초록 ▼

A leading end portion of a lead wire holder located in a direction opposite to a direction in which six lead wires extend is inserted toward concave surfaces through an insertion opening. After the leading end portion has entered toward the concave surfaces and gotten out therefrom, the leading end

A leading end portion of a lead wire holder located in a direction opposite to a direction in which six lead wires extend is inserted toward concave surfaces through an insertion opening. After the leading end portion has entered toward the concave surfaces and gotten out therefrom, the leading end portion is situated between opposed surfaces of hooks and a holder receiving portion bottom surface. With this arrangement, a back surface of a rear end portion located opposite to the leading end portion of the lead wire holder comes into contact with end surface portions of partitioning wall portions. An end surface portion of the rear end portion faces projecting portions. Then, the six lead wires are partially received in six lead wire receiving portions, respectively.

대표청구항 ▼

What is claimed is: 1. A stator for a rotary electric machine comprising: a stator core including a plurality of magnetic pole portions; windings of one or more phases wound on the magnetic pole portions of the stator core; a slot insulator made of an insulating resin, attached to the stator core t

What is claimed is: 1. A stator for a rotary electric machine comprising: a stator core including a plurality of magnetic pole portions; windings of one or more phases wound on the magnetic pole portions of the stator core; a slot insulator made of an insulating resin, attached to the stator core to provide electric insulation between the stator core and the windings of one or more phases; and a lead wire holding structure that holds N (N being an integer of two or more) lead wires for external connections, to which a plurality of lead-out wires of the windings of one or more phases are connected, the lead wire holding structure being fixed to the slot insulator, the lead wire holding structure including: a plate-like lead wire holder that holds the N lead wires in such a manner that one end of each of core wires of the N lead wires is exposed and the core wires are arranged at predetermined intervals, the plate-like lead wire holder having a front surface and a back surface; and a holder mounting portion to which the lead wire holder is mounted, whereby the lead wire holder is held with respect to the slot insulator, the lead wire holder having N through holes into which the core wires of the N lead wires are respectively inserted, the N through holes being open in both of the front and back surfaces and disposed at the predetermined intervals in a direction where the N lead wires are arranged, the core wires of the N lead wires being inserted into the N through holes in the lead wire holder from the back surface of the lead wire holder to protrude out of the front surface, and the N lead wires extending along the back surface in the same direction, the holder mounting portion including: a supporting surface including a first supporting surface constituent portion and a second supporting surface constituent portion, which partially supports the back surface of the lead wire holder; opposed surfaces that partially face a peripheral edge portion of the front surface of the lead wire holder; N lead wire receiving portions that respectively receive portions of the N lead wires arranged at intervals along the back surface of the lead wire holder, and that are disposed lower than a hypothetical plane containing the supporting surface as a lower direction is defined in which the supporting surface is located lower than the opposed surfaces and an upper direction is defined in which the opposed surfaces are located higher than the supporting surface; N−1 partitioning wall portions each disposed between adjacent two of the lead wire receiving portions, extending in the upper direction to partition the adjacent two of the lead wire receiving portions, the N lead wire receiving portions each having a lead wire exit that opens toward one side of an orthogonal direction orthogonal to both of the lower direction and a direction where the N−1 partitioning wall portions are arranged and allows the lead wires to extend outwardly from the lead wire receiving portions, the N−1 partitioning wall portions each including a partitioning wall main portion and a projecting portion, the partitioning wall main portion having an end surface in the upper direction, part of the end surface partially constituting the first supporting surface constituent portion, the projecting portion extending in the upper direction from an end of the partitioning wall main portion located side by side with the lead wire exit, wherein the part of the end surface of each of the N−1 partitioning wall portions, which constitutes the first supporting surface constituent portion, is located adjacent to the projecting portion, a concave surface is formed on the end surface of each of the N−1 partitioning wall portions so as to be continuous with the first supporting surface constituent portion and so as to take on a convex shape toward the lower direction, the second supporting surface constituent portion is continuous with the concave surface and extends away from the lead wire exit in the orthogonal direction, an insertion opening is formed in the vicinity of the projecting portions, whereby a leading end portion of the lead wire holder, located in a direction opposite to the direction where the N lead wires extend, is inserted toward the concave surfaces through the insertion opening, the lead wire holding structure is configured so that the leading end portion is inserted toward the concave surfaces through the insertion opening, and then gets out of the concave surface to situate the lead wire holder between the opposed surfaces and the supporting surface whereby the N lead wires are partially received in the N lead wire receiving portions, respectively, a part of the opposed surfaces are disposed to face the second supporting surface constituent portion, and remainders of the opposed surfaces are disposed on a side of the first supporting surface constituent portion rather than on a side of the second supporting surface constituent portion, not facing the first supporting surface constituent portion, a shape of the concave surface, a shape of the projecting portion, positions of the part of the opposed surfaces that face the second supporting surface constituent portion, positions of the remainders of the opposed surfaces that do not face the first supporting surface constituent portion, and a shape of each of the lead wire receiving portions are defined so that after the leading end portion of the lead wire holder has been inserted toward the concave surfaces through the insertion opening, the lead wire holder is situated between the part of the opposed surfaces that face the second supporting surface constituent portion and the second supporting surface constituent portion, a back surface of a rear end portion located on a side opposite to the leading end portion of the lead wire holder is brought into contact with the first supporting surface constituent portion, an end surface of the rear end portion faces the projecting portions, and the N lead wires are partially received in the lead wire receiving portions, respectively, the holder mounting portion includes a pair of opposed wall portions respectively disposed at either end thereof in a direction where the N lead wire receiving portions and the N−1 partitioning wall portions are alternately arranged, the pair of opposed wall portions extending in the upper direction with respect to the opposed surfaces, the pair of opposed wall portions each includes a pair of hooks integrally provided at each of the opposed wall portions, the pair of hooks projecting in a mutually facing direction, and the pair of hooks are spaced from each other in the orthogonal direction, and surfaces of the pair of hooks, which face the supporting surface, constitute the opposed surfaces. 2. The stator for a rotary electric machine according to claim 1, wherein a hook portion taper is formed at a lower outside corner portion of one of the pair of hooks, the one hook being located on a side of the lead wire exit in the orthogonal direction, a partitioning wall portion taper is formed at an upper inside corner portion of the projecting portion of each of the N−1 partitioning wall portions and the insertion opening is defined by a gap between the hook portion taper and the partitioning wall portion taper. 3. The stator for a rotary electric machine according to claim 1, wherein the lead wire holding structure is covered with a cover member which is engaged with the holder mounting portion to prevent the lead wire holder from falling off from the holder mounting portion. 4. The stator for a rotary electric machine according to claim 1, wherein the lead wire holder is composed of a circuit substrate with a circuit pattern formed thereon; and conductive wires extending from the windings are respectively soldered at predetermined positions of the circuit pattern on the front surface of the lead wire holder.