Method for manufacturing a rotary electric machine
AssigneeHonda Motor Co., Ltd.
InventorsKenji Masai, Satoru Uchiumi, Takashi Yoshida, Keitaro Momosaki
Life of this patent
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Abstract
A manufacturing method for a rotary electric machine is equipped with an insertion roller having an outer circumferential surface configured to contact a coil lead line in such a manner that the coil lead line is inserted into accommodating grooves of an insulator, a roller support section that rotatably supports the insertion roller, and a bending unit that performs a bending process to bend the coil lead line by coming into contact with the coil lead line so as to form a terminal part.
Claims5
A manufacturing method for a rotary electric machine that is operably associated with a machining device, wherein the rotary electric machine comprises a stator including a stator core formed by arranging in an annular shape a plurality of divided cores each having a coil surrounding a portion of a divided iron core through an insulator;
- wherein the stator includes:
- a crossover line which is formed by routing a coil lead line that is led out from the coil within accommodating grooves that are formed with respect to the insulator along a circumferential direction of the stator core;
- and
- a terminal part disposed on an end of the crossover line,
- the manufacturing method comprising steps of:
- forming the crossover line, by bringing an outer circumferential surface of an insertion roller of the machining device, which is rotatably supported by a roller support section, into contact with respect to the coil lead line while moving the insertion roller relatively to the divided cores along a circumferential direction of the stator core, and thereby inserting the coil lead line into the accommodating grooves;
- and
- after the forming of the crossover line, forming the terminal part by bringing a curved surface of a bending unit of the machining device into contact with respect to the coil lead line and thereby bending the coil lead line, wherein the curved surface has a curvature greater than a curvature of a curved surface of the insertion roller.
A manufacturing method for a rotary electric machine that is operably associated with a machining device, wherein the rotary electric machine comprises a stator including a stator core formed by arranging in an annular shape a plurality of divided cores each having a coil surrounding a portion of a divided iron core through an insulator;
- wherein the stator includes:
- a crossover line which is formed by routing a coil lead line that is led out from the coil within accommodating grooves that are formed with respect to the insulator along a circumferential direction of the stator core;
- and
- a terminal part disposed on an end of the crossover line,
- the manufacturing method comprising steps of:
- forming the crossover line, by bringing an outer circumferential surface of an insertion roller of the machining device, which is rotatably supported by a roller support section, into contact with respect to the coil lead line while moving the insertion roller relatively to the divided cores along a circumferential direction of the stator core, and thereby inserting the coil lead line into the accommodating grooves;
- and
- after the forming of the crossover line, forming the terminal part by bringing a bending unit of the machining device into contact with respect to the coil lead line and thereby bending the coil lead line, wherein:
- the accommodating grooves open in a radially outward direction of the stator core;
- and
- a guide member supporting the coil lead line at substantially a same position as the insertion roller in an axial direction of the stator core is arranged in proximity to the insertion roller in a direction in which the coil lead line is routed by the insertion roller,
- the guide member includes a pair of restriction walls that separate from each other and face one another mutually along the axial direction of the stator core;
- in the forming of the crossover line, the coil lead line is inserted into a gap formed between the pair of restriction walls, and the bending unit that is disposed in the gap is retracted;
- and
- in the forming of the terminal part, the bending unit is advanced with respect to a portion of the coil lead line that is positioned in the gap.
Dependencies are inferred from the claim text.