Abstract:
A USB connector structure, configured with a combination structure of a base, a main structure, a plural of pins and a fixing structure, to enable said plural pins to be configured on the conducting pads without soldering process and to provide a convenient assembly by firmly hooking and fastening both the main structure and the fixing structure over the base. And, the present invention can be applied in various USB connectors or similar connecting structure.

Description:
BACKGROUND OF THE INVENTION 
     1. Field of the Invention 
     The present invention relates to a USB connector structure, comprising a base, a main structure, a plural of pins and a fixing structure, wherein the main structure and the fixing structure are configured over the base and are formed as a whole body by firmly hooked with each other, and one side of those pins are configured as bending ends which extend outside of the main structure and provide electric contact with those conducting pads laid on the base correspondingly. Therefore, the present invention enables those pin applied in the USB connector structure a convenient assembly without traditional soldering procedure, and provides a more convenient and efficient method to shorten prior USB connector manufacturing process. 
     2. Description of Prior Art 
     The USB connectors had been adopted as a standard port to act as a transmission interface between the computer and external peripherals. Especially, USB connectors are popularly used in memory storage device and equipped with function of ‘hot plugging’ or ‘plug and play’ 
     As to the manufacturing process of the prior USB connectors, the conducting pins are soldered on the base. However, there is an earlier ‘DIP-dual in-line package’ job to be finished in advance. Then, the soldering process is carried out. And, there must be a soldering check to make sure those pins are soldered on the base without extra or less tin used, and the USB connector can provide a satisfied transmission test. Finally, a USB connector is produced and to be used as an interface described above. 
     The soldering procedure takes a considerable time consuming during the USB connector manufacturing. There are nine pins adopted in standard USB 3.0 connectors and the soldered tin might lead to an inferior conducting effect after many times plug-in and pull-out. And, it also reduces the speed of data transmission and, furthermore, data or memory is damaged and can not be retrieved. 
     In view of the above discussed problems, the present invention aims to provide a convenient assembly without traditional soldering procedure, and provides a firmly joint structure, a convenient and efficient method to shorten prior USB connector manufacturing process. Therefore, the prior USB connectors need to be improved. 
     SUMMARY OF THE INVENTION 
     The primary object of the present invention is to provide a USB connector structure, comprising a base, a main structure, a plural of pins and a fixing structure, wherein both the main structure and the fixing structure are configured over the base and are formed as a whole body by firmly hooked and fastened with each other, and one side of those said pins are configured as bending ends which extend outside of the main structure and provide electric contact with those conducting pads laid on the base correspondingly. Therefore, the present invention enables those pin applied in the USB connector structure a convenient assembly free from traditional soldering procedure, and provides a more convenient and efficient method to shorten prior USB connector manufacturing process. 
     Another object of the present invention is to provide a USB connector structure, wherein both the fixing structure and the main structure are configured as various joint combinations which enable a strong fastening assembly between each part. And, the clipping arm is configured either in the main structure or the fixing structure to provide a fastening function with the base. Thus, the present invention provides a better and simple joint structure. 
     And, one more object of the present invention is to provide a USB connector structure, wherein the bottom side of the fixing structure is further configured with a step rabbet which provides a pushing effect and accommodates those pins extended outside the main structure to enable the curve part of each bending edge having a tight and better electric contact with those conducting pads laid on the base correspondingly. This joint structure can reduce transmission error or hardware damage caused by frequent plug-in and pull-out or vibration. Obviously, the present invention does not only provide a useful structural combination for the manufacturer, but also enhance the transmission function and safety for the ordinary USB interface user. 
     By above-mentioned description, the present invention is applicable to provide a USB connector structure with a more efficient manufacturing process and a more reliable hardware structure. Above all, the present invention is assembled free from soldering process which provides a convenient and efficient method to shorten prior USB connector manufacturing process. 
     The function and structure of practical embodiments can be further understood via the drawings listed below. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS AND ELEMENTS 
       The present invention can be fully understood from the following detailed description and preferred embodiment with reference to the accompanying drawings, in which: 
         FIG. 1  illustrates a three-dimensional schematic view of the present invention. 
         FIG. 2  illustrates a three-dimensional decomposition view of the present invention. 
         FIG. 3  illustrates an A-A schematic cross-section view of the present invention. 
         FIG. 4  illustrates a schematic combination of the base and pins related to the first embodiment of the present invention. 
         FIG. 5  illustrates another schematic bottom view of the fixing structure related to the present invention. 
         FIG. 6  illustrates a schematic combination of the base and pins related to the second embodiment of the present invention. 
         FIG. 7  illustrates a partial perspective view related to the external cover of the present invention. 
         FIG. 8  illustrates a schematic cross-section view related to the external cover of the present invention. 
         FIG. 9  illustrates a three-dimensional schematic view related to the second embodiment of the present invention. 
         FIG. 10  illustrates a three-dimensional decomposition view of the second embodiment. 
         FIG. 11  illustrates an A-A schematic cross-section view of the second embodiment. 
         FIG. 12  illustrates a three-dimensional schematic view related to the third embodiment of the present invention. 
         FIG. 13  illustrates a three-dimensional decomposition view of the third embodiment. 
         FIG. 14  illustrates an A-A schematic cross-section view of the third embodiment. 
     
    
    
     The elements related to the present invention are listed as follows: 
     
       
         
               
               
               
               
             
           
               
                   
               
             
             
               
                  10, 
                 base 
                  11, 
                 conducting pad 
               
               
                  20, 
                 main structure 
                  21, 
                 pin rabbet 
               
               
                  22, 
                 holding block 
                  23, 
                 side rabbet 
               
               
                  24, 
                 front stopper 
                  25, 
                 clipping arm 
               
               
                  26, 
                 notch 
                  27, 
                 rabbet 
               
               
                  30, 
                 pin 
                  31, 
                 bending end 
               
               
                  40, 
                 fixing structure 
                  41, 
                 coupling arm 
               
               
                  42, 
                 side arm 
                  43, 
                 hook 
               
               
                  44, 
                 rear stopper 
                  45, 
                 clipping arm 
               
               
                  46, 
                 coupling hook 
                  47, 
                 notch 
               
               
                  48, 
                 step rabbet 
                  49, 
                 side rib 
               
               
                  50, 
                 external cover 
                  51, 
                 protruding rib 
               
               
                  60, 
                 casing 
                 221, 
                 side rib 
               
               
                 241, 
                 sloping edge 
                 271, 
                 stopper 
               
               
                 411, 
                 hook 
                 421, 
                 protruding rib 
               
               
                   
               
             
          
         
       
     
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS 
     Referring to  FIGS. 1˜14 , the present invention relates to a USB connector structure and comprises a base  10 , a main structure  20 , a plural of pins  30  and a fixing structure  40 , wherein a plural of conducting pads  11  are laid on top of base  10  and the main structure  20  is configured over the base  10 . The main structure  20  is configured with pin rabbets  21  to have one side accommodate pins  30  respectively. And, the other side of pins  30 , passing through the main structure  20 , are configured as bending ends  31  which extend outside of the main structure  20  and provide electric contact with those conducting pads  11  laid on the base correspondingly. The fixing structure  40  is also configured over the base  10 . And, the fixing structure  40  is formed as a whole body with the main structure  20  by firmly hooked and fastened with each other. The bottom side of the fixing structure  40  is further configured with a step rabbet  48  which provides a pushing effect and accommodates those pins  30  extended outside the main structure  20  to enable the curve part of each bending end  31  having a tight and better electric contact with those conducting pads  31  laid on the base  10  correspondingly. 
     Meanwhile, both corners of the main structure  20  toward the fixing structure  40  side are further configured with a holding block  22  formed as a L-shape structure (as shown in  FIG. 4 ). Both holding blocks  22  are configured with side ribs  221  at top and side position. And, the middle part of the fixing structure  40  is both side configured with a coupling arm  41  respectively and the front end of the said coupling arm  41  is further configured as a hook  411  structure (as shown in  FIG. 7 ) to firmly fasten and couple with each holding block  22  forming as a whole body over the base  10 . Besides, both sides of the fixing structure  40  are forward extended as a step-like side arm  42  which is further configured with a protruding rib  421  located toward the inner side to fit with the side rabbets  23  configured at both sides of the main structure  20  near the bottom position of each pin  30 . And, the front side of the main structure  20  is configured as a front stopper  24 , with a sloping edge  241  at the upper end, to hold against the front end of base  10 . Both lower corners are further extended backward as a clipping arm  25  respectively to have a tight clip-on connection with the front end of base  10 . 
     Alternatively (as shown in  FIG. 10 ), there is another embodiment for the main structure  20  and the fixing structure, wherein the main structure  20  is configured with notches  26  at the top position to fit those hooks  43  extended from the front of the fixing structure  40 . And, this joint connection enables the fixing structure  40  to firmly fasten with the main structure  20 . The back side of fixing structure  40  is configured as a rear stopper  44  to hold against the back end of base  10 . Both lower sides of the fixing structure  40  are extended and configured with clipping arms respectively to have a tight clip-on connection with the base  10 . 
     Furthermore, the top side of the main structure  20  is configured with a rabbet  27  (as shown in  FIG. 13 ) over those pins penetrating through and a stopper  271  to fit the coupling hook  46  extended from the font bottom position of the fixing structure  40  to provide another embodiment for the joint connection of the fixing structure  40  and the main structure  20 . Both rear corners are respectively configured with a notch  47  at the lower position to fit with an external cover  50 , located at the lower side and formed with a protruding rib  51  both at the rear corner, and to offer a tight clip-on connection for the base  10  between the fixing structure  40  and the external cover  50 . And, the lower inner side of the fixing structure  40  is configured as a step rabbet  48  to provide a pushing effect and accommodate those pins  30  extended outside the main structure to enable the curve part of each bending edge  11  having a tight and better electric contact with those conducting pads  31  laid on the base  10  correspondingly. Finally, the joint structure of the base  10 , the main structure  20  and the fixing structure  40  are inserted into and close wrapped by a casing  50  (not shown) to form as a complete USB connector structure. 
     Please refer to the  FIGS. 1˜14 , which shows schematic views related to the various embodiments of the present invention. The primary purpose is to provide a connecting method and structure free soldering procedure during the manufacturing process. Thus, the joint structure of the main structure  20  and the fixing structure  40  are firmly configured over the base  10 . And, the present invention can be applied in different types of USB interface. 
     Of course, it is to be understood that the embodiments described herein are merely some illustrations related to the objects of the invention and that a wide variety of modifications thereto may be adopted without departing from the purpose and the scope of the present invention as set forth in the following claims.