| 摘要 |
PROBLEM TO BE SOLVED: To provide an electrically-driven oil pump device which prevents temperature rising caused by heating of a controller disposed within a motor housing and is capable of preventing noise generated in the controller from being propagated.SOLUTION: A metal case 33 is fixed on an inner peripheral surface of a stator 5 while covering a rotor 6 and a front end portion that protrudes in a radial outer circumference is fixed on an inner peripheral surface of a motor housing 17. The front end portion is fastened and fixed to a pump plate 14 while holding a pump housing 15 with a bolt 31. Within the metal case 33, an oil 36 that is an insulative liquid is encapsulated and the rotor 6 immersed in the oil is rotated and driven. On a front face of a control board 26, a heat dissipation sheet 34 of a heat conductive member is adhered and disposed in an axial direction between the control board and the metal case 33, and heat generated by an electronic circuit component 22 is transmitted to the metal case 33. A leaf spring type contact 35 is fixed to a ground line 37 on the front face of the control board 26 and electrically connected in press-contact with a rear face of the metal case 33.SELECTED DRAWING: Figure 1 |
