Toyota Jidosha Kabushiki Kaisha

Masahiro Kino

Masashige Tanaka

Hiroaki Urano

Yukihisa Yamamoto

Kenta Chimata

A rotor manufacturing apparatusis provided, the rotor manufacturing apparatusincluding: a first moldand a second moldrespectively arranged on one end surface and another end surface in the axial direction of a cylindrical rotor corein order to seal the magnet insertion holein the process of filling the gap between a permanent magnetand a magnet insertion holewith the resin materialand solidifying a resin material, in which each of the first moldand the second moldis provided with positioning protrusion parts, andthat are protruded in the axial direction and are intended to position the permanent magnetin a predetermined position with respect to the magnet insertion hole

Rotor manufacturing apparatus

A manufacturing method for manufacturing a rotor such that a permanent magnet is inserted into a slot hole of a rotor core with a spacer includes: a step of placing, on the rotor core, a guide whose upper end has a curved guide surface such that the guide space continues with the slot hole in the up-down direction; a step of placing the spacer on the guide so that the spacer lies across the guide space; a step of inserting the permanent magnet into the guide space with the spacer being wound around the permanent magnet; and a step of inserting, into the slot hole, the permanent magnet around which the spacer is wound.

Manufacturing method of rotor

A method that can produce a high-performance stator by providing only an upper or lower fixed piece for latching a coil on an insulator and thus effectively suppressing loosening of the coil winding wire when resin is injected while improving the production efficiency of the insulator. The method includes producing an intermediate by disposing a coil around an insulator, which includes a tubular portion, a flange at one end thereof, and a fixed piece that, when the insulator is loosely fit around the tooth, extends in the radial direction of the tooth from an end side of the flange corresponding to an upper or lower end face of the tooth, and has a coil latching claw, and loosely fitting the insulator with the coil around the tooth; and placing the intermediate in a die and injecting resin from around a region where the coil is latched by the fixed piece.

Method for producing stator

A manufacturing method of a stator is a method for manufacturing the stator using molds. The stator is constructed so that a stator main body and resin molded portion are integrated. The stator main body includes a terminal portion and a core. The manufacturing method includes: arranging the stator main body such that the terminal portion is located on a top portion of the molds; and filling a cavity with resin. The terminal portion has a gas discharging port configured to discharge gas out of the cavity from inside the cavity in the molds.

Growing community of inventors

Ichinomiya, Japan

Masahiro Kino