Hermetic motors with windings coupled to on-winding motor protectors via welded terminals
AssigneeEmerson Electric Co.
InventorsJohn H. Hussey, Vincent P. Fargo, William L. Riggs
Life of this patent
Estimating the term…
Abstract
A hermetic motor includes a stator having at least one winding formed by a winding wire, and an on-winding motor protector having at least one contact. To improve the reliability and reduce the cost of the hermetic motor, the winding wire is directly coupled (without a lead wire) to the motor protector contact. Additionally, a common wire extending from the motor protector to a cluster block (if applicable) can be the same type of wire as the winding wire.
Claims17
A hermetic motor comprising a stator having at least one winding formed by a winding wire, and an on-winding motor protector having a housing and at least one contact extending from an external side of the motor protector housing, wherein the winding wire is coupled to the motor protector by a terminal that is directly coupled to the winding wire without lead wire, and wherein said terminal is welded to the at least one contact on the external side of the motor protector housing.
A method of assembling a hermetic motor, the hermetic motor including a stator having at least one winding formed by a substantially solid winding wire and an on-winding motor protector having a housing and at least one contact extending from an external side of the housing, the method comprising coupling the substantially solid winding wire to the motor protector by coupling the substantially solid winding wire directly to a terminal without lead wire, and welding said terminal to the at least one contact on the external side of the motor protector housing.
A hermetic motor comprising a stator having a plurality of windings formed by at least a first substantially solid winding wire and a second substantially solid winding wire, and an on-winding motor protector having a housing and at least a first contact and a second contact extending from an external side of the housing, the first winding wire and the second winding wire directly coupled to a first terminal and a second terminal, respectively, without lead wire, and wherein said first terminal and said second terminal are welded to the first contact and the second contact, respectively, on the external side of the motor protector housing.
Dependencies are inferred from the claim text.