EP1001444A2 - Überstromauslöser - Google Patents
Überstromauslöser Download PDFInfo
- Publication number
- EP1001444A2 EP1001444A2 EP98122193A EP98122193A EP1001444A2 EP 1001444 A2 EP1001444 A2 EP 1001444A2 EP 98122193 A EP98122193 A EP 98122193A EP 98122193 A EP98122193 A EP 98122193A EP 1001444 A2 EP1001444 A2 EP 1001444A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- core
- armature
- overcurrent release
- snap
- support body
- 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- Withdrawn
Links
- 230000001681 protective effect Effects 0.000 claims abstract description 4
- 238000013016 damping Methods 0.000 claims description 4
- 230000008719 thickening Effects 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 description 5
- 230000001960 triggered effect Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
Images
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
- H01H71/40—Combined electrothermal and electromagnetic mechanisms
-
- 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
- H01H71/40—Combined electrothermal and electromagnetic mechanisms
- H01H2071/407—Combined electrothermal and electromagnetic mechanisms the thermal element being heated by the coil of the electromagnetic 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 invention relates to an overcurrent release for electrical Protective switching devices, in particular miniature circuit breakers or Motor protection switch, with electromagnetic and thermoelectric Release.
- the invention is accordingly based on the object of an overcurrent release of the type mentioned at the beginning, that for his critical area between the seven and ten times the nominal current the intrinsic safety with low constructive Effort is guaranteed.
- the response time is thus advantageous according to the invention the bimetallic disc in the critical range between the seven to twelve times the rated current using the magnet armature so greatly shortened that for the intrinsic safety of the switchgear required thermal protection is guaranteed.
- the magnetic force of the current-carrying coil is used, to directly over the anchor and a tubular actuator to apply the bimetallic snap disc.
- the bimetallic disc acts as an anchor restraint spring the anchor mechanically up to the magnetic response value of the Circuit breaker holds.
- the armature presses over the tubular actuator the bimetallic disc above its snap point, that the plunger unlocks the circuit breaker of the circuit breaker can.
- the armature presses depending on Amount of current more or less on the bimetallic snap disc with the effect that in the critical area between snapping the seven and ten times the rated current heated disk is accelerated via the support body.
- the snap time of the snap disk is shortened so that the circuit breaker switches off quickly and thus intrinsically safe.
- the bimetallic snap disc For the function of the overcurrent release according to the invention on the one hand there is an intimate connection of the bimetallic snap disc with the support body, for example via a elastic o-ring, in order for electrothermal release good heat transfer from the support body to the snap disc guarantee.
- the distance between anchor and Core armature air gap
- the bimetallic disc it is also important that the distance between anchor and Core (armature air gap) must not be larger than the snap stroke the bimetallic disc to ensure that, for example at high short-circuit currents the armature the snap disc not mechanically deformed.
- Tappet actuator is preferably through the bore of the Core guided and preferably designed as a tube, which preferably loosely surrounds the plunger. This results in a extraordinarily compact design of the tappet actuator with optimal power transmission and introduction into the Snap disc.
- the core is adjustable in position in relation to the armature in the support body attached, which provides an additional adjustment for the armature air gap.
- the snap disk is preferred in the receiving end of the support body applied to the edge by means of an elastic O-ring attached, the O-ring preferably by means of a lid-shaped cap is pressed against the snap disc, wherein the cap has a central tappet passage opening.
- the hole in the core is according to a preferred embodiment the invention with a guide portion for the tappet actuator, preferably in the form of a pipe guide section, and a comparatively larger diameter section formed, the core itself preferably close to that Receiving end of the support body is attached to a compact To enable overcurrent release design.
- the anchor has a recess on the back for receiving a Stop end supporting vibration damping spring.
- FIG 10 A section through an overcurrent release is shown schematically in FIG 10 shown for protective switching devices, the one Has heat-conductive tubular support body 11, which is wrapped with a coil 12.
- the support body 11 has a molded stop end 13 and an opposite one extended receiving end 14 for the system and radial Storage of a bimetallic snap disc 15.
- Anchor 20 arranged, between the core 16 and the stop end 13 of the support body 11 a slidably mounted in the tubular support body 11
- Anchor 20 arranged, between the core 16 and the armature 20 a distance s is formed as an armature air gap.
- the armature 20 has a rear recess 21 for receiving one supported at the stop end 13 Vibration damping spring 22.
- This vibration damping spring 22 has only the function, a disturbing noise of the armature 20 due to the mains frequency, however, does not interfere functionally with the other mode of action of the overcurrent release 10.
- the receiving end 14 of the support body 11 is by means of a cap 23 closed, which, like the supporting body 11, the core 16 and the armature 20 is rotationally symmetrical.
- the Cap 23 has a central guide opening 24 for guiding of a plunger 25 which can be disengaged to the left in FIG. 1 rear end of the plunger 25 protrudes through a central opening 31 of the snap disc 15 and by a tubular actuator 26 slidably mounted in the direction of the anchor 20th
- the tubular actuator 26 is in its outside in the guide groove 18 of the core 16 rotatably supported, lies loosely with its one end on the armature 20 and with its at the other end of the snap disc 15.
- a thickening 27 on the plunger 25 is arranged according to Figure 1 so that the Bimetallic disc 15 between the thickening 27 and the end of the tubular control member 26 is located.
- the stop end 13 also has an opening 28 through which the overcurrent release can also be triggered manually by pressing in the armature 20 is.
- the distance s between the core 16 and the armature 20 is such chosen to be at least half and at most the whole Snap stroke of the snap disk 15 corresponds to one hand to ensure adequate functioning and on the other hand mechanical damage to the snap disk 15 when triggered to avoid by the anchor 20.
- the snap disk 15 is ready for operation in the receiving section 14 Condition recorded and maintained in such a way that them in lateral contact with the angled support body section 29 pressed by an elastic O-ring 30 is, which in turn is acted upon by the cap 23.
- Figure 2 shows the overcurrent release 10 by electromagnetic Trip, wherein the armature 20 abuts the core 16 and the snap disc 15 through the tubular actuator 26 was brought into movement in the snap division, in the plunger 25 reaches its disengaged release position.
- FIG 3 shows the overcurrent release 10 after electrothermal Triggered solely on the basis of the action of the snap disc 15, which when snapping to the thickened portion 27 of the Tappet 25 attacks and this in the disengaged position shown brings.
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Breakers (AREA)
Abstract
Description
- Fig. 1
- eine Schnittansicht durch ein Ausführungsbeispiel eines Überstromauslösers in seiner Bereitschaftsstellung;
- Fig. 2
- eine Schnittansicht des Überstromauslösers von Figur 1 nach elektromagnetischer Auslösung; und
- Fig. 3
- eine Schnittansicht des Überstromauslösers von Figur 1 nach elektrothermischer Auslösung.
Claims (10)
- Überstromauslöser für Schutzschaltgeräte, insbesondere Leitungsschutzschalter oder Motorschutzschalter mit elektromagnetischer und thermoelektrischer Auslösung, bestehend auseinem wärmeleitenden rohrförmigen und mit einer Spule (12) umwickelten Tragkörper (11), der ein Anschlagende (13) und ein gegenüberliegendes erweitertes Aufnahmeende (14) für die Anlage und die radiale Lagerung einer Bimetall-Schnappscheibe (15) mit mittiger Bohrung (31) aufweist,einem in dem Tragkörper (11) befestigten Kern (16) mit einer zentralen Bohrung (18, 19),einem in dem Tragkörper (11) zwischen dessen Anschlagende (13) und dem Kern (16) bewegbaren Anker (20), undeinem Stößel (25), der sich durch die Bohrung (31) in der Schnappscheibe (15) und die Bohrung (18, 19) im Kern (16) in Richtung des Ankers (20) erstreckt, wobei der Stößel (26) thermoelektrisch mittels der Schnappscheibe (15) über eine Verdickung (27) und elektromagnetisch mittels des Ankers (20) über ein Stößel-Betätigungsorgan (26) ausrückbar ist, und wobei im betriebebereiten Zustand der Abstand (s) zwischen Anker (20) und Kern (16) höchstens dem Schnapphub der Schnappscheibe (15) entspricht.
- Überstromauslöser nach Anspruch 1,
dadurch gekennzeichnet,daß das Stößel-Betatigungsorgan (26) durch die Bohrung (18, 19) des Kerns (16) geführt ist. - Überstromauslöser nach Anspruch 1 oder 2,
dadurch gekennzeichnet,daß das Stößel-Betätigungsorgan (26) als Rohr ausgebildet ist. - Überstromauslöser nach Anspruch 3,
dadurch gekennzeichnet,daß das Rohr (26) den Stößel (25) lose umgibt. - Überstromauslöser nach einem der vorangehenden Ansprüche,
dadurch gekennzeichnet,daß der Kern (16) in dem Tragkörper (11) über ein Gewinde (17) in seiner Lage bezüglich des Ankers (20) einstellbar befestigt ist. - Überstromauslöser nach einem der vorangehenden Ansprüche,
dadurch gekennzeichnet,daß die Schnappscheibe (15) in dem Aufnahmeende (14) des Tragkörpers (11) mittels eines elastischen O-Rings (30) randseitig beaufschlagt ist. - Überstromauslöser nach Anspruch 6,
dadurch gekennzeichnet,daß der O-Ring (30) mittels einer Kappe (23) an die Schnappscheibe (15) gepreßt ist, die in dem Aufnahmeende (14) befestigt ist und die eine mittige Stößel-Durchtrittsöffnung (24) aufweist. - Überstromauslöser nach einem der vorangehenden Ansprüche,
dadurch gekennzeichnet,daß die Bohrung im Kern (16) mit einem Stößel-Betätigungsorgan-Führungsabschnitt (18) und einem vergleichsweise durchmessergrößerem Abschnitt (19) gebildet ist. - Überstromauslöser nach einem der vorangehenden Ansprüche,
dadurch gekennzeichnet,daß der Kern (16) nahe dem Aufnahmeende (14) des Tragkörpers (11) befestigt ist. - Überstromauslöser nach einem der vorangehenden Ansprüche,
dadurch gekennzeichnet,daß der Anker (20) eine rückseitige Ausnehmung (21) für die Aufnahme einer sich am Anschlagende (13) abstützenden Schwingungsdämpfungsfeder (22) aufweist.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19847155 | 1998-10-13 | ||
DE19847155A DE19847155A1 (de) | 1998-10-13 | 1998-10-13 | Überstromauslöser |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1001444A2 true EP1001444A2 (de) | 2000-05-17 |
EP1001444A3 EP1001444A3 (de) | 2001-04-04 |
Family
ID=7884316
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98122193A Withdrawn EP1001444A3 (de) | 1998-10-13 | 1998-11-27 | Überstromauslöser |
Country Status (3)
Country | Link |
---|---|
US (1) | US6154115A (de) |
EP (1) | EP1001444A3 (de) |
DE (1) | DE19847155A1 (de) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2999014A1 (fr) * | 2012-12-03 | 2014-06-06 | Schneider Electric Ind Sas | Actionneur a shunt magnetothermique, en particulier pour le declenchement de disjoncteur |
US10283301B2 (en) | 2014-11-12 | 2019-05-07 | Schneider Electric Industries Sas | Electromagnetic actuator and circuit breaker comprising such an actuator |
Families Citing this family (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10324390A1 (de) * | 2003-05-30 | 2004-12-23 | Abb Patent Gmbh | Elektrische Auslöseeinrichtung für einen elektrischen Schalter |
US8502636B2 (en) * | 2006-06-07 | 2013-08-06 | Souriau | By-pass of an electrical component |
JP2009543296A (ja) * | 2006-06-30 | 2009-12-03 | モレックス インコーポレイテド | 低背型ラッチコネクタ及びラッチを外すためのプルタブ |
US7869169B2 (en) * | 2006-07-14 | 2011-01-11 | William Davison | Method and system of current transformer output magnitude compensation in a circuit breaker system |
US7791849B2 (en) * | 2006-07-14 | 2010-09-07 | William Davison | Redundant trip activation |
US8154373B2 (en) * | 2006-07-14 | 2012-04-10 | Schneider Electric USA, Inc. | Circuit breaker-like apparatus with combination current transformer |
US7697250B2 (en) * | 2006-07-14 | 2010-04-13 | William Davison | Switch-to-trip point translation |
US7869170B2 (en) * | 2006-07-14 | 2011-01-11 | Susan Jean Walker Colsch | Method and system for time synchronized trip algorithms for breaker self protection |
US7788055B2 (en) | 2006-07-14 | 2010-08-31 | Square D Company | Method and system of calibrating sensing components in a circuit breaker system |
US7592888B2 (en) * | 2006-07-14 | 2009-09-22 | Jason Robert Colsch | Low cost user adjustment, resistance to straying between positions, increased resistance to ESD, and consistent feel |
US7859802B2 (en) * | 2006-07-14 | 2010-12-28 | William Davison | Burden resistor temperature compensation algorithm |
US7683586B2 (en) * | 2006-07-14 | 2010-03-23 | Davison William C | Method and system of fault powered supply voltage regulation |
US7550939B2 (en) * | 2006-07-14 | 2009-06-23 | William Davison | Redundant instantaneous trip detection |
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 |
DE102016203508B4 (de) * | 2016-03-03 | 2021-06-10 | Siemens Aktiengesellschaft | Auslösevorrichtung und elektromechanisches Schutzschaltgerät |
SI25460B (sl) * | 2017-06-06 | 2021-11-30 | Nela Razvojni Center Za Elektroindustrijo In Elektroniko, D.O.O. | Izpopolnjen termično-magnetni prožilnik varnostnega električnega stikala |
DE102019112581B4 (de) * | 2019-05-14 | 2020-12-17 | Marcel P. HOFSAESS | Temperaturabhängiger Schalter |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3637275C1 (en) * | 1986-11-03 | 1988-05-05 | Flohr Peter | Overcurrent trip device for protection switching apparatuses |
US4965543A (en) * | 1988-11-16 | 1990-10-23 | Merin Gerin | Magnetic trip device with wide tripping threshold setting range |
DE29502573U1 (de) * | 1995-02-16 | 1995-04-20 | Heinrich Kopp Ag, 63796 Kahl | Schaltgerät, insbesondere Leitungsschutzschalter |
DE19629062A1 (de) * | 1996-07-18 | 1998-01-29 | Kopp Heinrich Ag | Überstromauslöser für Schutzschaltgeräte zur selektiven Staffelung in Stromkreisen |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4288769A (en) * | 1979-11-28 | 1981-09-08 | General Electric Company | Ambient temperature responsive trip device for static trip circuit breakers |
US4288770A (en) * | 1979-11-28 | 1981-09-08 | General Electric Company | Thermal override for static trip circuit breakers |
US4641001A (en) * | 1984-06-15 | 1987-02-03 | Mitsubishi Denki Kabushiki Kaisha | Circuit interrupter |
JPH0119315Y2 (de) * | 1984-09-19 | 1989-06-05 | ||
NL8900007A (nl) * | 1989-01-03 | 1990-08-01 | Holec Syst & Componenten | Stuurinrichting voor een elektrische schakelaar, alsmede een met deze stuurinrichting uitgeruste elektrische schakelaar. |
FR2661776B1 (fr) * | 1990-05-04 | 1996-05-10 | Merlin Gerin | Declencheur instantane d'un disjoncteur. |
US5107235A (en) * | 1991-01-24 | 1992-04-21 | Square D Company | Current driven actuator with coupled thermal and magnetic actuating elements |
DE4313207A1 (de) * | 1993-04-22 | 1994-10-27 | Kopp Heinrich Ag | Leitungsschutzschalter |
DE4406670C3 (de) * | 1994-03-01 | 1999-09-09 | Kopp Heinrich Ag | Leitungsschutzschalter |
DE19750875C1 (de) * | 1997-11-18 | 1999-03-18 | Hans Arnhold | Überstromauslöser für Schutzschalter |
-
1998
- 1998-10-13 DE DE19847155A patent/DE19847155A1/de not_active Withdrawn
- 1998-11-27 EP EP98122193A patent/EP1001444A3/de not_active Withdrawn
-
1999
- 1999-06-08 US US09/327,718 patent/US6154115A/en not_active Expired - Fee Related
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3637275C1 (en) * | 1986-11-03 | 1988-05-05 | Flohr Peter | Overcurrent trip device for protection switching apparatuses |
US4965543A (en) * | 1988-11-16 | 1990-10-23 | Merin Gerin | Magnetic trip device with wide tripping threshold setting range |
DE29502573U1 (de) * | 1995-02-16 | 1995-04-20 | Heinrich Kopp Ag, 63796 Kahl | Schaltgerät, insbesondere Leitungsschutzschalter |
DE19629062A1 (de) * | 1996-07-18 | 1998-01-29 | Kopp Heinrich Ag | Überstromauslöser für Schutzschaltgeräte zur selektiven Staffelung in Stromkreisen |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2999014A1 (fr) * | 2012-12-03 | 2014-06-06 | Schneider Electric Ind Sas | Actionneur a shunt magnetothermique, en particulier pour le declenchement de disjoncteur |
WO2014087073A1 (fr) * | 2012-12-03 | 2014-06-12 | Schneider Electric Industries Sas | Actionneur a shunt magnetothermique, en particulier pour le declenchement de disjoncteur |
US9355803B2 (en) | 2012-12-03 | 2016-05-31 | Schneider Electric Industries Sas | Actuator with thermomagnetic shunt, especially for triggering a circuit breaker |
US10283301B2 (en) | 2014-11-12 | 2019-05-07 | Schneider Electric Industries Sas | Electromagnetic actuator and circuit breaker comprising such an actuator |
Also Published As
Publication number | Publication date |
---|---|
US6154115A (en) | 2000-11-28 |
EP1001444A3 (de) | 2001-04-04 |
DE19847155A1 (de) | 2000-04-20 |
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