In a multiphase armature winding provided in an armature that constitutes a rotating electric machine and that is configured by conductive wire material, the conductive wire material for each phase includes an assembly of strands having a conductor and an inner insulating layer of insulating material surrounding the conductor, and an outer insulating layer of insulating material surrounding the assembly of strands. The outer insulating layer is peeled off at an end of the conductive wire material. A tip of the conductive wire material at the peeled portion of the outer insulating layer is joined by welding or crimping to form a joint portion. At least a portion other than the joint portion, in the conductive wire material at the peeled portion of the outer insulating layer, is varnished.

A fixture for holding a stator including a stator core having a plurality of stator windings during assembly. The fixture includes a first fixture portion including a base defining a first stator receiving portion that is receptive of a first end of the stator, a second fixture portion including second stator receiving portion that is receptive of a second end of the stator, and at least one alignment feature provided on one of the first fixture portion and the second fixture portion. The at least one alignment feature is configurated to establish a selected alignment between a terminal end of each of the plurality of stator windings and busbar.

Connection unit for a stator with a stator winding having a number N of phases, having first to Nth contact portions, which are each designed for electrically conductively contacting one of N connection portions of the stator, form a receiving chamber for receiving one of the connection portions and have a guide. A respective contact portion has a wall, which limits the receiving chamber on one side, and the guide of the contact portion has a wall, which adjoins the wall of the contact portion and is bevelled with respect to the wall of the contact portion in a manner facing away from the receiving chamber. A conductor arrangement, which either electrically conductively connects the first to Nth contact portions or comprises N conductor portions, which are electrically isolated from one another and are each electrically conductively connected to one of the contact portions.

Connection device for a stator having a stator winding, including N phases, first and second connection units which each comprise N contact portions and a conductor arrangement. The contact portions of the first connection unit are each designed for electrically conductive contacting of one of N connection portions of the stator winding, and the conductor arrangement of the first connection unit electrically conductively connects the contact portions of the first connection unit. The contact portions of the second connection unit are each designed for electrically conductive contacting of one of N further connection portions of the stator winding and the conductor arrangement of the second connection unit comprises N conductor portions, which are electrically insulated from each other and are each electrically conductively connected to one of the N contact portions of the second connection unit. A fastening mechanism permits the connection units to be detached and fastened.

A stator winding of a sheet-metal stator for an electric motor. A stator lamination stack of the stator is equipped with an insulating end plate. Stator teeth protruding in the radial direction are wound with a winding wire. After a specified number of stator teeth, the winding wire is guided away from the stator lamination stack and then back to the stator lamination stack, thereby forming an at least U-shaped loop. The loop is then used to contact a motor electronics unit of the electric motor.

A stator winding of an annular laminated core for an electric motor. A stator lamination of the annular laminated core is equipped with an insulating end disc, on which a plurality of terminating domes are formed protruding in the axial direction. Stator teeth that project in the radial direction are wound with a winding wire, forming a coil in each case. The winding wire between two coils assigned to the same phase and/or for contacting the or each correspondingly assigned coil with motor electronics is laid on the insulating end disc. In addition to a number of fixing loops each laid around a terminating dome for fixing the winding wire, the winding wire is laid radially outside and also radially inside the terminating domes.

Magnetic-pole pieces each equipped with a pair of insulators made of resin are provided with a conductive wire wound continuously via a jumper wire making connection between the magnetic-pole pieces, and are arranged in an annular shape. Each insulator has, at one end in a circumferential direction of an axial-direction end, a snap-fit female portion having an opened-ring portion having an opening, and has, at another end, a snap-fit male portion having a pillar portion extending in the axial direction from a base portion. The adjacent magnetic-pole pieces are connected swingably relative to each other via snap-fit connection by fitting of the pillar portion to the opened-ring portion. A jumper-wire-caught portion at which a jumper wire is caught is provided at least in one location of the connection part where mutual connection is made.

The present invention may provide a motor including a shaft, a rotor coupled to the shaft, a stator disposed to correspond to the rotor, and a busbar disposed above the stator, wherein the stator includes a stator core and coils, the busbar includes a terminal connected to the coils, the terminal includes bodies and a plurality of connection ends which extend from the bodies and are in contact with end portions of the coils, a plurality of extension parts extending from the plurality of bodies are combined to constitute any one of the plurality of connection ends, and the plurality of extension parts are in contact with the same end portion of the coil.

A manufacturing method of fan stator structure includes the steps of providing a fan stator; providing a plurality of coil lead wire holders at an end of the fan stator; and winding lead wires on the fan stator to form coils, and setting and connecting a front end and a back end of each of the lead wires to the coil lead wire holders. The above method eliminates the drawbacks of the conventional fan stator coil winding operation, such as requiring manual twisting and trimming of the lead wire front ends and back ends and leaking of tin solder occurred during welding of the lead wires to a circuit board.

An aim of a coil segment having an approximate U shape is placed in a slot of a stator core, and a portion protruding from the slot is bent in a circumferential direction. An arm is bent in a direction of an arrow A, and another arm positioned at an inner side in the radial direction in relation to this arm is bent in a direction of an arrow B. The arm positioned at the outer side has at least a part of a bending inner side surface of a bent portion hardened by pressurization.