EP0836212A2 - Bistabiles Elektromagnetsystem für ein Relais - Google Patents
Bistabiles Elektromagnetsystem für ein Relais Download PDFInfo
- Publication number
- EP0836212A2 EP0836212A2 EP97114392A EP97114392A EP0836212A2 EP 0836212 A2 EP0836212 A2 EP 0836212A2 EP 97114392 A EP97114392 A EP 97114392A EP 97114392 A EP97114392 A EP 97114392A EP 0836212 A2 EP0836212 A2 EP 0836212A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- yoke
- permanent magnet
- section
- bridge element
- leg
- 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.)
- Granted
Links
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H51/00—Electromagnetic relays
- H01H51/22—Polarised relays
Definitions
- Such an electromagnetic system is for example from the EP 0 686 989 A1 is known.
- the bistable switching device there is part of the cross section of the magnetic circuit formed by the permanent magnet. This is preferred in the Embodiment realized so that the permanent magnet between the two parts of a two-part yoke inserted and is polarized accordingly in the longitudinal direction of the yoke, the rest of the cross section either being an air gap or more or less by a ferromagnetic Section is completed.
- the aim of the present invention is to provide a bistable electromagnetic system to create the type mentioned at which the permanent magnet is inserted so that the overall construction with as few parts as possible in the simplest possible way is to be produced.
- the geometry of the magnetic circuit as little as possible by inserting the permanent magnet the geometry of a neutral magnet system with otherwise same structure can be changed.
- this goal is achieved in the system mentioned achieved that parallel to the constriction section is arranged ferromagnetic bridge element, which with a first end section over a large area to the magnetic flux circuit is coupled and with its other, second end section forms a longitudinal gap with respect to the magnetic flux circuit, in which is the permanent magnet polarized in the direction of the gap thickness is arranged, and that the constriction portion such is dimensioned such that it is closed when the anchor is closed the permanent magnetic flux is saturated.
- the magnetic flux circuit not interrupted by the insertion of the permanent magnet; the permanent magnet is therefore not a geometrically determining one Part of the magnetic circuit. Rather, the magnetic circuit, preferably the yoke, in an adjacent to the permanent magnet Section weakened in cross section, so that part of the Flow over the laterally coupled permanent magnet and that associated bridge element is guided.
- the laterally coupled Bridge element with the permanent magnet is special easy to manufacture and assemble as it regards its dimensions have no influence on the geometric coordination between core yoke and anchor and its tolerances therefore don't matter.
- the weakening at the constriction section the magnetic flux circuit is also at the manufacture of the core yoke or the anchor without large additional effort through a corresponding cutting stamp or to accomplish the like.
- the core yoke is in known way - a U-shaped shape with a die Coil-bearing core leg and a yoke leg, the free end faces are aligned with each other in one plane, whereby an end portion of the yoke leg with the permanent magnet Bridge element carries.
- the yoke leg can be used accordingly step-shaped heels the permanent magnet and that Pick up the bridge element in the cross-section of its basic contour, so that the geometric dimensions are essentially accurate those of an otherwise identical magnetic system correspond without permanent magnet.
- the necking section and the permanent magnet with the bridge element on a section of the core yoke and preferably in the end region a yoke leg are provided, would be the invention also realized in that the anchor has a constriction section exhibited and with the permanent magnet as well would provide the bridge element.
- the bridge element as an additional part in parallel to the portion having the constricted portion of the magnetic flux circuit is applied.
- the permanent magnet then would get caught between these fork ends.
- the main path the yoke section would then have to be reduced in cross section or constriction, for example through a hole perpendicular to the longitudinal extension of the yoke could be done.
- the bridge element can on the magnetic circuit section, for example the yoke leg, using one of the conventional methods are attached, for example by gluing, spot welding or laser welding.
- the magnet system shown in FIGS. 1 to 4 has one U-shaped core yoke 1 with a core leg 2 and one Yoke leg 3, whose end faces 4 and 5 in one Align plane with each other.
- the core leg 2 carries one Coil body 6 with a winding 7.
- the End face 4 of the core or more precisely, in a notch between the end face 4 and an extension 8 of the bobbin a plate-shaped anchor 9 pivotally mounted with the end face 5 of the yoke leg as a pole face Working air gap forms.
- a return spring 10 the is suspended on both sides of the extension 8 of the bobbin and engages in a recess 11 on the outside of the armature, the anchor is in its rest position by the yoke leg biased away to the outside.
- the yoke leg 3 is near its free end with a recess 12 and thus forms a constriction section 13 in the form of two narrow side Bridges.
- This constriction section could of course also be designed in a different way. It is important that this Constriction section only a certain amount of magnetic flux can absorb up to its saturation and so the additional Forces magnetic flux onto a parallel circuit passing through a flat permanent magnet 14 and a ferromagnetic bridge element 15 is formed.
- the yoke leg 3 with two Gradations 16 and 17 provided. At the first gradation 16 the bridge element 15 is inserted so that the total thickness of the yoke leg at this point with the bridge element of the Basic thickness of the yoke leg 3 corresponds.
- the second Gradation 17 is between the bridge element 15 and the end portion of the yoke leg 3 formed a gap in which the permanent magnet 14 with one of the gap length and Slit width polarization is arranged. That means, that the permanent magnet with a pole on the end portion of the yoke leg 3 and with its opposite pole the bridge element 15 is coupled.
- this end section 18 is widened in the end region, so that it has a sufficient cross section and a sufficient large pole face 5 for the excitation and holding flux having.
- the bridge element 15 is in the the area opposite the end section 18 widened, so that the control flow through a large air gap area the permanent magnet and next to the permanent magnet from can pass over the end section 18 to the bridge element 15.
- the permanent magnet is very flat and in the direction polarized on its short axis. For example, it can have a thickness of the order of 0.3 mm.
- the function of the magnet system described results from the arrangement of the individual parts.
- the unexcited illustrated Condition is the armature by the return spring 10 in prestressed the fallen state.
- the flow of the permanent magnet 14 closes over the end section 18, as well as the Constriction section 13 of the yoke leg 16 and the bridge element 15, while the leakage flux over the pole face 5 and the working air gap to the anchor is not sufficient, the anchor attract against the restoring force of the spring 10.
- the stray flux be influenced to fine-tune the response of the magnet system.
- the permanent magnet is expediently opened first applied the bridge element, for example glued, and then the bridge element is attached to the yoke leg.
- adhesive attachment is the preferred Mounting type. But it would also be a spot weld or one Laser welding possible.
- the magnet system can be known per se Way to be used in a relay, the Contact springs, not shown, through a slide the free end of the anchor can be operated.
- FIG. 1 Another embodiment is schematically shown in FIG shown.
- this case there is also a U-shaped core yoke 21 shown with a core leg 22 and a yoke leg 23, wherein the core leg carries a coil winding 24.
- An anchor 25 is mounted on the end face of the yoke leg 23 and held by an anchor spring 26 or in its rest position biased. With the free end of the core leg 22 the anchor forms the working air gap.
- owns the anchor has a constriction section or one in cross section weakened section 29 of the side view is not visible and is therefore only indicated by dashed lines.
- a permanent magnet 27 In front of this constriction section 26 is on the free end the armature a permanent magnet 27 with a transverse to the longitudinal extent extending polarization arranged over which a ferromagnetic Bridge element 28 the upper pole of the permanent magnet parallel to the constricted section 29 to the stored Coupled end of the armature 25.
- the bridge element 28 is in this case designed as a simple plate while the anchor a step with the thickness of the permanent magnet 27th having. It would also be conceivable, the anchor 25 with the To produce bridge element 28 in one piece and with one To provide slot of the thickness of the permanent magnet 27 and subsequently clamp the permanent magnet in this slot. In this case too, there would have to be a recess for education of the constriction section 29 in the lower, the main river receiving part of the anchor.
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Electromagnets (AREA)
- Polymers With Sulfur, Phosphorus Or Metals In The Main Chain (AREA)
Abstract
Description
- einem eine Spule tragenden Kernjoch mit zwei Polenden,
- einem Anker, der die Polenden des Kernjoches unter Bildung mindestens eines Arbeitsluftspaltes überbrückt und mit diesem einen Magnetflußkreis bildet,
- einer den Anker in eine von dem Kernjoch abgehobene Ruhestellung vorspannende Rückstelleinrichtung und
- einen im Querschnitt verminderten Einschnürungsabschnitt des Magnetflußkreises, zu dem ein Dauermagnet parallel geschaltet ist.
Claims (8)
- Bistabiles Elektromagnetsystem für ein Relais miteinem eine Spule (7;24) tragenden Kernjoch (1;21) mit zwei Polenden (4,5),einem Anker (9;25), der die Polenden des Kernjoches (1;21) unter Bildung mindestens eines Arbeitsluftspaltes überbrückt und mit diesem einen Magnetflußkreis bildet,einer den Anker (9;25) in eine von dem Kernjoch (1;21) abgehobene Ruhestellung vorspannende Rückstelleinrichtung (10;26) undeinem im Querschnitt verminderten Einschnürungsabschnitt (13;29) des Magnetflußkreises, zu dem ein Dauermagnet (14;27) parallel geschaltet ist,
- Magnetsystem nach Anspruch 1,
dadurch gekennzeichnet, daß das Kernjoch (1;21) eine U-förmige Gestalt mit einem die Spule tragenden Kernschenkel (2;22) und einem Jochschenkel (3;23) aufweist, deren freie Stirnflächen (4,5) miteinander in einer Ebene fluchten, und daß ein Endabschnitt (18) des Jochschenkels (3) den Dauermagneten (14) mit dem Brückenelement 815) trägt. - Magnetsystem nach Anspruch 2,
dadurch gekennzeichnet, daß der Jochschenkel (3) im Auflagebereich des Dauermagneten (14) eine verringerte Dicke und eine vergrößerte Breite aufweist. - Magnetsystem nach Anspruch 3,
dadurch gekennzeichnet, daß der Jochschenkel (3) gegenüber seinem Grundquerschnitt in seiner Dicke zweimal stufenförmig abgesetzt ist, wobei in dem ersten Stufenabsatz (16) das Brückenelement (15) und in dem zweiten Stufenabsatz (17) das Brückenelement (15) mit dem Dauermagneten (14) an den Jochschenkel (3) gekoppelt ist. - Magnetsystem nach Anspruch 4,
dadurch gekennzeichnet, daß die Stufenabsätze (16,17) des Jochschenkels (3) derart dimensioniert sind, daß die jeweilige Dicke des Jochschenkels (3) mit dem Brückenelement (15) und gegebenenfalls mit dem Dauermagneten (14) der Grunddicke des Kernjoches (1) entspricht. - Magnetsystem nach einem der Ansprüche 1 bis 5,
dadurch gekennzeichnet, daß der an den Dauermagneten (14) grenzende Abschnitt (18) des Jochschenkels (3) mit seiner Stirnseite (5) einen Arbeitsluftspalt mit dem Anker (9) bildet und daß das Brückenelement (15) eine gegenüber dem Jochschenkel (3) zurückgesetzte Stirnseite (19) aufweist. - Magnetsystem nach Anspruch 1 oder 2,
dadurch gekennzeichnet, daß der Einschnürungsabschnitt (29), der Dauermagnet (27) und das Brückenelement (28) auf dem Anker (25) vorgesehen sind. - Magnetsystem nach einem der Ansprüche 1, 2 oder 7,
dadurch gekennzeichnet, daß das Brückenelement (15;28) einstückig mit dem zugehörigen Abschnitt des Magnetkreises (3;25) ausgebildet ist und daß der Dauermagnet (14;27) in einem Längsschlitz des Abschnittes angeordnet ist.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19641407A DE19641407C1 (de) | 1996-10-08 | 1996-10-08 | Bistabiles Elektromagnetsystem für ein Relais |
DE19641407 | 1996-10-08 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0836212A2 true EP0836212A2 (de) | 1998-04-15 |
EP0836212A3 EP0836212A3 (de) | 2000-11-08 |
EP0836212B1 EP0836212B1 (de) | 2004-03-24 |
Family
ID=7808136
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP97114392A Expired - Lifetime EP0836212B1 (de) | 1996-10-08 | 1997-08-20 | Bistabiles Elektromagnetsystem für ein Relais |
Country Status (6)
Country | Link |
---|---|
US (1) | US5864271A (de) |
EP (1) | EP0836212B1 (de) |
JP (1) | JP3949239B2 (de) |
AT (1) | ATE262731T1 (de) |
DE (2) | DE19641407C1 (de) |
ES (1) | ES2216087T3 (de) |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL1010974C2 (nl) * | 1999-01-06 | 2000-07-07 | Holec Holland Nv | Tripsysteem voor een elektrische schakelaar met gunstige kracht-weg-karakteristiek. |
US20040036561A1 (en) * | 2001-10-05 | 2004-02-26 | Klaus Reiter | Magnet system for an electromechanical switching device and electromagnetic relay |
DE102004034296B3 (de) * | 2004-07-06 | 2005-06-23 | Saia-Burgess Dresden Gmbh | Elektromagnetischer Aktuator |
TWM285792U (en) * | 2005-05-06 | 2006-01-11 | Song Chuan Prec Co Ltd | Improved relay structure |
DE102005046238A1 (de) * | 2005-09-28 | 2007-03-29 | Hella Kgaa Hueck & Co. | Bistabiles elektromagnetisches Relais |
JP5446780B2 (ja) * | 2009-11-25 | 2014-03-19 | パナソニック株式会社 | 電磁継電器 |
DE102009059839A1 (de) * | 2009-12-21 | 2011-06-22 | Eaton Industries GmbH, 53115 | Vorrichtung zum Erkennen der Stromrichtungsumkehr |
CN202650990U (zh) * | 2012-07-02 | 2013-01-02 | 宁波福特继电器有限公司 | 一种小型大功率磁保持继电器 |
JP6171286B2 (ja) * | 2012-08-24 | 2017-08-02 | オムロン株式会社 | 電磁石装置 |
CN203457022U (zh) * | 2013-03-01 | 2014-02-26 | 美国调速器公司 | 具有增强的磁结构的电磁致动器 |
WO2015021847A1 (zh) * | 2013-08-14 | 2015-02-19 | 厦门宏发电声股份有限公司 | 一种并联型磁路的磁保持继电器 |
WO2016120881A1 (en) * | 2015-02-01 | 2016-08-04 | K.A. Advertising Solutions Ltd. | Electromagnetic actuator |
JP7501328B2 (ja) * | 2020-11-30 | 2024-06-18 | オムロン株式会社 | 電磁継電器 |
JP7459772B2 (ja) * | 2020-11-30 | 2024-04-02 | オムロン株式会社 | 電磁継電器 |
CN118553564B (zh) * | 2024-07-24 | 2024-10-11 | 宁波杰盈电器科技有限公司 | 一种磁保持继电器 |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1565323A (de) * | 1966-12-29 | 1969-05-02 | ||
FR1565322A (de) * | 1966-12-29 | 1969-05-02 | ||
US4223290A (en) * | 1977-12-24 | 1980-09-16 | Omron Tateisi Electronics Co. | Electromagnetic device of the flat package type |
DE8129713U1 (de) * | 1981-10-10 | 1983-10-27 | Eberle Anlagen KG, 8500 Nürnberg | Bistabiles Klappankerrelais |
EP0686989A1 (de) * | 1994-06-08 | 1995-12-13 | EH-SCHRACK COMPONENTS Aktiengesellschaft | Bistabile Schaltvorrichtung |
DE29521012U1 (de) * | 1995-06-01 | 1996-08-08 | Siemens AG, 80333 München | Polarisiertes elektromagnetisches Relais |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4064471A (en) * | 1976-03-22 | 1977-12-20 | Leach Corporation | Electromagnetic relay |
JPH079325Y2 (ja) * | 1988-09-27 | 1995-03-06 | 松下電工株式会社 | 密封型リレー |
JPH08180785A (ja) * | 1994-12-26 | 1996-07-12 | Nippondenso Co Ltd | 電磁継電器 |
DE29502797U1 (de) * | 1995-02-20 | 1995-04-06 | Kuhnke Gmbh Kg H | Bistabile elektrische Magnetvorrichtung |
US5703550A (en) * | 1995-12-26 | 1997-12-30 | General Motors Corporation | Magnetic latching relay |
-
1996
- 1996-10-08 DE DE19641407A patent/DE19641407C1/de not_active Expired - Fee Related
-
1997
- 1997-08-20 EP EP97114392A patent/EP0836212B1/de not_active Expired - Lifetime
- 1997-08-20 AT AT97114392T patent/ATE262731T1/de active
- 1997-08-20 ES ES97114392T patent/ES2216087T3/es not_active Expired - Lifetime
- 1997-08-20 DE DE59711443T patent/DE59711443D1/de not_active Expired - Lifetime
- 1997-10-08 JP JP27609297A patent/JP3949239B2/ja not_active Expired - Lifetime
- 1997-10-08 US US08/947,363 patent/US5864271A/en not_active Expired - Lifetime
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1565323A (de) * | 1966-12-29 | 1969-05-02 | ||
FR1565322A (de) * | 1966-12-29 | 1969-05-02 | ||
US4223290A (en) * | 1977-12-24 | 1980-09-16 | Omron Tateisi Electronics Co. | Electromagnetic device of the flat package type |
DE8129713U1 (de) * | 1981-10-10 | 1983-10-27 | Eberle Anlagen KG, 8500 Nürnberg | Bistabiles Klappankerrelais |
EP0686989A1 (de) * | 1994-06-08 | 1995-12-13 | EH-SCHRACK COMPONENTS Aktiengesellschaft | Bistabile Schaltvorrichtung |
DE29521012U1 (de) * | 1995-06-01 | 1996-08-08 | Siemens AG, 80333 München | Polarisiertes elektromagnetisches Relais |
Also Published As
Publication number | Publication date |
---|---|
EP0836212B1 (de) | 2004-03-24 |
JPH10125200A (ja) | 1998-05-15 |
DE59711443D1 (de) | 2004-04-29 |
ES2216087T3 (es) | 2004-10-16 |
EP0836212A3 (de) | 2000-11-08 |
JP3949239B2 (ja) | 2007-07-25 |
US5864271A (en) | 1999-01-26 |
DE19641407C1 (de) | 1998-01-15 |
ATE262731T1 (de) | 2004-04-15 |
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