STATOR, BRUSHLESS MOTOR, METHOD FOR MANUFACTURING A STATOR

Abstract

Stator (110) comprising: a plurality of core-forming sections (14), each of which comprises a plurality of yoke-forming sections (22) configuring an annular yoke and segmented in a circumferential direction of the yoke, and a plurality of tooth sections (24) projecting from the respective yoke-forming sections (22) along a radial direction of the yoke, the plurality of yoke-forming sections (22) and the plurality of tooth sections (24) being integrated with one another; a plurality of coil wires (16) wound onto the respective tooth sections (24) to configure a plurality of winding sections (26);and a plurality of insulators (18), each comprising a plurality of insulator sections (32) integrated with each of the respective core-forming sections (14), and insulating between the tooth sections (24) and the winding sections (26), and a plurality of first connecting sections (34) connecting the plurality of insulator sections (32) together, wherein: the stator (110) further comprises a connection point (112) provided on each of the plurality of insulators (18) and which makes a connection with a connecting section (30) of each of the plurality of coil wires (16); wherein each of the plurality of coil wires (16) comprises a crossing wire (28) connecting the plurality of winding sections (26) together;and the connection point (112) is provided on the opposite side of the axial direction of the yoke to the crossing wires (28), wherein the majority of first connection sections (34) are arranged with a gap between them in an axial direction of the yoke (40).

Description

BACKGROUND OF THE INVENTIONTechnical FieldThe present invention relates to a stator, a brushless motor, and a method for manufacturing a stator.Prior ArtKnown stators used in a brushless motor are disclosed in, for example, Japanese Patent Application Laid-Open JP H09-322 441 A. JP H09-322 441 A discloses an armature having a yoke configured by a plurality of annular yoke configuration sections segmented in the axial direction. Each of the yoke configuration sections is integrally formed with a plurality of tooth sections protruding toward a radial direction outside of the yoke.As disclosed in Japanese Patent JP 3 816 783 B2, known stators include a stator core and a pair of insulators mounted on the stator core from both sides of an axial direction of the stator core.DE 10 2008 033 604 A1 discloses a stator having individual segments, arranged in the circumferential direction, made of laminated cores, windings and end caps, which serve to protect the laminated core and increase the manufacturing accuracy during winding.DE 10 2008 054 520 A1 discloses a stator having a plurality of individual stator segments which are arranged distributed over the circumference and the coils of which are electrically connected to one another by means of a contact ring, as a result of which the assembly can be simplified.JP 2011-205 877 A discloses a stator segment, by means of the specific geometry of which the roundness of the stator during assembly can be improved.DE 2011 054 373 A1 discloses a stator for an internal rotor electric motor which is produced from a plurality of stator sections which in turn consist of core members, an insulator and a winding.SummaryHowever, when the technology of JP H09-322 441 A is applied to an armature applied to an inner rotor type rotating machine armature, the plurality of tooth portions protrude toward a radial direction inside each of the yoke configuration portions. Accordingly, it is difficult to wind a coil from the radial direction outside of each of the yoke configuration portions with the blade of a flyer machine (i.e., a flyer machine). The coils must be wound from the radial direction inside each of the yoke configuration sections with a nozzle of a nozzle machine. However, in such cases, since it is necessary to ensure a space for passing the nozzle, it is difficult to achieve high-density arrangement of the coils, which is disadvantageous in terms of reducing the size of a rotating machine. Furthermore, the coil winding speed is lower when a nozzle machine is inserted than when a vane winding machine is inserted. This is disadvantageous in performing coil winding at high speed and is therefore also disadvantageous in reducing costs resulting from reducing the number of equipment units.It should be noted that a vane winding machine is a device that moves the vane to encircle the periphery of a tooth portion during alignment and winding of a coil over the tooth portion with a variable shaper. A nozzle machine is a device that wraps a spool on a tooth portion by repeatedly alternating between a process in which the nozzle circles the circumference of the tooth portion and a process of sliding the nozzle in the axial direction.Since a stator disclosed in Japanese Patent JP 3 816 783 B2 is provided with a pair of insulators, the number of components required for mounting the stator is increased.In view of the above circumstances, the present invention is directed to achieving a more compact and less expensive stator to be applied to a brushless motor.The present invention is also directed to providing a method of manufacturing a stator that can reduce the number of components necessary for mounting the stator.To address these issues, a stator according to a first aspect of the present invention comprises the features of claim 1.Due to the above-described configuration, the stator is manufactured using the following processes, for example. First, the core configuration sections are integrated with the insulator sections of each of the insulators to form subassemblies for multiple groups. Next, a blade winding machine for winding the coil wires onto the respective tooth portions of each of the subassemblies from a radial direction from the outside is employed to form stator configuration portions for each of the groups. Then, the plurality of stator configuration sections are assembled together to form the stator. By these processes, the stator is manufactured.In the stator, the yoke is segmented in the circumferential direction of the yoke and configured of the plurality of yoke configuration sections. Therefore, even when the stator is used in a brushless motor in which a plurality of tooth portions protrude along the radial direction of the yoke, the subassemblies for each of the plurality of groups are formed as described above, and the coil wires can be wound on each of the tooth portions of each of the subassemblies from the radial direction from the outside using a vane winding machine. Thus, there is no need to ensure a space between the tooth portions as required when a nozzle machine is used, which enables to achieve a denser arrangement of the coil wires, and enables to realize a more compact stator.The stator has a terminal provided on each of the plurality of insulators and which connects to a terminal portion of each of the plurality of coil wires. Each of the coil wires includes a plurality of crossing wires that together connect the plurality of winding portions. The terminal is provided on the opposite side of the axial direction of the yoke to the crossing wires. The plurality of first connecting portions are arranged with a gap therebetween in the axial direction of the yoke.The terminal is provided at each of the plurality of insulators, and each of the terminal portions of the plurality of coil wires is connected to the respective terminal. Positioning of the terminal portions of the coil wires can be accordingly easily performed. The terminal on the opposite side of the axial direction of the yoke to the crossing wires allows the terminal and a control circuit to be easily connected to each other on the opposite side to the crossing wires.Furthermore, as described above, the yoke is segmented into the plurality of yoke configuration sections in the circumferential direction of the yoke, and thus, for example, the stator can be made more compact in the axial direction of the yoke than in cases where the yoke is segmented into a plurality of yoke configuration sections in the axial direction of the yoke.When a vane winding machine is used, since the winding speed of the coil wires is higher than when using a nozzle machine, the winding operation of the coil wires can be accelerated, and accordingly, a reduction in cost of the stator due to a reduction in the number of pieces of equipment can be achieved.As with a stator according to a second aspect of the present invention, the stator according to the first aspect is preferably configured wherein the plurality of coil wires configure a plurality of phases.A stator according to a third aspect of the present invention is the stator according to the first aspect or the second aspect, wherein: a housing portion is formed at at least one first connection portion among the plurality of first connection portions for accommodating a member.According to this stator, the housing portion for accommodating a member is formed at at least one first connection portion among the plurality of first connection portions provided with a gap therebetween in one direction among the radial direction of the yoke, the axial direction of the yoke, or in a direction that is a combination thereof. Interference between the first connection portion and the member can be accordingly avoided, making it possible to realize the stator itself even more compact in size and at lower cost.A stator according to a fourth aspect of the present invention is a stator of any one of the first aspect to the third aspect, wherein: each of the first connection portions includes a holding portion that holds the plurality of crossing wires configured on the first connection portion.According to this stator, each of the first connection portions includes the holding portion that holds the plurality of crossing wires laid out on the first connection portion. Therefore, for example, the crossing wires can be held at the first connection portions by the holding portions when the mounting of the stator together with the plurality of stator configuration portions is performed as described above, and thus efficient machining can be achieved when the plurality of stator configuration portions are mounted together. Furthermore, even after the stator is installed in a brushless motor, the crossing wires are held at the first connection portions by the holding portions, and therefore, rattle of the crossing wires can be suppressed, making it possible to suppress occurrence of noise and failures.A stator according to a fifth aspect of the present invention is a stator of any one of the first to fourth aspects, wherein: the plurality of first connection portions are provided with a gap therebetween in the radial direction of the yoke; and at least one of the plurality of first connection portions includes a holding portion which is provided between the plurality of first connection portions in the radial direction of the yoke and which holds the plurality of first connection portions in a state separated from each other in the radial direction of the yoke.According to this stator, the plurality of first connecting portions can be held in a state separated from each other in the radial direction of the yoke by the spacer. Accordingly, a space for laying out the crossing wires between the plurality of first connection portions in the yoke radial direction can be secured, and rattle of the plurality of first connection portions can also be suppressed.A stator according to a sixth aspect of the present invention is the stator according to any one of the first to fourth aspects, wherein: the plurality of first connection portions are arranged with a gap therebetween in the axial direction of the yoke; at least one of the plurality of first connection portions includes a spacer provided between the plurality of first connection portions in the axial direction of the yoke and holds the plurality of first connection portions in a state separated from each other in the axial direction of the yoke.According to this stator, the plurality of first connection portions can be held in a state separated from each other in the axial direction of the yoke by the spacer. Accordingly, a space for laying out the crossing wires between the plurality of first connection portions in the yoke axial direction can be secured, and rattle of the plurality of first connection portions can also be suppressed.A stator according to a seventh aspect of the present invention is the stator of any one of the first to sixth aspects, wherein the plurality of first connection portions are provided coaxially with the yoke.According to this stator, the first connecting portions are provided coaxially with the yoke, which allows the structure to be simplified.A stator according to an eighth aspect of the present invention is the stator according to the third aspect, wherein the member is a crossing wire among the plurality of crossing wires, the crossing wire being configured at the other first connection portion among the first connection portion including the housing portion.According to this stator, interference between the first connection portions and the crossing wires can be prevented therewith, and thus the length of the crossing wires can be prevented from increasing. The stator can accordingly be made even more compact and even at lower cost.A stator according to a ninth aspect of the present invention is the stator according to the fourth aspect, wherein the holding portion is formed in a protrusion shape.According to this stator, the holding portion is formed in a protrusion shape, which allows the structure to be simplified. Better handling can also be achieved when the plurality of first connecting portions are assembled together than in cases where the plurality of first connecting portions are assembled together around the entire circumference.A stator according to a tenth aspect of the present invention is the stator of the fifth aspect or the sixth aspect, wherein the holding portion is formed in a protrusion shape.According to this stator, the spacer is formed in a protrusion shape, which allows the structure to be simplified. Also, better handling can be achieved when the plurality of first connecting portions are assembled together than in the cases where the plurality of first connecting portions are assembled together around the entire circumference.A stator according to an eleventh aspect of the present invention is the stator of any one of the first to tenth aspects, wherein the plurality of first connection portions are positioned more inward toward the radial direction of the yoke than the core configuration portion.According to this stator, the plurality of first connecting portions are positioned more inward toward the yoke radial direction than the core forming portion. Accordingly, interference between the blade of the rotary winder and the plurality of first connecting portions can be avoided in winding the coil wire onto the tooth portions from the radially outer direction using the rotary winder.A stator according to a twelfth aspect of the present invention is the stator according to any one of the first to eleventh aspects, wherein: insulator portions of at least one of the plurality of insulators include insulator main body portions integrated with the respective core configuration portions and insulating between the tooth portions and the winding portions, and extending portions positioned more inward toward the radial direction than the core configuration portion and extending from the insulator main body portion in a direction of the axial direction of the yoke, the radial direction of the yoke, or the circumferential direction of the yoke, or a direction that is a combination thereof; and the plurality of first connection portions together connect the extending portions of the plurality of insulator portions.According to this stator, the extending portions extend from the insulator main body portions integrated with the respective core configuration portions in a direction of the axial direction of the yoke, the radial direction of the yoke, or the circumferential direction of the yoke, or a direction that is a combination thereof, and the extending end portions of the extending portions are connected to each other by the plurality of first connection portions. Here, the extending portion is positioned more inward toward the yoke radial direction than the core forming portion. Accordingly, interference between the blade of a field winding machine and the extending portion and / or the first connecting portion can be avoided in winding the coil wire onto the tooth portions from the radially outer direction using the field winding machine.A stator according to a thirteenth aspect of the present invention is the stator according to the twelfth aspect, wherein: the insulator portion includes a first insulator portion and a second insulator portion, the first insulator portion and the second insulator portion each include a tooth portion insulator portion and a yoke configuration portion insulator portion that respectively cover the tooth portion and the yoke configuration portion.A stator according to a fourteenth aspect of the present invention is the stator of the first aspect, wherein: the first connection portion is positioned on the inner side at the radial direction of the yoke; and a protrusion portion is formed at an end portion of at least one insulator portion of the plurality of insulator portions on an opposite side to a yoke side, the protrusion portion protruding toward the yoke side with respect to the first connection portion; and the terminal is provided at the protrusion portion.According to this stator, the terminal is provided on the protrusion portion protruding from the yoke side with respect to the first connection portion. Accordingly, interference between the terminal and the first connection portion can be avoided, and the positioning of the terminal portions can be carried out accordingly easily.A stator according to a fifteenth aspect of the present invention is the stator according to the fourteenth aspect, wherein: an insertion groove is formed at the protrusion portion so as to open toward the axial direction of the yoke; and the terminal is inserted into the insertion groove.According to this stator, the terminal can be easily fixed to the protrusion portion by inserting the terminal into the insertion groove formed on the protrusion portion.A stator according to a sixteenth aspect of the present invention is the stator according to the fourteenth aspect or the fifteenth aspect, wherein: the first connection portion is disposed offset in the axial direction of the yoke with respect to the plurality of insulator portions; and the terminal is in contact with a surface of the yoke side of the first connection portion.According to this stator, the terminal is in contact with a surface on the yoke side of the first connection portion, and rattle of the terminal can be accordingly prevented.A stator according to a seventeenth aspect of the present invention is the stator of the first aspect, wherein: the crossing wire is configured to be offset in an axial direction of the yoke with respect to the insulator portion.According to this stator, the crossing wire is arranged offset in an axial direction of the yoke with respect to the insulator portion, which allows the terminal and a control circuit to be easily connected to each other on the opposite side to the crossing wires.A stator according to an eighteenth aspect of the present invention is the stator according to the fourteenth aspect, further comprising a guide portion formed along the axial direction of the yoke at each of the plurality of insulators, wherein the terminal portion of each of the plurality of coil wires is guided by the guide portion. Positioning of the terminal portions of the coil wires can be accordingly easily performed.A stator according to a nineteenth aspect of the present invention is the stator according to the eighteenth aspect, wherein the guide portion is provided on a side surface of the protrusion portion.According to this stator, the guide portion is provided at the protrusion portion protruding toward the yoke side with respect to the first connection portion, thereby making it possible to avoid interference between the terminal portions and the first connection portion, and making it possible to easily position the terminal portions.A stator according to a twentieth aspect of the present invention is the stator of any one of the first to nineteenth aspects, further comprising a second connection portion which is separated from the plurality of first connection portions in an axial direction of the stator core, which is formed on at least one insulator of the plurality of insulators, and which together connects the plurality of insulator portions of the at least one insulator.According to this stator, the second connection portion is formed on at least one insulator of the plurality of insulators, and together connects the plurality of insulator portions of the at least one insulator. The second connection portion accordingly makes it possible to ensure the rigidity between the plurality of insulator portions and therefore the rigidity of the stator as a whole after the assembly.The second connecting portion is separated from the plurality of first connecting portions in the axial direction of the stator core. Accordingly, the rigidity of the entire stator after assembly can be secured with a good balance.A stator according to a twenty-first aspect of the present invention is the stator according to the twentieth aspect, wherein: the plurality of first connection portions are disposed on a first side in the axial direction of the stator core; and the second connection portion is formed on the insulator positioned farthest to a second side in the axial direction of the stator core from the plurality of insulators when the plurality of insulators are disposed in a pre-assembled state along the axial direction of the stator core.According to this stator, the second connection portion is formed on the insulator positioned farthest to the second axial direction side of the stator core from the plurality of insulators when the plurality of insulators are disposed in a pre-assembled state along the axial direction of the stator core. Accordingly, interference of the insulator portions formed on the other insulators with the second connection portion can be avoided when the plurality of insulators are mounted along the axial direction of the stator core.A stator according to a twenty-second aspect of the present invention is the stator according to the twentieth aspect, wherein: the plurality of first connection portions are arranged coaxially with each other and have different outer diameters from each other; and the second connection portion is formed on the insulator with the first connection portion of the smallest outer diameter among the plurality of insulators.According to this stator, the second connection portion is formed on the insulator with the first connection portion of the smallest outer diameter among the plurality of insulators. Interference of the insulator portions formed on the other insulators with the second connection portion can be accordingly prevented when the other insulators are assembled from an axial direction side of a first stator core to the insulator with the first connection portion having the smallest outer diameter.A stator according to a twenty-third aspect of the present invention is the stator of any one of the twentieth to twenty-second aspects, wherein: the second connection portion connects the plurality of extending portions of one of the insulators to each other.According to this stator, the second connecting portion connects together the plurality of extending portions of one of the insulators. Accordingly, the rigidity between the plurality of insulator portions can be secured even when each of the insulator portions includes the extending portions extending from the first connection portion.A stator according to a twenty-fourth aspect of the present invention is the stator of any one of the twentieth to twenty-third aspects, wherein the plurality of insulators have a locking structure for positioning with respect to each other, the locking structure including: a terminal portion formed at the second connection portion; and a mating terminal portion that mates with the terminal portion and is formed at an insulator portion positioned between a pair of insulator portions connected by the second connection portion of the plurality of insulator portions.According to this stator, the terminal portion is formed at the second connection portion, and the counterpart terminal portion is formed at the insulator portion positioned between a pair of insulator portions connected by the second connection portion among the plurality of insulator portions. The fitting of the terminal portion and the mating terminal portion can be accordingly easily performed.A stator according to a twenty-fifth aspect of the present invention is the stator according to the twenty-fourth aspect, wherein: the insulator portion includes a first insulator portion and a second insulator portion segmented in the axial direction of the stator core; the first connection portion connects the plurality of first insulator portions of each of the insulators to each other; and the second connection portion connects the plurality of first insulator portions in one of the insulators to each other.According to this stator, the plurality of first insulator portions are connected to each other through the second connection portion and the first connection portion in at least one of the plurality of insulators. Accordingly, the rigidity between the plurality of first insulator portions and thus the rigidity of the entire stator after the assembly can be ensured by the second connection portion.A stator according to a twenty-sixth aspect is the stator according to the twenty-fourth aspect, wherein: the insulator portion includes a first insulator portion and a second insulator portion which are segmented in the axial direction of the stator core; the first connection portion connects the plurality of first insulator portions of each of the insulators to each other; and the second connection portion connects the plurality of second insulator portions in one of the insulators to each other.According to this stator, the plurality of first insulator portions are connected by the first connection portion and the plurality of second insulator portions are connected by the second connection portion in at least one of the plurality of insulators. Accordingly, the rigidity between the plurality of first insulator portions and the rigidity between the plurality of second insulator portions can be increased with good balance, and thus the rigidity of the entire stator after assembly can be ensured by the first connection portion and the second connection portion.A stator according to a twenty-seventh aspect of the present invention is the stator of any one of the first to nineteenth aspects, wherein: the plurality of insulators include a locking structure for positioning with respect to each other; the core configuration portion includes a tooth portion extending along the radial direction of the stator core and a yoke configuration portion formed at a leading end portion of the tooth portion; the insulator portions each include a yoke configuration portion insulator portion covering the yoke configuration portion; and the locking structure includes a terminal portion formed at a first one of the adjacent ones of the yoke configuration portion insulator portions and a mating terminal portion that mates with the terminal portion and that is formed at a second one of the adjacent yoke configuration portion insulator portions.According to this stator, the terminal portion is formed at the first of the adjacent yoke configuration portion insulator portions, and the counter terminal portion is formed at the second of the adjacent yoke configuration portion insulator portions. The fitting of the terminal portions and the mating terminal portions can be accordingly easily performed.A stator according to a twenty-eighth aspect of the present invention is the stator according to any one of the first to nineteenth aspects, further comprising a locking structure that fixes the plurality of first connection portions to each other.This stator includes the locking structure that fixes the plurality of first connection portions to each other. Accordingly, the rigidity between the plurality of first connection portions and thus the rigidity of the entire stator after the assembly can be ensured by fastening the plurality of first connection portions to each other with the lock structure.A stator according to a twenty-ninth aspect of the present invention is the stator according to any one of the first to twenty-eight aspects, wherein: a plurality of independently shaped groups of stator configuration sections are configured by mounting the plurality of core configuration sections on the respective plurality of insulators; in each of the plurality of stator configuration section groups, the plurality of core configuration sections are arranged so as to form a gap corresponding to at least one core configuration section between adjacent core configuration sections; the plurality of stator configuration section groups are arranged such that, in a mutually mounted state, a core configuration section of another group is arranged in the gap; and each of the plurality of coil wires is continuously formed from one end to the other end and includes a crossing wire that connects the plurality of winding sections to each other.This stator in the above-described configuration is manufactured using the following processes, for example. Namely, first, the core configuration sections are integrated with the insulator sections of each of the insulators, forming a sub-assembly for each of the plurality of groups. Next, the coil wire is wound on each of the tooth portions of each of the subassemblies from the radially outer direction using a wound rotor machine, forming a stator configuration portion for each of the plurality of groups. Then, the plurality of stator configuration sections are assembled together to form the stator. By the above processes, the stator is manufactured.In each of the plurality of stator configuration section groups, the plurality of core configuration sections are arranged such that a gap corresponding to at least one core configuration section exists between adjacent core configuration sections.Accordingly, as described above, the rotary winder can be prevented from interfering with the other core configuration sections when winding the coil wire on each of the tooth sections of each of the subassemblies from the radially outer direction using a rotary winder.Further, each of the plurality of coil wires is continuously formed from one end to the other end, and includes the crossing wire that connects together the plurality of winding portions arranged along the first connection portion. Loosening of the winding portion from the tooth portion can be accordingly avoided.A stator according to a thirtieth aspect of the present invention is the stator of the twenty-ninth aspect, wherein: of the crossing wires, at least one of the crossing wires connected to a winding start end portion of the winding portion and one of the crossing wires connected to a winding end portion of the winding portion cross over a connection environment between the first connection portion and the insulator portion.According to this stator, at least one of the crossing wires connected to the winding start end portion of the winding portion and one of the crossing wires connected to the winding end end portion of the winding portion crosses over the connection environment between the first connection portion and the insulator portion. Loosening of the winding portion from the tooth portion can be accordingly prevented even more effectively.A stator according to a thirty-first aspect of the present invention is the stator of the thirtieth aspect, wherein: each of the insulator portions includes an insulator main body portion which is integrated with the core configuration portion and which insulates between the tooth portion and the winding portion, and an extending portion which together connects the insulator main body portion and the first connection portion; and a radial direction extending portion to the extending portion is formed to extend in a radial direction from the stator configuration portion from the first connection portion; and a crossing portion between the crossing wire connected to the winding start end portion of the winding portion and the crossing wire connected to the winding end portion of the winding portion is disposed at a position overlapping with the extending portion in the radial direction when viewed along the axial direction of the stator configuration portion.According to this stator, the radial direction extending portion extending in the radial direction of the stator configuration portion is formed at the extending portion that together connects the insulator main body portion and the first connection portion, and the above-mentioned intersecting portion is disposed at the position overlapping with the radial direction extending portion when viewed along the axial direction of the stator configuration portion. Accordingly, loosening of the winding portion from the tooth portion can be more effectively prevented due to the above-mentioned crossing wires crossing in a space ensured by the radial direction extending portion.A stator according to a thirty-second aspect of the present invention is the stator of the thirtieth aspect, wherein: each of the insulator portions includes an insulator main body portion which is integrated with the core configuration portion and which insulates between the tooth portion and the winding portion, and an extending portion which together connects the insulator main body portion and the first connection portion; and an axial direction extending portion is formed at the extending portion to extend in an axial direction from the stator configuration portion from the first connection portion; and a crossing portion between the crossing wire connected to the winding start end portion of the winding portion and the crossing wire connected to the winding end portion of the winding portion is disposed at a position overlapping with the axial direction extending portion when viewed along the radial direction of the stator configuration portion.According to this stator, the axial direction extending portion extending in the axial direction of the stator configuration portion is formed at the extending portion which together connects the insulator main body portion and the first connection portion, and the above-mentioned intersecting portion is disposed at the position overlapping with the axial direction extending portion when viewed along the radial direction of the stator configuration portion. Accordingly, loosening of the winding portion from the tooth portion can be more effectively prevented due to the above-mentioned crossing wires crossing in a space secured by the axial direction extending portion.A stator according to a thirty-third aspect of the present invention is the stator of any one of the first to thirty-second aspects, wherein the tooth portion protrudes from the yoke configuration portion toward the inner side of the radial direction of the yoke.Accordingly, even if the tooth portion protrudes from the yoke configuration portion toward the inner side of the yoke radial direction, the coil wire can be wound on each of the tooth portions of each of the subassemblies from a radially outer direction using a coil wire winding machine because the yoke is configured by the plurality of yoke configuration portions segmented in the yoke circumferential direction.A stator according to a thirty-fourth aspect of the present invention is the stator of any one of the first to thirty-third aspects, wherein: the insulator portion includes an extension side wall portion extending along an axial direction of the stator configuration portion; and in each of the plurality of stator configuration portion groups, with respect to an imaginary line extending in a tangential direction of the stator configuration portion to pass through the extension side wall portion, an end in the circumferential direction of the yoke configuration portion is positioned from a first core configuration portion so as to be positioned on the opposite side to a second core configuration portion disposed adjacent to the first core configuration portion, the imaginary line being provided between the first and second core configuration portions.According to this stator, in each of the plurality of stator configuration section groups, with respect to the imaginary line extending in a tangential direction to the stator configuration section to pass through the extension side wall section, the end in the circumferential direction of the yoke configuration section of the first core configuration section is positioned so as to be adjacent to the first core configuration section on the opposite side to the second core configuration section, the imaginary line being provided between the first and second core configuration sections. Accordingly, as described above, even when a coil wire winding machine is employed for winding the coil wire on each of the tooth portions of each of the subassemblies from the radially outer direction, the coil wire winding machine can be prevented from interfering with other core configuration portions, and particularly with the circumferential direction ends of the yoke configuration portion thereof.A stator according to a thirty-fifth aspect of the present invention is the stator of any one of the first to thirty-second aspects, wherein the plurality of tooth portions project from the yoke configuration portion toward the outer radial direction of the yoke.Accordingly, since the distance between leading end portions of the adjacent tooth portions can be secured when the tooth portions project from the yoke configuration portion toward the outer radial direction of the yoke, a coil wire winding machine for winding the coil wire on each of the tooth portions from the radially outer direction can be employed.A stator according to a thirty-sixth aspect of the present invention is the stator of the thirty-fifth aspect, wherein adjacent yoke configuration sections are fitted to each other by recess-and-projection shaped fitting sections.Accordingly, the rigidity of the yoke can be increased when the adjacent yoke configuration sections are fitted together with the recess-projection shaped fitting sections.A stator according to a thirty-seventh aspect of the present invention is the stator of any one of the thirty-third to thirty-sixth aspects, wherein the winding portions are deformed in compression by press forming.According to this stator, the coil portions are deformed in compression by press forming. Accordingly, widening of the winding portions can be suppressed, and high density arrangement of the coil wires can be achieved, and a space for press working by a press can be secured.A stator according to a thirty-eighth aspect of the present invention is the stator of any one of the thirty-third to thirty-seventh aspects, wherein: each of the plurality of stator configuration section groups is configured by a combination of mutually different phases; in each of the stator configuration sections, the plurality of tooth sections are arranged at equal intervals to each other; and of the plurality of winding sections, a pair of winding sections that are opposed to each other across an axis of a stator configuration section is formed of the same coil wire and is formed by winding in a reverse direction to each other.According to this stator, in each of the stator configuration sections, the plurality of tooth sections are arranged at equal intervals to each other, so that the intervals between the plurality of tooth sections can be respectively secured. Accordingly, the coil wire can be easily wound on the tooth portions.A stator according to a thirty-ninth aspect of the present invention is the stator of the thirty-eighth aspect, wherein: a winding portion wound in a loosening direction on the tooth portion of the pair of winding portions and a crossing wire between the pair of winding portions are connected to each other by a guide portion led out from the tooth portion; a protrusion portion to which the guide portion is anchored is formed on the insulator; and the winding portion wound in a loosening direction on the tooth portion of the pair of winding portions is prevented from loosening by the guide portion anchored on the protrusion portion.According to this stator, the winding portion wound on the tooth portion in the loosening direction is prevented from loosening by the guide portion anchored to the protrusion portion. Loosening of the winding portion wound on the tooth portion in the loosening direction can be accordingly avoided.A brushless motor according to a forty-th aspect of the present invention includes the stator according to any one of the first to thirty-ninth aspects, and a rotor that rotates in a rotating magnetic field generated by the stator.According to this brushless motor, a compact size and low cost can be realized by employing the stator according to any one of the first to forty-first aspects.A forty-first aspect of the present invention is a method of manufacturing the stator according to any one of the first to thirty-ninth aspects, comprising: a sub-assembly forming process in which the core configuration sections are integrated with the insulator sections of each of the insulators to form a sub-assembly for each of the plurality of groups; a stator configuration section forming process in which the stator configuration sections for each of the plurality of groups are formed by winding the coil wire on each of the tooth sections of each of the sub-assemblies from a radially outer direction of the stator configuration section using a coil wire winding machine; and a stator configuration process forming a stator by mounting the plurality of stator configuration sections together.According to this method of manufacturing a stator, the subassemblies are formed for each of the plurality of groups, and the coil wire is wound on each of the tooth portions of each of the subassemblies from the radial direction from the outside of the stator configuration portion using the coil wire winding machine. Accordingly, there is no need to secure a space between the tooth portions as would be required when inserting a nozzle machine. A high density arrangement of the coil wire becomes accordingly possible, and a compact size for the stator can be achieved.Further, the subassemblies are formed for each of the plurality of groups, and the coil wire is wound on each of the tooth portions of each of the subassemblies from a radial direction from the outside. An increased speed in the coil wire winding process is realized accordingly, and therefore, a reduction in the cost of the stator due to a reduction in the number of equipment units can be realized.A method of manufacturing a stator according to a forty-second aspect of the present invention is the method of manufacturing a stator according to the forty-first aspect, further comprising: a compression process between the process of forming the stator configuration portion and the stator configuration process that presses and deforms the winding portions in each of the plurality of stator configuration portion groups into compression.According to this method of manufacturing a stator, in the compression process, the winding portions are pressed and deformed into compression. Accordingly, widening of the winding portions can be suppressed, and high density arrangement of the coil wires can be achieved, and a space for press working by a press can be secured.A method for manufacturing a stator according to a forty-third aspect of the present invention is the method for manufacturing a stator of the forty-second aspect, wherein in the compressing process, the winding portions are pressed from a direction orthogonal to an axial direction of a tooth portion.According to this method of manufacturing a stator, in the compression process, the winding portions are pressed from a direction orthogonal to the axial direction of the tooth portion. Accordingly, widening of the winding portions can be further suppressed, and high-density arrangement of the coil wires can be achieved.A method for manufacturing a stator according to a forty-fourth aspect of the present invention is the method for manufacturing a stator of the forty-second aspect or the forty-third aspect, wherein in the compressing process, the winding portions are pressed from both sides of the direction orthogonal to the axial direction of the tooth portion.According to this method of manufacturing a stator, in the compression process, the winding portions are pressed from both sides of the direction orthogonal to the axial direction of the tooth portion. Accordingly, the coil portions can be further deformed into compression.A method of manufacturing a stator according to a forty-fifth aspect of the present invention is the method of manufacturing a stator according to the forty-second aspect, wherein in the compressing process, the winding portions are pressed such that the pressing direction on the winding portions is a tangential direction to the respective stator configuration portions.According to this method of manufacturing a stator, in the compression process, the winding portions are pressed such that the pressing direction on the winding portions is a tangential direction to the respective stator configuration portions. Here, in each of the plurality of stator configuration section groups, the plurality of core configuration sections are arranged such that at least one gap corresponding to a stator configuration section is present between adjacent ones of the plurality of core configuration sections. The coil portions can be pressed accordingly while still preventing interference between the press and the core forming portions.A method according to a forty-sixth aspect of the present invention for manufacturing a stator according to the twelfth aspect includes: an installation and cutting operation that uses an insulator in which a plurality of first insulator portions, second insulator portions, and bridging portions have been integrated together, and each of the bridging portions connects together the first insulator portions and the second insulator portions, installs a core configuration portion for forming a stator core to a portion of the first insulator portion and the second insulator portion and cuts off the bridging portion; a position-aligning operation that performs position-aligning between the other portion of the first insulator portion and the second insulator portion and the core configuration portion by moving at least a portion of the first insulator portion and the second insulator portion with respect to the other portion; an installing process installing the other portion from the first insulator portion and the second insulator portion to the core configuration portion; and a coil wire winding process forming a coil wire winding portion with a coil wire on the core configuration portion by winding the coil wire on the core configuration portion with the first insulator portion and the second insulator portion interposed therebetween.According to this method of manufacturing a stator, an insulator is employed in which the plurality of first insulator portions, second insulator portions, and bridging portions have been integrated together, and the bridging portions connect together the first insulator portions and the second insulator portions. Thus, a reduction in the number of components required for the stator assembly can be achieved as compared with the cases where an insulator is inserted, in which the first insulator portions and second insulator portions are separately formed.A method of manufacturing a stator according to a forty-seventh aspect of the present invention is the method of manufacturing a stator of the forty-sixth aspect, wherein in the installation and cutting operation, the bridging portion is cut after the core configuration portion is installed at the one of the first insulator portion and the second insulator portion.According to this method of manufacturing a stator, in the installation and cutting operation, the bridging portion is cut after the core forming portion is installed at the one of the first insulator portion and the second insulator portion. Accordingly, for example, when installing the core configuration portion to the one of the first insulator portion and the second insulator portion, the entire insulator including the first insulator portion and the second insulator portion can be inserted into a jig in one operation when the insulator is placed into a jig. Accordingly, a reduction in the number of operations for inserting the insulator into the jig can be achieved as compared with the cases in which the bridging portion is cut off before the core forming portion is installed at the one of the first insulator portion and the second insulator portion.A method of manufacturing a stator according to a forty-eighth aspect of the present invention is the method of manufacturing a stator of the forty-sixth aspect or the forty-seventh aspect, wherein, as the insulator, the first insulator portion and the second insulator portion each include a tooth portion insulator portion and a yoke configuration portion insulator portion that respectively cover a tooth portion and a yoke configuration portion formed at the core configuration portion, and the bridging portion together connects the yoke configuration portion insulator portions of the first insulator portion and the second insulator portion.The tooth portion of the core configuration portion is a location where the coil wire is wound to form a coil wire winding portion. Further, for example, a guide portion that guides the terminal portion of the coil wire is formed on a base end side of the tooth portion of the core configuration portion.With respect to this point, according to this method of manufacturing a stator, the bridging portion is inserted into the insulator to connect together the yoke configuration portion insulator portions of the first insulator portions and the second insulator portions. It is accordingly possible to prevent the provided bridging portion from causing adverse influence on, for example, the coil wire winding portion and the guide portion.Brief Description of the DrawingsEmbodiments of the present invention will be described in detail based on the following figures, wherein: FIG. 1 is a perspective view illustrating a stator according to a first exemplary embodiment of the present invention; FIG. 2A is a perspective view illustrating a U-phase stator configuration portion illustrated in FIG. 1 ; FIG. 2B is a perspective view illustrating a stator configuration portion of a V-phase illustrated in FIG. 1 ; FIG. 2C is a perspective view illustrating a stator configuration portion of a W phase illustrated in FIG. 1 ; FIG. 3A is a perspective view illustrating a process in which the plurality of stator configuration sections illustrated in FIG. 1 are assembled together; FIG. 3B is a perspective view illustrating a state in which mounting has advanced more than in FIG. 3A ; FIG. 4 is a cross-sectional view illustrating a schematic configuration of a brushless motor provided with the stator illustrated in FIG. 1 ; FIG. 5 is a drawing for explaining winding of a coil wire by a wing winding machine; FIG. 6 is a drawing for explaining the plurality of connection patterns of coil wires applicable to a stator according to the first exemplary embodiment of the present invention; FIG. 7 is a perspective view illustrating a stator according to a second exemplary embodiment of the present invention; FIG. 8 is a perspective view illustrating a stator configuration portion of a U-phase illustrated in FIG. 7 ; FIG. 9 is a perspective view illustrating a mounted state of a control circuit portion to the stator illustrated in FIG. 7 ; FIG. 10 is a perspective view illustrating a first modified example of the stator illustrated in FIG. 7 ; FIG. 11 is an enlarged perspective view illustrating relevant portions of a second modified example of the stator illustrated in FIG. 7 ; FIG. 12 is an enlarged perspective view illustrating relevant portions of a third modified example of the stator illustrated in FIG. 7 ; FIG. 13 is an enlarged perspective view illustrating relevant portions of a fourth modified example of the stator illustrated in FIG. 7 ; FIG. 14 is a perspective view illustrating a fifth modified example of the stator illustrated in FIG. 7 ; FIG. 15 is a drawing illustrating a first modified example of a stator according to the first exemplary embodiment; FIG. 16 is a drawing illustrating a second modified example of a stator according to the first exemplary embodiment; FIG. 17 is a drawing illustrating a third modified example of a stator according to the first exemplary embodiment; FIG. 18A is a plan view illustrating a first group of the stator configuration sections illustrated in FIG. 17 ; FIG. 18B is a plan view illustrating a second group of the stator configuration sections illustrated in FIG. 17 ; FIG. 18C is a plan view illustrating a third group of the stator configuration sections illustrated in FIG. 17 ; FIG. 19 is a side sectional view of a motor pump to which a brushless motor according to the second exemplary embodiment of the present invention is applied; FIG. 20A is a side cross-sectional view of a plurality of first connection portions illustrated in FIG. 1 ; FIG. 20B is a side cross-sectional view of a first modified example of a plurality of first connection portions illustrated in FIG. 10A ; FIG. 20C is a side cross-sectional view of a second modified example of a plurality of first connection portions illustrated in FIG. 20A ; FIG. 21 is a perspective view illustrating a stator according to a third exemplary embodiment of the present invention; FIG. 22A is an exploded perspective view illustrating a U-phase stator configuration portion illustrated in FIG. 21 ; FIG. 22B is an exploded perspective view illustrating a V-phase stator configuration portion illustrated in FIG. 21 ; FIG. 22C is an exploded perspective view illustrating a W-phase stator configuration portion illustrated in FIG. 21 ; FIG. 23A is a plan view illustrating the insulator illustrated in FIG. 22A ; FIG. 23B is a plan view illustrating the insulator illustrated in FIG. 22B ; FIG. 23C is a plan view illustrating the insulator illustrated in FIG. 22C ; FIG. 24A is a drawing illustrating the insulator illustrated in FIG. 22A inserted into a jig and a plurality of core configuration sections in a mounted state to the second insulator sections; FIG. 24B is a drawing illustrating cutting of the bridging portion in the insulators illustrated in FIG. 24A; FIG. 24C is a drawing illustrating the insulators illustrated in FIG. 24B with portions other than the second insulator portions that have been raised and the second insulator portions that have been lowered; FIG. 24D is a drawing illustrating the insulators illustrated in FIG. 24C in a state with portions other than the second insulator portions which have been lowered and the first insulator portions in a mounted state to the core configuration portions; FIG. 24E is a drawing illustrating coil wires wound on the core configuration portions illustrated in FIG. 24D ; FIG. 25 is a drawing illustrating a modified example of insulators of the third exemplary embodiment; FIG. 26A is a drawing illustrating the insulators illustrated in FIG. 25 inserted into a jig and a plurality of core configuration sections in a state installed on the second insulator sections; FIG. 26B is a drawing illustrating the cutting of bridging portions in the insulators illustrated in FIG. 26A; FIG. 26C is a drawing illustrating the insulators illustrated in FIG. 26B with portions other than the second insulator portions that have been raised and the second insulator portions that have been lowered; FIG. 26D is a drawing illustrating the insulators illustrated in FIG. 26C in a state with portions other than the second insulator portions which have been lowered and the first insulator portions in an installed state at the core configuration portions; FIG. 27 is a perspective view illustrating a stator according to a fourth exemplary embodiment of the present invention; FIG. 28A is an exploded perspective view illustrating a U-phase stator configuration portion illustrated in FIG. 27 ; FIG. 28B is an exploded perspective view illustrating a V-phase stator configuration portion illustrated in FIG. 27 ; FIG. 28C is an exploded perspective view illustrating a W-phase stator configuration portion illustrated in FIG. 27 ; FIG. 29 is a perspective view illustrating a locking structure of the fourth exemplary embodiment of the present invention; FIG. 30 is a perspective view illustrating a process of assembling a plurality of stator configuration sections illustrated in FIG. 27 ; FIG. 31 is a perspective view illustrating a modified example of an insulator of the fourth exemplary embodiment of the present invention; FIG. 32 is a perspective view illustrating a modified example of insulators of the fourth exemplary embodiment of the present invention; FIG. 33 is a perspective view illustrating a modified example of insulators of the fourth exemplary embodiment of the present invention; FIG. 34 is a drawing illustrating a locking structure of a fifth exemplary embodiment of the present invention; FIG. 35 is a drawing illustrating a modified example of a locking structure of the fifth exemplary embodiment of the present invention; FIG. 36 is a drawing illustrating a modified example of a locking structure of the fifth exemplary embodiment of the present invention; FIG. 37 is a drawing illustrating a modified example of a locking structure of the fifth exemplary embodiment of the present invention; FIG. 38 is a drawing illustrating a locking structure of a sixth exemplary embodiment of the present invention; FIG. 39 is a perspective view illustrating a stator according to a seventh exemplary embodiment of the present invention; FIG. 40A is a perspective view illustrating a U-phase stator configuration portion illustrated in FIG. 39 ; FIG. 40B is a perspective view illustrating a stator configuration portion of a V-phase illustrated in FIG. 39 ; FIG. 40C is a perspective view illustrating a stator configuration portion of a W phase illustrated in FIG. 39 ; FIG. 41A is a perspective view illustrating a process in which a plurality of stator configuration sections illustrated in FIG. 39 are assembled to each other; FIG. 41B is a perspective view illustrating a state in which the mounting has advanced more than in FIG. 41A ; FIG. 42 is a cross-sectional view illustrating a schematic configuration of a brushless motor provided with the stator illustrated in FIG. 39 ; FIG. 43 is a perspective view illustrating a modified example of a coil wire illustrated in FIG. 39 ; FIG. 44 is a perspective view illustrating a stator according to an eighth exemplary embodiment of the present invention; FIG. 45A is a perspective view illustrating a U-phase stator configuration portion illustrated in FIG. 44 ; FIG. 45B is a perspective view illustrating a stator configuration portion of a V-phase illustrated in FIG. 44 ; FIG. 45C is a perspective view illustrating a stator configuration portion of a W phase illustrated in FIG. 44 ; FIG. 46A is a perspective view illustrating a process in which a plurality of stator configuration sections illustrated in FIG. 44 are assembled to each other; FIG. 46B is a perspective view illustrating a state in which the mounting has advanced more than in FIG. 46A ; FIG. 47 is a cross-sectional view illustrating a schematic configuration of a brushless motor provided with the stator illustrated in FIG. 44 ; FIG. 48 is a plan view for explaining winding of a coil wire using a vane winding machine; FIG. 49 is a plan view for explaining a manner in which a coil wire is pressed using a press; FIG. 50 is an extended range view for explaining a manner in which a coil portion is pressed; FIG. 51 is an exploded perspective view illustrating a stator according to a ninth exemplary embodiment of the present invention; FIG. 52 is a plan view illustrating an assembled state of the stator illustrated in FIG. 51 ; FIG. 53 is a plan view illustrating a brushless motor provided with a stator according to a tenth exemplary embodiment of the present invention; FIG. 54A is a plan view illustrating a first group of a stator configuration portion illustrated in FIG. 53 ; FIG. 54B is a plan view illustrating a second group of a stator configuration portion illustrated in FIG. 53 ; FIG. 54C is a plan view illustrating a third group of a stator configuration portion illustrated in FIG. 53 ; FIG. 55 is an enlarged plan view of relevant portions of the stator illustrated in FIG. 53 ; and FIG. 56 is a drawing for explaining winding of a coil wire in a stator according to a comparative example.DESCRIPTION OF THE INVENTIONFirst Exemplary Embodiment of the Present InventionExplanation will first be made on a first exemplary embodiment of the present invention with reference to FIGS. 1 to 4.A stator 10 according to the first exemplary embodiment illustrated in FIG. 1 is a stator employed in an inner rotor type brushless motor, and is configured to include a U-phase stator configuration portion 12U, a V-phase stator configuration portion 12V, and a W-phase stator configuration portion 12W, as illustrated in FIGS. 2A to 2C.As illustrated in FIG. 2A, the U-phase stator configuration section 12U is configured with a plurality of core configuration sections 14U, a coil wire 16U, and an insulator 18U. The plurality of nucleation portions 14U configures a core 20 together with the plurality of V-phase nucleation portions 14V and the plurality of W-phase nucleation portions 14W, which will be described later (see FIG. 1 for each). The core configuration sections 14U each include a plurality of yoke configuration sections 22U and a plurality of tooth sections 24U.The plurality of yoke configuration sections 22U configure an annular yoke 40 together with the V-phase yoke configuration sections 22V and the W-phase yoke configuration sections 22W described later (see FIG. 1 for each), and are each shaped in a circular arc shape. The plurality of tooth portions 24U are integrally formed with the respective yoke configuration portions 22U, and project from the yoke configuration portions 22U toward a radial direction inward of the yoke 40 (see FIG. 1 ).The coil wire 16U configures the U-phase and includes a plurality of winding portions 26U and a plurality of crossing wires 28U. The plurality of winding portions 26U are concentrically wound on the tooth portions 24U with the insulator portions 32U described later interposed therebetween. The winding portions 26U are each connected to each other by the plurality of crossing wires 28U. The crossing wires 28U are connected to the plurality of winding portions 26U and are wound (wound) around the outer circumferential surface of a first connection portion 34U formed on the insulator 18U described later. Terminal portions 30U on both end sides of the coil wire 16U lead out from the tooth portions 24U to a first axial direction side (the arrow Z 1 side) of the stator 10.The insulator 18U is made of a resin and integrally includes a plurality of insulator portions 32U and the first connection portion 34U. The number of the plurality of insulator portions 32U provided is the same as the number of the plurality of tooth portions 24U mentioned above. The plurality of insulator portions 32U protrude on one side of yoke configuration portions 22U (one side of the yoke 40 in FIG. 1 ) with respect to the first connection portion 34U, which will be described later. Each of the plurality of insulator portions 32U includes an insulator main body portion 32U 1 and an extending portion 32U 2. The insulator main body portions 32U 1 are integrated with respective surfaces of the above-mentioned plurality of core configuration portions 14U, for example, by integrated casting or locked mounting. The insulator main body portions 32U 1 insulate between the tooth portions 24U formed at the core configuration portions 14U and the winding portions 26U. The extending portions 32U 2 are positioned further inward toward the radial direction than the core configuration portions 14U, and extend from the insulator main body portion 32U 1 toward the first axial direction side (the arrow Z 1 side) of the yoke 40.The first connection portion 34U is disposed offset with respect to the plurality of insulator portions 32U on the first axial direction side of the yoke 40 (the arrow Z 1 side) and is formed in a ring shape. The first connection portion 34U collectively connects the plurality of insulator portions 32U (or more specifically, extension end portions (end portions on the Z 1 side) of the extending portions 32U 2 in the plurality of insulator portions 32U) and is positioned further to the radially inward direction of the yoke 40 (the radial direction of the inner side of the yoke 40 illustrated in FIG. 1 ) than the core configuration portions 14U. A plurality of projection-shaped holding portions 36U project toward a radial direction of the outside of between the plurality of insulator portions 32U on the outer circumferential surface of the first connection portion 34U. The holding portions 36U hold the crossing wires 28U mentioned above from a second axial direction side (arrow Z 2 side) of the first connection portion 34U. A plurality of recesses 38U opening toward the second axial direction side (arrow Z 2 side) are formed in the first connection portion 34U between the plurality of insulator portions 32U.The V-phase stator configuration portion 12V illustrated in FIG. 2B basically has the same configuration as the U-phase stator configuration portion 12U mentioned above. Namely, the V-phase stator configuration portion 12V is configured to include the plurality of V-phase yoke configuration portions 22V, a plurality of tooth portions 24V, a coil wire 16V, and an insulator 18V. The plurality of yoke configuration sections 22V, the plurality of tooth sections 24V, the coil wire 16V, and the insulator 18V correspond to the above-mentioned plurality of yoke configuration sections 22U, the plurality of tooth sections 24U, the coil wire 16U, and the insulator 18U (see FIG. 2A for each). Note that, in the V-phase stator configuration portion 12V, a first connection portion 34V is formed in a ring shape and is formed with a smaller diameter than the above-mentioned first connection portion of a U-phase 34U (see FIG. 2A ). Further, holding portions 36V hold the crossing wires 28V from the first axial direction side (the arrow Z 1 side) of the first connection portion 34V and are positioned more inward toward the radial direction than the core configuration portions 14V.Each of the plurality of insulator portions 32V further includes an insulator main body portion 32V 1 and an extending portion 32V 2. The insulator main body portions 32V 1 are integrated with the respective surfaces of the plurality of core configuration portions 14V mentioned above, for example, by integral casting or interlocking mounting. The insulator main body portions 32V 1 insulate between the tooth portions 24V formed at the core configuration portions 14V and the winding portions 26V. The extending portions 32V 2 are positioned further inward toward the radial direction than the core configuration portions 14V, and extend from the insulator main body portions 32V 1 along a circumferential direction of the yoke 40. The first connection portion 34V is provided on the first axial direction side (the arrow Z 1 side) of the plurality of insulator portions 32V. The first connection portion 34V is formed in a ring shape, connects together the plurality of insulator portions 32V, and is positioned more inward toward the radial direction than the core configuration portions 14V.The W-phase stator configuration section 12W illustrated in FIG. 2C basically has the same configuration as the U-phase stator configuration section 12U mentioned above. Namely, the W-phase stator configuration portion 12W is configured to include the plurality of W-phase yoke configuration portions 22W, a plurality of tooth portions 24W, a coil wire 16W, and an insulator 18W. The plurality of yoke configuration sections 22W, the plurality of tooth sections 24W, the coil wire 16W, and the insulator 18W correspond to the above-mentioned plurality of yoke configuration sections 22U, the plurality of tooth sections 24U, the coil wire 16U, and the insulator 18U (see FIG. 2A for each). Note that, in the W-phase stator configuration portion 12W, a first connection portion 34W is formed in a ring shape and is formed with a smaller diameter than the above-mentioned first connection portion 34V (see FIG. 2B ). The above-mentioned recesses (see the recesses 38U in FIG. 2A ) are omitted from the first connection portion 34W. Further, the holding portions 36W hold the crossing wires 28W from the first axial direction side (the arrow Z 1 side) of the first connection portion 34W and are positioned more inward toward the radial direction than the core configuration portions 14W.Further, each of the plurality of insulator portions 32W includes an insulator main body portion 32W 1 and an extending portion 32W 2. The insulator main body portions 32W 1 are integrated with respective surfaces of the plurality of core configuration portions 14W mentioned above, for example, by integral casting or interlocking mounting. The insulator main body portions 32W 1 insulate between the tooth portions 24W formed at the core configuration portions 14W and the winding portions 26W. The extending portions 32W 2 are positioned further to the radially inward direction than the core configuration portions 14W and extend from the insulator main body portions 32W 1 toward a radially inward direction from the yoke 40. The first connection portion 34W is formed in a ring shape and connects together the plurality of insulator portions 32W (or more specifically, extension end portions (end portions of the radially inward direction) from the extending portions 32W 2 in the plurality of insulator portions 32W), and is positioned further to the radially inward direction than the core configuration portions 14W.As illustrated in FIG. 1, the plurality of stator configuration sections 12U, 12V, 12W, as will be explained later in detail, are assembled together to configure the stator 10. In the stator 10, the annular yoke 40 is further configured by the plurality of yoke configuration portions 22U, 22V, 22W. In other words, the yoke 40 is segmented in the circumferential direction into the plurality of yoke configuration sections 22U, 22V, 22W. Each of the plurality of yoke configuration sections 22U, 22V, 22W is fitted between a respective pair of yoke configuration sections adjacent on both sides.The plurality of first connecting portions 34U, 34V, 34W are provided at the radially inward direction of the yoke 40. The plurality of first connecting portions 34U, 34V, 34W are provided such that gaps exist therebetween in the radial direction and the axial direction of the yoke 40, and are provided coaxially with the yoke 40. The V-phase holding portions 36V are fitted against an inner circumferential surface of the first U-phase connecting portion 34U, and the W-phase holding portions 36W are fitted against an inner circumferential surface of the first V-phase connecting portion 34V. The plurality of first connecting portions 34U, 34V, 34W are thus maintained in a state separated from each other in the radial direction. Namely, the holding portions 36U, 36V, 36W are provided between the plurality of first connection portions 34U, 34V, 34W in the radial direction, and serve as protrusion-shaped spacers to hold the plurality of first connection portions 34U, 34V, 34W in a state separated from each other in the radial direction.Further, as mentioned above, in the state in which the plurality of first connection portions 34U, 34V, 34W are provided such that gaps exist therebetween in the radial direction of the yoke 40, the V-phase crossing wires 28V pass through the inside of the recesses 38U formed at the first U-phase connection portion 34U (accommodated inside the recesses 38U), and the W-phase crossing wires 28W pass through the inside of the recesses 38U formed at the first U-phase connection portion 34U and the inside of the recesses 38V, These are formed at the first joining portion of a V phase 34V (housed inside the recesses 38U and the recesses 38V (see FIG. 3B )). The recesses 38U, 38V are examples of a housing portion of the present invention.As illustrated in FIG. 4, the stator 10 configured as described above configures an inner rotor type brushless motor 60 together with a rotor 50 and a housing 70. Note that the brushless motor 60 is, for example, a motor of 8 poles and 12 slots (8-pole 12 slot motor).Explanation follows regarding a method for manufacturing the stator 10 configured as described above.First, as illustrated in FIG. 2A, the core configuration sections 14U are integrated with the insulator sections 32U of the insulator 18U to form a U-phase sub-assembly 42U configured of the insulator 18U and the plurality of core configuration sections 14U. Similarly, as illustrated in FIG. 2B, the core configuration sections 14V are integrated with the insulator sections 32V of the insulator 18V to form a V-phase sub-assembly 42V configured of the insulator 18V and the plurality of core configuration sections 14V. Further, as illustrated in FIG. 2C, the core configuration sections 14W are integrated with the insulator sections 32W of the insulator 18W to form a W-phase sub-assembly 42W configured of the insulator 18W and the plurality of core configuration sections 14W. The subassemblies 42U, 42V, 42W are thus formed for each of the U phase, the V phase, and the W phase (the process of forming the subassembly).Next, as illustrated in FIG. 2A, a vane winding machine 100 (see FIG. 5 ) is used to wind the coil wire 16U onto each of the tooth portions 24U of the U-phase subassembly 42U from the radial direction from the outside, forming the U-phase stator configuration portion 12U having a plurality of winding portions 26U formed on the subassembly 42U. Note that, as illustrated in FIG. 5, the vane winding machine 100 is configured to include a vane 101 that wraps the coil wires 16 in a circular motion to encircle the periphery of each of the tooth portions 24, a variable shaper 102 that aligns the coil wires 16 wound on the tooth portions 24, and a drive circuit 103 that controls the vane 101 and the variable shaper 102.Similarly, as illustrated in FIG. 2B, the above-mentioned rotary winding machine 100 is used to wind the coil wire 16V onto each of the tooth portions 24V of the V-phase sub-assembly 42V from the radial direction from the outside, forming the V-phase stator configuration portion 12V with a plurality of winding portions 26V formed on the sub-assembly 42V. Further, as illustrated in FIG. 2C, the above-mentioned wound rotary machine 100 is used to wind the coil wire 16W onto each of the tooth portions 24W of the W-phase subassembly 42W from the radial direction from the outside, forming the W-phase stator configuration portion 12W with a plurality of winding portions 26W formed on the subassembly 42W.When this is done, as illustrated in FIG. 2A, the plurality of crossing wires 28U are laid out along the outer circumferential surface of the first connection portion 34U. The plurality of crossing wires 28U are also held from the second axial direction side (arrow Z 2 side) of the first connection portion 34U by the projection-shaped holding portions 36U. Similarly, as illustrated in FIG. 2B, the plurality of crossing wires 28V are laid out along the outer circumferential surface of the first connection portion 34V. The plurality of crossing wires 28V are also held from the first axial direction side (the arrow Z 1 side) of the first connection portion 34V by the projection-shaped holding portions 36V. Further, as illustrated in FIG. 2C, the plurality of crossing wires 28W are laid out along the outer circumferential surface of the first connection portion 34W. The plurality of crossing wires 28W are also held by the first connection portion 34W from the first axial direction side (the arrow Z 1 side) by the projection-shaped holding portions 36W.Further, as illustrated in FIG. 2A, the terminal portions 30U on the both end sides of the coil wire 16U are led out from the tooth portions 24U to the first axial direction side (the arrow Z 1 side) of the stator 10. Similarly, as illustrated in FIG. 2B, the terminal portions 30V on the both end sides of the coil wire 16V are led out from the tooth portions 24V toward the first axial direction side of the stator 10. Further, as illustrated in FIG. 2C, the terminal portions 30W of the two end sides of the coil wire 16W are led out from the tooth portions 24W toward the first axial direction side of the stator 10. The stator configuration sections 12U, 12V, 12W are thus formed for each of the U phase, the V phase, and the W phase (the process of forming the stator configuration section).Then, as illustrated in FIGS. 3A and 3B, in a state in which the V-phase stator configuration portion 12V is offset by a specific angle in a circumferential direction with respect to the W-phase stator configuration portion 12W, the V-phase stator configuration portion 12V is mounted on the W-phase stator configuration portion 12W from the first axial direction side (the arrow Z 1 side). Then, in a state in which the U-phase stator configuration portion 12U is offset by a specific angle in a circumferential direction with respect to the V-phase stator configuration portion 12V, the U-phase stator configuration portion 12U is mounted on the V-phase stator configuration portion 12V and the W-phase stator configuration portion 12W from the first axial direction side (the arrow Z 1 side).When this is done, each of the plurality of yoke configuration sections 22U, 22V, 22W is fitted between a pair of yoke configuration sections, respectively, adjacent to both sides. Further, the V-phase holding portions 36V are fitted against the inner circumferential surface of the first U-phase connecting portion 34U, and the W-phase holding portions 36W are fitted against the inner circumferential surface of the first V-phase connecting portion 34V. The plurality of first connection portions 34U, 34V, 34W are thus held in a state separated from each other in the radial direction by the projection-shaped holding portions 36U, 36V, 36W.Further, when this is done, the V-phase crossing wires 28V pass through the inside of the recesses 38U formed at the first U-phase connection portion 34U, and the W-phase crossing wires 28W pass through the inside of the recesses 38U formed at the first U-phase connection portion 34U and through the inside of the recesses 38V formed at the first V-phase connection portion 34V. The plurality of stator configuration sections 12U, 12V, 12W are thus assembled together to form the stator 10 (stator configuration process). Note that the terminal portions 30U, 30V, 30W are connected by a puzzle bar (IC) or the like which is not shown in the drawings. The stator 10 is accordingly manufactured by the above processes.Explanation follows regarding the operation and advantageous effects of the first exemplary embodiment.Note that in the following explanation, for the sake of simplicity, the letters U, V, W are omitted as the accompaniment numerals to the numerals of each element and each portion when no distinction is made between the U phase, the V phase, and the W phase.According to the stator 10 of the first exemplary embodiment, the yoke 40 is configured by the plurality of yoke configuration sections 22 segmented in the circumferential direction. Therefore, even in a stator used in a so-called inner rotor type brushless motor in which the plurality of tooth portions 24 project inward toward the radial direction from the yoke 40, the subassemblies 42 for each of the U phase, the V phase, and the W phase are formed as described above, and the coil wires 16 can be wound on each of the tooth portions 24 of the subassembly 42 from the radial direction from the outside using the vane winding machine 100 (see FIG. 5 ). Thus, there is no need to ensure a space between the tooth portions 24 as would be required if a nozzle machine were employed, which allows a denser arrangement of the coil wires 16 to be achieved, and allows a more compact stator 10 to be realized.Furthermore, as described above, the yoke 40 is segmented in the circumferential direction into the plurality of yoke configuration sections 22, and thus, for example, the stator 10 can be made more compact in the axial direction as compared to cases where the yoke 40 is segmented into multiple yoke configuration sections in the axial direction.Further, when the vane winding machine 100 is used, since the winding speed of the coil wires 16 is higher than when using a nozzle machine, the process of winding the coil wires 16 can be accelerated, and accordingly, a reduction in the cost of the stator 10 due to a reduction in the number of equipment units can be achieved.Further, the recesses 38U, 38V are formed in the first U-phase connection portion 34U and the first V-phase connection portion 34V to allow the crossing wires 28V, 28W to pass inside. Interference between the first connection portions 34U, 34V and the crossing wires 28V, 28W can thereby be avoided, and the length of the crossing wires 28V, 28W can be prevented from increasing. Accordingly, the stator 10 can be made even more compact and at even lower cost.Further, in the U-phase stator configuration portion 12U, the extending portions 32U 2 are positioned more inward to the radial direction than the core configuration portions 14U. Interference between the blade of the rotary winder and the extending portions 32U 2 and the first connecting portion 34U can be accordingly avoided in winding the coil wire 16U onto the tooth portions 24U from the radially outer direction using the rotary winder.Further, in the V-phase stator configuration portion 12V and the W-phase stator configuration portion 12W, the first connection portions 34V, 34W are respectively positioned more toward the radially inward direction than the core configuration portions 14V, 14W. Accordingly, interference between the blade of the rotary winder and the first connecting portion 34V, 34W can be avoided during winding of the coil wires onto the respective tooth portions 24V, 24W from the radially outer direction using the rotary winder.Each of the first connecting portions 34 includes the holding portions 36 that hold the respective crossing wires 28 laid out on the respective first connecting portion itself. Therefore, for example, as stated above, the crossing wires 28 can be held at the first connection portions 34 by the holding portions 36 when the stator 10 is formed by assembling the plurality of stator configuration portions 12, and thus an efficient operation can be achieved in assembling the plurality of stator configuration portions 12. Furthermore, even after the stator 10 is installed in the brushless motor, the crossing wires 28 are held at the first connection portions 34 by the holding portions 36, and thus chattering of the crossing wires 28 can be prevented, making it possible to suppress the occurrence of noise and errors.The plurality of first connection portions 34 can also be held in a state separated from each other in the radial direction by the projection-shaped holding portions 36. Accordingly, a space for laying out the crossing wires 28 between the plurality of first connection portions 34 can be secured in the radial direction, and rattle of the plurality of first connection portions 34 can also be suppressed. Better operation efficiency can also be achieved in mounting the plurality of first connection portions 34 together than in cases where the plurality of first connection portions 34 are fitted around the entire circumference.The plurality of yoke configuration sections 22 are further integrally formed with the tooth sections 24. Accordingly, magnetic loss at each of the first connecting portions can be suppressed as compared with, for example, a two-piece type core including independent members of a plurality of tooth portions, guide end portions connected together with thinned bridging portions, and a yoke connecting together base end portions of the tooth portions. Namely, magnetic loss occurs at three locations in a two-piece type core, namely, at the bridging portions between the leading end portions of adjacent pairs of tooth portions, at the base end portions of pairs of tooth portions, and at first connecting portions of the yoke. In contrast, in the stator 10 of the present exemplary embodiment, magnetic loss occurs only at a location, the first connection portion, between adjacent pairs of yoke configuration portions 22, making it possible to reduce the magnetic loss. It is accordingly possible to achieve even greater compactness and reduction in weight.Further, a circular bar for connecting the plurality of winding portions 26 is not required because the plurality of winding portions 26 are connected to each other by the crossing wires 28. A reduction in the number of components can be effected accordingly, thereby also enabling a reduction in the costs.Further, the crossing wires 28 may be wound on each of the first connection portions 34, and thus the winding speed of the coil wires 16 may be increased, and an operation of aligning the crossing wires 28 after winding the coil wires 16 may be omitted. As a result, a reduction in cost can also be achieved.Furthermore, the brushless motor according to the first exemplary embodiment is provided with the stator 10 as described above, and thus greater compactness and reduction in cost can also be achieved.Further, in the method of manufacturing the stator according to the first exemplary embodiment, the subassemblies 42 are formed for each of the U phase, the V phase, and the W phase, and the coil wires 16 are wound on each of the tooth portions 24 of the subassemblies 42 from the radially outer direction using the field winding machine 100. Accordingly, there is no need to ensure a space between the tooth portions 24 as would be required when a nozzle machine is used. A denser arrangement of the coil wires 16 is thereby made possible, and a more compact stator 10 can be realized.Further, due to the use of the vane winding machine 100, the winding speed of the coil wires 16 is higher than when a nozzle machine is used, and thus the process of winding the coil wires 16 can be accelerated, and thereby a reduction in the cost of the stator 10 can be achieved due to the reduction in the number of equipment units.The first connecting portions 34 are provided coaxially with the yoke 40, which makes it possible to simplify the structure. The holding portions 36 are also formed in protrusion shapes, thereby enabling the structure to be simplified.Explanation follows regarding modified examples of the first exemplary embodiment.In the first exemplary embodiment, the brushless motor is configured as, for example, a motor having 8 poles and 12 slots, but a configuration may be made with a motor having another combination of the number of poles and the number of slots.The connecting method of the plurality of coil wires 16U, 16V, 16W may be configured in a star connection pattern or in a delta connection pattern, both in series and in parallel, as illustrated in FIG. 6.The holding portions 36 function to hold the crossing wires 28, and also function as protrusion-shaped spacers for holding the plurality of first connection portions 34 in a state separated from each other in the radial direction. However, the holding portions 36 and the spacers may be independently provided.Further, the holding portions 36 are formed on all of the first connecting portions 34. However, the holding portions 36U, 36W may be omitted from the first U-phase connection portion 34U and the first W-phase connection portion 34W. Instead, spacers separately formed on the holding portions 36 may be provided on the outer circumferential surface and the inner circumferential surface of the first V-phase connection portion 34V so as to be fitted against the inner circumferential surface of the first U-phase connection portion 34U and the outer circumferential surface of the first W-phase connection portion 34W.The first connection portions 34 are provided only on the first axial direction (Z 1 side) side of the plurality of insulator portions 32U, but first connection portions may be provided only on the second axial direction (Z 2 side) side of the plurality of insulator portions 32U or on both axial direction sides of the plurality of insulator portions 32U.Further, the first connecting portions 34 are provided coaxially with the yoke 40, but first connecting portions that are not coaxial with the yoke 40 may be provided. The first connecting portions 34 are also formed in ring shapes, but the first connecting portions may be formed in another shape such as a polygonal shape, or a shape having a missing portion such as a C shape, for example.The crossing wires 28V, 28W serving as an example of an element of the present invention are accommodated in the recesses 38U, 38V, but another element may be accommodated.The holding portions 36 are formed in protrusion shapes, but the holding portions 36 may be formed in a circular arc shape to extend around the circumferential direction of the stator 10, or in another shape.The extending portions 32U 2 are formed only on the U-phase insulator 18U, but similar extending portions to the extending portions 32U 2 may be formed on the V-phase insulator 18V and the W-phase insulator 18W.The first connecting portion 34U is positioned further toward the radially inward direction than the core configuration portions 14U. However, as schematically illustrated in FIG. 15, the first connection portion 34U may be positioned further to the radially outward direction than the core configuration portions 14U as long as the insulator 18U has its extending portions 32U 2 positioned further to the radially inward direction than the core configuration portions 14U. Furthermore, as long as the extending portions 32U 2 are positioned more inward toward the radial direction than the core configuration portions 14U, the extending portions 32U 2 may extend from the yoke 40 in a direction of the axial direction, the radial direction, or a direction that is a combination thereof. Although the first connection portion 34U is provided on the first axial direction (Z 1 side) side of the insulator portions 32U and together connects the extension end portions of the extending portions 32U 2 extending in the axial direction of the yoke 40, a configuration may be made, for example, as illustrated in FIG. 16, in which the extending portions 32U 2 extend in the circumferential direction of the yoke 40 and the first connection portion 34U extends in the circumferential direction of the yoke 40 and connects the extension end portions of the extending portions 32U 2. Further, in cases where the extending portions 32U 2 extend in a direction from the axial direction of the yoke 40, the radial direction, or a direction that is a combination thereof, the first connecting portion 34U may connect the extending end portions of the extending portions 32U 2, and may also connect other locations of the extending portions 32U 2 other than the extending end portions. The above also applies similarly to cases where extending portions and a first connection portion are formed on the V-phase insulator 18V and on the W-phase insulator 18W.Further, as illustrated in FIG. 20A, the plurality of first connection portions 34U, 34V, 34W are provided such that gaps exist between each other in the radial direction and the axial direction of the yoke 40. However, a configuration may be made in which the first connecting portions 34U, 34V, 34W are provided such that there are gaps between each other in the axial direction of the yoke 40 as illustrated in FIG. 20B, or are provided such that there are gaps between each other in the radial direction of the yoke 40 as illustrated in FIG. 20C. In such configurations, a space for laying out the crossing wires 28 between the plurality of first connection portions 34U, 34V, 34W can also be secured.Although the stator 10 is also configured for use in a so-called inner rotor type brushless motor in which the plurality of tooth portions 24 protrude inward toward the radial direction of the yoke 40, the stator 10 may also be configured for use in a so-called outer rotor type brushless motor in which the plurality of tooth portions 24 protrude outward toward the radial direction of the yoke 20.Further, the stator 10 is configured to be segmented into the stator configuration sections 12U, 12V, 12W configured for each of the plurality of phases as an example of the plurality of groups. However, as illustrated in FIGS. 17 and 18A to 18C, the stator 10 may be segmented into stator configuration sections 12A, 12B, 12C configured by groups each including a combination of multiple phases.Note that, for example, in the examples illustrated in FIGS. 17 and 18A to 18C, a stator configuration portion 12A configuring a first group includes +U-phase tooth portions 24U and -W-phase tooth portions 24W, and a stator configuration portion 12B configuring a second group includes +V-phase tooth portions 24V and -U-phase tooth portions 24U. Further, a stator configuration section 12C configuring a third group includes +W-phase tooth sections 24W and -V-phase tooth sections 24V. Note that the brushless motor of this example is a 10-pole motor having 12 slots or a 14-pole motor having 12 slots. The coil wire is wound oppositely on the tooth portions of -U-phase, -V-phase and -W-phase.Although not specifically illustrated, as an example of a different combination, a configuration may be made such that, for example: a stator configuration portion 12A configuring the first group includes +U-phase tooth portions and -V-phase tooth portions; a stator configuration portion 12B configuring a second group includes +V-phase tooth portions and -U-phase tooth portions; and a stator configuration portion 12C configuring a third group includes +W-phase tooth portions and -W-phase tooth portions.Further, a configuration may be made such that: a stator configuration portion 12A configuring a first group includes +U-phase tooth portions and -U-phase tooth portions; a stator configuration portion 12B configuring a second group includes +V-phase tooth portions and -V-phase tooth portions; and a stator configuration portion 12C configuring a third group includes +W-phase tooth portions and -W-phase tooth portions.Further, a configuration may be made such that: a stator configuration portion 12A configuring a first group includes +U-phase tooth portions and -U-phase tooth portions; a stator configuration portion 12B configuring a second group includes +V-phase tooth portions and -W-phase tooth portions; and a stator configuration portion 12C configuring a third group includes +W-phase tooth portions and -V-phase tooth portions.In addition to the above, the configuration may also be made with stator configuration sections configuring each of the groups including the tooth sections of the multiple phases in a combination different from those listed above.Second Exemplary Embodiment of the Present InventionExplanation follows regarding a second exemplary embodiment of the present invention with reference to Figs. 7 to 9.The configuration of a stator 110 according to the second exemplary embodiment of the present invention varies from the stator 10 according to the first exemplary embodiment described above in the following manner. Note that, in the second exemplary embodiment of the present invention, a configuration similar to that of the first exemplary embodiment described above is assigned the same reference numerals and an explanation thereof will be abbreviated.As shown in FIG. 7, elongated plate-shaped conductive pads 112U, 112V, 112W are provided on each of the plurality of insulators 18U, 18V, 18W, respectively. The terminal portions 30U, 30V, 30W of the plurality of coil wires 16U, 16V, 16W are connected to the pads 112U, 112V, 112W, respectively. The pads 112U, 112V, 112W are provided on a first side of the axial direction of the yoke 40 (the arrow Z 1 side), namely, on the same side as the first connecting portions 34. tongue-shaped connector portions 113U, 113V, 113W are respectively formed on the pads 112U, 112V, 112W for connection to the terminal portions 30U, 30V, 30W.Further, as illustrated in FIG. 8, in the U-phase insulator 18U, protrusion portions 114U are formed at end portions of each of the insulator portions 32U on the opposite side to the yoke 40 (the yoke configuration portions 22U). The protrusion portions 114U protrude to a side of the yoke 40 from a first connection portion 34U. The protrusion portions 114U are formed in a plate shape extending along an axial direction of the yoke 40, and are thicker than the first connection portion 34U. End surfaces 114U 1 are formed on the protrusion portions 114U facing toward the first axial direction side of the yoke 40 (the arrow Z 1 side). An insertion groove 116U is formed on the end surface 114U 1 of one of the insulator portions 32U that opens in the axial direction of the yoke 40. The terminal 112U is provided on the protrusion portion 114U by insertion (press-fitting) into the insertion groove 116U. The terminal 112U also protrudes further than the first connection portion 34U in the axial direction of the yoke 40.Further, as illustrated in FIG. 7, similarly to the terminal 112U, insertion grooves 116V, 116W are also respectively formed on the end surfaces of the protrusion portions 114V, 114W of one of the respective insulator portions 32V, 32W, and terminals 112V, 112W are provided on the protrusion portions 114V, 114W by insertion (press-fitting) into the insertion grooves 116V, 116W. The pads 112U, 112V, 112W are in contact with the outer peripheral surface 34U 1 (the surface on the yoke 40 side) of the first connection portion 34U.As illustrated in FIG. 8, groove-shaped guide portions 118U are also formed on the insulator 18U along the axial direction of the yoke 40 (see FIG. 7 ). More specifically, the guide portions 118U are formed on side surfaces 114U 2 of the protrusion portions 114U (side surfaces facing in the circumferential direction of the yoke 40). The terminal portions 30U of the coil wire 16U are guided by the guide portions 118U. Note that, in this case, the terminal portions 30U are fitted into the groove-shaped guide portions 118U by snap-fitting, for example.Further, as illustrated in FIG. 7, guide portions 118V, 118W similar to the guide portions 118U described above are also formed on the lateral surfaces of the protrusion portions 114V, 114W, and the terminal portions 30V, 30W of the coil wires 16V, 16W are guided by the guide portions 118V, 118W.Explanation follows regarding the points at which an operation and advantageous effects of the second exemplary embodiment of the present invention are different from those of the first exemplary embodiment described above.Note that in the following explanation, for convenience, the letters U, V, W as additions of the names of each element and each portion are omitted when no distinction is made between the U phase, the V phase, and the W phase.According to the stator 110 of the second exemplary embodiment of the present invention, the pads 112 are respectively provided on the plurality of insulators 18, and the terminal portions 30 of the respective plurality of coil wires 16 are connected to the pads 112. Positioning of the pads 30 can be carried out accordingly easily.Further, since the pads 112 protrude more in the axial direction of the yoke 40 than first connecting portions 34, as illustrated in FIG. 8, the pads 112 and a control circuit portion can be easily connected to each other.Further, the pads 112 are provided on the protrusion portions 114 protruding toward the yoke 40 side with respect to the first connection portions 34. Accordingly, interference between the pads 112 and the first connection portions 34 can be avoided, and the terminal portions 30 can be easily positioned.Further, the pads 112 are inserted into the insertion grooves 116 formed on the protrusion portions 114, which allows the pads 112 to be easily fixed to the protrusion portions 114.The pads 112 are in contact with the outer circumferential surface 34U 1 of the first connection portion 34U, and rattle of the pads 112 can be suppressed.The guide portions 118 are also formed on the respective plurality of insulators 18 along the axial direction of the yoke 40, and the respective terminal portions 30 of the plurality of coil wires 16 are guided by the guide portions 118. This also enables positioning of the terminal portions to be easily performed.The guide portions 118 are also provided on the protrusion portions 114 protruding toward the yoke 40 side with respect to the first connection portions 34. Accordingly, interference between the terminal portions 30 and the first connection portions 34 can be suppressed, and the terminal portions 30 can be easily positioned.The following is an explanation regarding modified examples of the second exemplary embodiment of the present invention.In the above-described exemplary embodiment, the protrusion portions 114 are formed on each of the insulator portions 32, but the protrusion portions may be formed only on the insulator portions 32 provided with the pads 112 among the plurality of insulator portions 32.The guide portions 118U, 118V, 118W are also formed in groove shapes, but may be configured in a shape other than the groove shape.The pads 112 may also connect each of the terminal portions 30 as neutral points.Further, as illustrated in FIG. 10, the above-described pads 112U, 112V, 112W may be provided on the opposite side in the axial direction of the yoke 40 to the crossing wires 28 (the first connection portions 34). Such a configuration enables the connection between the pads 112 and a control circuit portion on the opposite side of the axial direction to the crossing wires 28 to be easily performed.Furthermore, as illustrated in FIG. 11, the above-described pads 112 (see FIGS. 7 to 9 ) may be omitted. In such cases, the terminal portions 30 may be directly connected to a control circuit portion, not through the pads 112 described above.Although the guide portions 118 are respectively formed on side surfaces 114U 2 on both sides of the first connection portions 114, the guide portions 118 may be formed only on one of the side surfaces 114U 2 of the first connection portions 114.As illustrated in FIGS. 12 and 13, a configuration may be made such that an insertion groove 126 is formed on the yoke configuration portions 22 of one of the plurality of yoke configuration portions 22 that opens in the axial direction of the yoke 40, and the terminal 112 provided on this yoke configuration portion 22 is provided by insertion into the insertion groove 126. Such a configuration also enables positioning of the terminal portions 30 to be easily performed. Further, the insertion of the terminals 112 into the insertion groove 126 formed at the yoke configuration portions 22 enables the terminals 112 to be easily fixed to the yoke configuration portions 22.Further, a configuration may be made in which the connector portion 113 is formed in a groove shape as illustrated in FIG. 12 or formed as a tongue shape as illustrated in FIG. 13. Note that in the case illustrated in FIG. 12, a cover of the terminal portion 30 is peeled off at the same time when insertion of the terminal 112 into the insertion groove 126 is performed and a current passage is established between the terminal portion 30 and the terminal 112. However, in the case illustrated in FIG. 13, an operator manually hooks the terminal portion 30 on the connector portion 113, and a current passage is established between the terminal portion 30 and the terminal 112.As illustrated in FIG. 14, the plurality of insulator portions 32 may be connected to the first connection portions 34 (the arrow Z 2 side) by circular arc-shaped reinforcing portions 128 on an opposite side to the yoke axial direction. Such a configuration makes it possible to increase the rigidity of the insulators 18.Further, in order to increase the rigidity of the insulators 18, a configuration may be made with a reinforcing member 130 such as a metal ring or metal wire embedded in the first connection portions 34 by insert molding. Also, a configuration may be made such that the insulators 18 are configured with the first connection portions 34 formed of a high strength resin and portions other than the first connection portions 34 formed of a normal strength resin by employing two-color casting.Application Examples of the Second Exemplary Embodiment of the Present InventionExplanation follows regarding examples of application of the second exemplary embodiment of the present invention with reference to FIG. 19.A fluid pump 210 shown in FIG. 19 is provided with the stator 110 described above. The fluid pump 210 is provided with a pump housing 212, a motor housing 214, an end housing 216, an impeller 218, a rotor 220, and a motor shaft 222, in addition to the stator 110 and the control circuit portion 120 described above. The stator 110 and the rotor 220 configure a brushless motor.In the fluid pump 210, a rotating magnetic field is formed by the stator 110 when current is supplied to the stator 110 from the control circuit portion 120, thereby rotating the impeller 218 together with the rotor 220. As the impeller 218 rotates, fluid is drawn in through a suction port 230 and directed into a pump chamber 228, and then the fluid directed into the pump chamber 228 is discharged through a discharge outlet 232.According to the fluid pump 210 (brushless motor), greater compactness and lower cost can be realized due to the provision of the stator 110.Third Exemplary Embodiment of the Present InventionExplanation follows regarding a third exemplary embodiment of the present invention with reference to the drawings.A stator 310 according to the third exemplary embodiment of the present invention is illustrated in FIG. 21, and is applied to, for example, an inner rotor type brushless motor, and is configured to include a U-phase stator configuration portion 312U, a V-phase stator configuration portion 312V, and a W-phase stator configuration portion 312W illustrated in FIGS. 22A to 22C.As illustrated in FIG. 21 and FIG. 22, the U-phase stator configuration section 312U is configured with a plurality of core configuration sections 314U, a coil wire 316U, and an insulator 318U. Note that the coil wire 316U is omitted from the illustration of FIG. 22A.The plurality of core configuration sections 314U configures a stator core 320 together with the plurality of V-phase core configuration sections 314V and the plurality of W-phase core configuration sections 314W, which will be described later. Each of the core configuration sections 314U includes a tooth section 322U and a yoke configuration section 324U. The tooth portions 322U extend along a radial direction of the stator core 320, and the yoke configuration portions 324U are formed at leading end portions of the tooth portions 322U. The yoke configuration sections 324U configure an annular yoke 326 together with the plurality of V-phase yoke configuration sections 324V and the plurality of W-phase yoke configuration sections 324W, which will be described later, and are each shaped in a circular arc shape.The coil wire 316U illustrated in FIG. 21 configures the U phase and includes a plurality of coil wire winding portions 328U and a plurality of crossing wires 330U. In the plurality of coil wire winding portions 328U, the coil wire 316U is concentrically wound on the tooth portions 322U of the core configuration portions 314U with the tooth portion insulator portions 342U, 352U, which will be described later, interposed therebetween. The coil wire winding portions 328U are connected to each other by the plurality of crossing wires 330U. The crossing wires 330U are laid out (wound) around the outer circumferential surface of a first connection portion 336U formed on the insulator 318U, which will be described later. Terminal portions 332U on both end sides of the coil wire 316U are led out from the core formation portions 314U to a first axial direction side (the arrow Z 1 side) of the stator core 320.The insulator 318U is made of a resin and includes the plurality of insulator portions 334U and the first connection portion 336U which have been integrated with each other, as illustrated in FIG. 22A. The number of the plurality of insulator portions 334U provided is the same as the number of the plurality of core configuration portions 314U mentioned above, and the insulator portions 334U are arranged in a ring shape at equal intervals. Each of the plurality of insulator portions 334U includes a first insulator portion 340U and a second insulator portion 350U segmented in an axial direction of the stator core 320.The first insulator portion 340U and the second insulator portion 350U respectively include the tooth portion insulator portions 342U, 352U, yoke configuration portion insulator portions 344U, 354U, and extension side wall portions 346U, 356U. The tooth portion insulator portions 342U, 352U, the yoke configuration portion insulator portions 344U, 354U, and the extension side wall portions 346U, 356U together configure an insulator main body portion 360U that insulates between the core configuration portions 314U and the coil wire winding portions 328U (see FIG. 21 ). The tooth portion insulator portions 342U, 352U are mounted to the tooth portions 322U from both sides of the axial direction of the stator core 320, and are configured to cover the tooth portions 322U. The yoke configuration portion insulator portions 344U, 354U are formed at leading end portions of the tooth portion insulator portions 342U, 352U, are mounted on the yoke configuration portions 324U from both sides of the axial direction of the stator core 320, and are configured to cover portions of the yoke configuration portions 324U other than the outer circumferential surface.The extension side wall portions 346U, 356U are respectively formed at base end portions of the tooth portion insulator portions 342U, 352U. The extension side wall portions 346U, 356U are formed as plate-shaped shapes extending along the axial direction of a stator core 320 with its plate thickness direction aligned with a radial direction of the stator core 320. The extension side wall portions 346U, 356U are formed along the circumferential direction of the stator core 320 and are wider in width than the above-mentioned tooth portion insulator portions 342U, 352U.The guide grooves 348U, 358U extending along the axial direction of the stator core 320 are respectively formed at side portions in a circumferential direction of the stator core 320 of the extension side wall portions 346U, 356U. The guide grooves 348U, 358U are provided for guiding the terminal portions 332U (see FIG. 21 ). An extending portion 362U is formed on the extension side wall portions 346U of the first insulator portion 340U, which extends toward a first axial direction side of the stator core 320. An extending end portion of the extending portion 362U is connected to a first connecting portion 336U, which will be described later.The first connection portion 336U is disposed on the first axial direction side of the stator core 320 (the arrow Z 1 side) with respect to the insulator portions 334U, and is formed in a ring shape along the circumferential direction of the stator core 320. The first connecting portion 336U is provided at a radial direction inward of the stator core 320 with respect to the tooth portion insulator portions 342U, 352U. Projection-shaped holding portions 364U are each formed on an outer circumferential surface of the first connection portion 336U between the plurality of insulator portions 334U so as to project toward the outside in a radial direction from the stator core 320. The holding portions 364U hold the above-mentioned crossing wires 330U from a second side of an axial direction of the stator core 320 (the arrow Z 2 side) (see FIG. 21 ). Further, portions between the plurality of extending portions 362U of the first connection portion 336U are formed with recesses 366U that are open to the second axial direction side of the stator core 320.The V-phase stator configuration section 312V illustrated in FIG. 21 and FIG. 22B has a similar basic configuration to the above-mentioned U-phase stator configuration section 312U. Namely, the V-phase stator configuration section 312V is configured to include a plurality of core configuration sections 314V, a coil wire 316V, and an insulator 318V. Note that the coil wire 316V is omitted from the illustration of FIG. 22B.Each of the core configuration sections 314V is configured similarly to the above-mentioned core configuration sections 314U, and includes a tooth portion 322V and a yoke configuration section 324V.The coil wire 316V illustrated in FIG. 21 configures the V phase and includes a plurality of coil wire winding portions 328V and a plurality of crossing wires 330V. In the plurality of coil wire winding portions 328V, the coil wire 316V is concentrically wound on the tooth portions 322V of the core configuration portions 314V with the tooth portion insulator portions 342V, 352V, which will be described later, interposed therebetween. The coil wire winding portions 328V are connected to each other by the plurality of crossing wires 330V. The crossing wires 330V are laid out (wound) around the outer circumferential surface of a first connection portion 336V formed on the insulator 318V, which will be described later. Terminal portions 332V on both end sides of the coil wire 316V are configured from the core configuration portions 314V to a first axial direction side (the arrow Z 1 side) of the stator core 320.The insulator 318V is made of a resin, and includes a plurality of insulator portions 334V and the first connection portion 336V which have been integrated with each other, as illustrated in FIG. 22B. The number of the plurality of insulator portions 334V provided is the same as the number of the plurality of core configuration portions 314V mentioned above, and the insulator portions 334V are arranged in a ring shape at equal intervals. Each of the plurality of insulator portions 334V includes a first insulator portion 340V and a second insulator portion 350V segmented in an axial direction of the stator core 320.The first insulator portion 340V and the second insulator portion 350V include the tooth portion insulator portions 342V, 352V, yoke configuration portion insulator portions 344V, 354V, and extension side wall portions 346V, 356V, respectively. The tooth portion insulator portions 342V, 352V, the yoke configuration portion insulator portions 344V, 354V, and the extension side wall portions 346V, 356V together configure an insulator main body portion 360V that insulates between the core configuration portions 314V and the coil wire winding portions 328V (see FIG. 21 ). The insulator main body portion 360V is configured similarly to the aforementioned insulator main body portion 360U.Guide grooves 348V, 358V extending along the axial direction of the stator core 320 are respectively formed at the side portions in a circumferential direction of the stator core 320 from the extension side wall portions 346V, 356V. The guide grooves 348V, 358V are provided to guide the above-mentioned terminal portions 332V (see FIG. 21 ). An extending portion 362V is also formed at each of the extension side wall portions 346V of the first insulator portion 340V extending toward inward in the radial direction of the stator core 320. An extending end portion of the extending portion 362V is connected to a first connecting portion 336V, which will be described later.The connecting portion 336V is disposed on the first axial direction side of the stator core 320 (the arrow Z 1 side) with respect to the insulator portions 334V. The first connecting portion 336V is formed in an annular plate shape extending along a circumferential direction of the stator core 320 and having a plate thickness direction aligned with the axial direction of the stator core 320. The first connecting portion 336V is provided on the inner side in the radial direction of the stator core 320 with respect to the tooth portion insulator portions 342V, 352V. Projection-shaped holding portions 364V are respectively formed on the outer peripheral surface of the first connection portion 336V between the plurality of insulator portions 334V so as to protrude outward in the radial direction of the stator core 320. The holding portions 364V hold the above-mentioned crossing wires 330V above a second axial direction side of the stator core 320 (the arrow Z 2 side) (see FIG. 21 ). Further, portions between the plurality of extending portions 362V of the first connection portion 336V are formed with recesses 366V open to the second axial direction side of the stator core 320.The W-phase stator configuration section 312W illustrated in FIGS. 21 and 22C has a similar basic configuration as the U-phase stator configuration section 312U and the V-phase stator configuration section 312V mentioned above. Namely, the W-phase stator configuration portion 312W is configured to include the plurality of core configuration portions 314W, a coil wire 316W, and an insulator 318W. Note that, from the illustration in FIG. 22C, the coil wire 316W is omitted.Each of the core configuration sections 314W is configured similarly to the above-mentioned core configuration sections 314U, 314V, and includes a tooth portion 322W and a yoke configuration section 324W.The coil wire 316W illustrated in FIG. 21 configures the W phase and includes a plurality of coil wire winding portions 328W and a plurality of crossing wires 330W. In the plurality of coil wire winding portions 328W, the coil wire 316W is concentrically wound on the tooth portions 322W of the core configuration portions 314W with the tooth portion insulator portions 342W, 352W, which will be described later, interposed therebetween. The coil wire winding portions 328W are connected to each other by the plurality of crossing wires 330W. The crossing wires 330W are laid out (wound) around the outer peripheral surface of a first connection portion 336W formed on the insulator 318W, which will be described later. Terminal portions 332W on both end sides of the coil wire 316W are exposed from the core configuration portions 314W to a first axial direction side (the arrow Z 1 side) of the stator core 320.The insulator 318W is made of a resin, and includes a plurality of insulator portions 334W and the first connection portion 336W which have been integrated with each other, as illustrated in FIG. 22C. The number of the plurality of insulator portions 334W provided is the same as the number of the plurality of the above-mentioned core configuration portions 314W, and the insulator portions 334W are arranged in a ring shape at equal intervals. Each of the plurality of insulator portions 334W includes a first insulator portion 340W and a second insulator portion 350W segmented in an axial direction of the stator core 320.The first insulator portion 340W and the second insulator portion 350W include the tooth portion insulator portions 342W, 352W, yoke configuration portion insulator portions 344W, 354W, and extension side wall portions 346W, 356W, respectively. The tooth portion insulator portions 342W, 352W, the yoke configuration portion insulator portions 344W, 354W, and the extension side wall portions 346W, 356W together configure an insulator main body portion 360W that insulates between the core configuration portions 314W and the coil wire winding portions 328W (see FIG. 21 ). The insulator main body portion 360W is configured similarly to the above-mentioned insulator main body portions 360U, 360V.Guide grooves 348W, 358W extending along an axial direction of the stator core 320 are respectively formed at the side portions in a circumferential direction of the stator core 320 at the extension side wall portions 346W, 356W. The guide grooves 348W, 358W are provided to guide the above-mentioned terminal portions 332W (see FIG. 21 ). An extending portion 362W is also formed to each of the extension side wall portions 346W of the first insulator portion 340W, extending toward inward in the radial direction of the stator core 320. An extending end portion of the extending portion 362W is connected to a first connecting portion 336W, which will be described later.The first connecting portion 336W is disposed on the first axial direction side of the stator core 320 (the arrow Z 1 side) with respect to the insulator portions 334W, and is formed in an annular shape extending in a circumferential direction along the stator core 320. The first connecting portion 336W is provided at the inner radial direction of the stator core 320 with respect to the tooth portion insulator portions 342W, 352W. The first connecting portion 336W includes an annular shaped holding portion 364W with its plate thickness direction aligned with the axial direction of the stator core 320, and an annular spacer 368W extending from locations on an inner side of a radial direction of the holding portion 364W toward the first side of the axial direction of the stator core 320. The holding portion 364W holds the crossing wires 330W from a second side of an axial direction of the stator core 320 (the arrow Z 2 side) (see FIG. 21 ).As illustrated in FIG. 21, the plurality of stator configuration sections 312U, 312V, 312W are mounted with each other to configure the stator 310. In the stator 310, the annular stator core 320 is configured by the plurality of core configuration sections 314U, 314V, 314W, and the annular yoke 326 is formed by the plurality of yoke configuration sections 324U, 324V, 324W. In other words, the stator core 320 is segmented into the plurality of core configuration sections 314U, 314V, 314W in the circumferential direction, and the yoke 326 is segmented into the plurality of yoke configuration sections 324U, 324V, 324W in the circumferential direction. The plurality of yoke configuration sections 324U, 324V, 324W respectively fit between pairs of yoke configuration sections adjacent to both sides thereof.The plurality of first connecting portions 336U, 336V, 336W are provided coaxially with the stator core 320. The plurality of first connecting portions 336U, 336V, 336W and the plurality of extending portions 362U, 362V, 362W mentioned above are positioned on the inner side of the radial direction of the stator core 320 with respect to each of the core configuration portions 314U, 314V, 314W. The first connecting portion 336U is disposed on the radial direction on the outer side of the first connecting portions 336V, 336W with a gap existing between the first connecting portions 336V, 336W. The first connecting portion 336V is disposed on the first axial direction side of the first connecting portion 336W, with a gap existing between the first connecting portion 336V and the first connecting portion 336W.The V-phase holding portions 364V are fitted against an inner peripheral surface of the first U-phase connecting portion 336U, and the first connecting portion 336U and the first connecting portion 336V are thereby held in a state separated from each other in the radial direction. Namely, the holding portions 364V are provided between the first connection portion 336U and the first connection portion 336V in the radial direction, and also perform the role of spacers for holding the first connection portion 336U and the first connection portion 336V in a state separated from each other in the radial direction. However, the spacers 368W are in contact with a surface on the second axial direction side (the arrow Z 2 side) of the first connection portion of the V phase 336V, thereby maintaining the first connection portion 336V and the first connection portion 336W in a state separated from each other in the axial direction.Further, as mentioned above, in an assembled state of the plurality of first connection portions 336U, 336V, 336W, the crossing V-phase wires 330V pass through (are accommodated inside the recesses 366U) the inside of the recesses 366U formed at the first connection portion of the U-phase 336U. The W-phase crossing wires 330W pass through the inside of the recesses 366U, 366V formed at the first U-phase connection portion 336U and the first V-phase connection portion 336V, respectively (are accommodated inside the recesses 366U, 366V). The recesses 366U, 366V are examples of a housing portion of the present invention.The following is an explanation regarding the method for manufacturing the stator 310 configured as described above.Casting ProcessFirst, as shown in FIG. 23A, the above insulator 318U is formed by resin molding. When this is done, as illustrated in FIG. 23A, in the insulator 318U, the second insulator portions 350U are formed to be adjacent to the first insulator portions 340U along the tangential direction of the first connection portion 336U, and bridging portions 370U are formed to connect together the yoke configuration portion insulator portions 344U, 354U in the first insulator portions 340U and the second insulator portions 350U.Namely, in this molding process, the first insulator portions 340U and the second insulator portions 350U are molded in a state of being connected to each other by the bridging portions 370U. Further, when this is done, the plurality of second insulator portions 350U are each formed offset to the same side (the same side in the tangential direction of the first connection portion 336U) with respect to the respective first insulator portions 340U. Each of the bridging portions 370U is also formed with the same length as each other.Note that, although in the insulator 318U, the first insulator portions 340U and the second insulator portions 350U are molded to have tooth portion insulator portions 342U, 352U having a U-shape in cross section opened in opposite directions to each other, the first insulator portions 340U and the second insulator portions 350U may be molded to have tooth portion insulator portions 342U, 352U having a U-shape in cross section opened in the same direction to each other.Installation and Cutting Off OperationThen, as shown in FIG. 24A, the insulator 318U is installed in a jig 380. When this is done, the second insulator portions 350U are mounted on movable tables 382. Each of the plurality of core configuration sections 314U is then installed to the respective second insulator section 350U from the upper side of the vertical direction. Then, as illustrated in FIG. 24B, each of the bridging portions 370 is cut using a punch 384.Position-Related Alignment ProcessNext, as illustrated in FIG. 24C, the first connecting portion 336U is raised together with the plurality of first insulator portions 340U using a lifting tool 386. When this is done, the first insulator portions 340U are positioned at a higher position than the core configuration portions 314U. The movable tables 382 are then slid together with the second insulator portions 350U in the tangential direction of the first connection portion 336U such that the core configuration portions 314U are positioned below the first insulator portions 340U.Then, as illustrated in FIG. 24D, positional alignment is performed between the core configuration sections 314U installed on the second insulator sections 350U and the first insulator sections 340U. Here, the positional alignment is performed in a state where the core configuration sections 314U remain installed vertically above the second insulator sections 350U.Installation OperationThen, as illustrated in FIG. 24D, the first connecting portion 336U is lowered together with the plurality of first insulator portions 340U by the lifting tool 386, and the first insulator portions 340U are installed on the core configuration portions 314U installed on the second insulator portions 350U. When this is done, the first insulator portions 340U are pressed against the core configuration portions 314U by a pressing tool 388.Operation for winding the coil wireThen, as illustrated in FIG. 24E, using a flyer 390, the coil wire 316U is wound on the core configuration sections 314U with the first insulator sections 340U and the second insulator sections 350U interposed therebetween. The coil wire winding portions 328U are thereby formed with the coil wire 316U at the core formation portions 314U. By the above operations, the stator configuration portion 312U is completed.The stator configuration sections 312V, 312W are also manufactured in a similar manner to the stator configuration section 312U.Namely, in the molding process, as illustrated in FIG. 23B, in the insulator 318V, the first insulator portions 340V and the second insulator portions 350V are integrally molded with the bridging portions 370V for connecting the first insulator portions 340V and the second insulator portions 350V to each other. Further, as illustrated in FIG. 23C, in the insulator 318W, the first insulator portions 340W and the second insulator portions 350W are integrally molded with the bridging portions 370W for connecting the first insulator portions 340W and the second insulator portions 350W to each other.Then, in the installation and cutting operation, the plurality of core configuration sections 314V, 314W are respectively installed on the second insulator sections 350V, 350W, and then each of the bridging sections 370V, 370W is cut. Further, in the position-related alignment process, the position-related alignment is performed between the core configuration sections 314V, 314W installed on the second insulator sections 350U, 350W and the first insulator sections 340V, 340W, and in the installation process, the first insulator sections 340V, 340W are then installed on the core configuration sections 314V, 314W installed on the second insulator sections 350V, 350W.Then, in the process of winding the coil wire, the coil wires 316V, 316W are wound on the core configuration sections 314V, 314W, thereby forming the coil wire winding sections 328V, 328W with the coil wires 316V, 316W on the core configuration sections 314V, 314W. The stator configuration sections 312V, 312W are completed by the above processes.Then, the stator 310 is completed by mounting the plurality of stator configuration sections 312U, 312V, 312W together.Explanation follows regarding the operation and advantageous effects of the present exemplary embodiment.Note that in the following explanation, for the sake of simplicity, the letters U, V, W as additions of the reference numerals of each element and each portion are omitted when no distinction is made between the U phase, the V phase, and the W phase.According to the method for manufacturing the stator 310 of the present exemplary embodiment, in the molding process, the first insulator portions 340 and the second insulator portions 350 of the insulators 318 are integrally molded with the bridging portions 370 interposed therebetween. The number of components required for mounting the stator 310 can be accordingly reduced as compared with the cases where the first insulator portions 340 and the second insulator portions 350 are separately formed.Further, in the installation and cutting operation, the bridging portions 370 are cut after the core configuration portions 314 are installed to the second insulator portions 350. Thus, when installing the core configuration sections 314 to the second insulator sections 350 and inserting the insulators 318 into the jig 380, the entire body of each of the insulators 318 including the second insulator sections 350 can be inserted into the jig 380 in a single operation. Accordingly, the number of operations for inserting the insulators 318 into the jig 380 can be reduced as compared with the cases where the bridging portions 370 are cut off before the installation of the core configuration portions 314 into the second insulator portions 350.Further, in the molding process, the plurality of first insulator portions 340 arranged in a ring shape are connected to each other by each of the first connection portions 336. Thus, in the subsequent positional alignment operation, the positional alignment between the core configuration sections 314 installed on the second insulator sections 350 and the first insulator sections 340 can be easily performed.Specifically, in the molding process, the plurality of first insulator portions 340 are arranged at equal intervals therebetween in the ring shape, and the plurality of second insulator portions 350 are formed offset to the same side with respect to each of the first insulator portions 340. Each of the bridging portions 370 is also formed with the same length as each other. The core configuration sections 314 are thus installed to the second insulator sections 350 in the process of installation and cutting subsequent to the casting process. In the positional alignment operation, even when the positional alignment between the core configuration sections 314 and the first insulator sections 340 is performed by moving the second insulator sections 350 having the installed core configuration sections 314 with respect to the first insulator sections 340, the moving distances of the plurality of second insulator sections 350 can be made equal to each other. Accordingly, positional alignment between the core configuration portions 314 installed in the second insulator portions 350 and the first insulator portions 340 can be made even easier.Further, in the positional alignment operation, the positional alignment between the core configuration sections 314 and the first insulator sections 340 is performed in a state in which the core configuration sections 314 have been installed in the second insulator sections 350 from the upper side of the vertical direction. The core configuration sections 314 can be accordingly easily held in an installed state in the second insulator sections 350, which allows positional alignment between the core configuration sections 314 and the first insulator sections 340 to be easily performed.Furthermore, according to the method of manufacturing the stator 310, a plurality of the insulators 318 are formed for a single stator core 320. The stator core 320 can thus be segmented into the plurality of stator configuration sections 312U, 312V, 312W by mounting each of the plurality of core configuration sections 314 to each of the insulators 318 segmented in the circumferential direction of the stator core 320. Accordingly, it is possible to manufacture each of the stator configuration sections 312U, 312V, 312W, resulting in a light assembly process for the stator core 320 (specifically, light winding processes of the coil wires 316).Further, when the plurality of insulators 318U, 318V, 318W are assembled to each other, an arrangement is made such that gaps in the radial direction of the stator core 320 are present between the first connection portion 336U and the first connection portions 336V, 336W, and an arrangement is made such that a gap in the axial direction of the stator core 320 is present between the first connection portion 336V and the first connection portion 336W. Interference between the plurality of first connection portions 336U, 336V, 336W can thus be suppressed in mounting the plurality of insulators 318U, 318V, 318W to each other. Good handling efficiency can be achieved accordingly when mounting the plurality of insulators 318U, 318V, 318W to each other.Further, the recesses 366U for accommodating the V-phase and W-phase crossing wires 330V, 330W, which are examples of another element, are formed in the first U-phase connection portion 336U, and the recesses 366V for accommodating the W-phase crossing wires 330W, which are examples of another element, are formed in the first V-phase connection portion 336V. Therefore, in the assembled state of the stator 310, interference between the first connection portion 336U and the crossing wires 330V, 330W and interference between the first connection portion 336V and the crossing wires 330W can be avoided.Further, in each of the first connection portions 336U, 336V, 336W, the holding portions 364U, 364V, 364W are formed to hold the crossing wires 330U, 330V, 330W, respectively. Good handling efficiency can be achieved accordingly when assembling the plurality of stator configuration sections 312U, 312V, 312W together. Even after the stator 310 is installed in a brushless motor, the crossing wires 330U, 330V, 330W are still held at the first connection portions 336U, 336V, 336W by the holding portions 364U, 364V, 364W, and thus, chattering of the crossing wires 330U, 330V, 330W can be suppressed, making it possible to prevent occurrence of noise and errors.Further, the holding portions 364V functioning as spacers for holding the first connection portion 336U and the first connection portion 336V in a separated state from each other are formed on the first connection portion 336V, and the spacers 368W holding the first connection portion 336V and the first connection portion 336W in a separated state from each other are formed on the first connection portion 336W. Accordingly, the plurality of first connection portions 336U, 336V, 336W can be maintained in a state separated from each other in the assembled state of the stator 310. A space for, for example, laying out the crossing wires 330V, 330W between the plurality of first connection portions 336U, 336V, 336W can be ensured accordingly, and rattle of the plurality of first connection portions 336U, 336V, 336W can also be suppressed.The plurality of first connection portions 336U, 336V, 336W are provided coaxially with the stator core 320 when the plurality of insulators 318U, 318V, 318W have been mounted on the stator core 320. Accordingly, the structure of the stator 310 can be simplified.Each of the first connecting portions 336 is positioned inward in the radial direction with respect to the stator core 320 when the plurality of insulators 318U, 318V, 318W are mounted on the stator core 320. Accordingly, interference between the blade 390 and the first connection portions 336 can be suppressed when the blade 390 is used to wind the coil wires 316 onto the core configuration portions 314 from the outside in the radial direction of the stator core 320.The extending portions 362 also extend out from the insulator main body portions 360 (the extension side wall portions 346 of the first insulator portions 340) which insulate between the core configuration portions 314 and the coil wire winding portions 328, and the extending portions 362 are joined together by the first connection portions 336. The extending portions 362 are positioned on the inner side of the radial direction of the stator core 320 with respect to the core configuration portions 314. Interference between the blade 390 and the extending portions 362 and the first connecting portions 336 can thus be avoided when the blade 390 is used to wind the coil wires 316 onto the core configuration portions 314 from the outer side in the radial direction of the stator core 320.In the core configuration sections 314, moreover, the tooth sections 322 are locations where the coil wires 316 are wound to form the coil wire winding sections 328. Guide portions (the guide grooves 348, 358), for example, for guiding the terminal portions 332 of the coil wires 316 are also formed on the base end sides of the tooth portions 322.In this point, according to the method of manufacturing the stator 310, the bridging portions 370 are formed to connect between the yoke configuration portion insulator portions 344, 354 of the first insulator portions 340 and the second insulator portions 350. Accordingly, although the bridging portions 370 are formed, it can be prevented for the bridging portions 370 to affect the coil wire winding portions 328, the guide portions, and the like.Explanation follows regarding modified examples of the present exemplary embodiment.In the above exemplary embodiment, the second insulator portions 350 are formed to be adjacent to the first insulator portions 340 in the tangential direction of the first connection portions 336. However, as illustrated in FIG. 25, the second insulator portions 350 may be formed to be adjacent to the first insulator portions 340 in the circumferential direction of the first connection portions 336.In the above exemplary embodiment, the second insulator portions 350 are connected to only one of the first insulator portions 340 among the two adjacent first insulator portions 340 on the two sides of the second insulator portions 350 through the bridging portions 370. However, as illustrated in FIG. 25, the second insulator portions 350 may be connected to each of the first insulator portions 340 of the two adjacent first insulator portions 340 on the two sides of the second insulator portions 350 through the bridging portions 370.Note that when the insulators 318 shown in FIG. 25 are used, the stator configuration sections 312 are manufactured by a method similar to the above manufacturing method shown in FIGS. 26A to 26D, but different from the above manufacturing method in the following points.Namely, as illustrated in FIG. 26A, in the installation and cutting operation, movable tables capable of sliding in a circumferential direction of the first connecting portions 336 are employed as the movable tables 382. Further, as illustrated in FIG. 26B, in the installation and cutting operation, a plurality of bridging portions 370 which are arranged at intervals along the circumferential direction of the first connecting portions 336 are cut. Further, as illustrated in FIGS. 26C and 26D, in the position-related aligning operation, the movable tables 382 are slid together with the second insulator portions 350U in the circumferential direction of the first connection portion 336U such that the core configuration portions 314U are positioned below the first insulator portions 340U. Note that the operation of installation and the operation of a coil wire winding are similar to those described above.Similar operations and advantageous effects can be provided when using this manufacturing method to those of the manufacturing method according to the above exemplary embodiment.In the above exemplary embodiment, after the core configuration sections 314 are installed to the second insulator sections 350 in the installation and cutting operation, the first insulator sections 340 are then installed to the core configuration sections 314 in the subsequent installation operation. However, the configuration may be made such that after the first insulator portions 340 are installed to the core configuration portions 314 from the upper side of the vertical direction in the process of installation and cutting, the second insulator portions 350 are then installed to the core configuration portions 314 from a lower side of the vertical direction in a subsequent installation process.Note that in such cases, a locking structure having recesses and protrusions, or a friction structure or a jig or the like not shown in the drawings may be employed to prevent the core configuration portions 314 from dropping out from the first insulator portions 340. The core configuration sections 314 may also be installed on the insulator sections 340 that have been elastically deformed by, for example, a jig such that the core configuration sections 314 are held in the first insulator sections 340 by a resilient force of the first insulator sections 340.Further, the insulators 318 may be configured in a vertically inverted state from the above-described state such that the first insulator portions 340 are in a vertically upward opened state and the core configuration portions 314 are then installed to the first insulator portions 340 from the upper side of the vertical direction in this state.Further, in the above exemplary embodiment, in the positional alignment operation, the second insulator portions 350, which are installed with the core configuration portions 314, are moved with respect to the first insulator portions 340. However, the first insulator portions 340 may be moved together with the first connection portions 336 with respect to the second insulator portions 350 installed with the core configuration portions 314. Further, both the second insulator portions 350 installed with the core configuration portions 314 and the first insulator portions 340 can be moved.In the installation and cutting operation, the bridging portions 370 are cut after the core configuration portions 314 are installed to the second insulator portions 350, but the bridging portions 370 may be cut before the installation of the core configuration portions to the second insulator portions 350.Furthermore, although an arrangement is made such that gaps exist between the first connection portion 336U and the first connection portions 336V, 336W in the radial direction of the stator core 320 and an arrangement is made such that a gap exists between the first connection portion 336V and the first connection portion 336W in the axial direction of the stator core 320, the plurality of first connection portions 336U, 336V, 336W may be made such that a gap exists in one direction of the radial direction and the axial direction of the stator core 320, or in one direction that is a combination thereof.Furthermore, although the recesses 366U serving as an example of a housing portion are formed in the first connection portion 336U for accommodating the crossing wires 330V, 330W (for the crossing wires 330V, 330W to pass through) and the recesses 366V serving as an example of a housing portion are formed in the first connection portion 336V for accommodating the crossing wires 330W (for the crossing wires 330W to pass through), a recess-shaped housing portion may be formed at the first connection portion 336W for accommodating a member other than the crossing wires 330, for example.Furthermore, although the extending portions 362U extend from the extension side wall portions 346U toward the first axial direction side of the stator core 320, the extending portions 362U may extend from the extension side wall portions 356U toward the second axial direction side of the stator core 320.Further, in the insulators 318U, 318V, 318W, for each of the phases, the tooth portion insulator portions 342, 352 and the yoke configuration portion insulator portions 344, 354 excluding the extension side wall portions 346, 356 may configure the insulator main body portions 360, and a portion of the extension side wall portions 346 extending from the tooth portion insulator portions 342 in the circumferential direction of the stator core 320 may also be configured as an extending portion. Similarly, the tooth portion insulator portions 342, 352 and the yoke configuration portion insulator portions 344, 354 excluding the extension side wall portions 346, 356 may configure the insulator main body portions 360, and a portion of the extension side wall portions 356 extending from the tooth portion insulator portions 352 in the circumferential direction of the stator core 320 may also be configured as an extending portion. Each of the extending portions may also be connected by the first connecting portions 336.In the insulators 318U, 318V, 318W for each of the phases, as long as the extending portion 362 is positioned on an inner side of the radial direction of the stator core 320 with respect to the core configuration portions 314, the extending portion 362 may extend from the insulator main body portions 360 in a direction of the axial direction, the radial direction, or the circumferential direction of the stator core 320, or a direction that is a combination thereof.In the V-phase insulator 318V, the holding portions 364V have a function to function as holding portions for holding the crossing wires 330 and a function to function as spacers for holding the first connection portions 336U, 336V in a state separated from each other in the radial direction. However, a holding portion and a spacer may be provided independently of each other.Furthermore, although the plurality of first connection portions 336U, 336V, 336W are provided coaxially with the stator core 320, they may not be provided coaxially with the stator core 320. Each of the first connecting portions 336U, 336V, 336W is also formed in a ring shape, but may be formed in another shape such as a polygonal shape or a shape with a missing portion such as a C shape.Each of the first connecting portions 336U, 336V, 336W is positioned on an inner side of the radial direction of the stator core 320 with respect to the core configuration portions 314, but as long as the extending portions 362U, 362V, 362W are positioned on the inner side of the radial direction of the stator core 320 with respect to the core configuration portions 314, each of the first connecting portions 336U, 336V, 336W may be positioned on the outer side of the radial direction of the stator core 320 with respect to the core configuration portions 314.Furthermore, although the stator 310 is configured for use in an inner rotor type brushless motor, the stator 310 may also be configured for use in an outer rotor type brushless motor.Furthermore, although the stator 310 is segmented into the stator configuration sections 312U, 312V, 312W configured for each of the plurality of phases as an example of the plurality of groups, the stator 310 may be segmented into a plurality of stator configuration sections configuring groups each including a combination of a plurality of phases.In addition to the above, a configuration may be further made with stator configuration sections that configure the groups, respectively, including other combinations of core configuration sections of multiple phases.Note that although the brushless motor to which the stator 310 according to the present exemplary embodiment is applied is configured by a motor having 8 poles and 12 slots as an example, a configuration having a motor having another combination of the number of poles and the number of slots may be manufactured.Further, the connection method of the plurality of coil wires 316 may be configured in a star connection pattern or a delta connection pattern, both in series and in parallel.Fourth Exemplary EmbodimentExplanation follows regarding a fourth exemplary embodiment of the present invention.A stator 410 according to a fourth exemplary embodiment of the present invention illustrated in FIG. 27 has similar portions to those of the stator of the third exemplary embodiment. The explanation thus focuses on different portions, and an explanation regarding the similar portions is omitted as appropriate.In the present exemplary embodiment, as illustrated in FIGS. 27 and 28A, in a U-phase stator configuration portion 412U, a first connection portion 436U is provided on a first axial direction side (the arrow Z 1 side) of a stator core 420, and is formed in a ring shape extending around a circumferential direction of the stator core 420. The first connection portion 436U is provided further to the inner side of a radial direction of the stator core 420 as the tooth portion insulator portions 442U, 452U (namely, the winding portions 428U wound on the tooth portions 422U). Axial direction extending portions 447U extend from the first connecting portion 436U toward a second axial direction side of the stator core 420 (the arrow Z 2 side), and the leading end portions of the axial direction extending portions 447U are connected to end portions on the first axial direction side of extension side wall portions 446U. The axial direction extending portions 447U, the extension side wall portions 446U, and extension side wall portions 456U configure an extending portion 462U that is a part of an insulator portion 434U.Next, as illustrated in FIGS. 27 and 28B, in a V-phase stator configuration portion 412V, a first connection portion 436V is provided on the first axial direction side (the arrow Z 1 side) of the stator core 420. The first connecting portion 436V is formed in an annular plate shape that extends around the circumferential direction of the stator core 420 and that has its thickness direction aligned with the axial direction of the stator core 420. The first connection portion 436V is provided further to the inner side of the radial direction of the stator core 420 than the tooth portion insulator portions 442V, 452V (namely, further than the winding portions 428V wound on the tooth portions 422V). Axial direction extending portions 447V extend from the first connecting portion 436V toward the second axial direction side of the stator core 420 (the arrow Z 2 side). Further, radial direction extending portions 449V also extend toward the radial direction outer side of the stator core 420 from leading end portions of the axial direction extending portions 447V. Leading end portions of the extending radial direction portions 449V are connected to end portions on the first axial direction side of the extending side wall portions 446V. The axial direction extending portions 447V, the radial direction extending portions 449V, the extension side wall portions 446V, and the extension side wall portions 456V configure an extending portion 462V that is a part of an insulator portion 434V.Next, as illustrated in FIGS. 27 and 28C, in a W-phase stator configuration portion 412W, a first connection portion 436W is provided on the first axial direction side (the arrow Z 1 side) of the stator core 420, and is formed in a ring shape extending around the circumferential direction of the stator core 420. The first connection portion 436W is provided further to the inner side of a radial direction of the stator core 420 than tooth portion insulator portions 442W, 452W (namely, the winding portions 428W wound on the tooth portions 422W). Radial direction extending portions 449W extend toward the outside of a radial direction of the stator core 420 from the first connection portion 436W. Leading end portions of the extending radial direction portions 449W are connected to end portions on the first axial direction side of the extending side wall portions 446W. The radial direction extending portions 449W, the extension side wall portions 446W, and extension side wall portions 456W configure extending portions 462W that are a part of the insulator portions 434W.The above-mentioned first connecting portion 436W includes an annular shaped holding portion 464W having a plate thickness direction aligned with the axial direction of the stator core 420, and an annular spacer 468W extending from a location on the inner side of the radial direction from the holding portion 464W toward the first side of the axial direction of the stator core 420. The holding portion 464W holds the above-mentioned crossing wires 430W from a second side of an axial direction of the stator core 420 (the arrow Z 2 side) (see FIG. 27 ).Further, as illustrated in FIG. 29, second connecting portions 438W are formed on the extension side wall portions 446W positioned on the first axial direction side of the stator core 420. The second connecting portions 438W are formed in circular arc shapes extending around the circumferential direction of the stator core 420, and connect end portions on the second axial direction side of the stator core 420 from the adjacent extension side wall portions 446W. The second connecting portions 438W are disposed further to the inner side of the radial direction of the stator core 420 than the tooth portion insulator portions 442W, 452W (namely, the winding portions 428W wound on tooth portions 422W with the tooth portion insulator portions 442W, 452W interposed therebetween).Then, as illustrated in FIG. 30, the stator configuration portion 412U, the stator configuration portion 412V, and the stator configuration portion 412W (the insulator 418U, the insulator 418V, and the insulator 418W) are sequentially arranged from the first axial direction side of the stator core 420 to the second axial direction side of the stator core 420, thereby mounting the plurality of stator configuration portions 412U, 412V, 412W to each other. When this is done, the plurality of stator configuration sections 412U, 412V, 412W are assembled with each other such that a plurality of core configuration elements 414U, 414V, 414W are arranged in the order of U-phase, V-phase, W-phase around the circumferential direction of the stator core 420. Thus, as illustrated in FIG. 27, the stator 410 is configured by the plurality of stator configuration sections 412U, 412V, 412W.Further, as illustrated in FIG. 29, the plurality of insulators 418U, 418V, 418W include a locking structure 470 for positioning with each other. Namely, terminal portions 472 formed in recesses are formed at the second connecting portions 438W. Projection-shaped mating terminal portions 474 on which the terminal portions 472 fit are formed on the insulator portions 438U, 438V (more specifically, end portions on the second side of the axial direction of the stator core 420 from the extension side wall portions 446U, 446V) provided between pairs of insulator portions 434W connected to each other by the second connection portions 438W. The terminal portions 472 and the mating terminal portions 474 configuring the latch structure 470 mate with each other, thereby positioning and securing the plurality of insulators 418U, 418V, 418W relative to each other.The plurality of first connecting portions 436U, 436V, 436W are positioned coaxially with each other and provided coaxially with the stator core 420. The plurality of first connecting portions 436U, 436V, 436W and the above-mentioned plurality of extending portions 462U, 462V, 462W are also positioned further toward the inner side of the radial direction of the stator core 420 than each of the insulator main body portions 460U, 460V, 460W (the core configuration members 414U, 414V, 414W).The outer diameter of the first connection portion 436V is smaller than the outer diameter of the first connection portion 436U, and the outer diameter of the first connection portion 436W is smaller than the outer diameter of the first connection portion 436V. The first connecting portion 436U is disposed on the outer side of the radial direction of the first connecting portions 436V, 436W, with a gap from the first connecting portions 436V, 436W. The first connecting portion 436V is disposed on the outer side of the radial direction and on the first side of the axial direction from the first connecting portion 436W, with a gap to the first connecting portion 436W.The V-phase holding portions 464V are fitted against an inner peripheral surface of the first U-phase connecting portion 436U, thereby holding the first connecting portion 436U and the first connecting portion 436V in a state separated from each other in the radial direction. Namely, the holding portions 464V are provided between the first connection portion 436U and the first connection portion 436V in the radial direction, and function as spacers to hold the first connection portion 436U and the first connection portion 436V in a state separated from each other in the radial direction. The spacer 468W is in contact with a surface on the second axial direction side (the arrow Z 2 side) of the first V-phase connection portion 436V, thereby maintaining the first connection portion 436V and the first connection portion 436W in a state separated from each other in the axial direction.Further, as described above, in the mutually assembled state of the plurality of first connection portions 436U, 436V, 436W, the V-phase crossing wires 430V pass through the inside of recesses 466U formed at the first U-phase connection portion 436U (accommodated in the recesses 466U). The W-phase crossing wires 430W pass through the inside of the recesses 466U, 466V formed at the first connection portions of the U-phase and the V-phase 436U, 436V (are accommodated in the recesses 466U, 466V). The recesses 466U, 466V are examples of housing portions of the present invention.Next, explanation follows regarding the operations and advantageous effects of the fourth exemplary embodiment of the present invention.As described above in detail, according to the stator 410 of the fourth exemplary embodiment of the present invention, as illustrated in FIG. 29, in the insulator 418W, the plurality of insulator portions 434W (first insulator portions 440W) are connected by the second connection portions 438W and the first connection portion 436W. Accordingly, the rigidity between the plurality of insulator portions 434W (the first insulator portions 440W), and thus the rigidity of the plurality of insulator portions 434U, 434V, 434W, can be ensured by the second connection portions 438W. As a result, the rigidity for the stator 410 as a whole can be secured after the assembly.Further, the second connecting portions 438W are separated in the axial direction of the stator core 420 with respect to the first connecting portions 436U, 436V, 436W. A well-balanced rigidity can be ensured accordingly after the mounting of the stator 410.Of the plurality of insulators 418U, 418V, 418W, the second connection portions 438W are formed on the insulator 418W positioned farthest to the second axial direction side of the stator core 420 when the plurality of insulators are arranged along the axial direction of the stator core 420 in a state before the mounting of the plurality of insulators (see FIG. 30 ). Interference of the insulator portions 434U, 434V (the extension side wall portions 446U, 446V) formed on the other insulators 418U, 418V with the second connection portions 438W can thus be avoided when the plurality of insulators 418U, 418V, 418W are assembled along the axial direction of the stator core 420.Further, in the insulator 418W, the plurality of first insulator portions 440W are connected to each other by the second connection portions 438W and the first connection portions 436W. Accordingly, the plurality of first insulator portions 440W can be easily mounted to the core configuration portion 414W through the second connection portions 438W, and the plurality of first insulator portions 440W can also be stabilized and fixed thereby after the mounting.Of the plurality of insulators 418U, 418V, 418W, the second connecting portions 438W are also formed on the insulator 418W having the first connecting portion 436W having the smallest outer diameter. Thus, interference of the insulator portions 434U, 434V (the extension side wall portions 446U, 446V) formed on the other insulators 418U, 418V with the second connection portions 438W can be prevented when the other insulators 418U, 418V are mounted on the insulator 418W from the first axial direction side of the stator core 420.Further, the second connecting portions 438W are disposed further toward the inner side of the radial direction of the stator core 420 than the tooth portion insulator portions 442W, 452W (namely, the winding portions 428W wound on the tooth portions 422W with the tooth portion insulator portions 442W, 452W interposed therebetween). Interference between a blade and the second connection portions 438W can thus be avoided when, for example, a coil wire 416W is wound on the tooth portions 422U using the blade.The second connecting portions 438W further connect together the plurality of extending portions 462W (extension side wall portions 446W) at the insulator 418W. Therefore, although each of the insulator portions 434W includes the respective extending portions 462W extending from the first connection portion 436W (the radial direction extending portions 449W, the extension side wall portions 446W, 456W), the rigidity between the plurality of insulator portions 434W and thus the rigidity of the plurality of insulator portions 434U, 434V, 434W can be secured.The second connecting portions 438W are formed to leading end portions of the extension side wall portions 446W, in particular. Accordingly, rigidity between the plurality of insulator portions 434U, 434V, 434W can be effectively secured.The stator 410 is further formed with the second connection portions 438W on only the insulator 418W. Accordingly, a simplified structure is enabled.The plurality of insulators 418U, 418V, 418W further include the locking structure 470 for mutual positioning. Accordingly, the insulators 418U, 418V, 418W may be positioned relative to each other by the locking structure 470, which facilitates easy assembly of the stator 410.Specifically, the lock structure 470 includes the terminal portions 472 and the mating terminal portions 474, the terminal portions 472 are formed at the second connection portions 438W, and the mating terminal portions 474 are formed at the insulator portions 434U, 434V positioned between pairs of the insulator portions 434W that are connected to each other by the second connection portions 438W. Fitting of the terminal portions 472 and the mating terminal portions 474 can be accordingly easily performed.Explanation follows regarding modified examples of the fourth exemplary embodiment of the present invention.In the exemplary embodiment described above, the second connection portions 438W are formed at the end portion on the second axial direction side of the stator core 420 from the extension side wall portions 446W. However, the second connecting portions 438W may be formed between a base end portion and an extension end portion of the extending portions 462W (namely, between the base end portion of the radial direction extending portions 449W and the second axial direction side end portions of the stator core 420 of the extension side wall portions 446W). In such cases, as illustrated in FIG. 31, the second connecting portions 438W preferably include insert portions 439W that are inserted toward a center side of the first connecting portion 436W such that interference with, for example, the other extension side wall portions 446U, 446V, 456U, 456V is avoided.Further, although the configuration is made such that the second connection portions 438W connect to each other the plurality of first insulator portions 440W (the end portions on the second axial direction side of the stator core 420 from the extension side wall portions 446W), a configuration may be made, as illustrated in FIG. 32, in which the second connection portions 438W connect to each other the plurality of second insulator portions 450W (end portions on the second axial direction side of the stator core 420 from the extension side wall portions 456W) connected to each other. When such a configuration is adopted, the rigidity between the plurality of first insulator portions 440W and a rigidity between the plurality of second insulator portions 450W can be increased with good balance due to the first connection portion 436W and the second connection portions 438W. Accordingly, the rigidity of the stator 410 as a whole after the assembly can also be ensured.Further, in the modified example illustrated in FIG. 32, the plurality of second insulator portions 450W are connected to each other by the second connection portions 438W. Accordingly, the plurality of second insulator portions 450W can be easily mounted to the core forming member 414W using the second connection portions 438W, which allows stability and fixation to be achieved after mounting.When the plurality of second insulator portions 450W are connected by the second connection portions 438W, the terminal portions 472 may be formed at the second connection portions 438W. Note that in such cases, the mating terminal portions 474 illustrated in FIG. 29 are formed at end portions on the second axial direction side of the stator core 420 from the extension side wall portions 456U, 456V. The employment of such a configuration positions the first insulator portions 440U, 440V, 440W and the second insulator portions 450U, 450V, 450W relative to each other during assembly, which improves the assembly efficiency and enables the first insulator portions 440U, 440V, 440W and the second insulator portions 450U, 450V, 450W to be stabilized and fixed.Note that the terminal portions 472 may be omitted from the second connection portions 438W when the plurality of first insulator portions 440W are connected together by the second connection portions 438W. With such a configuration, the plurality of first insulator portions 440W are joined together with each other by the second joint portions 438W in addition to the first joint portion 436W, and thus the plurality of first insulator portions 440W can be easily mounted on the core forming member 414W by the second joint portions 438W, and stabilization and fixation are enabled after the mounting.As illustrated in FIG. 33, the plurality of first insulator portions 440W (the end portions on the first axial direction side of the stator core 420 and the end portions on the second axial direction side of the stator core 420 of the extension side wall portions 446W) may be joined to each other by the first joint portion 436W and the second joint portions 438W, and the plurality of second insulator portions 450W (the end portions on the second axial direction side of the stator core 420 of the extension side wall portions 456W) may be joined to each other by the third joint portions 478W. The employment of such a configuration makes it possible to increase the rigidity between the plurality of first insulator portions 440W and the rigidity between the plurality of second insulator portions 450W through the first connection portion 436W, the second connection portions 438W, and the third connection portions 478W. The rigidity of the stator 410 as a whole after the assembly can thus also be increased.Further, the terminal portions 472 may be formed at the third connection portions 478W when the plurality of second insulator portions 450W are connected to each other by the third connection portions 478W. Note that in such cases, the mating terminal portions 474 illustrated in FIG. 29 are formed at end portions on the second axial direction side of the stator core 420 from the extension side wall portions 456U, 456V. The employment of such a configuration positions the first insulator portions 440U, 440V, 440W and the second insulator portions 450U, 450V, 450W relative to each other during assembly, which improves efficiency of assembly and enables the first insulator portions 440U, 440V, 440W and the second insulator portions 450U, 450V, 450W to be stabilized and fixed.Although the configuration is made such that the second connection portions 438W are formed only on the insulator 418W, the second connection portions 438W may be formed on the other insulators 418U, 418V, or may be formed on all of the insulators 418U, 418V, 418W. Similarly, the third connection portions 478W may also be formed on the other insulators 418U, 418V, or may be formed on all of the insulators 418U, 418V, 418W.Although the first connecting portion 436U and the first connecting portions 436V, 436W are disposed with a gap existing therebetween in a radial direction of the stator core 420, and the first connecting portion 436V and the first connecting portion 436W are disposed with a gap existing therebetween in the radial direction and the axial direction of the stator core 420, the plurality of first connecting portions 436U, 436V, 436W may be disposed such that a gap exists therebetween in any direction of the radial direction or the axial direction of the stator core 420, or a direction that is a combination thereof.Further, although the terminal portions 472 are formed in recess shapes and the mating terminal portions 474 are formed in protrusion shapes, the terminal portions 472 may be formed in protrusion shapes, and the mating terminal portions 474 may be formed in recess shapes.Although the stator 410 is configured for use in an inner rotor type brushless motor, the stator 410 may also be configured for use in an outer rotor type brushless motor.Furthermore, although the stator 410 is configured to be segmented into the stator configuration sections 412U, 412V, 412W configured for each of the plurality of phases, as an example of the plurality of groups, the stator 410 may be segmented into a plurality of stator configuration sections configured by groups each including a combination of a plurality of phases.In addition to the above, a configuration including the stator configuration sections that configures each of the groups including teeth of multiple phases in other combinations may also be manufactured.Note that although the brushless motor to which the stator 410 according to the present exemplary embodiment is applied is configured from an 8 pole 12 slot (slot) motor as an example, a configuration with a motor having another combination of the number of poles and the number of slots may be made.Further, the connection method of the plurality of coil wires 416 may be configured as a star connection or a delta connection both in series and in parallel.Fifth Exemplary EmbodimentExplanation follows regarding a fifth exemplary embodiment of the present invention.Note that, for convenience in the explanation below, the letters U, V, W are omitted as additions to the labels of each element and each portion when no distinction is made between the U phase, the V phase, and the W phase.The fifth exemplary embodiment of the present invention illustrated in FIG. 34 has a locking structure 570 different from that of the fourth exemplary embodiment of the present invention in the following aspects.Namely, terminal portions 572 are formed on one member of adjacent yoke configuration portion insulator portions 554, and terminal protrusions 573 are formed on the terminal portions 572. Recess-shaped mating terminal portions 574 are further formed on the other member of the adjacent yoke configuration portion insulator portions 554. Insulator portions 534 of one of the insulators 518 of the plurality of insulators are accordingly fastened to each other by the terminal portions 572 and the mating terminal portions 574 which fit each other.When such a configuration is adopted, the rigidity between the plurality of insulator portions 534 and thus the rigidity of the stator 510 as a whole after the assembly can also be ensured by fastening the plurality of insulator portions 534 to each other with the locking structure 570.Further, since the terminal portions 572 are formed on one member of adjacent yoke configuration portion insulator portions 554 and the mating terminal portions 574 are formed on the other member of the adjacent yoke configuration portion insulator portions 554, the fitting of the terminal portions 572 and the mating terminal portions 574 to each other can be easily accomplished.Note that, as illustrated in FIG. 35, the terminal portions 572 may be formed as recess shapes in one member of the adjacent yoke configuration portion insulator portions 554, and the mating terminal portions 574 may be formed as protrusion shapes on the other member of the adjacent yoke configuration portion insulator portions 554.Further, as illustrated in FIGS. 36 and 37, the insulator portions 534 may be chamfered so as to gradually approach each other toward a second side of an axial direction (the arrow Z 2 side) of the stator 510. When such a configuration is adopted, a gap between each given pair of insulator portions 534 adjacent in the circumferential direction of the stator 510 becomes progressively narrower toward the second side of the axial direction of the stator 510 (the arrow Z 1 side), and thus the plurality of yoke configuration portions 524 come into close contact with each other after the mounting of the stator 510. Therefore, the yoke configuration sections 524 can be assembled without rattle, allowing the magnetic path formed by the yoke configuration sections 524 to be formed even more efficiently.Sixth Exemplary EmbodimentExplanation follows regarding a sixth exemplary embodiment of the present invention.In the sixth exemplary embodiment of the present invention illustrated in FIG. 38, the configuration of a locking structure 670 differs from that of the fifth exemplary embodiment of the present invention in the following aspects.Namely, the terminal portions 672U are formed on the first connection portion 636U so as to extend toward the inner side of the radial direction. The terminal protrusions 673U are formed at leading end portions of the terminal portions 672U. Recess-formed mating terminal portions 674V are formed at a first connecting portion 636V.The terminal portions 672V are also formed at the first connection portion 636V to extend toward the inner side of the radial direction. The terminal protrusions 673V are also formed at leading end portions of the terminal portions 672V. Recess-formed mating terminal portions 674W are also formed at the first connection portion 636W. The first connection portions 636U, 636V, 636W serving as the connection portions are fixed by the terminal portions 672U and the mating terminal portions 674V fitting to each other, and the terminal portions 672V and the mating terminal portions 674W fitting to each other.When such a configuration is employed, the rigidity between the plurality of first connection portions 636U, 636V, 636W and thus the rigidity of the stator as a whole after the assembly can be ensured by the locking structure 670 in which the plurality of first connection portions 636U, 636V, 636W are fastened to each other.Further, since the terminal portions 672U and the mating terminal portions 674V are formed on the first connection portions 636U, 636V, respectively, joining of the terminal portions 672U and the mating terminal portions 674V can be easily accomplished. Further, since the terminal portions 672V and the mating terminal portions 674W are formed on the first connection portions 636V, 636W, respectively, the joining of the terminal portions 672V and the mating terminal portions 674W can be easily performed.Note that the terminal portions 672U, 672V may be formed as recess shapes, and the mating terminal portions 674V, 672W may be formed as protrusion shapes.Seventh Exemplary EmbodimentExplanation follows regarding a seventh exemplary embodiment of the present invention with reference to the drawings. A stator 710 according to a seventh exemplary embodiment of the present invention illustrated in FIG. 39 has portions similar to those of the stator of the first exemplary embodiment. The explanation thus focuses on different portions, and an explanation of similar portions is omitted when appropriate.In the present exemplary embodiment, as illustrated in FIGS. 39 and 40A, in a U-phase stator configuration portion 712U, a coil wire 716U configuring a U-phase includes a plurality of winding portions 726U and a plurality of crossing wires 728U. The coil wire 716U is continuously formed from one end to the other end. The coil wire 716U is concentrically wound around the plurality of winding portions 726U on tooth portions 724U with insulator portions 732U (insulator main body portions 733U) described later being respectively interposed therebetween. The winding portions 726U are mutually connected to each other by the plurality of crossing wires 728U. The crossing wires 728U are laid out (wound) around the outer peripheral surface of a first connection portion 734U formed on an insulator 718U described later. Terminal portions 730U on both end sides of the coil wire 716U are led out from the tooth portions 724U to a first axial direction side (the arrow Z 1 side) of the stator 710.The insulator 718U is made of a resin and includes the plurality of insulator portions 732U and a first connection portion 734U which have been integrated with each other. The number of the plurality of insulator portions 732U provided is the same as the number of the plurality of tooth portions 724U mentioned above. The plurality of insulator portions 732U include insulator main body portions 733U, extension side wall portions 735U, and radial direction extension portions 737U. The insulator main body portions 733U are integrated with the respective surfaces of the plurality of core configuration portions 714U, for example, by integrated casting or mounting by closing means. The insulator main body portions 733U insulate between the tooth portions 724U formed at the core configuration portions 714U and the winding portions 726U. The extension side wall portions 735U are positioned further on the inner side in a radial direction of the stator configuration portion 712U than the core configuration portions 714U (as the insulator main body portions 733U). The radial direction extending portions 737U extend in the radial direction of the stator configuration portion 712U from the first connection portion 734U. The extension side wall portions 735U extend toward a second axial direction side (Z 2 side) of the stator configuration portion 712U from extension ends of the radial direction extension portions 737U, and connect together the insulator main body portions 733U and the radial direction extension portions 737U. The extension side wall portions 735U and the radial direction extension portions 737U configure extending portions 739U that connect the insulator main body portions 733U and the first connection portion 734U to each other.The first connection portion 734U is provided at a first axial direction side (Z 1 side) of the plurality of insulator portions 732U. The first connection portion 734U is formed in a ring shape, connects together the plurality of insulator portions 732U (or more specifically, base end portions of the radial direction extension portions 737U of the plurality of insulator portions 732U), and is positioned further inward in a radial direction than the core configuration portions 714U. A plurality of projection-shaped holding portions 736U project outward from an outer peripheral surface of the first connection portion 734U toward a radial direction between the plurality of insulator portions 732U. The holding portions 736U hold the above-mentioned crossing wires 728U from the second side of the axial direction (the arrow Z 2 side) of the first connection portion 734U.A V-phase stator configuration portion 712V illustrated in FIG. 40B has a similar basic configuration to the U-phase stator configuration portion 712U described above. In the V-phase stator configuration portion 712V, a first connection portion 734V is formed in a ring shape and is formed with a smaller diameter than the above-described U-phase first connection portion 734U (see FIG. 40A ). Holding portions 736V hold crossing wires 728V from a first axial direction side (the arrow Z 1 side) of the first connection portion 734V, and are positioned further inward toward a radial direction than core formation portions 714V.The plurality of insulator portions 732V include insulator main body portions 733V, extension side wall portions 735V, and radial direction extension portions 737V. The insulator main body portions 733V are integrated with respective surfaces of the plurality of core configuration portions 714V, for example, by integral molding or by fitting by closing. The insulator main body portions 733V insulate between tooth portions 724V formed on the core configuration portions 714V and winding portions 726V. The extension side wall portions 735V are positioned further inward in a radial direction from the stator configuration portion 712V than the core configuration portions 714V (as the insulator main body portions 733V). The radial direction extending portions 737V extend in the radial direction from the stator configuration portion 712V from the first connection portion 734V. The extension side wall portions 735V extend toward a second axial direction side (side Z 2) of the stator configuration portion 712V from extension ends of the radial direction extension portions 737V, and connect together the insulator main body portions 733V and the radial direction extension portions 737V. The extension side wall portions 735V and the radial direction extension portions 737V configure extending portions 739V that connect the insulator main body portions 733V and the first connection portion 734V to each other. The first connection portion 734V is provided on the first axial direction side (side Z 1) of the plurality of insulator portions 732V. The first connection portion 734V is formed in a ring shape, connects the plurality of insulator portions 732V to each other, and is positioned further inward toward a radial direction than the core formation portions 714V.Also, a W-phase stator configuration portion 712W illustrated in FIG. 40C has a similar basic configuration to the above-described U-phase stator configuration portion 712U. In the W-phase stator configuration portion 712W, a first connection portion 734W is formed in a ring shape and is formed with a smaller diameter than the first V-phase connection portion 734V described above (see FIG. 40B ). The holding portions 736W hold crossing wires 728W from a first side of an axial direction (the side of arrow Z 1) of a first connection portion 734W, and are positioned more inward in a radial direction than the core configuration portions 714W.The plurality of insulator portions 732W include insulator main body portions 733W, extension side wall portions 735W, and radial direction extension portions 737W. The insulator main body portions 733W are integrated on respective surfaces of the plurality of core configuration portions 714W, for example, by integral molding or lock mounting. The insulator main body portions 733W insulate between tooth portions 724W formed on the core configuration portions 714W and winding portions 726W. The extension side wall portions 735W are positioned more inward in a radial direction of a stator configuration portion 712W than the core configuration portions 714W (than the insulator main body portions 733W). The radial direction extending portions 737W extend in a radial direction of the stator configuration portion 712W from the first connection portion 734W. The extension side wall portions 735W extend toward a second axial direction side (Z 2 side) of the stator configuration portion 712W from extension ends of the radial direction extension portions 737W, and together connect the insulator main body portions 733W and the radial direction extension portions 737W. The extension side wall portions 735W and the radial direction extension portions 737W configure extending portions 739W that together connect the insulator main body portions 733W and the first connection portion 734W. The first connection portion 734W is provided on the first axial direction side (Z 1 side) of the plurality of insulator portions 732W. The first connection portion 734W is formed in a ring shape, collectively connects the plurality of insulator portions 732W (or more specifically, extension end portions (end portions on the radially inner direction) of the extension side wall portions 735W of the plurality of insulator portions 732W), and is positioned more inward in the radial direction than the core configuration portions 714W.The plurality of first connecting portions 734U, 734V, 734W are arranged in a radially inner direction of a yoke 740. The plurality of first connecting portions 734U, 734V, 734W are disposed with gaps between each other in the radial direction and the axial direction of the yoke 740, and are provided coaxially with the yoke 740. The V-phase holding portions 736V are fitted against an inner peripheral surface of the first U-phase connecting portion 734U, and the W-phase holding portions 736W are fitted against an inner peripheral surface of the first V-phase connecting portion 734V. The plurality of first connecting portions 734U, 734V, 734W are accordingly held in a separated state from each other in a radial direction. Namely, the holding portions 736U, 736V, 736W are provided between the plurality of first connection portions 734U, 734V, 734W in the radial direction, and also function as protrusion-shaped spacers that hold the plurality of first connection portions 734U, 734V, 734W in a state separated from each other in a radial direction.Further, as illustrated in FIG. 40A, of the above-described crossing wires 728U, a crossing wire 728U 1 connected to the winding start end portion of one of the winding portions 726U and a crossing wire 728U 2 connected to a winding end portion of this winding portion 726U cross each other over the radial direction extension portions 737U of the first connection portion 734U and the insulator portions 732U. The radial direction extending portions 737U are examples of a connection environment between the first connection portion 734U and the insulator portions 732U. Namely, in the present exemplary embodiment, as an example, intersecting portions 729U are provided between the crossing wire 728U 1 connected to the winding start end portion of one of the winding portions 726U and the crossing wire 728U 2 connected to a winding end portion of this winding portion 726U at positions overlapping with the radial direction extending portions 737U when viewed along the axial direction of the stator configuration portion 712U.Further, as illustrated in FIGS. 40B, 40C, the crossing wires 728V, 728W are similar to the crossing wires 728U described above. Namely, as illustrated in FIG. 40B, intersecting portions 729V are arranged between the crossing wire 728V 1 connected to the winding start end portion of one of the winding portions of a V phase 726V and the crossing wire 728V 2 connected to a winding end portion of this winding portion 726V at positions overlapping with the radial direction extending portions 737V when viewed along the axial direction of the stator configuration portion 712V. As illustrated in FIG. 40C, intersecting portions 729W between the crossing wire 728W 1 connected to the winding start end portion of one of the winding portions of the W phase 726W and the crossing wire 728W 2 connected to a winding end portion of this winding portion 726W are disposed at positions overlapping with the radial direction extending portions 737W when viewed along the axial direction of the stator forming portion 712W.Note that the U-phase stator configuration portion 712U illustrated in FIG. 40A includes terminal portions 730U connected to two of the winding portions 726U among the four winding portions 726U, and crossing wires 728U connected to the remaining two winding portions 726U. Of the two winding portions 726U connected to these crossing wires 728U, one of the crossing wires 728U 2 connected to the winding end portion of a first one of the winding portions 726U is connected to the winding start end portion of another one of the winding portions 726U, in turn. The crossing wire 728U 1 connected to the winding start end portion of one of the winding portions 726U is connected to the winding end portion of one of the winding portions 726U of the two winding portions 726U connected to the terminal portions 730U. A crossing wire 728U 2 connected to the winding end portion of another one of the winding portions 726U is connected to the winding start end portion of the other winding portions 726U of the two winding portions 726U connected to the terminal portions 730U. The same applies to the coil wires 716V, 716W shown in FIGS. 40B and 40C.As illustrated in FIG. 42, the stator 710 configured as described above configures an inner rotor type brushless motor 760 together with a rotor 750 and a housing 770. The configuration in the brushless motor 760 is such that a rotating magnetic field is formed by the stator 710 and the rotor 750 is thereby rotated. Note that the brushless motor 760 is, for example, a motor having 8 poles and 12 slots.Explanation follows regarding a manufacturing method of the stator 710 configured as described above.First, as illustrated in FIG. 40A, the core configuration sections 714U are integrated to the insulator sections 732U of the insulator 718U to form a U-phase sub-assembly 742U configured of the insulator 718U and the plurality of core configuration sections 714U. Similarly, as illustrated in FIG. 40B, the core configuration sections 714V are integrated with the insulator sections 732V of the insulator 718V to form a V-phase subassembly 742V configured of the insulator 718V and the plurality of core configuration sections 714V. Further, as illustrated in FIG. 40C, the core configuration sections 714W are integrated with the insulator sections 732W of the insulator 718W to form a W-phase subassembly 742W configured of the insulator 718W and the plurality of core configuration sections 714W. Thus, the subassemblies 742U, 742V, 742W are formed for each of the U phase, the V phase, and the W phase (subassembly forming process).Next, as illustrated in FIG. 40A, a vane winding machine 100 (see FIG. 5 ) is used to wind the coil wire 716U onto each of the tooth portions 724U of the U-phase subassembly 742U from the radial direction from the outside, forming the U-phase stator configuration portion 712U with the plurality of winding portions 726U formed on the subassembly 742U. Note that the vane winding machine 100 is configured as illustrated in FIG. 5, including a vane 101 that wraps the coil wires 716 in a circular motion to encircle the periphery of each of the tooth portions 724, a variable shaper 102 that aligns the coil wires 716 wound on the tooth portions 724, and a drive circuit 103 that controls the vane 101 and the variable shaper 102.Similarly, as illustrated in FIG. 40B, the above-mentioned vane winding machine 100 is used to wind the coil wire 716V onto each of the tooth portions 724V of the V-phase subassembly 742V from the radial direction from the outside, forming the V-phase stator configuration portion 712V with the plurality of winding portions 726V formed on the subassembly 742V. Further, as illustrated in FIG. 40C, the above-mentioned vane winding machine 100 is used to wind the coil wire 716W onto each of the tooth portions 724W of the W-phase subassembly 742W from the radial direction from the outside, forming the W-phase stator configuration portion 712W with the plurality of winding portions 726W formed on the subassembly 742W.When this is done, as illustrated in FIG. 40A, the plurality of crossing wires 728U are laid out along an outer peripheral surface of the first connection portion 734U. The plurality of crossing wires 728U are also held from a second side of an axial direction (arrow Z 2 side) of the first connection portion 734U by protrusion-shaped holding portions 736U. Further, the configuration is made such that the crossing wire 728U 1 connected to the winding start end portion of one of the winding portions 726U and the crossing wire 728U 2 connected to the winding end portion of this winding portion 726U cross each other on the respective radial direction extension portion 737U of the first connection portion 734U and the insulator portion 732U. When this occurs, the crossing wire 728U 1 and the crossing wire 728U 2 are crossed so tightly that slack does not occur in the winding portions 726U.Similarly, as illustrated in FIG. 40B, the plurality of crossing wires 728V are laid out along an outer peripheral surface of the first connection portion 734V. The plurality of crossing wires 728V are also held from the first axial direction side (the arrow Z 1 side) of the first connection portion 734V by the projection-shaped holding portions 736V. Further, a configuration is made such that the crossing wire 728V 1 connected to the winding start end portion of one of the winding portions 726V and the crossing wire 728V 2 connected to the winding end portion of this winding portion 726V cross each other on the radial direction extension portion 737V of the first connection portion 734V and the insulator portion 732V, respectively.Further, as illustrated in FIG. 40C, the plurality of crossing wires 728W are laid out along an outer peripheral surface of the first connection portion 734W. The plurality of crossing wires 728W are also held from the first axial direction side (the arrow Z 1 side) of the first connection portion 734W by the projection-shaped holding portions 736W. Further, the configuration is made such that the crossing wire 728W 1 connected to the winding start end portion of one of the winding portions 726W and the crossing wire 728W 2 connected to the winding end portion of this winding portion 726W cross each other on the radial direction extension portion 737W of the first connection portion 734W and the insulator portion 732W, respectively.As illustrated in FIG. 40A, the terminal portions 730U on the both end sides of the coil wire 716U are laid out from the tooth portions 724U to the first axial direction side (the arrow Z 1 side) of the stator 710. Similarly, as illustrated in FIG. 40B, the terminal portions 730V on the two end sides of the coil wire 716V are laid out from the tooth portions 724V toward the first axial direction side of the stator 710. Further, as illustrated in FIG. 40C, the terminal portions 730W on the two end sides of the coil wire 716W are laid out from the tooth portions 724W toward the first axial direction side of the stator 710. Thus, the stator configuration sections 712U, 712V, 712W are formed for each of the U phase, the V phase, and the W phase (stator configuration section forming process).Then, as illustrated in FIGS. 41A and 41B, in a state in which the V-phase stator configuration portion 712V is offset by a specific angle in a circumferential direction with respect to the W-phase stator configuration portion 712W, the V-phase stator configuration portion 712V is mounted on the W-phase stator configuration portion 712W from the first axial direction side (the arrow Z 1 side). Then, in a state in which the U-phase stator configuration portion 712U is offset by a specific angle in a circumferential direction with respect to the V-phase stator configuration portion 712V, the U-phase stator configuration portion 712U is mounted on the V-phase stator configuration portion 712V and the W-phase stator configuration portion 712W from the first axial direction side (the arrow Z 1 side).When this is done, each of the plurality of yoke configuration sections 722U, 722V, 722W is fitted between respective pairs of yoke configuration sections adjacent to both sides. The V-phase holding portions 736V are fitted against an inner peripheral surface of the first U-phase connecting portion 734U, and the W-phase holding portions 736W are fitted against an inner peripheral surface of the first V-phase connecting portion 734V. Thus, the plurality of first connection portions 734U, 734V, 734W are held in a state separated from each other in the radial direction by the projection-shaped holding portions 736U, 736V, 736W.The plurality of stator configuration sections 712U, 712V, 712W are thus assembled together in this manner to form the stator 710 (stator configuration process). Note that the terminal portions 730U, 730V, 730W are connected by a circular bar or the like not illustrated in the drawings. Accordingly, by the above processes, the stator 710 is manufactured.Explanation follows regarding the operation and advantageous effects of the seventh exemplary embodiment of the present invention.Note that in the following explanation, for the sake of simplicity, the letters U, V, W are omitted as additions to the numerals of each element and each portion when no distinction is made between the U phase, the V phase, and the W phase.According to the present exemplary embodiment, the yoke 740 is configured by the plurality of yoke configuration sections 722U segmented in the circumferential direction. Therefore, even in a stator used in a so-called inner rotor type brushless motor in which a plurality of tooth portions 724 project in a radial direction toward the inside of a yoke 740, the subassemblies 742 for each of the U phase, the V phase, and the W phase are formed as described above, and the coil wires 716 can be wound on each of the tooth portions 724 of each of the subassemblies 742 from the outside in the radial direction of the yoke 740 using a vane winding machine 100 (see FIG. 5 ). Accordingly, it is not necessary to ensure a space between the tooth portions 724 as would be required when a nozzle machine is employed, which makes it possible to achieve a denser arrangement of the coil wires 716 and which makes it possible to realize a more compact stator 710.Furthermore, as described above, the yoke 740 is segmented into the plurality of yoke configuration sections 722 in the circumferential direction, and thus, for example, the stator 710 can be made more compact in the axial direction as compared with cases where the yoke 740 is segmented into a plurality of yoke configuration sections in the axial direction.When the vane winding machine 100 is used, since the winding speed of the coil wires 716 is higher than when using a nozzle machine, the process of winding the coil wires 716 can be accelerated, and accordingly, a reduction in the cost of the stator 710 can be achieved due to the reduction in the number of equipment units.Further, in each of the plurality of groups (the U phase, the V phase, the W phase), the stator configuration sections 712 adjacent to the plurality of core configuration sections 714 are arranged with a gap corresponding to two core configuration sections existing therebetween. Accordingly, as described above, the rotary winder 100 can be prevented from interfering with the other core configuration sections 714 even when the rotary winder 100 is used to wind the coil wires 716 on each of the tooth sections 724 of each of the subassemblies from the radial direction from the outside.Further, the coil wire 716U is continuously formed from one end to the other end, and including the crossing wires 728U that are laid out along the first connection portion 734U and that together connect the plurality of winding portions 726U. Accordingly, occurrence of slack of the winding portions 726U from the tooth portions 724U can be avoided.Further, the crossing wire 728U 1 connected to the winding start end portion of one of the winding portions 726U and the crossing wire 728U 2 connected to the winding end portion of these winding portions 726U cross each other in the connection environment between the first connection portion 734U and the respective insulator portion 732U. Accordingly, occurrence of slack of the winding portions 726U from the tooth portions 724U can be more effectively prevented.Specifically, the radial direction extending portions 737U extending in the radial direction from the stator configuration portion 712U are formed into the extending portions 739U, which together connect insulator main body portions 733U and the first connection portion 734. The crossing portions 729U of the above-described crossing wires 728U 1, 728U 2 are disposed at positions overlapping with the radial direction extending portions 737U when viewed along the axial direction of the stator configuration portion 712U. The above-described crossing wires 728U 1, 728U 2 accordingly cross in a space secured by the radial direction extending portions 737U, and thus the occurrence of loosening of the winding portions 726U from the tooth portions 724U can be more effectively prevented accordingly.Further, due to the V-phase crossing wires 728V 1, 728V 2 and the W-phase crossing wires 728W 1, 728W 2 also crossing with the U-phase crossing wires 728U 1, 728U 2 in a similar manner, occurrence of loosening of the winding portions 726V, 726W from the tooth portions 724V, 724W can be suppressed, respectively.Although the tooth portions 724 project from the yoke configuration portions 722 toward the inner side of the radial direction of the yoke 740, the yoke 740 is configured by the plurality of yoke configuration portions 722 segmented in the circumferential direction of the yoke 740, and thus the coil wires 716 can be wound on each of the tooth portions 724 of each of the subassemblies from the radial direction from the outside using the rotary winder 100.Further, in each of the stator configuration sections 712, the first connection sections 734 are respectively positioned more toward the radially inward direction than the core configuration sections 714. Accordingly, interference between the blade of the rotary winder 100 and the first connecting portions 734 can be prevented from occurring when the coil wires 716 are wound respectively on the tooth portions 724 from the radial direction from the outside using the rotary winder 100.Further, the plurality of yoke configuration sections 722 are integrally formed on the tooth sections 724. Magnetic loss at each of the first connecting portions can be suppressed accordingly, as compared with, for example, a two-part type core including independent members of the plurality of tooth portions, having leading end portions connected to each other by thinned bridging portions, and a yoke connecting together base end portions of the tooth portions. Namely, magnetic loss occurs at three locations in the two-piece type core, at the bridging portions between the leading end portions of pairs of adjacent tooth portions, at the base end portions of pairs of tooth portions, and at the first connecting portion of the yoke. In contrast, in the stator 710 of the present exemplary embodiment, magnetic loss occurs only at a location, the first connection portion, between pairs of adjacent yoke configuration portions 722, making it possible to reduce the magnetic loss. It is accordingly possible to achieve even greater compactness and reduction in weight.Although in the present exemplary embodiment, in each of the stator configuration sections 712, all of the crossing wires 728 cross each other at the crossing vicinity between the first connection sections 734 and the insulator sections 732, a configuration may be made such that one or more of the crossing wires 728 do not cross each other, as illustrated in FIG. 43. Namely, when there are cases where the crossing wires 728 are tightly wound to cross each other as illustrated in FIG. 40C, a configuration can be made with any of the crossing wires 728 loosely wound without crossing.In the present exemplary embodiment, the radial direction extending portions 737 extending in the radial direction of the stator configuration sections 712 are formed to the extending portions 739, and the crossing portions 729 of the above-described crossing wires 728 are provided at positions overlapping with the radial direction extending portions 737 as viewed along the axial direction of the stator configuration sections 712. However, a configuration may be made such that the axial direction extending portions to the extending portions 739 are formed to extend in an axial direction of the stator configuration portions 712, and the intersecting portions 729 of the above crossing wires 728 are arranged at positions overlapping with the axial direction extending portions when viewed along a radial direction of the stator configuration portions 712. Loosening of the winding portions 726 from the tooth portions 724 can also be prevented from occurring under the employment of such a configuration.Furthermore, although the crossing wires 728 are laid out along the first connection portions 734, a configuration having a straight line extended configuration in which a voltage is applied to the crossing wires that are not laid out along the first connection portions 734 can be manufactured.Eighth Exemplary EmbodimentExplanation follows regarding an eighth exemplary embodiment of the present invention. A stator 810 according to the eighth exemplary embodiment of the present invention illustrated in FIG. 44 has similar portions to those of the stator of the first exemplary embodiment. The explanation thus focuses on different portions, and an explanation of similar portions is omitted when appropriate.As illustrated in FIG. 45A, in a U-phase stator configuration portion 812, an insulator 818U includes a plurality of insulator portions 832U formed of resin. The number of the plurality of insulator portions 832U provided is the same as the number of the plurality of tooth portions 824U. The plurality of insulator portions 832U respectively include insulator main body portions 833U and extension side wall portions 835U. The insulator main body portions 833U are integrated with respective surfaces of a plurality of core configuration portions 814U, for example, by integral molding or by interlocking mounting. The insulator main body portions 833U insulate between the tooth portions 824U formed at the core configuration portions 814U and the winding portions 826U. The extension side wall portions 835U are positioned further inward in a radial direction of the stator configuration portion 812U than the core configuration portions 814U (as the insulator main body portions 833U). The extension side wall portions 835U extend from a first connection portion 834U toward a second axial direction side (arrow Z 2 side) of the stator configuration portion 812U, and together connect the insulator main body portions 833U and the first connection portion 834U.A V-phase stator configuration section 812V illustrated in FIG. 45B also has a similar basic configuration to the above-described U-phase stator configuration section 812U.The plurality of insulator portions 832V include respective insulator main body portions 833V, extension side wall portions 835V, and radial direction extension portions 837V. The insulator main body portions 833V are integrated with respective surfaces of the plurality of core configuration portions 814V, for example, by integral casting or interlocking mounting. The insulator main body portions 833V insulate between the tooth portions 824V formed at the core configuration portions 814V and the winding portions 826V. The extension side wall portions 835V are positioned further inward in a radial direction of the stator configuration portion 812V than the core configuration portions 814V (as the insulator main body portions 833V). The radial direction extending portions 837V extend outward in the radial direction from the stator configuration portion 812V from the first connection portion 834V. The extension side wall portions 835V extend from extension ends of the radial direction extension portions 837V toward a second axial direction side (Z 2 side) of the stator configuration portion 812V, and together connect the insulator main body portions 833V and the radial direction extension portions 837V. The first connection portion 834V is provided at a first axial direction side (Z 1 side) of the plurality of insulator portions 832V. The first connection portion 834V is formed in a ring shape, connects together the plurality of insulator portions 832V, and is positioned more inward toward the radial direction than the core formation portions 814V.A W-phase stator configuration section 812W illustrated in FIG. 45C also has a basic configuration as the above-described U-phase stator configuration section 812U.The plurality of insulator portions 832W include respective insulator main body portions 833W, extension side wall portions 835W, and radial direction extension portions 837W. The insulator main body portions 833W are integrated on respective surfaces of a plurality of core configuration portions 814W, for example, by integral casting or by interlocking mounting. The insulator main body portions 833W insulate between tooth portions 824W formed on the core configuration portions 814W and winding portions 826W. The extension side wall portions 835W are positioned further inward in a radial direction of the stator configuration portion 812W than the core configuration portions 814W (as the insulator main body portions 833W). The radial direction extending portions 837W extend outward in the radial direction from the stator configuration portion 812W from the first connection portion 834W. The extension side wall portions 835W extend from extension ends of the radial direction extension portions 837W toward a second axial direction side (arrow Z 2 side) of the stator configuration portion 812W, and together connect the insulator main body portions 833W and the radial direction extension portions 837W. The first connection portion 834W is provided on a first side of an axial direction (the arrow Z 1 side) of the plurality of insulator portions 832W. The first connection portion 823W is formed in a ring shape, collectively connects the plurality of insulator portions 832W (or more specifically, extension end portions (end portions on the radial direction on the inner side) from the extension side wall portions 835W of the plurality of insulator portions 832W), and is positioned more inward toward the radial direction than the core configuration portions 814W.Further, in a state in which the plurality of first connection portions 834U, 834V, 834W are provided with gaps therebetween in a radial direction of the yoke 840, V-phase crossing wires 828V pass through the inside of recesses 838U formed in the first U-phase connection portion 834U (accommodated in the recesses 838U), and W-phase crossing wires 838W pass through inner recesses 838V formed in the first V-phase connection portion 834V and through inner recesses 838U, which are formed in the first connection portion of a U phase 834U (accommodated in the recesses 838U and the recesses 838V) (see FIG. 46B ). The recesses 838U, 838V are examples of a housing portion of the present invention.In each of the stator configuration sections 812U, 812V, 812W of the above-described plurality of groups, as illustrated in FIG. 48, the positional relationship between one of the core configuration sections 814 and another one of the core configuration sections 814 that is adjacent to this core configuration section 814 as set forth below, when an imaginary tangential line X passes through the extension side wall section 835 in a tangential direction to the stator configuration section 812, an end portion of a circumferential direction 822A of a yoke configuration section 822 is positioned at one of the core configuration sections 814 on the opposite side with respect to the imaginary tangential line X from the other core configuration section 814. Note that the imaginary tangential line X may pass through the extension side wall portions 835 at any position on the extension side wall portion 835, in a plan view.In each of the stator configuration sections 812U, 812V, 812W of the plurality of groups, the winding sections are pressed and deformed into compression (packed at high density) by a press 104 which will be described later (see FIGS. 49 and 50 ).Explanation follows regarding the method for manufacturing the stator 810 configured as described above. A process of forming a sub-assembly and a process of forming a stator formation portion are substantially the same as those of the first exemplary embodiment.In each of the stator configuration sections 812U, 812V, 812W of the plurality of groups, as illustrated in FIG. 49 and FIG. 50, the winding sections 826 are pressed and deformed into compression by the press 104 (compression process). When this is performed, the winding portions 826 are pressed from both sides in a direction intersecting (for example, orthogonal to) with the axial direction of the tooth portions 824. Further, the winding portions 826 are pressed such that a pressing direction to the winding portions 826 is arranged in a tangential direction to the stator configuration portion 812.Explanation follows regarding the operation and advantageous effects of the eighth exemplary embodiment of the present invention.In each of the stator configuration sections 812 of the plurality of groups, as illustrated in FIG. 48, when the imaginary tangential line X passes through the extension side wall section 835 in a tangential direction to the stator configuration section 812, the circumferential direction end portions 822A of the yoke configuration section 822 of one of the core configuration sections 814 are positioned on the opposite side with respect to the imaginary tangential line X to the other core configuration sections 814 that are adjacent to this core configuration section 814. Consequently, even when the coil wires 816 are wound on each of the tooth portions 824 of each of the subassemblies from the radial direction from the outside using the rotary winding machine 100, the rotary winding machine 100 can be prevented from interfering with the other core configuration portions 814, and particularly, from interfering with the circumferential direction end portions 822A of the yoke configuration portion 822.Namely, assuming that, as illustrated in FIG. 56, a circumferential direction end portion 1122A of a yoke configuration portion 1122 is positioned in one of the core configuration portions 1114 on the same side with respect to the imaginary tangential line X to another one of the core configuration portions 1114, the rotary winder 100 would interfere with the circumferential direction end portion 1122A of the yoke configuration portion 1122 from the other core configuration portions 1114. However, according to the present exemplary embodiment, such a disturbance can be prevented from occurring.Further, the coil portions 826 are pressed by the press 104 and deformed into compression (packed at high density). Accordingly, bulges of the winding portions 826 are avoided, a high density arrangement of the coil wires 816 can be achieved, and a space for the pressing operation of the press 104 can also be secured.Further, in the compression process, the coil portions 826 are pressed in a direction intersecting with the axial direction of the tooth portions 824. Therefore, as illustrated in FIG. 49, even in cases where gaps occur between the tooth portions 824 and the winding portions 826, or in cases where gaps between individual strands of coil wire are left in the winding portions 826, bulging of the winding portions 826 can be more easily avoided, and high-density arrangement of the coil wires 816 can be achieved. In particular, the coil wires 816 can be more easily deformed in compression due to pressing of the coil portions 826 from both sides in a direction intersecting with the axial direction of the tooth portions 824.In the compression process, moreover, the winding portions 826 are pressed such that the pressing direction on the winding portions 826 is a tangential direction to the stator configuration portion 812. In each of the plurality of groups of the stator configuration sections 812, adjacent core configuration sections 814 are provided while a space of two core configuration sections is maintained between the adjacent core configuration sections 814. Accordingly, the coil portions 826 can be pressed while still preventing the press 104 from interfering with the nucleation portions 814.Ninth Exemplary EmbodimentExplanation follows regarding a ninth exemplary embodiment of the present invention.In the eighth exemplary embodiment of the present invention, the stator 810 is applied to an inner rotor type motor, and the tooth portions 824 project from the yoke configuration portion 822 toward the inner side of a radial direction of the yoke 840. However, as illustrated in FIGS. 51 and 52, a stator 910 according to the ninth exemplary embodiment of the present invention is applied to an outer rotor type motor. The tooth portions 924 project from a yoke configuration portion 922 toward an outer side in a radial direction of a yoke 940. Yoke configuration portions 923 are formed at leading end portions of the tooth portions 924. Note that the stator 910 is applied to a motor having 10 poles and 12 slots or having 14 poles and 12 slots. In aspects other than the above, the configuration of the present exemplary embodiment is substantially the same as that of the eighth exemplary embodiment of the present invention.When such a configuration is adopted, a distance between leading end portions of adjacent tooth portions 924 can be secured, and therefore a coil wire winding machine for winding the coil wires 916 on each of the tooth portions 924 from the radial direction from the outside can be adopted. Namely, even if the end portions of a circumferential direction of the yoke configuration portions 923 of one of the tooth portions 924 are positioned on the same side with respect to the above imaginary tangential line X (see FIG. 48 ) as the other tooth portions 924, interference of a vane winding machine with the tooth portions 924 (the yoke configuration portions 923) can be prevented as compared with the conventional cases by employing, for example, an unillustrated variable shaper.Note that in the present exemplary embodiment, as illustrated in FIG. 52, the adjacent yoke configuration sections 922 may be fitted together with recess-and-protrusion shaped terminal sections 944. The employment of such a configuration makes it possible to increase the rigidity of the yoke 940.Tenth Exemplary EmbodimentExplanation follows regarding a tenth exemplary embodiment of the present invention.A stator 10140 according to the tenth exemplary embodiment of the present invention illustrated in FIG. 53 has a configuration changed in the following manner from the stator 910 according to the ninth exemplary embodiment of the present invention described above. Namely, as illustrated in FIGS. 54A and 54C, the stator 10140 is segmented into stator configuration sections 1012A, 1012B, 1012C configured for each of the groups including multiple phases. Note that the stator 10140 is applied to, for example, a brushless motor 1060 having 10 poles and 12 slots.As illustrated in FIG. 54A, the stator configuration portion 1012A configuring a first group includes a +U-phase tooth portion 1024U, a -U-phase tooth portion 1024U, a +W-phase tooth portion 1024W, and a -W-phase tooth portion 1024W. Further, as illustrated in FIG. 54B, the stator configuration section 1012B configuring a second group includes a +V-phase tooth section 1024V, a - V-phase tooth section 1024V, a +W-phase tooth section 1024W, and a -W-phase tooth section 1024W. Further, as illustrated in FIG. 54C, the stator configuration section 1012C configuring a third group includes a +U-phase tooth section 1024U, a -U-phase tooth section 1024U, a +V-phase tooth section 1024V, and a -V-phase tooth section 1024V. Thus, each of the stator configuration sections 1012A, 1012B, 1012C is configured by a combination of mutually different phases (U phase, V phase, W phase).Further, in each of the stator configuration sections 1012A, 1012B, 1012C, the plurality of tooth sections 1024 are arranged at equal intervals from each other (for example, at 90 degrees in the present exemplary embodiment). As illustrated in FIG. 53, in each of the stator configuration sections 1012A, 1012B, 1012C, two core configuration sections 1014 (tooth sections 1024) of other stator configuration sections are arranged between each adjacent pair of core configuration sections 1014 (tooth sections 1024).As illustrated in FIG. 54A, the coil wire 1016U is wound on the -U-phase tooth portion 1024 in a tension direction (forward) and on the +U-phase tooth portion 1024 in a releasing direction (reverse direction). Namely, the winding portions 1026U and the crossing wires 1028U in the coil wire 1016U are connected to each other by a guide portion 1046 led out from the tooth portion 1024U. The coil wire 1016U is wound in the clamping direction when, as viewed along an axial direction of the stator configuration portion 1012A, the guide portion 1046 extends so as to cross with the radial direction of the stator configuration portion 1012A (when overlapping with the core configuration portion 1014U). However, the coil wire 1016U is wound in the releasing direction when, as viewed along the axial direction of the stator configuration portion 1012A, the guide portion 1046 extends along the radial direction of the stator configuration portion 1012A (when it does not overlap with the core configuration portion 1014U).Similarly, as illustrated in FIG. 54A, the coil wire 1016W is wound on the +W-phase tooth portion 1024 in the tension direction, and the coil wire 1016W is wound on the +W-phase tooth portion 1024 in the disengagement direction. Further, as illustrated in FIG. 54B, the coil wire 1016V is wound on the -V-phase tooth portion 1024 in the tension direction, and the coil wire 1016V is wound on the +V-phase tooth portion 1024 in the detachment direction. The coil wire 1016W is wound on the +W-phase tooth portion 1024 in the tension direction, and the coil wire 1016W is wound on the -W-phase tooth portion 1024 in the detachment direction. Further, as illustrated in FIG. 54C, the coil wire 1016U is wound on the +U-phase tooth portion 1024U in the tension direction, and the coil wire 1016U is wound on the -U-phase tooth portion 1024U in the detachment direction. The coil wire 1016V is wound on the +V-phase tooth portion 1024V in the tension direction, and the coil wire 1016V is wound on the -V-phase tooth portion 1024V in the detachment direction.Thus, of the plurality of winding portions 1026, pairs of winding portions 1026 opposing each other across central axes of the plurality of stator configuration portions 1012A, 1012B, 1012C are formed with the same coil wire 1016 and are formed with opposite winding directions to each other. Note that in order to prevent a flow of circulating currents occurring when a parallel circuit is configured using a plurality of coil wires 1016, preferably two circuit systems without parallel circuits are configured or a plurality of parallel circuits are combined such that circulating currents are not generated (so-called canceling winding) although parallel circuits are formed.Of the pairs of winding portions 1026 that are opposed to each other across the central axes of the plurality of stator configuration portions 1012A, 1012B, 1012C, the winding portion 1026 wound on the tooth portion 1024 in the releasing direction and the crossing wire 1028 between the pair of winding portions 1026 are connected to each other by the guide portion 1046 that leads out from the tooth portions 1024.Further, as illustrated in FIG. 55, a protrusion portion 1048 is formed on an insulator 1018, and the guide portion 1046 is anchored to the protrusion portion 1048. The insulator 1018 is formed with insulator main body portions 1033 and extension side wall portions 1035. The insulator main body portions 1033 insulate between the tooth portions 1024 integrated on the core configuration portions 1014 and the winding portions 1026. The extension side wall portions 1035 extend in an axial direction of the stator configuration portion 1012 from a first connection portion 1034 and together connect the insulator main body portions 1033 and the first connection portion 1034. More specifically, the protrusion portion 1048 is formed at an end portion in an extending direction of the extending side wall portions 1035 (the same direction as the axial direction of the stator configuration portion 1012). Of the pairs of winding portions 1026 described above, at the winding portion 1026 wound on the tooth portion 1024 in the releasing direction, the guide portion 1046 is prevented from loosening by being anchored to the protrusion portion 1048.Note that other parts of the configuration in the present exemplary embodiment are similar to those of the eighth and ninth exemplary embodiments of the present invention.Due to the employment of such a configuration, the plurality of tooth portions 1024 are arranged at equal intervals in each of the stator configuration portions 1012, and separation between the tooth portions 1024 is ensured. Accordingly, the coil wires 1016 can be easily wound on the tooth portions 1024.Further, the winding portions 1026 wound on the tooth portions 1024 in the releasing direction are prevented from loosening by anchoring the guide portions 1046 to the protrusion portions 1048. Accordingly, loosening of the winding portions 1026 wound on the tooth portions 1024 in the loosening direction can be suppressed.Note that, in the present exemplary embodiment, the stator 10140 illustrated in FIG. 53 is applied to an outer rotor type motor, and the tooth portions 1024 protrude from the yoke configuration portions 1022 toward a radial direction outward of the yoke 1040. However, the stator 10140 may be applied to an inner rotor type motor in which the tooth portions 1024 are configured to protrude inward from the yoke 1040 from the yoke configuration portions 1022 toward the radial direction.Furthermore, in other modified examples thereof, it is also possible to employ modified examples similar to those of the eighth exemplary embodiment of the present invention described above. Furthermore, although the stator 10140 is applied as an example to a 10-pole 12-slot brushless motor, application may be made to a 14-pole 12-slot brushless motor.Generally, copper is used as the wire material for the coil wires, but recently, aluminum coil wire has been more and more considered to reduce cost. However, aluminum coil wire has lower strength against tensile stresses as compared to copper coil wire, and there is a concern that the coil wire may break or may have damage to insulation layers of the coil wire using conventional complicated winding methods used in high-speed winding machines. However, in each of the above exemplary embodiments, even for such a relatively soft material as aluminum coil wire, the load on the coil wire is small, and it is possible to wind the coil wire at high speed.An explanation has been given above regarding exemplary embodiments of the present invention, however, the present invention is not limited by the above, and various modifications are obviously possible in addition to those described above within a scope not deviating from the spirit of the present invention.

Claims

A stator (110) comprising: a plurality of core configuration sections (14) each having a plurality of yoke configuration sections (22) configuring an annular yoke and segmented in a circumferential direction of the yoke, and a plurality of tooth sections (24) protruding from the respective yoke configuration sections (22) along a radial direction of the yoke, wherein the plurality of yoke configuration sections (22) and the plurality of tooth sections (24) are integrated with each other; a plurality of coil wires (16) wound on the respective tooth sections (24) to configure a plurality of winding sections (26); and a plurality of insulators (18) each including a plurality of insulator portions (32) integrated with each of the respective core configuration portions (14) and insulating between the tooth portions (24) and the winding portions (26), and a plurality of first connection portions (34) connecting the plurality of insulator portions (32) to each other, wherein: the stator (110) further includes a terminal (112) provided on each of the plurality of insulators (18) and connecting to a terminal portion (30) of each of the plurality of coil wires (16); wherein each of the plurality of coil wires (16) includes a crossing wire (28) connecting the plurality of winding portions (26) to each other; and the terminal (112) is provided on the opposite side of the yoke axial direction to the crossing wires (28), wherein the plurality of first connecting portions (34) are arranged with a gap therebetween in an axial direction of the yoke (40).The stator (110) of claim 1, wherein the plurality of coil wires (16) configure a plurality of phases (U, V, W).The stator (110) according to claim 1 or 2, wherein a housing portion (38, 66) is formed at at least one first connection portion (34) of the plurality of first connection portions for accommodating a member.The stator (110) according to any one of claims 1 to 3, wherein each of the first connection portions (34) includes a holding portion (36, 64) that holds the plurality of crossing wires configured on the first connection portion (34).The stator (110) according to any one of claims 1 to 4, wherein the plurality of first connection portions (34) are provided with a gap from each other in a radial direction of the yoke; and at least one of the plurality of first connection portions (34) includes a holding portion (36) that is provided between the plurality of first connection portions in the radial direction of the yoke and that holds the plurality of first connection portions in a state separated from each other in the radial direction of the yoke.The stator (310) according to any one of claims 1 to 4, wherein the plurality of first connection portions (336) are provided with a gap therebetween in an axial direction of the yoke; at least one of the plurality of first (336) connection portions includes a spacer (368) which is provided between the plurality of first connection portions (336) in the axial direction of the yoke and which maintains the plurality of first connection portions (336) in a state separated from each other in the axial direction of the yoke.The stator (110) according to any one of claims 1 to 6, wherein the plurality of first connection portions (34) are provided coaxially with the yoke (40, 326).The stator (110) according to claim 3, wherein the member is a crossing wire (28) among the plurality of crossing wires, the crossing wire (28) is disposed at the other connection portion of the connection portion including the housing portion.The stator (110) according to claim 4, wherein the holding portion (36) is formed in a protrusion shape.The stator (110, 310) according to claim 5 or 6, wherein the holding portion (36, 364) is formed in a protrusion shape.The stator (110, 310) according to any one of claims 1 to 10, wherein the plurality of the first connecting portions (34, 336) are positioned more inward toward the yoke radial direction than the core forming portion (14, 314).The stator (310) according to any one of claims 1 to 11, wherein the insulator portions (334) of at least one of the plurality of insulators (318) include insulator main body portions (360) integrated with the respective core configuration portions (314) and insulating between the tooth portions (322) and the winding portions (328), and extending portions (362) positioned more inward toward the yoke radial direction than the core configuration portions and extending from the insulator main body portions in a direction of one of the yoke axial direction, the yoke radial direction, or the yoke circumferential direction, or a direction that is a combination thereof; and the plurality of first connection portions (336) connect the extending portions of the plurality of insulator portions to each other.The stator (310) of claim 12, wherein the insulator portion (334) comprises a first insulator portion (340) and a second insulator portion (350), wherein the first insulator portion and the second insulator portion each comprise a tooth portion insulator portion (342, 352) and a yoke configuration portion insulator portion (344, 354) covering the tooth portion (322) and the yoke configuration portion (314), respectively.The stator (110) according to claim 1, wherein the first connection portion (34) is positioned at the inner radial direction of the yoke; and a protrusion portion (114) is formed at an end portion of at least one insulator portion (32) of the plurality of insulator portions on an opposite side to a yoke side, the protrusion portion (114) protruding from the yoke side with respect to the first connection portion (34); and the terminal (112) is provided on the protrusion portion (114).The stator (110) according to claim 14, wherein an insertion groove (116) is formed on the protrusion portion (114) so as to open toward the yoke axial direction; and the terminal (112) is inserted into the insertion groove (116).The stator (110) according to claim 14 or 15, wherein the first connection portion (34) is provided offset in the yoke axial direction with respect to the plurality of insulator portions (32); and the terminal (112) is in contact with a yoke side surface of the first connection portion (34).The stator (110) according to claim 1, wherein the crossing wire (28) is offset in an axial direction of the yoke with respect to the insulator portion (32).The stator (110) according to claim 14, further comprising a guide portion (118) which is formed along the axial direction of the yoke to each of the plurality of insulators (18) and which guides the terminal portion (30) of each of the plurality of coil wires (16).The stator (110) according to claim 18, wherein the guide portion (118) is provided on a side surface of the protrusion portion (114).The stator (310) according to any one of claims 1 to 19, further comprising a second connection portion (128) which is separated from the plurality of first connection portions (34) in an axial direction of the stator core, which is formed on at least one insulator of the plurality of insulators (18), and which connects the plurality of insulator portions (32) of the at least one insulator (18).The stator (110) according to claim 20, wherein the plurality of first connection portions (34) are provided on a first side in the axial direction of the stator core; the second connection portion (128) is formed on the insulator (18) positioned farthest to a second side in the axial direction of the stator core from the plurality of insulators (18) when the plurality of insulators (18) are arranged in a pre-assembled state along the axial direction of the stator core.The stator (110) according to claim 20, wherein the plurality of first connection portions (34) are arranged coaxially with each other and have different outer diameters with each other; and the second connection portion (128) is formed on the insulator with the first connection portion (34) of the smallest outer diameter among the plurality of insulators (18).The stator (110) of any of claims 20 to 22, wherein the second connecting portion (128) connects a plurality of extending portions (114) of one of the insulators (18) to one another.The stator (410) according to any one of claims 20 to 23, wherein the plurality of insulators (418) has a locking structure for positioning with each other, the locking structure comprising: a terminal portion (472) formed at the second connection portion (438); and a mating terminal portion (474) which mates with the terminal portion (472) and which is formed at an insulator portion (434) positioned between a pair of insulator portions connected by the second connection portion (438) of the plurality of insulator portions (418).The stator (410) according to claim 24, wherein the insulator portion (418) includes a first insulator portion (440) and a second insulator portion (450) segmented in the axial direction of the stator core; the first connection portion (436) connects the plurality of first insulator portions (440) of each of the insulators (418) to each other; and the second connection portion (438) connects the plurality of first insulator portions (440) in one of the insulators to each other.The stator (410) according to claim 24, wherein the insulator portion (418) includes a first insulator portion (440) and a second insulator portion (450) segmented in the axial direction of the stator core; the first connection portion (436) connects together the plurality of first insulator portions (440) of each of the insulators (418); and the second connection portion (438) connects together a plurality of the second insulator portions (450) in one of the insulators.The stator (410) according to any one of claims 1 to 19, wherein the insulators (418) have a locking structure (570) for positioning each other; the core forming member (414) includes a tooth portion (422) extending along a radial direction of the stator core and a yoke configuration portion (412) formed to a leading end portion of the tooth portion; the plurality of insulator portions (434) each include a yoke configuration portion insulator portion (554) covering the yoke configuration portion (412); and the locking structure (570) includes: a terminal portion (572) formed at a first adjacent one of the yoke configuration portion insulator portions (554) and a mating terminal portion (574) that mates with the terminal portion (572) and that is formed at a second one of the adjacent yoke configuration portion insulator portions (554).The stator (410) according to any one of claims 1 to 19, further comprising a locking structure (670) that fixes the plurality of first connection portions (636) to each other.The stator (710) according to any one of claims 1 to 28, wherein a plurality of independently formed groups of stator configuration sections (712) is configured by mounting the plurality of core configuration sections (714) to the respective plurality of insulators (732); in each plurality of the groups of stator configuration sections (712), the plurality of core configuration sections (714) is provided so as to form a gap corresponding to at least one core configuration section between adjacent core configuration sections (714); the plurality of groups of stator configuration sections (712) is provided so that, in a mutually mounted state, a core configuration section (714) of another group is provided in the gap; and each of the plurality of coil wires (716) is continuously formed from one end to the other end and includes a crossing wire (728) which together connects the plurality of winding portions (726).The stator (710) of claim 29, wherein of the crossing wires (728), at least one of the crossing wires (728) connected to a winding start end portion of the winding portion (726) and one of the crossing wires (728) connected to a winding end portion of the winding portion (726) cross over a connection environment between the first connection portion (734) and the insulator portion (732).The stator (710) according to claim 30, wherein each of the insulator portions (732) includes an insulator main body portion (733) integrated with the core configuration portion (714) and insulating between the tooth portion (724) and the winding portion (726), and an extending portion (739) that together connects the insulator main body portion (733) and the first connection portion (734); and a radial direction extending portion (737) is formed at the extending portion (739) so as to extend from the first connection portion (734) in a radial direction of the stator configuration portion (714); and a crossing portion (729) between the crossing wire (728) connected to the winding start end portion of the winding portion (726) and the crossing wire (728) connected to the winding end portion of the winding portion (726) is provided at a position overlapping with the extending portion (737) in the radial direction when viewed along the axial direction of the stator configuration portion (714).The stator (810) according to claim 30, wherein each of the insulator portions (832) comprises an insulator main body portion (833) which is integrated with the core configuration portion (814) and which insulates between the tooth portion (824) and the winding portion (826), and an extending portion which together connects the insulator main body portion (833) and the first connection portion (834); and an extending portion (835) in an axial direction to the extending portion is formed so as to extend from the first connection portion (834) in an axial direction of the stator configuration portion (814); and a crossing portion between the crossing wire (828) connected to the winding start end portion of the winding portion (826) and the crossing wire (828) connected to the winding end portion of the winding portion (826) is provided at a position overlapping with the extending portion (835) in the axial direction when viewed along the radial direction of the stator configuration portion.The stator (110, 310, 410, 710, 810) of any one of claims 1 to 32, wherein the tooth portion (24, 324, 424. 724, 824) protrudes from the yoke configuration portion ( 22, 322, 422, 722, 822) toward the inside of the radial direction of the yoke.The stator (810) according to any one of claims 29 to 33, wherein the insulator portion (818) comprises an extension side wall portion extending along an axial direction of the stator configuration portion (812); and in each of the plurality of groups of the stator configuration portion, with respect to an imaginary line (x) extending in a tangential direction to the stator configuration portion (812) so as to pass through the extension side wall portion, an end (822A) in the circumferential direction of the yoke configuration portion (822) is positioned from a first core configuration portion (814) so as to be positioned on the opposite side to a second core configuration portion (814) provided adjacent to the first core configuration portion (814), the imaginary line (x) being positioned between the first and second core configuration portions (814).The stator (910) according to any one of claims 1 to 32, wherein the tooth portions (924) project from the yoke configuration portion (922) toward the outer side of the yoke radial direction.The stator (910) according to claim 35, wherein the adjacent yoke configuration sections are fitted to each other (922) with fitting sections (944) formed in recess and protrusion.The stator (810) according to any one of claims 33 to 36, wherein the winding portions (826) are compression-deformed by press forming.The stator (10140) according to any one of claims 33 to 37, wherein each of the plurality of groups of stator configuration sections is configured by a combination of mutually different phases (U, V, W), respectively; in each of the stator configuration sections, the plurality of tooth sections (1012) are provided at equal intervals to each other; and of the plurality of winding sections (1026), a pair of winding sections (1026) that are opposed to each other across a stator configuration section axis is formed by the coil wire and is formed by winding in reverse directions to each other.The stator (10140) according to claim 38, wherein a winding portion (1026) wound in a releasing direction on the tooth portion (1024) of the pair of winding portions (1026) and a crossing wire (1028) between the pair of winding portions are connected to each other by a guide portion led out from the tooth portion; a protrusion portion (1048) to which the guide portion is anchored is formed on the insulator (1018); and the winding portion (1048) wound in a releasing direction on the tooth portion (1024) of the pair of winding portions (1026) is prevented from loosening by the guide portion anchored on the protrusion portion (1048).Brushless motor (60, 760. 1060), comprising: the stator (110, 310, 410, 710, 810, 910, 10140) according to any one of claims 1 to 39 and a rotor (220) rotating in a rotating magnetic field generated by the stator.The method for manufacturing a stator (110, 310, 410, 710, 810, 910, 10140) according to any one of claims 1 to 39, wherein the method for manufacturing the stator comprises: a sub-assembly forming process in which the core configuration sections (14, 314, 414, 714, 814, 914, 1014) are integrated with the insulator sections (32U, 334U, 434U, 732U, 832U) of each of the insulators (32, 334, 434, 732, 832) to form a sub-assembly for each of a plurality of groups; a stator configuration section forming process (12) in which the stator configuration sections for each of the plurality of groups are formed by winding the coil wire (16) on each of the tooth sections (24, 324, 424. 724, 824, 924, 1024) of each of the subassemblies can be formed from a radial direction outside the stator configuration section (12, 312, 412, 712, 812, 1012) using a coil wire winding machine (100); and a process of forming the stator (110, 310, 410, 710, 810, 910, 10140) constituting a stator together by mounting the plurality of stator configuration sections (12, 312, 412, 712, 812, 1012).The method for manufacturing a stator according to claim 41, further comprising, between the stator configuration section forming process and the stator configuration process, a compression process that presses and deforms the winding sections (26) in each of the plurality of stator configuration section groups under compression.The method for manufacturing a stator according to claim 42, wherein in the compressing process, the winding portions (26) are pressed from a direction orthogonal to an axial direction of the tooth portion.The method for manufacturing a stator according to claim 42 or 43, wherein in the compressing process, the winding portions (26) are pressed from both sides from a direction orthogonal to the axial direction of the tooth portion.The method for manufacturing a stator according to claim 42, wherein in the compressing process, the winding portions (26) are pressed such that the pressing direction on the winding portions (26) is a tangential direction to the respective stator configuration portion (12).The method for manufacturing a stator (310) according to claim 12, comprising: an installation and cutting operation that uses an insulator (18) in which a plurality of first insulator portions (340), second insulator portions (350), and bridging portions (370) have been integrated together, and each of the bridging portions (370) together connects the first insulator portion (340) and the second insulator portion (350), in which a core configuration portion (314) for forming a stator core (312) is installed to a portion of the first insulator portion and the second insulator portion, and the bridging portions are cut off; a position-aligning operation that performs position-aligning between the other portion of the first insulator portion (340) and the second insulator portion (350) and the core configuration portion (314) by moving at least one portion of the first insulator portion and the second insulator portion with respect to the other portion; an installation operation that installs the other portion of the first insulator portion (340) and the second insulator portion (350) to the core configuration portion (314); and a coil wire winding operation that forms a coil wire winding portion (328) having a coil wire (316) at the core configuration portion (314) by winding the coil wire onto the core configuration portion (314) with the first insulator portion (340) and the second insulator portion (350) interposed therebetween.The method for manufacturing a stator according to claim 46, wherein in the installation and cutting operation, the bridging portion (370) is cut after the core forming portion (314) is installed at the one of the first insulator portion (340) and the second insulator portion (350).The method for manufacturing a stator according to claim 46 or 47, wherein as the insulator (318), the first insulator portion (340) and the second insulator portion (350) each include a tooth portion insulator portion (342) and a yoke configuration portion insulator portion (344) each covering a tooth portion (322) and a yoke configuration portion (324) formed at the core configuration portion (314), and the bridging portion (370) together connects the yoke configuration portion insulator portions (324) of the first insulator portion (340) and the second insulator portion (350).

Images