Honda Motor Co., Ltd.

Norihiko Hikima

Yasuto Ohashi

Shoma Okubo

Takumi Miyamoto

The coil mounting apparatus includes a stator core fixing jig, a coil winding jig that is arranged inside the stator core and has thereon an annularly wound belt-shaped coil, and a cuff guide that is provided on the stator core fixing jig and has a guide groove for supporting the cuff portion. The guide groove includes a cuff portion-supporting sub-groove that supports the cuff portion from both sides in a circumferential direction of the stator core, and a coil-guiding sub-groove that is located further away from the axial end face of the stator core than the cuff portion-supporting sub-groove and that has a groove width smaller than that of the cuff portion-supporting sub-groove.

Coil mounting apparatus

Provided is a stator assembly apparatus configured to assemble a stator, the apparatus including: a plurality of guide members that are provided in a manner enabling insertion into and withdrawal from inside the electrically-insulating members in a central axial direction of the stator core, and are arranged in a radial direction of the slots in a state of having been inserted inside the electrically-insulating members; a presser configured to press the coil radially outward with respect to the stator core; and a controller configured to control movement of the plurality of guide members. Each time the coil moved by the presser come into contact with or approaches the guide member positioned most radially inside from among the plurality of guide members inside the electrically-insulating members, the controller causes the guide member positioned most radially inside to move so as to sequentially withdraw from within the electrically-insulating members.

Stator assembly apparatus and stator assembly method

A coil mounting device includes a stator coil, a coil winding jig that has an outer diameter smaller than an inner diameter of the stator core and winds therearound a belt-shaped coil in an annular shape, a stator core fixing jig that fixes the stator core at a predetermined position and in a predetermined posture, and a coil expansion mechanism that expands the belt-shaped coil. The coil expansion mechanism includes a holder that holds the coil winding jig inside the stator core in a state where the inter-comb-teeth grooves are matched in phase with the slots, and a coil expander that expands the belt-shaped coil by pressing a portion nearer to a side end than the straight portions of the belt-shaped coil wound around the coil winding jig held by the holder so as to expand the portion, thereby inserting the straight portions into the slots.

Coil mounting device and coil mounting method

Provided is a coil insertion device for inserting a wound coil into slots formed in a stator core and opening to a through-hole of the stator core, by placing the coil in the through-hole, and by expanding the coil to move the coil from inside toward outside with respect to the stator core. The coil insertion device includes a coil expander having a plurality of piece members arranged in an annular shape. The plurality of piece members are movable between a first position where the plurality of piece members are reduced in diameter so as to be insertable inside the wound coil, and a second position where the plurality of piece members are expanded in diameter from the first position to press the wound coil from inside toward outside, thereby inserting the wound coil into the slots at once.

Coil insertion device and coil insertion method

A coil insertion guide device includes a positioning jig that positions a stator core; and a guide member that is provided in the positioning jig so as to be able to contact an end face of the stator core in an axial direction. A coil inserted into the slots along the radial direction of the stator core is guided by the guide members. The guide member includes a guide groove. The guide groove includes, on a side close to the end face of the stator core, a cuff support groove that houses and supports a cuff of one of the insulating members that protrudes from the end face of the stator core, and on a side far from the end face, a coil guide groove that protrudes toward an inside of the slot more than the cuff support groove and contacts the coil to guide movement of the coil.

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Tokyo, Japan

Norihiko Hikima