Abstract:
The present invention relates to an electrical connector, comprises a housing; a first connector; a second connector, wherein the second connector is disposed below the first connector and has a transmission speed different from the first connector; a driving member; an actuation rod; a driving spring; a lock sheet; an actuation spring; and a torsion spring. With the mentioned structure, the electrical connector is able to be plugged with a USB2.0 connector plug or a USB3.0 connector plug for satisfying requirements of various transmission speeds.

Description:
BACKGROUND OF THE INVENTION 
     1. Field of the Invention 
     The present invention relates to an electrical connector, more particularly to an electrical connector installed with a first USB connector and a second USB connector having different transmission speeds for satisfying requirements of various transmission speeds. 
     2. Description of Related Art 
     Periphery devices having USB interfaces are provided with plug-and-play functions, so once relative products are launched, they often catch consumers&#39; attentions. The protocol of USB2.0 can provide a transmission speed up to 480M bit/sec. With developments of multi media technologies, downloading a 25 GB multi media file, with the USB2.0 protocol, may take a long time, so such low action could not really satisfy consumer&#39;s needs. Therefore the USB3.0 protocol has been established, the USB3.0 protocol can provide a transmission speed up to 4.8 G bit/sec, so downloading the same 25 G multi media file only take 1/10 of the consumed time of the USB2.0 protocol. 
     But the USB2.0 protocol is still the main stream in the market, and most of periphery devices installed with USB interfaces mainly support the USB2.0 protocol, so it is a crucial issue to design an electrical connector supporting both of the USB2.0 and USB3.0 protocols. 
     The US Patent Publication No. US2009/0088024A has disclosed a high speed connector and receptacle with backward compatibility to USB2.0, as disclosed in the abstract of said patent application, the connector plug includes a plurality of USB2.0 pins and one or more pins supporting high speed transmission, so the connector plug can support both of the USB2.0 and higher-speed USB plugs. As shown in  FIG. 1  and  FIG. 3  of the mentioned patent application, the plug and the socket of the connector respectively need a groove for preventing a false insertion, but such arrangement does not comply with the specification of USB2.0 protocol, the compatibility thereof is then lowered and production cost may be raised. 
     SUMMARY OF THE INVENTION 
     One primary object of the present invention is to provide an electrical connector installed with a first USB connector and a second USB connector having different transmission speeds for satisfying requirements of various transmission speeds. 
     For achieving the mentioned object, the present invention provides an electrical connector, comprises: a housing; a first connector received in the housing and one end thereof is exposed outside the housing; a second connector received in the housing and one end thereof is exposed outside the housing, wherein the second connector is disposed below the first connector and has a transmission speed different from the first connector; a driving member received in the housing and disposed at one side of the first connector, one end thereof is installed with an accommodation room, the rear end of the accommodation room is installed with a tenon; an actuation rod received in the accommodation room, one end thereof is exposed outside the accommodation room and is aligned with the second connector; a driving spring installed at the exterior of the accommodation room; a lock sheet disposed on top of the driving member and has a lock slot for receiving the tenon; an actuation spring received in the accommodation room and installed at the exterior of the actuation rod; and a torsion spring installed at one side of the housing, one end thereof is abutted against the bottom end of the first connector. 
     For achieving the mentioned object, the present invention also provides an electrical connector, comprises: a housing having an upper housing and a lower housing, the upper housing is able to be engaged with the lower housing, and the lower housing is installed with a chamber, one side of the lower housing is installed with a round column; a first connector received in the chamber and one end thereof is exposed outside the housing, the other end thereof is extended with a fastening sheet; a second connector received in the chamber and one end thereof is exposed outside the housing, wherein the second connector is disposed below the first connector and has a transmission speed different from the first connector; an actuation rod received in the chamber and disposed at one side of the first connector, one end thereof is installed with an actuation slot for receiving the round column, the other end thereof is exposed outside the lower housing and is aligned with the second connector, a tenon is installed thereon; a lock sheet installed on the top end of the actuation rod and has a lock slot for receiving the tenon; an actuation spring installed at the exterior of the round column, one end thereof is abutted against the actuation slot; and a resilient member received in the chamber, one end thereof is fastened in the lower housing, the other end thereof is fastened on the fastening sheet. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         FIG. 1  is a schematic exploded view of the electrical connector of one embodiment of the present invention; 
         FIG. 2  is a perspective view of the assembly of the electrical connector of one embodiment of the present invention; 
         FIG. 3  is a schematic view illustrating the action of locking status of the electrical connector of one embodiment of the present invention; 
         FIG. 4  is a schematic view illustrating the action of unlocking status of the electrical connector of one embodiment of the present invention; 
         FIG. 5  is a schematic exploded view of the electrical connector of another embodiment of the present invention; 
         FIG. 6  is a perspective view of the assembly of the electrical connector of another embodiment of the present invention; 
         FIG. 7  is a schematic view illustrating the action of locking status of the electrical connector of another embodiment of the present invention; 
         FIG. 8  is a schematic view illustrating the action of unlocking status of the electrical connector of another embodiment of the present invention. 
     
    
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT 
     Referring from  FIG. 1  to  FIG. 4 , wherein  FIG. 1  is a schematic exploded view of the electrical connector of one embodiment of the present invention;  FIG. 2  is a perspective view of the assembly of the electrical connector of one embodiment of the present invention;  FIG. 3  is a schematic view illustrating the action of locking status of the electrical connector of one embodiment of the present invention;  FIG. 4  is a schematic view illustrating the action of unlocking status of the electrical connector of one embodiment of the present invention. 
     As shown in figures, the electrical connector provided by the present invention comprises: a housing  10 , a first connector  20 , a second connector  30 , a driving member  40 , an actuation rod  50 , a driving spring  60 , a lock sheet  70 , an actuation spring  80  and a torsion spring  90 . 
     The housing  10  is made of insulation material, e.g. but not to plastic material, and is further installed with a first chamber  11  and a second chamber  12 ; two ends of the first chamber  11  is further provided with a first guide slot  111  and a second guide slot  112 , the first guide slot  111  is provided for guiding the first connector  20  to be received in the first chamber  11 , the second guide slot  112  is provided for guiding the second connector  30  to be received in the first chamber  11 , the second chamber  12  is disposed at one side of the first chamber  11 , e.g. but not limited to the right side, for receiving the lock sheet  70 . 
     The first connector  20  is installed in the housing  10 , and one end thereof is exposed outside the housing  10 ; wherein the first connector  20  is, e.g. but not limited to, a USB3.0 connector and a wire hole  22  is installed at the rear end thereof and the wire hole  22  is exposed outside the housing  10 , for receiving a USB3.0 cable (not shown) and entering the first USB connector  20 . 
     The second connector  30  is installed in the housing  10 , and one end thereof is exposed outside the housing  10 ; wherein the second connector  30  is disposed below the first connector  20  and the transmission speed thereof is different from that of the first connector  20 ; wherein the second connector  30  is, e.g. but not limited to, a USB2.0 connector, a wire hole  32  is installed at the rear end thereof and the wire hole  32  is exposed outside the housing  10 , for receiving a USB2.0 cable and entering. 
     The driving member  40  is installed in the housing  10  and disposed at one side of the first connector  20 , e.g. but not limited to the right side, one end thereof is installed with an accommodation room  41 , the rear end of the accommodation room  41  is further installed with a tenon  42 . The rear end of the driving member  40  is further installed with a notch  43  so that one end of the actuation rod  50  is able to pass through. 
     The actuation rod  50  is received in the accommodation room  41 , and one end thereof is exposed outside the accommodation room  41  and is aligned with the second connector  30 , the other end of the actuation rod  50  passes through the notch  43 . The actuation rod  50  is further provided with a latching portion  51  in a round shape and having an outer diameter larger than the actuation spring  80  for pressing the actuation spring  80  during movement. 
     The driving spring  60  is installed at the exterior of the accommodation room  41 ; the driving member  40  is able to be recovered through the elastic force of the driving spring  60 . 
     The lock sheet  70  is disposed on top of the driving member  40 , and has a lock slot  71  for receiving the tenon  42 , and the lock slot  71  is installed in an oblique means. 
     The actuation spring  80  is received in the accommodation room  41  and installed at the exterior of the actuation rod  50 , so the actuation rod  50  is able to be recovered through the elastic force of the actuation spring  80 . 
     The torsion spring  90  is installed at one side of the housing  10 , e.g. but not limited to the left side, one end thereof is abutted against the bottom end of the first connector  20 , the other end thereof is abutted against the housing  10 ; wherein the torsion spring  90  is, e.g. but not limited to, a metal-made spring. 
     The first chamber  11  of the present invention is further installed with an open slot  113 , and a cross-shaped convex sheet  13  is installed on the housing  10  and below the open slot  113 , so the torsion spring  90  is able to be installed at the exterior of the cross-shaped convex sheet  13 , two ends of the torsion spring  90  are respectively disposed in the open slot  113 , wherein one end thereof is abutted against the bottom end of the first connector  20  through one end of the open slot  113 , the other end is abutted against the other end of the open slot  113  so as to fasten the torsion spring  90  on the housing  10 . 
     As shown in  FIG. 3 , after being assembled, when a USB2.0 device (not shown) is inserted in the second connector  30 , one end of the USB2.0 device is abutted against the actuation rod  50 , so when the USB2.0 device is further forwardly moved, the actuation rod  50  is driven to forwardly move about 8-12 mm and the actuation spring  80  is driven to move about 3 mm, and the tenon  42  is synchronously and leftwardly moved 3 mm for entering an unlock position, so as to unlock the first connector  20 , and the USB2.0 device presses the first connector  20  into the housing  10  so the USB2.0 device is able to be directly connected to the second connector  30 . 
     As shown in  FIG. 4 , when the USB2.0 device is removed from the second connector  30 , the first connector  20  is forwardly pushed through the elastic force of the torsion spring  90 , and the tenon  42  is rightwardly moved 3 mm for entering a lock position, so that the first connector  20  is locked, and the actuation rod  50  is forwardly moved to its original position through the elastic force of the driving spring  60 , so a USB3.0 device (not shown) is able to be inserted in the first connector  20 . The present invention provides the first USB connector  20  and the second USB connector  30  having a different transmission speed regarding to the first USB connector  20 , therefore requirements of different transmission speeds are satisfied, and is novel compared to conventional electrical connectors. 
     Referring from  FIG. 5  to  FIG. 8 , wherein  FIG. 5  is a schematic exploded view of the electrical connector of another embodiment of the present invention;  FIG. 6  is a perspective view of the assembly of the electrical connector of another embodiment of the present invention;  FIG. 7  is a schematic view illustrating the action of locking status of the electrical connector of another embodiment of the present invention;  FIG. 8  is a schematic view illustrating the action of unlocking status of the electrical connector of another embodiment of the present invention. 
     As shown in figures, another embodiment of the electrical connector of the present invention comprises: a housing  210 , a first connector  220 , a second connector  230 , an actuation rod  250 , a lock sheet  270 , an actuation spring  280  and a resilient member  290 . 
     The housing  210  is made of insulation material, e.g. but not limited to plastic material, and is further installed with an upper housing  211  and a lower housing  212 , the upper housing  211  is able to be engaged with the lower housing  212 , and the lower housing  212  is provided with a chamber  213 , a round column  214  is installed at one side of the lower housing  212 , the round column  214  is connected to one side of the lower housing  212  and is spaced away from the bottom end of the lower housing  212  with an interval, so the actuation spring  280  is able to move on the round column  214 . 
     The lower housing  212  is further installed with a lock base  215 , the upper housing  211  is installed with a lock hole  216 , so a screw  217  can be used to pass through the lock hole  216  for fastening the upper housing  211  to the lower housing  212 . One side of the lower housing  212  is installed with a wire hole  218  for allowing a USB cable passing and entering the first connector  220  and the second connector  230 . 
     The first connector  220  is received in the chamber  213 , one end thereof is exposed outside the housing  210 , the other end thereof is extended with a fastening sheet  221  along a horizontal direction; wherein the first connector  220  is, e.g. but not limited to, a USB3.0 connector, and the bottom end thereof is installed with a guiding protrusion  222 , e.g. but not limited to a rectangular guiding protrusion. 
     The second connector  230  is received in the chamber  213  and one end thereof is exposed outside the housing  210 ; wherein the second connector  230  is disposed below the first connector  220 , and has a different transmission speed regarding to the first connector  220 ; wherein the second connector  230  is, e.g. but not limited to, a USB2.0 connector, the top end thereof is installed with a concave slot  231  for allowing the guiding protrusion  222  fastening and sliding. 
     The actuation rod  250  is received in the chamber  213  and is disposed at one side of the first connector  220 , e.g. but not limited to the right side, a bottom portion of one end thereof is installed with an actuation slot  251  for receiving the round column  214 , the other end thereof is exposed outside the lowering housing  212  and is aligned with the second connector  230 , a tenon  252  is installed thereon. 
     The lock sheet  270  is disposed on top of the actuation rod  250 , and has a lock slot  271  for receiving the tenon  252 , and the lock slot  271  is installed in an oblique means. The lock slot  271  is defined as a bended portion  2711  and a linear portion  2712 , and the length of the bended portion  2711  is, e.g. but not limited to, 3 mm. 
     The actuation spring  280  is installed at the exterior of the round column  214 , one end thereof is abutted against the actuation slot  251 , so the actuation rod  250  is able to be recovered through the elastic force of the actuation spring  280 . 
     The resilient member  290  is installed in the chamber  213 , end of thereof is fastened on the lower housing  212 , the other end thereof is fastened on the fastening sheet  221 ; wherein the resilient member  290  is, e.g. but not limited to, a metal-made spring. 
     Moreover, the electrical connector of the present invention is further installed with a U-shaped block sheet  295  fastened on the top end of the first connector  220 , and a convex column  296  is installed thereon for fastening the other end of the resilient remember  290 . 
     As shown in  FIG. 7 , after being assembled, when a USB2.0 device (not shown) is inserted in the second connector  230 , one side of the USB2.0 device is abutted against the actuation rod  250 , when the USB2.0 device is further forwardly moved, the actuation rod  250  is driven to forwardly move about 8-12 mm, and the actuation spring  280  is driven to upwardly move about 8-12 mm on the round column  214 , so that the actuation spring  280  is compressed, and the tenon  252  is synchronously moved in the bended portion  2711 , the lock sheet  270  is therefore driven to rightwardly move 3 mm for entering an unlock position, so as to unlock the first connector  220 , and the first connector  220  is pressed into the housing  210  through the USB2.0 device. 
     As shown in  FIG. 8 , when the USB2.0 device is removed from the second connector  230 , the actuation rod  250  is forwardly pushed to its original position through the elastic force of the actuation spring  280 , and the tenon  252  is driven to rightwardly move about 3 mm for entering a lock position, the first connector  220  is forwardly pushed through the elastic force of the resilient member  290 , and one corner of the lock sheet  270  is served to block the first connector  220  so as to lock the first connector  220 . Thus, this another embodiment of the present invention provides the first USB connector  220  and the second USB connector  230  having a different transmission speed regarding to the first USB connector  220 , therefore requirements of different transmission speeds are satisfied, and is novel compared to conventional electrical 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.