EP0337332B1 - Elektrische Schutzkontaktsteckdose - Google Patents

Elektrische Schutzkontaktsteckdose Download PDF

Info

Publication number
EP0337332B1
EP0337332B1 EP89106226A EP89106226A EP0337332B1 EP 0337332 B1 EP0337332 B1 EP 0337332B1 EP 89106226 A EP89106226 A EP 89106226A EP 89106226 A EP89106226 A EP 89106226A EP 0337332 B1 EP0337332 B1 EP 0337332B1
Authority
EP
European Patent Office
Prior art keywords
clamping spring
terminal
protective
clamping
electric socket
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
EP89106226A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0337332A2 (de
EP0337332A3 (en
Inventor
Werner Bracht
Günter Schulte-Lippern
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.)
ABB AG Germany
Original Assignee
Asea Brown Boveri AG Germany
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 Asea Brown Boveri AG Germany filed Critical Asea Brown Boveri AG Germany
Priority to AT89106226T priority Critical patent/ATE95641T1/de
Publication of EP0337332A2 publication Critical patent/EP0337332A2/de
Publication of EP0337332A3 publication Critical patent/EP0337332A3/de
Application granted granted Critical
Publication of EP0337332B1 publication Critical patent/EP0337332B1/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
    • H01R13/648—Protective earth or shield arrangements on coupling devices, e.g. anti-static shielding  
    • H01R13/652—Protective earth or shield arrangements on coupling devices, e.g. anti-static shielding   with earth pin, blade or socket
    • 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
    • H01R24/76—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure with sockets, clips or analogous contacts and secured to apparatus or structure, e.g. to a wall
    • H01R24/78—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure with sockets, clips or analogous contacts and secured to apparatus or structure, e.g. to a wall with additional earth or shield 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
    • 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
    • H01R4/4809—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar
    • H01R4/48185—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar adapted for axial insertion of a wire end
    • H01R4/4819—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar adapted for axial insertion of a wire end the spring shape allowing insertion of the conductor end when the spring is unbiased
    • H01R4/4821—Single-blade spring
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R2103/00—Two poles
    • 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
    • H01R4/4809—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar
    • H01R4/4828—Spring-activating arrangements mounted on or integrally formed with the spring housing
    • H01R4/483—Pivoting arrangements, e.g. lever pushing on the spring
    • 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
    • H01R4/4809—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar
    • H01R4/4846—Busbar details
    • H01R4/485—Single busbar common to multiple springs
    • 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
    • H01R4/4809—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar
    • H01R4/4846—Busbar details
    • H01R4/4852—Means for improving the contact with the conductor, e.g. uneven wire-receiving surface

Definitions

  • the invention relates to an electrical protective contact socket according to the preamble of claim 1.
  • an electrical protective contact socket which has suitable screwless conductor terminals for connecting a phase conductor, a neutral conductor and a protective conductor.
  • the pole conductor connection terminals are aligned at an acute angle to the protective conductor connection terminal, all conductor connection terminals being accessible from one connection side.
  • a common clamping spring release element is also provided, which covers the clamping spring receptacles of the conductor connection terminals and facilitates the electrical connection and the electrical separation of the current conductors by means of clamping spring push buttons attached to the clamping spring release element.
  • the conductor terminal disclosed in the cited prior art is not yet optimally suitable for automated production and assembly.
  • the clamping spring is housed as a separate part in a form niche of the base.
  • the plug contact socket is also manufactured as a separate part separate from the conductor connection terminal.
  • a further disadvantage is that the clamping spring accommodated in a form niche of the base contacts the conductor to be connected only at one point, as a result of which the contacting deteriorates and the contact resistance is increased.
  • the opening in the busbars, into which the clamping spring push-button engages, is also not formed centrally. This makes it difficult to convert to screw terminals as desired.
  • the clamping spring release pushbuttons formed on the upper part of the base by means of elastic webs perform a linear movement, as a result of which their webs are compressed, which increases material wear.
  • a protective contact socket with screwless conductor terminals is also known, in which the pole conductor terminals are aligned at an acute angle to the protective conductor terminal and all conductor terminals are accessible from one connection side.
  • a Polleiter connection terminal is combined with the associated plug contact socket to form a part, which also includes a clamping spring housing in which a clamping spring is mounted.
  • a protective conductor connecting terminal formed in the base is still used, so that the protective conductor connecting terminal is not yet combined with the protective conductor clip to form a common part.
  • a major disadvantage of this arrangement is that the safety socket has no base cover.
  • the socket cover is removed relatively often without first switching off the power.
  • the exposed contacts then become a considerable source of danger in this case, but this can be considerably reduced by an additional base cover.
  • the known protective contact socket has no base cover, there is also no possibility of integrally molding the clamping spring release buttons required for the conductor connection terminals on the base cover.
  • DE-OS 3 036 545 does not disclose anything about the position of the protective conductor connection terminal, but describes a U-shaped insulating part which is fastened to the base of the socket and on which release buttons associated with the two conductor connection terminals are molded.
  • the U-shaped insulating part cannot be referred to as a base cover, since at least the contact parts of the pole plug contact sockets are not covered by the cover.
  • a stamped part combining the connecting terminal and the plug contact socket is also known from DE-PS 1 955 773.
  • the spring clamp is actuated with a screwdriver to loosen the wire, so that no spring release buttons are required and there is no base cover.
  • the object of the present invention is, while avoiding the above disadvantages, to form the conductor connection terminals of a protective contact socket of the type mentioned in the preamble of claim 1 in such a way that automatic manufacture and convertibility from screwless terminal connection to screw-type terminal connection is made possible in a simple manner, all conductor connection terminals being observed in compliance with relevant standards should be electrically safe and user-friendly from a conductor connection side with good contact at the same time.
  • a separate spring clip housing is formed as a clamping spring receptacle, which is connected to the same material with the pole plug contact socket, a pole conductor connecting terminal is created for the pole conductor, which can be manufactured as a one-piece stamped and bent part and can be inserted and locked into the socket base after the clamping spring has been recorded.
  • a protective conductor connecting terminal is created, which, after receiving the clamping spring, is connected together with the protective contact earthing clip to form a one-piece assembly part.
  • the base cover which is also in one piece, covers all electrical parts and, at the same time, a simple release of the respective clamp connection can be achieved by means of molded spring release buttons.
  • the opening to be penetrated by the respective pressure cams of the clamping spring release buttons is mounted centrally in the clamping spring housing, because this makes it easy to convert to a screw terminal connection, ie, for example, a lift screw terminal can be used.
  • the clamping spring itself can be locked in a simple manner by means of a locking connection in the clamping spring housing.
  • pole conductor connecting terminals 3 are aligned at an acute angle to a protective conductor connecting terminal 4.
  • the pole conductor connection terminals 3 and the protective conductor connection terminal 4 fixed to a protective contact earthing clip 6 are accessible from one connection side for the purpose of connecting current conductors 10.
  • the Polleiter connection terminals 3 are locked in a base 1 by means of locking parts 24 placed outwards.
  • the protective conductor connection terminal 4 is fastened to the base 1 by means of a hollow rivet 25 via the protective contact earthing clip 6 connected to it.
  • 12 pole plug socket cover tabs 13 are integrally formed on a web. Furthermore, a fastening tab 14, which rests on the protective contact earthing bracket 6, is formed on the web 12, which is fixed on the protective contact earthing clip 6 by means of the hollow rivet 25.
  • FIG. 2 shows the pole conductor connection terminal 3 without the clamping spring 9 described in FIGS. 4, 5.
  • Each pole conductor connection terminal 3 has a first clamping spring housing 7, which is connected to the pole plug contact socket 5 in the same material.
  • the Polleiter connection terminal 3 is manufactured as a one-piece stamped and bent part.
  • Two parallel V-shaped first beads 17 are formed in a first ceiling wall 16 of the first clamping spring housing 7, between which a rectangular, centrally recessed first opening 18 is provided.
  • the first beads 17 ensure a secure guidance and a better hold of the current conductors 10 to be connected.
  • side walls 19 have latching parts 24 which serve to latch the pole conductor terminal 3 in the base 1.
  • bottom wall halves 21 are angled at right angles to the side walls 19, so that overall there is a cuboid-shaped first clamping spring housing 7.
  • a slot 20 is located between the bottom wall halves 21.
  • opposing semicircular elevations are formed in the bottom wall halves 21, which form a first latching pin 23.
  • this latching pin 23 serves to securely latch and hold the clamping spring 9.
  • flag-like extensions 22 are formed, each of which is bent inwards by 180 ° and bent out in a semicircle in the area of the plug pin receptacle to be formed are.
  • the pole plug socket 5 formed in this way likewise has outwardly positioned latching parts 24 for the mounting in the base 1.
  • FIG. 3 shows the clamping spring 9 to be inserted into the first clamping spring housing 7. It is designed as a double spring, which enables two current conductors to be connected.
  • the clamping spring 9 has two S-shaped curved and separated by a first slot recess 33 support legs 34 and bent at an acute angle and provided with clamping edges 35 and separated by a second slot recess 36 clamping legs 37, which are integrally connected to each other via a common base plate 38.
  • the current conductors 10 to be connected can be securely clamped like barbs on the clamping edges 35.
  • the additionally formed, on the current conductors 10 also support legs 34 serve in addition to stabilizing the clamping spring 9 in the first clamping spring housing 7 and the additional clamping of the current conductor 10.
  • each current conductor 10 is thus contacted at two points, better contact and a Reduction in contact resistance achieved.
  • the second slot recess 36 which serves as a support for the pressure cams 15 of the clamping spring release buttons 11, is formed as pressure cam supports 40.
  • FIG. 4 shows a second exemplary embodiment of the clamping spring 9, in which the support legs 34 are angled perpendicularly to the base plate 38 and are bent away at the end in the direction of the current conductors 10 to be inserted.
  • FIG. 5 shows the pole conductor connecting terminal 3 with the inserted clamping spring 9 and the clamping spring release button 11 of the base cover 2 arranged above it.
  • the base cover 2 has a web 12, on each end of which the pole plug contact bushings 5 covering pole plug socket cover flaps 13 are angled.
  • a fastening tab 14 is formed on the protective contact earthing bracket 6 and fastened to the base 1 by means of a hollow rivet 25.
  • the tabs 13, 14 are clamp spring release buttons 11 pivotally formed on an elastic film hinge 42.
  • Pressure cams 15 pointing in the direction of the clamping spring 9 pass through openings 18, 28 of the clamping spring housings 7, 8.
  • FIG. 6 shows a sectional view through the pole conductor terminal 3 inserted into the base 1 with the base cover 2 attached.
  • FIG. 7 shows a sectional view through the pole conductor connecting terminal 3 with the base cover 2 attached, the clamping spring 9 described in FIG. 5 being inserted in the first clamping spring housing 7 according to a second exemplary embodiment.
  • FIG. 8 shows the pole conductor terminal 3, which is converted to a screw terminal connection in the form of a lift screw terminal 44.
  • FIG. 9 shows an essentially U-shaped stamped and bent part which, together with a second top wall 26 of the protective contact earthing clip 6, forms the second clamping spring housing 8.
  • a bottom wall 29 has a second snap-in pin 43 which interacts with the corresponding snap-in recess 39 of the clamping spring 9.
  • a bottom wall locking tab 32 is formed on the bottom wall 29, which serves to stabilize the clamping spring 9 and to separate the two insertion openings provided for the current conductors 10 to be connected.
  • Crimping tongues 31 are formed on second side walls 30 for attachment to the protective contact earthing clip 6.
  • FIG. 10 shows the second clamping spring housing 8 connected to the protective contact earthing clip 6 together with the inserted clamping spring 9.
  • a second opening 28 is provided for the pressure cams 15 of the clamping spring release button 11 to reach through.
  • FIG. 11 shows a sectional view through the protective conductor connecting terminal assembly 6, 8, 9, together with the base cover 2, which is inserted into the base 1 and fastened there by means of the hollow rivet 25 and locked in place by means of the bottom wall locking tab 32.
  • the base cover 2 serving as a spring release is provided with a protective contact socket which can be manufactured fully automatically in a simple manner.

Landscapes

  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Amplifiers (AREA)
  • Bipolar Transistors (AREA)
  • Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)
  • Connections Arranged To Contact A Plurality Of Conductors (AREA)
  • Branch Pipes, Bends, And The Like (AREA)
  • Photoreceptors In Electrophotography (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Road Signs Or Road Markings (AREA)
  • Connecting Device With Holders (AREA)
  • Developing Agents For Electrophotography (AREA)
  • Cookers (AREA)
  • Discharge Heating (AREA)
  • Fuses (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Connector Housings Or Holding Contact Members (AREA)
EP89106226A 1988-04-14 1989-04-08 Elektrische Schutzkontaktsteckdose Expired - Lifetime EP0337332B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89106226T ATE95641T1 (de) 1988-04-14 1989-04-08 Elektrische schutzkontaktsteckdose.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8804924U 1988-04-14
DE8804924U DE8804924U1 (de) 1988-04-14 1988-04-14 Elektrische Schutzkontaktsteckdose

Publications (3)

Publication Number Publication Date
EP0337332A2 EP0337332A2 (de) 1989-10-18
EP0337332A3 EP0337332A3 (en) 1990-09-12
EP0337332B1 true EP0337332B1 (de) 1993-10-06

Family

ID=6822929

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89106226A Expired - Lifetime EP0337332B1 (de) 1988-04-14 1989-04-08 Elektrische Schutzkontaktsteckdose

Country Status (7)

Country Link
EP (1) EP0337332B1 (tr)
AT (1) ATE95641T1 (tr)
DE (2) DE8804924U1 (tr)
ES (1) ES2046362T3 (tr)
FI (1) FI95089C (tr)
NO (1) NO175176C (tr)
TR (1) TR24507A (tr)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4008306A1 (de) * 1990-03-15 1991-09-19 Asea Brown Boveri Elektrischer zugschalter und verfahren zur montage seiner schaltmechanik
ES2147706B1 (es) * 1998-03-20 2001-04-01 Interlander Patermann S L Conjunto modular de enchufe para mecanismos de superficie.
ES2157819B1 (es) * 1999-08-13 2002-03-01 Tecnica De Conexiones S A Borne de conexion para luminarias.
US6255927B1 (en) * 2000-05-15 2001-07-03 Eaton Corporation Cable lug conductor adapter device
DE20300266U1 (de) * 2003-01-08 2004-05-19 Bals Elektrotechnik Gmbh & Co. Kg Leiteranschlussklemme, insbesondere für Steckverbinder
FI115933B (fi) * 2003-09-15 2005-08-15 Ensto Busch Jaeger Oy Rakennusten sähköasennuksissa käytettävä sähköasennuskaluste
ES2261047B1 (es) * 2004-12-10 2007-04-16 Simon, S.A. Mecanismo para bases de enchufe empotrables.
DE102009049646A1 (de) 2009-10-15 2011-04-28 Elso Gmbh Kontaktfederkörper für elektrische Installationsgeräte
DE102012006500A1 (de) * 2012-03-29 2013-10-02 Abb Ag Polklemme für einen Steckdoseneinsatz
DE102013212717A1 (de) * 2013-06-28 2014-12-31 Metalluk Bauscher Gmbh & Co Kg Steckverbinder
CN105281129B (zh) * 2014-05-27 2017-11-14 浙江恒达高电器有限公司 德式插座接地片结构及其装配方法
DE102015119388B4 (de) * 2015-11-11 2023-04-06 Abb Schweiz Ag Steckdosenpolkontakt
DE102015119389A1 (de) * 2015-11-11 2017-05-11 Abb Ag Steckdosenpolkontakt

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1690436C3 (de) * 1967-09-20 1975-08-28 Gebr. Vedder Gmbh, 5885 Schalksmuehle Schraubenlose Stromleiter-Anschlußklemme
DE3036545A1 (de) * 1980-09-27 1982-05-27 Fa. Albrecht Jung, 5885 Schalksmühle Schutzkontaktsteckdose
DE8424056U1 (de) * 1984-08-14 1984-11-15 Gira Elektrotechnische Industrie Gustav Giersiepen, 5608 Radevormwald Schraubenlose Anschlußklemme für elektrische Geräte, insbesondere für Installationsgeräte
DE3621126A1 (de) * 1986-06-24 1988-01-07 Gira Elektrotech Ind Sockel fuer eine elektrische schutzkontaktsteckdose

Also Published As

Publication number Publication date
TR24507A (tr) 1991-11-12
DE8804924U1 (de) 1988-06-01
FI891751A (fi) 1989-10-15
FI891751A0 (fi) 1989-04-13
DE58905802D1 (de) 1993-11-11
ES2046362T3 (es) 1994-02-01
NO175176B (no) 1994-05-30
NO891526D0 (no) 1989-04-13
FI95089B (fi) 1995-08-31
NO891526L (no) 1989-10-16
FI95089C (fi) 1995-12-11
EP0337332A2 (de) 1989-10-18
EP0337332A3 (en) 1990-09-12
ATE95641T1 (de) 1993-10-15
NO175176C (no) 1994-09-07

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