Patent ID: 8841804
Filing Date: 2014-09-23
Classification: B60L,H02K,Y02T

Abstract:
1. An electric motor comprising: a core unit which includes: a plurality of core assemblies annually fixed to a case, each core assembly wound with a coil; and a first terminal connecting one end portion of each coil with each other; an annular bus ring which is attached to the core unit and holds a plurality of power supply lines, the bus ring including a first surrounding portion which opposes each of the core assemblies and surrounds a second terminal connecting the other end portion of each coil with any one of the power supply lines; a plurality of supporting members which are attached to the core assemblies, respectively, each supporting member including a second surrounding portion which surrounds a corresponding first terminal, wherein each supporting member and a corresponding first surrounding portion form a terminal accommodating portion having a box shape with a bottom; an attachment member which includes at least one of a first holding portion and a second holding portion, wherein the first holding portion is for holding a first sensor for measuring a temperature of an oil stored in the case at a predetermined first position, and the second holding portion is for holding a second sensor for measuring a temperature of the coils at a predetermined second position; wherein the attachment member is fixed to one of the supporting members such that the first or the second sensor is positioned at a corresponding one of the first position and the second position between adjacent terminal accommodating portions; wherein each of the supporting members includes: a mounting portion for holding a corresponding first terminal, and a conductive-wire holding portion for holding a conductive wire of the first or second sensor at a tip end side relative to the mounting portion; and wherein the attachment member includes a first engagement portion which is engaged with a side wall of a corresponding supporting member from an outer side, and is engaged with corresponding mounting portion and conductive-wire holding portion, to hold the attachment member.