|Publication number||USRE41250 E1|
|Application number||US 11/119,492|
|Publication date||Apr 20, 2010|
|Filing date||Apr 28, 2005|
|Priority date||Mar 16, 2001|
|Also published as||US6554653, US20020132532|
|Publication number||11119492, 119492, US RE41250 E1, US RE41250E1, US-E1-RE41250, USRE41250 E1, USRE41250E1|
|Inventors||Roy L. Henneberger|
|Original Assignee||Adc Telecommunications, Inc.|
|Export Citation||BiBTeX, EndNote, RefMan|
|Patent Citations (64), Non-Patent Citations (6), Referenced by (6), Classifications (10), Legal Events (3)|
|External Links: USPTO, USPTO Assignment, Espacenet|
The present invention relates generally to telecommunications connectors and to methods for assembling telecommunications connectors.
Modular connectors such as modular plugs and modular jacks are commonly used in the telecommunications industry.
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.
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.
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:
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.
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.
Electrical contact between the contacts 56 and the contact springs 44 is preferably made along a simple line of contact 58. The line of contact 58 is best shown schematically at FIG. 5A. For clarity purposes, the plug 50 is not shown in
Referring now to
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
Referring still to
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).
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 orientation 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.
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 still to
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
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
The bottom side 202 also defines two middle spring channels 214 for receiving the forward extension 104 of the middle springs 62.
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
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 number 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 structure 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 extension 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).
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 the notches 238 of the insert body 36 when the retaining clip 230 is fully inserted within the clip retaining structure 231.
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
The front spring supports 250 are positioned in alignment with the front post retainers 242. As shown in
The middle springs supports 260 are positioned in alignment with the middle post retainers 244. As shown in
The rear spring supports 270 are positioned in alignment with the rear post retainers 246. As shown in
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.
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 board meaning of the following claims.
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|1||"Ex.4: Commscope's Preliminary Responsive Claim Chart to U.S. Pat. No. 6,544,653," ADC Telecommunications, Inc. v. CommScope Solutions Properties, LLC and CommScope Solutions, Inc., District of Minnesota, Civil Action No. 05-02584 ADM-JSM, pp. 1-10 (Jul. 18, 2006).|
|2||Exhibit A: "Complaint," ADC Telecommunications, Inc. v. CommScope Solutions Properties, LLC and CommScope Solutions, Inc., District of Minnesota, Civil Action No. 0:05-cv-02584 ADM-JSM, pp. 1-10 (Nov. 7, 2005).|
|3||Exhibit B: "Answer and Counterclaims," ADC Telecommunications, Inc. v. CommScope Solutions Properties, LLC and CommScope Solutions, Inc., District of Minnesota, Civil Action No. 0:05-cv-02584 ADM-JSM, pp. 1-16 (Dec. 29, 2005).|
|4||Exhibit C: "ADC's Reply and Counterclaims to Defendants 'Counterclaims, " ADC Telecommunications, Inc .v. CommScope Solutions Properties, LLC and CommScope Solutions, Inc. , District of Minnesota, Civil Action No. 0:05-cv-02584 ADM-JSM, pp. 1-10 (Feb. 17, 2006).|
|5||Exhibit D: "First Amended Complaint," ADC Telecommunications, Inc. and ADC GmbHv. CommScope Solutions Properties, LLC and CommScope Solutions, Inc., District of Minnesota, Civil Action No. 0:05-cv-02584 ADM-JSM, pp. 1-12 (Apr. 19, 2006).|
|6||Exhibit E: "Answer and Counterclaims to First Amemded Complaint," ADC Telecommunications, Inc. and ADC GmbH v. CommScope Solutions Properties, LLC and CommScope Solutions, Inc., District of Minnesota, Civil Action No. 0:05-cv-02584 ADM-JSM, pp. 1-17 (Apr. 28, 2006).|
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|U.S. Classification||439/676, 439/76.1, 439/941|
|International Classification||H01R4/24, H01R24/00|
|Cooperative Classification||Y10S439/941, H01R13/4364, H01R13/6461, H01R24/64|
|Oct 29, 2010||FPAY||Fee payment|
Year of fee payment: 8
|Oct 29, 2014||FPAY||Fee payment|
Year of fee payment: 12
|Jul 6, 2015||AS||Assignment|
Owner name: TYCO ELECTRONICS SERVICES GMBH, SWITZERLAND
Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:ADC TELECOMMUNICATIONS, INC.;REEL/FRAME:036060/0174
Effective date: 20110930