Abstract: Exemplary embodiments are disclosed that include multi-voltage contactors, controls, and related methods.

Abstract: According to various aspects, exemplary embodiments are provided of closures including adjustment tools for adjustment mechanisms. In an exemplary embodiment, a closure for an adjustment mechanism includes a cap. The cap includes an adjustment tool configured to engage the adjustment mechanism for changing a position of the adjustment mechanism. In another example embodiment, a method of making a closure for an adjustment mechanism generally includes providing a cap with an adjustment tool. In another example embodiment, there is a method of adjusting an adjustment mechanism using a closure for the adjustment mechanism. In this example, the method generally includes removing the closure from the adjustment mechanism, changing a position of the adjustment mechanism using the adjustment tool of the closure, and re-installing the closure about the adjustment mechanism.

Abstract: A stator for a polyphase dynamoelectric machine includes a stator core and windings positioned about the stator core. The windings include at least a first phase winding and a second phase winding. The first phase winding is formed of at least one electrical conductor material that is not present in the second phase winding.

Abstract: A three-phase, multi-speed electric induction motor assembly is configured to include a controller to change motor speeds. The motor assembly includes a stator core assembly, a pair of main winding coil groups corresponding with each phase, and a pair of selectable extra winding coil groups corresponding with each phase. During the lower-speed operation, the controller connects a first set of three leads to a power source such that only the main coil groups are energized. During the higher-speed operation, the controller connects a second set of three leads to the power source such that both the main coil groups and the selectable extra coil groups are energized.

Abstract: A motor includes a stator core and windings extending through the stator core. The windings include end turns extending from the stator core that form a coil. A protector is electrically connected to the windings and is positioned adjacent the coil. A bracket is sized and shaped to receive the protector, and includes a spacer in contact with the protector and with the coil. The protector is spaced from the coil by the spacer to reduce heat transfer from the windings to the protector.

Abstract: A stator for a polyphase dynamoelectric machine includes a stator core and windings positioned about the stator core. The windings include at least a first phase winding and a second phase winding. The first phase winding is formed of at least one electrical conductor material that is not present in the second phase winding.

Abstract: A stator comprises a core, a plurality of wire coils, an end turn phase insulator, and at least one lead wire. The wire coils are wound through the slots of the stator and form end turns as they wind from slot to slot. The end turn phase insulator comprises an end turn separating portion and a lead wire restraining tab. The end turn separating portion is sandwiched radially between an inner end turn and an outer end turn. The lead wire restraining tab extends from the end turn separating portion and is partially wrapped over the outer end turn in a manner sandwiching the lead wire between the lead wire restraining tab and the outer end turn. This prevents the lead wire from migrating into the core of the stator.

Abstract: A three-phase, multi-speed electric induction motor assembly is configured to include a controller to change motor speeds. The motor assembly includes a stator core assembly, a pair of main winding coil groups corresponding with each phase, and a pair of selectable extra winding coil groups corresponding with each phase. During the lower-speed operation, the controller connects a first set of three leads to a power source such that only the main coil groups are energized. During the higher-speed operation, the controller connects a second set of three leads to the power source such that both the main coil groups and the selectable extra coil groups are energized.

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.

Abstract: A scroll compressor is more economically constructed and operated. The scroll compressor includes an orbiting scroll member, a non-orbiting scroll member, and a single phase electric motor, the single phase electric motor further includes a rotor, a stator having a plurality of slots, the stator being mounted concentrically with the rotor, an aluminum start winding that is wound within a portion of the slots distal from the rotor, a copper main winding that is wound with a portion of the slots between the aluminum start winding and the rotor, and a drive shaft coupled to the rotor, the drive shaft being configured to couple to the orbiting scroll member of a scroll compressor to cause the orbiting scroll member to orbit the non-orbiting scroll member.

Abstract: A stator comprises a core, a plurality of wire coils, an end turn phase insulator, and at least one lead wire. The wire coils are wound through the slots of the stator and form end turns as they wind from slot to slot. The end turn phase insulator comprises an end turn separating portion and a lead wire restraining tab. The end turn separating portion is sandwiched radially between an inner end turn and an outer end turn. The lead wire restraining tab extends from the end turn separating portion and is partially wrapped over the outer end turn in a manner sandwiching the lead wire between the lead wire restraining tab and the outer end turn. This prevents the lead wire from migrating into the core of the stator.

Abstract: An electric terminal connector block is provided with oblong tool openings that communicate with interior channels of the connector block and with openings in the motor wiring electric terminals positioned in each channel of the connector block. The oblong shapes of the tool openings enable insertion of tool pins through the tool openings and openings of the electric terminals and movement of the tool pins along the lengths of the oblong tool openings whereby the tool pins engage with the electric terminals and move the terminals relative to the connector block to insure that the terminals are locked in place in the connector block. In addition, the tooling used with the connector block is operated according to a method that insures that the terminals of the motor winding are moved to a position relative to the connector block where the terminals are locked in place.

Abstract: A motor includes a stator core and windings extending through the stator core. The windings include end turns extending from the stator core that form a coil. A protector is electrically connected to the windings and is positioned adjacent the coil. A bracket is sized and shaped to receive the protector, and includes a spacer in contact with the protector and with the coil. The protector is spaced from the coil by the spacer to reduce heat transfer from the windings to the protector.

Abstract: An electrical connector includes a terminal attached to a length of wiring that extends from the stator windings of an electrical device, and a tubular insulating sleeve that extends along the length of wiring. The sleeve is secured stationary relative to both the wiring and the terminal by being secured to the stator windings by the same mechanical connection that binds the stator windings.

Abstract: A method for attaching an electric conductor to an electrically conductive terminal. The electric conductor comprises a wire and a cladding surrounding the wire. The wire has an exposed end portion extending from an end of the cladding. The method comprises placing a sleeve over the electric conductor. The sleeve is of an electrically insulative material. The method further includes positioning the exposed end portion of the wire adjacent the terminal, securing the exposed end portion of the wire to a first portion of the terminal in a manner so that the exposed end portion of the wire is mechanically secured to and electrically coupled to the terminal, moving the sleeve along the electric conductor to a position in which a portion of the sleeve is adjacent the terminal, and securing the sleeve to a second portion of the terminal in a manner so that the sleeve is mechanically secured to the terminal.

Abstract: An electric terminal connector block is provided with oblong tool openings that communicate with interior channels of the connector block and with openings in the motor wiring electric terminals positioned in each channel of the connector block. The oblong shapes of the tool openings enable insertion of tool pins through the tool openings and openings of the electric terminals and movement of the tool pins along the lengths of the oblong tool openings whereby the tool pins engage with the electric terminals and move the terminals relative to the connector block to insure that the terminals are locked in place in the connector block. In addition, the tooling used with the connector block is operated according to a method that insures that the terminals of the motor winding are moved to a position relative to the connector block where the terminals are locked in place.

Abstract: An electric terminal connector block is provided with oblong tool openings that communicate with interior channels of the connector block and with openings in the motor wiring electric terminals positioned in each channel of the connector block. The oblong shapes of the tool openings enable insertion of tool pins through the tool openings and openings of the electric terminals and movement of the tool pins along the lengths of the oblong tool openings whereby the tool pins engage with the electric terminals and move the terminals relative to the connector block to insure that the terminals are locked in place in the connector block. In addition, the tooling used with the connector block is operated according to a method that insures that the terminals of the motor winding are moved to a position relative to the connector block where the terminals are locked in place.

Abstract: A method for attaching an electric conductor to an electrically conductive terminal. The electric conductor comprises a wire and a cladding surrounding the wire. The wire has an exposed end portion extending from an end of the cladding. The method comprises placing a sleeve over the electric conductor. The sleeve is of an electrically insulative material. The method further includes positioning the exposed end portion of the wire adjacent the terminal, securing the exposed end portion of the wire to a first portion of the terminal in a manner so that the exposed end portion of the wire is mechanically secured to and electrically coupled to the terminal, moving the sleeve along the electric conductor to a position in which a portion of the sleeve is adjacent the terminal, and securing the sleeve to a second portion of the terminal in a manner so that the sleeve is mechanically secured to the terminal.

Abstract: A protector assembly and method for protecting motor windings from an overload condition. The assembly comprises a thermally responsive protector, a skirt, and a sleeve. The protector comprises a housing, an end cap, at least one terminal, and a thermally responsive member. The end cap covers an open end of the housing. The terminal extends through the end cap. The thermally responsive member is within the housing and adapted to be electrically coupled to the motor winding via the terminal. The protector is adapted to be positioned in heat-transfer relation wit the motor winding in a manner such that the thermally responsive member is responsive to an overload condition of the motor winding. The skirt and sleeve are of dielectric materials. The skirt is positioned on the protector in a manner such that the skirt surrounds the end cap and the terminal. The skirt is between the end cap and the sleeve.

Abstract: A protector assembly and method for protecting motor windings from an overload condition. The assembly comprises a thermally responsive protector, a skirt, and a sleeve. The protector comprises a housing, an end cap, at least one terminal, and a thermally responsive member. The end cap covers an open end of the housing. The terminal extends through the end cap. The thermally responsive member is within the housing and adapted to be electrically coupled to the motor winding via the terminal. The protector is adapted to be positioned in heat-transfer relation wit the motor winding in a manner such that the thermally responsive member is responsive to an overload condition of the motor winding. The skirt and sleeve are of dielectric materials. The skirt is positioned on the protector in a manner such that the skirt surrounds the end cap and the terminal. The skirt is between the end cap and the sleeve.