Disc for electrodynamics motors
AssigneeGerhard Geiger GmbH & Co.
InventorJosef Grudl
Life of this patent
Estimating the term…
Abstract
The invention relates to a disc (10) for the magnetic circuit of an electrodynamic motor with a central opening (12) and segments (14, 16) disposed about said opening (12), said segments having radially aligned legs (18, 20) and if necessary peripherally-extending arms (22, 25), said legs defining winding grooves (30) radially accessible from the exterior with openings (32) formed in the region of the free radial ends of the legs (20). The openings (32) may be closed by bending the legs (18, 20) and/or the arms (22, 24) (FIG. 1 ).
Claims13
A disk for the magnetic circuit of an electrodynamic motor, comprising
- (i) a central opening having a diameter,
- (ii) a plurality of legs extending radially from said central opening and being peripherally spaced from each other,
- (iii) even alternate ones of said legs each formed with outer arms, said arms peripherally extending in opposite directions from each other,
- (iv) odd alternate ones of said legs each having a radially outer free end,
- (v) each of said outer arms having a peripheral free end for forming a slot between the peripheral free end and an adjacent radially outer free end adjacent to alternate ones of said peripheral free ends,
- (vi) a winding groove disposed between each leg, each of said winding grooves being accessible from the outside through said slot, and
- (vii)(a) the radially outer free ends each of said odd alternate legs having groove dividing said free end into two radially outward extending parts for bending each such outward extending part toward an adjacent end of said peripheral free end of an adjacent outer arm for closing the slot, or
- (b) the peripherally free ends of each leg being bendable toward an adjacent radially outer free end for closing the slot.
A process for making a stator packet from a plurality of disks each of which comprises, (i) a central opening having a diameter, (ii) a plurality of legs extending radially from said central opening and being peripherally spaced from each other, (iii) even alternate ones of said legs each formed with outer arms said arms peripherally extending in opposite directions from each other, (iv) odd alternate ones of said legs each having a radially outer free end, (v) each of said outer arms having a peripheral free end for forming a slot between the peripheral free end and an adjacent radially outer free end adjacent to alternate ones of said peripheral free ends, (vi) a winding groove disposed between each leg, each of said winding grooves being accessible from the outside through said slot, and (vii)(a) the radially outer free ends each of said odd alternate legs having a groove dividing said free end into two radially outward extending parts for bending each such outward extending parts for bending each such outward extending part toward an adjacent end of said peripheral free end of an adjacent outer arm for closing the slot, or (b) the peripherally free ends of each leg being bendable toward an adjacent radially outer free end for closing the slot, the process comprising placing a predetermined plurality of disks adjacent to each other to form a stator packet having opposed ends, lining the winding grooves of the assembled disks with an insulating material, winding a wire into said lined grooves, closing the slots of the disks in the stator packet, and optionally applying a hollow cylindrical shaft to the opposed ends of the stator packet.
Dependencies are inferred from the claim text.