JP2013187942A5

JP2013187942A5 -

Info

Publication number: JP2013187942A5
Application number: JP2012049216A
Authority: JP
Filing date: 2012-03-06
Publication date: 2013-11-28
Anticipated expiration: 2032-03-06

Claims

A unit core composed of a pole piece having a split structure including a back yoke portion and a teeth portion protruding from the back yoke portion;
A first insulating bobbin and a second insulating bobbin fitted to the magnetic pole piece;
A winding wound around the teeth portion via the first insulating bobbin and the second insulating bobbin;
The first insulating bobbin has an outer wall and an inner wall whose inner diameter is smaller than a tooth inner diameter of the magnetic pole piece, and a jumper storage groove for storing a connecting wire of the winding is formed on the outer diameter side of the inner wall. Provided, further provided with a slit on the inner wall through the crossover in the circumferential direction, and further provided with a protrusion protruding toward the inner diameter side,
The second insulating bobbin has a configuration in which the outer wall and the inner wall are larger in inner diameter than the teeth inner diameter of the pole piece.
A stator of a rotating electrical machine in which the winding wound around each tooth portion of each magnetic pole piece of the same phase is routed without being cut halfway between the magnetic pole pieces.

The connecting wire storage groove for storing the connecting wire of the winding provided on the inner wall of the first insulating bobbin is provided in a three-stage axial direction, and further passes the connecting wire in the circumferential direction provided on the inner wall. 2. The stator for a rotating electrical machine according to claim 1, wherein the slit is provided at two locations, and the protrusions protruding toward the inner diameter side are one between the slits and two at each end in the circumferential direction of the slit in the axial direction. .

The stator for a rotating electrical machine according to claim 1 or 2, wherein two crossover grooves are provided in the outer wall of the first insulating bobbin in the axial direction.

The stator of the rotating electrical machine according to any one of claims 1 to 3, wherein a connecting wire of the winding is disposed on an inner diameter side and an outer diameter side of the inner wall through the slit of the inner wall.

The stator for a rotating electrical machine according to any one of claims 1 to 4, which is applied to a rotating electrical machine for three-phase alternating current.

Applied to a rotating electrical machine for three-phase alternating current, the connecting wire of the U-phase, V-phase, and W-phase windings passes through the slit of the inner wall, and the upper or lower side in the axial direction of the protrusion on the inner diameter side of the inner wall The stator of the rotating electrical machine according to claim 4, wherein the stator is arranged to prevent interference between the connecting wires of the U-phase, V-phase, and W-phase windings.

An inner diameter extension is further provided at the axially lower end of the inner wall of the first insulating bobbin,
The stator for a rotating electrical machine according to any one of claims 1 to 6, wherein a substrate having a sensor is installed in the inner diameter extension portion.

A configuration in which a concave portion is provided in the back yoke fitting portion of the first insulating bobbin, a conductive member is attached to the concave portion, and a neutral point of the winding end line of each phase winding is connected to the conductive member. The stator for a rotating electrical machine according to any one of claims 1 to 6.

The stator for a rotating electrical machine according to any one of claims 1 to 6, wherein the first insulating bobbin and the second insulating bobbin fitted to the magnetic pole piece are integrally formed.

The stator of the rotating electrical machine according to any one of claims 1 to 6, wherein a rotor escape portion is provided on an inner diameter side of the inner wall of the first insulating bobbin.

A unit core composed of a pole piece having a split structure including a back yoke portion and a teeth portion protruding from the back yoke portion;
A first insulating bobbin and a second insulating bobbin fitted to the magnetic pole piece;
A winding wound around the teeth portion via the first insulating bobbin and the second insulating bobbin;
The first insulating bobbin has an outer wall and an inner wall whose inner diameter is smaller than a tooth inner diameter of the magnetic pole piece, and a jumper storage groove for storing a connecting wire of the winding is formed on the outer diameter side of the inner wall. Provided in three axis directions, and further provided with two slits on the inner wall for passing a crossover in the circumferential direction, and one protrusion protruding toward the inner diameter side between the slits and both circumferential ends of the slit With two each in the axial direction,
The second insulating bobbin includes a stator of a rotating electric machine having a configuration in which the outer wall and the inner wall are larger in inner diameter than the teeth inner diameter of the pole piece,
An iron core holding jig having a rotation axis in the stacking direction of the magnetic pole pieces;
Using a winding device provided with a winding supply winding flyer that turns around a rotating shaft arranged in a direction orthogonal to the rotating shaft of the iron core holding jig and supplies a winding.
The first and second sets of magnetic pole pieces, the third and fourth sets of magnetic pole pieces, and the first and second magnetic pole pieces are described above. The circumferential end surfaces of the back yoke portion are adjacent to each other, the teeth portions are arranged in a V shape, and the third and fourth magnetic pole pieces are the same as the first and second magnetic pole pieces. The circumferential end surfaces of the back yoke portions are adjacent to each other at positions spaced apart in the circumferential direction around the rotation axis of the iron core holding jig, and the teeth portions are attached in a V shape. 1 process,
A second step of winding the winding on the teeth portion of the first magnetic pole piece by the flyer;
A third step of causing the second magnetic pole piece to face the flyer by rotating the iron core holding jig without cutting the winding;
A fourth step of winding the winding on the teeth portion of the second magnetic pole piece by the flyer;
A fifth step of causing the third magnetic pole piece to face the flyer by rotating the iron core holding jig without cutting the winding, and ensuring a predetermined length of the connecting wire between the spaced teeth;
A sixth step of winding the winding by the flyer on the teeth portion of the third magnetic pole piece;
A seventh step of causing the fourth magnetic pole piece to face the flyer by rotating the iron core holding jig without cutting the winding;
An eighth step of winding the winding by the flyer on the teeth portion of the fourth pole piece;
A ninth step of removing each of the wound unit cores and transforming each pair of the magnetic pole pieces adjacent to each other into an arc shape;
A tenth step of assembling the four pole pieces that have undergone each of the steps as a set, and arranging them in multiples of 3 to form a ring;
When assembling the ring, the connecting wire between the spacing teeth passes through the slit provided on the inner wall of the first insulating bobbin, and the upper or lower side in the axial direction of the protrusion on the inner diameter side of the inner wall An eleventh step to be arranged in
A twelfth step of arranging the connecting wire between the spaced teeth after the annular assembly in the connecting wire storing groove provided on the outer diameter side of the inner wall of the first insulating bobbin;
A method of manufacturing a stator of a rotating electrical machine, comprising a thirteenth step of connecting winding end wires of respective phases as neutral points.

The stator of the rotating electrical machine is further provided with two steps of crossover housing grooves in the axial direction on the outer wall of the first insulating bobbin,
In the third step, the fifth step, the seventh step, and the thirteenth step, the crossover wires are stored along the crossover storage grooves provided on the outer wall of the first insulating bobbin. The method for manufacturing a stator for a rotating electrical machine according to claim 11, wherein a procedure is added.

The method for manufacturing a stator of a rotating electrical machine according to claim 11 or 12, wherein a step of connecting a neutral point of the winding end line of the winding of each phase to a conductive member is added.

A unit core composed of a pole piece having a split structure including a back yoke portion and a teeth portion protruding from the back yoke portion;
A first insulating bobbin and a second insulating bobbin fitted to the magnetic pole piece;
A winding wound around the teeth portion via the first insulating bobbin and the second insulating bobbin;
The first insulating bobbin has an outer wall and an inner wall whose inner diameter is smaller than a tooth inner diameter of the magnetic pole piece, and a jumper storage groove for storing a connecting wire of the winding is formed on the outer diameter side of the inner wall. Provided in three axis directions, and further provided with two slits on the inner wall for passing a crossover in the circumferential direction, and one protrusion protruding toward the inner diameter side between the slits and both circumferential ends of the slit Are provided with two each in the axial direction, and further provided with two steps in the axial direction in the crossover groove on the outer wall,
The second insulating bobbin includes a stator of a rotating electric machine having a configuration in which the outer wall and the inner wall are larger in inner diameter than the teeth inner diameter of the pole piece,
An iron core holding jig having a rotation axis in the stacking direction of the magnetic pole pieces;
Using a winding device provided with a winding supply winding flyer that turns around a rotating shaft arranged in a direction orthogonal to the rotating shaft of the iron core holding jig and supplies a winding.
The first to n-th n (n = 2 or larger integer) sets of the magnetic pole pieces on the iron core holding jig are substantially point-symmetrical or at the same angular interval with respect to the center of the iron core holding jig. A first step of arranging
A second step of winding the winding on the teeth portion of the first magnetic pole piece by the flyer;
A third step of causing the second magnetic pole piece to face the flyer by rotating the iron core holding jig without cutting the winding, and ensuring a predetermined length of the connecting wire between the spaced teeth;
A fourth step of winding the winding on the teeth portion of the second magnetic pole piece by the flyer;
when n is 3 or more, a fifth step of performing the third step and the fourth step on the third to n-th pole pieces;
A sixth step of removing each unit core around which the winding is wound from the iron core holding jig, and arranging the teeth portion so as to have an arc shape;
A seventh step in which n pieces of the magnetic pole pieces that have undergone each of the steps are set as one set, and multiple sets of the magnetic pole pieces are arranged in a ring shape;
When assembling the ring, the connecting wire between the spacing teeth passes through the slit provided in the inner wall of the first insulating bobbin, and the upper or lower side in the axial direction of the protrusion on the inner diameter side of the inner wall An eighth step of arranging
A ninth step of arranging the connecting wire between the spaced teeth after annular assembly in the connecting wire storage groove provided on the outer diameter side of the inner wall of the first insulating bobbin;
A tenth step in which a winding end portion is housed in the connecting wire housing groove provided on the outer wall of the first insulating bobbin for the winding end line of each phase and the neutral point is connected;
The manufacturing method of the stator of the rotary electric machine which consists of.

The method for manufacturing a stator of a rotating electrical machine according to claim 14, wherein a step of connecting a neutral point of the winding end line of the winding of each phase to a conductive member is added.