FR2742935A1 - ELECTRIC MOTOR WITH STATOR GREEN BETWEEN TWO MOITIES OF THE HOUSING - Google Patents
ELECTRIC MOTOR WITH STATOR GREEN BETWEEN TWO MOITIES OF THE HOUSING Download PDFInfo
- Publication number
- FR2742935A1 FR2742935A1 FR9615502A FR9615502A FR2742935A1 FR 2742935 A1 FR2742935 A1 FR 2742935A1 FR 9615502 A FR9615502 A FR 9615502A FR 9615502 A FR9615502 A FR 9615502A FR 2742935 A1 FR2742935 A1 FR 2742935A1
- Authority
- FR
- France
- Prior art keywords
- supports
- stator
- electric motor
- housing
- screw
- 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.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/15—Mounting arrangements for bearing-shields or end plates
Abstract
Moteur électrique avec un paquet de tôles constituant le stator, qui supporte un enroulement de stator et qui est serré entre deux moitiés de boîtier au moyen de vis ou analogues, disposées de façon régulièrement répartie sur le pourtour, caractérisé en ce que: l'on prévoit pour chaque vis (12) deux appuis (11) des moitiés du boîtier sur le paquet de tôles et qu'on les dispose de façon symétrique des deux côtés de la vis correspondante (12).Electric motor with a bundle of sheets constituting the stator, which supports a stator winding and which is clamped between two housing halves by means of screws or the like, arranged regularly distributed around the periphery, characterized in that: one provides for each screw (12) two supports (11) of the housing halves on the sheet metal pack and that they are arranged symmetrically on both sides of the corresponding screw (12).
Description
Etat de la technique.State of the art
L'invention concerne un moteur électrique avec un The invention relates to an electric motor with a
paquet de tôles constituant le stator, qui supporte un enroule- package of laminations constituting the stator, which supports a winding
ment de stator et qui est serré entre deux moitiés de boîtier au moyen de vis ou analogues, disposées de façon régulièrement répartie sur le pourtour. Dans le cas d'un moteur électrique de ce type connu, par le document DE-A-2 814 062, le stator est stator and which is clamped between two housing halves by means of screws or the like, arranged evenly distributed around the periphery. In the case of an electric motor of this type known from DE-A-2 814 062, the stator is
réalisé, comme on l'a représenté schématiquement sur les figu- realized, as schematically represented in the figures
res 1 et 2, en tôles individuelles (lamelles ou molettes). Pour cette raison, elles ne sont pas aussi rigides que des pièces massives de même volume. Si on les serre entre les flasques de montage 13 et 14, alors elles se voilent, en partant des appuis 11, quand on serre les vis 12, on ne modifie pas beaucoup cela 1 and 2, in individual sheets (slats or rolls). For this reason, they are not as rigid as massive pieces of the same volume. If they are clamped between the mounting flanges 13 and 14, then they are veiled, starting from the supports 11, when we tighten the screws 12, we do not change much that
en faisant faire tout le tour à l'appui. Les flasques de mon- by doing all the trick to support. The flanges of
tage 13 et 14 sont flexibles (aluminium, construction allégée) de telle sorte que l'on n'obtient aussi dans ce cas des appuis que dans la zone des appuis 11. L'étirage se forme à l'intérieur du stator, le perçage 15 n'est pas rond ce que l'on a représenté d'une manière exagérée à la figure 1. Ceci conduit 13 and 14 are flexible (aluminum, lightened construction) so that it is also obtained in this case supports only in the area of the supports 11. The drawing is formed inside the stator, drilling 15 is not round what has been represented in an exaggerated way in Figure 1. This leads
à une perte de puissance et à une augmentation du bruit. a loss of power and an increase in noise.
D'une façon tout à fait différente on a essayé d'atteindre le but dans le cas de générateurs compacts selon le document DE-A 37 04 157. Dans ce document on serre le stator sur des lamelles centrales ayant un diamètre plus grand, ce qui In a completely different way, we have tried to achieve the goal in the case of compact generators according to DE-A 37 04 157. In this document the stator is tightened on central lamellae having a larger diameter, this who
conduit toutefois à un serrage plus instable. however, leads to a more unstable tightening.
Avantages de l'invention.Advantages of the invention
L'invention du serrage du stator est caractérisée en ce que l'on prévoit pour chaque vis deux appuis des moitiés du boîtier sur le paquet de tôles et qu'on les dispose de façon The invention of the tightening of the stator is characterized in that it is provided for each screw two supports of the housing halves on the package of plates and that they are arranged so
symétrique des deux côtés de la vis correspondante. Cette réa- symmetrical on both sides of the corresponding screw. This reality
lisation du serrage du stator a l'avantage que l'on minimise les conséquences du serrage non uniforme qui est effectué au moyen des vis, et les appuis sont disposés en état répartis The advantage of the stator clamping is that the consequences of nonuniform clamping by means of the screws are minimized and the supports are arranged in the distributed state.
avec les mêmes écartements sur le pourtour. with the same spacings on the perimeter.
La figure 3 représente la solution selon Figure 3 shows the solution according to
l'invention d'une manière schématique. the invention in a schematic manner.
Exemple de réalisation.Example of embodiment.
Il est prévu pour chaque vis 12 deux appuis 11, c'est-à-dire que l'on a ainsi pour quatre vis huit appuis. On exerce ainsi seulement la moitié de la pression superficielle sur les appuis 11 et le nombre double des appuis 11 répartit la déformation alors plus petite de façon régulière sur le pour- tour. Comme des essais l'ont montré, le perçage du stator reste dans ce cas beaucoup plus rond, la déformation se réduit à en- viron un quart de la valeur initiale. La déformation qu'en10 principe on ne peut pas éviter demeure beaucoup plus petite que It is provided for each screw 12 two supports 11, that is to say that there is thus for four screws eight supports. Thus, only half of the surface pressure is exerted on the supports 11 and the double number of the supports 11 distributes the deformation then smaller in a regular manner on the circumference. As tests have shown, the drilling of the stator remains in this case much rounder, the deformation is reduced to about a quarter of the initial value. The distortion that in principle can not be avoided remains much smaller than
jusqu'ici, quand on prévoit pour chaque vis 12 deux appuis 11. so far, when we plan for each screw 12 two supports 11.
Dans ce cas on dispose alors les appuis 11 de façon qu'ils soient répartis avec le même écartement sur le pourtour. Mettre plus d'appuis 11 pour chaque vis 12 n'a pas de sens, car alors la force de serrage exercée par les vis n'est plus répartie ré- gulièrement. La répartition régulière de la force exercée par In this case we then have the supports 11 so that they are distributed with the same spacing around the periphery. Putting more supports 11 for each screw 12 is meaningless, because then the clamping force exerted by the screws is no longer distributed regularly. The regular distribution of the force exerted by
les vis est la condition préalable pour que la déformation soit réduite au minimum. the screws is the prerequisite for the deformation to be minimized.
Claims (2)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19547610A DE19547610A1 (en) | 1995-12-20 | 1995-12-20 | Electrical machine e.g. compact generator |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2742935A1 true FR2742935A1 (en) | 1997-06-27 |
FR2742935B1 FR2742935B1 (en) | 1998-08-28 |
Family
ID=7780676
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR9615502A Expired - Fee Related FR2742935B1 (en) | 1995-12-20 | 1996-12-17 | ELECTRIC MOTOR WITH GREEN STATOR BETWEEN TWO HALVES OF THE HOUSING |
Country Status (3)
Country | Link |
---|---|
DE (1) | DE19547610A1 (en) |
FR (1) | FR2742935B1 (en) |
IT (1) | IT1302983B1 (en) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2011060A (en) * | 1934-09-24 | 1935-08-13 | Leland Electric Co | Stator |
US2023259A (en) * | 1932-03-17 | 1935-12-03 | Fairbanks Morse & Co | Electric machine |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2769933A (en) * | 1953-09-04 | 1956-11-06 | Ballman Engineering Company | Stator construction |
US2810847A (en) * | 1956-06-08 | 1957-10-22 | Redmond Company Inc | Electric motor field construction |
DE1890276U (en) * | 1963-02-05 | 1964-04-02 | Siemens Ag | STAND PLATE PACKAGE FOR ELECTRIC MACHINES. |
DE3704157C2 (en) * | 1986-03-15 | 1996-10-02 | Bosch Gmbh Robert | Device for reducing the noise of electrical machines |
-
1995
- 1995-12-20 DE DE19547610A patent/DE19547610A1/en not_active Withdrawn
-
1996
- 1996-12-05 IT IT1996MI002554A patent/IT1302983B1/en active IP Right Grant
- 1996-12-17 FR FR9615502A patent/FR2742935B1/en not_active Expired - Fee Related
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2023259A (en) * | 1932-03-17 | 1935-12-03 | Fairbanks Morse & Co | Electric machine |
US2011060A (en) * | 1934-09-24 | 1935-08-13 | Leland Electric Co | Stator |
Also Published As
Publication number | Publication date |
---|---|
FR2742935B1 (en) | 1998-08-28 |
DE19547610A1 (en) | 1997-06-26 |
IT1302983B1 (en) | 2000-10-18 |
ITMI962554A0 (en) | 1996-12-05 |
ITMI962554A1 (en) | 1998-06-05 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP0462037B1 (en) | Underwater electro-acoustic transducer | |
EP1142085B1 (en) | Rotating electric machine with improved double excitation | |
WO1998048502A1 (en) | Improved electrical machine with double excitation | |
FR2742935A1 (en) | ELECTRIC MOTOR WITH STATOR GREEN BETWEEN TWO MOITIES OF THE HOUSING | |
FR2562734A1 (en) | STATOR FOR SMALL ELECTRIC MOTORS | |
EP1385740A1 (en) | Satellite solar generator structure comprising bracing elements between panels | |
CN1130737C (en) | Current transformer for gas-insulated switchgear | |
EP0008250A1 (en) | Rotor for an electric machine with salient poles | |
EP3522334B1 (en) | Magnetic circuit for element of a rotating electric machine, associated method and electric machine | |
FR2502835A1 (en) | TOROIDAL CORE COIL WITH CURRENT COMPENSATION | |
JPH07192930A (en) | Belleville-spring clamp device for transformer core with gap | |
NO117498B (en) | ||
EP1327294B1 (en) | Electric motor with acoustic insulation | |
FR2491267A1 (en) | Small sync. motor mfg. method - using steel cylindrical casing pressed round stator and steel end plates pressed into cylindrical casing for quick assembly | |
JPH027849A (en) | Motor | |
JPH0822925A (en) | Leading out structure of transformer | |
FR2918209A1 (en) | ELECTRICAL CUTTING APPARATUS COMPRISING AN ADDITIONAL ELECTRICAL FUNCTION | |
FR2522207A1 (en) | HIGH VOLTAGE SHIELDED SUBDIVIDED INSTALLATION IN SEALED COMPARTMENTS | |
JPH0314907Y2 (en) | ||
SU1636912A1 (en) | Three-phase single-circuit overhead transmission line | |
FR2719423A1 (en) | Synchronous electric machine with smooth poles and constant air gap. | |
JPH07298465A (en) | Method for securing electric wire | |
WO2012130687A1 (en) | Current transformer for three-phase equipment | |
Lemaître | Un spectrographe à réseau asphérique pour télescope f/4 | |
WO2020245122A1 (en) | Rotating electric machine provided with a cooling chamber |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |