Telecommunications connector with spring assembly and method for assembling

Information

  • Patent Grant
  • 6554653
  • Patent Number
    6,554,653
  • Date Filed
    Friday, March 16, 2001
    25 years ago
  • Date Issued
    Tuesday, April 29, 2003
    22 years ago
Abstract
An electrical connector including a spring mounting body having a clip receiving structure. A plurality of contact springs are mounted on the spring mounting body. A clip is inserted within the clip receiving structure to stabilize the contact springs. Portions of the contact springs are captured between the clip and the spring mounting body. A method for assembling the electrical connector is also disclosed.
Description




FIELD OF THE INVENTION




The present invention relates generally to telecommunications connectors and to methods for assembling telecommunications connectors.




BACKGROUND OF THE INVENTION




Modular connectors such as modular plugs and modular jacks are commonly used in the telecommunications industry.

FIG. 1

illustrates an exemplary modular connector


20


(e.g., an RJ45 connector). The connector


20


includes eight spring contacts numbered from one to eight. The eight contacts form four separate circuits or pairs for conveying twisted pair (e.g., tip and ring) signals.

FIG. 1

shows a conventional pairing configuration in which springs


4


and


5


form a first circuit, springs


3


and


6


form a second circuit, springs


1


and


2


form a third circuit, and springs


7


and


8


form a fourth circuit.




Crosstalk can be a significant source of interference in telecommunications systems. Crosstalk is typically caused by the unintentional transfer of energy from one signal pair to another. Commonly, the transfer of energy is caused by inductive or capacitive coupling between the conductors of different circuits. Crosstalk is particularly problematic in modular connectors because of the close spacing of the contact springs. The most severe crosstalk frequently occurs between the two inside circuits of a modular connector (i.e., the circuits formed by contact springs


4


,


5


and


3


,


6


).




To reduce crosstalk, a variety of different spring configurations have been developed. Often, the spring shapes are quite complicated and the springs can be difficult to assemble and maintain in the desired orientations suitable for reducing crosstalk. What is needed is an improved method for assembling contact springs in a telecommunications connector.




SUMMARY OF THE INVENTION




One aspect of the present invention relates to an electrical connector including a spring mounting body having a clip receiving structure. A plurality of contact springs are mounted on the spring mounting body. A clip is inserted within the clip receiving structure to stabilize the contact springs. Portions of the contact springs are captured between the clip and the spring mounting body.




A method for mounting telecommunication connector springs including providing a dielectric spring mounting body, and positioning a plurality of contact springs at desired locations on the spring mounting body. The method also includes stabilizing the contact springs by capturing portions of the contact springs between the spring mounting body and a dielectric clip. The method further includes connecting the clip to the spring mounting body with the captured portions of the contact springs remaining captured after the clip has been connected to the spring mounting body.











A variety of advantages of the invention will be set forth in part in the description that follows, and in part will be apparent from the description, or may be learned by practicing the invention. It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention as claimed.




BRIEF DESCRIPTION OF THE DRAWINGS




The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate several aspects of the invention and together with the description, serve to explain the principles of the invention. A brief description of the drawings is as follows:





FIG. 1

schematically shows a prior art modular jack;





FIG. 2A

is an exploded, front perspective view of a modular jack constructed in accordance with the principles of the present invention;





FIG. 2B

is an exploded, rear perspective view of the modular jack of

FIG. 2A

;





FIG. 3

is a front view of the jack of

FIG. 2

with a modular plug inserted therein;





FIG. 4

is a cross-sectional view taken along section line


4





4


of

FIG. 3

;





FIG. 5A

is a perspective view of the springs and circuit board of the modular jack of

FIG. 2

, the springs are illustrated in a deflected orientation;





FIG. 5B

is a top, plan view of the springs and circuit board of

FIG. 5A

;





FIG. 5C

is an elevational view of the circuit board and deflected springs of

FIG. 5A

;





FIG. 6

is a cross-sectional view taken along section line


6





6


of

FIG. 5B

, the spring is shown in a deflected orientation and in a non-deflected orientation;





FIG. 7

is a cross-sectional view taken along section line


7





7


of

FIG. 5B

, the spring is shown in a deflected orientation and in a non-deflected orientation;





FIG. 8

is a cross-sectional view taken along section line


8





8


of

FIG. 5B

, the spring is shown in a deflected orientation and in a non-deflected orientation;





FIG. 9A

is a front, top perspective view of an insert body constructed in accordance with the principles of the present invention;





FIG. 9B

is a bottom, front perspective view of the insert body of

FIG. 9A

;





FIG. 10

is a cross-sectional view of the jack of

FIGS. 2A and 2B

with the jack being cut through one of the front springs;





FIG. 11

is a cross-sectional view of the jack of

FIGS. 2A and 2B

with the jack being cut through one of the middle springs;





FIG. 12

is a cross-sectional view of the jack of

FIGS. 2A and 2B

with the jack being cut through one of the rear springs;





FIG. 13

is a bottom perspective view of the insert body of

FIGS. 9A and 9B

with contact springs mounted therein;





FIG. 14

is a side elevational view of the insert body of

FIGS. 9A and 9B

with springs secured thereto by a retainer clip;





FIG. 15

is a perspective view of the insert body of

FIGS. 9A and 9B

with springs secured thereto by a retainer clip;





FIG. 16A

is a rear, top perspective view of the retainer clip of

FIGS. 14 and 15

;





FIG. 16B

is a front, top perspective view of the retainer clip of

FIG. 16A

;





FIG. 16C

is a rear, bottom perspective view of the retainer clip of

FIG. 16A

;





FIG. 16D

is a bottom plan view of the retainer clip of

FIG. 16A

;





FIG. 16E

is a top plan view of the retainer clip of

FIG. 16A

;





FIG. 17

is an exploded view showing the insert body and springs of

FIGS. 14 and 15

positioned in alignment with a printed circuit board; and





FIG. 18

is a front, perspective view showing the printed circuit board and insert body of

FIG. 17

connected together.











DETAILED DESCRIPTION




Reference will now be made in detail to exemplary aspects of the present invention that are illustrated in the accompanying drawings. Wherever possible, the same reference numbers will be used throughout the drawings to refer to the same or like parts.





FIGS. 2A and 2B

illustrate a modular jack


30


constructed in accordance with the principles of the present invention. The modular jack


30


includes a housing


32


and an insert assembly


34


adapted to snap fit within the housing


32


. The insert assembly


34


includes an insert body


36


, a circuit board


42


, a spring retaining clip


230


and a plurality of contact springs


44


(e.g., eight contact springs). Insulation displacement connectors


38


are provided on a top side of the insert body


36


. The springs


44


are secured to the insert body


36


by the retaining clip


230


. When assembled, the circuit board


42


mounts to a bottom side of the insert body


36


, and the contact springs


44


extend above the top side of the insert body


36


. Tracings (not shown) on the circuit board


42


provide electrical connections between the contact springs


44


and respective ones of the insulation displacement connectors


38


. Details relating to a circuit board tracing configuration suitable for use with the present invention are disclosed in U.S. Pat. No. 6,089,923 issued Jul. 18, 2000, which is hereby incorporated by reference.




To mount the insert assembly


34


in the housing


32


, the insert assembly


34


is placed in a channel


41


of the housing


32


. The insert assembly


34


is then slid toward the front of the housing


32


until resilient locking tabs


46


of the insert body


36


snap fit within corresponding openings


48


defined by the housing


32


. When the insert assembly


34


is snap fit within the housing


32


, the springs


44


of the insert assembly


34


are separated by a divider


39


positioned within the housing


32


.





FIG. 3

shows a modular plug


50


inserted within a port


52


defined by a front side


54


of the housing


32


. The plug


50


includes eight contacts


56


that provide electrical connections with the contact springs


44


of the modular jack


30


when the plug


50


is inserted within the port


52


. For example,

FIG. 4

shows one of the contacts


56


in electrical contact with one of the contact springs


44


. As shown in

FIG. 4

, the contact springs


44


have been pushed into a deflected orientation by the contacts


56


. For the purpose of this application, the phrase “deflected orientation” is intended to mean the orientation of the contact springs


44


when the plug


50


is inserted within the port


52


. For clarity, the insert body


36


is not shown in FIG.


4


.




Electrical contact between the contacts


56


and the contact springs


44


is preferably made along a single line of contact


58


. The line of contact


58


is best shown schematically at FIG.


5


A. For clarity purposes, the plug


50


is not shown in

FIG. 5A

such that the springs


44


are more clearly visible.





FIGS. 5A-5C

illustrate the circuit board


42


and the contact springs


44


in isolation from the remainder of the modular jack


30


. In all of

FIGS. 5A-5C

, the contact springs


44


have been depicted in the deflected orientation of FIG.


4


.




Referring now to

FIG. 5B

, the contact springs


44


are located at eight separate spring positions numbered


1


-


8


. Similar to the prior art pin assignment of

FIG. 1

, the contact springs at positions


4


and


5


preferably form a first pair, the contact springs at positions


3


and


6


preferably perform a second pair, the contact springs at positions


1


and


2


preferably form a third pair, and the contact springs at positions


7


and


8


preferably form a fourth pair. Other pairings can also be used.




The contact springs


44


preferably include springs having three different geometric configurations. For example, the contact springs


44


are shown including four front springs


60


, two middle springs


62


and two rear springs


64


. Preferably, the front springs


60


are located at spring positions


2


,


4


,


6


and


8


; the middle springs


62


are located at spring positions


1


and


7


; and the rear springs


64


are located at spring positions


3


and


5


. As will be described later in the specification, the front and middle springs


60


and


62


preferably comprise rearwardly extending springs, and the rear springs


64


preferably comprise forwardly extending springs.




Referring again to

FIG. 5B

, the front, middle and rear springs


60


,


62


and


64


respectively include terminal ends


66


,


68


and


70


(i.e., posts) that terminate within the circuit board


42


. The terminal ends


66


of the front springs


60


are aligned along a front reference line


72


, the terminal ends


68


of the middle springs


62


are aligned along a middle reference line


74


, and the terminal ends


70


of the rear springs


64


are aligned along a rear reference line


76


. The middle reference line


74


is positioned between the front and rear reference lines


72


and


76


. Preferably, the reference lines


72


,


74


and


76


are substantially parallel. The spacing between the reference lines


72


,


74


and


76


provide staggering between the terminal ends


66


,


68


and


70


. This staggering is advantageous because additional space is provided for terminating the springs


44


at the circuit board


42


(e.g., clearance for solder pads is provided). Clearance is also provided for allowing transmission lines to be passed between the springs


44


.





FIG. 6

shows one of the front springs


60


in both a deflected orientation


78


and in a non-deflected orientation


80


. The terminal end


66


of the front spring


60


is shown extending through the circuit board


42


. The circuit board


42


includes a front end


82


adapted to be positioned at the front side


54


of the housing


32


and a rear end


84


adapted to be positioned at the rear side


31


of the housing


32


.




Referring still to

FIG. 6

, the terminal end


66


of the front spring


60


extends vertically upward from the circuit board


42


. A forward extension


86


extends in a forward direction from the terminal end


66


. A first bend


88


(e.g., a bend of about 90 degrees) interconnects the terminal end


66


and the forward extension


86


. The forward extension


86


preferably extends slightly upward as it extends in the forward direction. A second bend


90


reverses the direction in which the forward extension


86


extends. For example, the second bend reverses the direction of the spring


60


from a forward direction at the forward extension


86


, to a rearward direction at a proximal portion


92


of the front spring


60


.




The proximal portion


92


extends from the second bend


90


to a contact region


94


that corresponds to the line of contact


58


at which the spring


60


will contact its respective contact


56


of the plug


50


. The spring


50


further includes a distal portion


96


that extends from the contact region


94


toward the rear end


84


of the circuit board


42


. Preferably, the proximal and distal portions


92


and


96


are aligned along a single straight line


98


.




The front spring


60


can be referred to as a rearwardly extending spring because the distal portion


96


extends from the contact region


94


toward the rear end


84


of the circuit board


42


. The proximal and distal portions


92


and


96


cooperate to form an upper resilient cantilever


89


having a base at the second bend


90


. When moving between the deflected and non-deflected orientations


78


and


80


, the cantilever


89


flexes primarily it's base (e.g., at the second bend


90


).





FIG. 7

illustrates one of the middle springs


62


in both a deflected orientation


100


and in a non-deflected orientation


102


. The terminal end


68


of the middle spring


62


extends vertically upward from the circuit board


42


. A forward extension


104


extends in a forward direction from the terminal end


68


. A first bend


106


(e.g., approximately a 90 degree bend) provides a transition between the terminal end


68


and the forward extension


104


. A second bend


108


reverses the direction of extension of the forward extension


104


. From the second bend


108


, a proximal portion


110


of the middle spring


62


extends in a rearward direction to a contact region


112


that corresponds to the line of contact


58


at which the spring


62


will contact its respective contact


56


of the plug


50


.




A distal portion


114


of the contact spring


62


extends from the contact region


112


in a rearward direction toward the rear end


84


of the circuit board


42


. Preferably, the proximal portion


110


and the distal portion


114


are aligned along a single straight line


116


and form an upper cantilever


115


having a base end at the second bend


108


. When moving between the deflected and non-deflected orientations


100


and


102


, the cantilever


115


flexes primarily at the second bend


108


. The spring


62


can be referred to as a rearwardly extending spring because the distal portion


114


extends in a rearward direction from the contact region


112


.





FIG. 8

illustrates one of the rear springs


64


in both a deflected orientation


118


and a non-deflected orientation


120


. The terminal end


70


of the rear spring


64


extends perpendicularly from the circuit board


42


. A rearward extension


122


extends in a rearward direction from the terminal end


70


. A first bend


124


(e.g., about a 90° bend) provides a transition between the terminal end


70


and the rearward extension


122


. A second bend


126


reverses the direction of extension of the rearward extension


122


. A proximal portion


130


extends from the second bend


126


in a forward direction to a contact region


132


of the spring


64


. The contact region


132


corresponds to the line of contact


58


at which the spring


64


will electrically contact one of the contacts


56


of the plug


50


. A distal portion


134


of the rear spring


64


preferably extends in a forward direction from the contact region


132


toward the front end


82


of the circuit board


42


.




The distal and proximal portions


134


and


130


are not aligned along a common straight line. Instead, the proximal and distal portions


130


and


134


are preferably aligned at an obtuse angle relative to one another. The contact region


132


is located at an apex between the proximal and distal portions


130


and


134


, and the proximal and distal portions


130


and


134


extend away from the contact region


132


in a direction generally toward the circuit board


42


. The proximal and distal portions


130


and


134


form a cantilever


135


having a base end at the second bend


126


. When moving between the deflected and non-deflected orientations


118


and


120


, the cantilever


135


flexes primarily at the second bend


126


. The spring


64


can be referred to as a forwardly facing spring because the distal portion


134


extends in a forward direction from the contact region


132


.




Referring to

FIG. 5C

, the contact springs


44


are shown in a deflected orientation. As illustrated, the distal portions


96


of the front springs


60


(i.e., the rearwardly facing contact springs) define an angle θ


1


relative to the proximal portions


130


of the rear springs


64


(i.e., the forwardly facing contact springs) that is preferably greater than 10°. In other embodiments, the angle θ


1


is greater than 15°, 20°, 25°, 30°, or 35°. In one particular embodiment of the present invention, the angle θis about 38.5°.




Referring still to

FIG. 5C

, proximal portions


92


of the front springs


60


(i.e., the rearwardly facing contact springs) define an angle θ


2


relative to the distal portions


134


of the rear springs


64


(i.e., the forwardly facing contact springs) that is preferably greater than 10°. In certain embodiments of the present invention, the angle θ


2


is greater than 15°, 20° or 25°. In one particular embodiment of the present invention, the angle θ


2


is about 26.6°.




To further reduce crosstalk, it is also noted that the distal portions


114


of the middle springs


62


are arranged in a non-parallel relationship with respect to the distal portions


96


of the front springs


60


. Additionally, the proximal portions


110


of the middle springs


62


are arranged in a non-parallel relationship with respect to the proximal portions


92


of the front springs


60


.




The above-described configurations assist in reducing crosstalk between the springs located at positions


3


-


6


because the distal portions


96


of the front springs


60


relatively quickly diverge from a parallel relationship with respect to the proximal portions


130


of the rear springs


64


, and the proximal portions


92


of the front springs


60


relatively quickly diverge from a parallel relationship with respect to the distal portions


134


of the rear springs


64


. The divergence preferably initiates as the springs


60


,


64


extend away from the line of contact


58


. Therefore, significant portions of the springs


60


and


64


are spaced relatively far apart thereby reducing the intensity of capacitive coupling.




As shown in

FIG. 5B

, the front springs


60


are shown at positions


4


and


6


and the rear springs


64


are shown at positions


3


and


5


. It will be appreciated that this positioning could be reversed such that the front springs


60


are located at positions


3


and


5


, and the rear springs


64


are located at positions


4


and


6


. Also, in other embodiments, forwardly extending springs can be used at positions


1


,


2


,


7


and


8


; and forwardly and rearwardly extending contacts can be alternated at positions


3


-


6


. In still another embodiment, forwardly extending contacts and rearwardly extending contacts can be alternated throughout positions


1


-


8


.




The insert body


36


of the jack


30


is preferably made of a dielectric material such as polycarbonate. The insert body


36


includes a top side


200


(shown in

FIG. 9A

) and a bottom side


202


(shown in FIG.


9


B). The insert body also includes a front end


204


(i.e., a spring supporting end) positioned opposite from a rear end


206


. The front end


204


is preferably configured to assist in holding the springs


44


in the configuration of

FIGS. 5A-5C

. For example, as best shown in

FIG. 9A

, the front end


104


of the insert body


36


includes four front spring bend guides


208


and two middle spring bend guides


210


. As shown in

FIG. 10

, the front spring bend guides


208


are preferably radiused (i.e. curved) to complement and support the second bends


90


of the front springs


60


. As shown in

FIG. 11

, the middle spring bend guides


210


are preferably radiused to complement and support the second bends


108


of the middle springs


62


. The middle spring bend guides


210


are preferably rearwardly and downwardly offset relative to the front spring bend guides


208


.




Referring to

FIG. 9B

, the bottom of the insert body


36


also includes structure for maintaining the springs


44


in the configurations of

FIGS. 5A-5C

. For example, the bottom side


202


includes four front spring channels


212


for receiving the forward extensions


86


of the front springs


60


.

FIG. 10

shows the forward extension


86


of one of the front springs


60


positioned in one of the front spring slot


212


. As also shown in

FIG. 10

, rear ends


213


of the front spring slots


212


are radiused to match the curvatures of the first bends


88


of the front springs


60


.




The bottom side


202


also defines two middle spring channels


214


for receiving the forward extensions


104


of the middle springs


62


.

FIG. 11

shows the forward extension


104


of one of the middle springs


62


positioned in one of the middle spring channels


214


. As also shown in

FIG. 11

, rear ends


215


of the middle spring channels


214


are radiused to match the curvatures of the first bends


106


of the middle springs


62


. The middle spring channels


214


are preferably adapted to position the forward extensions


104


of the middle springs


62


at a lower elevation than the forward extensions


86


of the front springs


60


.




The insert body


36


further defines two rear spring slots


216


for receiving the contact regions


132


of the rear springs


64


. As shown in

FIG. 12

, the rear spring slots


216


extend completely through the insert body


36


such that the contact regions


132


of the rear springs


64


can extend from the bottom side


202


of the insert body to the top side


200


of the insert body


36


.




The springs


44


are secured (i.e., fastened, retained, otherwise held in place) to the insert body


36


by the retaining clip


230


. The clip


230


also stabilizes the springs


44


(i.e., the clip


230


resists movement of at least portions of the springs


44


). The term “clip” will be understood to mean a member that is manufactured as a separate piece from the insert body


36


and, that is engageable with the insert body


36


. The clip is preferably made of a dielectric material such as polycarbonate.




To assemble the springs on the insert body


36


, the springs


44


are mounted within their respective spring retaining structures defined on the insert body


36


. For example, the second bends


90


of the front springs


60


are inserted over the bend guides


208


(see FIG.


10


). As so inserted, the forward extensions


86


of the front springs


60


fit within the front spring channels


212


beneath the insert body


36


and the cantilever portions


89


extend above the top side


200


of the insert body


36


. Similarly, the second bends


108


of the middle springs


62


are inserted over the middle spring bend guides


210


(see FIG.


11


). As so inserted, the forward extensions


104


of the middle springs


62


fit within the middle spring channels


214


and the cantilever portions


115


project above the top side


200


of the insert body


36


. The rear springs


64


are positioned such that the contact portions


132


extend through the slots


216


defined by the insert body


36


(see FIG.


12


).





FIG. 13

shows the springs


44


positioned on the insert body


36


as described above. As shown in

FIG. 13

, the termination posts


66


,


68


and


70


of the springs


44


project outwardly from the bottom side


202


of the insert body


36


. During the assembly process, the clip


230


is used to retain the springs


44


in the position of FIG.


13


. To secure the springs


44


with the clip


230


, the clip is inserted in a rearward direction into a clip receiving structure


231


defined by the insert body


236


. The clip receiving structure


231


includes shoulders


232


that interlock with tabs


234


of the clip


230


to prevent the clip


230


from being forwardly dislodged from the clip retaining structure


231


. The tabs


234


are positioned on the end of flexible arms


235


that flex inwardly as the retaining clip


230


is inserted into the clip retaining structure


231


. Specifically, during insertion of the clip


230


, the tabs


234


engage ramped surfaces


236


of the shoulders


232


causing the arms


235


to flex inwardly. Once the tabs


234


pass the shoulders


232


, the arms


235


snap outwardly to provide a snap fit connection.




With the retaining clip


230


inserted within the clip receiving structure


231


, portions of the springs


44


are captured between the clip


230


and the bottom side


202


of the insert body. The clip


230


is prevented from being downwardly displaced from the clip receiving structure


231


by side wedges


237


that fit within notches


238


of the insert body


36


when the retaining clip


230


is fully inserted within the clip retaining structure


231


.

FIG. 15

shows one of the side wedges


237


inserted within one of the notches


238


.





FIGS. 14 and 15

show the clip


230


fully inserted within the insert body


36


. As shown in

FIGS. 14 and 15

, the retaining clip


230


includes a handle


240


. The handle


240


facilitates inserting the clip


230


within the clip receiving structure


231


. After insertion, the handle can be removed from the remainder of the retaining clip


230


by conventional techniques such as cutting or otherwise breaking the handle


240


from the retaining clip


230


.




Referring to

FIGS. 16D and 16E

, the retaining clip


230


includes a plurality of post retainers for precisely maintaining the position of the termination posts


66


,


68


and


70


of the springs


44


. For example, the post retainers include four front post retainers


242


adapted to engage and position the terminal posts


66


of the front springs


60


(see FIG.


10


). Still referring to

FIGS. 16D and 16E

, the clip


230


also includes two middle post retainers


244


and two rear post retainers


246


. The middle post retainers


244


are adapted to engage and position the terminal posts


68


of the middle springs


62


(see FIG.


11


). The rear post retainers


246


are adapted to engage and position the terminal posts


70


of the rear springs


64


(see FIG.


12


). All of the post retainers


242


,


244


and


246


include structure for receiving or cradling the terminal end posts


66


,


68


and


70


. For example, as shown, the post retainers


42


,


44


and


46


each have a concave, notched configuration. However, any type of notch or other structure could also be used.




The retaining clip


230


also includes structures for trapping or pressing portions of the springs


44


against the bottom side


202


of the insert body


36


. For example, as shown in

FIGS. 16A-16C

, the clip


230


includes four front spring supports


250


for capturing the front springs


60


, two middle spring supports


260


for capturing the middle springs


62


, and two rear spring supports


270


for capturing the rear springs


64


.




The front spring supports


250


are positioned in alignment with the front post retainers


242


. As shown in

FIG. 10

, the front spring supports


250


include inclined planar portions


251


for pressing the forward extensions


86


of the forward springs


60


upwardly into their corresponding front spring channels


212


defined beneath the insert body


36


. The front spring supports


250


also include front curvatures


253


for supporting the second bends


90


of the front springs


60


, and rear curvatures


255


corresponding to the first bends


88


of the front springs


60


.




The middle spring supports


260


are positioned in alignment with the middle post retainers


244


. As shown in

FIG. 11

, the middle spring supports


260


include planar support surfaces


262


that press the forward extensions


104


of the middle springs


62


into their corresponding middle spring channels


214


defined beneath the insert body


36


. Rear ends of the middle spring support structures


260


are tapered to accommodate the second bends


106


of the middle springs


62


. The planar support surfaces


261


are preferably positioned lower than the planar support surfaces


251


of the front spring supports


250


.




The rear spring supports


270


are positioned in alignment with the rear post retainers


246


. As shown in

FIG. 12

, the rear spring supports


270


include rounded noses


272


for supporting the second bends


126


of the rear springs


64


. Planar support surfaces


271


of the rear spring supports


270


are preferably positioned higher than the planar support surfaces


251


of the front spring supports


250


. The spring supports


270


press portions of the rear springs


64


against the underside of the insert body


36


, and prevent the distal tips of the rear springs


64


from contacting the circuit board


44


.




The retaining clip


230


further includes a front flange or lip


280


that covers and protects the second bends


90


and


108


of the front and middle springs


60


and


62


when the clip


230


is fully inserted within the clip receiving structure


231


of the insert body


36


. The lip


280


projects upwardly from the spring supports


250


,


260


and


270


. Notches


282


are defined at a top edge of the lip


280


for providing clearance for the front springs


60


.





FIG. 17

shows the clip


230


fully inserted within the clip retaining structure


231


of the insert body


36


. As so inserted, the retaining clip


230


retains all of the terminal posts


66


,


68


and


70


in predetermined locations that correspond to the locations of through-holes


290


defined by the printed circuit board


44


. Similarly, insulation displacement connector contacts


293


are also positioned in alignment with through-holes


292


defined by the printed circuit board


44


. Therefore, the printed circuit board can be readily connected to the insert body


36


by pressing the two pieces together such that the terminal posts


66


,


68


and


70


fit within their corresponding through-holes


290


and the insulation displacement connectors fit within their corresponding through-holes


292


. Preferably, a supplemental fixture is also used to maintain alignment of the posts


66


,


68


and


70


. In certain embodiments, the posts


66


and


68


(shown in

FIGS. 10 and 11

) can be fabricated so as to be angled slightly forward prior to insertion in the circuit board


42


. Thus, when inserted in the through-holes


290


, the posts


66


and


68


exert a spring bias to springs


60


and


62


.

FIG. 18

shows the insert body


36


and the printed circuit board


44


after the two pieces have been connected together.




With regard to the foregoing description, it is to be understood that changes may be made in detail without departing from the scope of the present invention. It is intended that the specification and depicted aspects of the invention may be considered exemplary, only, with a true scope and spirit of the invention being indicated by the broad meaning of the following claims.



Claims
  • 1. An electrical connector comprising:a spring mounting body having a top side, a bottom side, and a first end positioned opposite from a second end, the spring mounting body including a clip receiving structure positioned at the bottom side of the spring mounting body; a plurality of contact springs mounted on the spring mounting body, the contact springs including upper portions defining contact regions positioned above the top side of the spring mounting body, lower portions positioned under the spring mounting body, and bends interconnecting the upper and lower portions, the bends being positioned to curve around the first end of the spring mounting body; a clip inserted within the clip receiving structure for stabilizing the contact springs, the clip including a lip that abuts against the first end of the spring mounting body and covers an outer radius of the bends of the contact springs; and at least portions of the lower portions of the contact springs being captured between the clip and the bottom side of the spring mounting body.
  • 2. An electrical connector comprising:a spring mounting body having a top side, a bottom side, and a first end positioned opposite from a second end, the spring mounting body including a clip receiving structure positioned at the bottom side of the spring mounting body; a plurality of contact springs mounted on the spring mounting body, the contact springs including upper portions defining contact regions positioned above the top side of the spring mounting body, and lower portions positioned under the spring mounting body; a clip inserted within the clip receiving structure such that at least portions of the lower portions are captured between the clip and the bottom side of the spring mounting body for stabilizing the contact springs, the clip further including post retaining structures that engage and position the posts; and a circuit board positioned under the bottom side of the spring mounting body, wherein the springs include posts that project downwardly from the spring mounting body to provide electrical connections with the circuit board.
  • 3. The electrical connector of claim 2, wherein the post retaining structures are notched to receive the posts.
  • 4. An electrical connector comprising:a spring mounting body including a front end and a rear end, the spring mounting body also including a top side and a bottom side, the spring mounting body defining at least one through-slot that extends through the mounting body from the bottom side to the top side, the spring mounting body further including a clip receiving structure located at the bottom side of the spring mounting body; a plurality of contact springs mounted on the spring mounting body; the plurality of contact springs including a forwardly extending contact spring having a lower portion located below the spring mounting body and an upper portion that extends through the through-slot to provide a contact region located above the top side of the spring mounting body; the plurality of contact springs including a rearwardly extending contact spring positioned next to the forwardly extending contact spring, the rearwardly extending contact spring including a lower portion connected to an upper portion by a bend, the bend being positioned to curve around the front end of the spring mounting body such that the upper portion of the rearwardly extending spring is located above the top side of the spring mounting body and the lower portion of the rearwardly extending spring is located below the spring mounting body; and a clip inserted within the clip receiving structure for stabilizing the contact springs, the lower portions of the contact springs being captured between the clip and the bottom side of the spring mounting body.
  • 5. The electrical connector of claim 4, wherein the plurality of contact springs include six rearwardly extending springs and two forwardly extending springs, and wherein lower portions of all of the springs are captured between the clip and the bottom side of the spring mounting body.
  • 6. The electrical connector of claim 4, further comprising a circuit board positioned under the bottom side of the spring mounting body, wherein the springs include posts that project downwardly from the spring mounting body to provide electrical connections with the circuit board.
  • 7. The electrical connector of claim 6, wherein the clip includes post retaining structures that engage and position the posts.
  • 8. The electrical connector of claim 7, wherein the post retaining structures are notched to receive the posts.
  • 9. The electrical connector of claim 4, wherein the clip is snap-fit within the clip receiving structure.
  • 10. The electrical connector of claim 4, wherein the clip includes spring support structures corresponding to each of the springs.
  • 11. The electrical connector of claim 10, wherein the spring support structures are contoured to complement contours of the springs.
  • 12. The electrical connector of claim 10, wherein the spring support structures include support surfaces that press the springs against the bottom side of the spring mounting body.
  • 13. The electrical connector of claim 12, wherein selected ones of the support surfaces have different elevations.
  • 14. The electrical connector of claim 10, wherein the forwardly extending spring includes a bend, and wherein a corresponding one of the spring support structures has a rounded portion that corresponds to the bend of the forwardly extending spring.
  • 15. The electrical connector of claim 4, wherein the clip includes a front lip that abuts against the front end of the spring mounting body and covers the bend of the rearwardly extending spring.
  • 16. A method for mounting telecommunication contact springs, the method comprising:providing a dielectric spring mounting body; positioning the contact springs at desired locations on the spring mounting body, the contact springs including termination posts; stabilizing the contact springs by capturing first portions of the contact springs between the spring mounting body and a dielectric clip; stabilizing the termination posts by engaging the termination posts with post retainers of the clip; and connecting the clip to the spring mounting body with the captured first portions of the contact springs remaining captured and the termination posts remaining stabilized after the clip has been connected to the spring mounting body.
  • 17. The method of claim 16, wherein the spring mounting body includes a top side and a bottom side, and wherein the clip is connected to the spring mounting body by inserting the clip into a clip receiving structure located at the bottom side of the spring mounting body.
  • 18. The method of claim 16, further comprising connecting the springs to a printed circuit board having though-holes for receiving the posts, the through-holes being aligned with the predetermined positions of the posts.
  • 19. A method for connecting contact springs to a circuit board, the method comprising:providing a dielectric spring mounting body; positioning the contact springs at desired locations on the spring mounting body, the contact springs including posts that project outwardly from the spring mounting body; stabilizing the posts at predetermined locations corresponding to through-holes defined by the circuit board by engaging the posts with post retaining portions of a clip that is connected to the spring mounting body after the springs have been positioned at the desired locations; and after the clip has been connected to the spring mounting body, inserting the posts into the through-holes defined by the circuit board.
  • 20. A method for mounting telecommunication contact springs, the method comprising:providing a spring mounting body having a top side, a bottom side, and a front end opposite a rear end; positioning the contact springs in a forwardly extending orientation such that a bend of the contact springs curves around the front end of the spring mounting body; inserting a clip from the front end of the spring mounting body toward the rear end of the spring mounting body; and stabilizing the contact springs by capturing portions of the contact springs between the spring mounting body and the clip.
  • 21. The method of claim 20, wherein the step of inserting a clip includes inserting the clip along a direction from the bends of the contact springs towards posts of the contact springs.
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