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US 2016/0079822 A1Published application
Electric fluid pump
AssigneeHitach Automotive Systems, Ltd.
InventorKunito NOGUCHI
Life of this patent
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Abstract
An electric fluid pump includes at least one crossover guide including a guide groove to guide a takeout wire segment of a winding wire defining windings, to a connection terminal located on a radial inner side of the guide groove. The guide groove of the crossover guide includes a takeout groove segment extending in a direction decreasing a radial distance from a center axis of the stator gradually and thereby holding the takeout wire segment of one phase on a radial inner side of crossover wire segments of the other phases.
Claims6
An electric fluid pump comprising:
- a pump section;
- a motor section including,
- a rotor section and
- a stator section including,
- a plurality of U phase winding sections each wound on a bobbin,
- a plurality of V phase winding sections each wound on a bobbin,
- a plurality of W phase winding sections each wound on a bobbin;
- and
- connection terminals to supply drive signals to the winding sections to rotate the rotor section and thereby to drive the motor section;
- the winding sections of each phase being connected by a crossover wire segment guided by a crossover guide formed in the stator section, and further connected with one of the connection terminals through a takeout wire segment connected with a connection portion of the connection terminal;
- the connection portion of the connection terminal of each phase being formed on a side opposite to a side on which the bobbins of the stator section are located,
- at least one of the crossover guides including a guide groove which is arranged to guide the takeout wire segment of one of three phases toward the connection portion of an adjacent one of the connection terminals located on a radial inner side of the guide groove, and which includes a takeout groove segment extending in a direction decreasing a radial distance gradually and thereby holding the takeout wire segment on a radial inner side of the crossover wire segments of the other phases.
9 more elements
Dependencies are inferred from the claim text.