WO2000054370A2 - Ensemble de connexion permettant le couplage de signaux electriques resistant aux erreurs - Google Patents

Ensemble de connexion permettant le couplage de signaux electriques resistant aux erreurs Download PDF

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Publication number
WO2000054370A2
WO2000054370A2 PCT/US2000/006466 US0006466W WO0054370A2 WO 2000054370 A2 WO2000054370 A2 WO 2000054370A2 US 0006466 W US0006466 W US 0006466W WO 0054370 A2 WO0054370 A2 WO 0054370A2
Authority
WO
WIPO (PCT)
Prior art keywords
surface portion
contact
contacts
electrical
plug
Prior art date
Application number
PCT/US2000/006466
Other languages
English (en)
Other versions
WO2000054370A3 (fr
WO2000054370A9 (fr
Inventor
Henry O. Herrmann, Jr.
Original Assignee
The Whitaker Corporation
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by The Whitaker Corporation filed Critical The Whitaker Corporation
Priority to AU35259/00A priority Critical patent/AU3525900A/en
Publication of WO2000054370A2 publication Critical patent/WO2000054370A2/fr
Publication of WO2000054370A3 publication Critical patent/WO2000054370A3/fr
Publication of WO2000054370A9 publication Critical patent/WO2000054370A9/fr

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/66—Structural association with built-in electrical component
    • H01R13/665—Structural association with built-in electrical component with built-in electronic circuit
    • H01R13/6666—Structural association with built-in electrical component with built-in electronic circuit with built-in overvoltage protection
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
    • H01R12/70—Coupling devices
    • H01R12/71—Coupling devices for rigid printing circuits or like structures
    • H01R12/712—Coupling devices for rigid printing circuits or like structures co-operating with the surface of the printed circuit or with a coupling device exclusively provided on the surface of the printed circuit
    • H01R12/716—Coupling device provided on the PCB

Definitions

  • This invention relates generally to electrical connectors for electronic devices . More particularly, the invention relates to electrical contacts for use in electrical connectors particularly suited for use in computers and peripheral equipment therefor to prevent the generation of spurious signals upon the mating of the electrical connector of the peripheral equipment with the electrical receptacle of the computer.
  • the condition that causes errors in electronic systems results from the very high data rates and very low energy of the signals being used within the systems .
  • the input capacitance of the mating plugs, printed circuit board lines, and device capacitance of associated buffer integrated circuit devices are the basis of the problem.
  • Energy must flow from the system bus to charge this input capacitance, (generally tens of picofarads) .
  • a voltage pulse to an adjacent device on the bus occurs, thereby creating errors in the system.
  • the voltage pulse may be no grater than normal signals so no new radiated noise problem is introduced. However, the voltage pulse can cause data to be incorrectly transferred. Accordingly, the interconnections themselves are a large portion of the problem. This problem is universal since it affects both digital and analog electronic circuits.
  • a connector assembly disclosed in U.S. Patent No. 4,747,783 attempts to eliminate timing and control circuitry for power applications.
  • This connector assembly uses a long pin in the "plug” to first make contact with its mating "socket” to gradually increase the voltage to the socket until the entire plug makes mating contact with the socket.
  • the plug comprises a pin having a thin insulating material covering the surface and a thin low resistive material covering the insulating material.
  • the low resistance i.e., 2-60 ohms
  • the thin layer of low resistive material surrounding the thin layer of insulating material introduces an additional problem into the connection between the peripheral device and the electronic system; short capacitance. As explained previously, capacitance is undesirable in a connector .
  • Figure 1 illustrates dual signal electrical contacts of a portion of a signal connector assembly of the present invention .
  • Figure 7 is a view of the leading surface of the contact of the signal connector assembly taken along line
  • Figures 8, 9 and 10 illustrate various embodiments for locating a high resistant material in the signal contact of the signal electrical connector assembly of the present invention.
  • Figure 11 illustrates the performance gained by the signal electrical connector assembly of the present invention relative to a prior art signal electrical connector assembly.
  • FIG. 1 two signal electrical contacts 12 and associated housing of the signal electrical connector assembly 10 of the present invention. It should be recognized that although two contacts are shown in detail for simplicity, there are typically more than two contacts 12 with every signal electrical connector assembly 10 for mating with corresponding contacts of a receptacle assembly. Conversely, the signal connector assembly 10 may comprise a sole signal electrical contact 12 and, more importantly, the practice of the present invention contemplates the utilization of a sole signal electrical contact 12.
  • the signal electrical connector 10 may be interchangeable are referred to herein as a mating plug, and further the signal electrical contact 12 may be simply referred to herein as the contact 12.
  • the signal electrical connector assembly 10 may have a mixture of signal contacts some with means for eliminating the "hot swap" problem in accordance with the practice of the present invention, and some with conventional signal contacts. This feature of mixed signal contacts provides the designer with the selectability to customize the signal electrical connector to meet various needs .
  • the signal electrical connector assembly 10 of Figure 1 comprises two housing members 14 and 16, known in the art, that define a cavity 18.
  • Each of the signal electrical contacts 12 has a leading surface portion 20, a wing section 22, and a trailing section portion 24.
  • the leading surface portion 20 provides initial sliding engagement with at least one flexible electrical conductor, to be described with reference to Figure 2.
  • the leading surface portion 20 is defined by a material having a variable resistance in the range from about 100 ⁇ to about 100M ⁇ to be further described with reference to Figures 8-10.
  • the wing section 22 is merged into the leading surface portion 20 for intermediate engagement of the at least one flexible electrical conductor.
  • the trailing surface portion 24 is merged into the wing section 22 for final sliding engagement of the at least one flexible electrical conductor in a fully mated relationship therebetween to produce a relatively low resistance connection.
  • the trailing surface portion 24 is defined by a conductive material and has a tail 24A that is interconnected to the signal capable of being carried by contact 12.
  • the two contacts 12 are separated by a non-electrically conductive spacer 26 which may be comprised of a plastic material.
  • the spacer 26 is placed between and separates the two electrical contacts 12 by a distance corresponding to a predetermined distance that separates two corresponding flexible electrical conductors of the receptacle assembly, to be described with reference to Figure 2.
  • the non-electrically conductive spacer 26 has a nose section 28 that intercepts and spreads apart the two flexible electrical conductors, before the initial engagement thereof by leading surface portion 18 of each of the two contacts 12.
  • the mating plug 10 carrying the spacer 26 mates with the receptacle assembly 30 which may be described with reference to Figure 2.
  • Figure 2 illustrates a portion of the receptacle assembly 30 that has dimensions complementary to the mating plug 10 so as to accommodate the mating therebetween.
  • the receptacle 30 has many of the features disclosed in U.S. Patent 5,586,915 of R.J. Baker et al which is herein incorporated by reference.
  • the receptacle assembly 30 has flexible electrical conductors 32 x , 32 2 , 32 3 and 32 4 , with at least one conductor thereof for receiving a respective electrical signal being carried by a single contact 12 of the mating plug 10.
  • each of the contacts 12 of Figure 1 mates with a respective flexible conductor, such as 32 ⁇ or 32 3 .
  • the flexible conductors 32 ⁇ , 32 , 32 3 and 32 are typically contacts of a backplane for an electronic system, such as a computer. It should be recognized that only one arrangement for the mating with two contacts 12 is shown for receptacle assembly 30 for the sake of simplicity, but typically there are at least two or more arrangements provided by the receptacle assembly 30 for mating with additional and corresponding contacts 12 over and above the two contacts 12 shown in Figure 2.
  • the receptacle assembly 30 comprises housing members 34 and 36 that are dimensioned to fit into the cavity 18 of the mating plug 10, when the mating plug 10 is moved in the direction 38 into the receptacle assembly 30. The mating of the mating plug 10 and the receptacle 30 may be further described with reference to Figure 3.
  • mating plug 10 allows for final sliding engagement on flexible conductors 32 ⁇ , 32 2 , 32 3 and 32 in a fully mated relationship with the trailing section 24 of each of the two contacts 12 so as to produce a relatively low resistance connection therebetween and which may be further described with reference to Figure 4.
  • a valley 42 is preferably located adjacent the wing section 22 of each electrical contact 12 and the valley 42 leads into the trailing surface portion 24 which, in turn, leads into an electrical conductive pattern 44, known in the art, within the signal electrical connector assembly 10.
  • the leading surface portion 20 and the wing section 22 of the electrical contact 12 may be further described with reference to Figure 6.
  • Figure 6 illustrates the leading surface portion 20 as having contained therein the resistive material (shown in cross hatch) and also illustrates the wing section 22 which may be further described with reference to Figure 7 and which is a view taken along line 7-7 of Figure 6.
  • Figure 7 illustrates the shape of wing section 22, in cross section, and is preferably comprised of a copper based material.
  • the resistive material placed in the leading surface portion 20 is of particular importance to the present invention and has various embodiments which may be described with reference to Figures 8, 9 and 10.
  • the resistive material embedded in the leading surface portion 20 may be of the type and resistivity disclosed in the previously mentioned U.S. Patent Application
  • FIG. 10(C) illustrates a third embodiment of a resistance material 20C (see Figure 11(A)) that eliminates the wing section 22 (see Figures 10(A), (B) and (C) ) .
  • Figures 8-10 provide the variable resistivity necessary to prevent spurious signals, discussed in the "Background” section, when the connector assembly 10 is mated with the receptacle assembly 30.
  • the arrangement of the present invention specifically limits the capacitance between the metallic portions of the mating plug 10 and the receptacle assembly 30 to an acceptably low level. It accomplishes the limitation by minimizing the associated effective coupling area and by minimizing the effective dielectric constant between mating metallic portions which is primarily air.
  • waveform 46 is relatively constant as compared to waveform 48 having the spike portions shown therein.

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)

Abstract

L'invention concerne un ensemble de connexion électrique comprenant un contact présentant une partie à haute résistance. Lorsque le contact de l'ensemble de connexion électrique entre d'abord en contact avec le ou les contacts d'un ensemble prise de courant, la partie à haute résistance empêche une poussée momentanée de tension. L'ensemble de connexion électrique étant, ultérieurement, inséré dans l'ensemble prise de courant, l'énergie allant de la prise de courant à l'ensemble de connexion électrique augmente progressivement. Par la suite, les contacts contenus dans la prise de courant traversent la partie à haute résistance du contact de l'ensemble de connexion électrique et font contact, permettant ainsi la transmission de signaux valides sans créer d'erreurs patentes.
PCT/US2000/006466 1999-03-12 2000-03-10 Ensemble de connexion permettant le couplage de signaux electriques resistant aux erreurs WO2000054370A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU35259/00A AU3525900A (en) 1999-03-12 2000-03-10 A connector assembly providing error resistant coupling of electrical signals

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US12430399P 1999-03-12 1999-03-12
US60/124,303 1999-03-12

Publications (3)

Publication Number Publication Date
WO2000054370A2 true WO2000054370A2 (fr) 2000-09-14
WO2000054370A3 WO2000054370A3 (fr) 2001-02-15
WO2000054370A9 WO2000054370A9 (fr) 2001-09-27

Family

ID=22414049

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2000/006466 WO2000054370A2 (fr) 1999-03-12 2000-03-10 Ensemble de connexion permettant le couplage de signaux electriques resistant aux erreurs

Country Status (3)

Country Link
AU (1) AU3525900A (fr)
TW (1) TW464100U (fr)
WO (1) WO2000054370A2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108429028A (zh) * 2017-02-13 2018-08-21 泰连公司 抑制电谐振的电连接器

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4747783A (en) * 1986-10-28 1988-05-31 International Business Machines Corporation Resistive pin for printed circuit card connector
EP0949715A2 (fr) * 1998-03-13 1999-10-13 The Whitaker Corporation Contact amélioré pour un accouplement de signaux électriques résistant aux erreurs
WO2000001041A1 (fr) * 1998-06-30 2000-01-06 Methode Electronics, Inc. Connecteur electrique muni de contacts a resistance variable

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4747783A (en) * 1986-10-28 1988-05-31 International Business Machines Corporation Resistive pin for printed circuit card connector
EP0949715A2 (fr) * 1998-03-13 1999-10-13 The Whitaker Corporation Contact amélioré pour un accouplement de signaux électriques résistant aux erreurs
WO2000001041A1 (fr) * 1998-06-30 2000-01-06 Methode Electronics, Inc. Connecteur electrique muni de contacts a resistance variable

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108429028A (zh) * 2017-02-13 2018-08-21 泰连公司 抑制电谐振的电连接器
CN108429028B (zh) * 2017-02-13 2023-05-30 泰连公司 抑制电谐振的电连接器

Also Published As

Publication number Publication date
WO2000054370A3 (fr) 2001-02-15
AU3525900A (en) 2000-09-28
TW464100U (en) 2001-11-11
WO2000054370A9 (fr) 2001-09-27

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