EP0254226B1 - Stecker- und Dosenkombination für den Anschluss elektrischer Lampen und Geräte - Google Patents

Stecker- und Dosenkombination für den Anschluss elektrischer Lampen und Geräte Download PDF

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Publication number
EP0254226B1
EP0254226B1 EP87110395A EP87110395A EP0254226B1 EP 0254226 B1 EP0254226 B1 EP 0254226B1 EP 87110395 A EP87110395 A EP 87110395A EP 87110395 A EP87110395 A EP 87110395A EP 0254226 B1 EP0254226 B1 EP 0254226B1
Authority
EP
European Patent Office
Prior art keywords
plug
socket
contacts
shaped
neutral conductor
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 - Lifetime
Application number
EP87110395A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0254226A2 (de
EP0254226A3 (en
Inventor
Rolf K. Dipl.-Ing. Wernick
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.)
BRUFIELD INVESTMENTS Ltd
Original Assignee
BRUFIELD INVESTMENTS 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 BRUFIELD INVESTMENTS Ltd filed Critical BRUFIELD INVESTMENTS Ltd
Publication of EP0254226A2 publication Critical patent/EP0254226A2/de
Publication of EP0254226A3 publication Critical patent/EP0254226A3/de
Application granted granted Critical
Publication of EP0254226B1 publication Critical patent/EP0254226B1/de
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
    • 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
    • H01R13/447—Shutter or cover plate
    • H01R13/453—Shutter or cover plate opened by engagement of counterpart
    • H01R13/4532—Rotating shutter
    • 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
    • H01R13/64—Means for preventing incorrect coupling
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R33/00—Coupling devices specially adapted for supporting apparatus and having one part acting as a holder providing support and electrical connection via a counterpart which is structurally associated with the apparatus, e.g. lamp holders; Separate parts thereof
    • H01R33/05—Two-pole devices
    • H01R33/46—Two-pole devices for bayonet type base

Definitions

  • the invention relates to a socket-plug combination for connecting electrical lamps and devices with a bayonet-like connection between the plug and socket, curved curved knife contacts and a central, also axially directed center contact as a neutral conductor and a socket with electrical contacts, in their arrangement and shape correspond to the contacts of the plug.
  • a quick safety connection for electric lamps and electrical appliances which consists of a plug and a socket and the socket has a central, more or less cylindrical recess in which the electrical contacts are exposed and into which a plug with a corresponding cross-section can be inserted, which carries electrical contacts in the form of metal strips on its outer surface.
  • the earth conductor or neutral conductor is arranged in the center of both parts. The plug is locked with the socket via a so-called bayonet connection.
  • connection points are arranged outside and below the socket. They are therefore unsecured, for example when the protective cap is removed or the protective cap is damaged, and can be damaged, in particular the insulation can be damaged, so that here too, for example when dusting, there is a risk of injury or burns.
  • the invention has for its object to provide a socket-plug combination that is safe, can not lead to injuries from electric shocks, which has a compact design and in which all live or current-carrying parts with regard to their line or cable connections are protected in the housing of the combination.
  • a rotatable disk with circular-arc-shaped slots is provided, which is mounted on a sleeve-shaped neutral conductor and the socket is formed by a sleeve-shaped housing which carries groove-shaped recesses, the cams of the plug record, tape.
  • the combination according to the invention is suitable for all types of electricity consumers, both as a connection for ceiling and wall lamps, for conventional socket connections, for consumers such as floor lamps, irons and the like, and it can because of the design of the box can also be used advantageously as a flush-mounted junction box, which can be closed by a cap or a cover when not in use.
  • the box comprises a body in which a sleeve is centrally attached, which forms both the neutral conductor and an axially movable spring-loaded washer with circular arc-shaped slots spaced apart from one another, which the current-carrying contacts in the body correspond, which is surrounded and held by a sleeve-shaped housing and carries groove-shaped recesses on the inside, which receive the corresponding cams of the plug for the phase-correct electrical connection.
  • the slots on the circle of the axially movable spring-loaded washer are preferably curved in accordance with the radius of the circle and are aligned with correspondingly curved U-shaped electrical metal contacts, into which correspondingly curved knife-shaped contacts of the connector engage after passing through the slots of the washer when the connector is rotated.
  • the design is such that a central pin is formed coaxially to the sleeve of the body carrying the electrical contacts on the plug for the neutral conductor, which first enters the sleeve and makes a contact and only when the plug is inserted and turned further does the actual electrical Contacts take effect.
  • the knife-shaped circular arc-shaped knife contacts then enter the corresponding electrical U-shaped contacts of the socket, the lugs of the plug in the corresponding groove-shaped recesses of the socket housing then coming into a locking position when a complete electrical contact is made.
  • the connector Due to the spring loading of the disc, the connector is finally pressed with its approaches into corresponding recesses in the socket housing located laterally to the groove, so that a bayonet lock is formed in this way, which prevents the connector from being pulled out.
  • the plug can only be pulled out if the plug is pressed into the socket and at the same time rotated again by a certain angle, which can be 30 or 40 °.
  • the body with the electrical connections is also essentially circular and represents a plate on which the electrical connections are fastened. It is fastened with the help of screws together with the housing surrounding the body, for example on a ceiling, but also on a room wall, if necessary.
  • the locking position or the position in which the plug can be removed from the socket is identified by markings on the plug and on the socket.
  • the plug itself consists essentially of two parts, namely a cup-shaped round part corresponding to the inner diameter of the housing of the socket, in the interior of which the electrical clamping contacts are fastened.
  • the knife-shaped contacts which protrude through the bottom of the cup-shaped part, originate from these.
  • the rectangular, more or less circumferentially wide or thick lugs are formed on the outer circumference of the cup, which ensure the locking and the correct phase connection, as described above.
  • This cup-shaped part is covered by a cover with a hole for the passage of the cable, on or in which a clamping device can be included to relieve the strain on the cable and a suspension device, for example in the form of a bracket or a joint for a lamp.
  • the lid is connected to the cup-shaped part by screws.
  • the whole combination can be equipped with seals in the form of O-rings or sealed washers, so that it can also be used in damp rooms.
  • reference numeral 1 represents a ceiling, for example a ceiling.
  • the socket into which the plug is inserted comprises a cylindrical housing 2 which surrounds and holds the body 3.
  • the cylindrical housing as can clearly be seen in FIG. 3, is provided with lugs 4 with holes for screws 5, which are also separated by two opposite approaches 6, of which only one is shown in Fig. 1, are aligned.
  • the screws 5 thus go through the lugs 4 of the housing 2 and through the lugs 6 of the body 3.
  • the current-carrying lines are connected with two or three contacts in the usual way, depending on the type of current or circuit. These contacts are screw-type clamping contacts, which have the reference numerals 8 and 9 (Fig. 1).
  • the clamping screw 10 receives the neutral conductor and is connected to a metallic sleeve 11 which protrudes a considerable distance from the body 3 and carries on its outer periphery a washer 12 which is spring-loaded by the spring 13, such that the washer 12 after is pressed below taking into account the representation in Fig. 1.
  • the housing 2 has two groove-shaped recesses on essentially opposite sides, which are identified by the reference numerals 14 and 15 in FIG. 1. 2, these grooves are laterally widened in the circumferential direction of the housing 2, in the same direction, so that two lugs 17 and 18 arranged on the plug housing 16 are inserted into these extensions can and under the action of the spring, which presses on the disc 12 on the connector housing, snap in the manner of a bayonet lock after the connector is rotated accordingly by an angle of 30 or 40 ° in a certain direction.
  • the plug itself or its housing contains four knife contacts 19 lying on its circle with the corresponding clamp connections 19 '.
  • This housing has a cup-shaped shape and is covered by a cover 20 which is fastened to the housing by means of screws 21.
  • Reference numeral 22 represents the passage for an electrical cable that leads to a consumer.
  • Fig. 2 From Fig. 2 it can be seen that in the disc 12 four curved slots 23 are arranged, the curvature of which corresponds to the radius of the circle on which these slots or the knife contacts 19 lie.
  • the dashed lines in FIG. 2 are the electrical contacts 24, which are connected to the clamping connections 8 and 9 and into which the knife contacts 19 engage.
  • the plug carries a pin 25 in the middle which engages in the sleeve 11 and which is connected to the neutral conductor.
  • Fig. 4 the socket according to Fig. 3 is attached to a ceiling 1 and covered by a cap 26 when not in use.
  • the cap 26 is held by a snap lock 27, which consists of an annular or punctiform elevation on the inside, which in a corresponding recess 28 engages (Fig. 3).
  • FIG. 5 shows the arrangement of the socket according to FIG. 3 in a ceiling or in a material layer 29 using an installation box 30 with peg-shaped or tubular projections 31, into which the fastening screws 5 ′ engage.
  • This flush-mounted design can be covered or closed in a conventional manner in the case of non-use by a cover.
  • the reference numeral 32 represents the cable feed channel.
  • the box which is simplified and shown in a different view in FIGS. 2 and 3, is screwed to a ceiling, for example, by means of the screws 5 '.
  • the electrical lines emerge somewhere within the housing 2 and because of the distance between the ceiling 1 and the body 3 due to the arrangement of the lugs 6, these can be accommodated comfortably after the attachment to the clamping contacts 8 and 9 within the housing 2.
  • the socket is now ready to accept the plug.
  • the disc 12 is axially movable and spring-loaded. It only contains slots curved as a circular arc, as described above, in a number which corresponds to the number of contacts provided.
  • the disc can rotate on this sleeve through an angle of 30 ° (see Fig. 2). A threat this prevents accidental contact with the live contacts.
  • the plug consists of a cup-shaped plug housing 16, also circular in shape and slightly smaller in diameter than the inside diameter of the socket housing 2.
  • the knife-shaped, slightly curved contacts 19 are fastened in alignment with the contacts 24 of the socket, the clamping connections 19 ′ being located inside the cup-shaped housing, which is covered by the cover 20 and held by means of the screws 21 is.
  • the pin 25 to which the neutral conductor is connected first arrives in the open end of the sleeve 11.
  • the outer surface of the cup-shaped plug housing 16 takes the disc 12, which can only be rotated over a limited angular range, so that finally the knife-shaped contacts 19 enter the electrical contacts 24 through the slots 23 of the disc when the plug is around the limited angular amount is rotated, the disc is taken and the lugs 17 of the connector housing 16 enter the lateral recess and when releasing the plug lie behind corresponding gradations in the housing 2, which happens due to the expansion of the spring 13, so that a bayonet fitting is achieved .
  • Corresponding suspension devices, joints or the like which can withstand tensile loads can be arranged on the cover 20 with the cable duct, on which, for example, a ceiling lamp with a pendulum can be suspended.
  • the more or less cylindrical shape of the combination according to the invention can be covered with a decorative cup-shaped cover attached to the lamp or its pendulum, as is the case today with normal connections by means of luster terminals and wire ends.
  • the body 3 has the shape shown in FIG. 1.

Landscapes

  • Connector Housings Or Holding Contact Members (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Connecting Device With Holders (AREA)
EP87110395A 1986-07-23 1987-07-17 Stecker- und Dosenkombination für den Anschluss elektrischer Lampen und Geräte Expired - Lifetime EP0254226B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3624875 1986-07-23
DE19863624875 DE3624875A1 (de) 1986-07-23 1986-07-23 Stecker- und dosenkombination fuer den anschluss elektrischer lampen und geraete

Publications (3)

Publication Number Publication Date
EP0254226A2 EP0254226A2 (de) 1988-01-27
EP0254226A3 EP0254226A3 (en) 1989-03-15
EP0254226B1 true EP0254226B1 (de) 1993-01-20

Family

ID=6305786

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87110395A Expired - Lifetime EP0254226B1 (de) 1986-07-23 1987-07-17 Stecker- und Dosenkombination für den Anschluss elektrischer Lampen und Geräte

Country Status (5)

Country Link
US (1) US4780089A (zh)
EP (1) EP0254226B1 (zh)
DE (2) DE3624875A1 (zh)
ES (1) ES2037033T3 (zh)
GR (2) GR3007454T3 (zh)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6382990B1 (en) * 1999-11-19 2002-05-07 Societe D'exploitation Des Procedes Marechal (Sepm) Electric connection base plate in particular for explosible environment and method for making same
DE10211758B4 (de) * 2002-03-14 2005-08-18 Böhm, Reinhard Montagevorrichtung für eine Leuchte
US6774307B2 (en) 2002-05-07 2004-08-10 Applied Technology And Solutions Through-wall electrical system
US7165992B1 (en) 2006-03-03 2007-01-23 Schiaffino Mario A Ceiling electrical connector assembly
US7666010B2 (en) * 2006-10-27 2010-02-23 Leviton Manufacturing Company, Inc. Modular wiring system with locking elements
TW201021323A (en) * 2008-11-21 2010-06-01 sheng-xing Liao Safety socket structure

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA696549A (en) * 1964-10-27 F. Suhr Werner Safety outlet and plug
US1615726A (en) * 1924-11-12 1927-01-25 Row William Electrical plug switch
US3112973A (en) * 1960-09-26 1963-12-03 Hubbell Inc Harvey Locking three-wire electrical cord connector
GB1050907A (zh) * 1964-11-17 1900-01-01
US3339171A (en) * 1965-04-08 1967-08-29 Hubbell Inc Harvey Interlocking electrical connectors and plugs having improved keying means
US3500056A (en) * 1965-04-27 1970-03-10 Hubbell Inc Harvey Electrical wiring system and components therefor
US3339039A (en) * 1965-09-10 1967-08-29 Arrow Hart & Hegeman Electric Electrical connector with contactprotecting and arc-quenching shield
DE1590079A1 (de) * 1966-01-05 1970-05-21 Ernst Brunner Decken- oder Wandauslass fuer elektrische Leitungen
US3392362A (en) * 1966-05-04 1968-07-09 Hubbell Inc Harvey Electrical connector
US3985417A (en) * 1975-04-24 1976-10-12 Russell William Richardson Coupling device for electrical fixture
DE2624461A1 (de) * 1976-06-01 1977-12-22 Donald John Rohrssen Elektrische verbindungsvorrichtung
FR2358032A1 (fr) * 1976-07-09 1978-02-03 Sepm Sa Perfectionnements aux connecteurs et plus particulierement aux connecteurs de charge
DE7726318U1 (zh) * 1977-08-25 1979-02-15 Gaeth, Alfred, 2358 Kaltenkirchen
US4203640A (en) * 1979-01-24 1980-05-20 The United States Of America As Represented By The Secretary Of The Interior Electrical cable coupler with rotatable protective covers
DE2917112C2 (de) * 1979-04-27 1982-07-01 Frentrup, Adolf, 4194 Kleve Sicherheitssteckdose
US4461523A (en) * 1981-12-01 1984-07-24 North American Philips Corporation Protective lampholder for bayonet base lamp
DE3235985A1 (de) * 1982-09-29 1984-03-29 Heinz 8900 Augsburg Hane Geraet zum koch-braten-grillen-fritieren usw.

Also Published As

Publication number Publication date
DE3624875A1 (de) 1988-01-28
EP0254226A2 (de) 1988-01-27
ES2037033T3 (es) 1993-06-16
US4780089A (en) 1988-10-25
GR3007454T3 (zh) 1993-07-30
DE3783673D1 (de) 1993-03-04
DE3624875C2 (zh) 1989-12-07
EP0254226A3 (en) 1989-03-15
GR920300097T1 (zh) 1993-06-07

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