EP0054123B1 - Borne de contact électrique à ressort - Google Patents

Borne de contact électrique à ressort Download PDF

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Publication number
EP0054123B1
EP0054123B1 EP81108362A EP81108362A EP0054123B1 EP 0054123 B1 EP0054123 B1 EP 0054123B1 EP 81108362 A EP81108362 A EP 81108362A EP 81108362 A EP81108362 A EP 81108362A EP 0054123 B1 EP0054123 B1 EP 0054123B1
Authority
EP
European Patent Office
Prior art keywords
contact element
contact
receiving
connecting conductor
bush
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
EP81108362A
Other languages
German (de)
English (en)
Other versions
EP0054123A1 (fr
Inventor
Jacques Kunz
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.)
Staeubli Electrical Connectors AG
Original Assignee
Multi Contact AG
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 Multi Contact AG filed Critical Multi Contact AG
Priority to AT81108362T priority Critical patent/ATE14642T1/de
Publication of EP0054123A1 publication Critical patent/EP0054123A1/fr
Application granted granted Critical
Publication of EP0054123B1 publication Critical patent/EP0054123B1/fr
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
    • H01R24/00—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure
    • H01R24/20—Coupling parts carrying sockets, clips or analogous contacts and secured only to wire or cable
    • 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
    • H01R13/44—Means for preventing access to live contacts
    • 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
    • H01R13/46—Bases; Cases
    • H01R13/53—Bases or cases for heavy duty; Bases or cases for high voltage with means for preventing corona or arcing
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R2101/00—One pole
    • 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
    • H01R4/28—Clamped connections, spring connections
    • H01R4/48—Clamped connections, spring connections utilising a spring, clip, or other resilient member
    • 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
    • H01R4/70—Insulation of connections

Definitions

  • the invention relates to an electrical spring clip with an elongated, substantially cylindrical contact element which has a radial opening for receiving a first connection conductor and a socket-shaped extension on the outside insulated from contact with a central bore for receiving a second connection conductor, a provided on the contact element in a longitudinally displaceable manner, which is pressed out by spring tension from the receiving position for the first connecting conductor and can be transferred against this spring tension into the receiving position and which is made of insulating material and is provided with a sleeve-shaped pressing element, the lower part of the contact element at least in the receiving area of the first connecting conductor and its upper part in the area of the socket-shaped extension to protect against contact.
  • spring terminals are also referred to as “pole terminals” and are widely used for the construction of experimental, but also of permanently installed circuits, or of measuring circuits in the low and medium voltage range.
  • Spring or pole terminals of the aforementioned type are easy and convenient to use because the connecting conductor, after the pressing element has been raised, can only be inserted into the contact recess, generally a transverse bore in a contact pin or the like, whereupon the locking and contacting occurs simply by releasing the pressing element .
  • the problem with these contact terminals is securing the user against contact with live conductors, particularly when the contact element is raised, because in the usual designs in this state the contact recess and adjacent areas of the contact element are exposed.
  • contact or pole terminals with an additional socket part for connecting individual plugs are known.
  • the clamping part there does not have a displaceable pressure element which is under spring pressure, but rather a union nut which can be moved by hand between an open position and a pressure position and whose bore in the outer region is designed as a socket contact element.
  • These designs do not correspond to the type of spring clips mentioned at the beginning, and they lack the convenient and simple handling for connecting and disconnecting the conductor. With regard to protection against accidental contact, there are the same disadvantages as with the simple spring clips mentioned.
  • the object of the invention is to provide a spring clip which is characterized by convenient handling with flawless contact protection and has a socket part included in this contact protection for the connection of a second conductor.
  • This object of the invention in a spring clip of the type mentioned is achieved by the features of the characterizing part of claim 1.
  • the design according to the invention results in an improved, so to speak "double-walled” contact protection of the most exposed and therefore most likely to be subject to any damage to the socket part; at the same time, the easy handling of the spring clamp when connecting and disconnecting the first conductor is ensured by axially displacing the pressure element, and in addition the utilization of the pressure element for the additional shielding of the conductive components leads to a simple construction.
  • the plug is inserted as a second connecting conductor with a plug insulating jacket surrounding the conductive plug pin at a distance, a labyrinth-like nesting of the interlocking insulating sleeve and socket elements with comparatively large electrical creepage distances and excellent protection against contact.
  • the spring clip shown comprises a clamping part KT and a socket part BT.
  • the clamping contact element KK is pin-shaped and provided with a radial opening AK for receiving a first connecting conductor, not shown.
  • the clamping con reaches through with an inner bolt section clock element KK an insulating base element SE, which is inserted into a bore in a housing plate PL and is held on the inside of the housing by means of an insulating washer S and a screw connection V.
  • the socket part BT is formed by a socket-shaped extension BK formed integrally on the clamping part KT with a central bore AB for receiving a second connecting conductor, not shown.
  • the bush-shaped extension BK consists of an inner, thin-walled cylindrical guide body LK with an outer insulating cover ID. The latter is extended outward in the axial direction of the socket beyond the end of the guide body and forms an insulating opening section OA, so that a safety distance with a corresponding creepage distance is formed between the conductive component of the socket part BT and the socket opening.
  • a sleeve-shaped pressing element AP made of insulating material is axially displaceable on the outside.
  • This pressure element is biased in the starting position shown by a pressure spring AF in the axial direction outwards against an annular extension A of the sleeve-shaped extension BK, the radial opening AK being offset against a corresponding contact opening KO of the pressure element AP.
  • the pressing element AP is pressed downward in the axial direction against the pressing spring AF until the radial opening AK is aligned with the contact opening KO.
  • the connecting conductor is clamped between the clamping contact element KK and the wall of the pressing element AP, so that reliable contacting is ensured.
  • the contact opening KO is provided with an inner reinforcing flange F, which transmits the contact pressure to the connecting conductor.
  • the outer surface of the pressing element AP is provided with a ring-groove surface structure GR.
  • the overall one-piece pressing element AP has at its outer end section an upper part, which serves as the first insulating sleeve IHa, which engages around the socket contact element BK in the axial direction up to the height of the socket opening, in the illustrated rest position of the pressing element.
  • the comparatively large axial extent of the insulating sleeve IHa results in considerable creepage distances, so that a high level of safety is provided even in a humid atmosphere.
  • a cylindrical receiving space AR is formed for a plug insulating jacket, for example a conventional insulating sleeve surrounding the plug pin with a radial spacing.
  • a plug insulating jacket for example a conventional insulating sleeve surrounding the plug pin with a radial spacing.
  • the inner end portion of the pressure element AP forms a lower part IHb, which engages around the pressure spring AF and the outer part of the socket element SE.
  • the length of the axial overlap is dimensioned such that reliable shielding against contact by the user is ensured in the position of the pressing element AP that is maximally displaced outward.
  • a part serving as an insulating sleeve IHc is molded onto the base element SE, which in turn encompasses the inner, conductive components of the clamping part KT.
  • the one-piece design of the base element with its insulating sleeve also results in a construction part that can be produced with little effort. Overall, the manufacturing effort in a construction of the present type can be kept low despite the significantly improved touch shield.

Landscapes

  • Connector Housings Or Holding Contact Members (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Connections Arranged To Contact A Plurality Of Conductors (AREA)
  • Electrophonic Musical Instruments (AREA)
  • Springs (AREA)

Claims (4)

1. Borne à ressort électrique comportant un élément de contact (KK) allongé essentiellement cylindrique qui présente un évidement radial (AK) destiné à recevoir un premier conducteur de liaison ainsi qu'un prolongement (BL) en forme de douille isolé de tout contact sur sa face extérieure et comportant un alésage central (AB) pour la réception d'un second conducteur de liaison, borne dans laquelle est prévu un élément d'appui (AP) en matériau isolant et en forme de douille, monté de façon à coulisser longitudinalement sur l'élément de contact (KK), poussé par la tension d'un ressort hors de la position de réception pour le premier conducteur de liaison et pouvant être placé dans la position de réception contre cette tension de ressort, ledit élément d'appui entourant l'élément de contact (KK) avec une sécurité contre tout contact par sa partie inférieure (lHb) au moins dans la zone de réception du premier conducteur de liaison, et par sa partie supérieure (IHa) dans la zone du prolongement (BK) en forme de douille, caractérisée par le fai qu'un espace de réception (AR) cylindrique pour une gaine isolante de fiche est constitué entre la surface intérieure de la partie supérieure (IHa) de l'élément d'appui (AP) et la surface extérieure du prolongement (BK) en forme de douille de l'élément de contact (KK).
2. Borne à ressort selon la revendication 1, caractérisée par le fait qu'un revêtement isolant propre (ID) est prévu sur la surface extérieure du prolongement en forme de douille (BK) de l'élément de contact (KK).
3. Borne à ressort selon la revendication 2, caractérisée par le fait que la partie inférieure (lHb) de l'élément d'appui (AP) a un diamètre accru et recouvre un manchon isolant (IHc) entourant la base de l'élément de contact cylindrique (KK).
4. Borne à ressort selon la revendication 3, caractérisée par le fait que le manchon isolant (IHc) entourant la base de l'élément de contact cylindrique (KK) entoure au moins la partie inférieure du ressort de compression (AF).
EP81108362A 1980-12-12 1981-10-15 Borne de contact électrique à ressort Expired EP0054123B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT81108362T ATE14642T1 (de) 1980-12-12 1981-10-15 Elektrische federklemme.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19803046957 DE3046957A1 (de) 1980-12-12 1980-12-12 "elektrische kontaktklemme"
DE3046957 1980-12-12

Publications (2)

Publication Number Publication Date
EP0054123A1 EP0054123A1 (fr) 1982-06-23
EP0054123B1 true EP0054123B1 (fr) 1985-07-31

Family

ID=6119056

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81108362A Expired EP0054123B1 (fr) 1980-12-12 1981-10-15 Borne de contact électrique à ressort

Country Status (4)

Country Link
EP (1) EP0054123B1 (fr)
JP (1) JPS57123668A (fr)
AT (1) ATE14642T1 (fr)
DE (2) DE3046957A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
YU157585A (en) * 1985-10-03 1988-02-29 Iskra Sozd Elektro Indus Safety plug
FR2754645B1 (fr) * 1996-10-11 1998-12-31 Carrier Kheops Bac Connecteur electrique basse tension
ES2246420T3 (es) 2002-02-02 2006-02-16 Wolfgang B. Thorner Borne polar.
US7481683B1 (en) * 2007-09-11 2009-01-27 Fluke Corporation Retractable contact post shield and method
CN112208370B (zh) * 2020-09-04 2024-04-05 东莞市趣电智能科技有限公司 充电设备
GB2622007A (en) * 2022-08-30 2024-03-06 Viper Innovations Ltd Electrical connector

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE374983C (de) * 1923-05-05 Josef Heinrich Rosenhamer Federklemme
FR1081200A (fr) * 1953-04-24 1954-12-16 Onera (Off Nat Aerospatiale) Dispositif de connexion électrique
DE1036969B (de) * 1955-08-03 1958-08-21 Hirschmann Radiotechnik Schnellspannstecker
DE1292227B (de) * 1955-10-14 1969-04-10 Breuning Elektrische Klemmbuchse
DE1119940B (de) * 1960-09-21 1961-12-21 Seger & Angermeyer Desco Werk Schraubenlose Anschlussklemme mit federbelastetem Druckkontakt
US3349365A (en) * 1965-08-04 1967-10-24 Us Terminals Inc Spring loaded electrical terminal
DE1946158C3 (de) * 1969-09-12 1974-03-07 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Hochspannungssteckverbindung
US3806860A (en) * 1972-12-07 1974-04-23 D Flammini Electrical binding post

Also Published As

Publication number Publication date
JPS57123668A (en) 1982-08-02
DE3046957A1 (de) 1982-07-15
EP0054123A1 (fr) 1982-06-23
DE3171603D1 (en) 1985-09-05
ATE14642T1 (de) 1985-08-15

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