Motor

Abstract

To provide a motor in which mechanical strength of coupling of a conductor wire can be improved.SOLUTION: A motor 1 includes a conductor wire 28a forming a coil 28, a first conductive member 46 having two branched portions 46b, 46b, and a second conductive member 50. A part of the conductor wire 28a is disposed between the two portions 46b, 46b, and the second conductive member 50 crimps the two portions 46b, 46b and the part of the conductor wire 28a.SELECTED DRAWING: Figure 5

Description

[Technical Field]

[0001] The present invention relates to a motor. [Background technology]

[0002] For example, Patent Document 1 discloses a technique for facilitating coupling between a lead wire of a coil and a connection terminal in a motor. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2009-38938 Summary of the Invention [Problem to be solved by the invention]

[0004] To further improve the electrical connection between the lead wires and the connection terminals, it is necessary to improve the strength of the mechanical bond between the lead wires and the connection terminals.

[0005] SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide a motor that can improve the mechanical strength of the connection of the conductor wires. [Means for solving the problem]

[0006] A motor according to one embodiment of the present invention comprises a conductor forming a coil, a first conductive member having two branched portions, and a second conductive member, wherein a portion of the conductor is sandwiched between the two portions, and the second conductive member crimps the two portions and a portion of the conductor. [Brief explanation of the drawings]

[0007] [Figure 1] 1 is a perspective view showing a schematic structure of a motor 1 according to an embodiment of the present invention. [Figure 2] FIG. 2 is a cross-sectional view taken along line 2-2 in FIG. [Figure 3] FIG. 3 is a cross-sectional view taken along line 3-3 in FIG. 2. [Figure 4] FIG. 2 is a perspective view schematically illustrating the structure of a stator assembly 25 according to one specific example. [Figure 5] 10 is a perspective view seen from above showing an example of an electrical connection between a busbar unit 40 and a coil 28. FIG. [Figure 6] 10 is a perspective view seen from below showing an example of an electrical connection between a busbar unit 40 and a coil 28. FIG. [Figure 7] FIG. 7 is a cross-sectional view taken along line 7-7 in FIG. 5. [Figure 8] 10 is a perspective view illustrating a state in which a conductive member 50 is attached to an outer terminal 46 and a conductor 28a. FIG. [Figure 9] 10 is a perspective view seen from above showing another example of an electrical connection between an outer terminal 46 and a coil 28. FIG. [Figure 10] 10 is a perspective view seen from below showing another example of an electrical connection between an outer terminal 46 and a coil 28. FIG. [Figure 11] 10 is a perspective view illustrating a state in which a conductive member 60 is attached to an outer terminal 46 and a conductor 28a. FIG. [Figure 12] 10 is a perspective view seen from above showing yet another example of an electrical connection between an outer terminal 46 and a coil 28. FIG. [Figure 13] 10 is a perspective view from below showing yet another example of an electrical connection between an outer terminal 46 and a coil 28. FIG. [Figure 14] 10 is a perspective view illustrating a state in which a conductive member 70 is attached to an outer terminal 46 and a conductor 28a. FIG. DETAILED DESCRIPTION OF THE INVENTION

[0008] An embodiment of the present invention will now be described with reference to the accompanying drawings. FIG. 1 is a perspective view that schematically shows the structure of a motor 1 according to an embodiment of the present invention. FIG. 2 is a vertical sectional view that schematically shows the structure of a motor 1 according to an embodiment of the present invention. FIG. 3 is a horizontal sectional view that schematically shows the structure of a motor 1 according to an embodiment of the present invention. Note that FIG. 2 corresponds to a sectional view taken along line 2-2 in FIG. 1, along an imaginary plane that includes an axis x that constitutes the rotational axis of the motor 1. Also, FIG. 3 corresponds to a sectional view taken along line 3-3 in FIG. 2, along an imaginary plane that is perpendicular to the axis x.

[0009] In the following description of the embodiment of the motor 1, one side in the direction along the axis x (hereinafter referred to as the "axial direction") is defined as the upper side, and the other side opposite the one side as the lower side. These upper and lower sides defined in the axial direction do not necessarily coincide with the up and down relationship in the direction of gravity. Furthermore, the radial direction of the motor 1 is defined as a direction perpendicular to the axis x. In this radial direction, the side away from the axis x is defined as the outer side (outer circumferential side) in the radial direction, while the side approaching the axis x is defined as the inner side (inner circumferential side) in the radial direction. Furthermore, the circumferential direction of the motor 1 is defined around the axis x.

[0010] 1 to 3, the motor 1 includes, for example, a cylindrical shaft 10 whose central axis is axis x. The shaft 10 is rotatably supported by two bearings 12 and 13 fixed to a housing 11. The bearings 12 and 13 are attached between the shaft 10 and the housing 11 by, for example, press fitting. The bearings 12 and 13 are, for example, ball bearings. In this example, the shaft 10 protrudes downward from the lower end of the housing 11 farther than it protrudes upward from the upper end of the housing 11.

[0011] The housing 11 has, for example, a cylindrical main body (hereinafter referred to as the "housing main body") 14 and, for example, a disk-shaped cover 15. The lower end of the housing main body 14 is open, while the upper end of the housing main body 14 is closed by the housing main body 14 having an upper part. The lower end of the housing main body 14 is covered and closed by the cover 15. The shaft 10 protrudes outside the housing 11 from an opening 16 formed at the upper end of the housing main body 14 and an opening 17 formed in the cover 15. A flange 14a protruding in a predetermined shape in the radial direction is formed at the lower end of the housing main body 14. This flange 14a is used, for example, to attach the motor 1 to a predetermined application.

[0012] A cylindrical rotor core 18, for example, is fixed to the shaft 10 between the bearings 12 and 13 in the axial direction. The rotor core 18 is formed from a laminate of multiple magnetic materials stacked in the axial direction. As is clear from FIG. 3 , the rotor core 18 has, for example, a cylindrical inner peripheral portion 19 with its central axis coincident with the axis x, a cylindrical outer peripheral portion 20 with its central axis also coincident with the axis x, and multiple connecting portions 21 connecting the inner peripheral portion 19 and the outer peripheral portion 20 to each other. The rotor core 18 is fixed by inserting the shaft 10 into a hole formed in the inner peripheral portion 19 along the axis x. Each connecting portion 21 is formed, for example, in the shape of a long, flat plate extending in the radial direction.

[0013] A plurality of magnets 22 are embedded in the outer peripheral portion 20 of the rotor core 18 in close proximity to its outer peripheral surface. The magnets 22 are, for example, permanent magnets. Each magnet 22 is fixed, for example, in a through-hole 23 in the outer peripheral portion 20 that extends axially in close proximity to the outer peripheral surface of the rotor core 18. The magnets 22 are arranged in the circumferential direction, with their magnetic poles oriented alternately as north and south poles in the circumferential direction. This motor 1 is a so-called interior permanent magnet (IPM) motor. The rotor core 18 and the magnets 22 form a rotor 24 of the motor 1. In other words, the motor 1 is an inner rotor type motor.

[0014] A stator assembly 25 is accommodated within the housing 11. The stator assembly 25 has a stator core 26, a plurality of insulators 27, and a plurality of coils 28. The stator core 26 is fixed to the inner circumferential surface of the housing body 14. A plurality of coils 28 arranged in the circumferential direction are wound around the stator core 26. The stator core 26 is formed from a laminated body of a magnetic material such as silicon steel plate. The coils 28 are formed from, for example, conductive wires 28a having a predetermined diameter. The insulators 27 are formed from an insulating material such as a resin material. The insulators 27, which are arranged between the stator core 26 and the coils 28, insulate the stator core 26 from the coils 28.

[0015] As shown in FIG. 3 , the stator core 26 has a cylindrical tubular portion 29 and a plurality of teeth 30. The outer circumferential surface of the tubular portion 29 is fixed to the inner circumferential surface of the housing main body 14. Each tooth 30 has a spoke 31 and a magnetic pole portion 32. The spokes 31 extend radially from their outer circumferential ends to their inner circumferential ends. The magnetic pole portions 32 are continuous with the inner circumferential ends of the spokes 31. The magnetic pole portions 32 protrude circumferentially in opposite directions from the spokes 31. The inner circumferential surfaces of the magnetic pole portions 32 of the teeth 30 face the outer circumferential surface of the outer circumferential portion 20 of the rotor core 18 with a predetermined magnetic gap between them. A conductor 28a is wound around each spoke 31 via an insulator 27 to form a coil 28. The stator core 26, the insulator 27, and the coil 28 constitute a stator 33 of the motor 1.

[0016] FIG. 4 is a perspective view schematically illustrating the structure of a stator assembly 25 according to one specific example. Referring to FIGS. 2 and 4 together, the stator assembly 25 includes a busbar unit 40. The busbar unit 40 is disposed between the coil 28 and the upper end of the housing main body 14. The busbar unit 40 includes an annular housing 41 and a busbar group 42 serving as a conductive member housed within the housing 41. The busbar unit 40 is configured to supply current to the coil 28 from an external power source (not shown) via the busbar group 42. Note that the housing 41 of the busbar unit 40 is not shown in FIG. 4. That is, only the busbar group 42 of the busbar unit 40 is visible in FIG.

[0017] The busbar group 42 includes a plurality of first busbars 43 and a plurality of second busbars 44. In this example, three first busbars 43 are stacked in the axial direction, while six second busbars 44 are arranged circumferentially below the first busbars 43 in the axial direction. Each first busbar 43 includes an annular portion (hereinafter referred to as an "annular portion") 45, a plurality of terminals (first conductive members, hereinafter referred to as "outer terminals") 46 extending radially outward from the annular portion 45, and terminals (hereinafter referred to as "external terminals") 47 extending upward from the annular portion 45. Meanwhile, each second busbar 44 includes a main body 48 extending in an arc shape in the circumferential direction and a plurality of terminals (hereinafter referred to as "inner terminals") 49 extending radially inward from the main body 48. The outer terminals 46 protrude radially outward from the housing 41, while the inner terminals 49 protrude radially inward from the housing 41.

[0018] The plurality of outer terminals 46 and the plurality of inner terminals 49 are electrically connected to the conductors 28a of the coils 28 based on a predetermined wiring circuit. One end of the conductors 28a forming each coil 28 is electrically connected to the first bus bar 43, while the other end of the conductors 28a is electrically connected to the second bus bar 44. The external terminals 47 are electrically connected to an external device (not shown). The external device may include a power source that supplies current to the motor 1. As shown in FIGS. 1 and 2, the external terminals 47 protrude upward from the housing main body 14 to the outside of the housing 11. In this example, three external terminals 47 are arranged at equal intervals in the circumferential direction. Each external terminal 47 is electrically connected to an external device by wiring (not shown) or the like.

[0019] FIG. 5 is a perspective view from above showing an example of an electrical connection between the outer terminal 46 and the coil 28. FIG. 6 is a perspective view from below showing an example of an electrical connection between the outer terminal 46 and the coil 28. FIG. 7 is a cross-sectional view taken along line 7-7 in FIG. 5. FIGS. 5 to 7 illustrate the electrical connection between the outer terminal 46 and the conductor 28a of the coil 28. The electrical connection between the outer terminal 46 and the conductor 28a of the coil 28 will be described below, but the electrical connection between the inner terminal 49 and the conductor 28a of the coil 28 is configured in a similar manner. The cross section in FIG. 7 is a cross section of one first bus bar 43 taken along an imaginary plane perpendicular to the axis x.

[0020] 5 to 7, each outer terminal 46 has a base portion 46a extending radially outward from the annular portion 45 of the first bus bar 43, and two branched portions (hereinafter referred to as "tip portions") 46b, 46b extending radially outward from the base portion 46a. In this example, the base portion 46a extends radially with a uniform width from its inner circumferential base end connected to the annular portion 45 to its outer circumferential end connected to the two tip portions 46b, 46b. A recessed groove (recessed groove) 46c extending radially inward is formed between the branched tip portions 46b, 46b. The conductive wire 28a of the coil 28 is received in this recessed groove 46c and sandwiched between the two tip portions 46b, 46b. The outer circumferential ends of the two tip portions 46b, 46b are crimped so that they approach each other. In this way, the two tip portions 46b, 46b of the outer terminal 46 are crimped to the conductor 28a.

[0021] A conductive member (second conductive member) 50 is attached to the two tip portions 46b, 46b of the outer terminal 46 and the conductive wire 28a. Specifically, the conductive member 50 is crimped to the two tip portions 46b, 46b and a portion of the conductive wire 28a. The conductive member 50 has a main body 51 and two portions (hereinafter referred to as "extension portions") 52, 52 extending from both ends of the main body 51 in the circumferential direction. The main body 51 and the extension portions 52 are integrally formed from a conductive metal material such as copper or a copper alloy. In this example, the main body 51 is disposed on the outer terminal 46 and is a flat plate extending along an imaginary plane perpendicular to the axis x. The main body 51 has a hole 51a formed therein that penetrates the main body 51 parallel to the axis x. The conductive wire 28a passes through this hole 51a. As shown in FIG. 7, the radial length of the main body 51 is set to a length that surrounds, for example, at least a part of the base portion 46a of the outer terminal 46 and the two tip portions 46b, 46b.

[0022] Each extension portion 52 extends downward from the main body 51 in the axial direction of the conductor 28a and is then bent to extend toward the conductor 28a. Each extension portion 52 surrounds the two tip portions 46b, 46b from below. Thus, each extension portion 52 is formed to surround the two tip portions 46b, 46b of the outer terminal 46. In other words, the outer terminal 46 extends from one tip portion 46b to the other tip portion 46b by one extension portion 52, the main body 51, and the other extension portion 52. As shown in FIG. 6 , in this example, the tip 52a of each extension portion 52 is crimped to the outer peripheral surface of the conductor 28a. Thus, the conductive member 50 surrounds the outer terminal 46 in the circumferential and axial directions by the main body 51 and the extension portion 52. Thus, the conductive member 50 reinforces the mechanical connection between the outer terminal 46 and the conductor 28a of the coil 28.

[0023] FIG. 8 is a perspective view illustrating a scene in which the conductive member 50 is attached to the outer terminal 46 and the conductive wire 28a. To attach the conductive member 50, an intermediate product 50A of the conductive member 50 is prepared. The intermediate product 50A has a main body 51A and two extending portions 52A, 52A. The main body 51A corresponds to the main body 51, and the extending portion 52A corresponds to the extending portion 52. The main body 51A has a hole 51a penetrating the main body 51A. The extending portion 52A is formed from a flat plate. The two extending portions 52A, 52A extend so as to become more spaced apart as they move away from the main body 51A. To manufacture the intermediate product 50A, for example, a punching process is performed to punch out a rectangular metal plate from a metal sheet. Then, a bending process is performed to form the two extending portions 52A, 52A from the single metal sheet formed by the punching process.

[0024] Prior to the installation of the intermediate product 50A, the outer terminal 46 is crimped using a crimping jig (not shown). Specifically, the two tip ends 46b, 46b of the outer terminal 46 are crimped to the conductor 28a so that they approach each other in the circumferential direction. The conductor 28a is then inserted into the hole 51a of the body 51A of the intermediate product 50A from the upper end of the hole 51a, thereby positioning the intermediate product 50A so that it covers the two tip ends 46b, 46b of the outer terminal 46. In this state, the intermediate product 50A is crimped using a crimping jig (not shown). Specifically, the two extensions 52, 52 tighten so as to compress the conductor 28a and the two tip ends 46b, 46b in the circumferential direction. The tip ends 52a, 52a of the extensions 52, 52 are crimped to the conductor 28a. The conductive member 50 thus crimps a portion of the conductor 28a, the body 46a and the tips 46b, 46b.

[0025] In the motor 1 described above, a conductive member 50 is used to reinforce the mechanical connection between the conductive wire 28a forming the coil 28 and the outer terminal 46 of the first bus bar 43. This conductive member 50 is crimped to the main body 46a, the two tip ends 46b, 46b of the outer terminal 46, and a portion of the conductive wire 28a. As a result, the conductive member 50 functions to improve the mechanical strength of the connection between the conductive wire 28a and the outer terminal 46. As a result, the electrical connection between the conductive wire 28a and the outer terminal 46 can also be improved. Note that to further improve the electrical connection, the conductive member 50 may be soldered or welded to the conductive wire 28a and / or the tip end 46b of the outer terminal 46.

[0026] FIG. 9 is a perspective view from above showing another example of the electrical connection between the outer terminal 46 and the coil 28. FIG. 10 is a perspective view from below showing another example of the electrical connection between the outer terminal 46 and the coil 28. Referring to FIGS. 9 and 10 together, in this example, a conductive member 60 is used instead of the conductive member 50 described above to reinforce the mechanical connection between the outer terminal 46 and the conductor 28a. Other components similar to those in the above embodiment are denoted by the same reference numerals, and redundant description will be omitted here. The conductive member 60 has a main body 61 and two portions (hereinafter referred to as "extension portions") 62, 62 extending from both ends of the main body 61 in the circumferential direction. The main body 61 and the extension portions 62 are integrally formed from a conductive metal material such as copper or a copper alloy.

[0027] In this example, the main body 61 is disposed on the outer terminal 46 and is a flat plate extending along an imaginary plane perpendicular to the axis x. The main body 61 has a hole 61a formed therethrough parallel to the axis x. The conductor 28a passes through this hole 61a. The main body 61 is configured similarly to the main body 51 described above. In this example, one extension portion 62 extends downward from the main body 61 in the axial direction in which the conductor 28a extends, and is then bent to extend toward the other extension portion 62. The one extension portion 62 has two branched portions 62a, 62a forming a groove (recessed groove) 62b. The conductor 28a is received in this recessed groove 62b. Meanwhile, the other extension portion 62 extends downward in the axial direction. In this way, on the other extension portion 62 side, the respective tips 62c, 62c of the two portions 62a, 62a of one extension portion 62 and the tip 62d of the other extension portion 62 are crimped together.

[0028] FIG. 11 is a perspective view illustrating a scene in which the conductive member 60 is attached to the outer terminal 46 and the conductive wire 28a. To attach the conductive member 60, an intermediate product 60A of the conductive member 60 is prepared. The intermediate product 60A has a main body 61A and two extending portions 62A, 62A. The main body 61A corresponds to the main body 61, one extending portion 62A corresponds to one extending portion 62, and the other extending portion 62A corresponds to the other extending portion 62. The main body 61A has a hole 61a penetrating the main body 51A. One extending portion 62A is bent from the main body 61A in the same manner as the one extending portion 62. The other extending portion 62A extends flush with the main body 61A. To manufacture the intermediate product 60A, for example, a punching process is performed to punch a rectangular metal plate out of a metal plate. Thereafter, the single metal plate formed by this punching process is subjected to a bending process to form one of the extending portions 62A.

[0029] Prior to attachment of the intermediate product 60A, the two tip ends 46b, 46b of the outer terminal 46 are crimped to the conductor 28a so that they approach each other in the circumferential direction. Then, the conductor 28a is inserted from its upper end into the hole 61a in the body 61A of the intermediate product 60A, and the conductor 28a is accommodated in the recess 62b of one of the extension portions 62A, thereby positioning the intermediate product 60A so that it covers the two tip ends 46b, 46b of the outer terminal 46. In this state, the intermediate product 60A is crimped using a crimping jig (not shown). Specifically, the other extension portion 62A is bent along one circumferential end of the outer terminal 46, and then the tip 62d of the other extension portion 62A is crimped to the tip ends 62c, 62c of the extension portion 62A. In this manner, the conductive member 60 crimps a portion of the conductor 28a, the main body 46a, and the tip ends 46b, 46b. Note that the crimped portions of the tip ends 62c, 62d of the two extensions 62A, 62A may be welded to each other. Alternatively, the conductive member 60 may be soldered to the conductor 28a and / or the tip end 46b of the outer terminal 46.

[0030] FIG. 12 is a perspective view from above showing yet another example of the electrical connection between the outer terminal 46 and the coil 28. FIG. 13 is a perspective view from below showing yet another example of the electrical connection between the outer terminal 46 and the coil 28. Referring to FIGS. 12 and 13 together, in this example, a conductive member 70 is used instead of the conductive members 50 and 60 described above to reinforce the mechanical connection between the outer terminal 46 and the conductor 28a. Other components similar to those in the above-described embodiment are denoted by the same reference numerals, and redundant description will be omitted here. The conductive member 70 has a main body 71 and two portions (hereinafter referred to as "extension portions") 72, 72 extending circumferentially from both axial ends of the main body 71. The main body 71 and the extension portion 72 are integrally formed from a conductive metal material such as copper or a copper alloy.

[0031] In this example, the main body 71 is disposed adjacent to the outer terminal 46 in the circumferential direction and is a flat plate extending along an imaginary plane parallel to the axis x. That is, the main body 71 extends in the axial direction, in which the conductor 28a extends. The extension portions 72 extend circumferentially from both axial ends of the main body 71 and are then bent toward each other. The extension portions 72 surround the two tip portions 46b from above, below, and in the circumferential direction. The upper extension portion 72 has a hole 72a penetrating the extension portion 72 parallel to the axis x. The conductor 28a passes through this hole 72a. Meanwhile, the lower extension portion 72 has two branched portions 72b forming a groove (recessed groove) 72c. The conductor 28a is received in this recessed groove 72c.

[0032] In this manner, the main body 72 and each extension 72 are formed to surround the two tip ends 46b. In other words, the outer terminal 46 extends from one tip end 46b to the other tip end 46b by one extension 72, the main body 71, and the other extension 72. In this example, the tips 72d of the extensions 72 are crimped to each other. In this manner, the conductive member 70 sandwiches the outer terminal 46 in the circumferential and axial directions between the main body 71 and the extensions 72. In this example, the extensions 72 may have welds 72e on their outer peripheral side surfaces adjacent to the tips 72d. The welds 72e are formed by welding the extensions 72 to each other.

[0033] FIG. 14 is a perspective view illustrating a scene in which the conductive member 70 is attached to the outer terminal 46 and the conductive wire 28a. To attach the conductive member 70, an intermediate product 70A of the conductive member 70 is prepared. The intermediate product 70A has a main body 71A and two extending portions 72A, 72A. The main body 71A corresponds to the main body 71, and the extending portions 72A, 72A correspond to the extending portions 72, 72. The extending portions 72A, 72A are formed from flat plates. The extending portions 72A are formed so as to become more spaced apart as they move away from the main body 71A. The upper extending portion 72A has a hole 72a penetrating the extending portion 72A. The lower extending portion 72A has a recessed groove 72c. To manufacture the intermediate product 70A, for example, a punching process is performed to punch a rectangular metal plate out of a metal plate. Thereafter, a bending process is carried out to form two extension portions 72A, 72A on the single metal plate formed by this punching process.

[0034] Prior to installation of the intermediate product 70A, the two tip ends 46b, 46b of the outer terminal 46 are crimped to the conductor 28a so that they approach each other in the circumferential direction. The conductor 28a is then inserted from its upper end into the hole 72a of the upper extension portion 72A of the intermediate product 70A, and the conductor 28a is accommodated in the recess 72c of the lower extension portion 72A, thereby positioning the intermediate product 70A so that it covers the two tip ends 46b, 46b of the outer terminal 46. In this state, the intermediate product 70A is crimped using a crimping jig (not shown). Specifically, the tip ends 72d, 72d of the extension portions 72A, 72A are crimped to each other. In this manner, the conductive member 70 crimps a portion of the conductor 28a, the main body 46a, and the tip ends 46b, 46b. The two extensions 72A may then be welded adjacent to the tips 72d, and the conductive member 70 may be soldered to the conductor 28a and / or the tip 46b of the outer terminal 46.

[0035] The above-described embodiments are intended to facilitate understanding of the present invention and are not intended to limit the scope of the present invention. Furthermore, the above-described embodiments do not limit the scope of the present invention, and the present invention may include any and all applications. The components of the above-described embodiments, as well as their arrangement, materials, conditions, shape, size, etc., are not limited to those illustrated and may be modified as appropriate. For example, the present invention includes differences that arise during implementation due to manufacturing tolerances, etc. Furthermore, components illustrated in different embodiments may be partially substituted or combined within the scope of technical inconsistency. Furthermore, the various configurations may be selectively combined as appropriate to achieve at least some of the above-described problems and effects. [Explanation of symbols]

[0036] 1 motor, 10 shaft, 11 housing, 12, 13 bearing, 14 main body (housing main body), 14a flange, 15 cover, 16 opening, 17 opening, 18 rotor core, 19 inner peripheral portion, 20 outer peripheral portion, 21 connection portion, 22 magnet, 23 through hole, 24 rotor, 25 stator assembly, 26 stator core, 27 insulator, 28 coil, 28a conductor, 29 cylindrical portion, 30 teeth, 31 spokes, 32 magnetic pole portion, 33 stator, 40 busbar unit, 41 housing, 42 busbar group, 43 first busbar, 44 second busbar, 45 portion (annular portion), 46 terminal (first conductive member, outer terminal), 46a base portion, 46b portion (tip portion), 46c recessed groove (recessed groove), 47 Terminal (external terminal), 48 main body, 49 terminal (first conductive member, inner terminal), 50 conductive member (second conductive member), 50A intermediate product, 51 main body, 51a hole, 51A main body, 52A extension part, 52 part (extension part), 60 conductive member, 60A intermediate product, 61 main body, 61a hole, 61A Main body, 62 part (extended part), 62a tip, 62b groove (concave groove), 62A extended part, 70 conductive member, 70A intermediate product, 71 main body, 71A main body, 72 part (extended part), 72A extended part, 72a hole, 72b part, 72c groove (concave groove), 72d tip, 72e welded part, x axis line

Claims

1. A conducting wire forming a coil; a first conductive member having two branched portions; a second conductive member; A portion of the conductor is sandwiched between the two portions, The second conductive member is configured to crimp the two portions and a portion of the conductor.

2. the second conductive member includes a hole; The motor according to claim 1 , wherein the conductor passes through the hole.

3. 3. The motor of claim 1, wherein the second conductive member surrounds the two portions.

4. The motor according to claim 1 , wherein the second conductive member extends from one of the two portions toward the other of the two portions.

5. The motor according to claim 4 , wherein the second conductive member extends in the same direction as the conductor wire.

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