WO2022145246A1 - インシュレータ、電動機及び応用機器 - Google Patents
インシュレータ、電動機及び応用機器 Download PDFInfo
- Publication number
- WO2022145246A1 WO2022145246A1 PCT/JP2021/046360 JP2021046360W WO2022145246A1 WO 2022145246 A1 WO2022145246 A1 WO 2022145246A1 JP 2021046360 W JP2021046360 W JP 2021046360W WO 2022145246 A1 WO2022145246 A1 WO 2022145246A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- wall
- wire
- insulator
- peripheral portion
- introduction
- Prior art date
Links
- 239000012212 insulator Substances 0.000 title claims abstract description 77
- 238000004804 winding Methods 0.000 claims abstract description 57
- 238000000926 separation method Methods 0.000 claims abstract description 9
- 230000002093 peripheral effect Effects 0.000 claims description 91
- 238000002955 isolation Methods 0.000 claims description 38
- 230000000630 rising effect Effects 0.000 claims description 11
- 238000003780 insertion Methods 0.000 description 6
- 230000037431 insertion Effects 0.000 description 6
- 230000004048 modification Effects 0.000 description 6
- 238000012986 modification Methods 0.000 description 6
- 239000003507 refrigerant Substances 0.000 description 4
- 238000005452 bending Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 239000004020 conductor Substances 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
Images
Classifications
-
- 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
-
- 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
-
- 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
- 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
- H02K1/146—Stator cores with salient poles consisting of a generally annular yoke with salient poles
Definitions
- This disclosure relates to insulators, motors and applied equipment.
- the insulator of Patent Document 1 As a conventional insulator, the insulator of Patent Document 1 is known. This insulator has a coil winding portion around which a coil is wound, and a first flange portion provided at one end of the coil winding portion and having a coil introduction groove formed therein.
- the coil passes through the coil introduction groove and is wound around the coil winding portion.
- the degree of deformation of the coil differs depending on the material, wire diameter, and the like. Therefore, when the coil is introduced from the coil introduction groove to the coil winding portion, it may be greatly curved and the coil may not be wound in a predetermined position.
- the first winding portion wound around the coil winding portion may overlap the winding start portion of the coil introduced into the coil winding portion from the coil introduction groove, and the coil may be disturbed. As a result, the space factor of the coil in the coil winding portion decreases, and the efficiency of the motor using the coil decreases.
- the purpose of this disclosure is to provide insulators, motors and applied equipment with improved wire space factor.
- the insulator according to the first aspect of the present disclosure includes an annular outer peripheral portion and a winding portion extending from the outer peripheral portion toward the center of the outer peripheral portion in a first direction and around which a wire is wound.
- the portion is provided between the introduction portion where the wire is introduced from the outer peripheral portion, the circumferential portion around which the wire introduced from the introduction portion circulates, and the introduction portion and the circling portion in the first direction.
- the wire is provided with an isolation wall that separates the portion introduced in the introduction portion and the portion of the first winding wound around the peripheral portion of the wire.
- the portion of the wire introduced at the introduction portion and the portion of the first winding wound around the peripheral portion are separated by a separation wall. Therefore, since the wire is aligned and wound around the peripheral portion without being disturbed by the introduced portion of the wire, the space factor of the wire can be improved.
- the introduction portion and the separation wall are orthogonal to the first direction and the first direction and are tangential to the outer peripheral portion. It is tilted with respect to the second direction.
- the wire can be easily cross-wound by winding the wire along the separation wall.
- the isolation wall rises from the peripheral portion in a third direction along the center line of the outer peripheral portion, and a rising portion. It has an inclined portion extending from the upper end of the rising portion and inclined to the side opposite to the first direction with respect to the third direction.
- the peripheral portion is a top surface and an end in the top surface in a direction along at least the separation wall. It has a groove provided in.
- the outer peripheral portion thereof is an annular portion, an inner wall portion connected to the inner peripheral end of the annular portion, and an inner wall portion.
- the annular portion has a guide portion that guides the wire to the introduction portion, and the guide portion has a groove shape and has an opening opened in the inner wall portion, and the opening faces the isolation wall. is doing.
- the outer peripheral portion has an extending wall along the inner wall portion, and the isolation wall is on the first direction side with respect to the extending wall. positioned.
- the electric motor according to the seventh aspect of the present disclosure includes an insulator of any one of the first to sixth aspects and the wire. As a result, since an insulator having a high wire occupancy rate is used, it is possible to improve the driving efficiency of the electric motor.
- the applied device according to the eighth aspect of the present disclosure includes the electric motor according to the seventh aspect. As a result, since an insulator having a high wire occupancy rate is used, it is possible to improve the driving efficiency of the applied equipment.
- FIG. 9A is a view of a part of the insulator according to the modified example 1 as viewed from above.
- FIG. 9B is a diagram in which a wire is wound around the winding portion of the insulator of FIG. 9A.
- FIG. 10A is a view of a part of the insulator according to the modified example 2 as viewed from above.
- FIG. 10B is a diagram in which a wire is wound around the winding portion of the insulator of FIG. 10A. It is a figure which shows the electric motor which concerns on Embodiment 2 and the application equipment provided with this.
- the insulator 10 according to the first embodiment is provided in the electric motor 20 as shown in FIG. 1, for example.
- the motor 20 includes a rotor 21 and a stator 40 that surrounds the rotor 21.
- the rotor 21 has a cylindrical rotor core 22 and a plurality of magnets arranged on the outer peripheral surface thereof.
- the rotor core 22 is made of a plurality of laminated magnetic steel sheets, and the magnet is made of a permanent magnet whose surface orthogonal to the axis of the rotor core 22 is arcuate.
- the stator 40 has a cylindrical shape, and the rotor 21 is fitted in the central hole thereof and is arranged coaxially with the rotor 21.
- the inner peripheral surface of the stator 40 faces the outer peripheral surface of the rotor 21 with a gap.
- the axial direction which is the direction of the central axis of the stator 40, is referred to as a vertical direction.
- the arrangement direction of the stator 40 is not limited to this.
- the stator 40 has a stator core 41, an insulator 10 attached to the stator core 41, and a wire 42 wound together around the stator core 41 and the insulator 10.
- the stator core 41 and the wire 42 are made of a conductive material
- the insulator 10 is made of an electrically insulating resin.
- the insulator 10 electrically insulates the stator core 41 and the wire 42 from each other.
- the stator core 41 has a rectangular parallelepiped shape and has a through hole 43, a back yoke portion 44, a protruding portion 45, and a flange portion 46.
- the back yoke portion 44, the protruding portion 45, and the flange portion 46 are integrally formed, and are made of a plurality of laminated electromagnetic steel sheets.
- the through hole 43 penetrates between the upper surface and the lower surface of the stator core 41 at the center of the stator core 41.
- the space formed by the through hole 43 has a cylindrical shape whose axis extends in the vertical direction.
- the back yoke portion 44 is a portion of the stator core 41 on the axial side (inside) and the opposite side (outside) of the through hole 43 in the radial direction about the axis of the through hole 43, and surrounds the periphery of the through hole 43. It has an inner peripheral surface.
- a plurality of (for example, nine) projecting portions 45 are provided, and are arranged at equal intervals with each other in the circumferential direction centered on the axis of the through hole 43.
- the protruding portion 45 has, for example, a flat plate shape and protrudes inward in the radial direction from the inner peripheral surface of the back yoke portion 44.
- the outer end of the protruding portion 45 is connected to the inner peripheral surface of the back yoke portion 44, and the inner end thereof is connected to the flange portion 46.
- the inner peripheral surface of the flange portion 46 is arcuate when viewed from above, and the protruding portion 45 is connected to the center in the circumferential direction. Therefore, the flange portion 46 projects from the protruding portion 45 on both sides in the circumferential direction.
- the flange portions 46 are arranged in a cylindrical shape with a gap between the flange portions 46 adjacent to each other in the circumferential direction.
- the insulator 10 has a cylindrical shape in which the central axis extends in the vertical direction.
- the insulator 10 is composed of a plurality of portions divided in the circumferential direction around the central axis, and a cylindrical shape may be formed by connecting these portions in the circumferential direction. Further, the insulator 10 has an upper insulator 10a covering the upper part of the stator core 41 and a lower insulator 10b covering the lower part of the stator core 41.
- the upper insulator 10a is an annular outer peripheral portion 11, a plurality of (for example, nine) winding portions 50 projecting in a first direction (for example, inside) from the outer peripheral portion 11 toward the center 11a of the outer peripheral portion 11 in the radial direction. Further, it has a plurality of (for example, nine) inner peripheral portions 12 connected to the inner end of the winding portion 50.
- the winding portions 50 are arranged at equal intervals with each other in the circumferential direction around the center 11a of the outer peripheral portion 11.
- the space between the winding portions 50 adjacent to each other is a slot 47 into which the wire 42 is inserted.
- the wire 42 is wound around the winding portion 50 between the slots 47 adjacent to each other.
- the outer peripheral portion 11 has, for example, an annular shape, and has an annular portion 13, an inner wall portion 14, an extending wall 15, and a guide portion 16.
- the annular portion 13 has an annular shape and is orthogonal to the vertical direction.
- the annular portion 13 has an inner inner peripheral end on the central side thereof and an outer peripheral end on the opposite side to the inner side. As shown in FIG. 2, in a state where the upper insulator 10a is attached to the upper part of the stator core 41, the annular portion 13 is superposed on the upper surface of the stator core 41 so as to surround the periphery of the through hole 43.
- the details of the guide unit 16 will be described later.
- the inner wall portions 14 are provided at intervals of the winding portions 50 adjacent to each other in the circumferential direction, and extend downward from the inner peripheral end of the annular portion 13.
- the inner wall portion 14 has an arc shape when viewed from above. As shown in FIG. 2, in a state where the upper insulator 10a is attached to the upper part of the stator core 41, the inner wall portion 14 covers the inner peripheral surface of the stator core 41 in the gap between the protruding portions 45 adjacent to each other in the circumferential direction.
- a plurality of (for example, nine) extending walls 15 are provided at the inner peripheral ends of the annular portion 13. At least a part of the extending wall 15 is arranged so as to overlap with the winding portion 50 when viewed in the radial direction from the inside. For example, one side (for example, the right side) of the extending wall 15 in the circumferential direction overlaps the other side (for example, the left side) in the circumferential direction of the winding portion 50 when viewed from the inside.
- the extending wall 15 extends upward from the inner peripheral end of the annular portion 13, has a trapezoidal shape when viewed from the inside, and has a flat plate shape having a thickness in the radial direction thinner than that of the annular portion 13.
- the lower end of the extending wall 15 is connected to the annular portion 13, and the upper end thereof is provided with a bent portion 15a that bends outward in the radial direction.
- An insertion portion 15b into which the wire 42 is inserted is formed in the space surrounded by the bent portion 15a and the extending wall 15.
- the insertion portion 15b is outside the extending wall 15 and below the bending portion 15a.
- the wire 42 is locked by the bent portion 15a and the extending wall 15, and is inserted into the winding portion 50 via the guide portion 16.
- the outer end of the winding portion 50 is connected to the inner wall portion 14, and the inner end thereof is connected to the inner peripheral portion 12.
- the winding portion 50 has a peripheral portion 51, an introduction portion 52, and a separation wall 60.
- the peripheral portion 51 is provided on the side opposite to the introduction portion 52 with the isolation wall 60 sandwiched in the radial direction, protrudes inward from the isolation wall 60, and is a portion around which the wire 42 introduced from the introduction portion 52 is wound. be.
- the details of the introduction unit 52 and the isolation wall 60 will be described later.
- the peripheral portion 51 has a U-shape in the opposite direction in which the cross section orthogonal to the radial direction is recessed upward, and the upper wall 53, the left side wall 54 on the left side of the upper wall 53, and the right side of the upper wall 53. It has a right side wall 55.
- the upper wall 53 has, for example, a rectangular flat plate shape, and its circumferential length is shorter than its radial length.
- the top surface 56 which is the upper surface of the upper wall 53, is inclined downward toward the outside with respect to a surface orthogonal to the vertical direction.
- the top surface 56 has a central portion 56a, a left side portion 56b on the left side of the central portion 56a, and a right side portion 56c on the right side of the central portion 56a.
- the central portion 56a is flat, the left side portion 56b is inclined downward toward the left side, and the right side portion 56c is inclined downward toward the right side.
- the central portion 56a is a portion including the central position in the circumferential direction on the top surface 56, the left side portion 56b is a portion including the left end of the top surface 56, and the right side portion 56c is a portion including the right end of the top surface 56. ..
- the upper end of the left side wall 54 is connected to the left end of the upper wall 53
- the upper end of the right side wall 55 is connected to the right end of the upper wall 53
- the left side wall 54 and the right side wall 55 extend downward from the upper wall 53.
- the upper wall 53 covers the upper surface of the protrusion 45
- the left side wall 54 covers the left surface of the protrusion 45
- the right side wall 55 protrudes. Covers the right side of the portion 45.
- the inner peripheral portion 12 has, for example, a semicircular shape protruding upward when viewed from the inside, intersects (for example, orthogonally) with the upper wall 53, and rises upward from the upper wall 53.
- the inner peripheral surface of the inner peripheral portion 12 has an arc shape when viewed from above, is longer than the upper wall 53 in the circumferential direction, and the center thereof is connected to the upper wall 53, from the right end of the upper wall 53. It protrudes to the right and protrudes from the left end of the upper wall 53 to the left.
- the right end and the left end of the inner peripheral portion 12 project outward in the radial direction.
- the inner peripheral portion 12 is arranged on the flange portion 46 of the stator core 41 in a state where the upper insulator 10a is attached to the upper portion of the stator core 41.
- the inner peripheral surface of the inner peripheral portion 12 and the inner peripheral surface of the flange portion 46 are arranged on the same surface as each other, and form the inner peripheral surface of the stator 40.
- the lower insulator 10b includes an outer peripheral portion 11, a winding portion 50, and an inner peripheral portion 12, and the outer peripheral portion 11 has an annular portion 13 and an inner wall portion 14, and the winding portion is provided.
- 50 has an upper wall 53, a left side wall 54 and a right side wall 55.
- the inner peripheral portion 12, the annular portion 13, the inner wall portion 14, the lower wall 58, the left side wall 54 and the right side wall 55 in the lower insulator 10b are the inner peripheral portion 12, the annular portion 13, and the inner wall portion 14 in the upper insulator 10a. The same applies to the upper wall 53, the left side wall 54, and the right side wall 55, respectively.
- the guide portion 16 extends from the insertion portion 15b to the right side in the circumferential direction in the annular portion 13, and extends linearly inward toward the winding portion 50 toward the right side. ing.
- the guide portion 16 may have a groove shape at least partially in the stretching direction thereof.
- the guide portion 16 has a groove shape in a portion further to the right from the right end of the extending wall 15, and is deeper toward the right side.
- the right end of the guide portion 16 is open to the inner wall portion 14, and the guide portion 16 has a right opening 16a.
- the wire 42 that has passed through the insertion portion 15b is guided by the guide portion 16 and extends to the winding portion 50 through the right opening 16a.
- the left end of the introduction portion 52 is connected to the right opening 16a of the guide portion 16, and the right end thereof is arranged at the right corner portion 50a which is the right end of the outer end of the winding portion 50 connected to the inner wall portion 14. There is.
- the introduction portion 52, together with the guide portion 16, extends linearly from the insertion portion 15b toward the right corner portion 50a.
- the right corner portion 50a is adjacent to the left corner portion 47a in the slot 47 between the inner wall portion 14 and the right end of the winding portion 50 in the circumferential direction.
- the wire 42 extends from the insertion portion 15b through the guide portion 16 and the introduction portion 52 in a straight line toward the right side, and is guided downward toward the right side, and extends from the right corner portion 50a to the left corner portion 47a.
- the introduction portion 52 has a groove shape and is deeper toward the right side. As a result, the bottom of the introduction portion 52 is inclined downward toward the right side.
- the right end of the introduction portion 52 is connected to the upper end of the right side surface 57 of the winding portion 50.
- the right side surface 57 is formed by a curved surface that rises inward from the inner wall portion 14 and is curved to the left toward the inside and recessed in the circumferential direction.
- the angle between the bottom of the introduction portion 52 and the right side surface 57 is larger than 90 degrees, and there is no sharp ridge at the right corner portion 50a. Therefore, the wire 42 is guided to the lower right side surface 57 along the bottom of the introduction portion 52, and can smoothly move in the right corner portion 50a between them. Further, the bending of the wire 42 when extending from the introduction portion 52 to the right side surface 57 is reduced, and the wires 42 are aligned and wound around the winding portion 50.
- the isolation wall 60 projects inward from the inner wall portion 14 inside the extending wall 15 and is provided in the winding portion 50.
- the isolation wall 60 includes an inner wall surface 61, an outer wall surface 62 on the opposite side of the inner wall surface 61 in the radial direction, a left wall surface 63 connected to the left end of the inner wall surface 61, and a right wall surface on the opposite side of the left wall surface 63 in the circumferential direction.
- the left wall surface 63 is formed by a curved surface that rises inward from the inner wall portion 14, curves to the right toward the inside, and is recessed to the right.
- At least a part of the isolation wall 60 is arranged so as to overlap the extending wall 15 when viewed radially from the inside.
- one side of the isolation wall 60 in the circumferential direction overlaps with the other side of the extension wall 15 in the circumferential direction (for example, the right side) when viewed from the inside.
- the left part of the isolation wall 60 is connected to the right part of the extension wall 15, and the right part of the isolation wall 60 extends to the right side of the extension wall 15.
- a right wall surface 64 is provided on the upper surface, and an outer wall surface 62 is provided on the outer surface thereof.
- the right wall surface 64 is inclined downward toward the right side from the right end of the extending wall 15.
- the left end of the right wall surface 64 is adjacent to the introduction portion 52 in the circumferential direction when viewed from above, and the right end thereof is arranged inside the introduction portion 52 in the radial direction.
- the outer wall surface 62 faces the right opening 16a of the guide portion 16 and extends inward toward the right side along the introduction portion 52 inside the introduction portion 52.
- the wire 42 is introduced into the introduction portion 52 from the right opening 16a of the guide portion 16 and is guided inward along the outer wall surface 62.
- the wire 42 introduced into the introduction portion 52 is less likely to be greatly curved inward by the isolation wall 60 inside the introduction portion 52. Therefore, it is possible to prevent the introduced portion 42a of the wire 42 from interfering with the wire 42 wound around the peripheral portion 51 inside the isolation wall 60. Therefore, the wire 42 can be wound in line with the peripheral portion 51, the space factor of the wire 42 in the insulator 10 can be increased, and the efficiency of the motor 20 using the insulator 10 can be improved.
- the inner wall surface 61 is provided over the entire length of the winding portion 50 in the circumferential direction.
- the left end of the inner wall surface 61 is connected to the left wall surface 63 in the circumferential direction
- the right end is connected to the right wall surface 64
- the upper end is connected to the extending wall 15 in the vertical direction
- the lower end is connected to the top surface 56 of the peripheral portion 51.
- the first winding portion 42b of the wire 42 wound clockwise around the peripheral portion 51 when viewed from the inside extends to the right side in the circumferential direction along the inner wall surface 61 on the top surface 56.
- the wire 42 on the nth lap (n is an integer of 2 or more) extends in the circumferential direction along the wire 42 on the top surface 56 inside the wire 42 on the (n-1) lap.
- the portion 42a introduced by the introduction portion 52 outside the isolation wall 60 and the first winding portion 42b wound around the peripheral portion 51 inside the isolation wall 60 are the isolation wall 60. Separated by. Therefore, the wires 42 are aligned and wound around the peripheral portion 51, the space factor of the wires 42 in the insulator 10 can be increased, and the efficiency of the electric motor 20 using the insulator 10 can be improved.
- the inner wall surface 61 has a rising portion 65 that rises in a third direction (for example, upward) from the top surface 56 of the peripheral portion 51.
- the third direction is a direction along the center line 11b of the peripheral portion 11 from the peripheral portion 51.
- the rising portion 65 is, for example, flat and extends in the vertical direction and the direction orthogonal to the radial direction.
- the rising portion 65 has a length L in the vertical direction equal to or shorter than the diameter of the wire 42.
- the wires 42 in the (m + 1) stage arranged on the mth stage (m is an integer of 1 or more) can be wound on the wires 42 adjacent to each other in the radial direction in the mth stage. Therefore, it is possible to increase the space factor of the wire 42 in the insulator 10 and improve the efficiency of the electric motor 20 using the insulator 10.
- the inclined portion 66 above the rising portion 65 is, for example, flat and extends upward from the upper end of the rising portion 65.
- the inclined portion 66 is inclined in the vertical direction so as to be outward toward the upper side, and the angle formed with the top surface 56 thereof is larger than 90 degrees.
- the surface of the inner peripheral portion 12 facing the inner wall surface 61 extends in the vertical direction. Therefore, the winding space of the wire 42 in the peripheral portion 51 between the inner wall portion 14 and the inclined portion 66 can be taken larger toward the upper side.
- the space factor of the wire 42 in the insulator 10 can be increased, and the efficiency of the electric motor 20 using the insulator 10 can be improved.
- the upper opening in the winding space can be made large, and the wire 42 can be easily inserted into the winding space from the upper opening and the wire 42 can be easily wound around the peripheral portion 51.
- the peripheral portion 51 extends along the separation wall 60 at the top surface 56 and the top surface 56, and the top surface 56. It has a groove that deepens toward the edge of. This groove has a left side groove 59a provided on the left side portion 56b of the top surface 56 and a right side groove 59b provided on the right side portion 56c of the top surface 56.
- the left side groove 59a and the right side groove 59b extend along the inner wall surface 61 of the isolation wall 60 on the top surface 56.
- the first wire 42 wound on the top surface 56 fits into the left side groove 59a and the right side groove 59b, and is wound around the peripheral portion 51 along the inner wall surface 61 of the isolation wall 60.
- the first-stage wire 42 wound on the top surface 56 can be aligned along the first winding. Therefore, the space factor of the wire 42 in the insulator 10 can be increased, and the efficiency of the electric motor 20 using the insulator 10 can be improved.
- the left side groove 59a is deeper toward the left side of the left side portion 56b
- the right side groove 59b is deeper toward the right side of the right side portion 56c. Therefore, the angle between the bottom of the left side groove 59a and the left side wall 54 and the angle between the bottom of the right side groove 59b and the right side wall 55 are obtuse angles larger than 90 degrees. Thereby, it is possible to reduce the large bending of the wire 42 when guiding the wire 42 from the right side groove 59b to the right side wall 55 and when guiding the wire 42 from the left wall surface 63 to the left side groove 59a. Therefore, the wire 42 can be aligned and wound around the peripheral portion 51.
- the introduction portion 52 and the isolation wall 60 are orthogonal to the first direction and the first direction and are tangential to the outer peripheral portion 11. It is tilted in two directions.
- the introduction portion 52 and the isolation wall 60 are radially inward toward the right side in the circumferential direction and with respect to a direction orthogonal to the radial direction. It is tilted.
- the wire 42 is introduced to the circumferential portion 51 side while inclining inward toward the right side in the introduction portion 52. Then, in the peripheral portion 51, the first-stage wire 42 is wound on the top surface 56 while being inclined inward toward the right side along the inner wall surface 61. The second-stage wire 42 is wound around the first-stage wire 42 while being inclined outward toward the right side.
- the isolation wall 60 is larger than the introduction portion 52 in the radial direction as shown in FIG. 10A in the first embodiment or the modified examples 1 and 2. If it is inside, the isolation wall 60 may not be provided over the entire length of the winding portion 50 in the circumferential direction.
- the right end of the isolation wall 60 is on the left side of the right end of the winding portion 50. Therefore, a gap is provided between the right end of the isolation wall 60 and the right end of the winding portion 50.
- the right end of the isolation wall 60 is on the right side of the left end of the introduction portion 52, and the isolation wall 60 is provided between the left portion of the introduction portion 52 and the peripheral portion 51 in the radial direction. Therefore, as shown in FIG. 10B, the portion 42a introduced by the introduction portion 52 and the portion 42b wound around the peripheral portion 51 of the wire 42 are separated by the isolation wall 60.
- the wires 42 can be aligned and wound around the peripheral portion 51, so that the space factor of the wires 42 in the insulator 10 can be increased and the efficiency of the motor 20 using the insulator 10 can be improved.
- the electric motor 20 As shown in FIG. 1, the electric motor 20 according to the second embodiment includes a stator 40 and a rotor 21 that rotates with respect to the stator 40, and the rotor 21 includes a stator core 41, a wire 42, and an insulator 10 that electrically insulates them. have.
- An example of the electric motor 20 is a motor.
- the application device 30 has a built-in electric motor 20 and is driven by the electric motor 20.
- the application device 30 is, for example, a refrigerant compressor.
- This refrigerant compressor is provided in, for example, a refrigerator and an air conditioner. More specifically, the device provided with the refrigerant compressor includes, for example, a refrigerator, a freezer, an air conditioner, a showcase, and a vending machine.
- various devices such as a blower, a pump, and a driving source for traveling of a vehicle can be exemplified.
- the insulator 10 according to any one of the first and second embodiments and the first to third embodiments is used.
- the insulator 10 having an improved space factor of the wire 42 can improve the driving efficiency of the electric motor 20 and the applied equipment 30.
- the insulators, motors and applied equipment according to the present disclosure are useful as insulators, motors and applied equipment for improving the space factor of wires.
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Abstract
Description
<電動機の構成>
実施の形態1に係るインシュレータ10は、例えば、図1に示すように、電動機20に備えられる。この電動機20は、ロータ21、及び、このロータ21の周囲を取り囲むステータ40を備えている。ロータ21は、円筒形状のロータコア22、及び、その外周面上に配置された複数の磁石を有している。ロータコア22は、積層された複数の電磁鋼板から成り、磁石は、ロータコア22の軸に直交する面が円弧形状の永久磁石から成る。
ステータ40は、円筒形状であって、その中央孔にロータ21が嵌められて、ロータ21と同軸に配置されている。ステータ40は、その内周面がロータ21の外周面に対し間隔を空けて対向している。なお、ステータ40の中心軸の方向である軸方向を、上下方向と称する。但し、ステータ40の配置方向は、これに限定されない。
図4~図8に示すように、案内部16は、円環部13において挿入部15bから周方向の右側に延びており、右側ほど内側に向かって直線状に延びて巻付部50に向かっている。案内部16は、その延伸方向において少なくとも一部に溝形状を有していてもよい。例えば、案内部16は、延出壁15の右端からさらに右側に向かった部分において溝形状になっており、右側ほど深くなっている。
変形例1に係るインシュレータ10では、実施の形態1において、図4~図6に示すように、周回部51は、天面56、及び、天面56において隔離壁60に沿って延び天面56の端に向かって深くなる溝を備えている。この溝は、天面56の左側部分56bに設けられた左側溝59a、及び、天面56の右側部分56cに設けられた右側溝59bを有している。
変形例2に係るインシュレータ10では、実施の形態1又は変形例1において、導入部52及び隔離壁60は、第1方向、及び、第1方向に直交すると共に外周部11の接線方向である第2方向に対して傾斜している。例えば、図9(a)に示すように、導入部52及び隔離壁60は、周方向の右側ほど径方向の内側に向かって、径方向、及び、径方向に対して直交する方向に対して傾斜している。
変形例3に係るインシュレータ10は、実施の形態1又は変形例1、2において、図10(a)に示すように、隔離壁60のうちの少なくとも一部が、径方向において導入部52よりも内側にあれば、隔離壁60は巻付部50の周方向の全長に亘って設けられていなくてもよい。
実施の形態2に係る電動機20は、図1に示すように、ステータ40及びステータ40に対して回転するロータ21を備え、ロータ21はステータコア41、ワイヤ42及びこれらを電気的に絶縁するインシュレータ10を有している。電動機20としては、モータが例示される。
11 :外周部
13 :円環部
14 :内壁部
16 :案内部
20 :電動機
30 :応用機器
42 :ワイヤ
50 :巻付部
51 :周回部
52 :導入部
56 :天面
60 :隔離壁
65 :立ち上がり部分
66 :傾斜部分
Claims (8)
- 環状の外周部と、
前記外周部から前記外周部の中心へ向かう第1方向に延び且つワイヤが巻き付けられる巻付部と、を備え、
前記巻付部は、
前記ワイヤが前記外周部から導入される導入部と、
前記導入部から導入された前記ワイヤが周回する周回部と、
前記第1方向において前記導入部と前記周回部との間に設けられ、前記ワイヤのうち前記導入部において導入された部分と前記周回部に巻き付けられた1巻き目の部分とを隔てる隔離壁と、を備えているインシュレータ。 - 前記導入部及び前記隔離壁は、前記第1方向、及び、前記第1方向に直交すると共に前記外周部の接線方向である第2方向に対して傾斜している、請求項1に記載のインシュレータ。
- 前記隔離壁は、前記周回部から前記外周部の中心線に沿う方向である第3方向に立ち上がる立ち上がり部分、及び、前記立ち上がり部分の上端から延びて前記第3方向に対して前記第1方向とは反対側に傾斜する傾斜部分を有している、請求項1又は2に記載のインシュレータ。
- 前記周回部は、天面、及び、前記天面において少なくとも前記隔離壁に沿った方向の端に設けられた溝を有している、請求項1~3のいずれか一項に記載のインシュレータ。
- 前記外周部は、円環部、前記円環部の内周端に接続された内壁部、及び、前記円環部において前記ワイヤを前記導入部に導く案内部を有し、
前記案内部は、溝形状であって、前記内壁部に開口した開口を有し、前記開口が前記隔離壁に対向している、請求項1~4のいずれか一項に記載のインシュレータ。 - 前記外周部は、内壁部に沿う延出壁を有し、
前記隔離壁は、前記延出壁よりも第1方向側に位置している、請求項5に記載のインシュレータ。 - 請求項1~6のいずれか一項に記載のインシュレータと、
前記ワイヤと、を備えている、電動機。 - 請求項7に記載の電動機を備えている、応用機器。
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JP2022572990A JP7551782B2 (ja) | 2020-12-28 | 2021-12-15 | インシュレータ、電動機及び応用機器 |
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JP2011254656A (ja) * | 2010-06-03 | 2011-12-15 | Mitsubishi Electric Corp | 固定子および電動機 |
JP2012125057A (ja) * | 2010-12-08 | 2012-06-28 | Mitsubishi Electric Corp | 回転電機の固定子のコイルボビンおよびこのコイルボビンを使用した回転電機の固定子の巻線方法 |
WO2019058643A1 (ja) | 2017-09-20 | 2019-03-28 | パナソニックIpマネジメント株式会社 | インシュレータ及びそれを備えたステータ、モータ |
JP2020028204A (ja) * | 2018-08-17 | 2020-02-20 | Kyb株式会社 | 回転電機、インシュレータ、およびそのアセンブリ方法 |
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JP5163913B2 (ja) * | 2010-08-02 | 2013-03-13 | 本田技研工業株式会社 | アウターロータ型電動機 |
JP6181002B2 (ja) * | 2014-03-20 | 2017-08-16 | 愛三工業株式会社 | ステータ及びブラシレスモータ |
EP3582371A4 (en) * | 2017-02-13 | 2020-12-02 | LG Innotek Co., Ltd. | STATOR AND ENGINE INCLUDING IT |
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JP2011254656A (ja) * | 2010-06-03 | 2011-12-15 | Mitsubishi Electric Corp | 固定子および電動機 |
JP2012125057A (ja) * | 2010-12-08 | 2012-06-28 | Mitsubishi Electric Corp | 回転電機の固定子のコイルボビンおよびこのコイルボビンを使用した回転電機の固定子の巻線方法 |
WO2019058643A1 (ja) | 2017-09-20 | 2019-03-28 | パナソニックIpマネジメント株式会社 | インシュレータ及びそれを備えたステータ、モータ |
JP2020028204A (ja) * | 2018-08-17 | 2020-02-20 | Kyb株式会社 | 回転電機、インシュレータ、およびそのアセンブリ方法 |
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CN116057812A (zh) | 2023-05-02 |
JPWO2022145246A1 (ja) | 2022-07-07 |
US20240063675A1 (en) | 2024-02-22 |
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