DE536909C - Switching magnet for direct and alternating current - Google Patents

Switching magnet for direct and alternating current

Info

Publication number
DE536909C
DE536909C DENDAT536909D DE536909DD DE536909C DE 536909 C DE536909 C DE 536909C DE NDAT536909 D DENDAT536909 D DE NDAT536909D DE 536909D D DE536909D D DE 536909DD DE 536909 C DE536909 C DE 536909C
Authority
DE
Germany
Prior art keywords
armature
alternating current
switching magnet
direct
magnetic core
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
Application number
DENDAT536909D
Other languages
German (de)
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.)
BBC Brown Boveri France SA
Original Assignee
BBC Brown Boveri France SA
Publication date
Application granted granted Critical
Publication of DE536909C publication Critical patent/DE536909C/en
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00Magnets
    • H01F7/06Electromagnets; Actuators including electromagnets
    • H01F7/08Electromagnets; Actuators including electromagnets with armatures
    • H01F7/10Electromagnets; Actuators including electromagnets with armatures specially adapted for alternating current
    • H01F7/12Electromagnets; Actuators including electromagnets with armatures specially adapted for alternating current having anti-chattering arrangements
    • H01F7/1205Electromagnets; Actuators including electromagnets with armatures specially adapted for alternating current having anti-chattering arrangements having short-circuited conductors

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Electromagnets (AREA)
  • Dc Machiner (AREA)

Description

Die Charakteristik der üblichen Schaltmagnete nach Klappanker- oder Tauchankerbauart ist insofern ungünstig, als die Zugkraft zu Beginn einer Schließbewegung verhältnismäßig klein ist, gegen das Ende zu jedoch auf unnötig hohe Werte ansteigt. Man hat auf verschiedene Weise versucht, einen weniger steilen Verlauf der Weg-Zugkraft-Charakteristik zu erreichen, z. B. durch Verwendung abgestufter ίο Anker.The characteristics of the usual switching magnets of the hinged armature or plunger armature design is unfavorable in that the tensile force at the beginning of a closing movement is proportionate is small, but increases to unnecessarily high values towards the end. You have different Way tries to achieve a less steep course of the path-tensile force characteristic, z. B. by using graduated ίο anchors.

Gegenstand der Erfindung ist nun ein Schaltmagnet für Gleich- und Wechselstrom mit festem Magnetkern und beweglichem Anker, deren Berührungspolfiäclien treppenförmig gegeneinander abgesetzt sind und bei dem ein über den Schaltweg gleichförmiges Anzugsmoment erfindungsgemäß dadurch erzielt wird, daß der Anker mit einer Kurzschlußwindung versehen ist, die einen Teil der Kraftlinien umso faßt und in denjenigen Flächen des Ankers angebracht ist, die der Bewegungsrichtung des Ankers parallel verlaufen.The invention now relates to a solenoid for direct and alternating current with Fixed magnetic core and movable armature, the contact poles of which are step-shaped are offset from each other and with a uniform tightening torque over the shift travel according to the invention is achieved in that the armature is provided with a short-circuit winding, which is a part of the lines of force sums and is mounted in those surfaces of the anchor that the direction of movement of the Anchor run parallel.

In der Zeichnung sind Ausführungsbeispiele der Erfindung dargestellt, und zwar zeigt Abb. 1 einen Wechselstrommagneten mit Klappanker und Abb. 2 einen solchen mit Tauchanker.Exemplary embodiments of the invention are shown in the drawing, namely FIG. 1 an alternating current magnet with a hinged armature and Fig. 2 one with a plunger armature.

In beiden Abbildungen bedeutet 1 den festen Magnetkern, 2 den Anker und 3 die Erregerspule. 4 ist die Haltekurzschlußwindung, welche in bekannter Weise bei Wechselstrommagneten das Brummen unterdrückt. Die Kurzschlußwindung 5 umfaßt die Stufenfläche des abgestuften Ankers, die der Bewegungsrichtung des Ankers parallel verläuft.In both figures, 1 means the fixed magnetic core, 2 the armature and 3 the excitation coil. 4 is the holding short-circuit winding, which is used in a known manner in AC magnets suppresses the hum. The short-circuit winding 5 comprises the step surface of the stepped Anchor that is parallel to the direction of movement of the anchor.

Wie aus den Darstellungen in den beiden Abbildungen zu ersehen ist, liegt die untere Fläche des stufenförmig abgesetzten Ankers auch in geöffnetem Zustande nahe der am weitesten gegen den Anker vorgeschobenen Polfläche des Magnetkerns. Die Luftstrecke, durch welcheAs can be seen from the representations in the two figures, the lower surface is located of the stepped anchor close to the furthest, even when open against the armature advanced pole face of the magnetic core. The air gap through which

der Kraftfluß gegen diese vorgeschobene Ankerfläche zu fließen hat, ist verhältnismäßig klein, so daß der Kraftfluß sich von Anfang an kräftig ausbilden kann. Im gleichen Maße wie sich der Anker gegen die Schließstellung hin bewegt, schiebt sich die Stufenfläche des Ankers, welche der Bewegungsrichtung parallel verläuft, vor die entsprechende Stufenfläche des Magnetkernes. Ohne die Kurzschlußwindung 5 würde ein kräftiger Flux durch den verhältnismäßig kleinen Luftspalt zwischen Polkern und Anker hindurchtreten. Dadurch würde ein magnetischer Nebenschluß zum Kraftfluß gebildet werden, welcher in die Stirnflächen des Ankers eintritt, so daß die Zugkraft am Anker vermindert wird. Durch die Kurzschlußwindung wird die Ausbildung des störenden magnetischen Nebenschlusses verhindert und ein gleichförmiges Anzugsmoment erreicht.the force flow against this advanced anchor surface is relatively small, so that the power flow can develop strongly from the beginning. To the same extent as the Moving armature towards the closed position, the stepped surface of the armature, which moves parallel to the direction of movement, in front of the corresponding stepped surface of the magnetic core. Without the short-circuit winding 5, there would be a strong flux through the relatively small air gap between the pole core and the armature step through. This would create a magnetic shunt to the power flow which enters the end faces of the armature, so that the tensile force on the armature is reduced will. The short-circuit turns the formation of the disturbing magnetic Shunt prevented and a uniform tightening torque is achieved.

Claims (2)

Patentansprüche:Patent claims: 1. Schaltmagnet für Gleich- und Wechselstrom, bestehend aus einem festen Magnetkern und einem beweglichen Anker, deren Berührungspolflächen treppenförmig gegeneinander abgesetzt sind, dadurch gekennzeichnet, daß der Anker mit einer Kurzschlußwindung versehen ist, die einen Teil der Kraftlinien umfaßt und in denjenigen Flächen des Ankers angebracht ist, die der' Bewegungsrichtung des Ankers parallel verlaufen. 1. Switching magnet for direct and alternating current, consisting of a fixed magnetic core and a movable armature, the contact pole faces of which face each other in a stepped manner are discontinued, characterized in that the armature with a short-circuit winding is provided, which includes a part of the lines of force and is attached in those surfaces of the anchor, which the ' Direction of movement of the armature run parallel. 2. Schaltmagnet für Wechselstrom nach Anspruch 1, dadurch gekennzeichnet, daß in der senkrecht zu der Bewegungsrichtung des Ankers liegenden Polfläche des Magnetkernes, die am weitesten gegen den Anker vorgeschoben ist, eine weitere das Brummen verhindernde Kurzschluß windung angebracht ist.2. Switching magnet for alternating current according to claim 1, characterized in that in the pole face of the magnetic core that is perpendicular to the direction of movement of the armature, which is advanced furthest against the armature, another short-circuit winding preventing the hum is attached is. Hierzu 1 Blatt Zeichnungen1 sheet of drawings
DENDAT536909D Switching magnet for direct and alternating current Expired DE536909C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE536909T

Publications (1)

Publication Number Publication Date
DE536909C true DE536909C (en) 1931-10-28

Family

ID=6557500

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT536909D Expired DE536909C (en) Switching magnet for direct and alternating current

Country Status (1)

Country Link
DE (1) DE536909C (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1262452B (en) * 1959-07-10 1968-03-07 Elektro App Werke Berlin Trept Electromagnet, especially for overcurrent releases with delayed release by a timer
FR2566571A1 (en) * 1984-06-25 1985-12-27 Telemecanique Electrique OVERVOLTAGE AMORTIZATION DEVICE FOR ELECTROAIMANT AND ELECTRO-MAGNET EQUIPPED WITH SUCH A DEVICE
DE4222737A1 (en) * 1992-03-13 1993-09-16 Miele & Cie Magnet coil with dipping armature e.g. for micro-wave oven - moves against force of lock spring to maintain stable position in varying field of magnetic coil.
WO2009000271A1 (en) * 2007-06-27 2008-12-31 Danfoss A/S A magnetic actuator and a valve comprising such an actuator
WO2014094809A1 (en) 2012-12-21 2014-06-26 Festo Ag & Co. Kg Electromechanical drive arrangement and solenoid valve

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1262452B (en) * 1959-07-10 1968-03-07 Elektro App Werke Berlin Trept Electromagnet, especially for overcurrent releases with delayed release by a timer
FR2566571A1 (en) * 1984-06-25 1985-12-27 Telemecanique Electrique OVERVOLTAGE AMORTIZATION DEVICE FOR ELECTROAIMANT AND ELECTRO-MAGNET EQUIPPED WITH SUCH A DEVICE
EP0169748A1 (en) * 1984-06-25 1986-01-29 Telemecanique Device for damping overvoltages in a solenoid, and solenoid equipped with such a device
DE4222737A1 (en) * 1992-03-13 1993-09-16 Miele & Cie Magnet coil with dipping armature e.g. for micro-wave oven - moves against force of lock spring to maintain stable position in varying field of magnetic coil.
WO2009000271A1 (en) * 2007-06-27 2008-12-31 Danfoss A/S A magnetic actuator and a valve comprising such an actuator
WO2014094809A1 (en) 2012-12-21 2014-06-26 Festo Ag & Co. Kg Electromechanical drive arrangement and solenoid valve

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