Patent ID: 9470219
Filing Date: 2016-10-18
CPC Classification: F01C,F04B,F04C,F04D,H02K

Claim Text:
1. An electric pump, comprising: a pump portion including a pump housing; a motor portion including a motor housing, a rotor formed in a cylinder form sharing an axis with a rotation shaft provided at the pump portion, and a stator formed in an annular form arranged radially outward at an outer periphery of the rotor with a clearance between the stator and the rotor; and a driver portion arranged at a position between the pump portion and the motor portion when viewed in a direction orthogonal to an axial direction of the rotation shaft, the driver portion controlling the motor portion, the driver portion arranged in a state where a portion of the driver portion overlaps with at least a portion of the pump portion or with at least a portion of the motor portion when viewed in the axial direction, the driver portion being other than coaxial with the pump portion and being other than coaxial with the motor portion, wherein the motor housing includes a stator sealing portion and a driver attaching portion, the stator sealing portion is formed integrally with the stator, and the driver attaching portion extends in a radially outward direction of the motor portion from a radially outer portion of the stator sealing portion, the driver portion is contained in a driver containing portion formed by the pump housing and the motor housing, the driver portion includes a circuit board that is fixed to the driver attaching portion of the motor housing, and the driver attaching portion being an upper side portion of the driver containing portion.