DE2342499A1 - HOLDING DEVICE FOR FIELD MAGNETS IN THE HOUSING OF ELECTRIC MACHINERY - Google Patents

HOLDING DEVICE FOR FIELD MAGNETS IN THE HOUSING OF ELECTRIC MACHINERY

Info

Publication number
DE2342499A1
DE2342499A1 DE19732342499 DE2342499A DE2342499A1 DE 2342499 A1 DE2342499 A1 DE 2342499A1 DE 19732342499 DE19732342499 DE 19732342499 DE 2342499 A DE2342499 A DE 2342499A DE 2342499 A1 DE2342499 A1 DE 2342499A1
Authority
DE
Germany
Prior art keywords
housing
field magnets
holding device
field
magnets
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.)
Ceased
Application number
DE19732342499
Other languages
German (de)
Inventor
Otto Barthruff
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Priority to DE19732342499 priority Critical patent/DE2342499A1/en
Priority to FR7345326A priority patent/FR2241901B3/fr
Priority to BR685274A priority patent/BR7406852D0/en
Priority to JP49096048A priority patent/JPS5049602A/ja
Priority to IT2645474A priority patent/IT1020062B/en
Priority to GB3685374A priority patent/GB1477878A/en
Priority to ES429483A priority patent/ES429483A1/en
Publication of DE2342499A1 publication Critical patent/DE2342499A1/en
Ceased 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
    • H02K1/12—Stationary parts of the magnetic circuit
    • H02K1/17—Stator cores with permanent magnets

Description

20.7.1973 Wo/BrJuly 20, 1973 Wo / Br

Anlage zurAttachment to

Patent- undPatent and

GebrauchsmusterhilfsanmeldungUtility model registration

ROBERT BOSCH GMBH, StuttgartROBERT BOSCH GMBH, Stuttgart

Haltevorrichtung für Feldmagnete im Gehäuse elektrischer Maschinen Holding device for field magnets in the housing of electrical machines

Die Erfindung "betrifft eine Haltevorrichtung für Feldmagnete im Gehäuse elektrischer Maschinen, insbesondere Andrehmotoren von Brennkraftmaschinen.The invention "relates to a holding device for field magnets in the housing of electrical machines, in particular starting motors for internal combustion engines.

509810/0479509810/0479

Es sind bereits zahlreiche elektrische Maschinen bekannt, deren Feldmagnete im Polgehäuse angeschraubt, angenietet oder in Kunststoff eingegossen sind. Alle diese Haiteanordnungen sind aufwendig durch Verwenden und Anordnen zusätzlicher Befestigungsmittel für die Feldmagnete, ohne denoch immer eine einwandfreie Halterung der Feldmagnete zu gewährleisten. Es sind auch schon Haltevorrichtungen mit Federanordnungen bekannt. Die zwischen den Feldmagneten angeordneten Federn sind entweder ebenfalls durch zusätzliche Befestigungsmittel gesichert oder sie sind nicht ausreichend schüttelfest ausgebildet und eingesetzt. Numerous electrical machines are already known whose field magnets are screwed, riveted or riveted into the pole housing are cast in plastic. All of these holding arrangements are cumbersome by using and arranging additional fasteners for the field magnets, without always ensuring that the field magnets are properly held. It holding devices with spring arrangements are also known. The springs arranged between the field magnets are either also secured by additional fasteners or they are not designed and used sufficiently resistant to shaking.

Der Erfindung liegt daher die Aufgabe zugrunde, eine Haltevorrichtung für Feldmagnete im Gehäuse einer elektrischen Maschine zu schaffen, die aus einfachen Nitteln besteht, leicht zu montieren ist und die Feldmagnete schüttelfest im Gehäuse hält.The invention is therefore based on the object of a holding device to create for field magnets in the housing of an electrical machine, which consists of simple means, easy is to be installed and holds the field magnets in the housing so that they cannot be shaken.

Erfindungsgemäß wird die Aufgabe dadurch gelöst, daß im Gehäuse für jeden Feldmagneten mindestens ein radialgerichteter Zapfen ausgebildet ist, der in einer Ausnehmung des zugehörigen Feldmagneten aufgenommen ist, und daß zwischen den Feldmagneten Federn untergebracht sind, deren Endabschnitte eine innere Längskante jeweils zweier benachbarter Feldmagnete übergreifen.According to the invention the object is achieved in that in the housing for each field magnet at least one radially directed Pin is formed which is received in a recess of the associated field magnet, and that between the Field magnets springs are housed, the end portions of which have an inner longitudinal edge of two adjacent field magnets overlap.

Die zum Fixieren der Feldmagnete beispielsweise durch Prägen ausgebildeten Zapfen des Gehäuses haben das Volumen von ihnen am Außenmantel des Gehäuses gegenüberliegenden Ausnehmungen. For fixing the field magnets, for example, by embossing formed pins of the housing have the volume of them on the outer jacket of the housing opposite recesses.

Zum schüttelfesten Halten der Feldmagnete im Gehäuse sind die Federn vorteilhafterweise als U-förmige Blattfedern ausgebildet, deren die Längskanten übergreifende Schenkel im Abschnitt, welcher an den Längskanten der Feldmagnete anliegt, nach außen abgebogen sind.In order to hold the field magnets in the housing in such a way that they cannot shake, the springs are advantageously designed as U-shaped leaf springs, whose legs overlap the longitudinal edges in the section which rests against the longitudinal edges of the field magnets, are bent outwards.

509810/0479509810/0479

5 -5 -

Damit die Federn in Längsrichtung nicht verrutschen, liegen die Federschenkel in facettenförmigen Ausschnitten der Langskanten an den Feldmagneten an.So that the springs do not slip in the longitudinal direction, the spring legs are in facet-shaped cutouts Long edges on the field magnets.

Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung wiedergegeben.An embodiment of the invention is shown in the drawing.

Iii einem hohl zylindrischen Polgehäuse 1 sind rechtwinklig zueinander vier Zapfen 2 ausgebildet. Die Zapfen 2 sind radial auf die Längsachse des Polgehäuses 1 gerichtet und aus der Polgehäusewand geprägt. Sie haben eine zylindrische Form und ihr Volumen ist gleich dem einer zugehörigen zylindrischen Ausnehmung 3 in der Gehäuseaußenwand.III a hollow cylindrical pole housing 1 are at right angles to each other four pins 2 formed. The pins 2 are directed radially to the longitudinal axis of the pole housing 1 and off the pole housing wall embossed. They have a cylindrical shape and their volume is equal to that of a corresponding cylindrical one Recess 3 in the outer wall of the housing.

Vier Feldmagnete 4, die als gesinterte Permamentmagnete ausgebildet sind, haben eine der Innenwand des Gehäuses 1 angepaßte Anlageseite 5» in deren Mitte eine zylindrische Ausnehmung 6 angeordnet ist. Mit der Ausnehmung 6 wird jeder Feldmagnet 4 am zugehörigen Zapfen 2 im Polgehäuce 1 fixiert. Zum Befestigen der so fixierten Feldmagnete 4 sind jeweils zwei U-förmige Blattfedern 7 zwischen die Seiten 8 der nebeneinanderliegenden Feldmagnete 4 gesprengt. Jede Seite 8 der Feldmagnete 4 ist etwa rechtwinklig ausgebildet. Dabei bilden die beiden Seitenabschnitte 9 und 10 die Katheten eines etwa rechtwinkligen Dreiecks, dessen Hypothenuse durch eine Linie gebildet ist, deren Länge der Dicke eines Feldmagneten 4 entspricht und auf die Längsachse des Polgehä.uses 1 gerichtet ist. Der kürzere Seitenabschnitt 9 geht von der Innenseite und der längere Seitenabschnitt 10 von der am Polgehäuse 1 anliegenden Anlageseite 5 des Feldmagneten 4 aus. Die somit etwa rechtwinkligen Langskanten 11 der Feldmagnete 4 sind mit zwei im.Abstand angeordneten Facetten 12 versehen, deren Breite etwas größer als die Breite der Blattfedern 7 ist.Four field magnets 4, which are designed as sintered permanent magnets are, have one of the inner wall of the housing 1 adapted Contact side 5 »in the middle a cylindrical recess 6 is arranged. With the recess 6, each field magnet 4 is fixed on the associated pin 2 in the pole housing 1. To fasten the field magnets 4 fixed in this way, two U-shaped leaf springs 7 are in each case between the sides 8 of the adjacent ones Field magnets 4 blown up. Each side 8 of the field magnets 4 is formed approximately at right angles. Included the two side sections 9 and 10 form the cathets an approximately right-angled triangle, the hypotenuse of which is formed by a line, the length of which is the thickness of a field magnet 4 corresponds and is directed to the longitudinal axis of the Polgehä.uses 1. The shorter side section 9 goes from the Inner side and the longer side section 10 from the contact side 5 of the field magnet 4 resting on the pole housing 1. The thus approximately right-angled long edges 11 of the field magnets 4 are provided with two facets 12 arranged at a distance, the width of which is slightly greater than the width of the leaf springs 7.

Die Blattfedern 7 haben zwei Schenkel 13, die im Abschnitt 14, mit welchen sie an den Facetten 12 anliegen, so nach außen abgebogen sind, daß die Federschenkel 13 mit ihren Enden über die Langskanten 11 hinausragen und die Feldmagnete 4 an die Innenwand des Polgehäuses 1 drücken. Der Abstand zwischen denThe leaf springs 7 have two legs 13, which in the section 14 with which they rest on the facets 12, so outward Are bent that the spring legs 13 protrude with their ends beyond the long edges 11 and the field magnets 4 to the Press the inner wall of the pole housing 1. The distance between the

509810/0479509810/0479

Längskanten 11 der nebeneinanderliegenden Feldmagnete 4 ist dazu gleich oder kleiner gewählt als der doppelte Krümmungsradius der U-Form der Blattfedern 7·Longitudinal edges 11 of the field magnets 4 lying next to one another are selected to be equal to or smaller than twice the radius of curvature the U-shape of the leaf springs 7

Zwei gegenüberliegende Blattfedern 7 umgeben außerdem noch zwei durch das Polgehäuse 1 geführte Schraubenbolzen 15, mit denen in an sich bekannter Weise nicht dargestellte Gehäusedeckel und Lagerteile mit dem Polgehäuse 1 verbunden sind.Two opposite leaf springs 7 also surround two screw bolts 15 guided through the pole housing 1 which housing cover and bearing parts (not shown) are connected to the pole housing 1 in a manner known per se.

Im Polgehäuse 1 können auch zwei Zapfen 2 für jeden Feldmagneten 4 ausgebildet sein. Bei Polgehäusen 1 größeren Durchmessers und somit flacherer Anlageseite 5 der Feldmagnete 4 ergibt sich dadurch eine leichtere Fixierung.In the pole housing 1 there can also be two pins 2 for each field magnet 4 be formed. In the case of pole housings 1 with a larger diameter and thus flatter contact side 5 of the field magnets 4 This results in easier fixation.

Die Zapfen 2, Ausnehmungen 3 und Facetten 12 sind einfach und ohne kostspielige Vorrichtungen beim Herstellen der Feldmagnete auszubilden. Für die eingesprengten Blattfedern 7» die ebenfalls eine einfache und leicht herzustellende Form aufweisen, erübrigen sich alle bisher notwendigen Haltemittel. TÜt den beschriebenen Blattfedern 7 sind die Feldmagnete 4 schüttelfest im Polgehäuse 1 gehalten.The pegs 2, recesses 3 and facets 12 can be formed easily and without expensive devices when producing the field magnets. For the spring-in leaf springs 7 ', which likewise have a simple and easy-to-manufacture shape, all of the holding means previously required are unnecessary. T Üt the leaf springs 7 described, the field magnets 4 are held in the pole housing 1 in a shake-proof manner.

509810/0479509810/0479

Claims (4)

AnsprücheExpectations Δό k ΔΔό k Δ M. Haltevorrichtung für Feldmagnete im Gehäuse elektrischer -Naschinen, insbesondere Andrehmotoren von Brennkraftrtiaschinen, dadurch gekennzeichnet, daß im Gehäuse (1) für jeden Feldmagneten (4) mindestens ein radialgerichteter Zapfen (2) ausgebildet ist, der in einer Ausnehmung (6) des zugehörigen Feldmagneten (4) aufgenommen ist, und daß zwischen den Feldmagneten (4) Federn (7) untergebracht sind, deren Endabschnitte eine Längskante (11) jeweils zweier benachbarter Feldmagnete (4) übergreifen. M. Holding device for field magnets in the electrical housing Machines, in particular starting motors of internal combustion engines, characterized in that in the housing (1) for each field magnet (4) at least one radially directed pin (2) is formed, which is in a Recess (6) of the associated field magnet (4) is received, and that between the field magnets (4) springs (7) are housed, the end sections of which overlap a longitudinal edge (11) of two adjacent field magnets (4). 2. Haltevorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Zapfen (2) des Gehäuses (1) das Volumen von ihnen am Außenmantel des Gehäuses (1) gegenüberliegenden Ausnehmungen (3) haben.2. Holding device according to claim 1, characterized in that the pin (2) of the housing (1) the volume of them have opposite recesses (3) on the outer jacket of the housing (1). 3. Haltevorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Federn (7) U-förmige Blattfedern sind, deren die Längskanten (11) übergreifende Schenkel (13) im Abschnitt (14·), welcher an den Längskanten (11) der Feldmagnete (4) tvnliegt, nach außen gebogen sind.3. Holding device according to claim 1 or 2, characterized in that that the springs (7) are U-shaped leaf springs, whose legs (13) overlap the longitudinal edges (11) in the Section (14 ·), which on the longitudinal edges (11) of the field magnets (4) are adjacent, are bent outwards. 4. Haltevorrichtung nach Anspruch 35 dadurch gekennzeichnet, daß die Federschenkel (13, 14) in facettenförmigen Ausschnitten (12) der Längskanten (11) an den Feldmagneten (4) anliegen. -.V7 4. Holding device according to claim 3 5, characterized in that the spring legs (13, 14) bear against the field magnets (4) in facet-shaped cutouts (12) of the longitudinal edges (11). -.V 7 509810/0479509810/0479 LeerseiteBlank page
DE19732342499 1973-08-23 1973-08-23 HOLDING DEVICE FOR FIELD MAGNETS IN THE HOUSING OF ELECTRIC MACHINERY Ceased DE2342499A1 (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
DE19732342499 DE2342499A1 (en) 1973-08-23 1973-08-23 HOLDING DEVICE FOR FIELD MAGNETS IN THE HOUSING OF ELECTRIC MACHINERY
FR7345326A FR2241901B3 (en) 1973-08-23 1973-12-18
BR685274A BR7406852D0 (en) 1973-08-23 1974-08-20 PERFECT FIXING DEVICE FOR FIELD IMAGES ON ELECTRIC MACHINES HOUSING
JP49096048A JPS5049602A (en) 1973-08-23 1974-08-21
IT2645474A IT1020062B (en) 1973-08-23 1974-08-21 FIXING DEVICE FOR FIELD MAGNES IN THE HOUSING OF ELECTRIC MACHINES
GB3685374A GB1477878A (en) 1973-08-23 1974-08-22 Means for mounting field magnets in the housing of an electrical machine
ES429483A ES429483A1 (en) 1973-08-23 1974-08-23 Means for mounting field magnets in the housing of an electrical machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19732342499 DE2342499A1 (en) 1973-08-23 1973-08-23 HOLDING DEVICE FOR FIELD MAGNETS IN THE HOUSING OF ELECTRIC MACHINERY

Publications (1)

Publication Number Publication Date
DE2342499A1 true DE2342499A1 (en) 1975-03-06

Family

ID=5890462

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19732342499 Ceased DE2342499A1 (en) 1973-08-23 1973-08-23 HOLDING DEVICE FOR FIELD MAGNETS IN THE HOUSING OF ELECTRIC MACHINERY

Country Status (7)

Country Link
JP (1) JPS5049602A (en)
BR (1) BR7406852D0 (en)
DE (1) DE2342499A1 (en)
ES (1) ES429483A1 (en)
FR (1) FR2241901B3 (en)
GB (1) GB1477878A (en)
IT (1) IT1020062B (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4338533A (en) * 1977-08-24 1982-07-06 Siemens Aktiengesellschaft Electric machine excited by permanent magnets
EP0058234A2 (en) * 1981-02-16 1982-08-25 Siemens Aktiengesellschaft Stator for a permanent magnet excited electrical machine
DE19538483A1 (en) * 1995-10-17 1997-04-24 Bosch Gmbh Robert Method for producing a joint connection, in particular between excitation poles and pole housing of an electric machine, and machine produced by the method
US6903475B2 (en) 2001-02-23 2005-06-07 Black & Decker Inc. Stator assembly with an overmolding that secures magnets to a flux ring and the flux ring to a stator housing
US7038343B2 (en) 2002-02-22 2006-05-02 Black & Decker Inc. Field assembly for a motor and method of making same
DE19918521B4 (en) * 1999-04-06 2006-08-24 Bühler Motor GmbH Arrangement for fastening permanent magnet segments

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5840422B2 (en) * 1975-07-25 1983-09-06 株式会社日立製作所 magnet generator rotor
JPS585420Y2 (en) * 1976-11-24 1983-01-29 株式会社安川電機 Stator of permanent magnet DC machine
FR2462804A2 (en) * 1979-07-25 1981-02-13 Ferodo Sa Small permanent magnet DC motor - has yoke used also as clamping ring for stator housing halves
FR2447631A1 (en) * 1979-01-25 1980-08-22 Ducellier & Cie INDUCING CIRCUIT OF A ROTATING ELECTRIC MACHINE, IN PARTICULAR OF A MOTOR VEHICLE
FR2488749A1 (en) * 1980-08-13 1982-02-19 Ducellier & Cie Magnetic mounting for electric starter motor - uses section of motor casing forced into dove-tail shaped hole in outer surface of magnet
US4636107A (en) * 1982-03-30 1987-01-13 Plus Manufacturing Co., Inc. Reformed in place resilient retention springs
FR2572862B1 (en) * 1984-11-07 1988-08-12 Peugeot Aciers Et Outillage STATOR OF A ROTATING ELECTRIC MACHINE, INCLUDING IN PARTICULAR A CYLINDRICAL CYLINDER HEAD IN WHICH PERMANENT MAGNETS ARE FIXED, METHOD AND APPARATUS FOR MOUNTING A STATOR
JPH0724450B2 (en) * 1984-12-06 1995-03-15 日本電装株式会社 Magnet fixing structure for rotating electrical machines
GB2191638B (en) * 1986-06-14 1990-12-19 Dobson Park Ind Magnet assemblies
GB2209880B (en) * 1987-09-16 1991-11-06 Johnson Electric Ind Mfg Magnet retainer in an electric motor
ES2337365T3 (en) * 2005-04-22 2010-04-23 Infranor Holding S.A. PERMANENT MAGNET FIXING SYSTEM.
CN107196424A (en) * 2017-05-16 2017-09-22 浙江爱德利科技股份有限公司 A kind of magnetic material

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4338533A (en) * 1977-08-24 1982-07-06 Siemens Aktiengesellschaft Electric machine excited by permanent magnets
EP0058234A2 (en) * 1981-02-16 1982-08-25 Siemens Aktiengesellschaft Stator for a permanent magnet excited electrical machine
EP0058234A3 (en) * 1981-02-16 1983-01-19 Siemens Aktiengesellschaft Stator for a permanent magnet excited electrical machine
DE19538483A1 (en) * 1995-10-17 1997-04-24 Bosch Gmbh Robert Method for producing a joint connection, in particular between excitation poles and pole housing of an electric machine, and machine produced by the method
DE19918521B4 (en) * 1999-04-06 2006-08-24 Bühler Motor GmbH Arrangement for fastening permanent magnet segments
US6903475B2 (en) 2001-02-23 2005-06-07 Black & Decker Inc. Stator assembly with an overmolding that secures magnets to a flux ring and the flux ring to a stator housing
US6983529B2 (en) 2001-02-23 2006-01-10 Black & Decker Inc. Stator assembly with an overmolding that secures magnets to a flux ring and the flux ring to a stator housing
US7088024B2 (en) 2001-02-23 2006-08-08 Black & Decker Inc. Field assembly for a motor and method of making same
US7091642B2 (en) 2001-02-23 2006-08-15 Black & Decker Inc. Field assembly for a motor and method of making same
US7119469B2 (en) 2001-02-23 2006-10-10 Black & Decker Inc. Stator assembly with an overmolding that secures magnets to a flux ring and the flux ring to a stator housing
US7038343B2 (en) 2002-02-22 2006-05-02 Black & Decker Inc. Field assembly for a motor and method of making same

Also Published As

Publication number Publication date
FR2241901B3 (en) 1976-10-15
BR7406852D0 (en) 1975-06-17
GB1477878A (en) 1977-06-29
ES429483A1 (en) 1976-09-01
IT1020062B (en) 1977-12-20
FR2241901A1 (en) 1975-03-21
JPS5049602A (en) 1975-05-02

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