EP0234639A1 - Connecteur à déplacement d'isolant - Google Patents

Connecteur à déplacement d'isolant Download PDF

Info

Publication number
EP0234639A1
EP0234639A1 EP87200208A EP87200208A EP0234639A1 EP 0234639 A1 EP0234639 A1 EP 0234639A1 EP 87200208 A EP87200208 A EP 87200208A EP 87200208 A EP87200208 A EP 87200208A EP 0234639 A1 EP0234639 A1 EP 0234639A1
Authority
EP
European Patent Office
Prior art keywords
housing
cable
push member
connection terminal
tapered opening
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.)
Granted
Application number
EP87200208A
Other languages
German (de)
English (en)
Other versions
EP0234639B1 (fr
Inventor
Haruo Sakamoto
Nobuei Takai
Kouzou C/O Nec Corporation Uekido
Michiaki C/O Nec Corporation Nishiyama
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.)
NEC Corp
DuPont Japan Ltd
Original Assignee
NEC Corp
DuPont Japan 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 NEC Corp, DuPont Japan Ltd filed Critical NEC Corp
Publication of EP0234639A1 publication Critical patent/EP0234639A1/fr
Application granted granted Critical
Publication of EP0234639B1 publication Critical patent/EP0234639B1/fr
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
    • H01R11/00—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts
    • H01R11/11—End pieces or tapping pieces for wires, supported by the wire and for facilitating electrical connection to some other wire, terminal or conductive member
    • H01R11/20—End pieces terminating in a needle point or analogous contact for penetrating insulation or cable strands
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/24—Connections using contact members penetrating or cutting insulation or cable strands
    • H01R4/2416—Connections using contact members penetrating or cutting insulation or cable strands the contact members having insulation-cutting edges, e.g. of tuning fork type
    • H01R4/2445—Connections using contact members penetrating or cutting insulation or cable strands the contact members having insulation-cutting edges, e.g. of tuning fork type the contact members having additional means acting on the insulation or the wire, e.g. additional insulation penetrating means, strain relief means or wire cutting knives
    • H01R4/2462—Connections using contact members penetrating or cutting insulation or cable strands the contact members having insulation-cutting edges, e.g. of tuning fork type the contact members having additional means acting on the insulation or the wire, e.g. additional insulation penetrating means, strain relief means or wire cutting knives the contact members being in a slotted bent configuration, e.g. slotted bight

Definitions

  • This invention relates to an electrical connector and, particularly, to an electrical connector includ­ing an insulation-displacement connector which displaces an insulating sheath covering on the associated conduc­tor and pinches the conductor in the slot of the con­tact, to assure an electrical connection between the contact and the conductor.
  • FIG. 1 An example of a conventional insulation-­displacement connector is shown in Fig. 1, and includes housing 100 with connection terminal 200 therewithin. At one end of connection terminal 200, insulation-­displacement contact section 210 is formed, and is brought into contact with a conductor in a cable (not shown). At the other end of connection terminal 200, receptacle section 220 is formed, and is connected to a plug pin (not shown). At insulation-displacement con­tact section 210 of connection terminal 200 tapered opening 211 and slot 212 communicating with opening are formed, as is shown in Fig. 2.
  • Push member 300 made of an insulation material is snap-fitted into housing 100 such that projections 311, 312, formed on the side sur­faces of push member 300, engage first grooves 110, shown in Fig. 3A, which are formed on the inner surfaces of the housing.
  • Cable 400 is inserted, with cable insulation 410, through insertion hole 500 located between recess 320 of push member 300 and tapered opening 211 of terminal 200, as is shown in Fig. 3A.
  • a suitable tool such as a pair of pliers
  • the cable insulation is displaced, so that conductor 420 of the cable is exposed and pinched in slot 212 of contact section 210, as is shown in Fig. 3B.
  • projections 311, 312 of push member 300 abut against second grooves 120, as is shown in Fig. 3B.
  • cable 400 is fixedly connected to connection terminal 200, via the exposed conductor 420.
  • One object of the present invention is to provide an insulation-displacement connector which is markedly improved in relation to a conventional insulation-­displacement connector.
  • Another object of the present invention is to pro­vide an insulation-displacement connector which, even if the cable is thin, assures a positive connection to a cable conductor, without the risk of the cable inadver­tently slipping or dropping off the insertion hole.
  • an insulation-­displacement connector which is adapted to be connected to a cable having a conductor with an insulation layer covering the conductor, comprising:
  • the push member is inserted into the housing from the open top of the housing.
  • the member can push the cable, which is placed over the tapered opening of the connection terminal, so that the cable is pushed into the slot of the connection terminal to expose the con­ductor for connection thereto.
  • the housing includes:
  • the cable is placed over the tapered opening of the connection terminal.
  • the push member is pushed down over the cable so that the projections of the push member may be moved along the guide grooves.
  • the cable is forced into the tapered opening of the connection ter­minal and is held there by the push member.
  • the push member is further pushed with extra force, so that the cable is pushed into the slot of the connection ter­minal and the insulation layer of the cable is displaced to permit the exposed conductor to be connected to the connection terminal.
  • connection terminal The cable is temporarily held at the tapered open­ing of the connection terminal before it can be further pushed into the slot. This prevents the cable from inadvertently slipping or dropping off a connection ter­minal due to an impact.
  • the push member is preferably made of an elastic insulation material, such as a plastic type, so that the pair of legs of the push member can be elastically deformed toward and away from each other.
  • the projections of the legs may effectively be sharp-tipped in order to properly engage with the minute grooves which are formed as a knurled portion on the inner surfaces of the side wall of the housing.
  • Figs. 4 and 5 show an insulation-displacement con­nector according to one embodiment of the present inven­tion.
  • the connector includes housing 10, connection terminals 20 located within the housing and push member 30 to be inserted into the housing through the open top of the housing.
  • Inverted U-shaped recess 32 is formed on front surface 31 of push member 30.
  • U-shaped recess 32 is so formed that its center aligns with tapered opening 21 of connection terminal 20.
  • Projections 33, 34 are formed on either side of push member 30 such that they can engage with first engaging grooves 11 formed on the inner surface of the side walls 101 of housing 10, with insertion hole 50 defined between tapered opening 21 of connection terminal 20 and U-shaped recess 32 of push member 30.
  • the size of insertion hole 50 is selected to allow the ready insertion of not only a thin cable but also a thick one.
  • first grooves 11 of the housing Formed below first grooves 11 of the housing are guide grooves 12 which guide projections 33, 34. Guide grooves 12 allow the push member to be moved within a range of the width of the guide groove, when it is forced downward and its projections move beyond first engaging grooves 11.
  • Push member 30 has a pair of legs 35, 36 with U-­shaped recess 32 defined therebetween.
  • the push member is preferably formed of plastic material so that the pair of legs can elastically deform inwardly or out­wardly.
  • the resultant push member allows its projec­tions 33, 34 to be effectively snap-fitted into first grooves 11 and then into guide grooves 12 beyond the first grooves. With projections 33, 34 located in guide grooves 12, they are pushed firmly against the inner surface of guide grooves 12, by the elastic force of leg sections 35, 36, to allow push member 30 to be held in any desired position.
  • Second engaging grooves 13 are formed adjacent to guide grooves 12, and are used to hold the cable in place, as is set forth below.
  • the first grooves, second grooves and guide grooves extend in direction perpendicu­lar to that in which push member is pushed into the housing.
  • push member 30 is so set that its projec­tions 33, 34 fit into first grooves 11, as is shown in Fig. 4.
  • cable 40 is inserted into insertion hole 50 and placed on tapered opening 21.
  • Push member 30 is pushed, for example, by hand, into guide grooves 12, as indicated by I in Fig. 6, with its projections clear of the first engaging groove, so that cable 40 is compressed over tapered opening 21 of connection terminal 20 and stopped at that position. Since projections 33, 34 abut against the inner surface of guide grooves 12, with a greater frictional force, there is no risk, even if the pushing force (such as hand grip force) is released from push member 30, that the push member will slip upwardly due to the elastic recovery force exerted by insulation layer 41.
  • the pushing force such as hand grip force
  • push member 30 With cable 40 so held, push member 30 is forcibly pushed by, for example, a pair of pliers, in the direc­tion indicated by arrow P so that, as indicated by II in Fig. 6, projections 33, 34 snap-fit into second en­gaging grooves 13, to allow conductor 42 to be pinched in contact with slot 22 of connection terminal 20, with insulation layer 41 displaced.
  • the cable Before this step, the cable is already in contact with push member 30 and, for this reason, the cable will assuredly be guided into the slot of connection terminal 20, by the push member.
  • Fig. 7 shows an insulation-displacement connector according another embodiment of this invention.
  • a number of minute grooves 14a, 14b, ... are formed, as a knurled portion, over a range of the width of guide grooves 12.
  • Sharp-tipped projections 33, 34 may effec­tively be formed on push member 30 so as to allow them to be hooked onto the respective minute grooves.

Landscapes

  • Connections By Means Of Piercing Elements, Nuts, Or Screws (AREA)
  • Multi-Conductor Connections (AREA)
  • Connector Housings Or Holding Contact Members (AREA)
EP87200208A 1986-02-14 1987-02-11 Connecteur à déplacement d'isolant Expired - Lifetime EP0234639B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP1986019970U JPS62131368U (fr) 1986-02-14 1986-02-14
JP19970/86U 1986-02-14

Publications (2)

Publication Number Publication Date
EP0234639A1 true EP0234639A1 (fr) 1987-09-02
EP0234639B1 EP0234639B1 (fr) 1994-10-26

Family

ID=12014051

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87200208A Expired - Lifetime EP0234639B1 (fr) 1986-02-14 1987-02-11 Connecteur à déplacement d'isolant

Country Status (4)

Country Link
EP (1) EP0234639B1 (fr)
JP (1) JPS62131368U (fr)
KR (1) KR920000714B1 (fr)
DE (1) DE3750678T2 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2691846A1 (fr) * 1992-05-26 1993-12-03 Nozick Jacques Prise de courant électrique à contact auto-dénudant.
EP0615306A2 (fr) * 1993-03-11 1994-09-14 Molex Incorporated Connecteur électrique collectif
WO1994024727A1 (fr) * 1993-04-13 1994-10-27 Siemens Aktiengesellschaft Actionneurs ou detecteurs a raccorder a une ligne de bus
WO1994024725A1 (fr) * 1993-04-14 1994-10-27 Siemens Aktiengesellschaft Module pour raccorder des actionneurs et/ou des detecteurs
WO1996017406A1 (fr) * 1994-11-30 1996-06-06 Siemens Aktiengesellschaft Distributeur de potentiel electrique avec moyens de raccordement autodenudants
EP2025449A1 (fr) * 2007-08-04 2009-02-18 Mori Seiki Co.,Ltd. Machine outil dotée d'un changeur d'outil automatique
US9504167B2 (en) 2014-04-24 2016-11-22 Jozsef Laszlo BARAN Method of producing a cable connector device with blade

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2135578A1 (fr) * 1993-11-17 1995-05-18 Julio F. Rodrigues Connecteur electrique avec bloc d'ancrage du conducteur

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT312726B (de) * 1970-11-27 1974-01-10 Assmann Geb Lötfreier Drahtverbinder
DE2631094A1 (de) * 1975-07-22 1977-02-10 Bicc Ltd Verbindungsklemme fuer elektrische leiter
DE3009675A1 (de) * 1979-03-12 1980-09-25 Minnesota Mining & Mfg Drahtabschneidender elektrischer verbinder

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS603743B2 (ja) * 1980-07-05 1985-01-30 モレックス・インコ−ポレ−テッド リボンケ−ブル用電気コネクタ−

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT312726B (de) * 1970-11-27 1974-01-10 Assmann Geb Lötfreier Drahtverbinder
DE2631094A1 (de) * 1975-07-22 1977-02-10 Bicc Ltd Verbindungsklemme fuer elektrische leiter
DE3009675A1 (de) * 1979-03-12 1980-09-25 Minnesota Mining & Mfg Drahtabschneidender elektrischer verbinder

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2691846A1 (fr) * 1992-05-26 1993-12-03 Nozick Jacques Prise de courant électrique à contact auto-dénudant.
EP0615306A2 (fr) * 1993-03-11 1994-09-14 Molex Incorporated Connecteur électrique collectif
EP0615306A3 (fr) * 1993-03-11 1995-03-29 Molex Inc Connecteur électrique collectif.
WO1994024727A1 (fr) * 1993-04-13 1994-10-27 Siemens Aktiengesellschaft Actionneurs ou detecteurs a raccorder a une ligne de bus
WO1994024725A1 (fr) * 1993-04-14 1994-10-27 Siemens Aktiengesellschaft Module pour raccorder des actionneurs et/ou des detecteurs
US5722852A (en) * 1993-04-14 1998-03-03 Siemens Aktiengesellschaft Module for the connection of actuator and/or sensors
WO1996017406A1 (fr) * 1994-11-30 1996-06-06 Siemens Aktiengesellschaft Distributeur de potentiel electrique avec moyens de raccordement autodenudants
EP2025449A1 (fr) * 2007-08-04 2009-02-18 Mori Seiki Co.,Ltd. Machine outil dotée d'un changeur d'outil automatique
US8114000B2 (en) 2007-08-04 2012-02-14 Mori Seiki Co., Ltd. Machine tool with automatic tool changer
US9504167B2 (en) 2014-04-24 2016-11-22 Jozsef Laszlo BARAN Method of producing a cable connector device with blade

Also Published As

Publication number Publication date
EP0234639B1 (fr) 1994-10-26
DE3750678D1 (de) 1994-12-01
KR870008410A (ko) 1987-09-26
KR920000714B1 (ko) 1992-01-20
DE3750678T2 (de) 1995-06-01
JPS62131368U (fr) 1987-08-19

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