Electric oil pump device

Abstract

A filter module includes an attachment attached to an attachment catch. The attachment of the filter module on the attachment catch of the electric oil pump main body to the attachment catch is fixed in a posture where an outlet port of the filter module is caused to communicate with the suction port of the electric oil pump main body.

What is claimed is: 
     
         1 . An electric oil pump device, comprising:
 an electric oil pump main body including a pump, a motor that drives the pump, a suction port that suctions oil, and an ejection port that ejects the oil;   a filter module that includes an inlet port that receives the oil, an outlet port that discharges the oil passing through the inlet port, and an attachment that is attached to the electric oil pump main body;   an attachment catch, which is provided on the electric oil pump main body, to which the attachment of the filter module is attached; and   a fastener that secures, to the attachment catch, the attachment of the filter module placed on the attachment catch of the electric oil pump main body in a posture in which the outlet port is caused to communicate with the suction port of the electric oil pump main body.   
     
     
         2 . The electric oil pump device according to  claim 1 , wherein
 the filter module includes a filter that filters the oil and an accommodation case that accommodates the filter; and   the inlet port, the outlet port, and the attachment are provided on the accommodation case.   
     
     
         3 . The electric oil pump device according to  claim 2 , wherein
 the suction port is directed in a direction around a central axial line of a motor shaft of the motor;   the attachment includes a first attachment surface that is attached to a side of the pump and a second attachment surface that is attached to a side of the motor; and   the filter module is secured to the electric oil pump main body such that the filter module opposes both the pump and the motor in an axial direction.   
     
     
         4 . The electric oil pump device according to  claim 3 , wherein
 the suction port is closer to the motor than the ejection port in the axial direction; and   the suction port and the ejection port are aligned along an axial line extending in the axial direction.   
     
     
         5 . The electric oil pump device according to  claim 3 , wherein
 an inverter that controls driving of the motor is secured to an end surface of the motor on a side opposite to a side of the pump in the axial direction;   a posture of the inverter secured to the end surface is a posture in which a longitudinal direction of the inverter follows the radial direction and an end portion of the inverter in the longitudinal direction projects beyond an end of the electric oil pump main body in a direction along the longitudinal direction of the inverter secured to the pump; and   the filter module is in a region between the end of the electric oil pump main body and an end of the end portion of the inverter in the longitudinal direction.   
     
     
         6 . The electric oil pump device according to  claim 4 , wherein
 an inverter that controls driving of the motor is secured to an end surface of the motor on a side opposite to a side of the pump in the axial direction;   a posture of the inverter secured to the end surface is a posture in which a longitudinal direction of the inverter follows the radial direction and an end portion of the inverter in the longitudinal direction projects beyond an end of the electric oil pump main body in a direction along the longitudinal direction of the inverter secured to the pump; and   the filter module is in a region between the end of the electric oil pump main body and an end of the end portion of the inverter in the longitudinal direction.