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EP2779318A1 - Procédé d'assemblage d'un connecteur électrique et connecteur électrique - Google Patents

Procédé d'assemblage d'un connecteur électrique et connecteur électrique Download PDF

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Publication number
EP2779318A1
EP2779318A1 EP13158658.8A EP13158658A EP2779318A1 EP 2779318 A1 EP2779318 A1 EP 2779318A1 EP 13158658 A EP13158658 A EP 13158658A EP 2779318 A1 EP2779318 A1 EP 2779318A1
Authority
EP
European Patent Office
Prior art keywords
housing
terminal
channel
wire
electrical connector
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Withdrawn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
EP13158658.8A
Other languages
German (de)
English (en)
Inventor
Vedran Mahovic
Tvrtko Rebic
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.)
Yazaki Europe Ltd
Original Assignee
Yazaki Europe 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 Yazaki Europe Ltd filed Critical Yazaki Europe Ltd
Priority to EP13158658.8A priority Critical patent/EP2779318A1/fr
Publication of EP2779318A1 publication Critical patent/EP2779318A1/fr
Withdrawn legal-status Critical Current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
    • H01R13/40—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
    • 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
    • H01R4/10—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 effected solely by twisting, wrapping, bending, crimping, or other permanent deformation
    • H01R4/18—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 effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping
    • H01R4/183—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 effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping for cylindrical elongated bodies, e.g. cables having circular cross-section

Definitions

  • the invention relates to a method for assembling an electrical connector and to such an electrical connector.
  • the invention relates particularly to a high-speed data connector preferably for use in the automotive sector.
  • the requirements for high-speed data connection systems are increasing greatly. These requirements are being driven by the growth and complexity of telematic and information applications being introduced, especially in the automotive sector.
  • the impedance describing the current/voltage ratio, along the entire signal propagation direction shall be constant. Due to mechanic reasons usually the impedance of a connector is different from the impedance of a cable. The impedance is largely defined by the connector geometry, the distance between the contact terminals and the dielectric constant. In order to achieve a constant impedance in the cable the wires of the cable are twisted inside an outer covering of the cable. However, the wires are untwisted within the connector. This can result in a change of the characteristic impedance in the region of the connector. If the characteristic impedance of the transmission system is not uniform, a loss in adaptation is observed. In particular, this problem occurs when high frequency currents are conveyed. Losses in the signals can occur by reflection.
  • connectors having an insulator with radially open channels for inserting terminals in radial direction are disclosed in EP 0 444 478 A1 and EP 1 825 575 B1 . Both publications disclose connectors having a body in which the insulator together with the terminals is inserted.
  • Object of the present invention is to provide a method for assembling a connector and such a connector having less parts and enabling an easy method for assembling.
  • the invention is directed to a method for assembling an electrical connector wherein the connector comprises a housing and at least one receiving arrangement comprising a channel extending in the housing parallel to a longitudinal axis, a wire, having a conductor and an insulation, and a terminal.
  • the receiving arrangement is provided in the housing.
  • the connector does not have separate elements such as a central insulator being mounted to a sleeve-like outer body. Since the channels extend in an axial direction through the housing the terminals have to be inserted in axial direction.
  • the channels are radially closed and just have an opening at a front end and an opening at a back end of the housing for inserting the a terminal and a wire, respectively.
  • the terminal has to be inserted into the channel in an axial direction from the front side of the housing until a stop face of the terminal comes into supporting contact to a supporting face of the housing.
  • the wires have to be inserted from the back side of the housing in an axial direction into the channels. This results to the requirement that before the terminal be contacted to the conductor of the wire, the wire has to be passed through the channel of the housing. Afterwards, the terminal can be connected to the conductor of the wire.
  • the wire is passed through the channel with a front side of the wire being completely insulated, i.e.
  • the insulation of the front end of the wire is not stripped off the conductor. This makes the step of inserting the wire into the channel easier.
  • the insulation can be stripped off the conductor after the wire has been pushed and passed through the channel.
  • the insulation of the wire at the front end can be stripped-off prior pushing them through the channel.
  • Inserting the terminal means that at least a part of the terminal is received within the channel.
  • the terminal partly projects out of the channel.
  • the entire terminal can be received within the channel without a part of the terminal projecting out of the channel.
  • the wire, inserted into the channel is received with a front end within the channel while a back end of the wire leads out of the channel at the back side of the housing.
  • a front cover In order to protect the terminal against outer influences avoiding for example a deformation of the terminal, a front cover can be provided which is mounted to a front side of the housing and which covers the terminal and the channel. The front cover additionally makes sure that the terminals cannot moved out of the channels. The front cover is a stop against movement in a direction opposite to the insertion direction of the terminals. In order to enable the insertion of a counter-terminal into the housing to make contact with the terminal the front cover has an opening in alignment to the channel through which the counter-terminal can be passed through. The opening being part of the receiving arrangement.
  • the terminal is connected to the conductor by crimping.
  • the terminal can be soldered or connected to the conductor by any other well known method.
  • the electrical connector comprises connection means on the housing for connecting the housing to a counter-connector.
  • the means can be for instance locking arms projecting from an outer circumferential surface of the housing and which can be locked to locking means of a counter-connector, such like outer projections or notches of the counter-connector.
  • the at least one receiving arrangement is arranged in a channel portion of the housing wherein the housing comprising the channel portion and the means for connecting the housing to a counter-connector is formed integrally in one piece. This reduces the number of parts of the electrical connector resulting in a simpler design and in a less complex assembly.
  • a front cover is mounted to the housing at the front side of the housing and the receiving arrangement comprises an opening in the front cover in alignment with the channel.
  • the opening enables a counter-terminal to be inserted through the opening reaching into the housing in order to come into electrical contact with the terminal.
  • the wire can be inserted into the channel from a back side of the housing.
  • the terminal can be inserted into the channel from a front side of the housing, i.e. from an opposite side than the wire.
  • the terminal may have a contact portion to be mated with a counter-terminal for electrical connection and a connection portion to be connected to the conductor of the wire.
  • the conductor of the wire can be crimped, soldered or in other well known manner be connected to the connection portion.
  • the terminal may have at least one projection, preferably in form of an annular flange, defining the stop face.
  • the projection is arranged on an outer surface of the terminal projecting in a substantial radial direction relative to a longitudinal axis of the terminal.
  • the contact portion and the connection portion may be arranged on opposite sides of the at least one projection.
  • the channel may have a radial step defining the support face. This radial step can be formed in the transition between two channel portions having different dimensions in a radial direction.
  • the channel may be circular in cross-section. The step may extend partially or entirely around a circumference of the channel and around the terminal.
  • the terminal may project out of the channel on the front side of the housing.
  • the front cover may have a receiving chamber receiving and radially supporting the terminal, in particular, the part of the terminal that projects out of the channel of the housing.
  • the receiving chamber and the channel are aligned to each other and are receiving the terminal together.
  • a plurality of receiving arrangements is provided, for example four receiving arrangements.
  • the receiving arrangements are further preferably arranged, viewed in a cross-section perpendicular to the longitudinal axis, on a circle and being distributed equidistant.
  • the connector 1 comprises a one-piece housing 2 with a front side 3 and a back side 4. At the front side 3 the housing 2 has a front portion 5. It has a substantially cylindrical shape.
  • the front portion 5 has an elastic locking arm 6 on its outer circumference.
  • the front portion 5 is adapted to be inserted into a receptacle of a counter-connector, e.g. in the form of a socket (not shown).
  • the locking arm 6 can be locked to the counter-connector by a cam 7 on the outside of the locking arm 6, wherein the cam 7 can be locked into a locking notch of the counter-connector.
  • the front portion 6 has a cavity 8 open to the front side 3 of the housing 2 and being centered relative to a longitudinal axis L of the housing 2.
  • the cavity 8 receives a front cover 9 which has a cavity 10 open to the front side 3 of the housing 2 and being centered relative to the longitudinal axis L.
  • the cavity 10 of the front cover 9 can receive a portion of the counter-connector having counter-terminals.
  • the front cover 9 is provided with four openings 11 each for passing through one counter-terminal.
  • a cable 12 is provided comprising four wires 13 being twisted.
  • Each wire 13 is inserted from the back side 4 of the housing 2 into channels 14 of the housing 2.
  • the channels 14 are located in a channel portion 26 of the housing 2.
  • the channels 14 penetrate the housing 2 from the back side 4 to the front side 3 and are open towards the cavity 8 of the front portion 5 of the housing 2.
  • the connector 1 comprises four terminals 15 inserted from the front side 3 of the housing 2 into the channels 14 and being connected to conductors 27 of the wires 13.
  • Each channel receives, at least partly, one terminal and one wire being connected to said terminal.
  • the terminals 15 are partly inserted into the channels 14 and project over a bottom face 18, which is perpendicular to the longitudinal axis L, of the cavity 8 of the front portion 5 into the cavity 8.
  • the front cover 9 has a covering portion 16 with receiving chambers 17 for each of the terminals 15 so that the parts of the terminals 15 which project out of the channels 14 and into the cavity 8 are received within the receiving chambers 17 of the front cover 9.
  • Each of the openings 11 is aligned with one of the channels 14 so that a counter-terminal can be inserted into the opening 11 into the receiving chamber 17 in order to get into electrical contact with the terminals 15.
  • the channels 14 each have a first part 19 open to the front side 3 of the housing 2 and a second part 20 open to the back side 4 of the housing 2.
  • the first part 19 of the channels 14 has a greater diameter than the second part 20 so that between the first part 19 and the second part 20 the step is formed defining a support face 21 facing in the direction of the front side 3.
  • the terminals 15 each have a flange 22 having a ring-shape outer circumference.
  • the flange 22 defining a stop face 23 facing the support face 21 of the housing 2. In the position as shown in Figure 2 the stop face 23 of the terminals 15 is in supporting contact to the support face 21 of the channels 14 so that the terminals 15 cannot be pushed further into the channel 14 from the front side 3.
  • the terminal 15 has a connection portion 24 for connecting the terminal 15 to a conductor 27 of one of the wires 13.
  • the connection portion 24 is formed as a crimping portion for crimping the terminal 15 to the conductor 27.
  • the connection portion 24 can also be a portion for soldering the terminal 15 to the conductor 27 or to connect the terminal 15 in another well known manner to the conductor 27.
  • the terminal 15 has a contact portion 25 in the form of a hollow tube. At the end of the terminal 15 directed towards the front side 3 spring arms 28 are provided. A counter-terminal of the socket connector can be inserted into the hollow terminal 15 from a front side and between the spring arms 28 wherein the spring arms 28 are clamping the counter-terminal.
  • the terminal further has a flange 22 formed into the tube like portion of the terminal 15.
  • the flange 22 provides for a very robust solution for locking the terminal 15 within the channel 14, by supporting the stop face 23 of the flange 22 against the support face 21 of the housing.
  • the connection portion 24 and the contact portion 25 are arranged on opposite sides of the flange 22.
  • the housing 2 has a one-piece design, that means the channel portion 26 of the housing 2 is integral with the locking arm 6, which locking arm 6 is a means for connecting the housing 2 to a counter-connector (socket connector).
  • the housing 2 is molded from a resin material in one-piece so that the connector 1 has a low number of components and can be produced less expansive. In addition, there is no need for assembling a high number of components.
  • Figures 5 to 11 show the method for assembling the electrical connector.
  • a first step the single wires 13 are pushed through the channels 14 from the back side 4 of the housing 2 until they project out of the channels 14 on the front side 3 of the housing 2.
  • the wires 13 each have a central conductor 27 and an insulation 29 surrounding the conductor 27.
  • the single wires 13 are pushed through the channels 14 with the insulation covering the conductor 27 on a front end 30 of the wire 13 which projects out of the channels 14.
  • the insulation is being stripped off the conductors 27 at the front ends 30 of the wires 13 ( Figure 7 ).
  • the terminals 15 are connected with the conductors 27 of the wires 13, for instance by crimping ( Figure 8 ). Afterwards, the wires 13 are pulled back into the channels 14 until the stop faces 23 of the terminals 15 come into contact to the support faces 21 of the channels 14 ( Figure 9 ). When all of the wires 13 have been pulled back the front cover 9 is mounted into the cavity 8 of the front portion 5 of the housing 2 ( Figure 10 ).
  • connection portion At the end the wires 13 are twisted closely together. For cost optimization a shielding around the twisted wires can be omitted.

Landscapes

  • Connector Housings Or Holding Contact Members (AREA)
EP13158658.8A 2013-03-11 2013-03-11 Procédé d'assemblage d'un connecteur électrique et connecteur électrique Withdrawn EP2779318A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP13158658.8A EP2779318A1 (fr) 2013-03-11 2013-03-11 Procédé d'assemblage d'un connecteur électrique et connecteur électrique

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP13158658.8A EP2779318A1 (fr) 2013-03-11 2013-03-11 Procédé d'assemblage d'un connecteur électrique et connecteur électrique

Publications (1)

Publication Number Publication Date
EP2779318A1 true EP2779318A1 (fr) 2014-09-17

Family

ID=47844205

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13158658.8A Withdrawn EP2779318A1 (fr) 2013-03-11 2013-03-11 Procédé d'assemblage d'un connecteur électrique et connecteur électrique

Country Status (1)

Country Link
EP (1) EP2779318A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4588242A (en) * 1983-07-06 1986-05-13 Amp Incorporated Sealed electrical connector
US4895534A (en) * 1987-12-09 1990-01-23 Amp Incorporated Pull to seat connector
EP0444478A1 (fr) 1990-03-01 1991-09-04 Gebhard, Dietrich Porte-contact pour prise de courant ou connecteur pour le raccordement de remorques de véhicules
DE10041837A1 (de) * 1999-08-26 2001-04-05 Yazaki Corp Wasserdichter Stecker
EP1193812B1 (fr) 2000-09-27 2006-03-22 Souriau Connecteur muni de contacts montés dans un isolant adapté
EP1825575B1 (fr) 2004-12-13 2008-04-23 Rosenberger Hochfrequenztechnik GmbH & Co. KG Element isolant destine a un connecteur a fiches hf, notamment un connecteur a fiches fakra

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4588242A (en) * 1983-07-06 1986-05-13 Amp Incorporated Sealed electrical connector
US4895534A (en) * 1987-12-09 1990-01-23 Amp Incorporated Pull to seat connector
EP0444478A1 (fr) 1990-03-01 1991-09-04 Gebhard, Dietrich Porte-contact pour prise de courant ou connecteur pour le raccordement de remorques de véhicules
DE10041837A1 (de) * 1999-08-26 2001-04-05 Yazaki Corp Wasserdichter Stecker
EP1193812B1 (fr) 2000-09-27 2006-03-22 Souriau Connecteur muni de contacts montés dans un isolant adapté
EP1825575B1 (fr) 2004-12-13 2008-04-23 Rosenberger Hochfrequenztechnik GmbH & Co. KG Element isolant destine a un connecteur a fiches hf, notamment un connecteur a fiches fakra

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