CH181069A - Permanent magnet system with pole pieces, especially for ignition and luminous power generators. - Google Patents

Permanent magnet system with pole pieces, especially for ignition and luminous power generators.

Info

Publication number
CH181069A
CH181069A CH181069DA CH181069A CH 181069 A CH181069 A CH 181069A CH 181069D A CH181069D A CH 181069DA CH 181069 A CH181069 A CH 181069A
Authority
CH
Switzerland
Prior art keywords
pole pieces
magnet system
permanent magnet
ignition
power generators
Prior art date
Application number
Other languages
German (de)
Inventor
Aktiengesellschaft Rober Bosch
Original Assignee
Bosch Robert 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 Bosch Robert Ag filed Critical Bosch Robert Ag
Publication of CH181069A publication Critical patent/CH181069A/en

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  • Magnetic Treatment Devices (AREA)

Description

  

  Dauermagnetsystem mit Polschuhen, insbesondere für     Zünd-          und    Lichtstromerzeuger.    Die Erfindung bezieht sich auf Dauer  magnetsysteme mit Polschuhen, insbesondere  ein solches für Zündstromerzeuger. Bisher  war es üblich, die Polschuhe an den Mag  neten durch Schrauben oder dergleichen zu  befestigen, oder auch die Polschuhe an einem  das ganze Magnetsystem umschliessenden Ge  häuse festzumachen und gegen die Magnete  anzupressen. Diese bekannten Konstruk  tionen haben alle den Nachteil, dass eine       gute    Verbindung nur durch eine sorgfältige  und daher kostspielige Bearbeitung der Mag  nete und Polschuhe zu erreichen ist. Dazu  kommt noch, dass die Verluste in den Pol  schuhen durch die in sie eindringenden Be  festigungsteile erhöht werden.

   Gemäss der  Erfindung werden diese Nachteile dadurch  vermieden, dass die Magnete und Polschuhe  durch ineinandergreifende Ansätze miteinan  der verbunden sind.  



  In der Zeichnung ist ein Ausführungsbei  spiel des Gegenstandes der Erfindung dar  gestellt. Es zeigen:    Fig. 1 ein ringförmiges Magnetsystem,  Fig. 2 einen Schnitt nach der Linie 2-2  der Fig. 1.  



  Das dargestellte Magnetsystem besteht  aus einer Anzahl aus Blechen zusammen  gesetzten Polschuhen     a,    die mit gleichen Ab  ständen voneinander im Kreis angeordnet  sind. Zwischen den Polschuhen liegen Mag  netstäbe b, die aus einem magnetisch hoch  wenigen Stahl, zum Beispiel Aluminium  nickelstahl, bestehen. Die Polschuhe und die  Magnetstäbe sind dadurch miteinander ver  bunden, dass die Magnete um Ansätze c der  Polschuhe herumgegossen sind. Die Ansätze  sind im Ausführungsbeispiel schwalben  schwanzförmig. Der aus den Polschuhen und  Stäben gebildete Ring ist in ein Gehäuse d  von Aluminium oder einem andern nicht  magnetisierbaren Werkstoff eingegossen.



  Permanent magnet system with pole pieces, especially for ignition and luminous power generators. The invention relates to permanent magnet systems with pole pieces, in particular one for ignition current generator. So far it has been customary to fasten the pole pieces to the Mag designated by screws or the like, or to fix the pole pieces to a housing enclosing the entire magnet system and to press them against the magnets. These known constructions all have the disadvantage that a good connection can only be achieved through careful and therefore expensive processing of the magnet and pole pieces. In addition, the losses in the pole shoes are increased by the fastening parts that penetrate into them.

   According to the invention, these disadvantages are avoided in that the magnets and pole shoes are connected to one another by interlocking approaches.



  In the drawing, a Ausführungsbei is playing the object of the invention is provided. They show: FIG. 1 an annular magnet system, FIG. 2 a section along the line 2-2 of FIG. 1.



  The magnet system shown consists of a number of metal sheets put together pole pieces a, which are arranged in a circle with equal distances from each other. Magnetic rods b are located between the pole pieces and are made of a magnetically low amount of steel, for example aluminum nickel steel. The pole pieces and the magnet bars are connected to each other in that the magnets are cast around approaches c of the pole pieces. In the exemplary embodiment, the approaches are dovetail-shaped. The ring formed from the pole pieces and rods is cast in a housing d made of aluminum or some other non-magnetizable material.

 

Claims (1)

PATENTANSPRUCH: Dauermagnetsystem mit Polschuhen, ins besondere für Zünd- und Lichtstromerzeuger, dadurch gekennzeichnet, dass die Magnete und Polschuhe mittels ineinandergreifender Ansätze miteinander verbunden sind. UNTERANSPRÜCHE: 1. Dauermagnetsystem gemäss Patentan spruch, dadurch gekennzeichnet, dass die Magnete um Ansätze der Polschuhe herumgegossen sind. 2. Dauermagnetsystem gemäss Patentan spruch und Unteranspruch 1, dadurch gekennzeichnet, dass die Magnete und Polschuhe zusammen in ein nichtmag- netisierbares Gehäuse eingegossen sind. PATENT CLAIM: Permanent magnet system with pole pieces, especially for ignition and luminous current generators, characterized in that the magnets and pole pieces are connected to one another by means of interlocking attachments. SUBClaims: 1. Permanent magnet system according to patent claim, characterized in that the magnets are cast around approaches of the pole pieces. 2. Permanent magnet system according to claim and dependent claim 1, characterized in that the magnets and pole shoes are cast together in a non-magnetizable housing.
CH181069D 1934-03-29 1935-02-04 Permanent magnet system with pole pieces, especially for ignition and luminous power generators. CH181069A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE181069X 1934-03-29

Publications (1)

Publication Number Publication Date
CH181069A true CH181069A (en) 1935-11-30

Family

ID=5714188

Family Applications (1)

Application Number Title Priority Date Filing Date
CH181069D CH181069A (en) 1934-03-29 1935-02-04 Permanent magnet system with pole pieces, especially for ignition and luminous power generators.

Country Status (1)

Country Link
CH (1) CH181069A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2756356A (en) * 1953-09-16 1956-07-24 Globe Union Inc Field magnet unit for flywheel magnetos

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2756356A (en) * 1953-09-16 1956-07-24 Globe Union Inc Field magnet unit for flywheel magnetos

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