EP0272457B1 - Magnetauslöser für einen selektiv arbeitenden Schalter - Google Patents

Magnetauslöser für einen selektiv arbeitenden Schalter Download PDF

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Publication number
EP0272457B1
EP0272457B1 EP87117118A EP87117118A EP0272457B1 EP 0272457 B1 EP0272457 B1 EP 0272457B1 EP 87117118 A EP87117118 A EP 87117118A EP 87117118 A EP87117118 A EP 87117118A EP 0272457 B1 EP0272457 B1 EP 0272457B1
Authority
EP
European Patent Office
Prior art keywords
armature
hinged
plunger
magnetic release
magnetic
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
EP87117118A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0272457A1 (de
Inventor
Jörg Berner
Markus Anliker
Willy Feller
Werner Dr. Ing. Breer
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.)
Swisslog Management AG
Original Assignee
Sprecher und Schuh 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 Sprecher und Schuh AG filed Critical Sprecher und Schuh AG
Publication of EP0272457A1 publication Critical patent/EP0272457A1/de
Application granted granted Critical
Publication of EP0272457B1 publication Critical patent/EP0272457B1/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
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/12—Automatic release mechanisms with or without manual release
    • H01H71/24—Electromagnetic mechanisms
    • H01H71/34—Electromagnetic mechanisms having two or more armatures controlled by a common winding
    • 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
    • H01H71/1081—Modifications for selective or back-up protection; Correlation between feeder and branch circuit breaker
    • 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
    • H01H71/12—Automatic release mechanisms with or without manual release
    • H01H71/24—Electromagnetic mechanisms
    • H01H71/2409—Electromagnetic mechanisms combined with an electromagnetic current limiting mechanism
    • 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
    • H01H71/12—Automatic release mechanisms with or without manual release
    • H01H71/24—Electromagnetic mechanisms
    • H01H71/2454—Electromagnetic mechanisms characterised by the magnetic circuit or active magnetic elements
    • 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
    • H01H71/12—Automatic release mechanisms with or without manual release
    • H01H71/24—Electromagnetic mechanisms
    • H01H71/2463—Electromagnetic mechanisms with plunger type armatures
    • 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
    • H01H71/74—Means for adjusting the conditions under which the device will function to provide protection
    • H01H71/7463—Adjusting only the electromagnetic mechanism

Definitions

  • the present invention relates to magnetic triggers for a selectively operating switch according to the preamble of patent claim 1.
  • Such a magnetic trigger is known for example from DE-A-28 54 568. This document also refers to the locations, tasks and modes of operation of selective protection devices.
  • a plunger armature is actuated by a magnetic coil, the extension of which acts on the movable contact and can open it.
  • the plunger is moved back into its rest position by the force of a spring; he strikes another extension, which transmits this movement to a spring-loaded lever arrangement.
  • a rod which is spring-loaded and rotatably fastened to this lever arrangement is thereby pivoted in front of the extension of the plunger. If a second current half-wave now flows through the coil during the dwell time of the rod before the plunger armature extension, the extension of the plunger arm hits the rod, which in turn triggers the switch lock.
  • a U-shaped spring-loaded lever arrangement encompasses the magnetic release.
  • the impact anchor When the impact anchor is actuated for the first time, its plunger strikes the lever arrangement.
  • the spring-loaded impact anchor runs back, a rearward extension moves the lever arrangement out of the area of action of the plunger, which can trigger a key switch in a subsequent second current half-wave.
  • a disadvantage of this magnetic release is that the contacts for limiting the current through the impact armature are not opened.
  • a magnetic trigger of a self-switch is known, the plunger of which acts directly on the movable contacts.
  • a hinged armature is arranged on the magnetic yoke, which in the rest position supports the latch lever of the key switch.
  • the hinged armature is released, which releases the latch lever of the key switch.
  • the magnetic field is strengthened so that the immersion armature is now also drawn into the coil and the contacts open.
  • Such a magnetic trigger is not suitable for selective switch triggering.
  • the object of the invention is to propose a magnetic release for a selectively operating switch, the plunger of which can act on the movable contacts with each response for the purpose of current limitation, these contacts can be opened very quickly and the selectivity can be set.
  • Multi-phase networks are several such interruption units arranged in parallel, wherein all magnetic releases 10 can act on a common switch lock 20.
  • the movable contacts 301 can be mechanically coupled to one another, so that when the magnetic release 10 responds, only one phase causes the opening of all contact systems 30.
  • a magnetic coil 101 is arranged in the magnetic release 10, through which the current to be interrupted flows and which is electrically connected in series with the movable contact 301. It is carried by an electrically insulating coil former 102, which accommodates a plunger armature 103 with a small clearance in a cylindrical bore.
  • a plunger 104 fastened to the plunger armature 103 penetrates the bore 105 of a core 106, which partially extends into the interior of the solenoid 101, on the side of which, remote from the solenoid 101, an iron sleeve 107 is fastened. To extend the bore 105, the iron closure 107 is also perforated, so that the plunger 104 can move back and forth practically without friction.
  • a return spring 110 which is arranged in the bore 105 and is supported on a shoulder 108 of the plunger 104 and is held at the other end by a screw cover 109, holds the plunger armature 103 in its rest position shown in FIG. 1.
  • the iron enclosure 107 surrounds the solenoid 101 in a U-shape;
  • the lower leg 111 shown in FIG. 1 protrudes above the coil body 102, while the upper leg 123 only extends into the central region of the magnet coil 101.
  • a release anchor 113 is rotatably mounted on a flange 112 on the upper leg 123.
  • a trigger linkage 115 is rotatably coupled to a first lever arm 114 of the trigger arm 113, which is designed as a double lever, and transmits the movements of the trigger arm 113 to the switching mechanism 20.
  • the end of the second lever arm 116 is designed as a pole shoe 117. The interaction of the pole piece 117 with a further pole piece 118 of a folding anchor 119 is described further below.
  • a retaining spring 120 Approximately in the middle of the second lever arm 116 engages a retaining spring 120, which is supported at the other end on an axis 401 fixed to the housing 40.
  • a pivot axis 122, on which the hinged armature 119 is rotatably mounted, is attached to a downwardly bent flag 121 of the lower leg 111.
  • the pivot axis 122 can be formed jointly for all phases, in this case it is firmly connected to the hinged armatures 119, while it is rotatably guided in holes in the flags 121.
  • the end region of the hinged anchor 119 which is distant from the pivot axis 122 is angled in an L-shape. In the rest position shown in FIG. 1, the end of the shorter L-leg lies against the upper leg 123 of the iron enclosure 107.
  • the surface of the unwound hinged anchor 119 directed against the release anchor 116 is designed as a pole shoe 118, it corresponding to a segment of a cylinder surface with the radius from the pivot axis 122 to the surface of the pole shoe 118.
  • the surface of the pole piece 117 of the release armature 113 is shaped accordingly, so that when the folding armature 119 is pivoted out, a gap with a constant width is formed between the pole pieces 117 and 118 (FIG. 2).
  • a bore 124 in the hinged anchor 119 clears a space into which a stop 125 of the housing 40 protrudes to approximately the center.
  • a second stop 126 limits the pivoting movement of the hinged anchor 119.
  • a hinged armature spring 126 which is fastened at one end to a guide 402 cast onto the housing 40 for a transmission plunger 127 and at the other end to a holding axis 128 of the hinged armature 119, holds the hinged armature 119 in its rest position under pretension.
  • the transmission plunger 127 consists of two partial plungers 129, 130, of which the head 131 of the first partial plunger 129 rests on the hinged anchor 119 and the end of the second partial plunger 130, which is more distant therefrom, cooperates with an extension 302 of the movable contact 301.
  • the mutually directed ends of the partial plungers 129, 130 are spaced apart by a compression spring 134 which engages around these ends and abuts against stops 132, 133.
  • the contact system 30 consists of a previously mentioned movable contact 301 and a fixed contact 303.
  • the fixed contact is bent in a U-shape, so that it together with an arc which arises when the contacts (301, 303) are separated and the movable contact 301 forms a current loop that drives the arc on a guardrail and in a quenching chamber, not shown.
  • the movable contact 301 is L-shaped and rotatably mounted in the area of the meeting of the two legs on an axis of rotation 305 supported on the housing 40.
  • the extension 302 already mentioned is also formed on the movable contact 301 in the vicinity of the axis of rotation 305.
  • a contact head 306 is attached to the shorter leg and, together with the contact head 307 attached to the fixed contact 303, forms the separable contact.
  • a contact pressure spring 309 supported on a housing extension 403 applies a force in the direction of the switched-on position to the movable contact 301.
  • the longer leg of the movable contact carries in its outer end region a driver axis 310, on which an actuating linkage 201 controlled by the switching lock 20 can engage in the direction of switching off.
  • FIG. 2 shows the same magnetic release 10 in the switched-off position.
  • FIG. 2 shows a selection device 134 for setting the selectivity.
  • an externally actuated adjusting screw 135 is rotatably supported, against which a lever 136 formed on the hinged armature 119 can strike.
  • the rest position of the hinged anchor can be adjusted using this selection device.
  • the adjusting screw 134 is turned completely inwards. The lever 136 applied to this adjusting screw holds the hinged anchor 119 against the force of the hinged anchor spring 126, not shown in this figure, in the working position.
  • the switching lock 20 is triggered each time the magnetic release 10 is activated, and thus a definite switch-off takes place even with the first short-circuit current half-wave.
  • the selectivity can be continuously selected by unscrewing the set screw 134 from the position specified above.
  • the magnetic release according to the invention according to FIGS. 1 and 2 works as follows.
  • the actuating lever 201 which in the switched-off position (FIG. 2) holds the movable contact 301 counter to the force of the contact pressure spring 309 in the open position, rotates clockwise, the movable contact 301 under the force of the contact pressure spring 309 in the Switched on position is moved (Fig. 1).
  • the set screw 135 of the selection device 134 is turned completely outward so that the end of the hinged anchor 119 is supported on the upper leg 123 of the iron enclosure 107.
  • the plunger armature is pulled into the magnetic coil 101, the plunger 104 engaging the stop lug 308 and striking the movable contact 301 against the force of the contact pressure spring 309 in an open position.
  • the arcing that arises between the contact heads 306, 307 is driven to the right into the quenching chamber (not shown) by the U-shaped current guide in FIGS. 1 and 2 mentioned above.
  • the arc voltage generated thereby reduces and limits the short-circuit current.
  • the switch lock 20 has not yet been triggered because the trigger anchor 113 has not yet been activated.
  • the opening movement of the movable contact 301 is transmitted through the extension 302 to the partial plunger 130 in contact with it.
  • the hinged armature 119 and the partial plunger 129 remain in their rest position because of the large mass and the compression spring 134. Only when the contacts have practically opened completely is the hinged anchor also pivoted into its working position according to FIG. 2.
  • the time delay between deflecting the hinged armature 119 into its working position and the response of the immersing armature 103 to the triggering current is set such that the hinged armature 119 is pivoted out in accordance with FIG. 2 during a second current half-wave.
  • the tripping armature 113 is actuated as early as the first current half-wave.
  • FIGS. 3 to 7 A second example of a magnetic release according to the invention is shown in FIGS. 3 to 7.
  • the same reference numerals and reference numerals as in FIGS. 1 and 2 are used for parts of this magnetic release having the same effect. Their mode of action is no longer discussed in more detail.
  • the difference to the magnetic release described above lies essentially in the fact that the magnetic flux in the rest position flows through the release armature 113 and the hinged armature 119 and is only deflected into the left leg 137 of the iron shroud 107 shown in FIG. 3 during the second current half-wave.
  • the release anchor 113 is pivotally mounted on a flag 138 on the right leg 139 of the iron enclosure 107.
  • the release linkage 115 is firmly connected to the release anchor 113, so that the movements of the release anchor 113 are transmitted as pivoting movements of the as release linkage 115 to the switch lock, not shown here.
  • the retaining spring 120 pulls the release anchor against a stop 404 formed on the housing.
  • the hinged anchor 119 which is rotatably mounted on an angled flag 121 of the left leg 137 and is preloaded with the hinged anchor spring 126 supported on the housing by a holder 405, is supported on the immersed anchor 103.
  • the hinged anchor in the area of contact with the plunger anchors is provided with a protruding deformation.
  • 7 shows the hinged anchor 119 in its view; likewise indicated are the plunger anchor 103 with the plunger anchor extension 141 passing through the fork-shaped cut-out anchor 119.
  • the contact line of the plunger anchor 103 with the deformation 140 is denoted by 142.
  • the plunger armature 103 is drawn into the coil against the force of the return spring 110.
  • the hinged anchor 119 can follow this movement until the deformation 140 is present on the left leg 137.
  • the overlap of the pole shoes 117, 118 which are of a simpler design here, is increased. Because of the much larger air gap between the release armature 113 and the left leg 137 of the iron enclosure 107, the magnetic yoke is closed by the right leg 139, the release armature 113 and the hinged armature 119; there is therefore no trigger command on the key switch.
  • the plunger armature 103 moves back under the force of the return spring 110 and strikes the deformation 140.
  • the overlapping of the pole pieces 117, 118 is resolved by the counterclockwise rotation of the folding armature 119.
  • the moment of inertia of the hinged armature 119 and the spring characteristic of the hinged armature spring 126 are coordinated with one another in such a way that the pole shoes 117, 118 can only overlap again after a possible second short-circuit current half-wave.
  • the tripping armature 113 attracted because when the hinged armature 119 is swung out, the magnetic flux commutates into the left leg 137.
  • the return spring 110 and the retaining spring 120 are replaced by a common spring 143. It is supported at one end on the release armature 113 and at the other end on an extension 144 of the hinged armature 119.
  • the hinged armature spring 126 and return spring 110 are replaced by a spring 145.
  • the spring 145 is attached to the plunger anchor extension 141 and at the other end to a lever 146 that is firmly connected to the folding anchor.
  • the selectivity of this magnetic release 10 is also adjustable.
  • the adjusting screw 135 of the selection device 134 also acts here on a lever 136 formed on the hinged armature. When the adjusting screw 135 is fully screwed in, the hinged armature is swiveled out of the overlap of the pole shoes 117, 118 and the tripping armature 113 is released with each current half-wave which Tripping current reached, tightened.
  • FIG. 6 shows a view of the left leg 137 of the iron casing 107 with the plunger anchor 103.
  • a tongue is designated by 147 which holds the plunger anchor 103 in the rest position against the force of the reset fields 110.
  • the proposed switch can optionally work according to different tripping characteristics. With selectivity switched off; The set screws 135 of the selection device 134 are screwed in completely; The contacts 301, 303 open to limit the current each time the current through the magnet coil 101 is so large that the plunger armature 103 is pulled into the coil against the force of the reset fields 110. Due to the characteristics of the retaining spring 120, the tripping current can be selected which should lead to the triggering of the switch lock 20.
  • the switching lock 20 is triggered in each case on the second short-circuit current half-wave, which follows within approximately 10 to 15 milliseconds after the first. A subordinate switch switches the first Short-circuit current half-wave successfully, then the switch lock 20 is not triggered.
  • a further actuation option for the hinged anchor 119 is shown in dashed lines in FIG. 3.
  • a two-armed, angled lever 148 which is rotatably mounted in the central region is supported at one end in the switched-on position by a further lug 149 on the movable contact 301. At the other end, it is acted upon by a spring 150.
  • the lever 148 In the switched-on position, the lever 148 is held in the position shown by the movable contact 301.
  • the contact opens the lever 148 is released; under the force of the spring 150, it moves the hinged armature 119 into the pivoted-out position against the force of the hinged armature spring 126.
  • the time delay between the opening of the contacts 306, 307 and the pivoting out of the hinged armature 119 is given here by the mass and spring relationships.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Breakers (AREA)
  • Electromagnets (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
EP87117118A 1986-12-23 1987-11-20 Magnetauslöser für einen selektiv arbeitenden Schalter Expired - Lifetime EP0272457B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH5203/86 1986-12-23
CH5203/86A CH672036A5 (no) 1986-12-23 1986-12-23

Publications (2)

Publication Number Publication Date
EP0272457A1 EP0272457A1 (de) 1988-06-29
EP0272457B1 true EP0272457B1 (de) 1992-01-15

Family

ID=4289664

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87117118A Expired - Lifetime EP0272457B1 (de) 1986-12-23 1987-11-20 Magnetauslöser für einen selektiv arbeitenden Schalter

Country Status (5)

Country Link
US (1) US4808952A (no)
EP (1) EP0272457B1 (no)
CH (1) CH672036A5 (no)
DE (1) DE3776115D1 (no)
FI (1) FI86781C (no)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101501806B (zh) * 2006-08-09 2011-12-07 西门子公司 开关单元

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8703170A (nl) * 1987-12-31 1989-07-17 Holec Syst & Componenten Elektromagnetische schakelaar.
NL8900007A (nl) * 1989-01-03 1990-08-01 Holec Syst & Componenten Stuurinrichting voor een elektrische schakelaar, alsmede een met deze stuurinrichting uitgeruste elektrische schakelaar.
US5089797A (en) * 1990-11-14 1992-02-18 Westinghouse Electric Corp. Circuit breaker with dual function electromagnetic tripping mechanism
US5414396A (en) * 1992-09-14 1995-05-09 Circuit Breaker Industries Limited Shunt trip device
US5495219A (en) * 1994-08-02 1996-02-27 General Electric Company Circuit breaker with improved magnetic trip response
US5670923A (en) * 1996-03-29 1997-09-23 General Electric Company Tripping device reset arrangement
FR2772981B1 (fr) * 1997-12-24 2000-01-21 Schneider Electric Sa Dispositif de declenchement selectif pour disjoncteur
DE102004044977B4 (de) * 2004-09-16 2007-03-29 Siemens Ag Auslöserelais für einen Fehlerstromschutzschalter
US7679478B2 (en) * 2006-07-13 2010-03-16 Siemens Industry, Inc. Lighting control module mechanical override
US7968813B2 (en) * 2006-11-10 2011-06-28 Siemens Industry, Inc. Switching device contact arm and armature plate
DE102008029188B4 (de) * 2008-06-19 2014-05-22 Siemens Aktiengesellschaft Tauchankerbaugruppe mit verschiedenen Auslösebereichen
DE102010004641B4 (de) * 2009-04-23 2021-02-18 Abb Ag Elektromagnetisches Auslösesystem und Installationsschaltgerät mit einem elektromagnetischen Auslösesystem
US8729984B2 (en) * 2011-06-06 2014-05-20 Rockwell Automation Technologies, Inc. Magnetic actuator with more than one air gap in series
CN104332365B (zh) * 2014-11-17 2016-08-17 法泰电器（江苏）股份有限公司 选择性保护式微型断路器的短延时脱扣机构
DE102014117035A1 (de) * 2014-11-20 2016-05-25 Eaton Industries (Austria) Gmbh Leitungsschutzschalter mit passiv beheiztem und auf einem Eisenrückschluss eines elektromagnetischen Auslösers wirkendem Bimetall-Element
US10312044B2 (en) 2014-12-05 2019-06-04 Omron Corporation Electromagnetic relay
JP2016110843A (ja) 2014-12-05 2016-06-20 オムロン株式会社 電磁継電器
JP6414453B2 (ja) 2014-12-05 2018-10-31 オムロン株式会社 電磁継電器
US10134551B2 (en) * 2016-09-21 2018-11-20 Astronics Advanced Electronic Systems Corp. Galvanically isolated hybrid contactor

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE854568C (de) * 1951-01-12 1952-11-06 Burger Eisenwerke Ges Mit Besc Kohleherd oder Kochofen mit ueber der Feuerung angeordnetem Back- bzw. Bratofen
DE2115030A1 (de) * 1971-03-29 1972-10-05 Bbc Brown Boveri & Cie Selbstschalter
DE2854568C2 (de) * 1978-12-18 1982-09-02 Brown, Boveri & Cie Ag, 6800 Mannheim Selektivschutzvorrichtung für einen strombegrenzenden Schalter
US4276526A (en) * 1980-01-28 1981-06-30 General Electric Company Miniature current limiting circuit breaker
DE3132194A1 (de) * 1981-08-14 1983-03-03 Horst Dipl.-Ing. 6900 Heidelberg Drubig Elektro-magnetischer ausloeser
DE3347121A1 (de) * 1983-12-22 1985-07-11 Siemens AG, 1000 Berlin und 8000 München Schalter mit einem selektiv arbeitenden ausloeser
US4697163A (en) * 1986-03-27 1987-09-29 Westinghouse Electric Corp. Circuit breaker with impact trip delay

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101501806B (zh) * 2006-08-09 2011-12-07 西门子公司 开关单元

Also Published As

Publication number Publication date
EP0272457A1 (de) 1988-06-29
DE3776115D1 (de) 1992-02-27
CH672036A5 (no) 1989-10-13
FI875558A0 (fi) 1987-12-17
FI875558A (fi) 1988-06-24
FI86781B (fi) 1992-06-30
FI86781C (fi) 1992-10-12
US4808952A (en) 1989-02-28

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