EP0392108B1 - Housing assembly in combination with a flat power cable connector - Google Patents

Housing assembly in combination with a flat power cable connector Download PDF

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Publication number
EP0392108B1
EP0392108B1 EP89304803A EP89304803A EP0392108B1 EP 0392108 B1 EP0392108 B1 EP 0392108B1 EP 89304803 A EP89304803 A EP 89304803A EP 89304803 A EP89304803 A EP 89304803A EP 0392108 B1 EP0392108 B1 EP 0392108B1
Authority
EP
European Patent Office
Prior art keywords
housing
rearward
cable
terminals
latching
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.)
Expired - Lifetime
Application number
EP89304803A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0392108A3 (en
EP0392108A2 (en
Inventor
Dean Arnold Puerner
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.)
Whitaker LLC
Original Assignee
Whitaker LLC
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 Whitaker LLC filed Critical Whitaker LLC
Publication of EP0392108A2 publication Critical patent/EP0392108A2/en
Publication of EP0392108A3 publication Critical patent/EP0392108A3/en
Application granted granted Critical
Publication of EP0392108B1 publication Critical patent/EP0392108B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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
    • H01R12/77—Coupling devices for flexible printed circuits, flat or ribbon cables or like structures
    • H01R12/78—Coupling devices for flexible printed circuits, flat or ribbon cables or like structures connecting to other flexible printed circuits, flat or ribbon cables or like structures
    • 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
    • H01R12/77—Coupling devices for flexible printed circuits, flat or ribbon cables or like structures
    • H01R12/777—Coupling parts carrying pins, blades or analogous contacts
    • 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
    • H01R12/77—Coupling devices for flexible printed circuits, flat or ribbon cables or like structures
    • H01R12/771—Details
    • H01R12/775—Ground or shield arrangements

Definitions

  • the present invention relates to the field of electrical connectors and more particularly to terminating flat power cables.
  • Flat power cable is entering commercial use for transmitting electrical power of for example 75 amperes nominal, and includes a flat conductor one inch wide and about 0.0508 cm (0.020 inches) thick with an extruded insulated coating of about 0.01016 cm to 0.02032 cm (0.004 to 0.008 inches) thick over each surface with the cable having a total thickness averaging about 0.08636 cm (0.034 inches).
  • a dual conductor flat cable wherein a pair of parallel spaced coplanar flat conductor strips having insulation extruded therearound define power and return paths for electrical power transmission. It is desired to provide housing means for a connector having terminals terminated to single or dual conductor flat power cable.
  • the connector housing prefferably provides means for limiting axial and vertical movement of the terminals within the housing.
  • the present invention consists in a housing assembly in combination with a flat power cable, as defined in claim 1.
  • a housing assembly for housing the terminated end of a flat wide power cable, the cable being of the type having one or two flat relatively wide conductors therein with a pair of corresponding relatively wide terminals terminated onto the cable end and each having a nominal vertical height, the assembly having a housing having cavities in communication with the rearward end of the housing and generally dimensioned slightly larger cross-sectionally than the terminals, in which cavities the terminals are to be disposed upon insertion thereinto until engaging rearwardly facing stop surfaces along the cavities with contact sections of the terminals extending through forward passageways of the housing to be exposed along the mating face for mating with corresponding contact sections of another electrical article, the housing also having forwardly facing stop means for terminal retention.
  • WO88/07775 discloses a housing assembly for housing terminations on ends of leads, the housing assembly having cavities in which the terminals are disposed with contact sections of the terminals exposed along a mating face for mating with corresponding contact sections of another electrical article, the housing assembly comprising a housing which is an integral member, with respective cavities in communication with the rearward end of the housing for receiving the terminals when inserted thereinto after the terminals have been terminated onto the ends of leads, and having rearwardly facing stop surfaces providing forward stops for the terminals and further including forward passageways through which the contact sections extend to the mating face and rearward members, securable onto the rearward end of the housing after insertion of the terminals into the housing cavities.
  • the rearward members define forwardly facing stop surfaces and retain the terminals within the housing cavities.
  • the pair of terminals and the housing therefor may be used with single conductor flat power cable but are especially suitable for terminating dual conductor flat power cable.
  • the terminals include contact sections extending forwardly from the cable end and extending forwardly from or otherwise exposed along the mating face of the housing for electrical connection with corresponding contact means of another electrical article such as another cable connector, a header mounted on a printed circuit board, terminal posts of a power supply, or a bus bar.
  • Each terminal is of the type having a pair of opposed plate sections transversely across each of which are an array of shearing wave shapes alternating with relief recesses, so that when the pair of plate sections disposed against major surfaces of the flat cable at an end thereof are pressed together and against the cable therebetween, the arrays of shearing wave shapes cooperate to shear the conductor of the flat cable into a plurality of strips which remain integral with the cable.
  • the wave shapes also extrude the newly sheared conductor strips into the opposing relief recesses so that newly sheared conductor edges are moved adjacent electrical engagement surfaces defined by the vertical side edges of the adjacent shearing wave shapes forming electrical connections of the adapter terminals with the flat cable conductors.
  • the pair of plate sections of each terminal both extend forwardly from a rearward cable-receiving terminal end where they coextend forwardly at a slight angle from a pair of bight sections spaced laterally apart defining a cable-receiving slot therebetween of known transverse width.
  • Tab-shaped portions are formed on the end section of the cable and are inserted through the cable-receiving slots of the terminals and are disposed between upper and lower plate sections of each terminal.
  • the upper and lower plate sections of each pair are pressed respectively together by being rotated about the bight sections which act as integral hinges, so that the shearing wave shapes shear and extrude strips of the conductor (or conductors) of the cable forming a termination of the terminals to the cable.
  • the two tab-shaped cable portions fit through the terminal slots with no more than a slight clearance with the inside edges of the pair of bight sections of each terminal. More importantly, the exposed axial conductor edges are formed precisely to be adjacent outwardly facing edges of the inner ones of the bight sections of the respective terminals.
  • the inner bight section already at least adjacent the conductor edge along the cable slot is deformed slightly against the conductor edge thereby biting into the metal, while the outer bight section is deformed slightly against and into the insulative coating along the adjacent lateral outer edge of the cable, thus gripping the tab-shaped cable portions after termination to act as stop mechanisms against axial movement of the terminals with respect to the cable and relieving stress on the terminations.
  • the terminals terminated to the tab-shaped cable portions are insertable into respective openings at the rearward end of a housing member until the terminals are disposed within respective cavities and the contact sections are disposed appropriately along the housing mating face.
  • the housing member of the connector of the present invention is preferably molded as an integral member to precisely define upper and lower pairs of terminal-proximate ledges of precisely fixed spacing. The pairs of ledges maintain each of the terminals closely positioned vertically within their respective cavities to assist in minimizing detrimental effects of vibration on the terminations and are assisted in that function by a central rib between the cavities joining the upper and lower housing cover portions.
  • a strain relief member is then securable to the rearward housing end to define a cable exit, and includes rearward stop surfaces to maintain the terminals properly positioned axially within the housing, maintaining the contact sections in position axially to enhance wear resistance of the contact surfaces by minimizing axial movement thereof.
  • the cable strain relief member of the connector of the present invention is preferably integrally molded of plastic and bifurcated having upper and lower transverse struts joined at one lateral end, to be inserted over the flat cable from one side thereof after termination by the terminals.
  • the member has a pair of latch arms each extending forwardly from a respective lateral end, which latchingly engage the housing when moved forwardly along the cable and against the rearward end of the housing.
  • One of the latch arms is an integral member at the integrally joined lateral end while the other is split horizontally comprising upper and lower arm sections respectively extending forwardly from the lateral ends of the upper and lower struts at the split lateral end.
  • strain relief member which is an integral member latchable to the housing and which snugly fits about the flat cable.
  • Connector 10 of Figure 1 includes a housing member 12 and rearward cable exit or strain relief member 14, adapted to house a pair of terminals 16 terminated onto flat power cable 18.
  • Connector 20 is matable with connector 10 and is adapted to house a corresponding pair of terminals 22 which are shown to include post sections 24 extending rearwardly from housing 26 for insertion into corresponding plated through-holes of a printed circuit board (not shown).
  • Terminals 22 also are shown having spring arm contact sections 28 at forward ends thereof matable with splines 30 at forward ends of terminals 16, when connectors 10 and 20 are mated.
  • Housing 12 includes a plurality of forward passageways 32 in communication with mating face 34 within each of which is disposed a spline 30 after terminals 16 are inserted into housing member 12 from rearward end 36.
  • Housing 26 of connector 20 includes a large cavity 38 within which are disposed spring arms 28, and large cavity 38 is adapted to receive thereinto forward section 40 of housing 12 of connector 10 upon mating, with spring arms 28 received within passageways 32 to electrically engage respective splines 30.
  • Housing 12 is shown having a pair of latch arms 42 along sides thereof which ride over and latchingly engage a pair of corresponding latching projections 44 of housing 26 to secure the connectors together.
  • Latch arms 42 are shown having rearward gripping portions 46 deflectable inwardly to facilitate delatching from projections 44 upon connector unmating.
  • strain relief member 14 is insertable across flat cable 18 from lateral edge 48 and then movable forwardly therealong to latch securely to housing member 12 along rearward end 36.
  • Strain relief member 14 includes upper and lower struts 50,52 extending laterally from integral section 54 spaced slightly apart for cable 18 eventually to be disposed therebetween.
  • first latch arm 58 extends forwardly to inwardly directed latching projection 60.
  • second latch arms 64 extend forwardly from ends of upper and lower struts 50,52 to inwardly directed latching projections 66 which will cooperate as a single latch arm during latching to connector housing 12.
  • Housing member 12 includes near rearward end 36 and along outer surfaces 68 a pair of latching recesses 70 in channels defined between upper and lower channel wall surfaces 71, for receiving thereinto latching projections 60,66,66 when strain relief member 14 is secured to housing member 12.
  • cable strain relief member 14 defines a cable exit or slot 72 between facing surfaces 74,76 of upper and lower struts 50,52 with rounded rearward corners 78 and between side walls 80,82,82 near lateral ends 56,62 respectively.
  • the distance between side walls 80,82,82 is preferably selected to be slightly less than the nominal width of cable 18 to generate a slight interference fit width wise after connector assembly. Further it is preferred that after connector assembly facing surfaces 74,76 of upper and lower struts 50,52 clamp against upper and lower major surfaces 84,86 of cable 18.
  • Forwardly facing surfaces 88 of struts 50,52 shown in Figure 1 will act as rearward limits or stops engageable by terminals 16 after connector assembly; rounded recesses 90 in surfaces 88 are shown within which rearwardmost portions of terminals 16 are received ( Figures 13 and 14).
  • a pair of large cavities 92 extend forwardly from rearward housing end 36 to rearwardly facing stop surfaces 93, to receive terminals 16 inserted thereinto.
  • Pairs of upper and lower ledges 94 are defined axially along both sides of each cavity 92 between which terminals 16 will be disposed, with the distance between the facing ledge surfaces precisely selected so that after connector assembly terminals 16 will be allowed little vertical movement, if any, but allowing for some tolerance in the eventual height of terminals 16 which are terminated to cable 18 ( Figures 13 and 14).
  • Housing member 12 being integrally molded allows the distance between facing ledge surfaces to be precisely controlled.
  • Vertical barrier wall 96 between cavities 92 disallows upper and lower cover sections 98,100 of housing 12 from slight spreading and thus maintains the distance between facing ledge surfaces of the inner pairs thereof.
  • Terminals 16 include stamped and formed adapter members 102 disposed immediately against cable surfaces 84,86, and also preferably include insert members 104 secured along cable-remote surfaces of adapter members 102 and being of high copper content which establish gas-tight electrical engagement with sheared edges of the cable conductors after termination.
  • Figure 4 illustrates a pair of adapter members 106 having blade-like contact sections 108 of the type suitable for termination to terminal posts of a power supply; it is preferred that the terminals include insert members but such inserts are not shown in order to assist in illustrating the method of termination.
  • Cable 18 includes two parallel spaced coplanar flat conductor members 10 therein coated by an insulative covering which also defines a medial portion 112 between the conductors 110.
  • cable 18 is prepared by cutting an axial slot 114 rearwardly from the cable end along the cable centerline, slot 114 having a selected width, thereby defining a pair of tab-shaped cable portions 116.
  • Rearward ends 118 of adapter members 106 include a pair of bight sections 120,122 which join upper and lower plate sections 124,126 of adapter members 106.
  • adapter member 128 having two adapter sections 130 each having a cable-receiving slot between pairs of bight sections 132,134.
  • Adapter member 128 is integral across contact section 136 containing splines 138 and is suitable for terminating single conductor cable 140 which has been prepared similarly to cable 18 of Figure 4 to have a pair of tab-shaped cable portions 142.
  • Tab-shaped cable portions 142 are inserted into and through the cable-receiving slots until cable portions 142 are disposed between pairs of upper and lower plate sections 144,146.
  • Defined transversely across upper and lower plate sections 144,146 are arrays of alternating shearing wave shapes 148 and relief recesses 150, with wave shapes 148 extending toward upper and lower major surfaces of the flat cable.
  • a representative terminal 16 is shown having an adapter member 102 and upper and lower insert members 104a,104b, with a tab-shaped cable portion 152 extending through cable-receiving slot 154 and disposed between upper and lower plate sections 156,158 of adapter member 102.
  • Crests 160,162 of shearing wave shapes 164,166 of upper and lower plate sections 156,158 are shown against cable surfaces 84,86 prior to termination in Figure 6; in Figure 7, wave shapes 164,166 have sheared the conductor of cable 18 and have extruded the thus-sheared conductor strips 168 into the opposing relief recesses 170,172 to define alternating and interlocking upper and lower wave joints 174,176 disposed in respective apertures 178 of insert members 104.
  • sheared conductor edges are disposed adjacent and in electrical engagement with the vertical wall surfaces simultaneously defining the sides of wave shapes 180 and longitudinal side walls of apertures 178 adjacent and alternating with wave shapes 180 transversely across upper and lower insert members 104a,104b.
  • the wave joints may preferably be split by staking, and the insert members also staked along outwardly facing surfaces of wave shapes 180 to enhance the gas-tight nature of the electrical connections between the insert members and the sheared conductor edges by imparting stored energy in the wave joints.
  • FIGs 8 and 9 can be seen the gripping of lateral edges of the tab-shaped conductor portions before and after termination of terminals 16 thereto.
  • Inner and outer bight sections 182,184 define cable-receiving slot 154 between facing edges 186,188 thereof.
  • Cable 18 has been prepared as in Figure 4 by cutting a slot 190 along the cable centerline, thereby shearing conductor 192 forming a sheared edge 194.
  • Cable insulation 196 extends along lateral cable edge 198 and also defines medial strip 200 between the pair of conductors.
  • Figures 10 to 12 illustrate the assembly of connectors 10 and 20.
  • Terminals 16 have been terminated to tab-shaped cable portions 152 including splitting the wave joints as indicated at 206 and staking the inserts between the wave joints as indicated at 208.
  • Cable strain relief member 14 has been inserted over cable 18 from lateral edge 48 in Figure 10.
  • terminals 16 have been inserted into cavities 92 of housing member 12 with splines 30 within passageways 32, and strain relief member 14 has been latched to housing member 12 by latching projections 66 in latching recesses 70; terminals 22 have been secured in housing member 26 of connector 20 with contact sections 28 arrayed across cavity 38 and post sections 24 extending outwardly from housing member 26.
  • connectors 10 and 20 are shown latched and mated together, with latching surfaces 210,212 of latch arms 42 and projections 44 having a slight reverse angle for vibration resistance; forward section 40 of housing member 12 has been received within cavity 38 of housing member 26 and with spring arm contact sections 28 of terminals 22 electrically engaged with splines 30 of terminals 16, alternating upwardly and downwardly across the terminals.
  • Figures 13 and 14 show connectors 10 and 20 being mated, with a downwardly angled spline 30a and an upwardly deflectable spring contact arm 28a electrically engageable together.
  • Cable strain relief member 14 is shown latched in place defining the cable exit with cable 18 clamped between facing surfaces 74,76 of upper and lower struts 50,52 and a bight section 184 of terminal 16 disposed in a recess 90.
  • FIGS 15 and 16 are shown an alternate arrangement wherein terminals 250,252 are terminated to ends of respective cable portions 254,256 containing individual conductors of a dual conductor cable 258.
  • Individual housing members 260 are shown for terminals 250,252, with individual cable strain relief members 262 shown to be placed and latched to rearward ends of housing members 260.
  • the arrangement shown accommodates the desire to space the connectors 264,266 apart for the power and return paths established by the individual conductors of the cable.

Landscapes

  • Coupling Device And Connection With Printed Circuit (AREA)
  • Multi-Conductor Connections (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)
EP89304803A 1989-04-14 1989-05-11 Housing assembly in combination with a flat power cable connector Expired - Lifetime EP0392108B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US33879089A 1989-04-14 1989-04-14
US338790 1999-06-23

Publications (3)

Publication Number Publication Date
EP0392108A2 EP0392108A2 (en) 1990-10-17
EP0392108A3 EP0392108A3 (en) 1991-04-24
EP0392108B1 true EP0392108B1 (en) 1994-09-07

Family

ID=23326181

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89304803A Expired - Lifetime EP0392108B1 (en) 1989-04-14 1989-05-11 Housing assembly in combination with a flat power cable connector

Country Status (4)

Country Link
EP (1) EP0392108B1 (ko)
JP (1) JP2733622B2 (ko)
KR (1) KR940008901B1 (ko)
DE (1) DE68918080T2 (ko)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11195445A (ja) * 1997-12-26 1999-07-21 Amp Japan Ltd 可撓性平形ケ−ブル用電気コンタクト
KR101133954B1 (ko) * 2010-07-20 2012-04-05 (주)우주일렉트로닉스 플랫 케이블용 커넥터

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0342868A1 (en) * 1988-05-13 1989-11-23 The Whitaker Corporation Electrical terminal for flat power cable

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5413584Y2 (ko) * 1975-11-27 1979-06-08
JPS5650695Y2 (ko) * 1976-06-22 1981-11-27
US4655525A (en) * 1985-07-03 1987-04-07 Amp Incorporated Means for retaining terminals in a connector
US4787864A (en) * 1987-03-25 1988-11-29 Amp Incorporated Terminal stabilization and retention system for an electrical connector
CA1277739C (en) * 1987-10-08 1990-12-11 Andre Jelwan Electrical connectors

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0342868A1 (en) * 1988-05-13 1989-11-23 The Whitaker Corporation Electrical terminal for flat power cable

Also Published As

Publication number Publication date
KR940008901B1 (ko) 1994-09-28
EP0392108A3 (en) 1991-04-24
JPH02288172A (ja) 1990-11-28
EP0392108A2 (en) 1990-10-17
KR900017230A (ko) 1990-11-15
DE68918080D1 (de) 1994-10-13
DE68918080T2 (de) 1995-03-16
JP2733622B2 (ja) 1998-03-30

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