A motor stator and a method for forming the motor stator are provided. The method includes the steps of: providing a plurality of plates or metal powder, forming the plate or the metal powder into a plurality of magnetic laminations, wherein each magnetic lamination comprises a yoke portion and a plurality of stator teeth, each of the stator teeth comprises a tooth portion and two pole shoes, and one end of one of the pole shoes extends towards the direction away from the yoke portion to form a bent portion; axially overlapping the plurality of magnetic laminations and fixing the magnetic laminations to form a stator core; winding wires to the stator core; and bending the bent portions towards adjacent stator teeth, to form a smooth transition connection between the bent portions and the pole shoes connected thereto. The method makes the winding convenient and fast.

A motor stator and a method for forming the motor stator are provided. The method includes the steps of: providing a plurality of plates or metal powder, forming the plate or the metal powder into a plurality of magnetic laminations, wherein each magnetic lamination comprises a yoke portion and a plurality of stator teeth, each of the stator teeth comprises a tooth portion and two pole shoes, and one end of one of the pole shoes extends towards the direction away from the yoke portion to form a bent portion; axially overlapping the plurality of magnetic laminations and fixing the magnetic laminations to form a stator core; winding wires to the stator core; and bending the bent portions towards adjacent stator teeth, to form a smooth transition connection between the bent portions and the pole shoes connected thereto. The method makes the winding convenient and fast.

A manufacturing method of a rotary electric machine provided with an armature winding including: a collection process that bundles a plurality of wires each including a conductor through which current flows and a fused layer covering a surface of the conductor, and makes fused layers contact with each other to be fused therebetween; a coating process that covers the plurality of wires bundled by the collection process with a tape-shaped insulation film to form a conductive wire; and a winding process that multiply winds the conductive wire formed by the coating process to form the armature winding.

A manufacturing method of a rotary electric machine provided with an armature winding including: a collection process that bundles a plurality of wires each including a conductor through which current flows and a fused layer covering a surface of the conductor, and makes fused layers contact with each other to be fused therebetween; a coating process that covers the plurality of wires bundled by the collection process with a tape-shaped insulation film to form a conductive wire; and a winding process that multiply winds the conductive wire formed by the coating process to form the armature winding.

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.

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.

A rotary electric machine includes a stator in which a plurality of armatures each have a coil formed by a winding wire wound in plural layers around bobbins mounted to a magnetic pole tooth, which are disposed annularly on an inner circumference of a cylindrical frame. The coil is formed by the winding wire being wound with a constant feed pitch in parallel with slots of the bobbins in plural layers. The winding wire forming a first layer of the coil is shifted by half the feed pitch between a left side and a right side of a center axis of the coil as viewed from a plane perpendicular to a stacking direction of a stacked iron core.

A rotary electric machine includes a stator in which a plurality of armatures each have a coil formed by a winding wire wound in plural layers around bobbins mounted to a magnetic pole tooth, which are disposed annularly on an inner circumference of a cylindrical frame. The coil is formed by the winding wire being wound with a constant feed pitch in parallel with slots of the bobbins in plural layers. The winding wire forming a first layer of the coil is shifted by half the feed pitch between a left side and a right side of a center axis of the coil as viewed from a plane perpendicular to a stacking direction of a stacked iron core.

A wire winding gun head for winding conductive wiring to form electrical coils. The wire winding gun head having a body, a movable element and a needle. The body has a longitudinal axis. The movable element is coupled to the body, and the movable element has a profile therein. The needle is carried by the body, and the needle is extendable/retractable dependent upon the profile and a position of the movable element. The needle is configured to receive wire and to supply the wire out of an end of the needle.

The present invention relates to a stator and a motor equipped with the stator, the stator including an inner core including an inner core body and a plurality of teeth radially formed at a periphery of the inner core body; a coil wound on each tooth; an outer core multiply divided to be coupled between the plurality of teeth; and a press-fitting unit formed at the inner core and the outer core to allow the outer core to be press-fitted between the teeth, whereby it is easy to assemble the stator and to wind the coil, thereby reducing a manufacturing cost and enhancing concentricity level between an external diameter and an inner diameter of a stator core.