Patent Publication Number: US-7901249-B1

Title: Power connector

Description:
BACKGROUND OF THE INVENTION 
     1. Field of the Invention 
     The present invention relates to a power connector, especially to a power connector in which resilient sheets and reverse stabs are installed, wherein the resilient sheets are served to provide a buffering effect and the reverse stabs are served to be fastened on a body for preventing being released from the body. 
     2. Description of Related Art 
     A conventional power connector is often installed with a positive column and a grounding terminal for providing an electrical connection with a plug (not shown). 
     The structure of grounding terminal of a conventional power connector, e.g. “Power identification structure of connector” disclosed by the Taiwan Utility Model No. M370865; for avoiding mixing up codes of elements shown in drawings disclosed by the aforesaid patent with codes of elements which will be illustrated in this patent application, each code of the aforesaid patent is added with “′” for discrimination; as shown in  FIG. 1 , a first terminal  120 ′ has six contact portions  1220 ′, and each contact portion  1220 ′ is in a claw-like shape so material used for forming the contact portion  1220 ′ is a lot, and the first terminal  120 ′ is not installed with any reverse stab structure therefore is not able to be effectively being fastened on a body  1140 ′. 
     The Taiwan Utility Model No. M372020 has disclosed a connector having fastening structure; for avoiding mixing up codes of elements shown in drawings disclosed by the aforesaid patent with codes of elements which will be illustrated in this patent application, each code of the aforesaid patent is added with “″” for discrimination; as shown in  FIG. 2 , a terminal  110 ″ is installed with only two contact portions  1110 ″, material used for forming the terminal  110 ″ is less but the terminal  110 ″ is not installed with any reverse stab structure therefore is not able to be effectively fastened on a body. 
     In view of the disadvantages of conventional power connectors, the present invention provides a novel power connector for improving said disadvantages. 
     SUMMARY OF THE INVENTION 
     One primary object of the present invention is to provide a power connector in which a resilient sheet is inwardly installed on a grounding terminal for providing a buffering effect. 
     Another object of the present invention is to provide a power connector in which a reverse stab is installed on a grounding terminal so as to be fastened on a body for preventing from being released from a body. 
     Still another object of the present invention is to provide a power connector which can reduce material used for forming a terminal and enhance the terminal strength. 
     For achieving the objects mentioned above, the present invention provides a power connector, capable of receiving a plug having an electric conduction terminal, a sleeve and a terminal seat, comprises: a body having a through hole, two sides of the through hole are respectively installed with a guiding slot, two sides of the body are respectively installed with a protrusion; a shield housing, which is hollow and is engaged with the body; a front cover engaged with the shield housing, the front end thereof has an orifice, two sides thereof are respectively installed with a cover hole for accommodating the protrusions and allowing the protrusions to be exposed; a positive column, one end thereof is received in the through hole, the other end thereof has a wire hole and is exposed outside the body; a first grounding terminal inserted in one of the guiding slots, one end thereof has a first terminal hole installed with an inward-retracted first resilient sheet, the other end thereof is bended so as to form a first welding sheet, when the plug is inserted, the first resilient sheet is in contact with the sleeve for providing a buffering effect; and a second grounding terminal inserted in the other guiding slot, one end thereof has a second terminal hole installed with an inward-retracted second resilient sheet, when the plug is inserted, the second resilient sheet is in contact with the sleeve for providing a buffering effect, the other end thereof is outwardly extended with a second welding sheet. 
     For achieving the objects mentioned above, the present invention provides a power connector, capable of receiving a plug having an electric conduction terminal, a sleeve and a terminal seat, comprises: a body having a through hole, two sides of the through hole are respectively installed with a guiding slot, two sides of the body are respectively installed with a protrusion; a shield housing, which is hollow and is engaged with the body; a front cover engaged with the shield housing, the front end thereof has an orifice, two sides thereof are respectively installed with a cover hole for accommodating the protrusions and allowing the protrusions to be exposed; a positive column, one end thereof is received in the through hole, the other end thereof is exposed outside the body and is downwardly bended to form a welding portion; a first grounding terminal inserted in one of the guiding slots, one end thereof has a first terminal hole installed with an inward-retracted first resilient sheet, the other end thereof is downwardly extended with a first welding sheet, when the plug is inserted, the first resilient sheet is in contact with the sleeve for providing a buffering effect; and a second grounding terminal inserted in the other guiding slot, one end thereof has a second terminal hole installed with an inward-retracted second resilient sheet, when the plug is inserted, the second resilient sheet is in contact with the sleeve for providing a buffering effect, the other end thereof is outwardly extended then downwardly bended to form a second welding sheet. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         FIG. 1  is a schematic exploded view of a conventional power connector; 
         FIG. 2  is a schematic exploded view of another conventional power connector; 
         FIG. 3  is a schematic exploded view of the power connector of one preferred embodiment of the present invention; 
         FIG. 4  is a schematic assembly view of the power connector of one preferred embodiment of the present invention; 
         FIG. 5   a  is a schematic cross sectional view of A-A end of the power connector of one preferred embodiment of the present invention; 
         FIG. 5   b  is a schematic cross sectional view of B-B end of the power connector of one preferred embodiment of the present invention; 
         FIG. 6  is a schematic exploded view of the power connector of another preferred embodiment of the present invention; 
         FIG. 7  is a schematic assembly view of the power connector of another preferred embodiment of the present invention; 
         FIG. 8   a  is a schematic cross sectional view of A-A end of the power connector of another preferred embodiment of the present invention; 
         FIG. 8   b  is a schematic cross sectional view of B-B end of the power connector of another preferred embodiment of the present invention. 
     
    
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT 
     Referring from  FIG. 3  to  FIG. 5   b , wherein  FIG. 3  is a schematic exploded view of the power connector of one preferred embodiment of the present invention;  FIG. 4  is a schematic assembly view of the power connector of one preferred embodiment of the present invention;  FIG. 5   a  is a schematic cross sectional view of A-A end of the power connector of one preferred embodiment of the present invention;  FIG. 5   b  is a schematic cross sectional view of B-B end of the power connector of one preferred embodiment of the present invention. 
     As shown in figures, the power connector provided by the present invention is capable of receiving a plug  300 ; the plug  300  includes an electric conduction terminal  310 , a sleeve  320  and a terminal seat  330 ; wherein the electric conduction terminal  310 , the sleeve  320  and the terminal seat  330  are conventional arts and are not the primary features of the present invention, therefore no further illustration is provided. The power connector provided by the present invention comprises: a body  10 ; a shield housing  20 ; a front cover  30 ; a positive column  40 ; a first grounding terminal  50 ; and a second grounding terminal  60 . 
     The body  10  is made of, e.g. but not limited to, plastic material, and is installed with a through hole  11 , two sides of the through hole  11  are respectively installed with a guiding slot  12 , two sides of the body  10  are respectively installed with a protrusion  13 . The top end of the body  10  is further provided with a fastening slot  14  disposed on top of the through hole  11 . 
     The shield housing  20  is made of metal material, e.g. but not limited to stainless steel, and the shield housing  20  is hollow and able to be engaged with the body  10 . 
     The front cover  30  is made of metal material, e.g. but not limited to stainless steel, the front cover  30  is able to be engaged with the shield housing  20  and the front end thereof has an orifice  31 , the sides thereof are respectively installed with a cover hole  32  for accommodating the protrusions  13  and allowing the protrusions  13  to be exposed. 
     One end of the positive column  40  is accommodated in the through hole  11 , the other end thereof has a wire hole  41  and exposed outside the body  10 , the wire hole  41  is provided for installing a conduction wire (not shown). 
     The first grounding terminal  50  is accommodated in the guiding slot  12 , one end thereof has a first terminal hole  51  installed with an inward-retracted first resilient sheet  52 , the other end thereof is inwardly bended to substantially 90 degree then is formed with a first welding sheet  53  installed with a welding hole  54  for being welded on a substrate (not shown). As shown in  FIG. 5   a , when the plug  300  is inserted in the body  10 , firstly the electric conduction terminal  310  is in contact with the positive column  40 , the first resilient sheet  52  is not only served to be in contact with the sleeve  320  for providing a grounding function, but also served to provide a buffering effect of applying longitudinal force on top of the sleeve  320 . Moreover, the other end of the first grounding terminal  50  is further installed with a third terminal hole  55  having an inward-retracted reverse stab  56 . 
     The second grounding terminal  60  is accommodated in another guiding slot  12 , and one end thereof has a second terminal hole  61  installed with an inward-retracted second resilient sheet  62 , the other end thereof is outwardly extended with a second welding sheet  63  having a welding hole  64 , the second resilient sheet  62  is not only served to be in contact with the sleeve  320  for providing a grounding function, but also served to provide a buffering effect of applying longitudinal force below the sleeve  320 . Moreover, the other end of the second grounding terminal  60  is further installed with a fourth terminal hole  65  having an inward-retracted reverse stab  66 . 
     The body  10  of the present invention is further installed with a fastening sheet  15  capable of being received in the fastening slot  14  for fastening the positive column  40 . The fastening sheet  15  is in, e.g. but not limited to, reversed-U shape and is made of metal material, e.g. but not limited to stainless steel. Two sides of the body  10  are respectively and protrudingly installed with a flange  16 . 
     The guiding slots  12  installed on the two sides of the body  10  are further respectively provided with an opening slot  121  for respectively receiving the first reserve stab  56  and the second reserve stab  66 . 
     A distal end of the shield housing  20  is further installed with a third welding sheet  21  having a third welding hole  22 ; the third welding hole  22  is aligned with the first welding hole  54  for being welded on the substrate. 
     As shown in  FIG. 4 ,  FIG. 5   a  and  FIG. 5   b , when the power connector of the present invention is being used with the plug  300 , the plug  300  is inserted in the orifice  31  of the front cover  30  and is continuously being forwardly inserted till two sides of the electric conduction terminal  310  clamp the positive column  40 , such that the front end of the sleeve  320  of the plug  300  is respectively in contact with the front end of the first resilient sheet  52  and the front end of the second resilient sheet  62  so as to be respectively upwardly and downwardly pressed for providing the grounding function, meanwhile the first reverse stab  56  and the second reverse stab  66  are respectively entered the opening slots  121  installed at the two sides of the body  10  for preventing the first grounding terminal  50  and the second grounding terminal  60  from being released from the body  10 , so the connection of the power connector of the present invention and the plug  300  is completed. The power connector of the present invention, compared with conventional power connectors, has following advantages: 1. a resilient sheet is inwardly installed on a grounding terminal for providing buffering function; 2. the grounding terminal is installed with a reverse stab so as to be fastened on the body for preventing from being released from the body; and 3. required material for forming the terminal is reduced and the structure thereof is enhanced. Therefore the power connector of the present invention is novel compared with the conventional power connectors. 
     Referring from  FIG. 6  to  FIG. 8   b , wherein  FIG. 6  is a schematic exploded view of the power connector of another preferred embodiment of the present invention;  FIG. 7  is a schematic assembly view of the power connector of another preferred embodiment of the present invention;  FIG. 8   a  is a schematic cross sectional view of A-A end of the power connector of another preferred embodiment of the present invention;  FIG. 8   b  is a schematic cross sectional view of B-B end of the power connector of another preferred embodiment of the present invention. 
     As shown in figures, the power connector provided by the present invention is capable of receiving a plug  300 ; the plug  300  includes an electric conduction terminal  310 , a sleeve  320  and a terminal seat  330 ; wherein the electric conduction terminal  310 , the sleeve  320  and the terminal seat  330  are conventional arts and are not the primary features of the present invention, therefore no further illustration is provided. The power connector provided by the present invention comprises: a body  110 ; a shield housing  120 ; a front cover  130 ; a positive column  140 ; a first grounding terminal  150 ; and a second grounding terminal  160 . 
     The body  110  is made of, e.g. but not limited to, plastic material, and is installed with a through hole  111 , two sides of the through hole  111  are respectively installed with a guiding slot  112 , two sides of the body  110  are respectively installed with a protrusion  113 . The top end of the body  110  is further provided with a fastening slot  114  disposed on top of the through hole  111 . 
     The shield housing  120  is made of metal material, e.g. but not limited to stainless steel, and the shield housing  120  is hollow and is able to be engaged with the body  110 . 
     The front cover  130  is made of metal material, e.g. but not limited to stainless steel, the front cover  130  is able to be engaged with the shield housing  120  and the front end thereof has an orifice  131 , the sides thereof are respectively installed with a cover hole  132  for accommodating the protrusions  113  and allowing the protrusions  113  to be exposed. 
     One end of the positive column  140  is accommodated in the through hole  111 , the other end thereof is exposed outside the body  110  and downwardly bended to form a welding portion  141  for being installed a substrate  170 . 
     The first grounding terminal  150  is accommodated in the guiding slot  112 , one end thereof has a first terminal hole  151  installed with an inward-retracted first resilient sheet  152 , the other end thereof is downwardly extended with a first welding sheet  153  for being installed on the substrate  170 . As shown in  FIG. 8   a , when the plug  300  is inserted in the body  110 , firstly the electric conduction terminal  310  is in contact with the positive column  140 , the first resilient sheet  152  is not only served to be in contact with the sleeve  320  for providing a grounding function, but also served to provide a buffering effect of applying longitudinal force on top of the sleeve  320 . Moreover, the other end of the first grounding terminal  150  is further installed a third terminal hole  155  having an inward-retracted reverse stab  156 . 
     The second grounding terminal  160  is accommodated in another guiding slot  112 , and one end thereof has a second terminal hole  161  installed with an inward-retracted second resilient sheet  162 , the other end thereof is outwardly extended then downwardly bended to form a second welding sheet  163 , the second grounding terminal  160  is not only served to be in contact with the sleeve  320  for providing a grounding function, but also served to provide a buffering effect of applying longitudinal force below the sleeve  320 . Moreover, the other end of the second grounding terminal  160  is further installed a fourth terminal hole  165  having an inward-retracted reverse stab  166 . 
     The body  110  of the present invention is further installed with a fastening sheet  115  capable of being received in the fastening slot  114  for fastening the positive column  140 . The fastening sheet  115  is in, e.g. but not limited to, reversed-U shape and is made of metal material, e.g. but not limited to stainless steel. 
     The guiding slots  112  installed on the two sides of the body  110  are further respectively provided with an opening slot  1121  for respectively receiving the first reserve stab  156  and the second reserve stab  166 . 
     Moreover, two sides of the shield housing  120  of the present invention are further respectively installed with a protruding sheet  122  for being installed and welded on the substrate  170 . 
     As shown in  FIG. 7 ,  FIG. 8   a  and  FIG. 8   b , when the power connector of the present invention is being used with the plug  300 , the plug  300  is inserted in the orifice  131  of the front cover  130  and is continuously being forwardly inserted till two ends of the electric conduction terminals  310  clamp the positive column  140 , such that the front end of the sleeve  320  of the plug  300  is respectively in contact with the front end of the first resilient sheet  152  and the front end of the second resilient sheet  162  so as to be respectively upwardly and downwardly pressed, meanwhile the first reverse stab  156  and the second reverse stab  166  are respectively entered the opening slots  1121  installed at the two sides of the body  110  for preventing the first grounding terminal  150  and the second grounding terminal  160  from being released from the body  110 , so the connection of the power connector of the present invention and the plug  300  is completed. The power connector of the present invention, compared with conventional power connectors, has following advantages: 1. a resilient sheet is inwardly installed on a grounding terminal for providing buffering function; 2. the grounding terminal is installed with a reverse stab for being fastened on the body for preventing from being released from the body; and 3. required material for forming the terminal is reduced and the structure thereof is enhanced. Therefore the power connector of the present invention is novel compared with the conventional power connectors. 
     It is to be understood, however, that even though numerous characteristics and advantages of the present embodiments have been set forth in the foregoing description, together with details of the structures and functions of the embodiments, the disclosure is illustrative only, and changes may be made in detail, especially in matters of shape, size, and arrangement of parts within the principles of the invention to the full extent indicated by the broad general meaning of the terms in which the appended claims are expressed.