WO2017026411A1 - ステータ、およびモータ - Google Patents
ステータ、およびモータ Download PDFInfo
- Publication number
- WO2017026411A1 WO2017026411A1 PCT/JP2016/073185 JP2016073185W WO2017026411A1 WO 2017026411 A1 WO2017026411 A1 WO 2017026411A1 JP 2016073185 W JP2016073185 W JP 2016073185W WO 2017026411 A1 WO2017026411 A1 WO 2017026411A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- circumferential direction
- teeth
- umbrella
- cylindrical
- cylindrical portion
- Prior art date
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/46—Fastening of windings on the stator or rotor structure
- H02K3/48—Fastening of windings on the stator or rotor structure in slots
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/04—Details of the magnetic circuit characterised by the material used for insulating the magnetic circuit or parts thereof
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/14—Stator cores with salient poles
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/16—Stator cores with slots for windings
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
- H02K3/12—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors arranged in slots
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/32—Windings characterised by the shape, form or construction of the insulation
- H02K3/34—Windings characterised by the shape, form or construction of the insulation between conductors or between conductor and core, e.g. slot insulation
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/32—Windings characterised by the shape, form or construction of the insulation
- H02K3/34—Windings characterised by the shape, form or construction of the insulation between conductors or between conductor and core, e.g. slot insulation
- H02K3/345—Windings characterised by the shape, form or construction of the insulation between conductors or between conductor and core, e.g. slot insulation between conductor and core, e.g. slot insulation
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/46—Fastening of windings on the stator or rotor structure
- H02K3/52—Fastening salient pole windings or connections thereto
- H02K3/521—Fastening salient pole windings or connections thereto applicable to stators only
- H02K3/522—Fastening salient pole windings or connections thereto applicable to stators only for generally annular cores with salient poles
Definitions
- the present invention relates to a stator and a motor.
- Patent Document 1 a motor having a coil wound around a tooth via an insulator is known (for example, Patent Document 1).
- a coil is formed by winding a conductive wire around a tooth via an insulator.
- the end of the winding start of the conducting wire is easy to move, and there is a possibility that the first conducting wire wound around the teeth may move.
- the first winding conducting wire can be fixed and the first winding conducting wire can be prevented from moving.
- the first winding conducting wire when starting to wind a conducting wire from a position where the interval between adjacent teeth in the circumferential direction is narrow, such as the front end side of the tooth in the inner rotor, it is difficult to secure a space for winding and winding the conducting wire. Therefore, there is a problem that it is difficult to fix the first conductive wire by overlapping and winding the conductive wire.
- an aspect of the present invention provides a stator having a structure capable of suppressing movement of a conductive wire wound around a tooth via an insulator, and a motor including such a stator. Is one of the purposes.
- a stator includes an annular core back that extends in the circumferential direction around a central axis that extends in the vertical direction, a plurality of teeth that extend radially from the core back, and at least a portion of the teeth.
- An umbrella portion disposed on the end portion and extending on both sides in the circumferential direction; and a wall portion projecting from the outer surface of the cylindrical portion toward the circumferential direction, and at least a part of the front end surface of the wall portion is inclined.
- the insulator approaches the tubular portion toward the umbrella portion in the radial direction, and the insulator is directed toward the core back side from an end portion on one side in the circumferential direction of the umbrella portion. Having at least one protrusion protruding I. *
- a motor according to one aspect of the present invention includes the stator and a rotor that is rotatable relative to the stator.
- the stator and the motor it is possible to suppress the movement of the conductive wire wound around the teeth via the insulator.
- FIG. 1 is a cross-sectional view showing the motor of this embodiment.
- FIG. 2 is a perspective view showing the stator core of the present embodiment.
- FIG. 3 is a perspective view showing a part of the insulator of the present embodiment.
- FIG. 4 is a side view showing a part of the stator of the present embodiment.
- FIG. 5 is a plan view showing a part of the stator of the present embodiment.
- FIG. 6 is a plan view showing a part of the stator of the present embodiment.
- FIG. 1 in the axial direction of the central axis J extending in the vertical direction is simply referred to as “upper side”, and the lower side is simply referred to as “lower side”.
- the vertical direction does not indicate the positional relationship or direction when incorporated in an actual device.
- a direction parallel to the central axis J is referred to as an “axial direction”
- a radial direction around the central axis J is simply referred to as a “radial direction”
- a circumferential direction around the central axis J is simply referred to as a “circumferential direction”.
- extending in the axial direction includes not only strictly extending in the axial direction but also extending in a direction inclined by less than 45 ° with respect to the axial direction.
- “Extending in the radial direction” means not only strictly extending in the radial direction, that is, in a direction perpendicular to the axial direction, but also extending in a direction inclined by less than 45 ° with respect to the radial direction. Including. *
- the motor 10 is, for example, an inner rotor type motor.
- the motor 10 includes a housing 20 that can accommodate various components, a rotor 30, a cylindrical stator 40, a bearing holder 50, a lower bearing 60 that is held by the housing 20, and an upper bearing that is held by the bearing holder 50. 61, a lower bus bar assembly 70, an upper bus bar assembly 80, and terminals 92A and 92B. *
- the rotor 30 includes a shaft 31, a first rotor core 33A, a second rotor core 33B, a third rotor core 33C, a first magnet 34A, a second magnet 34B, and a third magnet disposed along the central axis J. 34C.
- the shaft 31 is rotatably supported around the central axis J by the lower bearing 60 and the upper bearing 61.
- the rotor 30 is rotatable with respect to the stator 40 inside the stator 40.
- the first rotor core 33A, the second rotor core 33B, and the third rotor core 33C are cylindrical.
- the first rotor core 33A, the second rotor core 33B, and the third rotor core 33C are arranged in this order from the lower side to the upper side in the axial direction.
- the inner surface of the first rotor core 33A, the inner surface of the second rotor core 33B, and the inner surface of the third rotor core 33C are, for example, cylindrical with the central axis J as the center.
- the shaft 31 is fitted and fixed to the first rotor core 33A, the second rotor core 33B, and the third rotor core 33C, for example, by press fitting or the like.
- the first rotor core 33A, the second rotor core 33B, and the third rotor core 33C may be indirectly fixed to the shaft 31 via other members. *
- the first magnet 34A, the second magnet 34B, and the third magnet 34C are, for example, plate-shaped extending in the circumferential direction.
- the first magnet 34A is fixed to the outer surface of the first rotor core 33A.
- the second magnet 34B is fixed to the outer surface of the second rotor core 33B.
- the third magnet 34C is fixed to the outer surface of the third rotor core 33C.
- a plurality of first magnets 34A, second magnets 34B, and third magnets 34C are provided along the circumferential direction.
- the first magnet 34A, the second magnet 34B, and the third magnet 34C may each be a single member.
- the first magnet 34A, the second magnet 34B, and the third magnet 34C are, for example, annular.
- the stator 40 is opposed to the rotor 30 in the radial direction through a gap.
- the stator 40 is disposed on the radially outer side of the rotor 30.
- the stator 40 includes a stator core 40a, a plurality of coils 43, and a plurality of insulators 44.
- the stator core 40a is configured by stacking a plurality of electromagnetic steel plates, for example.
- the stator core 40 a includes an annular core back 41 that extends in the circumferential direction, and a plurality of teeth 42 that extend from the core back 41 in the radial direction. That is, the stator 40 includes a core back 41 and teeth 42.
- the core back 41 has, for example, an annular shape centered on the central axis J.
- the outer peripheral surface of the core back 41 is fixed to the inner peripheral surface of the housing 20 by, for example, press fitting.
- the plurality of teeth 42 extend radially inward from the inner surface of the core back 41.
- the plurality of teeth 42 are arranged at equal intervals along the circumferential direction.
- the coil 43 includes a conductive wire 43 a wound around the tooth 42 via the insulator 44.
- the coil 43 is disposed on each tooth 42.
- the coil 43 has a coil end 43b which is an end of the conductive wire 43a.
- the coil end 43 b extends upward from a portion of the coil 43 wound around the tooth 42.
- At least a part of the insulator 44 is disposed between the tooth 42 and the coil 43.
- the insulator 44 covers at least a part of the tooth 42. *
- the lower bus bar assembly 70 is substantially cylindrical.
- the lower bus bar assembly 70 is disposed on the upper side of the stator 40.
- the lower bus bar assembly 70 includes a neutral point bus bar 90 and a substantially cylindrical lower bus bar holder 71 that holds the neutral point bus bar 90. That is, the motor 10 includes a neutral point bus bar 90 and a lower bus bar holder 71.
- the lower bus bar holder 71 is made of an insulating resin, for example.
- the lower bus bar holder 71 is fixed to the insulator 44.
- the neutral point bus bar 90 is electrically connected to the coil 43. More specifically, the neutral point bus bar 90 is connected to the coil end 43b. Thereby, the neutral point bus bar 90 is electrically connected to the stator 40.
- the neutral point bus bar 90 connects a plurality of coil ends 43b as neutral points. *
- the upper bus bar assembly 80 is substantially cylindrical.
- the upper bus bar assembly 80 is disposed above the lower bus bar assembly 70.
- the upper bus bar assembly 80 includes a phase bus bar 91 and an upper bus bar holder 81 that holds the phase bus bar 91. That is, the motor 10 includes a phase bus bar 91 and an upper bus bar holder 81.
- the upper bus bar holder 81 has a substantially cylindrical shape, and is made of, for example, an insulating resin.
- the upper bus bar holder 81 is fixed to the housing 20.
- the phase bus bar 91 is electrically connected to the coil 43. More specifically, the phase bus bar 91 is connected to the coil end 43b.
- the phase bus bar 91 is connected to the terminals 92A and 92B. Thereby, the phase bus bar 91 is electrically connected to the stator 40.
- the terminals 92A and 92B are plate-like members extending upward.
- the upper ends of the terminals 92 ⁇ / b> A and 92 ⁇ / b> B are disposed above the upper end of the housing 20.
- Terminals 92A and 92B are connected to an external power source (not shown). *
- the tooth 42 includes an extending portion 42 a that extends radially inward from the inner surface of the core back 41, and a distal end portion 42 b that protrudes from the distal end of the extending portion 42 a to both sides in the circumferential direction.
- the number of teeth 42 is nine. *
- the insulator 44 has a cylindrical shape that opens on both sides in the radial direction. Each insulator 44 is attached to each tooth 42.
- the insulator 44 includes a cylindrical portion 46, an umbrella portion 47, a plate portion 45, wall portions 48 a and 48 b, and at least one protruding portion 49.
- the cylinder part 46 is a cylinder shape extended in radial direction. As shown in FIG. 4, an extending portion 42 a is disposed inside the cylindrical portion 46. As shown in FIG. 5 and FIG. 6, a coil 43 formed by winding a conductive wire 43 a is disposed in the cylindrical portion 46. *
- the cylindrical portion outer surfaces 46 a and 46 b are outer surfaces on both sides in the circumferential direction of the cylindrical portion 46.
- the cylindrical portion outer surfaces 46 a and 46 b have a plurality of groove portions 46 c that are recessed toward the teeth 42. As shown in FIGS. 3 and 4, the groove 46c extends in the axial direction.
- the groove 46c extends from the upper ends of the cylinder outer surfaces 46a and 46b to the lower ends of the cylinder outer surfaces 46a and 46b.
- the plurality of groove portions 46c are arranged along the radial direction. *
- the first groove portion 46 d that is closest to the umbrella portion 47 among the plurality of groove portions 46 c is disposed in the vicinity of the radially inner ends of the cylindrical portion outer surfaces 46 a and 46 b.
- the groove portion 46c farthest from the umbrella portion 47 is disposed at the radially outer end of the tubular portion outer surface 46a.
- the planar view outer shape of the groove part 46c is a substantially semicircular arc shape.
- the curvature of the planar view outer shape of the groove 46c is, for example, the same as the curvature of the cross-sectional shape of the conductive wire 43a. Therefore, it is easy to stably hold the conductive wire 43a in the groove 46c.
- the umbrella portion 47 has a plate shape that is disposed at the end portion in the radial direction of the cylindrical portion 46 and extends on both sides in the circumferential direction.
- the umbrella part 47 is arrange
- the shape of the umbrella portion 47 viewed in the radial direction is a rectangular ring shape.
- the umbrella part 47 covers at least a part of the tip part 42b.
- the outer shape of the umbrella part 47 may be a shape other than the shape described above.
- the plate portion 45 has a plate shape that extends from the radially outer end of the cylindrical portion 46 to both sides in the circumferential direction and both sides in the axial direction.
- the shape of the plate portion 45 viewed in the radial direction is a substantially rectangular ring.
- the umbrella portion 47 and the plate portion 45 prevent the coil 43 from coming off in the radial direction.
- the outer shape of the plate portion 45 may be a shape other than the shape described above. *
- the wall portion 48a protrudes from the cylindrical portion outer surface 46a, which is the outer surface on the one circumferential side of the cylindrical portion 46, to the one circumferential side.
- the wall portion 48a is disposed on the radially outer side than the first groove portion 46d.
- the first groove portion 46d is disposed between the wall portion 48a and the umbrella portion 47 in the radial direction.
- the wall portion 48a is adjacent to the first groove portion 46d.
- the distal end of the wall portion 48a is disposed closer to the cylindrical portion 46 than the end portion on one side in the circumferential direction of the umbrella portion 47 in the circumferential direction.
- the wall front end surface 48c is a front end surface of the wall 48a. At least a part of the wall front end surface 48c is inclined and approaches the cylindrical portion 46 toward the umbrella portion 47 side (ie, radially inner side) in the radial direction.
- the wall portion front end surface 48c is a curved surface that is recessed toward the teeth 42 side. *
- the cylindrical portion outer surface 46 b is an outer surface on the other circumferential side of the cylindrical portion 46.
- the wall part 48b protrudes from the cylindrical part outer surface 46b to the other circumferential side.
- the other structure of the wall part 48b is the same as that of the wall part 48a.
- the conductive wire 43a is wound from the radially inner end of the cylindrical portion 46 toward the radially outer side. That is, the winding start position of the coil 43 (conductive wire 43a) is, for example, the end portion on the umbrella portion 47 side in the tubular portion 46.
- the coil end at the beginning of winding of the coil 43 is provided on one side in the circumferential direction of the first volume C1.
- the conductive wire 43 a constituting the coil 43 starts to be wound from one side in the circumferential direction at the radially inner end of the cylindrical portion 46.
- the conductive wire 43a is wound six times.
- the first volume C1 of the conductive wire 43a is wound around the cylindrical portion 46 along the first groove portion 46d.
- the second winding C2 of the conductive wire 43a is wound around the walls 48a and 48b along the wall tip surface 48c.
- the second roll C2 is in contact with the first roll C1.
- the third winding C3, the fourth winding C4, the fifth winding C5, and the sixth winding C6 of the conductive wire 43a are sequentially arranged along the four groove portions 46c arranged on the radially outer side than the wall portions 48a and 48b. It is wound around the cylindrical portion 46.
- the second roll C2 wound around the walls 48a and 48b is pressed against the wall tip surface 48c when the conductive wire 43a is tightened. Since the wall tip surface 48c is inclined, the second roll C2 receives a radially inward force by being pressed against the wall tip surface 48c. Thereby, as shown by the thick arrow in FIG. 5, the second volume C2 is connected to the conductive wire 43a (the first volume C1 in FIG. 5) adjacent to the inner side in the radial direction with respect to the inner side in the radial direction. Apply force in the direction tilted. *
- a first groove portion 46 d is disposed between the wall portions 48 a and 48 b and the umbrella portion 47. Therefore, the conductive wire 43a adjacent to the inner side in the radial direction of the walls 48a and 48b can be the first roll C1 disposed in the first groove 46d. Thereby, it can suppress that the 1st volume C1 in which the coil end of the winding start of the coil 43 is provided remove
- the wall portions 48a and 48b are adjacent to the radially outer side of the first groove portion 46d. Therefore, the second roll C2 comes into contact with the first roll C1 and presses the first roll C1 against the cylindrical portion 46 side. Thereby, it can suppress that the 1st volume C1 remove
- the coil end at the beginning of winding of the coil 43 is easy to move, it may be difficult to perform an operation of joining the coil end at the beginning of winding with the bus bar after the coil 43 is wound around the teeth 42.
- the first winding C1 having the first coil end is fixed by the conductive wire 43a wound around the walls 48a and 48b (that is, the second winding C2). Can be prevented from moving. Therefore, it is easy to perform an operation of joining the coil end of the winding start to the bus bar.
- the second roll C2 wound around the walls 48a and 48b can be stably held on the wall tip surface 48c. Thereby, it can suppress that the 2nd volume C2 remove
- the first roll C1 can be stably fixed by pressing the first roll C1 with the second roll C2. Therefore, it can suppress more that the 1st volume C1 remove
- the teeth 42 extend radially inward from the core back 41.
- the gap in the circumferential direction between the adjacent teeth 42 becomes narrower at the radially inner position.
- the conductive wire 43a is overlapped and wound on the inner side in the radial direction.
- the circumferential clearance between the teeth 42 is narrow at the radially inner end, it is difficult to wind the conductive wire 43a around the teeth 42.
- the first winding C1 having the coil end at the beginning of winding of the coil 43 can be fixed without overlapping the conductive wire 43a on the radially inner side.
- the protruding portion 49 protrudes from the end portion on one side in the circumferential direction of the umbrella portion 47 toward the core back 41 side. That is, the protruding portion 49 is arranged on the same side as the side on which the wall portion 48 a is arranged with respect to the cylindrical portion 46.
- the first roll C1 When the first volume C1 is pressed down by the second volume C2, the magnitude of the force with which the second volume C2 is tightened against the walls 48a and 48b, or the manner of contact between the second volume C2 and the first volume C1 Depending on the situation, the first roll C1 may be pushed out of the first groove 46d by the second roll C2.
- the protrusion 49 By providing the protrusion 49, the first roll C1 pushed out from the first groove 46d can be received by the protrusion 49 as shown in FIG. Accordingly, even when the first roll C1 is pushed out from the first groove portion 46d, it is possible to prevent the first roll C1 from coming off the cylindrical portion 46 and the coil end at the start of winding of the coil 43 from moving.
- the protruding portion 49 protrudes toward the core back 41 side means that the tip portion of the protruding portion 49 is closer to the core back 41 than the connecting portion between the protruding portion 49 and the core back 41. Including. *
- the first roll C1 received by the protrusion 49 is sandwiched and fixed in the radial direction by the second roll C2 and the protrusion 49, for example.
- At least a part of the protrusion 49 overlaps the first groove 46d in the circumferential direction. Therefore, the first roll C1 pushed out from the first groove 46d can be easily received by the protrusion 49. As a result, it is possible to further suppress the movement of the coil end at the beginning of winding of the coil 43 due to the first roll C1 being detached from the cylindrical portion 46.
- the distance between the tip of the protrusion 49 and the second volume C2 is smaller than the diameter of the conductive wire 43a. Therefore, it is possible to prevent the first roll C1 from being pushed out from between the protruding portion 49 and the second roll C2 to the side away from the cylindrical portion 46. Therefore, the first roll C1 can be prevented from moving from the teeth 42.
- the planar view shape of the protrusion 49 is triangular.
- the planar view shape of the protrusion 49 is not particularly limited, and may be, for example, a semicircular shape, a semi-elliptical shape, or a polygonal shape.
- the protruding portion inner side surface 49a is a surface (surface on the other side in the circumferential direction) that faces the cylindrical portion 46 in the circumferential direction of the protruding portion 49, and is a curved surface that is recessed toward one side in the circumferential direction. Therefore, as shown in FIG.
- the protrusion 49 extends in the axial direction.
- the upper end of the protruding portion 49 is disposed above the cylindrical portion upper surface 46 e that is the upper end of the cylindrical portion 46.
- the lower end of the protrusion 49 is disposed below the upper surface 46e of the cylinder part. Therefore, it is easier to receive the first volume C ⁇ b> 1 wound around the cylindrical portion 46 by the protruding portion 49.
- the upper end of the protruding portion 49 is disposed at substantially the same position as the upper end of the umbrella portion 47 in the axial direction.
- the lower end of the protruding portion 49 is disposed between the upper end of the cylindrical portion 46 and the lower end of the cylindrical portion 46 in the axial direction.
- the insulator 44 includes an upper piece 44b and a lower piece 44c.
- the upper piece 44b and the lower piece 44c are separate members.
- the upper piece 44 b is an upper part of the insulator 44.
- the lower piece 44 c is a lower part of the insulator 44.
- the protrusion 49 is provided only on the upper piece 44b.
- the insulator 44 may be a single member, for example. *
- each of the wall portion 48 a and the protruding portion 49 is disposed on the same side in the circumferential direction with respect to the cylindrical portion 46. That is, in all the teeth 42, each of the wall portion 48 a and the protruding portion 49 is disposed on the same side in the circumferential direction with respect to the cylindrical portion 46. Therefore, when the coil 43 is wound around each tooth 42 in the same manner, the first volume C1 can be fixed in any of the teeth 42. As a result, it is possible to suppress the first roll C1 from coming off the teeth 42. *
- the conductive wire 43a wound around the walls 48a and 48b may have any number of turns.
- the conductive wire 43a wound around the walls 48a and 48b may be, for example, any one of the third roll C3 to the sixth roll C6.
- the first roll C1 is pressed and fixed by the several conductive wires 43a wound around the walls 48a and 48b.
- Both the wall 48a and the wall 48b are not necessarily provided, and only the wall 48a may be provided.
- the wall tip surface 48c may be entirely inclined.
- the wall front end surface 48c may be a flat surface.
- a plurality of protruding portions 49 may be provided on one umbrella portion 47.
- the protruding portions 49 may be disposed on both sides of the umbrella portion 47 in the circumferential direction. In this case, even when the coil 43 is started to be wound from either side in the circumferential direction of the tooth 42, the first turn C1 can be prevented from being detached from the tooth 42.
- the motor 10 may be an outer rotor type motor. *
- the protruding portion 49 may extend from the upper end of the umbrella portion 47 to the lower end of the umbrella portion 47.
- the protrusion inner side surface 49a may be a flat surface.
- the number of rotor cores in the rotor 30 may be one. *
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Insulation, Fastening Of Motor, Generator Windings (AREA)
- Manufacture Of Motors, Generators (AREA)
Abstract
Description
に延びる。この実施形態では、アンブレラ部47の径方向に視た形状は、矩形環状である。図4に示すように、アンブレラ部47は、先端部42bの少なくとも一部を覆う。なお、アンブレラ部47の外形は、上述した形状以外の形状であってもよい。
Claims (10)
- 上下方向に伸びる中心軸を中心とする周方向に延びる環状のコアバックと、
前記コアバックから径方向に延びる複数のティースと、
前記ティースの少なくとも一部を覆う複数のインシュレータと、
前記インシュレータを介して前記ティースに巻き回された導電線よりなるコイルと、
を備え、
前記インシュレータは、
径方向に延びる筒状の筒部と、
前記筒部の径方向の端部に配置され、周方向両側に延びるアンブレラ部と、
前記筒部の外側面から周方向一方側に突出する壁部と、
を有し、
前記壁部の先端面の少なくとも一部は、傾斜しており、径方向において前記アンブレラ部側に向かうに従って前記筒部に近づき、
前記インシュレータは、前記アンブレラ部の周方向一方側の端部から前記コアバック側に向かって突出する少なくとも一つの突出部を有する、ステータ。 - 前記筒部の外側面は、軸方向に延び前記ティースに向かって窪む複数の溝部を有し、
複数の前記溝部は、径方向に沿って配置され、
複数の前記溝部のうちで最も前記アンブレラ部に近い第1溝部は、径方向において前記壁部と前記アンブレラ部との間に配置される、請求項1に記載のステータ。 - 前記突出部の少なくとも一部は、前記第1溝部と周方向に重なる、請求項2に記載のステータ。
- 前記壁部の先端面は、前記ティース側に窪む曲面である、請求項1から3のいずれか一項に記載のステータ。
- すべての前記ティースにおいて、前記壁部および前記突出部のそれぞれは、前記筒部に対して周方向の同じ側に配置される、請求項1から4のいずれか一項に記載のステータ。
- 前記突出部の上端は、前記筒部の上端よりも上側に配置され、
前記突出部の下端は、前記筒部の上端よりも下側に配置される、請求項1から5のいずれか一項に記載のステータ。 - 前記突出部の周方向における前記筒部に向かう面は、周方向一方側に窪んだ曲面である、請求項1から6のいずれか一項に記載のステータ。
- 前記ティースは、前記コアバックの内側面から径方向内側に延びる、
請求項1から7のいずれか一項に記載のステータ。 - 前記コイルの巻き始めの位置は、前記筒部における前記アンブレラ部側の端部である、請求項1から8のいずれか一項に記載のステータ。
- 請求項1から9のいずれか一項に記載のステータと、
前記ステータに対して相対的に回転可能なロータと、
を備える、モータ。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE112016003644.2T DE112016003644T5 (de) | 2015-08-10 | 2016-08-05 | Stator und Motor |
CN201680046915.3A CN107925293B (zh) | 2015-08-10 | 2016-08-05 | 定子和马达 |
KR1020187003353A KR101999618B1 (ko) | 2015-08-10 | 2016-08-05 | 스테이터 및 모터 |
US15/751,186 US10498185B2 (en) | 2015-08-10 | 2016-08-05 | Stator and motor |
JP2017534422A JP6885333B2 (ja) | 2015-08-10 | 2016-08-05 | ステータ、およびモータ |
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WO2018221565A1 (ja) * | 2017-06-02 | 2018-12-06 | デンソートリム株式会社 | 回転電機および回転電機の製造方法 |
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CN109428423B (zh) * | 2017-08-22 | 2020-09-25 | 马渊马达株式会社 | 定子及其制造方法、马达及其制造方法、绕线方法 |
US11496027B2 (en) * | 2018-09-28 | 2022-11-08 | Nidec Servo Corporation | Motor |
CN113039704B (zh) * | 2018-12-13 | 2024-05-31 | 松下知识产权经营株式会社 | 定子及使用该定子的电动机 |
JP2020124076A (ja) * | 2019-01-31 | 2020-08-13 | 日本電産株式会社 | ステータ、モータおよび送風装置 |
JP2020137177A (ja) * | 2019-02-14 | 2020-08-31 | 日本電産株式会社 | ステータ |
JP7194625B2 (ja) * | 2019-03-27 | 2022-12-22 | 株式会社山田製作所 | モータ用ステータ |
JP7194624B2 (ja) * | 2019-03-27 | 2022-12-22 | 株式会社山田製作所 | インシュレータ |
DE102019207330A1 (de) * | 2019-05-20 | 2020-11-26 | Audi Ag | Bauteil für eine Elektromaschine |
JP2021057986A (ja) * | 2019-09-30 | 2021-04-08 | 日本電産株式会社 | ステータおよびモータ |
DE102020200516A1 (de) | 2020-01-17 | 2021-07-22 | Robert Bosch Gesellschaft mit beschränkter Haftung | Isoliermaskeneinheit, Verfahren zum Bewickeln eines Grundkörpers einer elektrischen Maschine und elektrische Maschine |
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JPH10304605A (ja) * | 1997-04-24 | 1998-11-13 | Toshiba Corp | 直流モータ |
JP3575987B2 (ja) | 1998-05-08 | 2004-10-13 | 松下エコシステムズ株式会社 | 電動機の固定子 |
JP3952290B2 (ja) * | 2002-09-06 | 2007-08-01 | ヤマハモーターエレクトロニクス株式会社 | 回転電気機器の電機子及びその巻線方法 |
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JP2011259614A (ja) * | 2010-06-09 | 2011-12-22 | Mitsubishi Electric Corp | 回転電機の固定子 |
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KR101999618B1 (ko) | 2019-07-12 |
CN107925293A (zh) | 2018-04-17 |
CN107925293B (zh) | 2019-12-24 |
JP6885333B2 (ja) | 2021-06-16 |
DE112016003644T5 (de) | 2018-05-09 |
KR20180021197A (ko) | 2018-02-28 |
US20180233983A1 (en) | 2018-08-16 |
US10498185B2 (en) | 2019-12-03 |
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