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WO1997010627A1 - Logement de connecteur avec des elements de verrouillage ameliores - Google Patents

Logement de connecteur avec des elements de verrouillage ameliores Download PDF

Info

Publication number
WO1997010627A1
WO1997010627A1 PCT/US1996/014984 US9614984W WO9710627A1 WO 1997010627 A1 WO1997010627 A1 WO 1997010627A1 US 9614984 W US9614984 W US 9614984W WO 9710627 A1 WO9710627 A1 WO 9710627A1
Authority
WO
WIPO (PCT)
Prior art keywords
latch arm
joint
latch
electrical connector
connector
Prior art date
Application number
PCT/US1996/014984
Other languages
English (en)
Other versions
WO1997010627A9 (fr
Inventor
Daines Milfred Self
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
Publication of WO1997010627A1 publication Critical patent/WO1997010627A1/fr
Publication of WO1997010627A9 publication Critical patent/WO1997010627A9/fr

Links

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
    • H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
    • H01R13/627—Snap or like fastening
    • H01R13/6271—Latching means integral with the housing
    • H01R13/6273—Latching means integral with the housing comprising two latching arms

Definitions

  • the invention relates to improved latch members for use with an electrical connector housing.
  • the latch members are configured tc eliminate a hinge having a pivotal axis, thereby minimizing the potential for latch breakage.
  • Housings for certain electrical connectors are molded from dielectric plastic material and are intended to be secured to mating connector housings when the connectors have been moved together in a mated condition, in which the respective arrays of electrical contacts are mated to complete electrical connections.
  • hardware is fastened to the respective housings to secure them together in their mated condition, but it is desirable that the housings have an integral latching means.
  • Integrally molded latch arms are disposed along opposed sides of the housing of one of the connectors and extend forwardly to latchingly engage corresponding latching surfaces of the housing of the other connector, when the connectors are moved together into a mated condition.
  • Latch arms used for securing connectors together are known in U.S. Pat. No. 4,867,700.
  • the latch arms include rearward portions which are deflectable to unlatch the latch arms when it is desired to separate and unmate the connectors, in which case the latch arms can be said to be hingedly joined to the housing and rotates about a central axis along the hinge joint.
  • Such latch arms are subjected to stress and torque during mating and unmating, especially taking into consideration that the hinge joint is molded of plastic material which can commonly lose strength over time when worked and subjected to temperature cycling as well.
  • U.S. Pat. No. 5,382,177 discloses a connector with latch arms which are joined to the housing with flexible hinge joints.
  • the hinge joints are "dogbone” shaped and are configured to properly distribute the stresses associated with the latch arms, such that as forces are applied to the latch arms, concentration of stresses will be avoided on the hinge joints.
  • These latch arms are also subjected to stress and torque during mating and unmating and can, over time, loose strength and break.
  • latch arms which are designed to resist stress and torque and yet be flexible to allow many cycles of deflection of the latch arm during mating and unmating of the connectors.
  • the invention comprises an electrical connector, having a housing with a side surface, a mating face, a rearward face, and contact receiving cavities extending from the rearward face through the mating face to receive contacts therein.
  • a latch arm is disposed along the side surface, the latch arm has a joint securing the latch arm to the side surface.
  • a stress rib extends from a side wall of the joint to the side surface of the housing. Stresses formed during deflection of the latch arm are distributed over the length of the latch arm, through the joint and stress rib.
  • Figure 1 is an isometric view of a connector of the present invention
  • Figure 2 is a side view of the connector
  • Figure 3 is a top view of the connector
  • Figure 4 is a top view of the connector and a mating connector
  • Figure 5 is a similar view to Figure 4 with the connectors mated.
  • a preferred form of the connector assembly in accordance with the invention comprises a plug connector 10.
  • the plug connector 10 comprises a block 12 having a mating face 14 and a rearward face 16.
  • Contact silos 18 extend forwardly from the mating face 14.
  • Contact receiving cavities 20 extend longitudinally through the connector 10 from the rearward face 16 through the contact silos 18.
  • the contact receiving cavities 20 receive electrical contacts (not shown) which can be electrically connected to contacts in a mating connector.
  • the block 12 has upper and lower surfaces 22, 24.
  • the block 12 has side surfaces 23, 25 from which latch arms 26 extend.
  • Each latch arm 26 has a free end 28 with a latch member 30.
  • the latch arm 26 has a joint 34 from which the latch arm 26 extends.
  • the latch arm 26 comprises two separate arms which extend from two separate joints to the free end 28.
  • a groove 32 extends from the joint 34 to the latch member 30 between the separate arms.
  • serrations 36 are serrations 36. The serrations form an engaging surface which allows easy manipulation of the latch arm by the finger of the user.
  • the joint 34 is a basically rectangular body which joins the latch arm 26 with the block 12. Extending rearwardly from each joint is a ramped rib 38.
  • the rib 38 extends downwardly from the side wall 40 of the joint to the side surface 23, 25 of the block 12.
  • the ramped rib is integrally molded with both the joint 34 and the block 12.
  • Each joint has a ramped rib 40 extending rearwardly from the side walls 40.
  • Figures 4 and 5 show the mating of the plug connector 10 with a matable connector 50.
  • the matable connector has latch arms 52 along either side surface 51, each latch arm 52 has a barbed end 54 with a second ramped surface 53 to engage the latch arm 26 on the plug connector.
  • the mating connector 50 has a mating face 58 and a rearward face 60. Contact receiving cavities extend longitudinally from the mating face 58 to the rearward face 60. Contacts are received in the contact receiving cavities to electrically connect with the contacts in the plug connector 10. When the plug connector and the mating connector 50 are mated, the contact silos 18 are received within the contact receiving cavities of the mating connector 50 and the contacts are brought into electrical contact with each other.
  • the ramped surface 31 of the latch member 30 engages the second ramped surface 53 and deflects the latch arms 26, outwardly as is indicated by the arrow shown in Figure 4.
  • latch members 30 are moved beyond the barbed end 54 such that the latch arm 26 resiles to its initial position and the barbed end 54 is positioned within the groove 32.
  • shoulder 44 of the latch arms 26 engages shoulder 56 of latch arms 52, as is shown in Fig. 5, to prevent inadvertent delatching caused by stress or vibration when the connectors are in the mated position.
  • the free end 28 of the latch arm 26 is pushed outwardly away from the matable connector by the thumb and forefinger of the user, see Fig. 5.
  • the serrated section 36 provides a textured surface which is easily engaged with the finger of the user.
  • the deflection of the latch arm 26 is a beam deflection.
  • the stresses from deflection are distributed along the length of the latch arm and through the joint.
  • the ramped rib provides additional distribution of the stresses from beam deflection.
  • the latch arm disclosed in U.S. Pat. No. 5,382,177 has a hinge joint such that the latch arm rotates around a central axis. Over time, the stresses in the hinge joint can cause the hinge joint to become weakened and to fail.
  • the use of a beam deflection rather than rotation about a hinge joint provides better distribution of the stresses and therefore provides a latch arm which can withstand mating and unmating of the connectors for a longer period of time.
  • the joint 34 is subjected to various forces including pull-out forces and displacement forces.
  • the pull-out forces occur when the plug connector 10 is pulled away from the mating connector 50 without disengaging the latch arms. These pull-out forces have an axial component and a rotational component associated therewith.
  • the displacement forces are the forces associated with the rotation of the latch arms from the mating position to the unmating position. Both the pull-out and displacement forces are transmitted to the joint causing the joint to be stressed. As each force is different, the stress distribution of the joint varies for each force. Consequently, the optimum design for the joint must be one which allows for flexibility of the joint and which can accommodate the various stress distributions without failure. For the connector illustrated, this optimum design is described above.

Landscapes

  • Details Of Connecting Devices For Male And Female Coupling (AREA)

Abstract

L'invention concerne un connecteur électrique ayant un logement avec une surface latérale (23, 25). Un bras de verrouillage (26) se trouve disposé le long de la surface latérale et il a un coude (34) fixant le bras de verrouillage sur la surface latérale. Une rainure (32) s'étend depuis le coude jusqu'à l'extrémité libre du bras de verrouillage, pour recevoir un second bras de verrouillage sur le connecteur complémentaire. Une nervure de renforcement (38) s'étend entre la paroi latérale du coude et la surface latérale du logement. Les contraintes qui apparaissent durant la déformation du bras de verrouillage sont réparties sur toute la longueur du bras, grâce au coude et à la nervure de renforcement.
PCT/US1996/014984 1995-09-12 1996-09-12 Logement de connecteur avec des elements de verrouillage ameliores WO1997010627A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US365895P 1995-09-12 1995-09-12
US60/003,658 1995-09-12

Publications (2)

Publication Number Publication Date
WO1997010627A1 true WO1997010627A1 (fr) 1997-03-20
WO1997010627A9 WO1997010627A9 (fr) 1997-05-01

Family

ID=21706940

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1996/014984 WO1997010627A1 (fr) 1995-09-12 1996-09-12 Logement de connecteur avec des elements de verrouillage ameliores

Country Status (1)

Country Link
WO (1) WO1997010627A1 (fr)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013108939A1 (de) * 2013-08-19 2015-02-19 Phoenix Contact Gmbh & Co. Kg Steckverbindergehäuse
USD942400S1 (en) * 2020-09-30 2022-02-01 Molex, Llc Connector
USD942399S1 (en) * 2020-09-30 2022-02-01 Molex, Llc Connector
USD942952S1 (en) * 2020-09-30 2022-02-08 Molex, Llc Connector
USD942953S1 (en) * 2020-09-30 2022-02-08 Molex, Llc Connector
USD1047918S1 (en) 2022-10-28 2024-10-22 Molex, Llc Connector
USD1047919S1 (en) 2022-10-28 2024-10-22 Molex, Llc Connector
USD1070776S1 (en) 2022-10-28 2025-04-15 Molex, Llc Connector
USD1070775S1 (en) 2022-10-28 2025-04-15 Molex, Llc Connector

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0039548A2 (fr) * 1980-05-02 1981-11-11 AMP INCORPORATED (a New Jersey corporation) Assemblage de connecteurs électriques
EP0154412A1 (fr) * 1984-02-09 1985-09-11 LUCAS INDUSTRIES public limited company Connecteurs électriques
US5382177A (en) * 1991-11-21 1995-01-17 The Whitaker Corporation Connector housing with improved latch members

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0039548A2 (fr) * 1980-05-02 1981-11-11 AMP INCORPORATED (a New Jersey corporation) Assemblage de connecteurs électriques
EP0154412A1 (fr) * 1984-02-09 1985-09-11 LUCAS INDUSTRIES public limited company Connecteurs électriques
US5382177A (en) * 1991-11-21 1995-01-17 The Whitaker Corporation Connector housing with improved latch members

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013108939A1 (de) * 2013-08-19 2015-02-19 Phoenix Contact Gmbh & Co. Kg Steckverbindergehäuse
USD942400S1 (en) * 2020-09-30 2022-02-01 Molex, Llc Connector
USD942399S1 (en) * 2020-09-30 2022-02-01 Molex, Llc Connector
USD942952S1 (en) * 2020-09-30 2022-02-08 Molex, Llc Connector
USD942953S1 (en) * 2020-09-30 2022-02-08 Molex, Llc Connector
USD1047918S1 (en) 2022-10-28 2024-10-22 Molex, Llc Connector
USD1047919S1 (en) 2022-10-28 2024-10-22 Molex, Llc Connector
USD1070776S1 (en) 2022-10-28 2025-04-15 Molex, Llc Connector
USD1070775S1 (en) 2022-10-28 2025-04-15 Molex, Llc Connector

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