Abstract:
The present invention relates to a method for winding wires of electrical connector, which includes adopting a unique process to wind wires around a ring body, wherein first and second wire groups each including four different color wires are respectively wound around upper and lower half portions of the ring body and respectively forming first and second input terminal wires and first and second output terminal wires. The first and second input terminal wires are twisted with corresponding ones to thereby achieve reduction of reluctance and better application to high frequency signals.

Description:
TECHNICAL FIELD OF THE INVENTION 
     The present invention generally relates to a method for winding wire of electrical connector, and more particularly to a method for winding wire of electrical connector that reduces magnetic reluctance for better application to high frequency signals. 
     DESCRIPTION OF THE PRIOR ART 
     A conventional transmission line transformer is an impedance transformer constructed with the operation principles of transmission line and transformer. The impedance transformer is simply a combination of a distributed parameter circuit that is commonly referred to as a transmission line and a lumped parameter circuit that is commonly referred to as a coil, and is, in brief, a transformer constructed by winding a transmission line around a high-permeability and low-loss core. For example, to manufacture a commonly used network transformer, electrical wires of four different colors are first twisted with each other at a middle section thereof and the twisted wires are wound around a ring-shaped ferrite core by a predetermined number of turns. The winding of the wires is made within an angular range of 180-270 degrees in a circumferential direction of the ring-shaped ferrite core. This process of winding wire has been commonly used for years and is a simple process of manufacturing. Products manufactured in this way are currently used in transmitting and receiving signal for Ethernet 10/100 Base-T or 1000 Base-T. However, such a commonly use way of wire winding requires manually winding wires, which makes it hard to realize precise control of wire winding. Further, due to the manufacturing being simple, the characteristics and quality of the transformers so made through a mass production process may get inconsistent. Consequently, it becomes impossible to realize signal transmission for high speed transmission. 
     Due to the fast development and progress of science and technology the manufacturers of network RJ connectors are now devoted themselves to the development of new RJ connectors for transmission of 10G signal. However, the conventional way of manufacturing transforms for the transmission of network signal is to wind wires around a ring-shaped ferrite core, and it is mentioned previous that the transformers manufactured with the conventional method are incapable of application to high frequency. Due to such a reason, those manufacturers that are capable of manufacturing RJ connectors for 10G signal transmission apply the skin effect that occurs when a transmission line transmits high frequency signals by winding two cables of four-color twisted wires around a dual-bore ring-shaped ferrite core or a conventional ring-shaped ferrite core by a predetermined number of turns. 
     However, the method of winding two cables of four-color twisted wires around a dual-hole ring-shaped ferrite core or a conventional ring-shaped ferrite core still shows the following drawbacks, which are desired to be further improved: 
     Winding of wire is carried out manually, so that care must be exercised in controlling the art and quality, and thus it is difficult to realize high productivity in mass production. 
     SUMMARY OF THE INVENTION 
     The primary objective of the present invention is to wind wires around a ring-shaped body through a specific process so as to realize consistent high quality and improved yield rate of the products, and also reducing reluctance for better application to high frequency signals. 
     To achieve the above objective, the present invention provides a method for wire winding, which begins with a step of providing four wires of different colors and arranging and twisting the wires to have a middle section thereof twisted together to form a first wire group, which has two ends respectively forming first input terminal wires and first output terminal wires each comprising four wires. Further, additional four wires of different colors are provided, which are arranged and twisted to have a middle section thereof twisted together to form a second wire group, which has two ends respectively forming second input terminal wires and second output terminal wires each comprising four wires. Afterwards, a ring body is provided to allow the first wire group to be wound around an upper half portion (within an angular range of around 180 degrees) of the ring body and also to allow the second wire group to be wound around a lower half portion (within an angular range of around 180 degrees) of the ring body. After the operations, at the side of the ring body where the first and second input terminal wires are located, each of the first input terminal wires and the corresponding one of the second input terminal wires are twisted and the twisted wires are arranged to form third input terminal wires. At the opposite side of the ring body, each of the first output terminal wires and the corresponding one of the second output terminal wires are twisted and the twisted wires are arranged to form third output terminal wires. Afterwards, one input terminal wire of the third input terminal wires is twisted with one output terminal wire of the third output terminal wires and the remaining wires are displaced and re-arranged to form three fourth input terminal wires; and at the opposite side, one output terminal wire of the third output terminal wires is twisted with one input terminal wire of the third input terminal wires, while the remaining wires are displaced and re-arranged to form three fourth output terminal wires. This completes the wire winding method of electrical connector according to the present invention. 
     The foregoing objectives and summary provide only a brief introduction to the present invention. To fully appreciate these and other objects of the present invention as well as the invention itself, all of which will become apparent to those skilled in the art, the following detailed description of the invention and the claims should be read in conjunction with the accompanying drawings. Throughout the specification and drawings identical reference numerals refer to identical or similar parts. 
     Many other advantages and features of the present invention will become manifest to those versed in the art upon making reference to the detailed description and the accompanying sheets of drawings in which a preferred structural embodiment incorporating the principles of the present invention is shown by way of illustrative example. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         FIG. 1  is a flowchart showing a wire winding method according to a preferred embodiment of the present invention. 
         FIG. 2  is a first schematic view illustrating a wire winding operation according to the method of the present invention. 
         FIG. 3  is a second schematic view illustrating the wire winding operation according to the method of the present invention. 
         FIG. 4  is a third schematic view illustrating the wire winding operation according to the method of the present invention. 
         FIG. 5  is a fourth schematic view illustrating the wire winding operation according to the method of the present invention. 
         FIG. 6  is a fifth schematic view illustrating the wire winding operation according to the method of the present invention. 
         FIG. 7  is a sixth schematic view illustrating the wire winding operation according to the method of the present invention. 
         FIG. 8  schematically illustrates a wire winding method according to another embodiment of the present invention. 
     
    
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS 
     The following descriptions are exemplary embodiments only, and are not intended to limit the scope, applicability or configuration of the invention in any way. Rather, the following description provides a convenient illustration for implementing exemplary embodiments of the invention. Various changes to the described embodiments may be made in the function and arrangement of the elements described without departing from the scope of the invention as set forth in the appended claims. 
     Referring to  FIG. 1 , which shows a flowchart of a wire winding method according to a preferred embodiment of the present invention, the drawing clearly shows that the wire winding method according to the present invention comprises the following steps: 
     (a) providing and twisting four wires of different colors to form a first wire group that comprises first input terminal wires and first output terminal wires, and winding the first wire group around an upper half portion of a ring body; 
     (b) providing and twisting four wires of different colors to form a second wire group that comprises second input terminal wires and second output terminal wires, and winding the second wire group around a lower half portion of the ring body; 
     (c) mating and twisting each of the first input terminal wires and the corresponding one of the second input terminal wires, both being on one side of the ring body, and arranging the twisted wires to respectively form third input terminal wires; 
     (d) mating and twisting each of the first output terminal wire and the corresponding one of the second output terminal wires, both being on the opposite side of the ring body, and arranging the twisted wires to respectively form third output terminal wires; 
     (e) performing twisting of a specific input terminal wire of the third input terminal wires with a specific output terminal wire of the third output terminal wire and re-arranging and displacing to form fourth input terminal wires; and 
     (f) performing twisting of a specific output terminal wire of the third output terminal wires with a specific input terminal wire of the third input terminal wires and re-arranging and displacing to form fourth output terminal wires. 
     Further, the ring body around which the wires are wound comprises a ring-shaped ferrite core. 
     Referring to  FIGS. 2-7 , which are schematic views illustrating a wire winding operation according to the present invention, these drawings clearly show that the above described steps are more clearly illustrated. Firstly, four wires of different colors are twisted to form a first wire group  1 . The first wire group  1  has two ends respectively comprising four first input terminal wires  101 ,  102 ,  103 ,  104  and four first output terminal wires  111 ,  112 ,  113 ,  114 . Further, four additional wires of different colors are twisted to form a second wire group  2 . The second wire group  2  has two ends respectively comprising four second input terminal wires  201 ,  202 ,  203 ,  204  and four second output terminal wires  211 ,  212 ,  213 ,  214  (see  FIGS. 2 and 3 ). The first wire group  1  and the second wire group  2  are then respectively wound around upper and lower half portions of a ring body with the first input terminal wires  101 ,  102 ,  103 ,  104 , the first output terminal wires  111 ,  112 ,  113 ,  114 , the second input terminal wires  201 ,  202 ,  203 ,  204 , and the second output terminal wires  211 ,  212 ,  213 ,  214  extending outside the ring body (see  FIGS. 4 and 5 ). Afterwards, the first input terminal wire  101  and the second input terminal wire  201  are twisted to form a third input terminal wire  301 ; the first input terminal wire  102  and the second input terminal wire  202  are twisted to form a third input terminal wire  302 ; the first input terminal wire  103  and the second input terminal wire  203  are twisted to form a third input terminal wire  303 ; and the first input terminal wire  104  and the second input terminal wire  204  are twisted to form a third input terminal wire  304 ; and after the twisting operations, the twisted wires are properly arranged. Further, at the opposite side of the ring body, the first output terminal wire  111  and the second output terminal wire  211  are twisted to form a third output terminal wire  311 ; the first output terminal wire  112  and the second output terminal wire  212  are twisted to form a third output terminal wire  312 ; the first output terminal wire  113  and the second output terminal wire  213  are twisted to form a third output terminal wire  313 ; and the first output terminal wire  114  and the second output terminal wire  214  are twisted to form a third output terminal wire  314 ; and after the twisting operations, the twisted wires are properly arranged (see  FIG. 6 ). After the above operations, the third input terminal wire  302  and the third output terminal wire  311  are twisted to form a fourth input terminal wire  402 . The third input terminal wire  301  is re-named as a fourth input terminal wire  401 , after the twisting of the third input terminal wire  302  and the third output terminal wire  311 . The third output terminal wire  312  is displaced to the same side of the ring body as the fourth input terminal wire  401  and re-named as a fourth input terminal wire  403 . Further, the third input terminal wire  303  is displaced to the side of the ring body that is opposite to the fourth input terminal wire  401  and is re-named as a fourth output terminal wire  411 . The third output terminal wire  313  and the third input terminal wire  304  are twisted to form a fourth output terminal wire  412 . The third output terminal wire  314  is re-named as a fourth output terminal wire  413  (see  FIG. 7 ). 
     Referring to  FIG. 8 , a wire winding method according to another embodiment of the present invention is illustrated. The drawing clearly shows that a first wire group  1   a  is wound around a ring body  5   a  in such a way that the winding starts from a major surface (the surface facing outside the drawing plane or upper surface) of the ring body  5   a  at one side, going down to an opposite major surface (the surface facing inside the drawing plane or lower surface) of the ring body  5   a , and the winding terminates at the lower surface of the ring body  5   a  at the opposite side; and a second wire group  2   a  is wound around the ring body  5   a  in such a way that the winding starts from the lower surface of the ring body  5   a  at the one side, going up to the upper surface of the ring body  5   a , and the winding terminates at the upper surface of the ring body  5   a . (It is noted in the drawing that dashed lines indicate being located below the ring body and thus at the lower surface, while the solid lines indicate being located above the ring body and thus at the upper surface). 
     It will be understood that each of the elements described above, or two or more together may also find a useful application in other types of methods differing from the type described above. 
     While certain novel features of this invention have been shown and described and are pointed out in the annexed claim, it is not intended to be limited to the details above, since it will be understood that various omissions, modifications, substitutions and changes in the forms and details of the device illustrated and in its operation can be made by those skilled in the art without departing in any way from the spirit of the present invention.