EP0251518B1 - Elektrische Steckverbinder - Google Patents

Elektrische Steckverbinder Download PDF

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Publication number
EP0251518B1
EP0251518B1 EP19870305029 EP87305029A EP0251518B1 EP 0251518 B1 EP0251518 B1 EP 0251518B1 EP 19870305029 EP19870305029 EP 19870305029 EP 87305029 A EP87305029 A EP 87305029A EP 0251518 B1 EP0251518 B1 EP 0251518B1
Authority
EP
European Patent Office
Prior art keywords
arm
locking bar
passage
terminal
passages
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
Application number
EP19870305029
Other languages
English (en)
French (fr)
Other versions
EP0251518A2 (de
EP0251518A3 (en
Inventor
Keith Terence Hanson
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.)
ZF International UK Ltd
Original Assignee
Lucas Industries 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 Lucas Industries Ltd filed Critical Lucas Industries Ltd
Publication of EP0251518A2 publication Critical patent/EP0251518A2/de
Publication of EP0251518A3 publication Critical patent/EP0251518A3/en
Application granted granted Critical
Publication of EP0251518B1 publication Critical patent/EP0251518B1/de
Expired 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
    • H01R13/40—Securing contact members in or to a base or case; Insulating of contact members
    • H01R13/42—Securing in a demountable manner
    • H01R13/436—Securing a plurality of contact members by one locking piece or operation
    • H01R13/4364—Insertion of locking piece from the front

Definitions

  • This invention relates to electrical connectors, particularly but not exclusively for making electrical connection to devices such as electro-magnetic relays or the like wherein connection is to be made to a plurality of parallel blade terminals extending from one face of the device.
  • an electrical connector the body of which contains a plurality of parallel terminal receiving passages and parallel locking bar receiving passages, terminals received in their respective passages being held against withdrawal from their passages by respective lances or the like on the terminals which engage shoulders in their respective passages and by parts of the passage wall defining respective arms which are deflected to engage behind the correctly positioned terminals by locking bars introduced into the locking bar passages.
  • the locking bars are carried as integral components projecting from a common plate and the intention is that in the event that one or more terminal is not fully inserted into its respective passage then the or each terminal will obstruct the deflection of the respective arm so preventing full insertion of the respective locking bar. Since all of the locking bars are carried by a common plate, then should even one of the locking bars be prevented from reaching its fully inserted position then the plate will not be correctly engaged to the body of the connector and will provide a clear visual indication of the fact that one of the terminals at least is not properly inserted. As described in application 8430l3l5.2 the operative end regions of the locking bars are wedge-shaped to facilitate deflection of the respective arms.
  • an electrical connector comprising a moulded synthetic resin body, a plurality of parallel terminal receiving passages in the body, said passages being open at one face of the body to permit insertion of respective terminals, and having abutment surfaces to limit movement of the terminals in the passages in the insertion direction, each of said passages having a shoulder intermediate the ends thereof for engagement by a locking latch of the terminal to resist withdrawal of the terminal, and each passage being open at an opposite face of the body to provide access to the terminals whereby mating terminals can be introduced into said terminals of the connector in use, the body further being provided with a plurality of locking bar passages extending into the body parallel to said terminal receiving passages, each locking bar passage being positioned adjacent a respective terminal receiving passage and the connector further including a plurality of locking bars for insertion into respective locking bar passages, the body defining, between each terminal receiving passage and its respective locking bar passage, a deflectable arm which can be deflected from a rest position,
  • the locking bars are carried by a common locking plate which, when the bars are fully inserted in the body, engages said opposite face of the body, said plate having apertures therein to provide access to said terminal receiving passages.
  • said locking bars are integral with said plate.
  • the electrical connector is basically very similar to the connector disclosed in our European Patent Application 8430l3l5.2 and in view of the full description given in the specification of application 8430l3l5.2 only a general description of the basic construction will be given herein.
  • the connector body ll is a generally cubic synthetic resin moulding and has associated therewith a moulded synthetic resin locking member l2. Extending through the body ll between upper and lower faces l3, l4 thereof, is a plurality of terminal receiving passages l5.
  • the passages l5 are of two different sizes, adapted to receive different sizes of terminal l6, each of the terminals l6 being a flat socket terminal of the kind known as a LUCAR (Registered Trade Mark).
  • the terminals l6 are inserted into their respective passages l5 from the ends of the passages l5 open at the lower face l4 of the body.
  • Each terminal l6 includes an integral resilient lance l7 which is deflected by ramp l8 on the wall of the respective passage l5 as the terminal is inserted.
  • the lance l7 can restore towards its original position to engage behind a shoulder l9 on the wall of the passage thus resisting withdrawal of the terminal l6 from the passage.
  • each terminal receiving passage l5 Associated with each terminal receiving passage l5 is a respective locking bar receiving passage 2l.
  • the locking bar passages 2l extend into the body ll from the face l3, and extend parallel to the terminal receiving passages l5.
  • a region of the wall of the body ll which separates each terminal receiving passage l5 from its respective locking bar receiving passage 2l is shaped, at a point part way along the length of the passage l5, to define a resilient arm 22 extending in the direction of the length of the passages l5, 2l, and having its free end surface 23 presented towards the upper face l3 of the body ll.
  • FIG 2 illustrates the locking bar arrangement described in our co-pending European Patent Application 8430l3l5.2, from which it can be seen that the locking bars 24 have inclined ramp surfaces 25 at their free ends for deflecting the respective arms 22.
  • the ramp surfaces 25 provide the locking bars with a wedge-shaped configuration and thus after an arm 22 has been deflected sufficiently far to engage the misaligned terminal l6 then any additional insertion force applied to the locking bar is transmitted by the wedge-shaped end region primarily to the free end region of the arm 22, and through the arm 22 to the associated terminal l6.
  • insertion force has been found in some cases to result in sufficient distortion of the free end region of an arm 22 and/or the associated terminal l6, to permit the locking bar 24 to be inserted "fully home” in its respective passage.
  • Thereafter of corse there is no visual indication (as would otherwise arise from the locking bar not being "fully home") that a terminal is not fully inserted into its respective passage l5, and thus the visual appearance of the connector is that of a correctly assembled connector.
  • each locking bar l24 is provided on its face presented to the respective passage l5 in use, with an integral longitudinal extending rib l25 terminating short of the free end of the locking bar l24 in a stop surface l26 extending transverse to the length of the locking bar l24.
  • each locking bar l24 that is to say the region which coacts with the arm 22 in use, has a maximum thickness restricted to a value such that it will deflect the free end region of its respective arm 22 only sufficiently far to lightly engage a terminal l6 which has not been fully inserted into its respective passage l5. Notwithstanding this maximum thickness of the operative end region l27 of each bar l24 it will be understood that in the event that a terminal is fully inserted into a respective passage l5 then as the respective locking bar l24 reaches its fully inserted position sufficient deflection of the arm 22 will have occurred to cause the end surface 23 to lie behind the socket region of the respective terminal l6.
  • FIG. 4 it can be seen that a terminal l6 has been fully inserted into its respective passage l5 and the locking bar l24 has been fully inserted into its respective passage 2l. Notwithstanding the restricted thickness of the operative end region l27 of the locking bar l24 full deflection of the arm 22 has occurred since the operative region l27 of the locking bar coacts with the arm 22 adjacent its root, rather than adjacent its free end surface 23. Obviously, the closer the region l27 approaches the root of the arm 22 then the greater will be the deflection at the free end of the arm. In particular it will be noted that the arm 22 is deflected sufficiently far for the stop surface l26 of the bar l24 to slide past the end surface 23 of the arm 22.
  • the free end surface 23 of the arm remains in a position where it can be abutted by the stop surface l26 of the bar l24. Immediately such abutment occurs then further insertion movement of the bar l24 is prevented.
  • the abutment of the surface l26 with the surface 23 is a face to face abutment in a plane at right angles to the insertion direction of the bar l24.
  • the positioning of the stop surface l26 and the free end 23 of the arm 22 is such that when abutment occurs the bar l24 is someway short of its fully inserted position and thus a visual indication is given that the terminal l6 is not fully inserted in the passage l5.
  • the abutment of the surface l26 with the surface 23 can of course accept considerable insertion force loading on the bar l23, and thus, short of total destruction of the connector, the bar l24 will not reach its fully inserted position and even an unskilled operator will recognise that there has been some failure to assemble the connector correctly.
  • each bar l24 is tapered so as to present an inclined face to the respective arm 22 in order both to facilitate insertion of the bar into its passage 2l and to facilitate initial deflection of the respective arm 22 during insertion.
  • each bar l24 Extending part way along the rib l25 of each bar l24 is a further rib l28 of increased height.
  • Each rib l28 terminates short of the surface l26 and is provided in order to prevent insertion of the bar l24 in the event that the respective terminal l6 has been inserted back to front.
  • Each terminal has a flat face from which the lance l7 projects and an opposite face defined by a pair of parallel rolled over portions. The rolled over portions should be presented towards the side of the passage l5 containing the arm 22 in which case the rib l28 can pass between the rolled over portions of the terminal during insertion of the bar l24.
  • the locking bars l24 extend parallel to one another and are integral with a common locking plate to form the locking member l2 the plate having apertures therein to provide access, for mating terminals, to the terminals l6 in the passages l5.
  • the undersurface of the plate of the locking member l2 engages the upper face l3 of the body ll. If any one of the associated terminals has not been fully introduced into its respective passage l5 then the plate of the locking member l2 cannot be brought into facial contact with the end face l3 of the body.

Landscapes

  • Connector Housings Or Holding Contact Members (AREA)

Claims (3)

  1. Elektrisches Verbindungsstück, mit einem gegossenen synthetischen Harzkörper (11), einer Mehrzahl von parallelen Anschlußstift-Aufnahmedurchgängen (15) in dem Körper, wobei die Durchgänge (15) an einer Fläche des Körpers (11) zum Ermöglichen der Einführung entsprechend der Anschlußstifte (16) offen sind und Anschlagoberflächen zum Begrenzen der Bewegung der Anschlußstifte (16) in den Durchgängen (15) in der Einführungsrichtung aufweisen, jeder Durchgang (15) eine Schulter (19) zwischen seinen Enden zum Angreifen durch einen Sperriegel (17) des Anschlußstiftes (16) zum Widersetzen gegen das Herausziehen des Anschlußstiftes (16) aufweist und jeder Durchgang (15) an einer entgegengesetzten Fläche des Körpers (11) zum Vorsehen eines Zugriffes zu den Anschlußstiften (16) offen ist, wodurch passende Anschlußstifte in die Anschlußstifte (16) des benutzten Verbindungsstückes eingeführt werden können, wobei der Körper (11) weiter mit einer Mehrzahl von Riegeldurchgängen (21) versehen ist, die sich in den Körper (11) parallel zu den Anschlußstift-Aufnahmedurchgängen (15) erstrecken, jeder Riegeldurchgang (21) benachbart zu einem entsprechenden Anschlußstift-Aufnahmedurchgang (15) angeordnet ist und wobei das Verbindungsstück weiterhin eine Mehrzahl von Riegeln (124) zur Einführung in die entsprechenden Riegeldurchgänge (21) aufweist, der Körper (11) zwischen jedem Anschlußstift-Aufnahmedurchgang (15) und dessen entsprechendem Riegeldurchgang (21) einen auslenkbaren Arm (22) definiert, der aus einer Ruheposition durch Einführung eines Riegels (124) in den entsprechenden Riegeldurchgang (21) ausgelenkt werden kann in eine Betriebsposition, in der der Arm in den entsprechenden Anschlußstift-Aufnahmedurchgang (15) vorsteht zum Liegen in dem Weg des Zurückziehens des entsprechenden Anschlußstiftes (16), dadurch gekennzeichnet, daß jeder Arm (22) und der entsprechende Riegel (124) so angeordnet sind, daß, wenn sich der Riegel (124) seiner voll eingeführten Position nähert, die Zusammenwirkung zwischen dem Arm (22) und dem Riegel (124) an einem Punkt entlang der Länge des Armes (22) stattfindet, der so in einem Abstand von dem freien Ende des Armes angeordnet ist, daß für den Fall, daS der Anschlußstift (16) des entsprechenden Anschlußstift-Aufnahmedurchganges (15) noch nicht voll in den Durchgang (15) eingeführt ist und somit von dem Arm (22) während der Auslenkung angegriffen wird, dann verursacht wird, daß sich der Arm (22) in einen Bereich biegt, der in einem Abstand von seinem freien Ende vorgesehen ist, und die freie Endoberfläche (23) des Armes (22) in einer Position verbleibt, in der eine Anschlagoberfläche (126) auf dem entsprechenden Riegel (124) dagegenstoßen kann zum Verhindern der vollen Einführung des Riegels (124).
  2. Elektrisches Verbindungsstück nach Anspruch 1, dadurch gekennzeichnet, daß die Riegel (124) von einer gemeinsamen Riegelplatte getragen werden, die, wenn die Riegel (124) voll in den Körper eingeführt sind, an die entgegengesetzte Fläche des Körpers (11) angreift, wobei die Platte Öffnungen darin zum Vorsehen eines Zugriffes zu den Anschlußstift-Aufnahmedurchgängen (15) aufweist.
  3. Elektrisches Verbindungsstück nach Anspruch 2, dadurch gekennzeichnet, daß die Riegel (124) einstückig mit der Riegelplatte gebildet sind.
EP19870305029 1986-06-21 1987-06-08 Elektrische Steckverbinder Expired EP0251518B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8615183 1986-06-21
GB868615183A GB8615183D0 (en) 1986-06-21 1986-06-21 Electrical connectors

Publications (3)

Publication Number Publication Date
EP0251518A2 EP0251518A2 (de) 1988-01-07
EP0251518A3 EP0251518A3 (en) 1988-11-09
EP0251518B1 true EP0251518B1 (de) 1992-04-01

Family

ID=10599867

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19870305029 Expired EP0251518B1 (de) 1986-06-21 1987-06-08 Elektrische Steckverbinder

Country Status (3)

Country Link
EP (1) EP0251518B1 (de)
DE (1) DE3777892D1 (de)
GB (1) GB8615183D0 (de)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3834651A1 (de) * 1988-10-12 1990-04-19 Daut & Rietz Trw Elektrische kupplungsvorrichtung
IT1237759B (it) * 1989-11-10 1993-06-17 Amp Italia Connettore di paratia stagno per veicoli.
DE4029300C1 (en) * 1990-09-15 1992-03-12 Kabelwerke Reinshagen Gmbh, 5600 Wuppertal, De Multipole electrical connector - has crimped connectors forced against projections on housing to provide secure retention
JP2512095Y2 (ja) * 1990-11-26 1996-09-25 日本エー・エム・ピー株式会社 ダブルロック型電気コネクタ
JP3257919B2 (ja) * 1995-03-07 2002-02-18 住友電装株式会社 リテーナ式コネクタ
GB9520188D0 (en) * 1995-10-03 1995-12-06 Amp Great Britain Electrical connector having front loadable secondary locking member
US5928034A (en) * 1996-07-30 1999-07-27 Sumitomo Wiring Systems, Ltd. Connector with terminal locking and locking assurance features
US6981899B1 (en) 2004-07-27 2006-01-03 Hubbell Incorporated Electrical connector assembly with non-orthogonal jack stop surface for engaging plug latch abutment

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8306125D0 (en) * 1983-03-05 1983-04-13 Lucas Ind Plc Electrical connectors
US4557542A (en) * 1984-06-11 1985-12-10 Amp Incorporated Connector with means for retaining terminals and verifying seating

Also Published As

Publication number Publication date
EP0251518A2 (de) 1988-01-07
DE3777892D1 (de) 1992-05-07
EP0251518A3 (en) 1988-11-09
GB8615183D0 (en) 1986-07-23

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