DE1006501B - A magnetic auxiliary circuit branched off from the main magnetic circuit of the inductor of a generator with permanent magnets - Google Patents

A magnetic auxiliary circuit branched off from the main magnetic circuit of the inductor of a generator with permanent magnets

Info

Publication number
DE1006501B
DE1006501B DEF13101A DEF0013101A DE1006501B DE 1006501 B DE1006501 B DE 1006501B DE F13101 A DEF13101 A DE F13101A DE F0013101 A DEF0013101 A DE F0013101A DE 1006501 B DE1006501 B DE 1006501B
Authority
DE
Germany
Prior art keywords
magnetic
circuit
permanent magnets
inductor
generator
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.)
Pending
Application number
DEF13101A
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.)
Marelli Europe SpA
Original Assignee
Magneti Marelli SpA
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 Magneti Marelli SpA filed Critical Magneti Marelli SpA
Publication of DE1006501B publication Critical patent/DE1006501B/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/22—Rotating parts of the magnetic circuit
    • H02K1/27—Rotor cores with permanent magnets
    • H02K1/2786—Outer rotors
    • H02K1/2787—Outer rotors the magnetisation axis of the magnets being perpendicular to the rotor axis
    • H02K1/2789—Outer rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets
    • H02K1/2791—Surface mounted magnets; Inset magnets

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Permanent Magnet Type Synchronous Machine (AREA)

Description

Vom magnetischen Hauptkreis des Induktors eines Generators mit Permanentmagneten abgezweigter magnetischer Hilfskreis Bekanntlich werden die Permanentmagnete von elektrischen Generatoren nach Art der Schwungradwechselstromgeneratoren für Kraftfahrzeuge, Motorräder u. dgl. wegen des hohen magnetischen Widerstandes des induzierenden Magnetkreises, wenn dieser vom induzierten Magnetkreis getrennt ist, nur sehr wenig ausgenutzt. Dieser hohe magnetische Widerstand verursacht ein Absinken des Arbeitspunktes auf der Entmagnetisierungskurve der Permanentmagnete.From the main magnetic circuit of the inductor of a generator with permanent magnets Branch-off magnetic auxiliary circuit As is known, the permanent magnets of electric generators of the type of flywheel alternators for motor vehicles, Motorcycles and the like because of the high magnetic resistance of the inducing magnetic circuit, if this is separated from the induced magnetic circuit, very little use is made of it. This high magnetic resistance causes the operating point to drop the demagnetization curve of the permanent magnets.

Es ist ferner bekannt, daß man - zum Zwecke der Einhaltung gewisser Grenzen für den magnetischen Widerstand - zwischen den Polen der einzelnen Permanentmagnete einen Hilfsmagnetkreis (mit oder ohne Luftspalt) abzweigen kann, der einen derartigen magnetischen Widerstand besitzt, daß die Entmagnetisierung der Magnete innerhalb der gewünschten Grenzen gehalten wird.It is also known that one - for the purpose of compliance with certain Magnetic resistance limits - between the poles of each permanent magnet an auxiliary magnetic circuit (with or without an air gap) can branch off which has such a magnetic resistance that demagnetizes the magnets within the desired limits are kept.

Dieser magnetische Hilfskreis ist auch hinsichtlich der durch die Ankerrückwirkung -sei es bei Normalbetrieb, sei es bei Auftreten von Kurzschlüssen der Ankerwicklungen --- verursachten Entmagnetisierung vorteilhaft. Die Anordnung dieses magnetischen Hilfskreises, so wie er bisher angebracht wurde (s. Fig. 1), brachte den Nachteil mit sich, daß dadurch die Durchmesserabmessungen der Maschinen, an denen er benutzt wird, vergrößert werden.This auxiliary magnetic circuit is also in terms of the Armature reaction - be it in normal operation, be it in the event of short circuits of the armature windings --- demagnetization caused beneficial. The order this magnetic auxiliary circuit, as it has been attached so far (see Fig. 1), brought with it the disadvantage that the diameter dimensions of the machines, on which it is used.

Die Erfindung hat nun eine Vorrichtung zum Gegenstand, welche alle Vorteile der bisherigen Systeme (magnetischer Hilfskreis) beibehält, jedoch keinerlei Vergrößerung des Raumbedarfs in radialer Richtung erfordert, da der magnetische Hilfskreis in axialer Richtung an der einen oder der anderen oder an beiden Seiten des magnetischen Hauptkreises vorgesehen ist und auf diese Weise innerhalb der Zylinderflächen verbleibt, die den magnetischen Hauptkreis einschließen.The invention now has a device as an object, which all Retains advantages of previous systems (magnetic auxiliary circuit), but none at all Requires an increase in the space required in the radial direction, since the magnetic Auxiliary circle in the axial direction on one or the other or on both sides of the main magnetic circuit is provided and in this way within the cylinder surfaces remains, which include the main magnetic circuit.

Die Fig. 1 zeigt, wie bereits angedeutet, das derzeit angewendete System, wobei 1 die Polschuhe des magnetischen Hilfskreises sind und 2 der Permanentmagnet ist.Fig. 1 shows, as already indicated, the currently used System, with 1 being the pole pieces of the auxiliary magnetic circuit and 2 being the permanent magnet is.

In Fig. 2, die das erfindungsgemäße System perspektivisch und nur beispielsweise darstellt, ist der durch den Magnet 3 und den magnetischen Hilfskreis, dessen Polschuhe mit 4 bezeichnet sind, gebildete Induktionskreis erkennbar. Diese Polschuhe 4 sind gemäß dem Ausführungsbeispiel an einer Seite des Magnets 3 angeordnet. Wie ersichtlich, ist weder der Außen- noch der Innendurchmesser durch die Anbringung des magnetischen Hilfssystems verändert.In Fig. 2, the system according to the invention in perspective and only represents, for example, is the one created by magnet 3 and the auxiliary magnetic circuit, whose pole shoes are denoted by 4, formed induction circuit can be seen. These According to the exemplary embodiment, pole shoes 4 are arranged on one side of the magnet 3. As can be seen, neither the outside nor the inside diameter is due to the attachment of the magnetic auxiliary system changed.

Wie gesagt, können die Hilfskreise auch zu beiden Seiten der Permanentmagnete angeordnet sein.As I said, the auxiliary circuits can also be on both sides of the permanent magnets be arranged.

Claims (3)

PATENTANSPRÜCHE: 1. Vorn magnetischen Hauptkreis des Induktors eines Generators mit Permanentmagneten abgezweigter magnetischer Hilfskres"dadurch gekennzeichnet, daß er in axialer Richtung neben dem Permanentmagnet angeordnet ist. PATENT CLAIMS: 1. Front magnetic main circuit of the inductor of a Generator with permanent magnets branched-off magnetic auxiliary circuit "characterized in that that it is arranged in the axial direction next to the permanent magnet. 2. Magnetischer Hilfskreis nach Anspruch 1, dadurch gekennzeichnet, daß er nur an einer Seite des im magnetischen Hauptkreis liegenden Permanentmagnets (2) vorgesehen ist. 2. Magnetic Auxiliary circuit according to claim 1, characterized in that it is only on one side of the Permanent magnet (2) located in the main magnetic circuit is provided. 3. Magnetischer Hilfskreis nach Anspruch 1, dadurch gekennzeichnet, daß er an beiden Seiten des im magnetischen Hauptkreis liegenden Permanentmagnets angeordnet ist.3. Magnetic Auxiliary circuit according to claim 1, characterized in that it is on both sides of the is arranged in the main magnetic circuit lying permanent magnet.
DEF13101A 1952-11-08 1953-10-27 A magnetic auxiliary circuit branched off from the main magnetic circuit of the inductor of a generator with permanent magnets Pending DE1006501B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT1006501X 1952-11-08

Publications (1)

Publication Number Publication Date
DE1006501B true DE1006501B (en) 1957-04-18

Family

ID=11428989

Family Applications (1)

Application Number Title Priority Date Filing Date
DEF13101A Pending DE1006501B (en) 1952-11-08 1953-10-27 A magnetic auxiliary circuit branched off from the main magnetic circuit of the inductor of a generator with permanent magnets

Country Status (1)

Country Link
DE (1) DE1006501B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2197746A1 (en) * 2000-04-03 2004-01-01 Honda Motor Co Ltd Permanent magnet rotary electric machine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2197746A1 (en) * 2000-04-03 2004-01-01 Honda Motor Co Ltd Permanent magnet rotary electric machine

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