EP0286532A2 - Modularer Steckverbinder - Google Patents

Modularer Steckverbinder Download PDF

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Publication number
EP0286532A2
EP0286532A2 EP88400820A EP88400820A EP0286532A2 EP 0286532 A2 EP0286532 A2 EP 0286532A2 EP 88400820 A EP88400820 A EP 88400820A EP 88400820 A EP88400820 A EP 88400820A EP 0286532 A2 EP0286532 A2 EP 0286532A2
Authority
EP
European Patent Office
Prior art keywords
jack
plug
shield plate
insulating housing
contacts
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
EP88400820A
Other languages
English (en)
French (fr)
Other versions
EP0286532A3 (de
Inventor
Yoshiaki Igarashi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
DDK Ltd
Original Assignee
DDK Ltd
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 DDK Ltd filed Critical DDK Ltd
Publication of EP0286532A2 publication Critical patent/EP0286532A2/de
Publication of EP0286532A3 publication Critical patent/EP0286532A3/de
Withdrawn legal-status Critical Current

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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
    • H01R13/648—Protective earth or shield arrangements on coupling devices, e.g. anti-static shielding  
    • H01R13/658—High frequency shielding arrangements, e.g. against EMI [Electro-Magnetic Interference] or EMP [Electro-Magnetic Pulse]
    • H01R13/6581—Shield structure
    • H01R13/6582—Shield structure with resilient means for engaging mating connector
    • 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
    • H01R13/648—Protective earth or shield arrangements on coupling devices, e.g. anti-static shielding  
    • H01R13/658—High frequency shielding arrangements, e.g. against EMI [Electro-Magnetic Interference] or EMP [Electro-Magnetic Pulse]
    • H01R13/6591—Specific features or arrangements of connection of shield to conductive members
    • H01R13/6594—Specific features or arrangements of connection of shield to conductive members the shield being mounted on a PCB and connected to conductive members
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R24/00—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure
    • H01R24/60—Contacts spaced along planar side wall transverse to longitudinal axis of engagement
    • H01R24/62—Sliding engagements with one side only, e.g. modular jack coupling devices
    • H01R24/64—Sliding engagements with one side only, e.g. modular jack coupling devices for high frequency, e.g. RJ 45

Definitions

  • This invention relates to a modular connector with magnetic shields, and more particularly to a modular connector whose magnetic shielding effect is improved.
  • a modular connector including a jack having contacts and an insulating housing, a plug in the form of a parallelepiped to be fitted in the jack to establish electrical connection therebetween, a shield plate covering at least a surface of said jack formed with an opening for fitting said plug and a further shield plate covering surfaces of said plug in parallel with an inserting direction of the plug into the jack to effect magnetic shielding
  • said shield plate for said jack is provided with leaf spring pieces on both sides of said contacts, and said shield plate for said jack is electrically connected with said shield plate for the plug through said leaf spring pieces when the plug is inserted into the jack.
  • the shield plate for the jack is integrally formed with tabs which are inserted with their elastic deformations into apertures formed in a printed circuit substrate to provisionally fix it to the jack when the substrate is loaded in the jack.
  • the shield plate for the plug is provided with tongues extending in an inserting direction of the plug into the jack to improve the magnetic shielding effect.
  • Fig. 4 illustrates the difference in leakage attenuation between shield plates with and without leaf spring pieces on both the sides of contacts (quoted from CISPR Pub.16).
  • the shield plate having leaf spring pieces on both sides of contacts exhibits leakage attenuation several dB larger throughout all frequencies than that in a case leaf spring pieces are not arranged on both sides of contacts.
  • Power inputted in a connector half is outputted into the other connector half, while part of the inputted power is dissipated as disturbing waves. The larger the outputted power, the disturbing waves are less and the leakage attenuation is larger.
  • the leakage attenuation is indicated by outputted power in dB.
  • the tabs are inserted into the apertures of the printed circuit substrate and lower ends of the contacts are inserted into apertures of printed circuit board. Thereafter, they may be dipped in a soldering bath. As the tabs 33 are not removed from the apertures of the substrate, there is no risk of the jack being moved away from the substrate.
  • the shield plate for the jack is earthed through the tabs and an earthing conductor of the printed circuit substrate.
  • the tongues of the shield plate for the plug are inserted in a plug fitting opening to improve the magnetic shield effect.
  • the fixed tongues of the shield plate for the plug are bent so as to snugly fit with the insulating housing for the plug, thereby fixing the shield plate and the insulating housing.
  • the jack is provided with the leaf spring pieces to establish the electrical connection between the shield plates of the jack and plug on both sides of the contacts. Therefore, as shown in Fig. 4, the shield plate having leaf spring pieces on both dies of contacts exhibits leakage attenuation larger throughout all frequencies than in a case leaf spring pieces are not arranged on both sides of contacts.
  • the shield for the jack is provided with one or more tabs adapted to be inserted into the apertures of the printed circuit substrate with elastic deformations to preliminarily fix the jack to the substrate. At least one of the tabs is electrically connected to the shield plate for the jack. Therefore, the preliminary fixation of the jack to the printed circuit substrate is effected in a reliable manner.
  • the shield plates for the jack and plug are earthed by means of the tabs. Therefore, in loading the printed circuit substrates onto jacks by an automatic machine, inadvertent removal of the modular jacks from the substrates is eliminated to accomplish reliable earthing.
  • Figs. 1-3 illustrate the preferred embodiment of the invention.
  • a jack 20 and a plug 40 are shown perspectively looked up from below, and a printed circuit substrate 10 looked down from above, respec­tively.
  • Figs. 2 and 3 illustrate the jack 20 and the plug 40, among which only the jack 20 is in section in horizontal and vertical planes in Figs. 2 and 3, respectively.
  • the printed circuit substrate 10 includes an earthing conductor 14 and a printed circuit board 12 formed with apertures 16 for fixing the jack 20 and apertures 18 for lower end 30 of contacts 28.
  • the jack 20 comprises an insulating housing 22 in the form of a cube or parallelepiped block in its entirety having a plug fitting opening 24 and extensions 26 arranged on both sides of a surface 25 formed with the opening 24.
  • the jack 20 includes contacts 28 (Figs. 2 and 3) whose lower ends 30 extend through a bottom surface of the insulating housing 22 (Fig. 3).
  • Reference numeral 32 illustrates a metal plate for magnetic shield, which is referred to as "shield plate” hereinafter.
  • the shield plate 32 is arranged on the insulating housing 22 to cover the surface 25 of the insulating housing 22 and front surfaces of the extensions 26.
  • the shield plate 32 includes tabs 33 which are bent so as to be in contact with side surfaces of the insulating housing 22 and further extend downward.
  • Each of the tabs 33 is formed in the proximity of a lower end with protrusions 34 extending onto both sides whose total width a (Fig. 1) is larger than a diameter of the apertures 16 of the printed circuit substrate 10.
  • Each of the tabs 33 is further formed with a slit 36 starting from the lower end along a center longitudinal axis of the tab 33.
  • the tabs 33 of the shield plate 32 could be forced into the apertures 16 so as to extend therethrough with the aid of the elasticity of the tabs 33. However, after once the tabs have been inserted through the apertures 16, removal of the tabs 33 from the printed circuit substrate 10 is prevented because of the protrusions 34 engaging lower surface of the substrate 10.
  • the shield plate 32 is formed with leaf spring pieces 38 which are formed by integral parts of the shield plate 32 extending rearward along inner surfaces of the insulating housing 22 (Figs. 2 and 3). As can be seen from Fig. 2, the leaf spring pieces 38 are positioned on both sides of contacts 28.
  • the plug 40 includes an insulating housing 42, a cable 44, contact portions 46 and a shield plate 48.
  • the plug 40 is also substantially in the form of a parallelepiped.
  • the shield plate 48 completely covers an upper surface and side surfaces 49 which are parallel to an inserting direction shown by an arrow 50 in Fig. 1.
  • the shield plate 48 further covers a rear portion of a lower surface of the insulating housing 42 except for an opening 52 for pressing the contact portions 46.
  • the rear portion of the lower surface of the insulating housing 42 will be exposed out of the insulating housing 22 of jack 20 when the plug 40 has been fitted in the jack 20.
  • the shield plate 48 includes tongues 54 which may be formed by extending parts of the shield plate 48 in the inserting direction 50 of the plug 40.
  • the tongues 54 have an area sufficient to cover substantially the bottom surface of the insulating housing 42 except for the contact portions 46.
  • the shield plate 48 further includes fixed tongues 56 which are parts of the shield plate 48 which have been once extended downward and bent so as to be snugly fitted on the insulating housing 42, whereby the shield plate 48 is more reliably fixed to the insulating housing 42. It further serves to make little the unshielded area of the bottom surface of the insulating housing 42.

Landscapes

  • Details Of Connecting Devices For Male And Female Coupling (AREA)
EP88400820A 1987-04-07 1988-04-05 Modularer Steckverbinder Withdrawn EP0286532A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP1987052272U JPS63159282U (de) 1987-04-07 1987-04-07
JP52272/87 1987-04-07

Publications (2)

Publication Number Publication Date
EP0286532A2 true EP0286532A2 (de) 1988-10-12
EP0286532A3 EP0286532A3 (de) 1989-12-27

Family

ID=12910144

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88400820A Withdrawn EP0286532A3 (de) 1987-04-07 1988-04-05 Modularer Steckverbinder

Country Status (3)

Country Link
EP (1) EP0286532A3 (de)
JP (1) JPS63159282U (de)
CA (1) CA1298892C (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0403370A1 (de) * 1989-06-16 1990-12-19 Augat Inc. Gehäuse für mehrreihigen Steckerverbinder
EP0630077A3 (de) * 1993-06-17 1996-01-31 Gen Datacomm Ind Inc Erdungsfeder für modulare Verbinder.
WO1996038888A1 (en) * 1995-05-31 1996-12-05 Polaroid Corporation Electrostatic discharge protection device
EP0755177A1 (de) * 1995-07-21 1997-01-22 Molex Incorporated Abschirmdeckel mit zugehörigem Abschirmverfahren

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3852279A (en) * 1973-03-12 1974-12-03 Squibb & Sons Inc 7-substituted -3,3a,4,5,6,7-hexahydro-3-substituted-2h- pyrazolo (4,3-c)pyridines
US4386814A (en) * 1981-08-17 1983-06-07 Amp Incorporated Kit for converting a panel opening to a shielded pin receptacle
BR8505361A (pt) * 1984-10-29 1986-08-05 Du Pont Blindagem inteirica de conecto de painel de circuito impresso
US4571012A (en) * 1984-12-21 1986-02-18 Molex Incorporated Shielded electrical connector assembly

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0403370A1 (de) * 1989-06-16 1990-12-19 Augat Inc. Gehäuse für mehrreihigen Steckerverbinder
EP0630077A3 (de) * 1993-06-17 1996-01-31 Gen Datacomm Ind Inc Erdungsfeder für modulare Verbinder.
WO1996038888A1 (en) * 1995-05-31 1996-12-05 Polaroid Corporation Electrostatic discharge protection device
EP0755177A1 (de) * 1995-07-21 1997-01-22 Molex Incorporated Abschirmdeckel mit zugehörigem Abschirmverfahren

Also Published As

Publication number Publication date
JPS63159282U (de) 1988-10-18
EP0286532A3 (de) 1989-12-27
CA1298892C (en) 1992-04-14

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