US1990678A - Stationary armature for small electric generators - Google Patents
Stationary armature for small electric generators Download PDFInfo
- Publication number
- US1990678A US1990678A US638482A US63848232A US1990678A US 1990678 A US1990678 A US 1990678A US 638482 A US638482 A US 638482A US 63848232 A US63848232 A US 63848232A US 1990678 A US1990678 A US 1990678A
- Authority
- US
- United States
- Prior art keywords
- armature
- small electric
- electric generators
- iron
- coil
- 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 - Lifetime
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
- H02K21/12—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets
- H02K21/22—Synchronous 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
- H02K21/227—Synchronous 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
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K2201/00—Specific aspects not provided for in the other groups of this subclass relating to the magnetic circuits
- H02K2201/12—Transversal flux machines
Definitions
- the invention relates to a stationary armature for small electric generators.
- the main object of the invention is to obtain such an armature with at least four poles or more,
- the armature according to the invention is of the type comprising only one coil traversed by the totality of the flux, the core of the armature being formed by pieces of sheet-iron folded and twisted in a suitable manner.
- the invention is so arranged that the core iron sheets present to the air-gap their rolled surface and that each folded and twisted iron sheet traverses the coil and forms with its ends at least one pole in opposition to which one or several poles of contrary polarity are found.
- Another object of the invention is to render possible the enlargement of the iron section of the core of the armature by folding the iron-sheets in two again one or several times.
- the drawing shows a form of execution, given by way of example, of an armature for small electric generators according to the invention.
- the armature is formed by the armature-coil 1 and by a certain number of .core iron sheets, only two of which, the core iron sheets 2 and 3, are shown.
- the core iron sheet 2 is formed by a sheet iron strip which has been folded in such a way that its ends form the poles 4, 5 whilst its middle part is passed through the coil 1. If the section of the core iron sheet had to be enlarged, i. e. the section presented to the flux to be doubled, for example,
- the poles are not formed by the edge 6 of the iron sheets but by their rolled surface 7 delimiting with the field-poles 8 the airgap 9.
- the construction is very simple and allows one to place many poles the ones next to the others in a very narrow space.
- the folded width of the ends of the sheet iron forming the pole elements corresponds to the width of the adjoining field poles 8.
- a stationary armature for small electric generators including an armature coil, a core constructed of a piece of sheet iron curved about the coil, the ends of the core extending from the coil toform pole pieces of opposite polarity, said extending portions of the sheet iron core being folded.
- a stationary armature for small electric generators including an armature coil, 9. core constructed of a piece of sheet iron having folded end portions forming pole pieces of opposite polarity, the mid-portion of the core being curved about the armature coil.
- a stationary armature for small electric generators including an armature coil, 3. core constructed of a plurality of sheet iron pieces curved about the coil, the ends of each of the sheet iron pieces extending from the coil to-form pole pieces of opposite polarity, all of the'extending pole forming pieces being folded at least once.
Description
Feb. 12, 1935. VAUCHER 1,990,678
STATIONARY ARMATURE FOR SMALL ELECTRIC GENERATORS Filed Oct. 19, 1932 IN VENTOR Andre Va char 5) hi ATTORNEY Patented Feb. 12, 1935 UNITED STATES STATIONARY ARMATURE FOR, SMALL ELECTRIC GENERATORS Andre Vaucher, Carouge, Geneva, Switzerland,- asslgnor to firm Magnetos Lucifer Socit Anonyme, Carouge, G
Application October 19 In Germany N 3 Claims.
The invention relates to a stationary armature for small electric generators.
The main object of the invention is to obtain such an armature with at least four poles or more,
eight, ten, twelve or even more which may be utilized for the lighting of bicycles or for pocket lamps for example.
The armature according to the invention is of the type comprising only one coil traversed by the totality of the flux, the core of the armature being formed by pieces of sheet-iron folded and twisted in a suitable manner.
In order to increase the number of poles without difiiculty lower the reluctance of the armal5 ture and diminish the resistance of the coil, the invention is so arranged that the core iron sheets present to the air-gap their rolled surface and that each folded and twisted iron sheet traverses the coil and forms with its ends at least one pole in opposition to which one or several poles of contrary polarity are found.
Another object of the invention is to render possible the enlargement of the iron section of the core of the armature by folding the iron-sheets in two again one or several times.-
The drawing shows a form of execution, given by way of example, of an armature for small electric generators according to the invention.
According to the drawing, the armature is formed by the armature-coil 1 and by a certain number of .core iron sheets, only two of which, the core iron sheets 2 and 3, are shown. The core iron sheet 2 is formed by a sheet iron strip which has been folded in such a way that its ends form the poles 4, 5 whilst its middle part is passed through the coil 1. If the section of the core iron sheet had to be enlarged, i. e. the section presented to the flux to be doubled, for example,
eneva, Switzerland 1932, Serial No. 638,482 ovember 21, 1931 one could utilize a sheet iron strip of double width, that one would, first of all, fold in two again in the way of its length, as is the case for strip 3.
As the figure shows, the poles are not formed by the edge 6 of the iron sheets but by their rolled surface 7 delimiting with the field-poles 8 the airgap 9. The construction is very simple and allows one to place many poles the ones next to the others in a very narrow space.
The folded width of the ends of the sheet iron forming the pole elements corresponds to the width of the adjoining field poles 8.
What I claim as my invention and desire to secure by Letters Patent of the United States of America is:
1. A stationary armature for small electric generators, including an armature coil, a core constructed of a piece of sheet iron curved about the coil, the ends of the core extending from the coil toform pole pieces of opposite polarity, said extending portions of the sheet iron core being folded.
2. A stationary armature for small electric generators, including an armature coil, 9. core constructed of a piece of sheet iron having folded end portions forming pole pieces of opposite polarity, the mid-portion of the core being curved about the armature coil.
3. A stationary armature for small electric generators, including an armature coil, 3. core constructed of a plurality of sheet iron pieces curved about the coil, the ends of each of the sheet iron pieces extending from the coil to-form pole pieces of opposite polarity, all of the'extending pole forming pieces being folded at least once.
ANDRE VAUCHER.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE1990678X | 1931-11-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US1990678A true US1990678A (en) | 1935-02-12 |
Family
ID=7897893
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US638482A Expired - Lifetime US1990678A (en) | 1931-11-21 | 1932-10-19 | Stationary armature for small electric generators |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US1990678A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2764802A (en) * | 1953-07-17 | 1956-10-02 | Gen Electric | Method of assembling a field coil on a stator |
| US4136296A (en) * | 1977-06-15 | 1979-01-23 | General Electric Company | High-speed, laminated rotor for homopolar inductor alternator |
| US5859487A (en) * | 1997-05-30 | 1999-01-12 | Delta Electronics, Inc. | Stator structure of motor and its forming method |
-
1932
- 1932-10-19 US US638482A patent/US1990678A/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2764802A (en) * | 1953-07-17 | 1956-10-02 | Gen Electric | Method of assembling a field coil on a stator |
| US4136296A (en) * | 1977-06-15 | 1979-01-23 | General Electric Company | High-speed, laminated rotor for homopolar inductor alternator |
| US5859487A (en) * | 1997-05-30 | 1999-01-12 | Delta Electronics, Inc. | Stator structure of motor and its forming method |
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