EP0101419A1 - An electric connector device - Google Patents

An electric connector device Download PDF

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Publication number
EP0101419A1
EP0101419A1 EP83850184A EP83850184A EP0101419A1 EP 0101419 A1 EP0101419 A1 EP 0101419A1 EP 83850184 A EP83850184 A EP 83850184A EP 83850184 A EP83850184 A EP 83850184A EP 0101419 A1 EP0101419 A1 EP 0101419A1
Authority
EP
European Patent Office
Prior art keywords
pin
contact pin
protective sleeve
cable clip
connection region
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Withdrawn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
EP83850184A
Other languages
German (de)
English (en)
French (fr)
Inventor
Göran Lundqvist
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.)
HB Bohus Maskinutveckling
Original Assignee
HB Bohus Maskinutveckling
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 HB Bohus Maskinutveckling filed Critical HB Bohus Maskinutveckling
Publication of EP0101419A1 publication Critical patent/EP0101419A1/en
Withdrawn legal-status Critical Current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
    • 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
    • H01R11/28—End pieces consisting of a ferrule or sleeve
    • 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
    • H01R4/02—Soldered or welded connections
    • 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
    • H01R4/58—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 characterised by the form or material of the contacting members
    • H01R4/64—Connections between or with conductive parts having primarily a non-electric function, e.g. frame, casing, rail

Definitions

  • the present invention relates to an electric connector device comprising a contact pin and a cable clip.
  • the problem behind the invention is to provide a connector device having a contact pin/cable clip which guarantees a good electric contact between the cable clip and the contact pin as well as sufficient strength in the connection region between the clip and the pin.
  • the pin should be mountable in structural members, for instance thin plate sheets, which are to be surface treated, for instance by-aggressive surface treating agents and/or lacquer, after the pin has been mounted.
  • the connector device should be such that manual handling mounting failure sources are eliminated.
  • the mounting should be simple and it should be possible to determine by a simple inspection whether the connection between the cable clip and the pin is correct or not.
  • the connector device has to meet high standards of function as well as mass producion utility.
  • the connector device should be useful - with advantage - as an earthing arrangement of thin plate sheet structural members of for instance motor vehicles, household machines, electric heaters, etc.
  • British patent No. 121 442 330 discloses an arrangement of bendable pins insertable into a cable clip.
  • contact pin is broadened to include also accumulator terminals, for instance
  • British patent No. 1 288 001 discloses a cable clip arranged to be tightened by a locking screw on a conical accumulator terminal.
  • pins require that specific measures are taken, for instance cleaning by a steel brush, after the sheet having the pin mounted thereon has been surface treated. Such a cleaning is not reliable enough to guarantee a long-term well operating earth connection. It is not possible to mount the known pins after a surface treating of the lacquering type, because the lacquer is destroyed and/or the mounting causes regions of corrosion.
  • the clamping force of the screw union is small implying that the screw gets untightened.
  • Lacquer of the screw union "sets" and contributes to the untightening of the screw union.
  • the object of the invention is to obviate said drawback(s) and offer a more advantageous alternative.
  • the invention provides an electric connector device comprising a contact pin and a cable clip for connection thereto.
  • the device is characterized in that the contact pin is provided with a protective sleeve arranged for being removed after the pin has been mounted to a surrounding structural member, and in that the protective sleeve is arranged to cover at least an electric connection region of the pin.
  • connection region comprises a conical region.
  • the conical region is arranged to form a press union with the cable clip arranged for co-operation with the contact pin.
  • the dimension relations preferably are such that the yield limit of the material of the collared part is passed when said press union is obtained.
  • the pin preferably has a portion to be welded to the structural member, consisting for instance of thin plate. Other fastening methods are not excluded.
  • the contact pin is arranged to form an earthing pin.
  • the protective sleeve consists of metal meeting the required protection standards but also allowing a rational demounting. Plastics material withstanding for instance heat may also be used as material of the protective sleeve.
  • the protective sleeve is arranged such that it prevents for instance surface treating agents, including lacquer for said structural member, from affecting the electric connection region of the contact pin.
  • the contact pin denoted by 10 in Figure 1 consists of metal, for instance stainless steel, and has an upper truncated conical envelope surface 11.
  • the envelope surface region of the contact pin continues in a generally cylindric attachment portion via a downwards conical portion 12.
  • the cylindrical portion is arranged for being welded to a thin plate structural member 14 and therefore said portion is provided with a tip 16 for initiating the welding arc.
  • a protective sleeve 15 consisting of a relatively soft metal, for example copper, in the embodiment shown.
  • the fit between the sleeve 15 and the envelope surface 11 is made sufficient from a protective point of view with regard to aggressive, from an electric point of view detrimental surface treating agents, but such that simple demounting by axial removal is possible.
  • the envelope surface 11 is shown uncovered, basically after two consecutive steps, namely welding of the contact pin 10 to the sheet 14 and lacquering of the structural member (generally involving a preceding further - surface treatment) by a lacquer layer 17.
  • a portion 18 of the lacquer layer remains on the tip of the pin 10 after the protective sleeve has been drawn off.
  • a rational drawing off is carried out by a puller.
  • the welding is made for instance by an automatically loaded welding gun, where any contact pins for some reason lacking protective sleeves are discarded without action from the operator, implying that an otherwise doubtful source of failure is eliminated.
  • the lacquer free portion 11 of the contact pin in Figure 2 forms the electric connection region.
  • a collared cable clip 19 having a collar 20 dimensioned for press fit relative the pin surface 11 is shown in Figure 4.
  • the material of the cable clip preferably is soft, for instance copper, brass, and the dimension of the collar and the pin surface 11 are such that the yield limit of the material of the collar is passed, at least partially, when the collar is mounted onto the pin.
  • FIG. 3 there is shown a modified contact pin 10 provided with a protective sleeve 15.
  • the transition region 12 is here extended and cylindric.
  • the electric contact surface may comprise also the top surface of the contact pin, which requires a "cup"-shaped protective sleeve.

Landscapes

  • Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)
  • Multi-Conductor Connections (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)
  • Connector Housings Or Holding Contact Members (AREA)
EP83850184A 1982-07-09 1983-06-29 An electric connector device Withdrawn EP0101419A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE8204251 1982-07-09
SE8204251A SE431699B (sv) 1982-07-09 1982-07-09 Elektrisk kopplingsanordning 0

Publications (1)

Publication Number Publication Date
EP0101419A1 true EP0101419A1 (en) 1984-02-22

Family

ID=20347342

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83850184A Withdrawn EP0101419A1 (en) 1982-07-09 1983-06-29 An electric connector device

Country Status (3)

Country Link
EP (1) EP0101419A1 (sv)
JP (1) JPS5978474A (sv)
SE (1) SE431699B (sv)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE763154A (fr) * 1970-02-19 1971-07-16 Amp Inc Cosse pour borne de batterie d'accumulateurs
GB1381250A (en) * 1972-08-07 1975-01-22 Fulmen In situ production of accumulator cell terminals
DE2359429A1 (de) * 1973-08-29 1975-06-05 Multi Contact Ag Elektrische anschlusseinrichtung zum anschluss eines elektrischen leiters an einen akkumulator

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE763154A (fr) * 1970-02-19 1971-07-16 Amp Inc Cosse pour borne de batterie d'accumulateurs
GB1381250A (en) * 1972-08-07 1975-01-22 Fulmen In situ production of accumulator cell terminals
DE2359429A1 (de) * 1973-08-29 1975-06-05 Multi Contact Ag Elektrische anschlusseinrichtung zum anschluss eines elektrischen leiters an einen akkumulator

Also Published As

Publication number Publication date
SE431699B (sv) 1984-02-20
JPS5978474A (ja) 1984-05-07
SE8204251L (sv) 1984-01-10
SE8204251D0 (sv) 1982-07-09

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Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): BE DE FR GB IT NL

17P Request for examination filed

Effective date: 19840723

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19851210

RIN1 Information on inventor provided before grant (corrected)

Inventor name: LUNDQVIST, GOERAN