Stator and rotating electric machine equipped with this stator

摘要

In a stator and a rotating electric machine equipped with this stator, the insulation properties of a coil are ensured by suppressing lead wire stress generated during a stator assembly process. The stator has a stator core, a coil wound around the stator core, lead wires led out from the coil, and power lines provided between the lead wires and a connection terminal of an external circuit. The lead wires and the power lines are electrically connected with each other through an elastically deformable elastic bus bar. Even if a shift occurs in the relative position between the coil and the connection terminal during the assembly process of the stator, this configuration allows the elastic bus bar to absorb the shift and makes it possible to suppress the stress generated on the lead wires.

主权项

1. A stator comprising:
a stator core; a coil wound around the stator core and having a coil end; a lead line having one end affixed to a side of the coil end and an end segment extending away from the coil; an elastically deformable elastic bus bar connected to the end segment of the lead line and disposed away from the coil in a direction in which the end segment of the lead line extends; and a power line disposed between the elastic bus bar and a connection terminal of an external circuit such that the power line includes another end segment coupled to said elastic bus bar, wherein
the coil is a three-phase AC coil;the lead line, the power line, and the elastic bus bar are provided for each phase;the power line is disposed away from the coil end in the direction in which the lead line extends;the lead line and the power line are electrically connected via the elastic bus bar for each phase;the elastic bus bars of the respective phases are integrated by a module member using an insulating member;the module member is formed by resin molding and is disposed with a space from the stator core; andthe another end segment of the power line extends in a same direction away from the coil as the end segment of the lead line and at a same distance away from the coil as the end segment of the lead line.