Electrical generator or motor structure – Dynamoelectric – Rotary
Patent
1993-01-29
1995-01-17
Stephan, Steven L.
Electrical generator or motor structure
Dynamoelectric
Rotary
310 43, 310 85, H02K 522, H02K 526
Patent
active
053828550
DESCRIPTION:
BRIEF SUMMARY
FIELD OF THE INVENTION
The instant invention relates to a device equipped with an electric drive motor.
BACKGROUND OF THE INVENTION
In a device of known manufacture such as an electric pump, the electric drive motor comprises in general a rotor with permanent magnets supported by the body of the device and, furthermore, a stator comprising a core of U-shaped electric sheets, an electric winding consisting either of one single electric wire coil mounted on the mid-section of the U of this magnetic core or of two wire coils in series mounted on the two branches of the U of this magnetic core and a protection hood. The electric winding is provided with electric connection terminals or pins. In assembling the device the fragile winding of the stator is often protected by a hood, only at the end of the operation.
Upon demand the device is often supplied with electric connection terminals or pins oriented either towards the front or the rear of the device and positioned according to a conventional standard or to some other standard.
To meet customer requirements, the known device is normally manufactured with different configurations of body and protection hood, thereby increasing its cost and necessitating costly storage of these parts.
The instant invention which has as its object to avoid these disadvantages makes it possible to produce a device with an electric drive motor at a reasonable price.
SUMMARY OF THE INVENTION
According to the invention this device is given only one body form and only one form for the protective casing for the electric winding of the drive motor and is thus able to meet different specifications with respect to the orientation of the electric connection terminals towards the front or towards the rear and their positioning according to an established standard or some other standard.
This device is provided with a structure which facilitates the automation or robotization of the assembly and/or of the manufacture of several of these elements.
According to the invention, a device equipped with an electric drive motor and with a body on which a stator of this motor is mounted is characterized in that it comprises a casing which is immovably attached to the stator, constitutes with the stater an integral statoric sub-assembly which is protected against external forces or actions. The casing is provided with two diametrically opposed tracks to mount the integral statoric sub-assembly on the body, one track making it possible to orient the electric connection terminals or pins of a winding of the stator towards the front of the device, and one track making it possible to orient it towards the rear of the device.
BRIEF DESCRIPTION OF THE DRAWINGS
To facilitate the comprehension of the invention, an the invention is described below through drawings in which:
FIG. 1 shows a partial schematic view of a section through a device with an electric drive motor in the form of an electric pump showing a body of the device and an integral statoric sub-assembly of this drive motor having electric connection terminals or pins oriented towards the front of the device;
FIG. 2 shows a partial schematic view of a section through a device equipped with a drive motor in the form of an electric pump showing a device body that is identical to that of FIG. 1 and an integral statoric sub-assembly of the drive motor identical to that of FIG. 1 but having electric connection terminals or pins oriented towards the rear of this device;
FIG. 3 shows a schematic top view of an electric connection terminal or pin of the stator winding;
FIG. 4 shows a partial section along line IV-VI of the electric connection terminal or pin of FIG. 3;
FIG. 5 shows a top view of an electric connection pod of a thermal stator winding protector;
FIG. 6 shows an end view of the electric connection pod of FIG. 5;
FIG. 7 shows a frontal view of a U-shaped stator winding made up of two electric wire coils in series and equipped with electric connection terminals or pins positioned according to an established standard;
FIG. 8 shows a
REFERENCES:
patent: 4866317 (1989-09-01), Katayama
patent: 5073735 (1991-12-01), Takagi
patent: 5134327 (1992-07-01), Sumi et al.
patent: 5164625 (1992-11-01), Hofmann et al.
patent: 5220224 (1993-06-01), Bosman et al.
Haszko D. R.
Societe Electromecanique du Nivernais-Selni
Stephan Steven L.
LandOfFree
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