EP0525137B1 - Schutzschaltgerät zur differenzstrom- und unterspannungsauslösung - Google Patents

Schutzschaltgerät zur differenzstrom- und unterspannungsauslösung Download PDF

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Publication number
EP0525137B1
EP0525137B1 EP92903078A EP92903078A EP0525137B1 EP 0525137 B1 EP0525137 B1 EP 0525137B1 EP 92903078 A EP92903078 A EP 92903078A EP 92903078 A EP92903078 A EP 92903078A EP 0525137 B1 EP0525137 B1 EP 0525137B1
Authority
EP
European Patent Office
Prior art keywords
switching device
coupling member
protective switching
housing
contact
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
EP92903078A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0525137A1 (de
Inventor
Herbert Franz
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.)
Heinrich Kopp GmbH and Co KG
Original Assignee
Heinrich Kopp GmbH and Co KG
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 Heinrich Kopp GmbH and Co KG filed Critical Heinrich Kopp GmbH and Co KG
Publication of EP0525137A1 publication Critical patent/EP0525137A1/de
Application granted granted Critical
Publication of EP0525137B1 publication Critical patent/EP0525137B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • H01H83/04—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 with testing means for indicating the ability of the switch or relay to function properly
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/50—Manual reset mechanisms which may be also used for manual release
    • H01H71/58—Manual reset mechanisms which may be also used for manual release actuated by push-button, pull-knob, or slide
    • 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
    • H01H83/12—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by voltage falling below a predetermined value, e.g. for no-volt protection

Definitions

  • the invention relates to a protective switching device for integration into a housing of an electrical connector or a mobile line step switch, wherein the protective switching device can be triggered both by differential current and by undervoltage.
  • protective circuit devices of this type are connected as ballasts via one or more sensor lines to additional electrodes within the consumer. This fact requires a special connection cable between the two parts and only triggers if a fault current flows through the sensor line (s). These devices usually do not have undervoltage and free tripping and the ability to check their functionality.
  • a residual current protective switching device designed as a connector for an electrical consumer which contains a switch contact arrangement which can be actuated all-pole by hand using a push button via a switching mechanism and can be triggered electromagnetically by means of electronic residual current and undervoltage monitoring. Furthermore, the device has a test facility to check its functionality.
  • this known ballast uses a relatively complicated switch-on and release mechanism and accordingly has to be manufactured and assembled in a complex manner.
  • the construction of the device requires the provision of a special housing.
  • a protective switching device of the type mentioned in which a coupling member designed as a one-armed lever is articulated off-center by means of an operating handle, and can be guided through a locking opening in the contact carrier for switching on, the coupling member also a bevelled latching hook is pivoted against a slope formed on the contact carrier for passage through the latching opening, and the switch-on position is secured by a compression spring which is arranged between the coupling member and the contact carrier.
  • a lateral triggering device is provided with a plunger anchor which, when triggered, pivots the coupling member out of engagement with the contact carrier.
  • a protective switching device in which the contact carrier is pivotally mounted horizontally between two springs under prestress in the switch-off direction, the contact lever from its switch-off position, in which it is held by a lateral holding profile, by means of an electromagnetic actuable piston, which engages the holding profile, reaches its off position under the action of a compression spring.
  • the invention has for its object to develop a protective switching device of the type mentioned in such a way that a compact simplified and reliable working structure is achieved.
  • the switching technology of a protective switching device is based on a coupling member, which is adjustable on the operator side and is adjustable between a fixed housing stop and a pressure spring-loaded plunger armature of the electromagnetic release element, which acts on a contact carrier which is adjustable in the opposite direction via a corresponding latching profile.
  • the coupling member which is designed as a two-armed pivoting lever, is pivotable about an axis in the extensions of the operating handle, which is supported on the housing against a helical compression spring.
  • This coupling member is preferably provided in the actuating direction with a resiliently molded stop bracket and has a recess corresponding to the contact carrier cross section in the opposite direction above the pivot bearing point.
  • the switch-on and tripping technology is preferably combined with the contact carrier to form a component, the housing of which carries the electromagnetic plunger system laterally below the above-active lever arm of the coupling member.
  • the electronic device of the protective switching device it is preferably arranged together with the fixed contact pieces of the switching path, an auxiliary contact arrangement for the power supply of the device and the test button contacts on a printed circuit board, which as a further component with the above-mentioned switch-on and tripping mechanism are connected with the switching contact and with the connections the excitation winding of the electromagnetic plunger anchor system can be soldered stabilizing.
  • the assembled components are installed, for example, in the housing of a conventional connector and provided with a cover penetrated by the operating handles of the protective switching device, there is also the possibility of additionally soldering the printed circuit board arranged above the switching mechanism by soldering it to the correspondingly extended connecting lugs of the connector pins inside to hold the connector housing.
  • the operating handle acts through a compression spring loaded 1 manually operated switching mechanism of the two-pole protective switching device via a coupling member 4 which is elastically supported on the one hand on a fixed stop 2 of a housing part 3 and on the other hand on an armature 6 of an electromagnetic release element which is immersed in a field coil 5 against spring force.
  • the coupling member 4, which is adjustable with the operating handle 1 is pivotably mounted on two downward extensions of the same about an axis 7. In its direction of actuation, the coupling member 4 is provided with a stop bracket 8 molded onto it as a spring element.
  • the adjustable and pivotable coupling member 4 is provided “on the relief side” with a curve profile, in the conforming recess 11 of which the contact carrier 9 can engage in the non-pivoted state of the coupling member 4.
  • the pivoting of the same as a result of manual actuation up to the stop 2 and when the plunger is energized has a latch below the contact carrier 9 and, in the case of manual relief of the operating handle 1, the adjustment of the latter and its contact pieces 10 against fixed contact pieces 13 arranged on the underside of a printed circuit board 12.
  • the printed circuit board 12 also carries the electronics required for residual current monitoring, such as a specially illustrated summation current transformer 14 etc., and also an auxiliary contact arrangement 15 (according to FIG. 5) for the power supply which is closed by the coupling element 4 of the switching mechanism in the course of the activation operation of the protective switching device, and a test contact arrangement 16 to be actuated from the outside in order to be able to check its functionality.
  • the electronics required for residual current monitoring such as a specially illustrated summation current transformer 14 etc.
  • an auxiliary contact arrangement 15 for the power supply which is closed by the coupling element 4 of the switching mechanism in the course of the activation operation of the protective switching device, and a test contact arrangement 16 to be actuated from the outside in order to be able to check its functionality.
  • the switching mechanism inserted from above into an open connector housing 17 is positively inserted into the upper part of the connector housing 17 by means of its housing part 3 and thereby extends with the magnetic yoke of the excitation coil 5 of the plunger armature system firmly attached to the housing part 3 between the extended connecting lugs of the outwardly penetrating connector pins 18 down to the bottom of the (contoured) plug-in part on the connector housing 17.
  • the circuit board 12 connected to a connecting cable 19 of the protective switching device and the monitoring electronics carried by it fit into the upper part of the connector housing 17 and arrives with the fixed contact pieces 13 exactly over the movable contact pieces 10 of the switching path on both sides of the upwardly free-standing operating handle 1, and with the auxiliary contact arrangement 15 (according to FIG. 5) via the switch cam 20 provided therefor Lever arm of the coupling member 4 in the direction of the submersible anchor system.
  • the same can then be soldered to the connections of the excitation coil 5 reaching through it in contact bores and to connecting lugs of plug pins 18.
  • the fully assembled protective switching device can then be closed with a cover cap 21 which overlaps the opening edge of the plug housing 17 and which latches thereon and which is penetrated at the end by the operating handle 1 and a pushbutton 22 acting on the test contact arrangement 16 on the top of the printed circuit board 12.
  • the protective switching device for the connected consumer is ready to be switched on after plugging it into a power supply.
  • this adjusts the coupling member 4 pivotably mounted on it in the actuating direction and thus initially closes the auxiliary contact arrangement 15 for the power supply of the monitoring electronics of the device.
  • the coupling member 4 rotates around it when the operating handle 1 is pressed in further Bearing shaft 7 against the plunger armature 6 inside the excitation coil 5, so that it finally hits the permanently installed magnetic core under the pressure of an armature spring.
  • the procedure described above is simply reversed. Accordingly, under the pressure of its anchor spring, the plunger 6 swings the coupling member 4, which returns to the starting position with the self-resilient operating handle 1, immediately into its non-stop position and in this way prevents its latching with the contact carrier 9. When the end position is reached, the coupling member 4 then interrupts Auxiliary contact arrangement 15 and thus also switches off the monitoring electronics from the supply network.
  • the excitation coil 5 is supplied with voltage via the auxiliary contact arrangement 15, so that its plunger armature 6 remains attracted.
  • the suspension of the coupling member 4 through its stop bracket 8 first comes into effect and pivots the same into the latching position with the contact carrier 9, so that the latter is carried along by the more spring-loaded operating handle 1 against the force of the weaker contact opening spring until its meet two contact pieces 10 on the fixed contact pieces 13 on the underside of the printed circuit board 12, whereby the protective switching device for the consumer connected via the cable 19 is switched on and ready for operation.
  • the electronic circuit arrangement carried by the printed circuit board 12 is activated by a partial current flowing to earth via the summation current transformer 14, whereby the power supply to the excitation coil 5 of the plunger armature system is interrupted and the latch between the coupling element 4 and the contact carrier 9 is opened by the latter .
  • the contact opening spring presses the contact carrier 9 back into the recess 11 of the curve profile on the side of the coupling member 4 and hereby opens the switching contact path 10/13, while the operating handle 1 moves in the opposite direction back into the switch-off position.
  • the version of the protective switching device presented here as an example can also be equipped with a 3-pin connection and round or flat pins of another connector system instead of the 2-pin connection arrangement.

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  • Breakers (AREA)
EP92903078A 1991-02-19 1992-01-25 Schutzschaltgerät zur differenzstrom- und unterspannungsauslösung Expired - Lifetime EP0525137B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4105040A DE4105040C1 (enrdf_load_stackoverflow) 1991-02-19 1991-02-19
DE4105040 1991-02-19
PCT/DE1992/000053 WO1992015110A1 (de) 1991-02-19 1992-01-25 Schutzschaltgerät zur differenzstrom- und unterspannungsauslösung

Publications (2)

Publication Number Publication Date
EP0525137A1 EP0525137A1 (de) 1993-02-03
EP0525137B1 true EP0525137B1 (de) 1996-04-24

Family

ID=6425342

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92903078A Expired - Lifetime EP0525137B1 (de) 1991-02-19 1992-01-25 Schutzschaltgerät zur differenzstrom- und unterspannungsauslösung

Country Status (5)

Country Link
US (1) US5347248A (enrdf_load_stackoverflow)
EP (1) EP0525137B1 (enrdf_load_stackoverflow)
AU (1) AU655962B2 (enrdf_load_stackoverflow)
DE (1) DE4105040C1 (enrdf_load_stackoverflow)
WO (1) WO1992015110A1 (enrdf_load_stackoverflow)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2590760Y2 (ja) * 1992-10-15 1999-02-17 ホシデン株式会社 漏電遮断機構付き差込プラグ
US6052047A (en) * 1997-05-28 2000-04-18 Eaton Corporation Circuit interrupter with covered accessory case, adjustable under voltage relay, self-retaining collar and one-piece rail attachment
US6771152B2 (en) 2001-03-21 2004-08-03 Leviton Manufacturing Co., Inc. Pivot point reset lockout mechanism for a ground for fault circuit interrupter
US7098761B2 (en) * 1998-08-24 2006-08-29 Leviton Manufacturing Co., Inc. Reset lockout mechanism and independent trip mechanism for center latch circuit interrupting device
US6944001B2 (en) * 1998-08-24 2005-09-13 Leviton Manufacturing Co., Inc. Circuit interrupting system with independent trip and reset lockout
US6437700B1 (en) 2000-10-16 2002-08-20 Leviton Manufacturing Co., Inc. Ground fault circuit interrupter
US6982856B2 (en) * 2001-03-21 2006-01-03 Leviton Manufacturing Co., Inc. GFCI with reset lockout
US6246558B1 (en) * 1998-08-24 2001-06-12 Leviton Manufacturing Company Circuit interrupting device with reverse wiring protection
US7400477B2 (en) 1998-08-24 2008-07-15 Leviton Manufacturing Co., Inc. Method of distribution of a circuit interrupting device with reset lockout and reverse wiring protection
US7049910B2 (en) * 1998-08-24 2006-05-23 Leviton Manufacturing Co., Inc. Circuit interrupting device with reset lockout and reverse wiring protection and method of manufacture
US6040967A (en) * 1998-08-24 2000-03-21 Leviton Manufacturing Co., Inc. Reset lockout for circuit interrupting device
US6288882B1 (en) 1998-08-24 2001-09-11 Leviton Manufacturing Co., Inc. Circuit breaker with independent trip and reset lockout
US6864769B2 (en) * 2001-03-19 2005-03-08 Leviton Manufacturing Co., Inc. Lockout mechanism for residual current devices
US6937451B2 (en) 2001-03-21 2005-08-30 Leviton Manufacturing Co., Inc. ALCI with reset lockout and independent trip
US7599176B1 (en) * 2002-04-08 2009-10-06 Network Appliance, Inc. Apparatus for providing visual indication of engagement of a drive received within a drive cage
US7455538B2 (en) 2005-08-31 2008-11-25 Leviton Manufacturing Co., Inc. Electrical wiring devices with a protective shutter
DE102006031389A1 (de) * 2006-07-07 2008-01-10 Danfoss Bauer Gmbh Anschlußleitung
US8444309B2 (en) 2010-08-13 2013-05-21 Leviton Manufacturing Company, Inc. Wiring device with illumination
US8526144B2 (en) 2011-03-31 2013-09-03 Leviton Manufacturing Company, Inc. Reset lockout with grounded neutral test

Family Cites Families (13)

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Publication number Priority date Publication date Assignee Title
DE8401104U1 (de) * 1984-04-12 Heinrich, Hans Tragvorrichtung für Sport- und/oder Freizeitartikel zur Befestigung an einem Geländefahrzeug
DE1137114B (de) * 1961-04-20 1962-09-27 Licentia Gmbh Mechanismus fuer Selbstschalter
US4010432A (en) * 1975-10-22 1977-03-01 General Electric Company Electrical receptacle equipped with ground fault protection
US4209762A (en) * 1978-09-08 1980-06-24 Westinghouse Electric Corp. Ground fault receptacle reset button
US4567456A (en) * 1983-06-13 1986-01-28 Technology Research Corporation Resettable circuit closing device
DE3341874C1 (de) * 1983-09-08 1984-07-19 Schulte-Elektrotechnik GmbH & Co KG, 5880 Lüdenscheid Schalteranordnung mit Nullspannungsauslösung
PT79611B (en) * 1983-12-05 1986-08-05 Leviton Manufacturing Co Shock hazard protection system
GB2169749A (en) * 1985-01-12 1986-07-16 Ashley Accessories Ltd Electrical outlet accessories with incorporated automatic circuit breaker
ATE44192T1 (de) * 1985-01-28 1989-07-15 Kopp Gmbh & Co Kg Heinrich Als anschlussstecker ausgebildetes fischutzschaltger|t.
US4774484A (en) * 1985-04-09 1988-09-27 Square D Company Auxiliary electrical contact for electromagnetic contactor
FR2582146A1 (fr) * 1985-05-14 1986-11-21 Osmond Max Dispositif d'alimentation electrique a disjoncteur et prise electrique incorporant ce dispositif
DE3937546A1 (de) * 1989-11-10 1991-05-16 Kopp Gmbh & Co Kg Heinrich Mobiles schutzschaltgeraet mit differenzstrom- und unterspannungsausloesung
US5148344A (en) * 1990-08-06 1992-09-15 Tower Manufacturing Corporation Appliance leakage current interrupter

Also Published As

Publication number Publication date
AU1175992A (en) 1992-09-15
DE4105040C1 (enrdf_load_stackoverflow) 1992-09-24
EP0525137A1 (de) 1993-02-03
US5347248A (en) 1994-09-13
WO1992015110A1 (de) 1992-09-03
AU655962B2 (en) 1995-01-19

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