EP0171775A2 - Interrupteur de sûreté - Google Patents

Interrupteur de sûreté Download PDF

Info

Publication number
EP0171775A2
EP0171775A2 EP85110059A EP85110059A EP0171775A2 EP 0171775 A2 EP0171775 A2 EP 0171775A2 EP 85110059 A EP85110059 A EP 85110059A EP 85110059 A EP85110059 A EP 85110059A EP 0171775 A2 EP0171775 A2 EP 0171775A2
Authority
EP
European Patent Office
Prior art keywords
circuit breaker
coil
core
measuring device
safety switch
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Withdrawn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
EP85110059A
Other languages
German (de)
English (en)
Other versions
EP0171775A3 (fr
Inventor
Klaus Hafemann
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.)
Wik Elektro-Hausgerate-Vertriebsgesellschaft Mbh & Co Produktions-Kommanditgesellschaft
WIK Elektro Hausgeraete
Original Assignee
Wik Elektro-Hausgerate-Vertriebsgesellschaft Mbh & Co Produktions-Kommanditgesellschaft
WIK Elektro Hausgeraete
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 Wik Elektro-Hausgerate-Vertriebsgesellschaft Mbh & Co Produktions-Kommanditgesellschaft, WIK Elektro Hausgeraete filed Critical Wik Elektro-Hausgerate-Vertriebsgesellschaft Mbh & Co Produktions-Kommanditgesellschaft
Publication of EP0171775A2 publication Critical patent/EP0171775A2/fr
Publication of EP0171775A3 publication Critical patent/EP0171775A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H83/00—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current
    • H01H83/02—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by earth fault currents
    • 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
    • H01R13/66—Structural association with built-in electrical component
    • H01R13/70—Structural association with built-in electrical component with built-in switch
    • H01R13/713—Structural association with built-in electrical component with built-in switch the switch being a safety switch
    • H01R13/7135—Structural association with built-in electrical component with built-in switch the switch being a safety switch with ground fault protector

Definitions

  • the invention relates to a safety switch, in particular a socket with a plug which can be plugged into another socket, with a fault current measuring device and a circuit breaker which interrupts the circuit to be closed or closed when fault current is determined.
  • Safety switches designed as sockets are known, in which the circuit breaker is actuated via a control current after the fault current has been determined and is brought into the circuit breaker off position.
  • Such sockets are disadvantageous in that a control current is required for the actuation of the circuit breaker. That is an uncertainty factor. If the control current, which cannot be controlled anyway, fails, then a protective circuit is excluded when determining the residual current. Residual current determination means the determination of current differences between the conductor leading to the consumer and returning conductor.
  • the invention is based on the object of creating a safety switch of the type described in the introduction, in which the actuation of the circuit breaker does not require control current in the event of fault current determination.
  • the safety switch according to the invention in which the previously derived and stated object is achieved, is initially and essentially characterized in that an electromagnet - with a coil and a core - is connected to the fault current measuring device, the coil of which is in electrical connection with the fault current measuring device and the core of which is in mechanical connection with the circuit breaker and, in the event of a coil dropping as a result of residual current detection, the circuit breaker is brought into the circuit breaker off position by means of a return spring acting on the core, and the current-carrying coil with the entrained core and tensioning of the return spring from the circuit breaker Off position in the circuit breaker on position is adjustable by means of an adjusting mechanism.
  • the circuit breaker is thus transferred mechanically to the circuit breaker off position when residual current is determined, so that the otherwise usual uncertainty factor, control current, is eliminated.
  • the coil of the electromagnet is dimensioned so that the core is not retractable from the circuit breaker off position against the action of its return spring, but only "sticks" in the current-carrying coil and is consequently carried away by the coil when it is is transferred from the protective conductor off position to the circuit breaker on position by means of the adjusting mechanism.
  • the coil falls off, consequently either the core cannot be taken away from the coil at all, or - due to its action by the return spring - snaps out of the coil, so that the circuit breaker is in the Circuit breaker off position remains or returned to circuit breaker off position.
  • care is taken that the coil of the electromagnet must always be moved back to the circuit breaker off position if the core and above the circuit breaker are to be moved to the circuit breaker on position. This prevents z. B. with the plug inserted into the socket, the connected consumer can consume without further power if a previously determined fault current is no longer present and consequently the coil is excited again via the fault current measuring device.
  • the core of the electromagnet remains positioned in the circuit breaker off position and must be transferred from the excited coil to the circuit breaker on position. This can only be achieved by moving the coil from the circuit breaker on position to the circuit breaker off position and back with the help of the actuating mechanism to be actuated from the outside and consequently only with the help of an operator.
  • the invention provides that a pivot lever is articulated on the core of the electromagnet on the one hand and on the fixedly anchored return spring on the other hand and the pivot lever is rotatably mounted between two articulation points on a switching shaft for the circuit breaker and works against a stop with the core emerging from the coil , so that the assignment of core and coil is retained even when the core emerges from the coil.
  • a relatively simple mechanism for actuating the circuit breaker is implemented in the embodiment of a lever mechanism.
  • the coil of the electromagnet is arranged on a slide which is guided in the switch housing and is effectively acted upon by a return spring and a spring-loaded locking lever in the circuit breaker on position, and the locking lever is pivotably mounted and engages behind the locking lever a locking cam on the slide in the locking position. Consequently, the coil or its slide can only be returned to the circuit breaker-off position by actuating the adjusting mechanism in order to take up the core again, for which purpose it is necessary to transfer the locking lever into the unlocking position.
  • a further preferred embodiment of the safety switch according to the invention is characterized in that the adjusting mechanism has a rotary knob accessible outside the switch housing with a pinion on its bearing shaft, and the pinion engages with a toothed rack on the slide, into the rotary knob an unlocking plunger guided through the hollow bearing shaft is axially adjustable against spring action and the unlocking plunger pushes back the locking lever in the unlocked position in the axially adjusted position.
  • the rotary knob thus serves on the one hand to move the carriage or the spool and on the other hand receives the unlocking plunger for the locking lever.
  • a preferred embodiment of the safety switch according to the invention is further characterized in that the switch housing with the fault current measuring device, the circuit breaker, the electromagnet and the actuating mechanism is designed as a module which can be inserted into the socket.
  • a safety switch in particular a socket with a plug that can be plugged into another socket, is implemented, which does not require control current for the actuation of the circuit breaker, but rather ensures mechanical actuation of the circuit breaker when fault current is determined , for which a relatively simple and reliable construction is realized.
  • the circuit breaker functions independently of an error source which is present in the prior art, namely independently of a control current.
  • a socket 1 is shown as a safety switch, specifically a socket which can be plugged into a wall socket and which has a fault current measuring device 2, connected to two electrical conductors 3, and a circuit breaker 4 inserted into the conductor 3;
  • the circuit breaker 4 interrupts the circuit to be closed or closed when residual current is determined.
  • an electromagnet - with a coil 5 and a core 6 - is connected, the coil 5 being in electrical connection with the fault current measuring device 2, while the core 6 is in mechanical connection with the circuit breaker 4 and the circuit breaker 4 as a result Leakage current detection of falling coil 5 is transferred to the circuit breaker off position by means of a return spring 7 engaging the core 6.
  • the energized, that is excited coil 5 of the electromagnet can be adjusted by taking the immersed core 6 and tensioning the return spring 7 from the circuit breaker off position into the circuit breaker on position by means of an actuating mechanism that can be actuated from the outside.
  • a pivot lever 9 is articulated, which is rotatably mounted between two articulation points on a switching shaft 10 for the circuit breaker 4 and works against a stop 11 when the core 6 emerges from the coil 5 , which prevents an arbitrary wide exit of the core 6.
  • the coil 5 is arranged on a slide 13 guided in the switch housing 12, which is effective in the circuit breaker on position by a return spring 14 and by a spring-loaded locking lever 15 is applied, wherein the locking lever 15 is pivotally mounted in the switch housing 12 and engages behind a locking cam 16 on the carriage 13 in the locking position.
  • the adjusting mechanism has a rotary knob 8 accessible outside the switch housing 12 with a pinion 17 on a bearing shaft, which meshes with a toothed rack 18 on the slide 13.
  • a rotary knob 8 accessible outside the switch housing 12 with a pinion 17 on a bearing shaft, which meshes with a toothed rack 18 on the slide 13.
  • an unlocking plunger 19 guided through the hollow bearing shaft is axially adjustable against spring action; the unlocking plunger 19 presses the locking lever 15 back into the unlocked position in the axially adjusted or depressed position.
  • the switch housing 12 with the residual current measuring device 2, the circuit breaker 4, the electromagnet and the actuating mechanism is designed as a module which can be inserted into the socket 1.

Landscapes

  • Breakers (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • Control Of Combustion (AREA)
  • Air Bags (AREA)
  • Emergency Protection Circuit Devices (AREA)
EP85110059A 1984-08-11 1985-08-09 Interrupteur de sûreté Withdrawn EP0171775A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19843429647 DE3429647A1 (de) 1984-08-11 1984-08-11 Steckdose, insbesondere in eine wandsteckdose einsteckbare steckdose mit stecker
DE3429647 1984-08-11

Publications (2)

Publication Number Publication Date
EP0171775A2 true EP0171775A2 (fr) 1986-02-19
EP0171775A3 EP0171775A3 (fr) 1987-04-29

Family

ID=6242874

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85110059A Withdrawn EP0171775A3 (fr) 1984-08-11 1985-08-09 Interrupteur de sûreté

Country Status (9)

Country Link
EP (1) EP0171775A3 (fr)
JP (1) JPS61107629A (fr)
KR (1) KR860002123A (fr)
AU (1) AU4597085A (fr)
DE (1) DE3429647A1 (fr)
DK (1) DK362885A (fr)
ES (1) ES8700496A1 (fr)
FI (1) FI853021L (fr)
NO (1) NO853152L (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0365274A2 (fr) * 1988-10-21 1990-04-25 Ericson Manufacturing Company Disjoncteur de défaut à la terre réarmable
EP1363947A2 (fr) * 2001-03-02 2003-11-26 Ortho-McNeil Pharmaceutical, Inc. Recepteur 4 active par la proteinase du cobaye et sa peptide d'activation

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT388625B (de) * 1987-11-19 1989-08-10 Bremel Hans Schutzeinrichtung fuer elektrische netzgeraete, insbesondere handgeraete
DE4124190A1 (de) * 1991-07-20 1993-01-21 Abb Patent Gmbh Verfahren zum ueberwachen und ausschalten eines wenigstens einen hin- und einen rueckleiter aufweisenden netzes aufgrund eines fehler- oder erdschlussstromes sowie schaltungsanordnung zur durchfuehrung des verfahrens
DE10146828A1 (de) * 2001-09-18 2003-04-24 Euchner Gmbh & Co Zuhaltesystem eines Sicherheitsschalters mit einem Lesekopf und einem Betätiger

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2256585A1 (de) * 1971-11-17 1973-05-30 Saparel Stromanschluss mit differentialschutz
DE2246845A1 (de) * 1972-09-23 1974-03-28 Bbc Brown Boveri & Cie Elektrische anschluss-schutzvorrichtung
US4079344A (en) * 1976-08-30 1978-03-14 General Electric Company Portable ground fault circuit interrupting device

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1965784U (de) * 1967-03-14 1967-08-10 Stotz Kontakt Gmbh Elektrische steckdose mit fehlerstromschutz.
DE7034601U (de) * 1970-09-17 1971-04-01 Kober Manpar Ag Fehlerstromschalter.

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2256585A1 (de) * 1971-11-17 1973-05-30 Saparel Stromanschluss mit differentialschutz
DE2246845A1 (de) * 1972-09-23 1974-03-28 Bbc Brown Boveri & Cie Elektrische anschluss-schutzvorrichtung
US4079344A (en) * 1976-08-30 1978-03-14 General Electric Company Portable ground fault circuit interrupting device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0365274A2 (fr) * 1988-10-21 1990-04-25 Ericson Manufacturing Company Disjoncteur de défaut à la terre réarmable
EP0365274A3 (fr) * 1988-10-21 1991-08-07 Ericson Manufacturing Company Disjoncteur de défaut à la terre réarmable
EP1363947A2 (fr) * 2001-03-02 2003-11-26 Ortho-McNeil Pharmaceutical, Inc. Recepteur 4 active par la proteinase du cobaye et sa peptide d'activation

Also Published As

Publication number Publication date
FI853021L (fi) 1986-02-12
ES546023A0 (es) 1986-10-16
KR860002123A (ko) 1986-03-26
DE3429647A1 (de) 1986-02-20
JPS61107629A (ja) 1986-05-26
DK362885A (da) 1986-02-12
EP0171775A3 (fr) 1987-04-29
FI853021A0 (fi) 1985-08-06
AU4597085A (en) 1986-02-13
DK362885D0 (da) 1985-08-09
ES8700496A1 (es) 1986-10-16
DE3429647C2 (fr) 1987-08-13
NO853152L (no) 1986-02-12

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Inventor name: HAFEMANN, KLAUS