CH213797A - Lighting dynamo, in particular for bicycles. - Google Patents

Lighting dynamo, in particular for bicycles.

Info

Publication number
CH213797A
CH213797A CH213797DA CH213797A CH 213797 A CH213797 A CH 213797A CH 213797D A CH213797D A CH 213797DA CH 213797 A CH213797 A CH 213797A
Authority
CH
Switzerland
Prior art keywords
stator
rotor
armature
elements
dynamo
Prior art date
Application number
Other languages
French (fr)
Inventor
Mathez Gerald
Original Assignee
Mathez Gerald
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 Mathez Gerald filed Critical Mathez Gerald
Publication of CH213797A publication Critical patent/CH213797A/en

Links

Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K21/00Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
    • H02K21/12Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets
    • H02K21/22Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating around the armatures, e.g. flywheel magnetos
    • H02K21/227Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating around the armatures, e.g. flywheel magnetos having an annular armature coil
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K2201/00Specific aspects not provided for in the other groups of this subclass relating to the magnetic circuits
    • H02K2201/12Transversal flux machines

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)

Description

  

  Dynamo d'éclairage, notamment pour bicyclettes.    L'invention a pour objet une dynamo  d'éclairage, notamment pour bicyclettes.  



  Cette dynamo     comporte    un stator et un  rotor; elle est caractérisée en ce que l'un au  moins de     ces    organes comprend au moins un  élément d'armature en métal possédant des  épanouissements polaires s'étendant parallè  lement et concentriquement à l'axe du stator.  



  Ces épanouissements sont formés de pré  férence par des dents ou des languettes fai  sant partie intégrante de l'élément d'arma  ture façonnés, par exemple, à l'emboutissoir.  



  Le dessin annexé montre, à titre d'exem  ple, une forme d'exécution de l'objet de l'in  vention.  



  La fig. 1 représente la dynamo en coupe       longitudinale    partielle;  la     fig.    2 en montre une coupe transversale  suivant la     ligne        II-II    de la     fig.    1;  la     fig.        3r    représente, en élévation, le rotor,  respectivement l'aimant;  la     fig.    4 montre, en plan, une ébauche  d'un élément d'armature du stator formé par  un induit d'induction.    Dans une carcasse 5 est monté un induit ;  fixe formant le stator. Cet induit     comporte     une bobine d'induction 6     entourée    d'une  armature formée de deux éléments en fer  doux 7, respectivement 8.

    



  La bobine 6 est engagée par sa forure, sur  une tige 7" de l'élément d'armature 7 et  assemblée rigidement avec les deux éléments  7 et 8 et la carcasse 5 au moyen d'un  écrou 13.  



  Les éléments d'armature 7 et 8 possèdent  chacun quatre épanouissements polaires 7',  respectivement 8' s'étendant concentrique  ment autour de la bobine 6, parallèlement à  l'axe de     celle-ci,    de manière que chaque  épanouissement de l'un des     éléments    d'arma  ture soit engagé entre deux épanouissements  de l'autre élément et forme un pôle.  



  Ces épanouissements 7, respectivement 8'  peuvent être plus. ou moins     nombreux,    cha  que élément d'armature en comportera au  moins     deux,    de sorte que l'induit possédera  au moins quatre pôles. Chaque élément -d'ar  mature 7, respectivement 8 est venu d'une           seule    pièce en fer doux, ses     épanouissements     polaires étant     constitués    par des dents ou des       languettes        faisant    partie intégrante de l'élé  ment et sont obtenues de     préférence    par em  boutissage.

   A     cet    effet, on     découpe,    par exem  ple dans une .rondelle de tôle, une     ébauche     (8) comme représenté en fig. 4. Cette ébauche  est ensuite façonnée à 'la presse à emboutir,  de manière que les quatre bras soient recour  bés à angle droit et forment les épanouisse  ments polaires de l'élément d'armature. Les  épanouissements sont de préférence moins  larges à leur     extrémité    qu'à leur base et  arrondis à leur extrémité.  



  Autour de l'induit fixe est disposé le ro  tor 9     constitué    par un aimant en forme de  cloche et dont les pôles sont constitués par  des dents ou     bras    10     s'étendant    coaxiale  ment autour de l'induit. Ce rotor, en acier,  est fixé sur un arbre de commande 11 monté  dans des paliers à billes 12 (dont un seul est       représenté    au dessin) de la carcasse 5.  



       Le    rotor 9 peut être fabriqué de la même  manière que les éléments d'armature de l'in  duit, c'est-à-dire par découpage et emboutis  sage.  



  La dynamo décrite offre     l'avantage    d'être  à la fois d'une remarquable simplicité de  construction et d'un bon rendement électro  moteur. Elle comporte un induit à un seul  bobinage qui     peut    être monté     d'avance    sur  gabarit, d'où résulte une économie de     main-          d'aeuvre.  



  Lighting dynamo, in particular for bicycles. The subject of the invention is a lighting dynamo, in particular for bicycles.



  This dynamo has a stator and a rotor; it is characterized in that at least one of these members comprises at least one metal frame element having pole shoes extending parallel and concentrically to the axis of the stator.



  These openings are preferably formed by teeth or tongues forming an integral part of the armouring element shaped, for example, by the stamper.



  The accompanying drawing shows, by way of example, an embodiment of the object of the invention.



  Fig. 1 shows the dynamo in partial longitudinal section; fig. 2 shows a cross section along the line II-II of FIG. 1; fig. 3r represents, in elevation, the rotor, respectively the magnet; fig. 4 shows, in plan, a blank of a frame element of the stator formed by an induction armature. In a frame 5 is mounted an armature; fixed forming the stator. This armature comprises an induction coil 6 surrounded by a frame formed of two soft iron elements 7, respectively 8.

    



  The coil 6 is engaged by its bore, on a rod 7 "of the frame element 7 and rigidly assembled with the two elements 7 and 8 and the frame 5 by means of a nut 13.



  The armature elements 7 and 8 each have four pole shoes 7 ', respectively 8' extending concentrically around the coil 6, parallel to the axis thereof, so that each extension of one of the armature elements is engaged between two openings of the other element and forms a pole.



  These openings 7, respectively 8 'can be more. or less, each frame element will have at least two, so that the armature will have at least four poles. Each mature ar element 7, respectively 8 comes in a single piece of soft iron, its pole shoes being constituted by teeth or tongues forming an integral part of the element and are preferably obtained by cutting.

   For this purpose, a blank (8) is cut, for example from a sheet metal washer, as shown in FIG. 4. This blank is then shaped in the stamping press so that the four arms are curved at right angles and form the pole shoes of the frame member. The openings are preferably less wide at their end than at their base and rounded at their end.



  Around the fixed armature is arranged the ro tor 9 formed by a bell-shaped magnet and the poles of which are formed by teeth or arms 10 extending coaxially around the armature. This rotor, made of steel, is fixed on a control shaft 11 mounted in ball bearings 12 (only one of which is shown in the drawing) of the frame 5.



       The rotor 9 can be manufactured in the same way as the frame elements of the lead, that is to say by cutting and stamping wise.



  The dynamo described offers the advantage of being both remarkably simple in construction and good electro-motor efficiency. It comprises an armature with a single winding which can be mounted in advance on a template, resulting in savings in labor.

 

Claims (1)

REVENDICATION Dynamo d'éclairage, notamment pour bi cyclettes, comportant un stator et un rotor; caractérisée en ce que l'un au moins de ces deux organes comprend au moins un élément d'armature en métal possédant des épanouis sements polaires s'étendant parallèlement et concentriquement à l'axe du stator. SOUS-REVENDICATIONS 1. CLAIM Lighting dynamo, in particular for twin cycles, comprising a stator and a rotor; characterized in that at least one of these two members comprises at least one metal frame element having pole shoes extending parallel and concentrically to the axis of the stator. SUB-CLAIMS 1. Dynamo d'éclairage selon la revendi cation, caractérisée en ce que le stator est formé par un induit fixe comprenant une bobine d'induction (6) entourée d'une arma ture à deux éléments en fer doux (7, 8), les épanouissements polaires (7', & ') de l'un de ces éléments étant engagés entre deux épa nouissements de l'autre élément. 2. Dynamo d'éclairage selon la revendi cation, caractérisée en ce que le rotor (9) comprend un seul élément d'armature en acier et constituant l'aimant, les épanouisse ments polaires (10) de cet élément s'étendant sur les épanouissements des éléments de l'ar mature du rotor. 3. Lighting dynamo according to claim, characterized in that the stator is formed by a fixed armature comprising an induction coil (6) surrounded by an armature with two soft iron elements (7, 8), the openings poles (7 ', &') of one of these elements being engaged between two shoulders of the other element. 2. Lighting dynamo according to revendi cation, characterized in that the rotor (9) comprises a single steel frame element and constituting the magnet, the pole shoes (10) of this element extending over the development of the elements of the mature ar of the rotor. 3. Dynamo selon la revendication, dans laquelle chaque élément d'armature est formé d'une seule pièce, les épanouissements po laires étant façonnés à 'l'emboutissoir. Dynamo according to claim, in which each frame member is formed in one piece, the poles are shaped by the stamper.
CH213797D 1940-03-20 1940-03-20 Lighting dynamo, in particular for bicycles. CH213797A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH213797T 1940-03-20

Publications (1)

Publication Number Publication Date
CH213797A true CH213797A (en) 1941-03-15

Family

ID=4448407

Family Applications (1)

Application Number Title Priority Date Filing Date
CH213797D CH213797A (en) 1940-03-20 1940-03-20 Lighting dynamo, in particular for bicycles.

Country Status (1)

Country Link
CH (1) CH213797A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0299512A3 (en) * 1987-07-16 1989-10-11 Minebea Co Ltd Brushless dc motor
EP0847131A1 (en) * 1996-12-05 1998-06-10 General Electric Company Motor with external rotor and method for assembly
US5962938A (en) 1997-10-21 1999-10-05 General Electric Company Motor with external rotor
US6118198A (en) 1999-03-25 2000-09-12 General Electric Company Electric motor with ice out protection
US6133666A (en) 1999-03-25 2000-10-17 General Electric Company Electric motor with a stator including a central locator
US6147465A (en) 1999-03-25 2000-11-14 General Electric Company Microprocessor controlled single phase motor with external rotor having integral fan
US6232687B1 (en) 1999-03-25 2001-05-15 General Electric Company Electric motor having snap connection assembly
US6271609B1 (en) 1999-03-25 2001-08-07 General Electric Company Programmable electric motor and method of assembly

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0299512A3 (en) * 1987-07-16 1989-10-11 Minebea Co Ltd Brushless dc motor
EP0847131A1 (en) * 1996-12-05 1998-06-10 General Electric Company Motor with external rotor and method for assembly
US5986379A (en) 1996-12-05 1999-11-16 General Electric Company Motor with external rotor
US6239532B1 (en) 1996-12-05 2001-05-29 General Electric Company Motor with external rotor
US5962938A (en) 1997-10-21 1999-10-05 General Electric Company Motor with external rotor
US6118198A (en) 1999-03-25 2000-09-12 General Electric Company Electric motor with ice out protection
US6133666A (en) 1999-03-25 2000-10-17 General Electric Company Electric motor with a stator including a central locator
US6147465A (en) 1999-03-25 2000-11-14 General Electric Company Microprocessor controlled single phase motor with external rotor having integral fan
US6232687B1 (en) 1999-03-25 2001-05-15 General Electric Company Electric motor having snap connection assembly
US6271609B1 (en) 1999-03-25 2001-08-07 General Electric Company Programmable electric motor and method of assembly

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