A coil of a stator winding of an electric machine is formed of a number of windings, which are wound together with a number of layers of a mica tape, on which a number of layers of a cover tape are in turn wound. The coil is a three-dimensional form-wound coil. The mica tape has a bending stiffness of less than 50 N/m according to specification IEC 60371-2:2004 and a static friction coefficient between the top side and the bottom side thereof of less than 0.7 according to specification ISO 8295:1995.

A coil of a stator winding of an electric machine is formed of a number of windings, which are wound together with a number of layers of a mica tape, on which a number of layers of a cover tape are in turn wound. The coil is a three-dimensional form-wound coil. The mica tape has a bending stiffness of less than 50 N/m according to specification IEC 60371-2:2004 and a static friction coefficient between the top side and the bottom side thereof of less than 0.7 according to specification ISO 8295:1995.

A laminated core manufacturing method according to the present invention is a manufacturing method for a laminated core including: a laminated body that is configured by laminating core strips that are made of a magnetic material, the laminated body including: a core back portion; and a tooth portion; and electrically insulating members that are disposed on two side portions of the tooth portion, wherein the laminated core manufacturing method includes a bonding step in which the insulating members are pressed onto each of the side surfaces of the tooth portion of the laminated body so as to integrate the laminated body and also so as to fix the insulating members to the laminated body, by means of at least one of an adhesive and a pressure-sensitive adhesive that is disposed between each of the side surfaces of the tooth portion and the insulating members.

A slot includes a coil housing portion having first and second side portions and a bottom portion. A first straight line connects first and second points which are boundaries between the bottom portion and the side portions. A slot opening has third and fourth points closest to the first and second side portions. A second straight line connects the first and third points. A third straight line connects the second and fourth points. A first region is surrounded by the first straight line and the bottom portion. A second region is surrounded by the second straight line and the first side portion, and is surrounded by the third straight line and the second side portion. A third region is surrounded by the three straight lines. Areas A1, A2 and A3 of the three regions and total cross-sectional areas S1, S2, S3 of coils therein satisfy (S1/A1)>(S2/A2)>(S3/A3).

An embodiment relates to a stator and a motor including the stator, the stator comprising: a stator core; a coil wound around the stator core; and an insulator disposed between the stator core and the coil, wherein the insulator includes: a body around which the coil is wound; a first guide protruding from the inside of the body; a second guide protruding on the outside of the body a first protrusion protruding outward from the lateral surface of the first guide; and a second protrusion protruding inward from the inner surface of the second guide, and an insulating member radially disposed between the first guide and the second guide is bent in a circumferential direction by means of the first protrusion and the second protrusion. Therefore, the motor can inhibit the movement and separation of insulating paper.

An embodiment relates to a stator and a motor including the stator, the stator comprising: a stator core; a coil wound around the stator core; and an insulator disposed between the stator core and the coil, wherein the insulator includes: a body around which the coil is wound; a first guide protruding from the inside of the body; a second guide protruding on the outside of the body a first protrusion protruding outward from the lateral surface of the first guide; and a second protrusion protruding inward from the inner surface of the second guide, and an insulating member radially disposed between the first guide and the second guide is bent in a circumferential direction by means of the first protrusion and the second protrusion. Therefore, the motor can inhibit the movement and separation of insulating paper.

A rotating electrical machine stator and a method for manufacturing a rotating electrical machine stator with high productivity. A rotating electrical machine stator includes a stator core having a slot; and a coil having a leg part including a held-in-slot part held in the slot and a portion extending from the held-in-slot part, and a resin foam is provided between an inner surface of the slot and an outer surface of the held-in-slot part facing the inner surface of the slot. The coil is formed by joining together a plurality of segment conductors each having a joint part, and a conductive joint material is disposed between a pair of joint parts facing each other in the slot.

An inter-phase insulating paper is inserted, using a guide jig, into slots formed in the inner circumferential surface of a stator core. The guide jig is disposed at a predetermined position on one end surface side of the stator core. The inter-phase insulating paper is inserted into the guide jig along the stator core central axis line. The guide jig deforms the inter-phase insulating paper to a predetermined shape when the inter-phase insulating paper passes through the inside of the guide jig. The guide jig inserts both side portions of the inter-phase insulating paper simultaneously into different two slots of the stator core along the stator core central axis line.

The present invention may provide a motor including a stator core, an insulator coupled to the stator core, and a first terminal and a second terminal which are coupled to the insulator, wherein the stator core includes a yoke and a tooth protruding from the yoke, the insulator includes a body on which the tooth is disposed and a seating part extending from the body and disposed on the yoke, the seating part include a base and first to third partition walls extending from the base, the first terminal is disposed between the first partition wall and the second partition wall, and the second terminal is disposed between the second partition wall and the third partition wall.

A routing structure of a conductive wire includes: a body portion; a guide portion fixed to the body portion and including a protruding portion protruding to an outside of the body portion; a conductive wire hooked on the protruding portion of the guide portion; and a first insulating portion disposed between the body portion and the guide portion and insulating the body portion and the guide portion.