connecting one circuit board to another circuit board. The electric element has insulating bodies  11 . The insulating body  11  comprises an upper layer  14  and a lower layer  15 . The upper layer  14  and the lower layer  15  are fixed each other and form a receiving space  16 . The receiving space  16  is filled with liquid metals  12  of low impedance (such as: mercury). The capacity of the receiving space  16  is slightly larger than the volume of the liquid metals  12  so that the liquid metals  12  as pressured thereof is capable of flowing into the intervals of the receiving space  16 . 
   The two ends of the receiving space  16  have small openings  17 . Two conductors  13  are installed respectively in the small openings  17 . The conductors  13  are installed in protrusion  131  with larger sizes than the openings  17 . One end of the protrusion  131  extends with a contact portion  132 . The opposite end of the protrusion  131  has a base  133 . The base  133  is inserted into the liquid metals  12 . An elastic body  20  (such as: a spring or another kind of elastomer) is installed between the two conductors. Two ends of the elastic body  20  are connected respectively to the two protrusions  131  so as to offer enough elasticity for the two conductors and provide higher positive pressure when the conductors are compressed to be in contact with the circuit boards. 
   The liquid metals  12  are received in the space formed by the receiving space  16  and the protrusion  131  of the two conductors  13  so as to complete the conduction of the two conductors  13 . The contact portion  132  protrudes out of the small opening  17  so as to connect with the electric elements and complete the electric conductions of the two connecting electric elements. 
     FIG. 2  is illustrated with another embodiment of the present invention. The electric element of the present invention is a probe. The probe comprises a metal chamber  30 . One end of the metal chamber  30  has a small opening  31 . The metal chamber  30  has a receiving space  32 . The receiving space  32  is received with liquid metals  12  with low impedance (such as: mercury). A conductor  50  is installed in the small opening  31 . The conductor  50  comprises a protrusion  51  with larger size than the small opening  31  and a contact portion  52  extended from the protrusion  51 . The protrusion  51  is installed in the receiving space  32  and is close to the corresponding small opening  31 . The contact portion  52  protrudes out of the small opening  31 . 
   A base  53  is installed in the protrusion  51  on the opposite side of the contact portion  52  of the conductor. The base  53  is inserted into the liquid metals  40 . The opposite side of the conductor is connected to the metal chamber  30  with an elastic body  60  (such as: a spring or another kind of elastomer). The two ends of the elastic body  60  are connected respectively to the protrusion  51  and the bottom of the metal chamber  30  so as to provide the other conductor enough elasticity. 
   The present invention is thus described, it will be obvious that the same may be varied in many ways. Such variations are not to be regarded as a departure from the spirit and scope of the present invention, and all such modifications as would be obvious to one skilled in the art are intended to be included within the scope of the following claims.