A coil insertion device includes: a pair of delivery jigs respectively formed with slits into which a pair of side portions of a coil that are parallel with each other can be inserted; and a side portion inserting mechanism configured to push out the side portions inserted into the slits from the slits to insert the side portions into slots of a stator core, the slots facing the slits, the side portion inserting mechanism has: pushing blocks inserted into the slits; and a pushing block moving mechanism configured to move the pushing blocks in a depth direction of the slits.

A micro fan is provided. The micro fan includes a rotor and a stator. The stator includes a plurality of axial induced coil units and a circuit board. The axial induced coil units are respectively preformed as a plurality of stator magnetic pole units, and are coupled to the circuit board. At least one of the coil units includes a coil and insulation material. The insulation material is block-shaped and covers at least a portion of the coil, and the central axis of the coil is parallel to the shaft of the rotor.

The coil winding apparatus is for manufacturing a coil by winding a wire rod around a winding core rotated by a rotating mechanism, wherein the winding core has a base plate and a plurality of winding pins erected on the base plate, and a circumferential groove into which a wire rod are put is formed on the periphery of the plurality of winding pins. The rotation mechanism is provided with a rotatable rotating plate, a drive mechanism for rotating the rotating plate, and a pair of columnar members erected on the rotating plate so as to put a rotation center with between a pair of the columnar members. An inner base plate is mounted to a tip of the pair of columnar members, and the coil winding apparatus is provided with an outer winding core moving mechanism.

A method used for producing rotors and stators of electric motors, including the production of connection wires, and comprises the following steps: Winding the coil windings (12), which comprise a plurality of individual wires (14), on a wire winder (28) to which the individual wires (14) are fed from a wire supply unit (16) via a wire guide 18, 20, 22), Depositing the coil windings (12) in a draw-in tool (36), Drawing the coil windings (12) into grooves of a stator (84) or rotor body, Combining the individual wires (14) in phases by means of slide-on tubes (52) to produce the connection wires of the stator or rotor in question. In order to be able to automate the production of the connection ends, which was previously carried out manually, it is proposed that the individual wires (14) of each coil winding (12) are fastened to each other in the region of the wire guide (18, 20, 22) in order to form winding ends (46) and winding beginnings (32), after the winding and before or during the depositing, the winding ends (46) and winding beginnings (32) of each coil winding (12) are fastened in first position holders (42, 44) arranged in certain positions with respect to the draw-in tool, and during the drawing of the coil windings (12) into the stator or rotor, the winding ends (46) and winding beginnings (32) are transferred from the first position holders (42, 44) into second position holders (90, 92) arranged in certain positions with respect to the stator body (84) or rotor body. The present invention also relates to a device for carrying out the aforesaid method.

Provided is a device for manufacturing a stator, the device including a winding jig configured to wind a coil and to manufacture a winding coil, and an insertion jig configured to receive the winding coil from the winding jig and to insert the winding coil into a stator core, wherein the winding jig comprises a body extending along a longitudinal direction (L1), a power supply unit configured to make the body revolve around a central shaft of the body, and a protrusion formed on a surface of the body.

An arrangement for mounting a coil winding on a stator tooth, the arrangement comprising a mounting element having a first mounting arm for receiving a first stator tooth and a second mounting arm for receiving a second stator tooth, wherein the first mounting arm is movable relative to the second mounting arm between a first position and a second position; means for mounting an electrical conductor on the first stator tooth and the second stator tooth when the first mounting arm is in the first position relative to the second mounting arm to form a coil winding on the first stator tooth and the second stator tooth; and means for placing the first mounting arm in the second position relative to the second mounting arm when the conductor has been mounted on the first stator tooth and the second stator tooth to allow the first stator tooth and the second stator tooth to be removed from the first mounting arm and the second mounting arm respectively.

Stator, motor and method of forming a stator are provided. The stator includes a stator core, a winding wound around the stator core, a connecting member, first and second connecting terminals for supplying power to the winding from an external power source, and an electronic circuit. The connecting member and the first connecting terminal are respectively electrically connected with the electronic circuit. The connecting member and the second connecting terminal are respectively electrically connected with both ends of the winding respectively.

In a rotating electric machine that includes an armature with an armature coil, the armature coil is formed by winding an electrical conductor wire. The electrical conductor wire includes a plurality of element wires in a bundled state and an insulating coat covering the bundled element wires. Each of the element wires includes an electrical conductor through which electric current flows, and a fusing layer that covers a surface of the electrical conductor. In the bundled state of the element wires, the fusing layers of the element wires are in contact with and fused to one another. Between adjacent parts of the electrical conductor wire wound to form the armature coil, there are formed gaps due to differences in straightness between different parts of the electrical conductor wire. The gaps are filled with a filler.

Disclosed Is a method for pulling a stator winding system of an electric machine into a stator lamination stack of the electric machine and to a winding tool, with the stator lamination stack having stator grooves which run parallel to a rotation axis of the electric machine and are distributed in a circle around the rotation axis and open thereto and which have on an end facing the rotation axis a gap region which is narrowed relative to the rest of the stator groove. Windings are arranged in the stator grooves, and winding overhangs, as seen in the direction of the rotation axis, protrude from the stator lamination stack at the two axial ends thereof, with the windings formed in the stator grooves as laid windings. The stator lamination stack has no guide structures on the two axial ends for guiding the individual turns of the windings.

A coil insertion device includes: a pair of delivery jigs respectively formed with slits into which a pair of side portions of a coil that are parallel with each other can be inserted; and a side portion inserting mechanism configured to push out the side portions inserted into the slits from the slits to insert the side portions into slots of a stator core, the slots facing the slits, the side portion inserting mechanism has: pushing blocks inserted into the slits; and a pushing block moving mechanism configured to move the pushing blocks in a depth direction of the slits.