High voltage generator stator with radially inserted cable windings and assembly method
First Claim
1. A method of forming a stator in a dynamo electrical machine comprising the steps of:
- a. arranging a cylindrical jig that has an outside diameter corresponding to an inside diameter of a rotor opening of the stator;
b. mounting inner edges of stator teeth on the jig to form a circular array of teeth, where the teeth extend radially out from the jig;
c. sliding a first separator bar into an axial end of a stator slot defined between adjacent stator teeth, where the separator bar has a lower surface adjacent the jig and an upper surface;
d. seating a cable winding on the upper surface of the first separator bar by inserting the cable winding radially into the stator slot;
e. sliding a second separator bar axially into the stator slot and over the seated cable winding, where the second separator bar has a lower surface seating on the already seated cable winding, and has an upper surface to seat another cable winding;
f. repeating steps (d) and (e) until a sequence of separator bars and cable windings are stacked in the stator slot.
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Accused Products
Abstract
A stator for a high voltage generator has cable windings that are radially inserted into the stator slots. The stator is assembled as the cable windings are laid into the stator slots. The stator slots are left wide open to allow the cable windings and separator bars to be inserted in the slot as the stator is assembled. The open slots have sidewalls that are defined by stator teeth, which extend radially out from a rotor jig in the stator. As each coil section is laid in a slot, a separator bar is inserted over the coil so that another coil section can be laid into the stator. The coils are stacked in a slot and sandwiched between separator bars also in the slot. The separator bar is keyed to the sidewalls of the teeth to provide structural support for the cable windings.
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Citations
12 Claims
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1. A method of forming a stator in a dynamo electrical machine comprising the steps of:
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a. arranging a cylindrical jig that has an outside diameter corresponding to an inside diameter of a rotor opening of the stator;
b. mounting inner edges of stator teeth on the jig to form a circular array of teeth, where the teeth extend radially out from the jig;
c. sliding a first separator bar into an axial end of a stator slot defined between adjacent stator teeth, where the separator bar has a lower surface adjacent the jig and an upper surface;
d. seating a cable winding on the upper surface of the first separator bar by inserting the cable winding radially into the stator slot;
e. sliding a second separator bar axially into the stator slot and over the seated cable winding, where the second separator bar has a lower surface seating on the already seated cable winding, and has an upper surface to seat another cable winding;
f. repeating steps (d) and (e) until a sequence of separator bars and cable windings are stacked in the stator slot. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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Specification