JP5705153B2 - Rotating electric machine stator and rotating electric machine stator manufacturing method - Google Patents

Description

  The present invention relates to a stator of a rotating electric machine having a configuration in which a winding is wound around a tooth portion of a pole piece via an insulating bobbin, and a method of manufacturing the same.

In a rotating electrical machine in which a winding is wound around a tooth portion of a stator via an insulating bobbin, it is necessary to prevent crossover wires of each phase having a large potential difference.
A winding is wound around each divided core via an insulator, and at that time, a plurality of crossovers connecting the windings are stored in a crossover storage groove provided in the insulator, thereby allowing a potential difference. A stator of a rotating electrical machine having a configuration in which the crossover wires of each phase having a large length are prevented from being contacted is disclosed (for example, see Patent Document 1).
In addition, while winding the winding around the split core via an insulator, when the split cores are connected to each other, the potential difference is generated by winding the connecting wire drawn from each tooth portion around the protrusion provided on the insulator. There is disclosed a stator of a rotary electric motor which prevents contact between large crossover wires of each phase and then connects each crossover wire wound around a protrusion to a stator terminal by soldering (for example, a patent) Reference 2).

JP 2010-246353 A (paragraphs [0019] to [0022], [0045] and FIGS. 5 and 9) JP 2002-209359 A (paragraphs [0020], [0021]

  In the stator of the rotating electrical machine disclosed in Patent Document 1, the winding is wound around the tooth portion via the insulating bobbin, and the connecting bobbin storing groove for storing the terminal portion of the winding is provided on the insulating bobbin. The terminal portion receiving groove is formed with a tapered portion that is gradually inclined toward the protruding side of the tooth portion. For this reason, it is possible to effectively prevent the jumper wires from falling out of the terminal portion storage grooves, and thus it is possible to eliminate contact between the jumper wires having a large potential difference. However, it is necessary to move the connecting wire to the connecting wire storage groove on the outer diameter side after the integration work of the split cores, and there is a problem that workability is poor.

  Moreover, in the stator of the rotating electrical machine disclosed in Patent Document 2, the connecting wires having a large potential difference are prevented from coming into contact with each other by winding the connecting wires around a protrusion provided on the insulator. However, when connecting the connecting wires drawn out from each phase, it takes time to connect each connecting wire wound around the protrusion to the stator terminal, which deteriorates the line work. Moreover, since it is necessary to add a stator terminal for connection, there is a problem that the number of parts increases.

  The present invention has been made to solve the above-described problems, and it is possible to prevent the contact between the crossover wires of each phase having a large potential difference. An object of the present invention is to provide a stator for a rotating electrical machine with good performance and a method for manufacturing the same.

A stator of a rotating electrical machine according to the present invention includes 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, and a first insulation fitted to the pole piece. A bobbin for insulation, a second insulation bobbin, a first insulation bobbin, and a winding wound around the tooth portion via the second insulation bobbin, and the first insulation bobbin includes an outer wall, The inner diameter has an inner wall smaller than the teeth inner diameter of the pole piece, the outer diameter side of the inner wall is provided with a connecting wire storage groove for storing the connecting wire of the winding, and the inner wall passes the connecting wire in the circumferential direction. The second insulating bobbin includes a slit and a protrusion protruding toward the inner diameter side. The second insulating bobbin has an outer wall and an inner wall whose inner diameter dimension is larger than the teeth inner diameter dimension of the pole piece. The winding wound around the teeth is the way between the pole pieces. In be cut and routed without a slit through the first of said lines over the circumferential direction with the inner wall of the insulating bobbin is 2 points, slits projections of two positions further projecting radially inwardly Are provided at both ends in the circumferential direction .
A stator of a rotating electrical machine according to the present invention includes 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, and a first insulation fitted to the pole piece. A bobbin for insulation, a second insulation bobbin, a first insulation bobbin, and a winding wound around the tooth portion via the second insulation bobbin, and the first insulation bobbin includes an outer wall, The inner diameter has an inner wall smaller than the teeth inner diameter of the pole piece, the outer diameter side of the inner wall is provided with a connecting wire storage groove for storing the connecting wire of the winding, and the inner wall passes the connecting wire in the circumferential direction. The second insulating bobbin includes a slit and a protrusion protruding toward the inner diameter side. The second insulating bobbin has an outer wall and an inner wall whose inner diameter dimension is larger than the teeth inner diameter dimension of the pole piece. The winding wound around the teeth is the way between the 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 the three-stage axial direction, and further provided on the inner wall. There are two slits through which the crossover wire passes in the circumferential direction, and there are two protrusions protruding toward the inner diameter side and two in the axial direction at both ends in the circumferential direction of the slit.

  A method of manufacturing a stator for a rotating electrical machine according to the present invention includes 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, and a first fitting fitted to the pole piece. A first insulating bobbin, a second insulating bobbin, a first insulating bobbin, and a winding wound around the tooth portion via the second insulating bobbin. The outer wall and the inner diameter have an inner wall smaller than the inner diameter of the teeth of the magnetic pole piece, and on the outer diameter side of the inner wall, a jumper storage groove for storing the connecting wire of the winding is provided in the three-stage axial direction. Has two slits for passing the crossover in the circumferential direction, and further has one protrusion between the slits and two in the axial direction at both ends in the circumferential direction of the slit. For bobbins, the outer wall and inner diameter are the same as the teeth inner diameter of the pole piece. A rotating electric machine stator having a larger inner wall, an iron core holding jig having a rotation axis in the stacking direction of the pole pieces, and a rotation axis arranged in a direction perpendicular to the rotation axis of the iron core holding jig And a winding device provided with a winding supply winding flyer for turning the winding to supply windings, a first and a second set of magnetic pole pieces, In the first and second pole pieces, the circumferential end surfaces of the back yoke portions are adjacent to each other, the teeth portions are arranged in a V shape, and the third and second pole pieces are arranged in a V shape. For the magnetic pole pieces 4, the circumferential end surfaces of the back yoke portion are adjacent to each other at positions spaced apart from the first and second magnetic pole pieces in the circumferential direction around the rotation axis of the iron core holding jig. The first step in which the teeth portions are attached to each other in a V shape, and the teeth portion of the first pole piece is attached to the flyer. A second step of winding the coil winding, 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 teeth of the second magnetic pole piece A fourth step of winding the winding wire with a flyer on the part, and the third magnetic pole piece is opposed to the flyer by rotating the iron core holding jig without cutting the winding wire, and the connecting wire between the spaced teeth is a predetermined length A fifth step of securing the thickness, a sixth step of winding a winding by a flyer around the teeth portion of the third pole piece, and a fourth magnetic pole by rotating the iron core holding jig without cutting the winding. A seventh step in which the piece is opposed to the flyer, an eighth step in which the winding is wound around the teeth portion of the fourth magnetic pole piece by the flyer, and the wound unit cores are removed and two adjacent ones 1 A ninth step of deforming each pole piece of the set into an arc shape; and The four pole pieces having undergone the above process are set as one set, and a multiple of 3 are arranged side by side to form a tenth step, and when connecting to the ring, the connecting wire between the spaced teeth is connected to the inner wall of the first insulating bobbin. And a thirteenth step of connecting the winding end line of each phase winding as a neutral point through a slit provided in the inner wall of the projection on the inner diameter side of the inner wall. It consists of

A method of manufacturing a stator for a rotating electrical machine according to the present invention includes 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, and a first fitting fitted to the pole piece. A first insulating bobbin, a second insulating bobbin, a first insulating bobbin, and a winding wound around the tooth portion via the second insulating bobbin. The outer wall and the inner diameter have an inner wall smaller than the inner diameter of the teeth of the magnetic pole piece, and on the outer diameter side of the inner wall, a jumper storage groove for storing the connecting wire of the winding is provided in the three-stage axial direction. Is equipped with two slits that allow the crossover to pass in the circumferential direction, and one protrusion between the slits and two in the axial direction at both ends in the circumferential direction of the slit. A second insulating bobbin is provided with two stages of wire storage grooves in the axial direction. The outer wall and the inner diameter dimension of the stator of the rotating electrical machine having the inner wall larger than the teeth inner diameter dimension of the pole piece, the iron core holding jig having the rotation axis in the stacking direction of the pole pieces, and the rotation axis of the iron core holding jig And a winding device provided with a winding supply winding flyer that turns around a rotating shaft arranged in a direction perpendicular to the axis and supplies the winding, and uses a first to n-th n as the iron core holding jig. A first step of arranging a set of magnetic pole pieces (integers greater than or equal to 2) so as to be substantially point-symmetrical or at the same angular intervals with respect to the center of the iron core holding jig; The second step of winding the windings on the teeth portion of the teeth by the flyer, and the second magnetic pole piece is opposed to the flyer by rotating the iron core holding jig without cutting the winding, and the connecting wire between the spaced teeth A third step for securing a predetermined length and a flyer on the teeth portion of the second pole piece A fourth step of winding the winding, and a fifth step of performing the third step and the fourth step on the third to n-th pole pieces when n is 3 or more, Each unit core around which the winding 4 is wound is removed from the iron core holding jig, and arranged so as to form a circular arc shape of the teeth portion, and two magnetic pole pieces that have undergone each step are taken as one set. A seventh step in which multiple sets of 3 are arranged side by side and assembled into an annular shape, and when the annular structure is assembled, the connecting wire between the spaced teeth is passed through a slit provided on the inner wall of the first insulating bobbin, and the axis of the projection on the inner diameter side of the inner wall And an eighth step of arranging the connecting wire between the spaced teeth in the connecting wire storage groove provided on the outer diameter side of the inner wall of the first insulating bobbin after the annular assembly. Crossover wire storing groove in which process and winding end line of each phase are provided on outer wall of first insulating bobbin And a tenth step in which the winding terminal portion is housed and the neutral point is connected.
A method of manufacturing a stator of a rotating electrical machine according to the present invention is fitted to a magnetic pole piece, a unit core composed of a magnetic pole piece having a split structure including a back yoke portion and a tooth portion protruding from the back yoke portion. A first insulating bobbin comprising: a first insulating bobbin; a second insulating bobbin; a first insulating bobbin; and a winding wound around the tooth portion via the second insulating bobbin. The inner wall has an inner wall whose inner diameter is smaller than the inner diameter of the teeth of the pole piece, a jumper housing groove is provided on the outer diameter side of the inner wall to store the connecting wire of the winding, and the inner wall is provided in the circumferential direction. The second insulating bobbin is provided with a slit through which the connecting wire passes, and a protrusion protruding toward the inner diameter side, and the second insulating bobbin has an outer wall and an inner wall whose inner diameter is larger than the teeth inner diameter of the pole piece. Winding wound around each tooth part of the pole piece The slits that are routed without being cut in the middle between the pole pieces, and that pass through the connecting wire in the circumferential direction provided on the inner wall of the first insulating bobbin, are two protrusions, and further protruded toward the inner diameter side Is a stator of a rotating electrical machine provided on both ends in the circumferential direction of two slits, an iron core holding jig having a rotation axis in the stacking direction of the magnetic pole pieces, and orthogonal to the rotation axis of the iron core holding jig A winding device provided with a winding supply winding flyer that turns around a rotating shaft arranged in a direction to supply the winding and uses the first and second two 1 A pair of magnetic pole pieces and a pair of third and fourth magnetic pole pieces. For the first and second magnetic pole pieces, circumferential end surfaces of the back yoke portions are adjacent to each other, and each tooth portion is V The third and fourth magnetic pole pieces are arranged in a letter shape, and the iron core with respect to the first and second magnetic pole pieces. A first step in which 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 holding jig, and the teeth portions are attached to each other in a V shape; A second step of winding the winding on the teeth portion of the first magnetic pole piece by the flyer, and the second magnetic pole piece is opposed to the flyer by rotating the iron core holding jig without cutting the winding; A third step of rotating the iron core holding jig without cutting the winding, and a third step of winding the winding on the teeth portion of the second pole piece by a flyer. A fifth step of securing a predetermined length of the connecting wire between the spaced apart teeth facing the flyer, a sixth step of winding the winding by the flyer around the teeth portion of the third magnetic pole piece, and cutting the winding The fourth magnetic pole by rotating the iron core holding jig without A seventh step in which the piece is opposed to the flyer, an eighth step in which the winding is wound around the teeth portion of the fourth magnetic pole piece by the flyer, and the wound unit cores are removed and two adjacent ones 1 A ninth step of deforming each magnetic pole piece of the set into an arc shape, a tenth step of arranging the four magnetic pole pieces that have undergone each step as a set, and arranging them in multiples of 3 to form an annular shape; An eleventh step in which the connecting wire between the spaced teeth is passed through the slit provided on the inner wall of the first insulating bobbin when assembling and arranged on the upper side or the lower side of the protrusion on the inner diameter side of the inner wall; This comprises a twelfth step in which the connecting wire between the spaced teeth is disposed in the connecting wire storage groove provided on the outer diameter side of the inner wall of the first insulating bobbin.

A stator of a rotating electrical machine according to the present invention includes a unit core composed of a pole piece having a split structure including a back yoke portion and a tooth portion protruding from the back yoke portion, and a first core fitted to the pole piece. An insulating bobbin, a second insulating bobbin, a first insulating bobbin, and a winding wound around the tooth portion via the second insulating bobbin, the first insulating bobbin having an outer wall The inner diameter of the pole piece is smaller than the inner diameter of the teeth of the pole piece, the outer diameter side of the inner wall is provided with a connecting wire storage groove for storing the connecting wire of the winding, and the inner wall is provided with a connecting wire in the circumferential direction. The second insulating bobbin has a configuration including an outer wall and an inner wall whose inner diameter is larger than the teeth inner diameter of the magnetic pole piece. The winding wound around each tooth is between the pole pieces. Have been drawn without being cut halfway, a slit for passing a first of said lines over the circumferential direction with the inner wall of the insulating bobbin is 2 points, the projections of the two positions further projecting radially inwardly Since it is provided on both ends of the slit in the circumferential direction , the workability is improved by eliminating the work of moving the crossover wire to the outer diameter side during the crossover arrangement work after the core is integrated. There is no need to add a separate part such as a terminal, and an inexpensive stator for a rotating electrical machine can be provided.
A stator of a rotating electrical machine according to the present invention includes a unit core composed of a pole piece having a split structure including a back yoke portion and a tooth portion protruding from the back yoke portion, and a first core fitted to the pole piece. An insulating bobbin, a second insulating bobbin, a first insulating bobbin, and a winding wound around the tooth portion via the second insulating bobbin, the first insulating bobbin having an outer wall The inner diameter of the pole piece is smaller than the inner diameter of the teeth of the pole piece, the outer diameter side of the inner wall is provided with a connecting wire storage groove for storing the connecting wire of the winding, and the inner wall is provided with a connecting wire in the circumferential direction. The second insulating bobbin has a configuration including an outer wall and an inner wall whose inner diameter is larger than the teeth inner diameter of the magnetic pole piece. The winding wound around each tooth is between the 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 the three-stage axial direction, and is provided on the inner wall. Since there are two slits through which the connecting wire passes in the circumferential direction, and there are two protrusions protruding inward on the inner diameter side and two in the axial direction at both ends in the circumferential direction of the slit, the core is integrated. Eliminating the work of moving the crossover wire to the outer diameter side during the subsequent crossover wire placement work improves workability and eliminates the need to add another part such as a stator terminal. It becomes possible to provide.

  A method of manufacturing a stator of a rotating electrical machine according to the present invention is fitted to a magnetic pole piece, a unit core composed of a pole piece having a divided structure including a back yoke portion and a tooth portion protruding from the back yoke portion. A first insulating bobbin comprising: a first insulating bobbin; a second insulating bobbin; a first insulating bobbin; and a winding wound around the tooth portion via the second insulating bobbin. The inner wall has an inner wall whose inner diameter is smaller than the inner diameter of the teeth of the pole piece. A jumper receiving groove for receiving a jumper wire is provided in the three-stage axial direction on the outer diameter side of the inner wall. Has two slits that let the crossover pass in the circumferential direction, and further has one protrusion between the slits and two in the axial direction at both ends in the circumferential direction of the slit. The bobbin for insulation has the outer wall and inner diameter dimensions of the pole piece teeth inner diameter dimension. A stator of a rotating electrical machine having an inner wall larger than the method, an iron core holding jig having a rotation axis in the stacking direction of the pole pieces, and a rotation axis arranged in a direction perpendicular to the rotation axis of the iron core holding jig Using a winding device provided with a winding supply winding flyer that pivots to the center and supplies the winding, the iron core holding jig is provided with a pair of first and second magnetic pole pieces, The fourth pair of magnetic pole pieces, the first and second magnetic pole pieces, the circumferential end surfaces of the back yoke portions are adjacent to each other, and the teeth portions are arranged in a V shape, and third, Regarding the fourth magnetic pole piece, the circumferential end faces of the back yoke portion are adjacent to each other at positions spaced apart from the first and second magnetic pole pieces in the circumferential direction around the rotation axis of the iron core holding jig. The first step in which the teeth portions are attached in a V shape and disposed, and the teeth portion of the first pole piece is fried. A second step of winding the winding by the third step, a third step of facing the second pole piece to the flyer by rotating the iron core holding jig without cutting the winding, and teeth of the second pole piece A fourth step of winding the winding wire with a flyer on the part, and the third magnetic pole piece is opposed to the flyer by rotating the iron core holding jig without cutting the winding wire, and the connecting wire between the spaced teeth is a predetermined length A fifth step of securing the thickness, a sixth step of winding a winding by a flyer around the teeth portion of the third pole piece, and a fourth magnetic pole by rotating the iron core holding jig without cutting the winding. A seventh step in which the piece is opposed to the flyer, an eighth step in which the winding is wound around the teeth portion of the fourth magnetic pole piece by the flyer, and the wound unit cores are removed and two adjacent ones 1 A ninth step of deforming each pole piece of the set into an arc shape; The four magnetic pole pieces that have undergone each process are set as a set, and a multiple of 3 are arranged side by side to form an annular shape, and the connecting wire between the spaced teeth is assembled to the first insulating bobbin when the annular shape is assembled. An eleventh step of disposing the inner wall on the inner diameter side of the inner wall, and passing the connecting wire between the spaced teeth after the annular assembly through the slit provided on the inner wall of the first insulating bobbin; Since it consists of a twelfth step to be arranged on the lower side and a thirteenth step to connect the winding end line of the winding of each phase as a neutral point, during the crossover arrangement work after core integration Eliminating the work of moving the connecting wire to the outer diameter side improves the workability, and it is not necessary to add another part such as a stator terminal, and it becomes possible to manufacture an inexpensive stator for a rotating electrical machine.

A method of manufacturing a stator of a rotating electrical machine according to the present invention is fitted to a magnetic pole piece, a unit core composed of a pole piece having a divided structure including a back yoke portion and a tooth portion protruding from the back yoke portion. A first insulating bobbin comprising: a first insulating bobbin; a second insulating bobbin; a first insulating bobbin; and a winding wound around the tooth portion via the second insulating bobbin. The inner wall has an inner wall whose inner diameter is smaller than the inner diameter of the teeth of the pole piece. A jumper receiving groove for receiving a jumper wire is provided in the three-stage axial direction on the outer diameter side of the inner wall. Has two slits that let the crossover pass in the circumferential direction, and further has one protrusion between the slits and two in the axial direction at both ends in the circumferential direction of the slit. Two crossover storage grooves are provided in the axial direction to provide a second insulation The outer wall and the inner diameter dimension of the rotating electric machine with the inner wall larger than the teeth inner diameter dimension of the pole piece, the iron core holding jig having the rotation axis in the stacking direction of the pole pieces, and the iron core holding jig A winding device including a winding supply winding flyer that turns around a rotating shaft arranged in a direction perpendicular to the rotating shaft and supplies the winding is used, and the first to nth iron core holding jigs are used. A first step of arranging a set of n (n = 2 or more) magnetic pole pieces at substantially the same point symmetrical position or the same angular interval position with respect to the center of the iron core holding jig, A second step of winding a winding on the teeth portion of the pole piece with a flyer, and the second pole piece is opposed to the flyer by rotating the iron core holding jig without cutting the winding, and the gap between the spaced teeth A third step of securing a predetermined length of wire, and a fly on the teeth of the second pole piece A fourth step of winding the winding with the fifth step of performing the third step and the fourth step on the third to n-th pole pieces when n is 3 or more, Each unit core around which the winding 4 is wound is removed from the iron core holding jig, and arranged so as to form a circular arc shape of the teeth portion, and two magnetic pole pieces that have undergone each step are taken as one set. A seventh step in which multiple sets of 3 are arranged side by side and assembled into an annular shape, and when the annular structure is assembled, the connecting wire between the spaced teeth is passed through a slit provided on the inner wall of the first insulating bobbin, and the axis of the projection on the inner diameter side of the inner wall And an eighth step of arranging the connecting wire between the spaced teeth in the connecting wire storage groove provided on the outer diameter side of the inner wall of the first insulating bobbin after the annular assembly. A crossover wire provided on the outer wall of the first insulating bobbin with the process and winding end line of each phase Since the winding end portion is housed in the groove and the neutral point is connected to the tenth step, the connecting wire is moved to the outer diameter side when the connecting wire is arranged after the core is integrated. Eliminating the work to be moved improves workability, and it is not necessary to add another part such as a stator terminal, and it is possible to manufacture an inexpensive stator for a rotating electrical machine.
A method of manufacturing a stator of a rotating electrical machine according to the present invention is fitted to a magnetic pole piece, a unit core composed of a magnetic pole piece having a split structure including a back yoke portion and a tooth portion protruding from the back yoke portion. A first insulating bobbin comprising: a first insulating bobbin; a second insulating bobbin; a first insulating bobbin; and a winding wound around the tooth portion via the second insulating bobbin. The inner wall has an inner wall whose inner diameter is smaller than the inner diameter of the teeth of the pole piece, a jumper housing groove is provided on the outer diameter side of the inner wall to store the connecting wire of the winding, and the inner wall is provided in the circumferential direction. The second insulating bobbin is provided with a slit through which the connecting wire passes, and a protrusion protruding toward the inner diameter side, and the second insulating bobbin has an outer wall and an inner wall whose inner diameter is larger than the teeth inner diameter of the pole piece. Winding wound around each tooth part of the pole piece The slits that are routed without being cut in the middle between the pole pieces, and that pass through the connecting wire in the circumferential direction provided on the inner wall of the first insulating bobbin, are two protrusions, and further protruded toward the inner diameter side Is a stator of a rotating electrical machine provided on both ends in the circumferential direction of two slits, an iron core holding jig having a rotation axis in the stacking direction of the magnetic pole pieces, and orthogonal to the rotation axis of the iron core holding jig A winding device provided with a winding supply winding flyer that turns around a rotating shaft arranged in a direction to supply the winding and uses the first and second two 1 A pair of magnetic pole pieces and a pair of third and fourth magnetic pole pieces. For the first and second magnetic pole pieces, circumferential end surfaces of the back yoke portions are adjacent to each other, and each tooth portion is V The third and fourth magnetic pole pieces are arranged in a letter shape, and the iron core with respect to the first and second magnetic pole pieces. A first step in which 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 holding jig, and the teeth portions are attached to each other in a V shape; A second step of winding the winding on the teeth portion of the first magnetic pole piece by the flyer, and the second magnetic pole piece is opposed to the flyer by rotating the iron core holding jig without cutting the winding; A third step of rotating the iron core holding jig without cutting the winding, and a third step of winding the winding on the teeth portion of the second pole piece by a flyer. A fifth step of securing a predetermined length of the connecting wire between the spaced apart teeth facing the flyer, a sixth step of winding the winding by the flyer around the teeth portion of the third magnetic pole piece, and cutting the winding The fourth magnetic pole by rotating the iron core holding jig without A seventh step in which the piece is opposed to the flyer, an eighth step in which the winding is wound around the teeth portion of the fourth magnetic pole piece by the flyer, and the wound unit cores are removed and two adjacent ones 1 A ninth step of deforming each magnetic pole piece of the set into an arc shape, a tenth step of arranging the four magnetic pole pieces that have undergone each step as a set, and arranging them in multiples of 3 to form an annular shape; An eleventh step in which the connecting wire between the spaced teeth is passed through the slit provided on the inner wall of the first insulating bobbin when assembling and arranged on the upper side or the lower side of the protrusion on the inner diameter side of the inner wall; And the twelfth step of arranging the connecting wire between the spaced teeth in the connecting wire storage groove provided on the outer diameter side of the inner wall of the first insulating bobbin. Work to move the jumper to the outer diameter side during work Eliminate workability is improved by, it is not necessary to add another component such as a stator terminals, it is possible to manufacture the stator of inexpensive rotary electric machine.

It is a perspective view of the unit core which concerns on the stator of the rotary electric machine of Embodiment 1 of this invention. It is sectional drawing of the stator of the rotary electric machine of Embodiment 1 of this invention. It is a connection diagram in a section of a stator of a rotary electric machine according to Embodiment 1 of the present invention. It is a connection schematic diagram of the stator of the rotary electric machine according to Embodiment 1 of the present invention. It is an external view of the 1st insulating bobbin which concerns on the stator of the rotary electric machine of Embodiment 1 of this invention. It is an external view of the 2nd insulating bobbin which concerns on the stator of the rotary electric machine of Embodiment 1 of this invention. It is sectional drawing of the unit core and insulation bobbin which concern on the stator of the rotary electric machine of Embodiment 1 of this invention. It is a schematic block diagram of the winding machine used when forming the stator of the rotary electric machine of Embodiment 1 of this invention. It is a figure explaining the crossover state in the process of forming the stator of the rotary electric machine of Embodiment 1 of this invention. It is a connecting wire state explanatory drawing of the process in which the stator of the rotary electric machine of Embodiment 1 of this invention is formed. It is a connecting wire state explanatory drawing of the process in which the stator of the rotary electric machine of Embodiment 1 of this invention is formed. It is a connecting wire state explanatory drawing of the process in which the stator of the rotary electric machine of Embodiment 1 of this invention is formed. It is explanatory drawing of the crossover state which concerns on the stator of the rotary electric machine of Embodiment 1 of this invention. It is the elements on larger scale of the crossover state which concern on the stator of the rotary electric machine of Embodiment 1 of this invention. It is the elements on larger scale of the crossover state which concern on the stator of the rotary electric machine of Embodiment 1 of this invention. It is the elements on larger scale of the crossover state which concern on the stator of the rotary electric machine of Embodiment 1 of this invention. It is a perspective view of the modification of the bobbin for insulation which concerns on the stator of the rotary electric machine of Embodiment 1 of this invention. It is an external view of the 1st insulating bobbin which concerns on the stator of the rotary electric machine of Embodiment 2 of this invention. It is an external view of the 1st insulating bobbin which concerns on the stator of the rotary electric machine of Embodiment 3 of this invention. It is a perspective view of the stator of the rotary electric machine of Embodiment 3 of this invention. It is a perspective view of the unit core which concerns on the stator of the rotary electric machine of Embodiment 4 of this invention. FIG. 10 is a layout diagram of unit cores according to a stator of a rotary electric machine according to Embodiment 4 of the present invention. It is a connection schematic diagram of the stator of the rotary electric machine of Embodiment 4 of this invention. It is a schematic block diagram of the winding machine used when forming the stator of the rotary electric machine of Embodiment 4 of this invention. It is a perspective view of the unit core which concerns on the stator of the rotary electric machine of Embodiment 5 of this invention. FIG. 10 is a layout diagram of unit cores according to a stator of a rotary electric machine according to Embodiment 5 of the present invention. It is a connection schematic diagram of the stator of the rotary electric machine of Embodiment 5 of this invention. It is a schematic block diagram of the winding machine used when forming the stator of the rotary electric machine of Embodiment 5 of this invention. It is a perspective view of the unit core which concerns on the stator of the rotary electric machine of Embodiment 6 of this invention. It is a layout of the unit core according to the stator of the rotating electrical machine of Embodiment 6 of the present invention. It is a connection schematic diagram of the stator of the rotary electric machine of Embodiment 6 of this invention. It is a schematic block diagram of the winding machine used when forming the stator of the rotary electric machine of Embodiment 6 of this invention.

Embodiment 1 FIG.
The first embodiment includes an insulating bobbin fitted to a magnetic pole piece constituting a unit core. The insulating bobbin has an outer wall and an inner wall, and a jumper wire that houses a jumper wire on the outer diameter side of the inner wall. There are three storage grooves, there are connecting wire holding projections on the inner diameter side, two slits are provided in the circumferential direction, and there are connecting wire storage grooves for storing the connecting wires on the outer diameter side of the outer wall. The present invention relates to a stator of a rotating electrical machine having a provided structure and a method for manufacturing the same.

1 is a perspective view of a unit core related to a stator of a rotating electrical machine, FIG. 2 is a cross-sectional view of the stator of the rotating electrical machine, and FIG. 2 is a stator of the rotating electrical machine. FIG. 3 is a connection diagram in a cross section of FIG. 3, FIG. 4 is a schematic connection diagram of a stator of a rotating electric machine, FIG. 5 is an external view of a first insulation bobbin, and FIG. 6 is an external view of a second insulation bobbin. FIG. 7 is a sectional view of the unit core and the insulating bobbin, FIG. 8 is a schematic configuration diagram of a winding machine used when forming the stator of the rotating electrical machine, and the crossover of the process of forming the stator of the rotating electrical machine Description will be made based on FIGS. 9 to 16 which are state explanatory diagrams and FIG. 17 which is a perspective view of a modification of the insulating bobbin.
In FIG. 4, the unit core is shown in a simplified manner, and windings and insulating bobbins wound around the teeth are omitted.

First, the unit core 2 of the stator 1 of the rotating electrical machine according to the first embodiment of the present invention will be described with reference to FIGS.
The stator 1 of the rotating electrical machine according to the first embodiment includes a plurality of (six in the first embodiment) unit cores 2. The unit core 2 is in the direction of the rotation output axis (perpendicular to the paper surface in FIG. 2). A pair of magnetic pole pieces 3 formed of a laminated core in which a plurality of thin plates are stacked along the direction) and fixed by caulking, welding, or the like.

In FIG. 1, each pole piece 3 has a back yoke portion 31 and a teeth portion 32 protruding from the back yoke portion 31, and each back yoke portion 31 will be described later when the stator 1 of the rotating electrical machine is manufactured. An attachment hole 34 for attaching the unit core 2 to the iron core holding jig 8 is provided. In addition, the magnetic pole pieces 3 are connected so that the back yoke portions 31 adjacent to each other can be bent via a thin wall 33.
Here, the thin wall 33 for connecting the magnetic pole pieces 3 to each other is formed by making a part of the back yoke portion 31 thin. However, the present invention is not limited to this, and the back yoke portions 31 of the magnetic pole pieces 3 are connected to each other. It can be set as the structure connected so that it could be bent and hingedly connected with the rotatable connection part. For example, it is also possible to make the shape formed so as to be rotatable by using caulking unevenness in the stacking direction.

  Further, a pair of first insulating bobbin 5 and a second insulating bobbin 6 (to be referred to collectively as an insulating bobbin hereinafter) are provided on the tooth portion 32 of each unit core 2 from the front and rear in the rotational output axis direction. Insulating bobbins 5 and 6) are fitted, and the winding 4 is continuously wound with two unit cores 2 fitted with the insulating bobbins 5 and 6 as one set. Accordingly, one set of two unit cores 2 corresponds to one phase of each of the phases U, V, and W of the three-phase alternating current.

  The two wound unit cores 2 are arranged opposite to each other in a point-symmetric position across the center O of the circle, and three sets of unit cores 2 are used along the circumferential direction. Are arranged in an annular shape by sequentially shifting by 60 degrees. In this way, the butted ends of the back yoke portions 31 of the unit cores 2 arranged in an annular shape are joined together by welding or bonding, whereby the stator 1 for a 10-pole 12-tooth three-phase DC brushless motor is configured. Is done.

2 to 4, the symbols U, V, and W attached to the magnetic pole pieces 3 of the unit cores 2 correspond to the phases of the three-phase alternating current, and N is the medium. It is a sex point.
The subscripts for each phase U, V, W are described to distinguish each winding 4 wound around each pole piece 3 of each unit core 2, and the difference between U1 and U1 ′ is Indicates that the winding direction is opposite to the left and right. For example, in FIG. 3, U1 is counterclockwise and U1 ′ is clockwise when viewed from the back yoke portion 31 side. The difference between U1 and U2 indicates that U1 is a winding wound around No. 1 of the unit core 2, and U2 is a winding wound around No. 2 of the unit core 2.

  In the first embodiment, as shown in FIG. 4, when winding 4 is continuously wound in the same phase, for each of the U, V, and W phases, a set of two unit cores 2 As a unit, the winding 4 is continuously wound via the connecting wire 44 connecting the magnetic pole pieces 3 connected to each other in the unit or the connecting wire 41 connecting the two unit cores 2. Good. Therefore, for example, the number of times of connection of the winding terminal portion by soldering can be reduced, and the inexpensive stator 1 of the rotating electrical machine can be provided.

Next, the insulating bobbins 5 and 6 of the stator 1 of the rotating electrical machine according to the first embodiment of the present invention will be described with reference to FIGS.
First, the first insulating bobbin 5 will be described.
FIG. 5A is a perspective view of the first insulating bobbin 5 as seen from the radially inner side of the stator 1 of the rotating electrical machine, and FIG. 5B is a diagram illustrating the fixing of the first insulating bobbin 5 to the rotating electrical machine. FIG. 5C is a plan view of the first insulating bobbin 5 viewed from the direction indicated by the arrow A in FIG. 5B, FIG. 5D. ) Is a side view of the first insulating bobbin 5 as seen from the direction of arrow B in FIG. 5B, and FIG. 5E is the side view of the first insulating bobbin 5 in the direction of arrow C in FIG. 5B. It is the rear view seen from.

The first insulating bobbin 5 includes an inner wall 50 on the inner diameter side, an outer wall 51 on the outer diameter side, and a winding frame 52 in a region sandwiched between the inner wall 50 and the outer wall 51. Windings are intensively wound around the part of the winding frame 52.
Further, the first insulating bobbin 5 has a tooth fitting portion 53 fitted to the tooth portion 32 of each magnetic pole piece 3 and a back yoke fitting portion 54 fitted to the back yoke portion 31.
The inner wall 50 has two slits 55 in the circumferential direction. Furthermore, the inner wall 50 is provided with three crossover storage grooves 56 on the outer diameter side (referred to as crossover storage grooves A1 to A3 from the side closer to the unit core 2) in a state of being displaced in the axial direction. Further, the inner wall 50 has a protrusion 57 protruding toward the inner diameter side on the inner diameter side. One protrusion 57 (referred to as a protrusion D) is provided between two slits, and two protrusions 57 are provided at both ends in the circumferential direction of the slit 55. Two of each of the circumferential ends of the slit 55 are provided with their positions shifted in the axial direction. Here, in order of increasing numbers starting from the side closer to the unit core 2, the left protrusion is referred to as C1 and C2, and the right protrusion is referred to as E1 and E2.
The crossover storage groove 56 is provided only between the slits 55.
Furthermore, the outer wall 51 is provided with two connecting wire storing grooves 58 (referred to as connecting wire storing grooves B1 and B2 from the side closer to the unit core 2) in a state of being displaced in the axial direction.
Further, the back yoke fitting portion 54 has a recess 59. The recess 59 is provided with a conductive plate 65 that is a conductive member for connecting the neutral points of the respective phases.
As can be seen from FIG. 7 which shows a cross section in a state where the first insulating bobbin 5 and the second insulating bobbin 6 are mounted on the unit core 2, the inner diameter of the inner wall 50 is larger than the inner diameter of the unit core 2. The dimensions are small.

Next, the second insulating bobbin 6 will be described.
FIG. 6A is a perspective view when the second insulating bobbin is viewed from the radially inner side of the stator, and FIG. 6B is a radially outer side of the second insulating bobbin of the stator. FIG. 6C is a plan view of the second insulating bobbin viewed from the direction indicated by arrow A in FIG. 6B, and FIG. 6D is the second insulating bobbin. FIG. 6B is a side view of the bobbin viewed from the direction of arrow B in FIG. 6B, and FIG. 6E is a rear view of the second insulating bobbin viewed from the direction of arrow C in FIG.
The second insulating bobbin 6 includes an inner wall 60 on the inner diameter side, an outer wall 61 on the outer diameter side, and a winding frame 62 in a region sandwiched between the inner wall 60 and the outer wall 61. Winding is intensively wound around the portion of the winding frame 62.
The second insulating bobbin 6 has a tooth fitting portion 63 fitted to the tooth portion 32 of each magnetic pole piece 3 and a back yoke fitting portion 64 fitted to the back yoke portion 31.
As can be seen from FIG. 7 which shows a cross section of the state where the insulating bobbins 5 and 6 are mounted on the unit core 2, the inner diameter dimension of the inner wall 60 of the second insulating bobbin 6 is larger than the inner diameter dimension of the unit core 2. ing.
The teeth fitting portions 53 and 63 of the first insulating bobbin 5 and the second insulating bobbin 6 are fitted to the teeth portion 32 of the unit core 2 from different positions in the axial direction end, and each of the insulating bobbins 5 and Windings are wound around the winding frames 52 and 62 of 6 using a winding machine 7 described below.

Next, a method of manufacturing a stator of a rotating electrical machine by winding a winding on the stator 1 of the rotating electrical machine having the above-described configuration will be described with reference to FIGS.
First, the winding machine 7 used for manufacturing the stator 1 of the rotating electrical machine will be described.
As shown in FIG. 8, which is a schematic configuration diagram of the winding machine 7, the winding machine 7 includes an iron core holding jig 8 for fixing the unit core 2 and a flyer 9.
The iron core holding jig 8 has a disk shape, and is provided with mounting pins 81 to be inserted into the mounting holes 34 provided in the magnetic pole pieces 3 along the circumferential direction thereof. Rotation is possible as the center. The iron core holding jig 8 includes a winding start wire fixing pin 82 and a crossover hooking portion 83.
The flyer 9 is for winding the winding 4 around the tooth portion 32 of each pole piece 3 of the unit core 2. The flyer 9 has an arm portion 92 attached to the shaft end of the rotation shaft 91 around the rotation shaft 91 of the flyer 9, and can be rotated in the forward and reverse directions as indicated by arrows θ. For this purpose, the rotary shaft 91 is configured to slide in the axial direction (reference Z direction) in synchronization with the rotation operation. The supplied winding 4 is connected from the proximal end side of the arm portion 92 of the flyer 9 to the distal end portion through the inside of the arm portion 92.
In FIG. 8, together with the configuration of the winding machine 7, two sets of unit cores 2 corresponding to one phase of three-phase alternating current (here, W phase as an example) are fixed iron cores for fixing the unit core 2. The state fixed to the holding jig 8 is also shown.

Next, a method of winding the winding 4 on each unit core 2 using the winding machine 7 will be sequentially described.
FIG. 10A illustrates a state in which the winding 4 is continuously wound around a set of two unit cores 2 corresponding to two phases of three-phase alternating current (here, V phase as an example). FIG. 10B is a diagram illustrating a state in which the winding 4 is continuously wound around one set of two unit cores 2 corresponding to one phase of three-phase alternating current (here, W phase as an example). FIG. Here, the portion of the winding 4 wound around each tooth portion 32 is omitted.
In the case of the U phase and the W phase, the direction in which the winding 4 is wound and the positions of the winding start portion and the winding end portion are reversed from those in the V phase. Contrary to the case shown in the figure, a rotating electrical machine having 10 poles and 12 teeth can be configured even if FIG. 10A is a U-phase, W-phase, and FIG. 10B is a V-phase.

Next, based on FIG. 8 to FIG. 10, each tooth of two sets of unit cores 2 constituting one phase (here, W phase is taken as an example) to manufacture the stator 1 of the rotating electrical machine. Each step of the method of winding the winding 4 around the part 32 will be specifically described. In the following description, the unit cores and their pole pieces are assigned with different symbols so that they can be distinguished for convenience. In the following description, the first magnetic pole piece corresponds to 3a, the second magnetic pole piece 3b, the third magnetic pole piece 3c, and the fourth magnetic pole piece 3d.
The first step will be described. For each of the two unit cores 2a and 2b, the thin wall 33 is bent so that the teeth portion 32 is located outside, and the distance between the adjacent magnetic pole pieces 3a and 3b is widened by reversing in a V shape. A mounting hole 34 provided in the back yoke portion 31 of each of the magnetic pole pieces 3a, 3b, 3c, and 3d is inserted and fixed to the mounting pin 81 of the holding jig 8 (see FIG. 8). At this time, the unit cores 2a and 2b are arranged so as to be substantially point-symmetrical with respect to the center O of the iron core holding jig 8, and do not interfere with the magnetic pole piece 3 that is not wound by the flyer 9. Like that. Then, the iron core holding jig 8 is rotated to first move one magnetic pole piece 3a to the front position of the flyer 9 (see FIG. 8).

  Next, the second step will be described. After fixing the terminal portion of the winding 4 protruding from the tip of the arm portion 92 of the flyer 9 to the winding start wire fixing pin 82 installed in the iron core holding jig 8, the winding 4 is moved to the winding frame 52. Then, the flyer 9 is rotated (here, rotated counterclockwise as viewed from the back yoke portion 31 side), and the magnetic shaft is slid in the axial direction (Z direction) in synchronization with the flyer 9. The winding 4 is wound around the teeth portion 32 of the piece 3a.

Next, the third step will be described. The iron core holding jig 8 is rotated, and the other magnetic pole piece 3b is moved to the front position of the flyer 9 (the position where the magnetic pole piece 3a in FIG. At this time, the winding end of the winding 4 wound around one of the magnetic pole pieces 3a constituting the unit core 2a is not cut, and this is used as a connecting wire 44 to store the connecting wire of the first insulating bobbin 5. The winding 4 is moved to the winding frame 52 by being housed along the groove B2.
Next, the fourth step will be described. The winding 4 is wound in a direction opposite to the direction wound around the one magnetic pole piece 3a with respect to the tooth part 32 of the other magnetic pole piece 3b (in this example, clockwise when viewed from the back yoke part 31 side).

  Next, the fifth step will be described. The iron core holding jig 8 is rotated, and the magnetic pole piece 3c is moved to the front position of the flyer 9 (the position where the magnetic pole piece 3a in FIG. At this time, after being housed along the crossover housing groove B2 of the first insulating bobbin 5 without cutting the winding end portion of the winding 4 wound around the other magnetic pole piece 3b, the other unit core 2b A predetermined length as long as a crossover line 41 is secured.

  Next, the sixth step will be described. The winding 4 is moved to the winding frame 52 with respect to the one magnetic pole piece 3c constituting the other unit core 2b, and the winding 4 is rotated in the same direction as the magnetic pole piece 3b (clockwise as viewed from the back yoke portion 31 side). Wrap. At this time, the crossover 41 secures a predetermined length along the crossover hooking portion.

  Next, the seventh step will be described. The iron core holding jig 8 is rotated, and the other magnetic pole piece 3d is moved to the front position of the flyer 9 (the position where the magnetic pole piece 3a in FIG. At this time, the winding end portion of the winding 4 wound around one magnetic pole piece 3c constituting the unit core 2b is housed along the crossover housing groove B2 of the first insulating bobbin 5 without cutting. Let After that, this is used as a connecting wire 44 and moved through the connecting wire housing groove B2 of the first insulating bobbin 5 to the reel 52 of the first insulating bobbin 5 of the other magnetic pole piece 3d.

  Next, the eighth step will be described. The winding 4 is wound around the tooth portion 32 of the other magnetic pole piece 3d in a direction opposite to the direction wound around the one magnetic pole piece 3c (in this example, counterclockwise when viewed from the back yoke portion 31 side).

  Next, the ninth step will be described. The unit cores 2a and 2b in which the windings 4 are wound around the tooth portions 32 of the magnetic pole pieces 3a, 3b, 3c, and 3d of the set of two unit cores 2a and 2b are removed from the iron core holding jig 8, and FIG. As shown to 10 (a), the teeth part 32 is deform | transformed from a V-shaped reverse curvature state so that both may become circular arc shape. As a result, a set of two unit cores 2 in which the winding 4 is continuously wound around the set of two unit cores 2a and 2b corresponding to the W phase are obtained.

  Next, the tenth step will be described. Similarly, windings 4 are wound around a set of two unit cores 2 corresponding to the U phase and the V phase, and three sets of these two unit cores 2 are used, As shown in FIG. 2, the sets are sequentially shifted by 60 degrees along the circumferential direction to form an annular shape. And the mutually adjacent end surfaces of each unit core 2 are couple | bonded by welding, adhesion | attachment, etc.

  Next, the eleventh step will be described. Although it is a parallel operation with the tenth step, when assembling the three unit cores 2 in a ring shape, the connecting wire 41 between the spaced teeth is passed through the slit 55 provided on the inner wall 50 of the first insulating bobbin 5. , It is arranged on the upper or lower side in the axial direction of the protrusion 57 on the inner diameter side.

  Next, the twelfth process will be described. After each unit core is annularly assembled, the connecting wire 41 between the spaced teeth portions is arranged in the connecting wire storage grooves A1 to A3 provided on the outer diameter side of the inner wall 50 of the first insulating bobbin 5.

  Next, the thirteenth process will be described. Crossover storage grooves provided on the outer wall 51 of the first insulating bobbin 5 so that the winding end lines of the U-phase, V-phase, and W-phase magnetic pole pieces 3d are in the connection state shown in FIGS. 58 (B1, B2) is housed with the winding terminal portion, and the neutral point is connected. Further, the neutral point is connected to a conductive plate 65 described later.

Furthermore, the detail of the point which accommodates the crossover wires 41 and 44 in the crossover storage grooves 56 and 58 is demonstrated.
11 and 12 are diagrams more specifically showing the arrangement method of the crossover lines 41 and 44 between the unit cores.
11 is a plan view showing a state before the connecting wire 41 is arranged in the connecting wire storage grooves 56, 58, and FIG. 12 is a plan view showing a state after the connecting wire 41 is arranged in the connecting wire storage grooves 56, 58. is there.
In FIG. 12, the crossover lines 41 and 44 arranged in the crossover storage grooves 56 and 58 are not actually visible when viewed from above, but in order to clarify the arrangement of the crossover lines. The invisible part is also described.

Next, the procedure for storing or processing the crossover wires 41 and 44 in the slit 55, the crossover storage grooves 56 and 58, and the protrusions 57 will be described with reference to FIGS.
14 to 16 are enlarged views of portions A to C in FIG.
FIG. 13 is a crossover arrangement schematic diagram schematically showing the arrangement of the crossover lines 41 and 44 that are terminal lines by arranging all unit cores constituting the stator 1 of the rotating electrical machine in a straight line. In FIG. 13 to FIG. 16, the unit core 2 is simplified and the windings wound around the tooth portion 32 and the insulating bobbins 5 and 6 are omitted.

First, the arrangement of the U-phase crossover wire 41 will be described.
The arrangement of the U-phase crossover 41 is such that the winding end line of U1 ′ is routed from the outside to the inside, and then pulled out to the inner diameter side of the unit core 2 as it passes through the slit 55, and the axis of the protrusion 57 (D) of U1 ′ The lower side in the direction, the lower side in the axial direction of the protrusion 57 (E1) of U1 ′, and the lower side in the axial direction of the protrusion 57 (C1) of V1 ′ are passed. Thereafter, the slit 55 on the side near V1 ′ and U1 ′ is passed through and stored in the crossover storage groove 56 (A1).
Next, the crossover 41 is moved to W1 ′ in the circumferential direction while the crossover 41 is placed in the crossover storage groove 56 (A1), and passes through the slit 55 on the side near W2 ′ of W1 ′ to pass the unit core. Pull out to the inner diameter side of 2. Next, it moves to U2 ′ while being arranged on the lower side in the axial direction of the protrusion 57 (E1) of W1 ′ and the lower side in the axial direction of the protrusion 57 (C1) of U2 ′. The crossover wire 41 is passed through the slit 55 on the side close to W1 ′ of U2 ′ to the outer diameter side of the unit core 2 and drawn from the outside to the inside.

Next, the arrangement of the V-phase crossover wires 41 will be described.
The arrangement of the V-phase connecting wire 41 is such that the winding end line of V1 is routed from the outside to the inside, and passes through the slit 55 as it is, and is once drawn to the inner diameter side of the unit core 2, and the upper side in the axial direction of the projection D of V1 and the V1 After passing between the protrusion E1 and the protrusion E2 and between the protrusion C1 and the protrusion C2 of V1, the slit 55 on the side close to W1 of V1 is passed through and stored in the crossover storage groove A2. Next, the crossover wire 41 is moved in the circumferential direction to U2 while the crossover wire 41 is placed in the crossover storage groove A2, and is pulled out to the inner diameter side of the unit core 2 through the slit 55 on the side close to V2 of U2. It moves to V2 while being placed between E1 and E2 of U2 and between C1 and C2 of V2. It passes through the slit 55 on the side close to U2 of V2, passes through the connecting wire 41 to the outer diameter side of the unit core 2, and is arranged so as to be routed from the outside to the inside.

Next, the arrangement of the W-phase crossover wires 41 will be described.
The W-phase connecting wire 41 is arranged such that the winding end line of W1 ′ is routed from the outside to the inside, and then pulled out to the inner diameter side of the unit core 2 as it passes through the slit 55, and the upper side in the axial direction of the protrusion D of W1 ′. After passing through the axially upper side of the protrusion E2 of W1 ′ and the axially upper side of C2 of U2 ′, it passes through the slit 55 on the side close to W1 ′ of U2 ′ and is stored in the crossover storage groove A3. Next, the crossover wire 41 is moved to V2 ′ in the circumferential direction while the crossover wire 41 is arranged in the crossover storage groove A3, passes through the slit 55 on the side near V2 ′ of V2 ′, and the inner diameter side of the unit core 2 And move to W2 ′ while being arranged on the upper side in the axial direction of E2 of V2 ′ and the upper side in the axial direction of C2 of W2 ′. It passes through the slit 55 on the side close to V2 ′ of W2 ′, passes the crossover wire 41 to the outer diameter side of the unit core 2, and is arranged so as to be routed from the outside to the inside.

  By arranging the connecting wires 41 and 44 as described above, interference between connecting wires arranged on the inner diameter side of the insulating bobbins 5 and 6 of each phase can be prevented (particularly, point A in FIG. B point, C point).

In the first embodiment, a neutral point which is the same potential point by drawing out the winding end line of each phase to V2 ′ and connecting it to the conductive plate 65 attached to the recess 59 of the first insulating bobbin of V2 ′. Is configured. As a method of connecting the winding end line of each phase to the conductive plate 65, there are soldering and fusing.
At this time, the winding end line of each phase is arranged in a place where there is no other crossover line in the crossover storage groove 58 (B1, B2). By arranging the connecting wires in this way, it is possible to prevent the connecting wires 44 between adjacent teeth from coming into contact with the winding end wires of each phase. That is, since the connecting wire 41 that crosses between the spaced teeth crosses the inner diameter side, the connecting wire 44 is far away from the connecting wire 44 and a large insulation distance can be obtained.
In addition, the winding end line of each phase constituting the neutral point and the connecting wires 41 and 44 can be arranged at positions separated in the axial direction (positioned so as not to interfere with B1 and B2). Can be prevented.

As a result, a stator for a three-phase DC brushless motor having 10 poles and 12 teeth is manufactured.
As described above, in the stator 1 of the rotating electric machine according to the first embodiment, for example, when performing serial star connection with 10 poles and 12 teeth, as shown in FIG. Since the unit core 2 wound for one phase is obtained by continuously winding without cutting through the connecting wire 41, the number of connection of the winding terminal portion is reduced as compared with the conventional case. The working time can be improved.
Further, since it is not necessary to add another part such as a stator terminal, an inexpensive stator of a rotating electrical machine can be provided with a simple configuration.

Further, the first insulating bobbin 5 is provided with connecting wire storage grooves 56 and 58 and protrusions 57 for storing the connecting wire 41 that crosses the spaced apart tooth portions 32 and the connecting wire 44 that crosses the adjacent tooth portions 32. For this reason, the terminal portion of the winding 4 can be more easily fixed, contact between the phases having a large potential difference can be avoided, and insulation failure can be prevented.
Further, the size of the inner wall 50 of the first insulating bobbin 5 is made smaller than the inner diameter of the unit core, so that the space for winding the winding is reduced even when the crossover storage groove 56 is provided on the outer diameter side of the inner wall 50. There is no problem of becoming.

As the winding machine 7, an iron core holding jig 8 for positioning each magnetic pole piece 3 and a flyer 9 for winding the supply of the winding 4 are applied. The magnetic pole piece 3 attached to 8 can be sequentially moved to a position facing the flyer 9 simply by rotating. Then, after the magnetic pole piece 3 has moved to a predetermined position, the winding 4 can be wound by rotating the flyer 9 while keeping the position of the magnetic pole piece 3 fixed.
That is, since the iron core holding jig 8 and the flyer 9 are separated and independent, the configuration of the apparatus is more than that in the case where the movement of the magnetic pole piece 3 to the conductor supply side and the winding of the conductor are simultaneously incorporated in one apparatus. Simplified and less troublesome, and the winding machine can be manufactured at low cost.

In addition, the winding 4 is wound by rotating the flyer 9, and the pole piece 3 itself does not rotate at high speed. There is no inconvenience such as deterioration in the alignment of the lines 4, and therefore the working time is shortened and the productivity can be improved.

Further, when attaching a set of two magnetic pole pieces 3 to the iron core holding jig 8 as compared with the case where the number of the magnetic pole pieces 3 fixed to the iron core holding jig 8 is large, these magnetic pole pieces 3 are formed in a V shape. Each pole piece 3 can be made to oppose the flyer 9 only by rotating the iron core holding jig 8 after mounting at a desired interval. Then, it is possible to eliminate the occurrence of problems such as the angle between the adjacent magnetic pole pieces 3 becoming narrow and obstructing the winding 4 winding, or the length of the connecting wire 44 cannot be set freely. Moreover, in the first embodiment, when the pair of magnetic pole pieces 3 is deformed from the V-shaped state into the arc shape, the change in the distance of the starting point of the connecting wire 44 connecting the adjacent magnetic pole pieces 3 is small. Therefore, even if the crossover wire 44 is fixed in the crossover storage groove 58 of the first insulating bobbin 5, the crossover wire 44 is too short or too long when the magnetic pole piece 3 is deformed in an arc shape. Therefore, there is no problem that the insulation swells due to swelling on the outer diameter side and interference with wiring components.

  Further, when the stator 1 of a rotating electrical machine is configured, a set of two magnetic pole pieces 3 is often arranged in an annular shape by alternately arranging each phase along the circumferential direction. In that case, although the distance of the connecting wire 41 which connects between each pair of two magnetic pole pieces 3 becomes long, each magnetic pole piece 3 is provided at the place where the winding operation is performed sequentially only by rotating the iron core holding jig 8. Therefore, the length of the crossover 41 can be freely set. Furthermore, when winding the winding, interference between the adjacent pole piece 3 and the flyer 9 can be avoided, and the alignment of the winding 4 can be improved. In addition, since it is possible to apply crossovers to the pole pieces 3 existing at spaced positions, productivity can be improved.

  Further, the connecting wire 41 extending over the teeth 32 separated when the magnetic pole piece 3 is integrated can be arranged on the inner diameter side, and can be arranged in the connecting wire storage groove 56 provided on the outer diameter side of the inner wall 50. Therefore, the work of moving the crossover wire 41 to the outer diameter side can be eliminated. In other words, before and after the unit core 2 integration work, there is no step of moving the arrangement position of the crossover wire 41 from the inner diameter side to the outer diameter side (a position far away), and workability is improved.

In the first embodiment, the case where the winding is continuously applied to the set of two unit cores 2 has been described. However, the present invention is not limited to such a configuration. Absent. For example, when individually winding the unit core 2 composed of a pair of magnetic pole pieces 3 or when individually winding the magnetic pole pieces 3 when the magnetic pole pieces 3 are individually separated. Furthermore, the present invention can also be applied to a case where winding is continuously performed over each magnetic pole piece 3 in the case where a large number of the magnetic pole pieces 3 are continuously formed in an annular shape.
Further, the present invention is not limited to a 10-pole 12-tooth rotating electric machine, and can be applied to a case where a tooth portion in the same phase is taken out and continuously wound around an adjacent tooth portion and a spaced tooth portion.
Further, in the first embodiment, in order to further stabilize the neutral point, the connection of the neutral point of the winding end line of each U phase, V phase, and W phase is performed and connected to the conductive plate. It can also be set as the structure which does not provide.

Next, a modified example of the insulating bobbins 5 and 6 will be described with reference to FIG.
FIG. 17 is a perspective view showing a state in which the third insulating bobbin 25 is integrally formed with the unit core 2 of the first embodiment. In the first embodiment, the first insulating bobbin and the second insulating bobbin are fitted to the unit core as separate parts. However, as shown in FIG. 17, the unit core 2 and the insulating bobbin 25 are formed by molding. It can also be integrated. In this case, the third insulating bobbin 25 integral with the unit core 2 has a shape in which the first insulating bobbin 5 and the second insulating bobbin 6 are combined. In this way, the number of parts can be reduced.

  As described above, the stator of the rotating electrical machine according to the first embodiment includes the insulating bobbin fitted to the magnetic pole piece constituting the unit core, and the insulating bobbin has the outer wall and the inner wall, and the inner wall Three crossover grooves are provided on the outer diameter side of the wire, and there are provided crossover holding projections on the inner diameter side, two slits are provided in the circumferential direction, and a crossover is provided on the outer wall. Since the crossover storage groove for storing the wire is provided, workability is eliminated by eliminating the work of moving the crossover wire to the outer diameter side during the crossover placement work after the core is integrated. Thus, there is no need to add another part such as a stator terminal, and there is an effect that an inexpensive stator for a rotating electrical machine can be provided.

  In addition, the method for manufacturing a stator for a rotating electrical machine according to the first embodiment includes an insulating bobbin that is fitted to a magnetic pole piece constituting a unit core. The insulating bobbin has an outer wall and an inner wall. There are three crossover grooves for storing the crossovers on the outer diameter side, crossover holding projections on the inner diameter side, two slits in the circumferential direction, and crossovers on the outer wall. A winding machine composed of an iron core holding jig and a flyer is used as a stator of a rotating electrical machine having a crossover storage groove for storing a wire, and winding is performed on a pole piece of each unit core according to a predetermined process. By winding the wire, the workability is improved by eliminating the work of moving the crossover wire to the outer diameter side during the crossover placement work after the core is integrated, and it is necessary to add another part such as a stator terminal. To manufacture inexpensive, inexpensive stators for rotating electrical machines The ability.

Embodiment 2. FIG.
The second embodiment includes an insulating bobbin fitted to a magnetic pole piece constituting the unit core. The insulating bobbin has an outer wall and an inner wall, and a jumper wire that houses a jumper wire on the outer diameter side of the inner wall. The present invention relates to a stator for a rotating electrical machine having three storage grooves, a jumper for holding a crossover on the inner diameter side, and two slits in the circumferential direction, and a method for manufacturing the same. .
The difference from the stator of the rotating electrical machine according to the first embodiment is that the outer wall of the stator of the rotating electrical machine according to the second embodiment is not provided with a connecting wire storing groove for storing the connecting wire.

Hereinafter, regarding the configuration and function of the second embodiment of the present invention, the stator of the rotating electrical machine according to the first embodiment will be described with reference to FIG. 18 which is an external view of the first insulating bobbin according to the stator of the rotating electrical machine. The difference will be mainly described.
Note that the second insulating bobbin relating to the unit core and the stator of the rotating electrical machine is the same as that of the first embodiment, and thus the description thereof is omitted.
In the following description, the same reference numerals are given to the same or corresponding parts as those in the first embodiment. For example, the stator 1 of the rotating electrical machine will be described with the same reference numerals as those in the first embodiment.

The first insulating bobbin 205 will be described.
18A is a perspective view of the first insulating bobbin 205 as viewed from the radially inner side of the stator 1 of the rotating electrical machine, and FIG. 18B is a diagram illustrating the fixing of the first insulating bobbin 205 to the rotating electrical machine. FIG. 18C is a plan view of the first insulating bobbin 205 viewed from the direction indicated by the arrow A in FIG. 18B, FIG. 18D. ) Is a side view of the first insulating bobbin 205 seen from the direction of arrow B in FIG. 18B, and FIG. 18E shows the first insulating bobbin 205 in the direction of arrow C in FIG. 18B. It is the rear view seen from.

The first insulating bobbin 205 includes an inner wall 250 on the inner diameter side, an outer wall 251 on the outer diameter side, and a winding frame 252 in a region sandwiched between the inner wall 250 and the outer wall 251. Winding is intensively wound around the part of the winding frame 252.
Further, the first insulating bobbin 205 has a teeth fitting portion 253 fitted to the teeth portion 32 of each magnetic pole piece 3 and a back yoke fitting portion 254 fitted to the back yoke portion 31.
The inner wall 250 has two slits 255 in the circumferential direction. Furthermore, the inner wall 250 is provided with three crossover storage grooves 256 on the outer diameter side (referred to as crossover storage grooves A1 to A3 from the side closer to the unit core 2) in a state of being displaced in the axial direction. Further, the inner wall 250 has a protrusion 257 that protrudes toward the inner diameter side on the inner diameter side. One protrusion 257 (referred to as a protrusion D) is provided between two slits, and two protrusions 257 are provided at both ends in the circumferential direction of the slit 255. Two of each of the circumferential ends of the slit 255 are provided with their positions shifted in the axial direction. Here, in order of increasing numbers starting from the side closer to the unit core 2, the left protrusion is referred to as C1 and C2, and the right protrusion is referred to as E1 and E2.
The crossover storage groove 256 is provided only between the slits 55.
Further, the back yoke fitting portion 254 has a recess 259.
Further, a rotor escape portion 262 is provided on the inner diameter side of the inner wall 250.
The inner diameter 250 of the inner wall 250 of the first insulating bobbin 205 is smaller than the inner diameter of the unit core 2 as in the first embodiment.

  The reason why the rotor escape portion 262 is provided on the inner diameter side of the inner wall 250 is that, in the second embodiment, a rotating electrical machine in which the axial length of the rotor is longer than the axial length of the stator is assumed. Because it is.

Next, a method for manufacturing a stator of a rotating electrical machine by winding a winding around the stator 1 of the rotating electrical machine having the configuration using the first insulating bobbin 205 described above will be described.
Since the winding machine 7 used for manufacturing the stator of the rotating electrical machine is the same as that of the first embodiment, the description thereof is omitted.
In the stator of the rotating electrical machine according to the second embodiment, since the outer wall 251 is not provided with a connecting wire storage groove for storing the connecting wire, the process of the connecting wire is performed in the manufacturing process of the stator of the rotating electrical machine according to the first embodiment. Is a little different. The manufacturing process of the W phase of the stator of the rotating electric machine according to the second embodiment will be sequentially described.

  The first step will be described. For each of the two unit cores 2a and 2b, the thin wall 33 is bent so that the teeth portion 32 is located outside, and the distance between the adjacent magnetic pole pieces 3a and 3b is widened by reversing in a V shape. Mounting holes 34 provided in the back yoke portions 31 of the magnetic pole pieces 3a, 3b, 3c, and 3d are inserted into the mounting pins 81 of the holding jig 8 and fixed. At this time, the unit cores 2a and 2b are arranged so as to be substantially point-symmetrical with respect to the center O of the iron core holding jig 8, and do not interfere with the magnetic pole piece 3 that is not wound by the flyer 9. Like that. Then, the iron core holding jig 8 is rotated to first move one magnetic pole piece 3 a to the front position of the flyer 9.

  Next, the second step will be described. After fixing the terminal portion of the winding 4 protruding from the tip of the arm portion 92 of the flyer 9 to the winding start wire fixing pin 82 installed in the iron core holding jig 8, the winding 4 is moved to the winding frame 52. Then, the flyer 9 is rotated (here, rotated counterclockwise as viewed from the back yoke portion 31 side), and the magnetic shaft is slid in the axial direction (Z direction) in synchronization with the flyer 9. The winding 4 is wound around the teeth portion 32 of the piece 3a.

  Next, the third step will be described. The iron core holding jig 8 is rotated, and the other magnetic pole piece 3 b is moved to the front position of the flyer 9. At this time, the winding end portion of the winding 4 wound around one of the magnetic pole pieces 3a constituting the unit core 2a is not cut, and this is used as a connecting wire 44 on the outer wall 251 of the first insulating bobbin 205. Accordingly, the winding 4 is moved to the winding frame 52.

  Next, the fourth step will be described. The winding 4 is wound in a direction opposite to the direction wound around the one magnetic pole piece 3a with respect to the tooth part 32 of the other magnetic pole piece 3b (in this example, clockwise when viewed from the back yoke part 31 side).

  Next, the fifth step will be described. The iron core holding jig 8 is rotated to move the magnetic pole piece 3 c to the front position of the flyer 9. At this time, a predetermined length enough to reach the other unit core 2b along the outer wall 251 of the first bobbin 205 for insulation without cutting the winding end portion of the winding 4 wound around the other magnetic pole piece 3b. The crossing is secured as a crossover line 41.

  Next, the sixth step will be described. The winding 4 is moved to the winding frame 52 with respect to the one magnetic pole piece 3c constituting the other unit core 2b, and the winding 4 is rotated in the same direction as the magnetic pole piece 3b (clockwise as viewed from the back yoke portion 31 side). Wrap. At this time, the crossover 41 secures a predetermined length along the crossover hooking portion.

  Next, the seventh step will be described. The iron core holding jig 8 is rotated, and the other magnetic pole piece 3 d is moved to the front position of the flyer 9. At this time, the winding end portion 44 of the winding 4 wound around one magnetic pole piece 3c constituting the unit core 2b is cut along the outer wall 251 of the first insulating bobbin 205 without cutting the other end 44. The pole piece 3d is moved to the winding frame 252 of the first insulating bobbin 205.

  Next, the eighth step will be described. The winding 4 is wound around the tooth portion 32 of the other magnetic pole piece 3d in a direction opposite to the direction wound around the one magnetic pole piece 3c (in this example, counterclockwise when viewed from the back yoke portion 31 side).

  Next, the ninth step will be described. Each unit core 2a, 2b in which the winding 4 is wound around the teeth 32 of each of the magnetic pole pieces 3a, 3b, 3c, 3d of the set of two unit cores 2a, 2b is removed from the iron core holding jig 8, and the teeth The portion 32 is deformed from a V-shaped reverse warping state so that both are arcuate. As a result, a set of two unit cores 2 in which the winding 4 is continuously wound around the set of two unit cores 2a and 2b corresponding to the W phase are obtained.

  Next, the tenth step will be described. Similarly, windings 4 are wound around a set of two unit cores 2 corresponding to the U phase and the V phase, and three sets of these two unit cores 2 are used, The sets are shifted by 60 degrees sequentially along the circumferential direction to form an annular shape. And the mutually adjacent end surfaces of each unit core 2 are couple | bonded by welding, adhesion | attachment, etc.

  Next, the eleventh step will be described. Although it is a parallel operation with the tenth step, when assembling the three unit cores 2 in an annular shape, the connecting wire 41 between the spaced teeth is passed through the slit 255 provided on the inner wall 250 of the first insulating bobbin 205. , It is arranged on the upper or lower side in the axial direction of the protrusion 257 on the inner diameter side.

  Next, the twelfth process will be described. After each unit core is annularly assembled, the connecting wire 41 between the spaced teeth is arranged in the connecting wire housing grooves A1 to A3 provided on the outer diameter side of the inner wall 250 of the first insulating bobbin 205.

  Next, the thirteenth process will be described. A neutral point connection process is performed along the winding end line of each U-phase, V-phase, and W-phase pole piece 3 d along the outer wall 251 of the first insulating bobbin 205. Further, the neutral point is connected to the conductive plate.

  As described above, the stator of the rotating electrical machine according to the second embodiment includes the insulating bobbin fitted to the magnetic pole piece constituting the unit core, and this insulating bobbin has the outer wall and the inner wall, and the inner wall The outer diameter side is provided with three connecting wire storing grooves for storing the connecting wire, the inner diameter side is provided with connecting wire holding projections, and further provided with two slits in the circumferential direction. Therefore, the workability is improved by eliminating the work of moving the crossover wire to the outer diameter side during the crossover placement work after the core is integrated, and there is no need to add another part such as a stator terminal. There is an effect that an inexpensive stator for a rotating electrical machine can be provided.

  In addition, the method for manufacturing a stator of a rotating electrical machine according to the second embodiment includes an insulating bobbin that is fitted to a magnetic pole piece that forms a unit core. The insulating bobbin has an outer wall and an inner wall. A rotating electrical machine having a configuration in which three connecting wire storing grooves for storing a connecting wire are provided on the outer diameter side, a connecting wire holding projection is provided on the inner diameter side, and two slits are provided in the circumferential direction. Using a winding machine consisting of an iron core holding jig and a flyer on the stator of the core, winding the winding around the magnetic pole piece of each unit core according to a predetermined process, so that crossover arrangement work after core integration The workability is improved by eliminating the work of moving the crossover wire to the outer diameter side at the time, and it is possible to manufacture an inexpensive stator for a rotating electrical machine that does not require additional parts such as a stator terminal. Become.

Embodiment 3 FIG.
The third embodiment includes an insulating bobbin fitted to a magnetic pole piece constituting the unit core, and this insulating bobbin has an outer wall and an inner wall, and the connecting wire for storing the connecting wire on the outer diameter side of the inner wall. Three storage grooves are provided, a connecting wire holding projection is provided on the inner diameter side, two slits are provided in the circumferential direction, and a connecting wire storage groove is provided on the outer wall to store the connecting wire. The present invention relates to a stator for a rotating electric machine having a configuration in which an inner diameter extension is provided on the inner diameter side of an inner wall.
The difference from the stator of the rotating electrical machine of the first embodiment is that an inner diameter extension is provided on the inner diameter side of the inner wall.

Hereinafter, with respect to the configuration and function of the third embodiment of the present invention, based on FIG. 19 which is an outline view of a first insulating bobbin relating to the stator of the rotating electrical machine and FIG. 20 which is a perspective view of the stator of the rotating electrical machine. Now, the description will focus on the difference from the stator of the rotating electrical machine according to the first embodiment.
Note that the second insulating bobbin relating to the unit core and the stator of the rotating electrical machine is the same as that of the first embodiment, and thus the description thereof is omitted.
In the following description, the same or corresponding parts as those in the first embodiment are denoted by the same reference numerals.

First, the first insulating bobbin 305 will be described.
FIG. 19A is a perspective view of the first insulating bobbin 305 as seen from the radially inner side of the stator 1 of the rotating electrical machine, and FIG. 19B is an illustration of fixing the first insulating bobbin 305 to the rotating electrical machine. FIG. 19C is a plan view of the first insulating bobbin 5 viewed from the direction indicated by the arrow A in FIG. 19B, FIG. 19D. ) Is a side view of the first insulating bobbin 305 as seen from the direction of arrow B in FIG. 19B, and FIG. 19E is the side view of the first insulating bobbin 305 in the direction of arrow C in FIG. 19B. It is the rear view seen from.

The first insulating bobbin 305 includes an inner wall 350 on the inner diameter side, an outer wall 351 on the outer diameter side, and a winding frame 352 in a region sandwiched between the inner wall 350 and the outer wall 351. Winding is intensively wound around the part of the winding frame 352.
Further, the first insulating bobbin 305 has a tooth fitting portion 353 fitted to the tooth portion 32 of each magnetic pole piece 3 and a back yoke fitting portion 354 fitted to the back yoke portion 31.
The inner wall 350 has two slits 355 in the circumferential direction. Furthermore, the inner wall 350 is provided with three crossover storage grooves 356 on the outer diameter side (referred to as crossover storage grooves A1 to A3 from the side closer to the unit core 2) in a state of being displaced in the axial direction. In addition, the inner wall 350 has a protrusion 357 protruding toward the inner diameter side on the inner diameter side. One protrusion 357 is provided between the two slits (referred to as protrusion D), and two protrusions 357 are provided at both ends of the slit 355 in the circumferential direction. Two of each of the circumferential ends of the slit 355 are provided with their positions shifted in the axial direction. Here, in order of increasing numbers starting from the side closer to the unit core 2, the left protrusion is referred to as C1 and C2, and the right protrusion is referred to as E1 and E2.
The crossover storage groove 356 is provided only between the slits 355.
Further, the back yoke fitting portion 354 has a recess 359.

  Further, an inner diameter extension portion 360 is provided on the inner diameter side of the inner wall 360 of the first insulating bobbin 305, and a cylinder 361 is provided in the axial direction on the inner diameter extension portion.

  As described above, the first insulating bobbin 5 of the first embodiment is the same as the first insulating bobbin 5 except that the inner diameter extension 360 and the cylinder 361 are provided. The inner diameter extension portion 360 is provided at the lower end of the inner wall 350 in the axial direction. When the inner diameter extension portion 360 is fitted to the tooth portion 32, the inner diameter extension portion 360 is axially disposed on the lower side surface in the axial direction and the tooth portion 32. The structure is such that a gap is generated.

  FIG. 20 is a perspective view showing a state in which all unit cores constituting the stator of the rotating electrical machine are integrated. Here, the substrate 363 is installed on the inner diameter extension 360 of the first insulating bobbin 305. The substrate 363 has a hole at a position positioned on the cylinder 361, and positioning can be performed by inserting the substrate 363 into the hole. Further, by melting the cylinder 361, it is possible to prevent the axial detachment.

In the three-phase DC brushless motor, a hall sensor for detecting the position of a rotor (not shown) is required. Without the inner diameter extension 360, when the Hall sensor is provided on the substrate 363, if it is installed at the axial end of the inner wall 350 of the first insulating bobbin 305, the position of the rotor is far away, and the magnetic flux is detected. It becomes difficult. For this reason, it is necessary to take measures such as increasing the axial dimension of the magnet provided in the rotor and shortening the distance to the Hall sensor.
In the third embodiment, since the first insulating bobbin 305 has the inner diameter extension 360, the axial distance between the substrate 363 and the rotor for mounting the Hall sensor can be reduced. For this reason, detection of magnetic flux becomes easy and the amount of material used can be suppressed compared with the case where it responds by lengthening a magnet size.

  In the third embodiment, the method of winding the windings on the stator of the rotating electrical machine and the arrangement of the crossover wires are the same as those in the first embodiment, and thus the description thereof is omitted.

As described above, the stator of the rotating electrical machine according to the third embodiment includes the insulating bobbin fitted to the magnetic pole piece constituting the unit core, and the insulating bobbin has the outer wall and the inner wall, and the inner wall Three crossover grooves are provided on the outer diameter side of the wire, and there are provided crossover holding projections on the inner diameter side, two slits are provided in the circumferential direction, and a crossover is provided on the outer wall. Since the connecting wire storage groove for storing the wire is provided and the inner diameter extension part is provided on the inner diameter side of the inner wall, the connecting wire is arranged on the outer diameter side when the connecting wire is arranged after the core is integrated. Eliminating the work to be moved to the position improves the workability, and there is no need to add another part such as a stator terminal, and it is possible to provide an inexpensive stator for a rotating electrical machine.
Furthermore, since the stator of the rotating electrical machine according to the third embodiment can narrow the axial distance between the hall sensor attached to the substrate and the rotor, there is an effect that the magnetic flux can be easily detected.

Embodiment 4 FIG.
Embodiment 4 is an example in which the present invention is applied to a three-phase DC brushless motor having four poles and six teeth, which is a type of rotating electrical machine.
FIG. 21 is a perspective view of a unit core related to the stator of the rotating electrical machine, FIG. 22 is a layout diagram of the unit core, and FIG. 23 is a schematic connection diagram of the stator of the rotating electrical machine with respect to the configuration and functions of the fourth embodiment. A description will be given based on FIG. 24 which is a schematic configuration diagram of a winding machine used when forming a stator of a rotating electrical machine.
22 and 23, the unit core 402 is shown in a simplified manner, and windings and insulating bobbins wound around the tooth portion 432 are omitted.

First, the arrangement of the unit core 402 and the unit core will be described with reference to FIGS.
The difference from the unit core 2 of the first embodiment is that the number of magnetic pole pieces 403 is one and that the number of magnetic pole pieces 403 constituting the stator 400 of the rotating electrical machine is six.
In FIG. 21, each magnetic pole piece 403 has a back yoke portion 431 and a teeth portion 432 protruding from the back yoke portion 431, and each back yoke portion 431 is used for manufacturing a stator 400 of a rotating electrical machine. An attachment hole 434 for attaching the unit core 402 to the iron core holding jig 8 is provided.

FIG. 22 is a diagram illustrating a state in which all the magnetic pole pieces 403 constituting the stator 400 of the rotating electrical machine according to the fourth embodiment are arranged in an annular shape.
FIG. 23 is a schematic connection diagram schematically showing a connection state by arranging all the magnetic pole pieces 403 constituting the stator 400 of the rotating electrical machine in a straight line.

FIG. 24 is a schematic configuration diagram of a winding machine used when forming the stator 400 of the rotating electrical machine according to the fourth embodiment.
Since the configuration is the same as that of the first embodiment, description thereof is omitted. The difference is that two pole pieces 403 are arranged.

  In the fourth embodiment, the first insulating bobbin and the second insulating bobbin are different in dimensions from the insulating bobbin in the first embodiment, but the structure and function are the same, and therefore, illustration and description are omitted. To do. In the following description, the insulating bobbin and the reference numerals of the respective parts are omitted.

Next, a method for manufacturing the stator 400 of the rotating electrical machine according to the fourth embodiment will be sequentially described.
The first step will be described. The two unit cores 402a and 402b are arranged so as to be substantially point-symmetrical with respect to the center O of the iron core holding jig 8, and each magnetic pole piece has a back yoke portion on the inner diameter side of the rotating shaft of the iron core holding jig. A mounting hole 434 provided in the back yoke portion 431 of each of the magnetic pole pieces 403a and 403b is inserted into and fixed to the mounting pin 81 of the iron core holding jig 8 that is mounted and arranged in the direction in which the tooth portion faces the radial side. Then, the iron core holding jig 8 is rotated to first move one magnetic pole piece 403a to the front position of the flyer 9 (see FIG. 24).

  Next, the second step will be described. After fixing the terminal portion of the winding 4 protruding from the tip of the arm portion 92 of the flyer 9 to the winding start wire fixing pin 82 installed in the iron core holding jig 8, the winding 4 is moved to the winding frame 52. After that, the flyer 9 is rotated, and the winding 4 is wound around the tooth portion 432 of the magnetic pole piece 403a while the rotary shaft 91 is slid along the axial direction (Z direction) in synchronization with the rotation.

  Next, the third step will be described. The iron core holding jig 8 is rotated, and the magnetic pole piece 403b is moved to the front position of the flyer 9 (the position where the magnetic pole piece 403a in FIG. At this time, the winding unit 4 wound around the other magnetic pole piece 403a is stored along the connecting wire storing groove provided on the outer wall of the first insulating bobbin without cutting, and then the other unit A predetermined length enough to reach the core 402b is secured as the crossover line 41.

  Next, the fourth step will be described. The winding 4 is moved to the winding frame with respect to the magnetic pole piece 403b of the other unit core 402b, and the winding 4 is wound in the same direction as the magnetic pole piece 403a. At this time, the crossover 41 secures a predetermined length along the crossover hooking portion.

  Next, the fifth step will be described. The unit cores 402a and 402b in which the windings 4 are wound around the teeth portions 432 of the magnetic pole pieces 403a and 403b are removed from the iron core holding jig 8, and the teeth portions 432 are arranged in an arc shape. Thus, a set of unit cores 402 in which the winding 4 is continuously wound around the set of unit cores 402a and 402b corresponding to the W phase is obtained.

  Next, the sixth step will be described. Similarly, winding 4 is wound on one set of unit cores 402 corresponding to the U phase and the V phase, and three sets (multiples of 3) of these one set of unit cores 402 are used. As shown in FIG. 22, the three sets are shifted by 60 degrees sequentially along the circumferential direction to form an annular shape. Then, adjacent end surfaces of the unit cores 402 are joined to each other by welding or adhesion.

  Next, the seventh step will be described. Although it is a parallel operation with the sixth step, when assembling the three sets of unit cores 402 in an annular shape, the connecting wire 41 between the spaced teeth portions is passed through a slit provided on the inner wall of the first insulating bobbin, and the inner diameter It is arranged on the upper side or the lower side in the axial direction of the protrusion on the side.

  Next, the eighth step will be described. After each unit core is annularly assembled, the crossover wire 41 between the spaced tooth portions is disposed in a crossover storage groove provided on the outer diameter side of the inner wall of the first insulating bobbin.

  Next, the ninth step will be described. The winding end line of the winding of each U-phase, V-phase, and W-phase magnetic pole piece 403b is wound around the connecting wire storage groove provided on the outer wall of the first insulating bobbin so that the connection state shown in FIG. The line terminal part is housed and the neutral point is connected. Further, the neutral point is connected to the conductive plate.

In the stator of the rotating electrical machine of the fourth embodiment, the effect shown in the first embodiment can be obtained even when the winding is continuously performed with the connecting wire 41 connected to the spacing tooth portion 432. In addition, in the stator of the rotating electrical machine according to the fourth embodiment, there is no crossover 44 to the adjacent tooth portion 432.
Further, the present invention is not limited to a 4-pole 6-tooth rotating electric machine, and can be used when only the teeth in the same phase are taken out and continuously wound around the separated teeth.

  As described above, the stator of the four-pole six-tooth three-phase DC brushless motor according to the fourth embodiment includes the insulating bobbin that is fitted to the magnetic pole piece constituting the unit core. Has an outer wall and an inner wall, and there are three connecting wire storage grooves for storing the connecting wire on the outer diameter side of the inner wall, and there are connecting wire holding projections on the inner diameter side, and two slits in the circumferential direction. And the outer wall is provided with a connecting wire storage groove for storing the connecting wire, so that the connecting wire is moved to the outer diameter side when the connecting wire is arranged after the core is integrated. By eliminating the work, workability is improved, and there is no need to add another part such as a stator terminal, and there is an effect that an inexpensive stator for a rotating electrical machine can be provided.

  Further, in the method for manufacturing a stator for a four-pole six-tooth three-phase DC brushless motor according to the fourth embodiment, an insulating bobbin fitted to a magnetic pole piece constituting the unit core is provided. There are an outer wall and an inner wall. There are three connecting wire storage grooves on the outer diameter side of the inner wall to store the connecting wires, and there are connecting wire holding projections on the inner diameter side, and two slits in the circumferential direction. A winding machine comprising an iron core holding jig and a flyer is used for a stator of a rotating electric machine having a structure in which a jumper storage groove for storing a jumper wire is provided on the outer wall, and according to a predetermined process. By winding the winding around the pole piece of the unit core, the workability is improved by eliminating the work of moving the crossover wire to the outer diameter side during the work of placing the crossover wire after integrating the core. No need to add separate parts It is possible to manufacture the rolling electric machine stator.

Embodiment 5 FIG.
Embodiment 5 is an example in which the present invention is applied to a 6-pole 9-tooth 3-phase DC brushless motor, which is a type of rotating electrical machine.
FIG. 25 is a perspective view of a unit core related to the stator of the rotating electrical machine, FIG. 26 is a layout diagram of the unit core, and FIG. 27 is a schematic connection diagram of the stator of the rotating electrical machine with respect to the configuration and functions of the fifth embodiment. A description will be given based on FIG. 28 which is a schematic configuration diagram of a winding machine used when forming a stator of a rotating electrical machine.
26 and 27, the unit core 502 is shown in a simplified manner, and windings and insulating bobbins wound around the tooth portion 532 are omitted.

First, the arrangement of the unit core 502 and the unit core will be described with reference to FIGS.
The difference from the unit core 2 of the first embodiment is that the number of the magnetic pole pieces 503 is one and the number of the magnetic pole pieces 503 constituting the stator 500 of the rotating electrical machine is nine.
In FIG. 25, each magnetic pole piece 503 has a back yoke portion 531 and a teeth portion 532 protruding from the back yoke portion 531, and each back yoke portion is used for manufacturing a stator 500 of a rotating electrical machine. An attachment hole 534 for attaching the unit core 502 to the iron core holding jig is provided.

FIG. 26 is a diagram illustrating a state in which all the magnetic pole pieces 503 constituting the stator 500 of the rotating electrical machine of the fifth embodiment are arranged in an annular shape.
FIG. 27 is a schematic connection diagram schematically illustrating a connection state by arranging all the magnetic pole pieces 503 constituting the stator 500 of the rotating electrical machine in a straight line.

FIG. 28 is a schematic configuration diagram of a winding machine used when forming the stator 500 of the rotating electrical machine of the fifth embodiment.
Since the configuration is the same as that of the first embodiment, description thereof is omitted. The difference is that three pole pieces 503 are arranged.

  In the fifth embodiment, the first and second insulating bobbins are different in size from the insulating bobbin in the first embodiment, but the structure and function are the same, so the illustration and description are omitted. To do. In the following description, the insulating bobbin and the reference numerals of the respective parts are omitted.

Next, a method of manufacturing the rotating electric machine stator 500 according to the fifth embodiment will be sequentially described.
The first step will be described. The three unit cores 502a, 502b, and 502c are arranged so as to be positioned at an interval of about 90 degrees around the center O of the iron core holding jig 8, and each magnetic pole piece is located on the inner diameter side of the rotating shaft of the iron core holding jig 8. A mounting hole 534 provided in the back yoke portion 531 of each of the magnetic pole pieces 503a, 503b, and 503c is inserted into the mounting pin 81 of the iron core holding jig 8 in which the back yoke portion is mounted and disposed in the direction in which the teeth portion is directed to the outer diameter side. And fix. Then, the iron core holding jig 8 is rotated to first move one magnetic pole piece 503a to the front position of the flyer 9 (see FIG. 28).

  Next, the second step will be described. After fixing the terminal portion of the winding 4 protruding from the tip of the arm portion 92 of the flyer 9 to the winding start wire fixing pin 82 installed in the iron core holding jig 8, the winding 4 is moved to the winding frame 52. After that, the flyer 9 is rotated, and the winding 4 is wound around the tooth portion 532 of the magnetic pole piece 503a while the rotary shaft 91 is slid in the axial direction (Z direction) in synchronization with the rotation.

  Next, the third step will be described. The iron core holding jig 8 is rotated, and the magnetic pole piece 503b is moved to the front position of the flyer 9 (the position where the magnetic pole piece 503a in FIG. At this time, the other unit is stored after being stored along the crossover storage groove provided on the outer wall of the first insulating bobbin without cutting the winding end portion of the winding 4 wound around the other magnetic pole piece 503a. A predetermined length enough to reach the core 502b is secured as the crossover line 41.

  Next, the fourth step will be described. The winding 4 is moved to the winding frame with respect to the magnetic pole piece 503b of the other unit core 502b, and the winding 4 is wound in the same direction as the magnetic pole piece 503a. At this time, the crossover 41 secures a predetermined length along the crossover hooking portion.

  Next, the fifth step will be described. The iron core holding jig 8 is rotated, and the magnetic pole piece 503c is moved to the front position of the flyer 9 (the position where the magnetic pole piece 503a in FIG. 28 is located). At this time, after the winding end wound around the other magnetic pole piece 503b is not cut, it is housed along the connecting wire housing groove provided on the outer wall of the first insulating bobbin, and then the other unit. A predetermined length enough to reach the core 502b is secured as the crossover line 41.

  Next, the sixth step will be described. The winding 4 is moved to the winding frame with respect to the magnetic pole piece 503c of the other unit core 502c, and the winding 4 is wound in the same direction as the magnetic pole piece 503a. At this time, the crossover 41 secures a predetermined length along the crossover hooking portion.

  Next, the seventh step will be described. The unit cores 502a, 502b, and 502c in which the winding 4 is wound around the tooth portions 532 of the magnetic pole pieces 503a, 503b, and 503c are removed from the iron core holding jig 8, and the teeth portions 532 are arranged in an arc shape. Thus, a set of unit cores 502 in which the winding 4 is continuously wound around the set of unit cores 502a, 502b, and 502c corresponding to the W phase is obtained.

  Next, the eighth step will be described. Similarly, winding 4 is wound on one set of unit cores 502 corresponding to the U phase and the V phase, and three sets (multiples of 3) of these one set of unit cores 502 are used. As shown in FIG. 26, the three sets are arranged by shifting by 40 degrees sequentially along the circumferential direction to form an annular shape. Then, adjacent end surfaces of the unit cores 502 are joined together by welding, adhesion, or the like.

  Next, the ninth step will be described. Although it is a parallel operation with the eighth step, when assembling the three sets of unit cores 502 in an annular shape, the connecting wire 41 between the spaced tooth portions is passed through a slit provided on the inner wall of the first insulating bobbin, It is arranged on the upper side or the lower side in the axial direction of the protrusion on the side.

  Next, the tenth step will be described. After each unit core 502 is annularly assembled, the connecting wire 41 between the spaced apart tooth portions is arranged in the connecting wire storage groove provided on the outer diameter side of the inner wall of the first insulating bobbin.

  Next, the eleventh step will be described. Wind the winding end line of each U-phase, V-phase, and W-phase pole piece 503c in the connecting wire storage groove provided on the outer wall of the first insulating bobbin so that the connection state shown in FIG. The line terminal part is housed and the neutral point is connected. Further, the neutral point is connected to the conductive plate.

In the stator of the rotating electrical machine of the fifth embodiment, the effect shown in the first embodiment can be obtained even when the winding is continuously performed with the connecting wire 41 connected to the spacing tooth portion 532. In the stator of the rotating electric machine according to the fifth embodiment, there is no crossover 44 to the adjacent tooth portion 532.
Further, the present invention is not limited to a 6-pole 9-tooth rotating electrical machine, and can be used when only the teeth in the same phase are taken out and continuously wound around the separated teeth.

  As described above, the stator of the 6-pole 9-tooth three-phase DC brushless motor according to the fifth embodiment includes the insulating bobbin fitted to the magnetic pole pieces constituting the unit core, and the insulating bobbin includes Has an outer wall and an inner wall, and there are three connecting wire storage grooves for storing the connecting wire on the outer diameter side of the inner wall, and there are connecting wire holding projections on the inner diameter side, and two slits in the circumferential direction. And the outer wall is provided with a connecting wire storage groove for storing the connecting wire, so that the connecting wire is moved to the outer diameter side when the connecting wire is arranged after the core is integrated. By eliminating the work, workability is improved, and there is no need to add another part such as a stator terminal, and there is an effect that an inexpensive stator for a rotating electrical machine can be provided.

  Further, in the method of manufacturing a stator for a 6-pole 9-tooth three-phase DC brushless motor according to the fifth embodiment, an insulating bobbin fitted to the magnetic pole piece constituting the unit core is provided. There are an outer wall and an inner wall. There are three connecting wire storage grooves on the outer diameter side of the inner wall to store the connecting wires, and there are connecting wire holding projections on the inner diameter side, and two slits in the circumferential direction. A winding machine comprising an iron core holding jig and a flyer is used for a stator of a rotating electric machine having a structure in which a jumper storage groove for storing a jumper wire is provided on the outer wall, and according to a predetermined process. By winding the winding around the pole piece of the unit core, the workability is improved by eliminating the work of moving the crossover wire to the outer diameter side during the work of placing the crossover wire after integrating the core. No need to add separate parts It is possible to manufacture the rolling electric machine stator.

Embodiment 6 FIG.
The sixth embodiment is an example in which the present invention is applied to a three-phase DC brushless motor having 8 poles and 12 teeth, which is a type of rotating electrical machine.
FIG. 29 is a perspective view of a unit core related to the stator of the rotating electrical machine, FIG. 30 is a layout diagram of the unit core, and FIG. 31 is a schematic connection diagram of the stator of the rotating electrical machine, regarding the configuration and functions of the sixth embodiment. A description will be given based on FIG. 32 which is a schematic configuration diagram of a winding machine used when forming a stator of a rotating electric machine.
30 and 31, the unit core 602 is simplified, and windings and insulating bobbins wound around the teeth portion 632 are omitted.

First, the arrangement of the unit core 602 and the unit core will be described with reference to FIGS.
The difference from the unit core 2 of the first embodiment is that the number of magnetic pole pieces 603 is one and the method of connecting the stator 600 of the rotating electrical machine is different.
In FIG. 29, each magnetic pole piece 603 has a back yoke portion 631 and a teeth portion 632 protruding from the back yoke portion 631, and each back yoke portion 631 is used for manufacturing a stator 600 of a rotating electric machine. An attachment hole 634 for attaching the unit core 602 to the iron core holding jig 8 is provided.

FIG. 30 is a diagram showing a state in which all the magnetic pole pieces 603 constituting the stator 600 of the rotating electrical machine of the sixth embodiment are arranged in an annular shape.
FIG. 31 is a schematic connection diagram schematically illustrating a connection state by arranging all the magnetic pole pieces 603 constituting the stator 600 of the rotating electrical machine in a straight line.

FIG. 32 is a schematic configuration diagram of a winding machine used when forming the stator 600 of the rotating electrical machine of the sixth embodiment.
Since the configuration is the same as that of the first embodiment, description thereof is omitted. The difference is that four pole pieces 603 are arranged.

  In the sixth embodiment, the first insulating bobbin and the second insulating bobbin are the same as the insulating bobbin in the first embodiment, and therefore, illustration and description thereof are omitted. In the following description, the insulating bobbin and the reference numerals of the respective parts are omitted.

Next, a method for manufacturing the stator 600 of the rotating electrical machine according to the sixth embodiment will be sequentially described.
The first step will be described. Four unit cores 602a, 602b, 602c, and 602d are arranged at intervals of about 90 degrees around the center O of the iron core holding jig 8, and each pole piece is on the inner diameter side of the rotating shaft of the iron core holding jig. A mounting hole 634 provided in the back yoke portion 631 of each of the magnetic pole pieces 603a, 603b, 603c, and 603d on the mounting pin 81 of the iron core holding jig 8 that is disposed with the back yoke portion attached in the direction in which the teeth portion faces the outer diameter side. Insert and fix. Then, the iron core holding jig 8 is rotated to first move one magnetic pole piece 603a to the front position of the flyer 9 (see FIG. 32).

  Next, the second step will be described. After fixing the terminal portion of the winding 4 protruding from the tip of the arm portion 92 of the flyer 9 to the winding start wire fixing pin 82 installed in the iron core holding jig 8, the winding 4 is moved to the winding frame 52. After that, the flyer 9 is rotated, and the winding 4 is wound around the tooth portion of the magnetic pole piece 603a while the rotary shaft 91 is slid along the axial direction (Z direction) in synchronism with this.

  Next, the third step will be described. The iron core holding jig 8 is rotated to move the magnetic pole piece 603b to the front position of the flyer 9 (the position where the magnetic pole piece 603a in FIG. At this time, after the winding unit 4 is wound along the crossover groove provided on the outer wall of the first insulating bobbin without cutting the winding end portion of the winding 4 wound around the other magnetic pole piece 603a, the other unit A predetermined length enough to reach the core 602b is secured as the crossover line 41.

  Next, the fourth step will be described. The winding 4 is moved to the winding frame with respect to the magnetic pole piece 603b of the other unit core 602b, and the winding 4 is wound in the same direction as the magnetic pole piece 603a. At this time, the crossover 41 secures a predetermined length along the crossover hooking portion.

  Next, the fifth step will be described. The iron core holding jig 8 is rotated to move the magnetic pole piece 603c to the front position of the flyer 9 (the position where the magnetic pole piece 603a in FIG. At this time, after the winding end wound around the other magnetic pole piece 603b is not cut, the other unit is accommodated along the connecting wire accommodation groove provided on the outer wall of the first insulating bobbin. A predetermined length enough to reach the core 602b is secured as the crossover line 41.

  Next, the sixth step will be described. The winding 4 is moved to the winding frame with respect to the magnetic pole piece 603c of the other unit core 602c, and the winding 4 is wound in the same direction as the magnetic pole piece 603a. At this time, the crossover 41 secures a predetermined length along the crossover hooking portion.

  Next, the seventh step will be described. The iron core holding jig 8 is rotated to move the magnetic pole piece 603d to the front position of the flyer 9 (the position where the magnetic pole piece 603a in FIG. At this time, after the winding 4 wound around the other magnetic pole piece 603c is not cut, the other unit is accommodated along the crossover groove provided on the outer wall of the first insulating bobbin. A predetermined length enough to reach the core 602c is secured as the crossover line 41.

  Next, the eighth step will be described. The winding 4 is moved to the winding frame with respect to the magnetic pole piece 603d of the other unit core 602d, and the winding 4 is wound in the same direction as the magnetic pole piece 603a. At this time, the crossover 41 secures a predetermined length along the crossover hooking portion.

  Next, the ninth step will be described. The unit cores 602a, 602b, 602c, and 602d, in which the winding 4 is wound around the teeth 632 of the pole pieces 603a, 603b, 603c, and 603d, are removed from the iron core holding jig 8, and the teeth 632 are formed in an arc shape. Deploy. Thus, a set of unit cores 602 in which the windings 4 are continuously wound around the set of unit cores 602a, 602b, 602c, and 602d corresponding to the W phase is obtained.

  Next, the tenth step will be described. Similarly, the winding 4 is wound around one set of unit cores 602 corresponding to the U phase and the V phase, and three sets (multiples of 3) of these set of unit cores are used. As shown in FIG. 30, the set is shifted by 30 degrees sequentially along the circumferential direction to form an annular shape. And the mutually adjacent end surfaces of each unit core 602 are couple | bonded by welding, adhesion | attachment, etc.

  Next, the eleventh step will be described. Although it is a parallel operation with the tenth step, when assembling the three sets of unit cores 602 in an annular shape, the connecting wire 41 between the spaced teeth portions is passed through a slit provided on the inner wall of the first insulating bobbin, It is arranged on the upper side or the lower side in the axial direction of the protrusion on the side.

  Next, the twelfth process will be described. After each unit core 602 is annularly assembled, the connecting wire 41 between the spaced apart tooth portions is arranged in the connecting wire storage groove provided on the outer diameter side of the inner wall of the first insulating bobbin.

  Next, the thirteenth process will be described. Wind the winding end line of each U-phase, V-phase, and W-phase pole piece 603d in the connecting wire storage groove provided on the outer wall of the first insulating bobbin so that the connection state shown in FIG. The line terminal part is housed and the neutral point is connected. Further, the neutral point is connected to the conductive plate.

The effect of the stator of the rotating electrical machine of the sixth embodiment shown in the first embodiment can be obtained even when the winding is continuously performed with the connecting wire 41 connected to the spacing tooth portion 632. In addition, in the stator of the rotating electrical machine of the sixth embodiment, there is no crossover 44 to the adjacent tooth portion 632.
Further, the present invention is not limited to the 8-pole 12-tooth rotating electric machine, and can be used also in the case where only the teeth in the same phase are taken out and continuously wound around the separated teeth.

  As described above, the stator of the 8-pole 12-tooth three-phase DC brushless motor according to the sixth embodiment includes the insulating bobbin fitted to the magnetic pole pieces constituting the unit core, and the insulating bobbin includes Has an outer wall and an inner wall, and there are three connecting wire storage grooves for storing the connecting wire on the outer diameter side of the inner wall, and there are connecting wire holding projections on the inner diameter side, and two slits in the circumferential direction. And the outer wall is provided with a connecting wire storage groove for storing the connecting wire, so that the connecting wire is moved to the outer diameter side when the connecting wire is arranged after the core is integrated. By eliminating the work, workability is improved, and there is no need to add another part such as a stator terminal, and there is an effect that an inexpensive stator for a rotating electrical machine can be provided.

  Further, in the method of manufacturing a stator for an 8-pole 12-tooth three-phase DC brushless motor according to the sixth embodiment, an insulating bobbin fitted to the magnetic pole piece constituting the unit core is provided. There are an outer wall and an inner wall. There are three connecting wire storage grooves on the outer diameter side of the inner wall to store the connecting wires, and there are connecting wire holding projections on the inner diameter side, and two slits in the circumferential direction. A winding machine comprising an iron core holding jig and a flyer is used for a stator of a rotating electric machine having a structure in which a jumper storage groove for storing a jumper wire is provided on the outer wall, and according to a predetermined process. By winding the winding around the pole piece of the unit core, the workability is improved by eliminating the work of moving the crossover wire to the outer diameter side during the work of placing the crossover wire after integrating the core. No need to add other parts It is possible to manufacture the stator of the rotating electric machine.

  It should be noted that the present invention can be freely combined with each other within the scope of the invention, and each embodiment can be appropriately modified or omitted.

1,300,400,500,600 Stator of rotating electric machine,
2, 2a, 2b, 402, 502, 602 unit core,
3, 3a to 3d, 403, 403a, 403b, 503, 503a, 503b, 503c, 603, 603a, 603b, 603c, 603d
4 windings, 5, 205, 305 first insulating bobbin, 6 second insulating bobbin,
7 Winding machine, 8 Iron core holding jig, 9 Flyer, 25 Bobbin for insulation,
31,431,531,631 back yoke part,
32,432,532,632 teeth, 41,44 crossover,
50,250,350 inner wall, 51,251,351 outer wall,
52,252,352 winding frame, 53,253,353 teeth fitting part,
54,254,354 Back yoke fitting part, 55,255,355 slit,
56, 256, 356 Crossover storage groove, 57, 257, 357 Projection,
58, 358 Crossover storage groove, 59, 259, 359 recess, 60 inner wall, 61 outer wall,
62 reel, 63 teeth fitting part, 64 back yoke fitting part, 91 rotating shaft,
360 inner diameter extension, 363 substrate.

Claims (14)

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.
The winding wound around each tooth portion of each pole piece of the same phase is routed without being cut halfway between the pole pieces ,
There are two slits through which the connecting wire is provided in the circumferential direction provided on the inner wall of the first insulating bobbin, and the protrusions that protrude toward the inner diameter side are on both ends in the circumferential direction of the two slits. The stator of the rotating electric machine provided respectively . 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.
The winding wound around each tooth portion of each pole piece of the same phase is routed without being cut halfway between the 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. the slit is two places, said protrusions stator 1 and Ru each 2 Kodea axially in the circumferential direction both end portions of the slit rotary electric machine between the slits further projecting radially inwardly. 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. 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 a three-stage axial direction, the inner wall is further provided with two slits through which a crossover is passed in the circumferential direction, and one protrusion protruding toward the inner diameter side between the slits and both ends in the circumferential direction of the slits 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 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 eleventh step to be arranged in
A twelfth step of arranging the connecting wire between the spaced apart teeth in the connecting wire storing groove provided on the outer diameter side of the inner wall of the first insulating bobbin after annular assembly;
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 9, wherein a procedure is added. The method for manufacturing a stator of a rotating electrical machine according to claim 9 or 10 , 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 a three-stage axial direction, the inner wall is further provided with two slits through which a crossover is passed in the circumferential direction, and one protrusion protruding toward the inner diameter side between the slits and both ends in the circumferential direction of the slits 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 manufacturing method of the stator of the rotary electric machine according to claim 12 , further comprising a step of connecting a neutral point of the winding end line of the winding of each phase to a conductive member. 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.
The winding wound around each tooth portion of each pole piece of the same phase is routed without being cut halfway between the pole pieces,
There are two slits through which the connecting wire is provided in the circumferential direction provided on the inner wall of the first insulating bobbin, and the protrusions that protrude toward the inner diameter side are on both ends in the circumferential direction of the two slits. A rotating electric machine stator provided respectively;
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 apart teeth in the connecting wire storing groove provided on the outer diameter side of the inner wall of the first insulating bobbin after annular assembly;
The manufacturing method of the stator of the rotary electric machine which consists of.

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