WO2017149935A1 - Structure d'enroulement pour stator de machine électrique tournante - Google Patents

Structure d'enroulement pour stator de machine électrique tournante Download PDF

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Publication number
WO2017149935A1
WO2017149935A1 PCT/JP2017/000493 JP2017000493W WO2017149935A1 WO 2017149935 A1 WO2017149935 A1 WO 2017149935A1 JP 2017000493 W JP2017000493 W JP 2017000493W WO 2017149935 A1 WO2017149935 A1 WO 2017149935A1
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Prior art keywords
coil
point
continuous coil
output point
round
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PCT/JP2017/000493
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English (en)
Japanese (ja)
Inventor
敦誉 小柴
貞一郎 千葉
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株式会社小松製作所
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Priority to DE112017000121.8T priority Critical patent/DE112017000121T5/de
Publication of WO2017149935A1 publication Critical patent/WO2017149935A1/fr

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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
    • H02K3/28—Layout of windings or of connections between windings
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K2213/00—Specific aspects, not otherwise provided for and not covered by codes H02K2201/00 - H02K2211/00
    • H02K2213/03—Machines characterised by numerical values, ranges, mathematical expressions or similar information

Definitions

  • the present invention relates to a winding structure of a rotating electric machine stator that can suppress the height of a coil end.
  • a wave winding using a square wire is formed by connecting a plurality of pine needle-shaped segment conductors.
  • a wave shape is formed by joining the tip ends of the segment conductors that are installed adjacent to each other in the circumferential direction. As the number of windings increases, the magnetomotive force can be increased and the current can be reduced within the voltage saturation range.
  • a stator winding is configured by connecting conductors formed in a wave shape at a crossing portion.
  • the crossover part is arrange
  • connection points welding points
  • crossover increases in proportion to the increase in the number of turns.
  • the feeding point of each phase can be connected from the outer peripheral side of the stator, the neutral point needs to be extended and connected from the inner peripheral side of the stator to the outer peripheral side, resulting in a high coil end.
  • the present invention has been made in view of the above, and an object of the present invention is to provide a winding structure of a rotating electrical machine stator capable of suppressing the height of a coil end.
  • a winding structure of a rotating electrical machine stator has a predetermined slot in a stator core in which a plurality of teeth and a plurality of slots are alternately formed in the circumferential direction.
  • a winding structure of a rotating electrical machine stator in which coils are wound at a pitch, and an input point and an output point are formed on the lead side, and two rows of coils are wound in a circumferential direction at a predetermined slot pitch in two rows
  • the first two-continuous continuous coil and the first two-continuous continuous coil have the same structure and are arranged with a predetermined slot pitch shifted with respect to the circumferential direction with respect to the first two-continuous continuous coil.
  • a plurality of two-layer wave winding coils composed of two two-round continuous coils are arranged in the radial direction, and the input points and the output points of the first two-round continuous coils are arranged in the same radial direction, and The input point and the output point of the second two-round continuous coil are arranged in the same radial direction, and the output point and the inner peripheral side of the first two-round continuous coil on the outer peripheral side adjacent in the radial direction are arranged.
  • the input point of the first two-round continuous coil is sequentially connected to the output point of the second two-round continuous coil on the outer peripheral side adjacent in the radial direction and the second two-round continuous coil on the inner peripheral side.
  • An input point is sequentially connected, an output point of the innermost peripheral first continuous coil is connected to an output point of the innermost peripheral second continuous coil, and the outermost first point is connected.
  • the input point of the two-round continuous coil is the current input point of the one-phase coil
  • the input point of the second outermost continuous coil is the current output point of the one-phase coil.
  • the winding structure of the rotating electrical machine stator according to the present invention is the above invention, wherein the first two-round continuous coil and the second two-round continuous coil are pine needle-shaped segments from the lead portion side to the slot.
  • the conductor is inserted, the end of the segment conductor is welded on the side opposite to the lead portion, the output point of the first two-turn continuous coil on the outer peripheral side adjacent in the radial direction, and the first two turns on the inner peripheral side Connection with the input point of the continuous coil, connection between the output point of the second continuous coil on the outer peripheral side adjacent in the radial direction and the input point of the second continuous coil on the inner peripheral side, and
  • the connection point between the output point of the first two-round continuous coil on the inner circumference and the output point of the second two-round continuous coil on the innermost circumference is connected by a pine needle-shaped segment conductor having a slot insertion portion. It is characterized by that.
  • m is an integer of 1 or more
  • N 2m + 2.
  • a pine needle-shaped segment conductor having a slot insertion portion is connected between the output point at the number of turns (N ⁇ (2m ⁇ 1)) and the input point at the number of turns (N ⁇ 2m). It is connected by a pine needle-shaped segment conductor having
  • the first two-round continuous coil and the second two-round continuous coil intersect each other at a predetermined slot pitch in the radial direction. It is characterized by being wound.
  • the three one-phase coils are arranged adjacent to each other in the circumferential direction, and the current input point of each one-phase coil is the feeding point of each phase.
  • the current output point of each one-phase coil becomes a neutral point connection point, and single star connection is performed.
  • the predetermined slot pitch is a value obtained by dividing the number of slots by the number of poles of the rotor.
  • the winding structure of the rotating electrical machine stator according to the present invention is characterized in that, in the above invention, the slot has a semi-closed slot shape.
  • the output point of the first outer peripheral side continuous coil adjacent to the radial direction and the input point of the first peripheral continuous coil on the inner peripheral side are sequentially connected to be adjacent in the radial direction.
  • the output point of the second continuous coil on the outer peripheral side and the input point of the second continuous coil on the inner peripheral side are sequentially connected to output the first continuous coil on the innermost side.
  • Point and the output point of the second innermost continuous coil at the innermost periphery, the input point of the first outermost continuous coil at the outermost periphery is used as the current input point of the coil for one phase
  • the input point of the second two-round continuous coil is used as the current output point of the one-phase coil.
  • the current input point and current output point of the coil for one phase are arranged on the outermost peripheral side of the slot, the height of the coil end on the lead portion side can be suppressed and the coil peripheral length is short.
  • the resistance value of the coil can be suppressed.
  • FIG. 1 is a diagram illustrating a state in which wave windings are wound around a stator core when a rotating electrical machine stator used in a rotating electrical machine such as a permanent magnet type rotating electrical machine is configured.
  • FIG. 2 is a perspective view showing a winding state of the first two-round continuous coil.
  • FIG. 3 is a view of the first two-round continuous coil developed linearly as seen from the lead portion side.
  • FIG. 4 is a perspective view showing a winding state when the first two-round continuous coil is arranged in the outer circumferential direction.
  • FIG. 5 shows a linear development of a two-layer wave winding coil in which a second two-turn continuous coil having the same configuration as that of the first two-turn continuous coil is shifted in the rotational direction by 6 slot pitches.
  • FIG. 6 is a perspective view showing a winding state of a two-layer wave winding coil in which a second two-turn continuous coil having the same configuration as that of the first two-turn continuous coil is shifted by six slot pitches in the rotational direction side. It is.
  • FIG. 7 is a cross-sectional view showing a winding state of the wave winding coil for one phase.
  • FIG. 8 is a diagram showing the connection between the first two-round continuous coils, between the second two-round continuous coils, and between the first two-round continuous coils and the second two-round continuous coils.
  • FIG. 9 is a diagram showing a winding state when the connection shown in FIG. 8 is a pine needle-shaped segment conductor.
  • FIG. 10 is a perspective view of the rotating electrical machine stator in the connected state shown in FIG. 9 as viewed from the lead portion side.
  • FIG. 11 is a perspective view of the rotating electrical machine stator as viewed from the side opposite the lead portion.
  • FIG. 12 is an explanatory diagram for explaining a connected state in the case of an eight-turn configuration using four two-layer wave winding coils.
  • FIG. 13 is an explanatory diagram for explaining a connected state in the case of a four-turn configuration using two two-layer wave winding coils.
  • FIG. 14 is an explanatory diagram for explaining a connected state in the case of a six-turn configuration using three two-layer wave winding coils.
  • FIG. 12 is an explanatory diagram for explaining a connected state in the case of an eight-turn configuration using four two-layer wave winding coils.
  • FIG. 13 is an explanatory diagram for explaining a connected state in the case of a four-turn configuration using two two-layer wave winding coils.
  • FIG. 14
  • FIG. 15 is an explanatory diagram for explaining a connected state in a 10-turn configuration using five two-layer wave winding coils.
  • FIG. 16 is an explanatory diagram for explaining a connection state in a 12-turn configuration using six two-layer wave winding coils.
  • FIG. 17 is an explanatory diagram for explaining a connected state in the case of a 14-turn configuration using seven two-layer wave winding coils.
  • FIG. 18 shows the connection relationship of the pine needle-shaped segment conductors for connecting the two continuous coils in the first two continuous coils and the second two continuous coils, and the first two continuous coils and the second two. It is the figure which generalized the connection relation between the circumference continuous coils.
  • FIG. 19 is a cross-sectional view of the stator core when the slot has a semi-closed slot shape.
  • FIG. 1 is a diagram showing a state in which a wave winding is wound around a stator core when a rotating electrical machine stator used in a rotating electrical machine such as a permanent magnet type rotating electrical machine is configured.
  • a rotating electrical machine stator used in a rotating electrical machine such as a permanent magnet type rotating electrical machine is configured.
  • a plurality of teeth 2 and a plurality of slots 3 are regularly formed in an annular shape on the inner peripheral side, which is the region E side where the rotor is inserted, in the circumferential direction RT. .
  • 48 slots 3 are formed. Note that the number of poles of the rotor (not shown) is eight.
  • the rotating electric machine has a function of an electric motor and / or a generator.
  • the stator core 1 is configured by laminating a plurality of annular electromagnetic steel plates.
  • the winding wound around the stator core 1 is formed into a wave shape using a plurality of segment conductors 10. Both end portions of the pine needle-shaped segment conductor 10 are inserted into the slots 3 at a predetermined slot pitch in the direction of the central axis AX from the lead portion side (feeding portion side) 1a.
  • the portion of the inserted segment conductor 10 that protrudes from the opposite lead side 1b, that is, the portion that protrudes from the slot insertion portion, is bent so as to spread in the circumferential direction RT, and the tip 10a of the segment conductor 10 is adjacent to another adjacent segment conductor. 10 is welded to the tip 10a.
  • a first two-turn continuous coil CA1 which is a wave winding composed of a plurality of segment conductors 10 is formed.
  • winding is a square wire, especially a flat wire.
  • FIG. 2 is a perspective view showing a winding state of the first two-round continuous coil.
  • FIG. 3A is a view of the first two-round continuous coil CA1 developed linearly as viewed from the lead portion side 1a.
  • the tip ends 10a of the segment conductors 21 to 28 are connected in series by welding on the non-lead portion side 1b.
  • Both end portions of the segment conductors 22 to 24 and 26 to 28 are inserted into the slot 3 at a pitch of 6 slots.
  • the segment conductors 22, 26, 23, 27, 24, and 28 are inserted with a shift of one slot pitch.
  • the segment conductors 22 to 24 are arranged with a 6-slot pitch therebetween.
  • segment conductors 26 to 28 are arranged at a 6-slot pitch from each other.
  • the segment conductor 21 is arranged in the connection area EA, and the one inserted into the slot 3 at a 7-slot pitch is separated at the lead portion side 1a, and the segment conductor 21a having the input point a2 which is the separated end, It consists of the segment conductor 21b which has the output point a1 which is an edge part.
  • the segment conductor 25 in the connection area EA has a role of connecting the first coil to the second coil, and both ends thereof are inserted into the slots 3 at a pitch of 5 slots.
  • the segment conductors 25 disposed between the segment conductors 24 and 26 are disposed at a 6-slot pitch with respect to each of the segment conductors 24 and 26.
  • the welded portions T21 to T28 connect the tip ends of adjacent segment conductors on the side opposite to the lead portion 1b by welding.
  • the weld T21 connects the segment conductors 21a and 22 with each other.
  • the weld T22 connects the segment conductors 22 and 23.
  • the welded portion T23 connects the segment conductors 23 and 24 together.
  • the weld T24 connects the segment conductors 24 and 25.
  • the welded portion T25 connects the segment conductors 25 and 26.
  • the weld T26 connects the segment conductors 26 and 27.
  • the weld T27 connects the segment conductors 27 and 28.
  • the weld T28 connects the segment conductors 28 and 21b.
  • the current input from the input point a2 is sequentially, in the clockwise direction CW, segment conductor 21a, weld T21, segment conductor 22, weld T22, segment conductor 23, weld T23, segment conductor 24, weld T24, segment
  • the conductor 25 flows through the first round, and the segment conductor 25, the welded portion T25, the segment conductor 26, the welded portion T26, the segment conductor 27, the welded portion T27, the segment conductor 28, the welded portion T28, It flows through the segment conductor 21b and the second round of wave winding ends and reaches the output point a1.
  • the conductors arranged in the adjacent slots have the same current direction, for example, the conductors arranged at the slot position 6 and the slot position 7.
  • the first two-turn continuous coil CA1 is wound in a zigzag manner in the slot 3 every six slot pitches, and is adjacent to the radially adjacent layer L1 on the inner peripheral side and the layer L2 on the outer peripheral side. It is wound alternately.
  • the layer represents the winding position in the slot 3 and is shown as layers L1, L2,..., L8 sequentially from the inner periphery side to the outer periphery side.
  • each segment conductor is arranged in an arc shape along the circumferential direction in the stator core 1, the first winding and the second winding intersect at the lead portion side 1a and the non-lead portion side 1b. To do.
  • the segment conductor 27 extending from the layer L1 to the lead portion side 1a extends in the circumferential direction, shifts to the position of the layer L2 at a pinna shaped apex portion 27t (see FIG. 2), and further extends in the circumferential direction. Enter layer L2 of the eye slot.
  • the segment conductors 23 arranged with a one-slot pitch deviation extend from the layer L1 to the lead portion side 1a and extend in the circumferential direction, and shift to the position of the layer L2 at the pinna shaped vertex 23t and further extend in the circumferential direction. , Enters layer L2 of the slot of the sixth slot pitch.
  • the segment conductor 23 is disposed under the segment conductor 27 from the layer L1 to the lead portion side 1a until reaching the vertex portion 23t, and enters the layer L2 of the slot of the sixth slot pitch from the vertex portion 23t.
  • the apex portions 27t and 23t have an upwardly convex chevron shape, and a one-slot pitch shift occurs according to the one-slot pitch shift of the segment conductors 27 and 23.
  • the vertex portions 27t and 23t are shift points at which the segment conductors 27 and 23 shift from the layer L1 to the layer L2, but are shifted by one slot pitch. For this reason, the intersection where the upper and lower sides of the segment conductors 27 and 23 are interchanged is performed at the positions of the vertex portions 27t and 23t. By performing this intersection, the height at each coil end can be suppressed without twisting the flat wire.
  • FIG. 4 is a perspective view showing a winding state when the first two-round continuous coils CA2 to CA4 having the same configuration as the first two-round continuous coil CA1 are sequentially arranged in the outer circumferential direction.
  • the first two-turn continuous coil CA2 is alternately wound between the layers L3 and L4.
  • the first two-turn continuous coil CA3 is alternately wound between the layers L5 and L6.
  • the first two-turn continuous coil CA4 is alternately wound between the layers L7 and L8.
  • the input points a2, a4, a6, a8 and the output points a1, a3, a5, a7 of the first two-turn continuous coil CA are gathered in the connection region EA and along the radial direction RCA. Each is arranged linearly.
  • the output point a7 and the input point a6, the output point a5 and the input point a4, and the output point a3 and the input point a2 are connected to reach the output point a1.
  • One wave winding coil is formed. That is, the first two continuous coils CA1 to CA4 are connected in series by the connection in the connection area EA. Further, due to this connection, the conductors arranged in the same slot, for example, the conductors of the layers L1, L3, L5, and L7 at the slot position 7, have the same current direction.
  • the second two-turn continuous coil CB1 having the same configuration as the first two-turn continuous coil CA1 is arranged shifted by 6 slot pitches in the clockwise direction CW side.
  • the conductors arranged in the same slot around which the coil is wound for example, the conductors of the layer L1 and the layer L2 at the slot position 7, need to have the same current direction, the first 2
  • the input point a2 of the continuous loop coil CA1 is a current input point
  • the input point b2 of the second continuous coil CB1 is a current output point
  • the output point b1 is a current input point.
  • the current directions of the coils in the same slot are the same.
  • the input point b2 and the output point b1 of the second two-turn continuous coil CB1 are arranged in a connection region EB shifted by 6 slot pitches from the connection region EA.
  • the second two-round continuous coils CB2 ⁇ CB4 is sequentially arranged in the outer circumferential direction (radial direction RCB). That is, four two-layer wave winding coils are arranged in the outer peripheral direction.
  • the input points b2, b4, b6, b8 and the output points b1, b3, b5, b7 of the second continuous coil CB (CB1 to CB4) are gathered in the connection region EB and along the radial direction RCB. Each is arranged linearly.
  • first two-round continuous coils CA1 to CA4 and second two-round continuous coils CB1 to CB4 eight layers (L1 to L8) are provided in two adjacent slots.
  • the coils are densely arranged by shifting in the circumferential direction RT by 6 slot pitches.
  • the output point a7 and the input point a6, the output point a5 and the input point a4, the output point a3 and the input point a2 are set.
  • the output point b7 and the input point b6, the output point b5 and the input point b4, the output point b3 and the input point b2 are connected, respectively, and the innermost circumference
  • the output point a1 of the first two-turn continuous coil CA1 and the output point b1 of the innermost second turn-around continuous coil CB1 are connected.
  • the conductors arranged in the same slot around which the coil is wound for example, the conductors of the layer L1 and the layer L2 at the slot position 7, have the same current direction.
  • the current input from the input point a8 of the outermost first two-round continuous coil CA4 reaches the output point a1 of the first two-round continuous coil CA1, and the output point a1 and the output point b1 are connected.
  • the second innermost second continuous coil CB1 is folded and output from the input point b8 of the second outermost continuous coil CB4. That is, the first two-turn continuous coils CA1 to CA4 (CA) and the second two-turn continuous coils CB1 to CB4 (CB) form one continuous wave winding coil for one phase.
  • the current input point and the current output point for the wave winding coil for one phase are arranged on the outermost peripheral side.
  • the current input point Uin and the current output point UN are arranged on the outermost periphery of each slot 3.
  • the V-phase one-phase wave winding coil and the W-phase one-phase wave winding coil each have two slots in the circumferential direction.
  • a three-phase coil with a single star connection can be generated by arranging adjacently with a pitch shift. That is, as shown in FIG. 8 (b), the wave winding coil 30 U for one phase of U phase, the wave winding coil 30 V for one phase of V phase, and the wave winding coil 30 W for one phase of W phase are at a neutral point N.
  • Single star connected coils can be generated.
  • current input points Uin, Vin, and Win are U-phase, V-phase, and W-phase feed points, respectively
  • current output points UN, VN, and WN are U-phase, V-phase, and W-phase, respectively.
  • Phase neutral point connection point Since the current input points Uin, Vin, Win and the current output points UN, VN, WN are arranged on the outermost periphery of each slot 3, a three-phase coil is generated simply by connecting the current output points UN, VN, WN. be able to.
  • the output point b3 and the input point b2 the innermost output point a1 and the innermost output point b1, the pine needle shaped segment conductors 41, 42, 43, 51, 52, 53, 60U Are connected.
  • the segment conductor 10 is shifted to the outer peripheral layer by one layer at the apex portion while extending six pitches in the clockwise direction CW
  • the segment conductors 41, 42, 43, 51, 52, 53 Shifts by one layer at the apex while extending seven slots in the clockwise direction CW.
  • the segment conductors 41, 42, 43, 51, 52, and 53 are bent so as to spread in the circumferential direction RT and their tips are welded. Therefore, welding on the lead portion side 1a is not necessary when connecting the first two-turn continuous coils CA1 to CA4 and the second two-turn continuous coils CB1 to CB4. As a result, the height of the coil end on the lead portion side 1a can be suppressed.
  • the current output points UN, VN, and WN that form the neutral point N may be connected by a trifurcated segment conductor.
  • FIG. 10 is a perspective view of the rotating electrical machine stator as viewed from the lead portion side 1a.
  • the folds at the innermost circumference of the first two-round continuous coil CA and the second two-round continuous coil CB in the U phase are pine needle-shaped segments.
  • the conductors 60U are connected.
  • the V-phase and W-phase are connected by pine needle shaped segment conductors 60V and 60W.
  • segment conductors 60U, 60V, 60W connect the conductors at the slot positions separated by 6 slot pitches. Since the segment conductors 60U, 60V, 60W connect the layers L1 to each other, there is no radial shift, and the conductors on both sides protruding from the layer L1 at the coil end 5a are bent in the clockwise direction CW. Thereby, it does not interfere with an adjacent segment conductor.
  • the protruding conductor in the clockwise direction CW is folded back in the counterclockwise direction where the adjacent segment conductor shifts to the outer peripheral side at the apex of the pine needle shape.
  • the coil end 5a on the lead portion side 1a does not require welding, and the current input points Uin, Vin, Win and the current output points UN, VN, WN are on the outermost periphery. Because of the arrangement, the connection of the neutral point N (current output point UN) and the wiring to the power source (current input point Uin) can be performed outside the coil end 5a in the radial direction, and the height of the coil end 5a can be suppressed. Can do.
  • first two-round continuous coil CA and the second two-round continuous coil CB are connected by the shortest segment conductor 60U on the inner circumference side, between the first two-round continuous coils CA1 to CA4, and the second Since the two continuous coils CB1 to CB4 are also connected by the shortest segment conductors 41 to 43 and 51 to 53, the coil circumferential length is shortened, and the resistance value of the coil can be suppressed.
  • a wave winding coil 30U for one U-phase is connected in series with a first two-turn continuous coil CA (CA1 to CA4) and a second two-turn continuous coil CB (CB1 to CB4).
  • the current input point Uin is connected to the input point a8 of the first two-turn continuous coil CA4 arranged in the layer L8.
  • the output point a7 of the first two-turn continuous coil CA4 arranged in the layer L7 and the input point a6 of the first two-turn continuous coil CA3 arranged in the layer L6 are connected by a pine needle-shaped segment conductor 41.
  • the output point a5 of the first two-turn continuous coil CA3 arranged in the layer L5 and the input point a4 of the first two-turn continuous coil CA2 arranged in the layer L4 are connected by a pine needle-shaped segment conductor 42.
  • the output point a3 of the first two-turn continuous coil CA2 arranged in the layer L3 and the input point a2 of the first two-turn continuous coil CA1 arranged in the layer L2 are connected by a pine needle-shaped segment conductor 43.
  • the output point a1 of the first two-turn continuous coil CA1 arranged in the layer L1 and the output point b1 of the second two-turn continuous coil CB1 arranged in the layer L1 are connected by a pine needle-shaped segment conductor 60U.
  • the input point b2 of the second two-round continuous coil CB1 arranged in the layer L2 and the output point b3 of the second two-round continuous coil CB2 arranged in the layer L3 are connected by a pine needle-shaped segment conductor 53.
  • the input point b4 of the second two-round continuous coil CB2 arranged in the layer L5 and the output point b5 of the second two-round continuous coil CB3 arranged in the layer L4 are connected by a pine needle-shaped segment conductor 52.
  • the input point b6 of the second two-round continuous coil CB3 arranged in the layer L6 and the output point b7 of the second two-round continuous coil CB4 arranged in the layer L7 are connected by a pine needle-shaped segment conductor 51.
  • the input point b8 of the second two-turn continuous coil CB4 arranged in the layer L8 is connected to the current output point UN.
  • the U-phase one-phase wave winding coil 30U described above uses the first two-round continuous coils CA1 to CA4 and the second two-round continuous coils CB1 to CB4, which are eight (8-turn) two-round continuous coils.
  • FIG. 18 is a diagram that generalizes the connection relationship of the pine needle-shaped segment conductors for connecting the respective two-round continuous coils in the first two-round continuous coil CA and the second two-round continuous coil CB. is there.
  • two continuous coils wound in a wave winding across two adjacent layers are each N / 2 in the radial direction with respect to the number of turns N (N also means the number of layers and the number of turns).
  • the first two-turn continuous coil CA includes N / 2 first two-turn continuous coils CA1 to CA (N / 2) with respect to the number N of turns.
  • the second two-round continuous coil CB includes N / 2 second two-round continuous coils CB1 to CB (N / 2) with respect to the number N of turns. Further, the first two-turn continuous coil CA and the second two-turn continuous coil CB are arranged with a 6-slot pitch shift.
  • Input points a2, a4,..., A (N-6), a (N-4), a (N-2), and a (N) corresponding to the input point a2 and the like of the first continuous coil CA are , Layers (N-2m), (N-2 (m-1)), ..., (N-6), (N-4), (N-2), (N), and the central axis It arrange
  • input points b2, b4,..., B (N-6), b (N-4), b (N-2), b (corresponding to the input point b2 etc. of the second two-turn continuous coil CB N) are arranged in layers (N-2m), (N-2 (m-1)), ..., (N-6), (N-4), (N-2), (N), and Are arranged on a straight line extending radially from the central axis AX.
  • m is an integer equal to or greater than 1
  • the first continuous coil CA has a layer (N ⁇ ) at the position of the number of turns (N ⁇ (2m ⁇ 1)).
  • the pine needle is between the output point a (N- (2m-1)) of (2m-1)) and the input point a (N-2m) of the layer (N-2m) at the position of the number of turns (N-2m) Connected with segmented conductors.
  • the second continuous coil CB has the output point b (N ⁇ (2m ⁇ 1)) of the layer (N ⁇ (2m ⁇ 1)) at the position of the number of turns (N ⁇ (2m ⁇ 1)).
  • the input point b (N-2m) of the layer (N-2m) which is the position of the number of turns (N-2m) is connected by a pine needle-shaped segment conductor. Then, the output point a (N ⁇ (2m + 1)) of the first two-turn continuous coil CA and the second two-turn continuous coil in the layer (N ⁇ (2m + 1)) at the position of the number of turns (N ⁇ (2m + 1)).
  • the output point b (N ⁇ (2m + 1)) of CB is connected by a pine needle shaped segment conductor.
  • the output point a1 of the first two-turn continuous coil CA and the output point b1 of the second two-turn continuous coil CB are connected on the innermost periphery, and the current input point Uin and the current are connected to the outermost periphery.
  • An output point UN is arranged.
  • the slot 3 has a semi-closed slot shape having a flange extending in the circumferential direction from the tip of the tooth 2.
  • a flange extending in the circumferential direction from the tip of the tooth 2.
  • annular slots 3 are formed, the number of poles of the rotor is 8, and the first two-round continuous coil CA and the second two-round continuous coil CB are arranged at a six-slot pitch.
  • the number of slots is Ns and the number of poles of the rotor is Np
  • the first two-round continuous coil CA and the second two-round continuous coil CB are (Ns / Np) What is necessary is just to shift the slot pitch of minutes.

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  • Windings For Motors And Generators (AREA)

Abstract

Afin de fournir une structure d'enroulement qui est destinée à un stator de machine électrique tournante et qui limite la hauteur des extrémités de bobine, la présente invention est configurée de sorte que : des premières bobines continues à double boucle CA1-CA4 et des secondes bobines continues à double boucle CB1-CB4 sont décalées à six pas d'encoche par rapport à la direction de rotation ; des points de sortie a7, a5, a3 qui sont destinés aux premières bobines continues à double boucle CA côté périphérie externe et qui sont adjacents dans la direction radiale RCA et des points d'entrée a6, a4, a2 qui sont destinés aux premières bobines continues à double boucle CA côté périphérie interne et qui sont adjacents dans ladite direction sont respectivement et séquentiellement connectés ; des points de sortie b7, b5, b3 qui sont destinés aux secondes bobines continues à double boucle CB côté périphérie externe et qui sont adjacents dans la direction radiale RCB et des points d'entrée b6, b4, b2 qui sont destinés aux secondes bobines continues à double boucle CB côté périphérie interne et qui sont adjacents dans ladite direction sont respectivement et séquentiellement connectés ; un point de sortie a1 qui est destiné à la première bobine continue à double boucle CA1 la plus à l'intérieur et un point de sortie b1 qui est destiné à la seconde bobine continue à double boucle CB1 la plus à l'intérieur sont connectés ; un point d'entrée a8 qui est destiné à la première bobine continue à double boucle CA4 la plus à l'extérieur est un point d'entrée de courant pour une bobine de phase unique ; et un point d'entrée b8 qui est destiné à la seconde bobine continue à double boucle CB4 la plus à l'extérieur est un point de sortie de courant pour la bobine de phase unique.
PCT/JP2017/000493 2016-02-29 2017-01-10 Structure d'enroulement pour stator de machine électrique tournante WO2017149935A1 (fr)

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DE112017000121.8T DE112017000121T5 (de) 2016-02-29 2017-01-10 Wicklungsstruktur eines Stators für eine rotierende elektrische Maschine

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JP2016-037991 2016-02-29
JP2016037991A JP6649804B2 (ja) 2016-02-29 2016-02-29 回転電機ステータの巻線構造

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113396528A (zh) * 2019-01-25 2021-09-14 博格华纳公司 带有具有双交叉端部回路的分布式绕组的电机
EP4087096A4 (fr) * 2019-12-31 2023-09-06 SAIC MOTOR Corporation Limited Structure d'enroulement de stator, et moteur la comprenant

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6954374B2 (ja) * 2017-12-14 2021-10-27 株式会社アイシン ステータ
CN110556956B (zh) * 2018-05-31 2021-12-07 比亚迪股份有限公司 定子组件和具有其的电机

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014096858A (ja) * 2012-11-07 2014-05-22 Denso Corp 固定子および回転電機

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014096858A (ja) * 2012-11-07 2014-05-22 Denso Corp 固定子および回転電機

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113396528A (zh) * 2019-01-25 2021-09-14 博格华纳公司 带有具有双交叉端部回路的分布式绕组的电机
EP4087096A4 (fr) * 2019-12-31 2023-09-06 SAIC MOTOR Corporation Limited Structure d'enroulement de stator, et moteur la comprenant

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DE112017000121T5 (de) 2018-06-07
JP6649804B2 (ja) 2020-02-19

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