Patent Publication Number: US-6986684-B1

Title: Internal structure for connector with coil positioning seats

Description:
BACKGROUND OF THE INVENTION 
     1. Field of the Invention 
     The present invention is related to an internal structure of a connector with at least a coil positioning seat, and especially to an internal structure of a connector of which coils are received in the coil positioning seat to make easy of connection with a circuit board. 
     2. Description of the Prior Art 
     In the internal structure of an electric communication connector, a plurality of coils must be provided on an electric circuit board to get the function of wave filtering and abnormal voltage isolating. Particularly for the present time, eight pins in a high-speed communication connector will all be used, thereby there must be eight coils provided for each high-speed communication connector; the number of pins is larger than that requested before. In a conventional internal structure, coils are randomly assembled on a printed circuit board in a floating sticking mode, such a mode of processing renders the lower ones of the coils to be not accurately positioned, thus the feature of an article resulted is unstable and it is worriable that there is latent quality blemish. And one thing even more cumbersome, the work of connecting of the eight coils with the circuit board is quite difficult; assembling of a conventional technical structure must be done by a skillful technician to complete, it is time consuming and not benefit to production, thereby the conventional technical structure has to be improved. 
     The present invention is pertinent to a U.S. patent application Ser. No. 10/732,293 which has been approved for granting a certificate of patent right and has a corresponding R.O.C. utility model application No. 92,216,829 and titled “POSITIONING SEAT WITH NETS FOR COILS FOR A CONNECTOR” belonging to the same applicant as that of the present application. 
     In these preceding applications, a positioning seat with nests for coils for a connector is provided, the internal structure of an electric communication connector has a printed circuit board having a resistance-capacitance (RC) element, the printed circuit board is connected thereon with a plurality of coils for wave filtering and abnormal voltage isolating; in this structure, the plural coils are positioned by a positioning device formed from the seat and a lateral connecting plate connectable with the seat as well as connecting in advance with metallic guide needles; the seat is shaped in advance to have a plurality of nests mutually spaced away and in an amount same as that of the coils; so that every coil can be placed in a nest in advance for using in the operation of electric connecting with related members and the printed circuit board. Wherein each nest can be provided with slits with different depths on the top surface near the periphery of the nest, between a nest and the other, and between each nest and an external edge of the seat in pursuance of the mode of electric connecting required. 
     With such a structure of these preceding applications, the feature and quality of its products are more stable and reliable; and processing of such a connector is simplified, dependence of the processing quality of its products on the skillfulness of operators is largely reduced and thus cost of production can be lowered; further, examination of its semi-finished products is easy and cost of working hours can be lowered, quality of mass production of the connector on its production line can be elevated, and the connector is suitable for mass production with divisional stages in processing to increase the efficiency of production. 
     However, the connector is applied mainly to connection in electric communication, with increasing speed of communication transmitting and receiving at the present time such as by using broadband, to render all the eight pins of the connector to have to be used; relatively, the number of coils provided for the connector must be increased to eight. The structure as disclosed in the preceding applications is unable to be provided with more coils; thereby the connector has to be improved. 
     SUMMARY OF THE INVENTION 
     The present invention provided for a connector has an internal structure with at least a coil positioning seat, the structure has a circuit board assembly designed to include two mutually separated (a first and a second) circuit boards; the positioning seat is provided in an interspace between the first and the second circuit boards and has therein a plurality of coils; all the connecting lines of the coils are pulled to one side of the positioning seat in advance to be connected with the circuit board assembly, so that an object of connecting the coils with the circuit board assembly is very easy attained. 
     The present invention further uses a plurality of positioning seats with nests, each positioning seat has a surface on an outer side thereof shaped in advance to have a plurality of mutually spaced nests mating in number with the coils; wherein two nest-typed positioning seats are provided between a first and a second circuit board; and the coils are respectively mounted in the mutually spaced nests, they are connected with a circuit board assembly via slits on surfaces of the positioning seats, so that the entire connector has the function of wave filtering and abnormal voltage isolating. 
     The main object of the present invention is to provide an internal structure of a connector with at least a coil positioning seat, each coil can be easily mounted in a nest of a coil positioning seat, and each coil is effectively isolated to surely get an effect of protection. 
     Another object of the present invention is to provide an internal structure of a connector with at least a coil positioning seat; by having a first and a second circuit board both perpendicular to a lateral connecting board and two positioning seats allocated between the first and the second circuit boards, the internal structure basically has a cubic contour, and is very easily to be fixed on the lateral connecting board, this can save much working hours and lower the cost of production. 
     The present invention will be apparent in its structure and features after reading the detailed description of the preferred embodiment thereof in reference to the accompanying drawings. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         FIG. 1  is a perspective view of a preferred embodiment of the present invention; 
         FIG. 2  is an analytic perspective view showing the elements in the internal structure of the present invention; 
         FIG. 3  is a front sectional view showing the internal structure of the present invention; 
         FIG. 4  is a top sectional view showing the internal structure of the present invention; and 
         FIG. 5  is a sectional side view of another embodiment of the present invention. 
     
    
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT 
     Referring to  FIGS. 1–4  showing the arrangement of a nest-typed positioning seat, the connector used for the present invention has therein an internal structure  10  having a plurality of positioning seats to separate coils; the internal structure  10  is covered with a metallic housing  30  to form a communication connector. 
     Referring to  FIGS. 2–4 , the internal structure  10  of the present invention mainly has a lateral connecting board  11  which is provided thereon in advance with a plurality of metallic guide pins (electrical contacts)  111 ; in a network-card connector such as RJ45 used at the present time, there are eight guide pins (electrical contacts)  111 . The lateral connecting board  11  is provided thereon at one side of it with a circuit board assembly  12  having a resistance-capacitance (RC) element  123 . 
     The circuit board assembly  12  is composed, in addition to the resistance-capacitance (RC) element  123 , of a first circuit board  121  and a second circuit board  122 . The first and the second circuit boards  121 ,  122  are spaced away and vertically provided on and at one side of the lateral connecting board  11 . The metallic guide pins (electrical contacts)  111  on the lateral connecting board  11  are all electrically connected with the second circuit board  122 . 
     It is important thing of the present invention that, two nest-typed positioning seats  131 ,  132  for receiving coils  14  are provided between the first and the second circuit boards  121 ,  122 . While the resistance-capacitance (RC) element  123  straddling the first and the second circuit boards  121 ,  122  is exactly allocated between the two mutually opposite lateral inner sides of the first and the second circuit boards  121 ,  122 , this can reduce the volume of the entire connector. 
     One thing worth mentioning, the first and the second circuit boards  121 ,  122  and the two nest-typed positioning seats  131 ,  132  form a cubic contour. This renders the coils  14  to be very easily assembled in the nests of the positioning seats  131 ,  132  and connected with the first and the second circuit boards  121 ,  122 ; and such a structure with a cubic contour can be very easily assembled and fixed on the lateral connecting board  11 . 
     Certainly, as shown in  FIG. 2 , the mutually separated positioning seats  131 ,  132  respectively have four nests  21 ; this is designed for the two positioning seats  131 ,  132  with eight metallic guide pins (electrical contacts)  111 . And slits  22 ,  23  with different depths are provided on the periphery of each nest  21 , between the nest  21  and another nest  21 , and between the nest  21  and an external edge of the seats  131 ,  132 , so that connecting lines of coils  14  can be extended through the slits  22  or  23  to make electric connecting with the first circuit board  121  or the second circuit board  122 . This is similar to the structure of the above stated preceding applications being regarded as a prior art. 
     Number of the nest-typed positioning seats of the present invention is not limited to two, in pursuance of requirement, the number of the nest-typed positioning seats mounted between the first and the second circuit boards  121 ,  122  can be increased, but it is preferred that the nest-typed positioning seats form a cubic contour with the first and the second circuit boards  121 ,  122 , so that they can be assembled on the lateral connecting board  11  conveniently. And the number of the nests  21  can also be adjusted in pursuance of requirement; they are not limited to four. 
     Number of the nest-typed positioning seats of the present invention can be one, but it is designed to have therein eight nests for mounting coils, this is an alternative of the present invention and also falls in the scope of the present invention. 
     Referring to  FIGS. 2 and 3 , contact areas of the positioning seat  132  of the present invention contacting with the first and the second circuit boards  121 ,  122  form flanges  24 , thereby space for welding spots can be provided for the coils  14  and the first and the second circuit boards  121 ,  122 , 
     In order to reduce the space for arranging the coils  14 , the nests  21  on the positioning seat  132  are square, so that the coils  14  can be mounted in the square nests  21  of the positioning seat  132  along a radial direction. 
     And more, referring to  FIG. 5 , a positioning seat  50  of the present invention is in the form of a frame which is a square frame in the drawing; coils  54  are received in the frame, they can be tidily or randomly arranged, but their connecting lines are pulled to the outside of the positioning seat  50  to form a structure as a module of the coils  54 , this can get a principal effect of conveniently connecting with a circuit board assembly  62 . 
     The internal structure of a connector with at least a coil positioning seat of the present invention surely can get the effect of easy assembling and sure separation, particularly it is evidently advanced technically over the conventional method in the number of metallic guide pins (electrical contacts) used in pursuance of variation of structure design. Having thus described the technical structure of my invention with practicability and improvement, what I claim as new and desire to be secured by Letters Patent of the United States are: