| 摘要 |
PROBLEM TO BE SOLVED: To easily fill the area between wiring members with resin when the bus bar of an electric motor is formed by injection molding. SOLUTION: The bus bar 51 attached to the armature of an electric motor includes: four wiring plates 516 disposed perpendicularly to the central axis at intervals in the direction in which the central axis is oriented; and a resin portion 517 formed by injection molding so that it completely wraps the four wiring plates 516. A resin passage hole 519 that is a through hole through which resin passes when the resin portion 517 is molded is formed in the wiring plates 516. When the bus bar 51 is molded, resin is injected into a mold for resin molding with the four wiring boards 516 supported by support pins provided in the mold. Resin moves in the space between the mold and the wiring boards 516 and in the spaces between the adjacent wiring boards 516 through the resin passage hole 519 in each wiring board 516 and from space to space. Therefore, the area between the wiring boards 516 can be easily filled with resin. COPYRIGHT: (C)2006,JPO&NCIPI
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