WO2019064373A1

WO2019064373A1 - Electric motor and method for manufacturing electric motor

Info

Publication number: WO2019064373A1
Application number: PCT/JP2017/034937
Authority: WO
Inventors: 治之長谷川
Original assignee: 三菱電機株式会社
Priority date: 2017-09-27
Filing date: 2017-09-27
Publication date: 2019-04-04

Abstract

A rotary electric machine of the present invention has: a stator provided with a stator core provided with core pieces (30) in multiples of 12 that are laminated structures of electromagnetic plates and that each have a core back (38a) and teeth (31a) that protrude from a first surface of the core back (38a), the stator being provided with magnet wires (34) wound onto the teeth (31a); and a rotor provided with magnets in multiples of 10 or multiples of 14 and disposed so that a gap is opened between the magnets and the teeth (31a). The magnet wires (34) are each provided with a winding wire part (36) that is wound onto each of the teeth (31a) and forms a coil, and a crossover wire part (37) that connects the winding wire parts (36) wound onto different teeth (31a) to each other. All of the crossover wire parts (37) are disposed on the second surface side of the core backs (38a).

Description

Electric motor and method of manufacturing electric motor

The present invention relates to a motor having a slot combination of 10 poles and 12 slots or 14 poles and 12 slots and a method of manufacturing the motor.

Since the winding of the motor requires a wire connection operation, it is possible to reduce the number of wire connection operations by continuously winding a plurality of teeth with one magnet wire and performing a passing process with the magnet wire itself. It has been tried. In this method, it is necessary to wind continuously while securing insulation between windings of each phase. In the case of an 8-pole 9-slot motor, successive winding is generally performed in order to apply in-phase windings to three adjacent teeth.

Patent Document 1 discloses a method of wiring of a crossover of a 14 pole 12 slot series motor. Patent Document 1 discloses a method of implementing winding in an annular shape by devising a winding pattern between in-phase and enabling continuous winding in the same direction in all coils.

Patent No. 4112535 gazette

In the invention disclosed in Patent Document 1 described above, since some of the crossovers exist on the inner circumferential side, it is necessary to perform the work of securing the insulation of each phase separately from the winding work.

The present invention has been made in view of the above, and it is an object of the present invention to obtain a 10-pole 12-slot series or 14-pole 12-slot series electric motor in which insulation of each phase is secured and a crossover is realized by the magnet wire itself. I assume.

In order to solve the problems described above and to achieve the object, the present invention has a core back and teeth protruding from the first surface of the core back, and a core piece which is a laminated structure of a magnetic steel sheet that is a multiple of 12 It has a stator provided with a plurality of stator cores, a magnet wire wound on teeth, and a mover provided with magnets of multiples of 10 or 14 that are spaced apart from the teeth. . The magnet wire includes a winding portion wound around teeth to form a coil, and a crossover portion connecting winding portions wound around different teeth. All crossovers are disposed on the second surface side of the core back.

The motor according to the present invention is a 10 pole 12 slot series or a 14 pole 12 slot series, and has an effect that insulation of each phase can be secured and a bridge wire can be realized by the magnet wire itself.

Sectional view along the rotation axis of the rotary electric machine according to Embodiment 1 of the present invention Sectional view perpendicular to the rotation axis of the rotary electric machine according to the first embodiment A view of a stator core of a rotary electric machine according to Embodiment 1 as viewed from the inner peripheral side Connection diagram of the rotating electrical machine according to the first embodiment The figure which shows the wiring state of the magnet wire of the U phase of the rotary electric machine which concerns on Embodiment 1. The figure which shows the wiring state of the magnet wire of V phase of the rotary electric machine which concerns on Embodiment 1. The figure which shows the wiring state of the magnet wire of W phase of the rotary electric machine which concerns on Embodiment 1. The figure which looked at the stator core of another structure of the rotary electric machine which concerns on Embodiment 1 from the inner peripheral side A view of a stator core of a rotary electric machine according to Embodiment 2 as viewed from the inner peripheral side The figure which shows the wiring state of the magnet wire of the U-phase of the rotary electric machine which concerns on Embodiment 2, and V phase. The figure which shows the state which finished winding the magnet wire on the stator core of the rotary electric machine which concerns on Embodiment 2. Diagram showing work contents of wire connection work of a rotary electric machine according to a second embodiment FIG. 7 is a diagram showing transition of connection state of a rotating electrical machine according to a second embodiment; A view of a stator core of a rotary electric machine according to a third embodiment as viewed from the inner peripheral side Connection diagram of the rotating electrical machine according to the third embodiment The figure which shows the wiring state of the magnet wire of the U phase of the rotary electric machine which concerns on Embodiment 3. The figure which shows the wiring state of the magnet wire of V phase of the rotary electric machine which concerns on Embodiment 3. The figure which shows the wiring state of the magnet wire of W phase of the rotary electric machine which concerns on Embodiment 3. The figure which shows the state which finished winding the magnet wire on the stator core of the rotary electric machine which concerns on Embodiment 3. A diagram showing a wire connection state when the magnet wire is wound around the stator core of the rotary electric machine according to Embodiment 3. Diagram showing work contents of wire connection work of a rotating electrical machine according to a third embodiment A diagram showing a wire connection state after wire connection work of a rotary electric machine according to a third embodiment The figure which shows the state which looked at the stator core of the rotary electric machine which concerns on Embodiment 4 of this invention from the inner peripheral side. Connection diagram of the rotating electrical machine according to the fourth embodiment The figure which shows the wiring state of the magnet wire which straddles U phase and V phase of the rotary electric machine which concerns on Embodiment 4. The figure which shows the wiring state of the magnet wire over the W phase and U phase of the rotary electric machine which concerns on Embodiment 4. A diagram showing a wiring state of magnet wires straddling V-phase and W-phase of a rotary electric machine according to a fourth embodiment The figure which shows the state which wound the magnet wire around the stator core of the rotary electric machine which concerns on Embodiment 4. The figure which shows the state which cut | disconnected a part of magnet wire wound around the stator core of the rotary electric machine which concerns on Embodiment 4. FIG. 17 shows transition of connection state of a stator core of a rotary electric machine according to a fourth embodiment;

Hereinafter, an electric motor and a method of manufacturing the electric motor according to an embodiment of the present invention will be described in detail based on the drawings. The present invention is not limited by the embodiment.

Embodiment 1
FIG. 1 is a cross-sectional view taken along the rotation axis of the rotary electric machine according to Embodiment 1 of the present invention. FIG. 2 is a cross-sectional view perpendicular to the rotation axis of the rotary electric machine according to the first embodiment. The rotary electric machine 1 according to the first embodiment is an electric motor, and includes a mover 2 and a stator 3. The mover 2 includes a shaft 21 and a plurality of

magnets

22 ₁ , 22 ₂ , 22 ₃ , 22 ₄ , 22 ₅ , 22 ₆ , 22 ₇ , 22 ₈ , 22 ₉ , 22 ₁₀ installed around the shaft 21. Have. Hereinafter, the

magnets

22 ₁ , 22 ₂ , 22 ₃ , 22 ₄ , 22 ₅ , 22 ₆ , 22 ₇ , 22 ₈ , 22 ₉ , and 22 ₁₀ will be collectively referred to as the magnet 22. The stator 3 has a frame 31 for accommodating the mover 2 and

brackets

32 and 33 for rotatably supporting the shaft 21.

Bearings

321 and 331 are installed on the

brackets

32 and 33 to reduce the resistance caused by the rotation of the shaft 21. Inside the frame 31, a cylindrical stator core 310 is installed. The magnet 22 of the mover 2 and the stator core 310 of the stator 3 face each other with a gap.

The stator core 310 has a plurality of

core pieces

30 ₁ , 30 ₂ , 30 ₃ , 30 ₄ , 30 ₅ , 30 ₆ , 30 ₇ , 30 ₈ , 30 ₉ , 30 ₁₀ , 30 ₁₁ , 30 ₁₂ . Core pieces ₃₀ _1, 30 _2, ₃₀ _3, 30 _4, ₃₀ _5, 30 _6, 30 _{7, 30 8,} 30 9, _{30 10,} 30 11, _{30 12,} the core back _38a _1, 38a 2, _38a 3, 38a _4, and _{_{_{_{38a 5, 38a 6, 38a 7}}}} , 38a 8, 38a 9, 38a 10, 38a 11, 38a 12, the core back _{_{_{_{38a 1, 38a 2, 38a 3}}}} ,

38a

4,

38a

5, 38a 6,

38a

7 , 38a ₈ , 38a ₉ , 38a ₁₀ , 38a ₁₁ , 38a ₁₂ protruding from the first surface of

teeth

31 a ₁ , 31 a ₂ , 31 a ₃ , 31 a ₄ , 31 a ₅ , 31 a ₆ , 31 a ₇ , 31 a ₈ , 31 a ₉ , 31a ₁₀ , 31a ₁₁ , and 31a ₁₂ . Hereinafter, the

core pieces

30 ₁ , 30 ₂ , 30 ₃ , 30 ₄ , 30 ₅ , 30 ₆ , 30 ₇ , 30 ₈ , 30 ₉ , 30 ₁₀ , 30 ₁₁ , and 30 _{12 are} all referred to as core pieces 30. The

core back

38a ₁ , 38a ₂ , 38a ₃ , 38a ₄ , 38a ₅ , 38a ₆ , 38a ₇ , 38a ₈ , 38a ₉ , 38a ₁₀ , 38a ₁₁ , 38a ₁₂ is referred to as the core back 38a. Also, hereinafter, when referring to the entire tooth _{_{_{_{31a 1, 31a 2, 31a 3}}}} ,

31a

4,

31a

5, 31a 6, 31a 7, 31a 8, 31a 9, 31a 10, 31a 11, 31a 12 is that the teeth 31a.

The core piece 30 is configured by laminating T-shaped electromagnetic steel plates. The stacking direction of the core pieces 30 is a direction orthogonal to the arrangement direction of the teeth 31 a. The stator core 310 is cylindrically disposed such that the first surface of the core back 38 a is on the inner circumferential side and the second surface is on the outer circumferential side. The magnet wire 34 is wound around the teeth 31a. The magnet wire 34 is a copper wire which does not have an insulation coating and has a core wire exposed.

The rotary electric machine 1 has a configuration of 10 poles and 12 slots, and three phase voltages of a first phase, a second phase and a third phase are applied. Hereinafter, the first phase is U phase, the second phase is V phase, and the third phase is W phase.

FIG. 3 is a view of the stator core of the rotary electric machine according to the first embodiment as viewed from the inner peripheral side. In addition, FIG. 3 is illustrated in the state which expand | deployed the cylindrical stator core 310 on the plane. FIG. 4 is a connection diagram of the rotating electrical machine according to the first embodiment. The magnet wire 34 wound around the

teeth

31 a ₁ , 31 a ₂ , 31 a ₇ , 31 a ₈

forms winding portions

36 ₁ , 36 ₂ , 36 ₇ , 36 ₈ . The winding unit ₃₆ _1, 36 _2, 36 7, 36 _8, the U-phase voltage is applied. The magnet wire 34 wound around the

teeth

31 a ₃ , 31 a ₄ , 31 a ₉ , 31 a ₁₀

forms winding portions

36 ₃ , 36 ₄ , 36 ₉ , 36 ₁₀ . A voltage of V phase is applied to the

windings

36 ₃ , 36 ₄ , 36 ₉ , 36 ₁₀ . The magnet wire 34 wound around the

teeth

31 a ₅ , 31 a ₆ , 31 a ₁₁ , 31 a ₁₂

forms winding portions

36 ₅ , 36 ₆ , 36 ₁₁ , 36 ₁₂ . A W-phase voltage is applied to the

windings

36 ₅ , 36 ₆ , 36 ₁₁ and 36 ₁₂ . Hereinafter, the winding

portion

36 ₁ , 36 ₂ , 36 ₃ , 36 ₄ , 36 ₅ , 36 ₆ , 36 ₇ , 36 ₈ , 36 ₉ , 36 ₁₀ , 36 ₁₁ , 36 _{12 is} generally referred to as the winding portion 36. It is said.

The winding unit 36 ₁ and the winding unit 36 ₂ are connected by the core back _38a 1, 38a Dosen portion 37 ₁ which is disposed on the second surface side of the _2. The winding portion 36 ₃ and the winding portion 36 ₄ are connected by the core back _38a 3, 38a Dosen portion 37 ₂ which is disposed on the second surface side of the _4. The winding section 36 ₅ and the winding portion 36 ₆ are connected with the core back _38a 5, 38a Dosen portion 37 ₃ which is disposed on the second surface side of the _6. The winding unit 36 ₇ and the winding section 36 _8, and is connected with the core back _38a 7, 38a Dosen 37 ₄ disposed on the second surface side of the _8. The winding section 36 ₉ and the winding portion _{36 10,} are connected by Dosen 37 ₅ disposed on the second surface side of the core back _38a 9, _{38a 10.} The winding unit _{36 11} and the winding portion _{36 12,} are connected by the core back _38a 11, Dosen 37 ₆ disposed on the second surface side of _{38a 12.} The winding portion 36 ₂ and the winding unit 36 _7, connected by a core back _{_{_{_{38a 2, 38a 3, 38a 4}}}} ,

38a

5, 38a 6, 38a Dosen 37 ₇ disposed on the second surface side of the ₇ It is done. The winding portion 36 ₄ and the winding portion 36 _9, connected with the core back _{_{_{_{38a 4, 38a 5, 38a 6}}}} , 38a 7, 38a 8, 38a Dosen portion 37 ₈ that is disposed on the second surface side of the ₉ It is done. The winding unit 36 ₆ and the winding unit _{36 11,} connected by a core back _{_{_{_{38a 6, 38a 7, 38a 8}}}} , 38a 9, 38a 10, 38a Dosen 37 ₉ disposed on the second surface side of the ₁₁ It is done. Hereinafter, Dosen unit ₃₇ _1, 37 _2, ₃₇ _3, 37 _4, 37 _5, 37 6, 37 _7, 37 8, 37 ₉ when referring to the entire, that Dosen unit 37.

Marked on the U ₂ and U ₃ in FIG. 3, "-", the polarity indicates different from the U ₁ and U _4. Also, “-” described above V ₁ and V ₄ in FIG. 3 indicates that the polarity is different from V ₂ and V ₃ . Also, “-” described above W ₂ and W ₃ in FIG. 3 indicates that the polarity is different from W ₁ and W ₄ . In the other figures, as in FIG. 3, the difference in polarity is indicated by the presence or absence of “−”.

The

core pieces

30 ₁ , 30 ₂ , 30 ₃ , 30 ₄ , 30 ₅ , 30 ₆ , 30 ₇ , 30 ₈ , 30 ₉ , 30 ₁₀ , 30 ₁₁ , 30 ₁₂ are provided at one end in the lamination direction of the magnetic steel sheets, The

insulators

31 b ₁ , 31 b ₂ , 31 b ₃ , 31 b ₄ , 31 b ₅ , 31 b ₆ , 31 b ₇ , 31 b ₈ , 31 b ₉ , 31 b ₁₀ , 31 b ₁₁ , 31 b ₁₂ are mounted. Hereinafter, the insulator _{_{_{_{31b 1, 31b 2, 31b 3}}}} ,

31b

4,

31b

5, 31b 6, 31b 7, 31b 8, 31b 9, 31b 10, 31b 11, 31b 12 when referring to the entire referred insulator 31b. The

insulators

31 b and 31 c insulate the teeth 31 a from the magnet wire 34.

The

core pieces

30 ₁ , 30 ₂ , 30 ₃ , 30 ₄ , 30 ₅ , 30 ₆ , 30 ₇ , 30 ₈ , 30 ₉ , 30 ₁₀ , 30 ₁₁ , and 30 ₁₂ are provided at the other end in the stacking direction of the magnetic steel sheets. The

insulators

31 c ₁ , 31 c ₂ , 31 c ₃ , 31 c ₄ , 31 c ₅ , 31 c ₆ , 31 c ₇ , 31 c ₈ , 31 c ₉ , 31 c ₁₀ , 31 c ₁₁ , 31 c ₁₂ are mounted. Hereinafter, the insulator _{_{_{_{31c 1, 31c 2, 31c 3}}}} ,

31c

4,

31c

5, 31c 6, 31c 7, 31c 8, 31c 9, 31c 10, 31c 11, 31c 12 when referring to the entire referred insulator 31c.

The

insulators

31 b ₁ , 31 b ₂ , 31 b ₃ , 31 b ₄ , 31 b ₅ , 31 b ₆ , 31 b ₇ , 31 b ₈ , 31 b ₉ , 31 b ₁₀ , 31 b ₁₁ , 31 b ₁₂ are notches 311 b 1, which are _first notches. , 311 _{b 2} , 311 _b ₃ , 311 _b ₄ , 311 _b ₅ , 311 b ₆ , 311 b ₇ , 311 b ₈ , 311 b ₉ , 311 b ₁₀ , 311 b ₁₁ , 311 b ₁₂ are formed. In addition, notches that are second notches in the

insulators

31b ₁ , 31b ₂ , 31b ₃ , 31b ₄ , 31b ₅ , 31b ₆ , 31b ₇ , 31b ₈ , 31b ₉ , 31b ₁₀ , 31b ₁₁ , 31b ₁₂ _{_{_{314b 1, 314b 2, 314b 3}}} ,

314b

4,

314b

5, 314b 6, 314b 7, 314b 8, 314b 9, 314b 10, 314b 11, 314b 12 are formed.

Insulator _{_{_{_{31c 1, 31c 2, 31c 3}}}} ,

31c

4,

31c

5, 31c 6, 31c 7, 31c 8, 31c 9, 31c 10, 31c 11, the _{31c 12,} notch 312c is

first notch

₁ _{_{, 312c 2, 312c 3, 312c}} 4,

312c

5, 312c 6, 312c 7, 312c 8, 312c 9, 312c 10, 312c 11, 312c 12 are formed. Moreover, the insulator _{_{_{_{31c 1, 31c 2, 31c 3}}}} ,

31c

4,

31c

5, 31c 6, 31c 7, 31c 8, 31c 9, 31c 10, 31c 11, 31c 12, notch is lacking the second cut _{_{_{313c 1, 313c 2, 313c 3}}} ,

313c

4,

313c

5, 313c 6, 313c 7, 313c 8, 313c 9, 313c 10, 313c 11, 313c 12 are formed.

Hereinafter, when the whole of the

notches

311 _b ₁ , 311 _{b 2} , 311 _b ₃ , 311 _b ₄ , 311 _b ₅ , 311 b ₆ , 311 b ₇ , 311 b ₈ , 311 b ₉ , 311 b ₁₀ , 311 b ₁₁ , 311 b ₁₂ is referred to as a notch 311 b . Further, when the notch _{_{_{314b 1, 314b 2, 314b 3}}} ,

314b

4,

314b

5, 314b 6, 314b 7, 314b 8, 314b 9, 314b 10, 314b 11, 314b 12 refers to whole, that notch 314b . Further, when the notch _{_{_{312c 1, 312c 2, 312c 3}}} ,

312c

4,

312c

5, 312c 6, 312c 7, 312c 8, 312c 9, 312c 10, 312c 11, 312c 12 refers to whole, that notches 312c . Further, when the notch _{_{_{313c 1, 313c 2, 313c 3}}} ,

313c

4,

313c

5, 313c 6, 313c 7, 313c 8, 313c 9, 313c 10, 313c 11, 313c 12 refers to whole, that notches 313c .

The length of the core piece 30 in the stacking direction is longer than the notch 314 b which is the first notch and the notch 314 b which is the second notch. The length of the core piece 30 in the stacking direction is longer than that of the notch 313c, which is the first notch, than the notch 313c, which is the second notch.

Here, the side on which the insulator 31 b is mounted is defined as a wire connection side, and the side on which the insulator 31 c is mounted is defined as a reverse wire connection side.

First, the U-phase magnet wire 34 will be described. FIG. 5 is a diagram showing a wiring state of U-phase magnet wires of the rotary electric machine according to the first embodiment. FIG. 5 shows the stator core 310 viewed from the connection side. The teeth 31a _1, connection-side and wound magnet wire 34 from the side not adjacent to the teeth 31a ₂ is viewed from the inner peripheral side in the counterclockwise winding portion 36 ₁ is formed. Magnet wire 34 which has finished winding teeth 31a ₁ is, passed through the outer peripheral side through the notch 311b ₁ of the insulator 31b _1, it is returned to the inner peripheral side through the notch 311b ₂ of the insulator 31b _2, Dosen 37 ₁ Is formed. Magnet wire 34 is returned to the inner peripheral side, it is wound clockwise when viewed from the inner peripheral side from the side not adjacent to the connection-side and teeth 31a ₁ to the teeth 31a _2, the winding unit 36 ₂ is formed .

Magnet wire 34 which has finished winding teeth 31a ₂ in the counter-wire-connection-side is passed through to the outer peripheral side through the notch 312c ₂ of the insulator 31c _2, it is returned to the inner peripheral side through the notch 313c ₇ of the insulator 31c _7, passes line unit 37 ₇ are formed. Magnet wire 34 is returned to the inner peripheral side, that is wound clockwise when viewed from the inner peripheral side from the side not adjacent to the counter-wire-connection-side and tooth 31a ₈ on the teeth 31a _7, the winding unit 36 ₇ are formed ing. Magnet wire 34 which has finished winding teeth 31a ₇ is passed through the outer peripheral side through the notch 312c ₇ of the insulator 31c _7, it is returned to the inner peripheral side through the notch 312c ₈ of the insulator 31c _8, Dosen 37 ₄ Is formed. Magnet wire 34 is returned to the inner peripheral side, as viewed from the inner peripheral side from the side not adjacent to the counter-wire-connection-side and tooth 31a ₇ on the teeth 31a ₈ wound counterclockwise, not adjacent to the connection-side and tooth 31a ₇ winding portion 36 ₈ is finished up at the side is formed.

Next, the V-phase magnet wire 34 will be described. FIG. 6 is a diagram showing a wiring state of the V-phase magnet wire of the rotary electric machine according to the first embodiment. FIG. 6 shows the stator core 310 viewed from the connection side. The teeth 31a _3, connection-side and wound magnet wire 34 from the side not adjacent to the tooth 31a ₄ is viewed from the inner circumferential side in the counterclockwise winding portion 36 ₃ is formed. Magnet wire 34 which has finished winding teeth 31a ₃ is passed through the outer peripheral side through the notch 311b ₃ of the insulator 31b _3, it is returned to the inner peripheral side through the notch 311b ₄ of the insulator 31b _4, Dosen 37 ₂ Is formed. Magnet wire 34 is returned to the inner peripheral side, it is wound clockwise when viewed from the inner peripheral side from the side not adjacent to the connection-side and the teeth 31a ₃ the tooth 31a _4, the winding unit 36 ₄ is formed .

Magnet wire 34 which has finished winding teeth 31a ₄ in counter-wire-connection-side is passed through to the outer peripheral side through the notch 312c ₄ of the insulator 31c _4, it is returned to the inner peripheral side through the notch 313c ₉ of the insulator 31c _9, passes line portion 37 ₈ is formed. Magnet wire 34 is returned to the inner peripheral side, that is wound clockwise when viewed from the inner peripheral side from the side not adjacent to the counter-wire-connection-side and the tooth 31a ₁₀ the teeth 31a _9, the winding unit 36 ₉ is formed ing. Magnet wire 34 which has finished winding teeth 31a ₉ is passed through the outer peripheral side through the notch 312c ₉ of the insulator 31c _9, it is returned to the inner peripheral side through the notch 312c ₁₀ of the insulator _{31c 10,} Dosen 37 ₅ Is formed. Magnet wire 34 is returned to the inner peripheral side, as viewed from the inner peripheral side from the side not adjacent to the counter-wire-connection-side and tooth 31a ₉ teeth 31a ₁₀ wound counterclockwise, not adjacent to the connection-side and tooth 31a ₉ winding portion 36 ₁₀ is terminated up at the side is formed.

Next, the W-phase magnet wire 34 will be described. FIG. 7 is a diagram showing the wiring state of the W-phase magnet wire of the rotary electric machine according to the first embodiment. FIG. 7 shows the stator core 310 viewed from the connection side. The teeth 31a _5, connection-side and wound magnet wire 34 from the side not adjacent to the teeth 31a ₆ is viewed from the inner circumferential side in the counterclockwise winding part 36 ₅ is formed. Magnet wire 34 which has finished winding teeth 31a ₅ is passed through the outer peripheral side through the notch 311b ₅ of the insulator 31b _5, it is returned to the inner peripheral side through the notch 311b ₆ of the insulator 31b _6, Dosen 37 ₃ Is formed. The magnet wire 34 returned to the inner circumferential side is wound clockwise on the teeth 31 a ₆ as viewed from the inner circumferential side from the wire connection side and the side not adjacent to the teeth 31 a ₅ , thereby forming the winding portion 36 ₆ .

The magnet wire 34, which has finished winding the teeth 31a ₆ on the non-connection side, is passed to the outer peripheral side through the notch 312c ₆ of the insulator 31c ₆ and returned to the inner peripheral side through the notch 313c ₁₁ of the insulator 31c _11. line unit 37 ₉ is formed. The winding portion 36 ₁₁ is formed by the magnet wire 34 returned to the inner circumferential side being wound clockwise on the teeth 31 a ₁₁ as viewed from the inner circumferential side from the non-connection side and the side not adjacent to the teeth 31 a ₁₂ ing. The magnet wire 34 having finished winding the teeth 31a ₁₁ is passed to the outer peripheral side through the notch 312c ₁₁ of the insulator 31c ₁₁ and is returned to the inner peripheral side through the notch 312c ₁₂ of the insulator 31c ₁₂ so that the crossover portion 37 ₆ Is formed. Magnet wire 34 is returned to the inner peripheral side, as viewed from the inner peripheral side from the side not adjacent to the counter-wire-connection-side and tooth 31a ₁₁ the teeth 31a ₁₂ wound counterclockwise, not adjacent to the connection-side and tooth 31a ₁₁ by being wound terminated by side, the winding unit 36 ₁₂ is formed.

Dosen unit

₃₇ _7, 37 8, 37 ₉ is passed from the first notch 312c is long in the stacking direction of the core pieces 30 and magnet wires 34 to the second surface of the core back 38, the core pieces The length in the stacking direction of 30 is a common pattern returned from the second notches 313c having a short length in the stacking direction to the first surface side of the core back 38, so they are parallel without overlapping each other.

A wire in which the magnet wire 34 at the end of U-phase winding, the magnet wire 34 at the start of V-phase winding, and the magnet wire 34 at the end of W-phase winding are disposed on the wire connection side and the outer periphery It is connected at 35 to be a neutral point. The U-phase, the V-phase, and the W-phase have four coils connected in series and form a 1Y connection.

The stator 3 is provided with a crossover portion 37 that connects the winding portions 36 wound around different teeth 31 a on the second surface side of the core back 38. Dosen unit 37 _7, and Dosen 37 ₈ between the teeth 31a ₄ and the teeth 31a ₉ of V-phase, W-phase tooth 31a ₆ and teeth between the teeth 31a ₂ and the teeth 31a ₇ of U-phase Dosen 37 ₉ between the 31a ₁₁ extends in parallel with the counter-wire-connection-side and outer peripheral side, the other Dosen portion 37, not in contact with the winding portion 36 and connection.

In the rotary electric machine 1 according to the first embodiment, the U-phase, V-phase, and W-phase magnet wires 34 are wound around the teeth 31 a by winding the magnet wires 34 in the same winding pattern from the winding start to the winding end. A cross section 37 is formed. Therefore, it is possible to arrange U-phase, V-phase and W-phase winding nozzles, and to carry out three-phase winding and parallel lines in parallel. Further, since the magnet wires 34 do not cross each other on the inner peripheral side, insulation can be ensured even if the operating voltage of the rotary electric machine 1 is a high voltage.

FIG. 8 is a view of a stator core of another configuration of the rotary electric machine according to the first embodiment as viewed from the inner peripheral side. FIG. 8 illustrates the cylindrical stator core 310 in a developed state on a plane. The insulator 31 b and the insulator 31 c have the same shape. By making the insulator 31 b and the insulator 31 c into the same shape, the manufacturing cost of the rotary electric machine 1 can be reduced by sharing parts.

In the rotary electric machine 1 according to the first embodiment, all of the crossovers between the teeth 31a are arranged on the outer peripheral side of the stator core 310, and the windings, the crossovers and the wiring do not intersect, so the withstand voltage is increased. Can. Further, in the rotary electric machine 1 according to the first embodiment, all of the crossovers between the teeth 31a are disposed on the outer peripheral side of the stator core 310, and the windings, the crossovers, and the connections do not intersect. There is no need to perform the work of securing the insulation separately from the winding work. That is, in the rotary electric machine 1 according to the first embodiment, when securing insulation of each phase, the number of man-hours does not increase and the manufacturing cost does not increase.

Second Embodiment
FIG. 9 is a view of a stator core of a rotary electric machine according to a second embodiment as viewed from the inner peripheral side. FIG. 10 is a diagram showing a wiring state of U-phase and V-phase magnet wires of the rotary electric machine according to the second embodiment. FIG. 9 shows the stator core 310 viewed from the connection side. In the rotary electric machine 1 according to the second embodiment, the end of U-phase winding and the start of V-phase winding are connected by the magnet wire 34 that passes through the wire connection side and the outer peripheral side. That is, the U-phase magnet wire 34 and the V-phase magnet wire 34 are connected by one wire.

The procedure for winding the magnet wire 34 around the stator core 310 will be described. Magnet wire 34 are winding start from the teeth 31a ₁ U-phase is wound sequentially teeth _31a _2, _31a _7, _31a ₈ is similar to the rotary electric machine 1 according to the first embodiment. In other words, the winding unit ₃₆ _1, 36 _2, 36 7, 36 ₈ and Dosen unit ₃₇ _1, 37 7, 37 ₄ is similar to the rotary electric machine 1 according to the first embodiment. The magnet wire 34 finished winding the teeth 31a ₈ on the wire connection side is passed to the outer peripheral side through the notch 311b ₈ of the insulator 31b ₈ shown in FIG. 3 and returned to the inner peripheral side through the notch 311b ₃ of the insulator 31b ₃ ing. The magnet wire 34 returned to the inner circumferential side is wound around the

teeth

31 a ₃ , 31 a ₄ , 31 a ₉ , 31 a ₁₀ in order to form a V-phase magnet wire 34. The V-phase magnet wire 34 is the same as the rotary electric machine 1 according to the first embodiment. In other words, the winding unit ₃₆ _3, 36 _4, 36 9, _{36 10} and Dosen unit ₃₇ _2, 37 8, 37 ₅ is similar to the rotary electric machine 1 according to the first embodiment. The magnet wire 34 finished winding the teeth 31a ₁₀ on the wire connection side is passed to the outer peripheral side through the notch 311b ₁₀ of the insulator 31b ₁₀ shown in FIG. 3 and returned to the inner peripheral side through the notch 311b ₅ of the insulator 31b ₅ ing. The magnet wire 34 returned to the inner circumferential side is wound around the

teeth

31 a ₅ , 31 a ₆ , 31 a ₁₁ and 31 a ₁₂ in order to form a W-phase magnet wire 34. The W-phase magnet wire 34 is the same as the rotary electric machine 1 according to the first embodiment. That is, the winding section ₃₆ _5, 36 _6, 36 11, _{36 12} and Dosen portion ₃₇ _3, 37 9, 37 ₆ are the same as the rotary electric machine 1 according to the first embodiment. FIG. 11 is a diagram showing a state in which the magnet wire has been wound around the stator core of the rotary electric machine according to Embodiment 2. At the stage where the magnet wire 34 has been wound around the stator core 310, the U-phase, V-phase and W-phase magnet wires 34 are connected.

FIG. 12 is a diagram showing the work contents of the connection work of the rotary electric machine according to the second embodiment. The star marks in FIG. 12 indicate places where the magnet wires 34 are connected, and crosses indicate places where the magnet wires 34 are cut. After winding the W-phase magnet wire 34, the magnet wire 34 at the U-phase winding end and the magnet wire 34 at the W-phase winding end are connected by the wire 35, and the V-phase winding end The part of the magnet wire 34 is cut. The V-phase side of the magnet wire 34 cut at the end of V-phase winding becomes a V-phase terminal, and the W-phase side becomes a W-phase terminal. FIG. 13 is a diagram showing the transition of the wire connection state of the rotary electric machine according to the second embodiment. Wire connection after connecting magnet wire 34 of U-phase winding end and magnet wire 34 of W-phase winding end with wire 35 and cutting magnet wire 34 of V-phase winding end Is the same as the wire connection state of the rotary electric machine 1 according to the first embodiment shown in FIG. 4 except that the U-phase magnet wire 34 and the V-phase magnet wire 34 are connected by one wire.

The rotary electric machine 1 according to the second embodiment can wind the magnet wire 34 continuously for 12 teeth without dividing it into the U phase, the V phase and the W phase. Further, since the cut portion of the magnet wire 34 between the V phase and the W phase is used for the V phase terminal and the W phase terminal, waste of the magnet wire 34 can be eliminated. Further, in the rotary electric machine 1 according to the second embodiment, all of the crossovers between the teeth 31a are disposed on the outer peripheral side of the stator core 310, and the windings, the crossovers, and the connections do not intersect. There is no need to perform the work of securing the insulation separately from the winding work.

Third Embodiment
FIG. 14 is a view of a stator core of a rotary electric machine according to a third embodiment as viewed from the inner peripheral side. FIG. 15 is a connection diagram of a rotating electrical machine according to a third embodiment. Two U-phase, V-phase, and W-phase coils connected in series are connected in parallel to form a parallel Y-connection. Insulator _{_{_{_{31b 1, 31b 2, 31b 3}}}} ,

31b

4,

31b

5, 31b 6, 31b 7, 31b 8, 31b 9, 31b 10, 31b 11, 31b to _12, the notches _{_{_{314b 1, 314b 2, 314b 3}}} , _{_{_{314b 4, 314b 5, 314b 6}}} , 314b 7, 314b 8, 314b 9, 314b 10, 314b 11, 314b 12 are formed. That is, the insulator _{_{_{_{31b 1, 31b 2, 31b 3}}}} ,

31b

4,

31b

5, 31b 6, 31b 7, 31b 8, 31b 9, 31b 10, 31b 11, 31b 12 , the first notch in which the notches 311b _{_{_{1, 311b 2, 311b 3,}}}

311b

4,

311b

5, 311b 6, 311b 7, 311b 8, 311b 9, 311b 10, 311b 11, and 311b _12, notches 314b ₁ is lacking the second cut, 314b ₂ , 314b ₃ , 314b ₄ , 314b ₅ , 314b ₆ , 314b ₇ , 314b ₈ , 314b ₉ , 314b ₁₀ , 314b ₁₁ , 314b ₁₂ are formed.

First, the U-phase magnet wire 34 will be described. FIG. 16 is a diagram showing a wiring state of U-phase magnet wires of the rotary electric machine according to the third embodiment. FIG. 16 shows the stator core 310 viewed from the wire connection side. The teeth 31a _1, connection-side and wound magnet wire 34 from the side not adjacent to the teeth 31a ₂ is viewed from the inner peripheral side in the counterclockwise winding portion 36 ₁ is formed. Magnet wire 34 which has finished winding teeth 31a ₁ is, passed through the outer peripheral side through the notch 311b ₁ of the insulator 31b _1, it is returned to the inner peripheral side through the notch 311b ₂ of the insulator 31b _2, Dosen 37 ₁ Is formed. Magnet wire 34 is returned to the inner peripheral side, it is wound clockwise when viewed from the inner peripheral side from the side not adjacent to the connection-side and teeth 31a ₁ to the teeth 31a _2, the winding unit 36 ₂ is formed .

Magnet wire 34 which has finished winding teeth 31a ₂ in connection side is passed through to the outer peripheral side through the notch 314b ₂ of the insulator 31b _2, that returned to the inner peripheral side through the notch 314b ₇ of the insulator 31b _7, Dosen part 37 ₇ are formed. Magnet wire 34 is returned to the inner peripheral side, as viewed from the inner peripheral side from the side not adjacent to the connection-side and tooth 31a ₈ the teeth 31a ₇ is wound counterclockwise, the winding section 36 ₇ is formed There is. Magnet wire 34 which has finished winding teeth 31a ₇ is passed through the outer peripheral side through the notch 311b ₇ of the insulator 31b _7, it is returned to the inner peripheral side through the notch 311b ₈ of the insulator 31b _8, Dosen 37 ₄ Is formed. Magnet wire 34 is returned to the inner peripheral side, it is wound clockwise when viewed from the inner peripheral side from the side not adjacent to the connection-side and tooth 31a ₇ on the teeth 31a _8, on the side adjacent to the connection-side and tooth 31a ₇ It had finished winding, winding portion 36 ₈ is formed.

Next, the V-phase magnet wire 34 will be described. FIG. 17 is a diagram showing a wiring state of the V-phase magnet wire of the rotary electric machine according to the third embodiment. FIG. 17 shows the stator core 310 as viewed from the connection side. The teeth 31a _3, connection-side and wound magnet wire 34 from the side not adjacent to the tooth 31a ₄ is viewed from the inner circumferential side in the counterclockwise winding portion 36 ₃ is formed. Magnet wire 34 which has finished winding teeth 31a ₃ is passed through the outer peripheral side through the notch 311b ₃ of the insulator 31b _3, it is returned to the inner peripheral side through the notch 311b ₄ of the insulator 31b _4, Dosen 37 ₂ Is formed. Magnet wire 34 is returned to the inner peripheral side, it is wound clockwise when viewed from the inner peripheral side from the side not adjacent to the connection-side and the teeth 31a ₃ the tooth 31a _4, the winding unit 36 ₄ is formed .

Magnet wire 34 which has finished winding teeth 31a ₄ in connection side is passed through to the outer peripheral side through the notch 314b ₄ of the insulator 31b _4, it is returned to the inner peripheral side through the notch 314b ₉ of the insulator 31b _9, Dosen part 37 ₈ are formed. Magnet wire 34 is returned to the inner peripheral side, the teeth 31a ₉ from the side not adjacent to the connection-side and tooth 31a ₁₀ is wound counterclockwise as viewed from the inner circumferential side, the winding unit 36 ₉ is formed ing. Magnet wire 34 which has finished winding teeth 31a ₉ is passed through the outer peripheral side through the notch 311b ₉ of the insulator 31b _9, it is returned to the inner peripheral side through the notch 311b ₁₀ of the insulator _{31b 10,} Dosen 37 ₅ Is formed. Magnet wire 34 is returned to the inner peripheral side, it is wound clockwise when viewed from the inner peripheral side from the side not adjacent to the connection-side and tooth 31a ₉ teeth 31a _10, on the side adjacent to the connection-side and tooth 31a ₉ It had finished winding, winding unit 36 ₁₀ is formed.

Next, the W-phase magnet wire 34 will be described. FIG. 18 is a diagram showing the wiring state of the W-phase magnet wire of the rotary electric machine according to the third embodiment. FIG. 18 shows the stator core 310 viewed from the connection side. The teeth 31a _5, connection-side and wound magnet wire 34 from the side not adjacent to the teeth 31a ₆ is viewed from the inner peripheral side counterclockwise, the winding unit 36 ₅ is formed. Magnet wire 34 which has finished winding teeth 31a ₅ is passed through the outer peripheral side through the notch 311b ₅ of the insulator 31b _5, it is returned to the inner peripheral side through the notch 311b ₆ of the insulator 31b _6, Dosen 37 ₃ Is formed. The magnet wire 34 returned to the inner circumferential side is wound clockwise on the teeth 31 a ₆ as viewed from the inner circumferential side from the wire connection side and the side not adjacent to the teeth 31 a ₅ , thereby forming the winding portion 36 ₆ .

The magnet wire 34, which has finished winding the teeth 31a ₆ on the wire connection side, is passed to the outer peripheral side through the notch 314b ₆ of the insulator 31b ₆ , and is returned to the inner peripheral side through the notch 314b ₁₁ of the insulator 31b _11. part 37 ₉ are formed. The magnet wire 34 returned to the inner circumferential side is wound around the teeth 31a ₁₁ counterclockwise as viewed from the inner circumferential side from the connection side and the side not adjacent to the teeth 31a ₁₂ , and the winding portion 36 ₁₁ is formed There is. Magnet wire 34 which has finished winding teeth _{31a 11} is passed through the outer peripheral side through the notch 311b ₁₁ of the insulator _{31b 11,} it is returned to the inner peripheral side through the notch 311b ₁₂ of the insulator _{31b 12,} Dosen 37 ₆ Is formed. Magnet wire 34 is returned to the inner peripheral side, it is wound clockwise when viewed from the inner peripheral side from the side not adjacent to the connection-side and tooth 31a ₁₁ the teeth 31a _12, on the side adjacent to the connection-side and tooth 31a ₁₁ It had finished winding, winding unit 36 ₁₂ is formed.

And winding start portion of the V-phase, and Dosen portion 37 ₂ of the U-phase, are connected by a connection-side and outer peripheral side. Further, a portion of the winding end of the V-phase, and Dosen portion 37 ₆ of the W-phase, are connected by a connection-side and outer peripheral side. Further, the Dosen portion 37 ₆ of Dosen portion 37 ₂ and the W-phase of the U phase, are connected by a connection-side and outer peripheral side. Further, the Dosen portion 37 ₄ of the V phase terminal is installed.

A procedure for winding the magnet wire 34 around the stator core 310 of the rotary electric machine 1 according to the third embodiment will be described. FIG. 19 is a diagram showing a state in which the magnet wire has been wound around the stator core of the rotary electric machine according to Embodiment 3. As shown in FIG. 19, U-phase, V-phase and W-phase magnet wires 34 are wound around the teeth 31a. FIG. 20 is a diagram showing a wire connection state when the magnet wire has been wound around the stator core of the rotary electric machine according to the third embodiment. When the magnet wire 34 has been wound, the U-phase, V-phase and W-phase magnet wires 34 are not connected.

FIG. 21 is a diagram showing the work contents of the wire connection work of the rotary electric machine according to the third embodiment. The star in FIG. 21 indicates a place where the magnet wire 34 is connected. As shown in FIG. 21, the winding start portion of the V-phase, and Dosen 37 ₇ of the U phase, it is connected by wire-connection-side and outer peripheral side. Further, a portion of the winding end of the V phase, and a Dosen 37 ₉ of the W phase, are connected by wire-connection-side and outer peripheral side. Further, a Dosen 37 ₉ of Dosen 37 ₇ and W-phase of the U phase, it is connected by wire-connection-side and outer peripheral side. Further, the Dosen portion 37 ₈ of the V-phase, placing the terminal. FIG. 22 is a diagram showing a wire connection state after wire connection work of the rotary electric machine according to the third embodiment. V-phase winding start of winding end of V-phase, Dosen 37 ₉ of Dosen 37 ₇ and W-phase of the U-phase, since the neutral point, connection state shown in FIG. 22, FIG. 15 It is the same as the connection condition.

In the rotary electric machine 1 according to the third embodiment, the U-phase, V-phase, and W-phase magnet wires 34 are wound around the teeth 31 a by winding the magnet wires 34 in the same winding pattern from the winding start to the winding end. Is being done. Therefore, the winding nozzles for U phase, V phase and W phase can be arranged side by side, and the winding of three phases can be performed in parallel. Further, since the magnet wires 34 do not cross each other on the inner peripheral side, insulation can be ensured even if the operating voltage of the rotary electric machine 1 is a high voltage. That is, the rotary electric machine 1 according to the third embodiment does not have to perform the work of securing the insulation of each phase separately from the winding work.

Fourth Embodiment
FIG. 23 is a view showing the stator core of the rotary electric machine according to Embodiment 4 of the present invention as viewed from the inner peripheral side. FIG. 24 is a connection diagram of a rotating electrical machine according to a fourth embodiment. In the rotary electric machine according to the fourth embodiment, neutral points of 1Y connection by coils connected in series are connected to each other in U-phase, V-phase and W-phase, and 2Y connection is made.

FIG. 25 is a diagram showing a wiring state of magnet wires straddling the U phase and the V phase of the rotary electric machine according to the fourth embodiment. FIG. 25 shows the stator core 310 as viewed from the connection side. The teeth 31a _1, connection-side and wound magnet wire 34 from the side not adjacent to the teeth 31a ₂ is viewed from the inner peripheral side in the counterclockwise winding portion 36 ₁ is formed. Magnet wire 34 which has finished winding teeth 31a ₁ is, passed through the outer peripheral side through the notch 311b ₁ of the insulator 31b _1, it is returned to the inner peripheral side through the notch 311b ₂ of the insulator 31b _2, Dosen 39 ₁ Is formed. Magnet wire 34 is returned to the inner peripheral side, it is wound clockwise when viewed from the inner peripheral side from the side not adjacent to the connection-side and teeth 31a ₁ to the teeth 31a _2, the winding unit 36 ₂ is formed . Magnet wire 34 which has finished winding teeth 31a ₂ in connection side is passed through to the outer peripheral side through the notch 314b ₂ of the insulator 31b _2, that returned to the inner peripheral side through the notch 314b ₃ of the insulator 31b _3, Dosen part 39 ₂ is formed. Magnet wire 34 is returned to the inner peripheral side, as viewed from the inner peripheral side from the side not adjacent to the connection-side and tooth 31a ₄ teeth 31a ₃ is wound counterclockwise, the winding portion 36 ₃ is formed There is. Magnet wire 34 which has finished winding teeth 31a ₃ is passed through the outer peripheral side through the notch 311b ₃ of the insulator 31b _3, it is returned to the inner peripheral side through the notch 311b ₄ of the insulator 31b _4, Dosen 39 ₃ Is formed. Magnet wire 34 is returned to the inner peripheral side, it is wound clockwise when viewed from the inner peripheral side from the side not adjacent to the connection-side and the teeth 31a ₃ the tooth 31a _4, on the side adjacent to the connection-side and tooth 31a ₃ It had finished winding, winding unit 36 ₄ is formed.

FIG. 26 is a diagram showing a wiring state of magnet wires straddling W phase and U phase of the rotary electric machine according to the fourth embodiment. FIG. 26 shows the stator core 310 as viewed from the connection side. The teeth 31a _5, connection-side and wound magnet wire 34 from the side not adjacent to the teeth 31a ₆ is viewed from the inner circumferential side in the counterclockwise winding part 36 ₅ is formed. Magnet wire 34 which has finished winding teeth 31a ₅ is passed through the outer peripheral side through the notch 311b ₅ of the insulator 31b _5, it is returned to the inner peripheral side through the notch 311b ₆ of the insulator 31b _6, Dosen 39 ₅ Is formed. Magnet wire 34 is returned to the inner peripheral side, as viewed from the inner peripheral side from the side not adjacent to the connection-side and tooth 31a ₅ teeth 31a ₆ by being wound clockwise, the winding unit 36 ₆ is formed There is. Magnet wire 34 which has finished winding teeth 31a ₆ In connection side is passed through to the outer peripheral side through the notch 314b ₆ of the insulator 31b _6, it is returned to the inner peripheral side through the notch 314b ₇ of the insulator 31b _7, Dosen part 39 ₆ are formed. Magnet wire 34 is returned to the inner peripheral side, as viewed from the inner peripheral side from the side not adjacent to the connection-side and tooth 31a ₈ the teeth 31a ₇ is wound counterclockwise, the winding section 36 ₇ is formed There is. Magnet wire 34 which has finished winding teeth 31a ₇ is passed through the outer peripheral side through the notch 311b ₇ of the insulator 31b _7, it is returned to the inner peripheral side through the notch 311b ₈ of the insulator 31b _8, Dosen 39 ₇ Is formed. Magnet wire 34 is returned to the inner circumference side is wound clockwise when viewed from the inner peripheral side from the side not adjacent to the connection-side and tooth 31a ₇ on the teeth 31a _8, on the side adjacent to the connection-side and tooth 31a ₇ It had finished winding, winding portion 36 ₈ is formed.

FIG. 27 is a diagram showing a wiring state of magnet wires straddling V-phase and W-phase of the rotary electric machine according to the fourth embodiment. FIG. 27 shows the stator core 310 as viewed from the connection side. The teeth 31a _9, connection-side and teeth 31a magnet wire 34 from the side not adjacent to the ₁₀ is viewed from the inner circumferential side wound in a counter clockwise winding unit 36 ₉ is formed. Magnet wire 34 which has finished winding teeth 31a ₉ is passed through the outer peripheral side through the notch 311b ₉ of the insulator 31b _9, it is returned to the inner peripheral side through the notch 311b ₁₀ of the insulator _{31b 10,} Dosen 39 ₉ Is formed. The magnet wire 34 returned to the inner circumferential side is wound clockwise on the teeth 31 a ₁₀ as viewed from the inner circumferential side from the wire connection side and the side not adjacent to the teeth 31 a ₉ to form a winding portion 36 ₁₀ . The magnet wire 34, which has finished winding the teeth 31a ₁₀ on the wire connection side, is passed to the outer peripheral side through the notch 314b ₁₀ of the insulator 31b ₁₀ , and is returned to the inner peripheral side through the notch 314b ₁₁ of the insulator 31b _11. part _{39 10} are formed. The magnet wire 34 returned to the inner circumferential side is wound around the teeth 31a ₁₁ counterclockwise as viewed from the inner circumferential side from the connection side and the side not adjacent to the teeth 31a ₁₂ , and the winding portion 36 ₁₁ is formed There is. Magnet wire 34 which has finished winding teeth _{31a 11} is passed through the outer peripheral side through the notch 311b ₁₁ of the insulator _{31b 11,} it is returned to the inner peripheral side through the notch 311b ₁₂ of the insulator _{31b 12,} Dosen _{39 11} Is formed. Magnet wire 34 is returned to the inner peripheral side, it is wound clockwise when viewed from the inner peripheral side from the side not adjacent to the connection-side and tooth 31a ₁₁ the teeth 31a _12, on the side adjacent to the connection-side and tooth 31a ₁₁ It had finished winding, winding unit 36 ₁₂ is formed.

The magnet wire 34 of the winding start portion of the teeth 31a _3, a winding magnet wire 34 of the first part of the tooth 31a _8, the magnet wire 34 of the winding start portion of the teeth _{31a 11,} are connected.

A procedure for winding the magnet wire 34 around the stator core of the rotary electric machine 1 according to the fourth embodiment will be described. FIG. 28 is a diagram showing a state in which magnet wires are wound around a stator core of a rotary electric machine according to a fourth embodiment. The teeth 31a _1, to form a winding portion 36 ₁ wound watches magnet wire 34 from the inner peripheral side from the side not adjacent to the connection-side and tooth 31a ₂ counterclockwise. The magnet wire 34 which has finished winding teeth 31a _1, turning on the outer peripheral side through the notch 311b ₁ of the insulator 31b _1, back to the inner peripheral side through the notch 311b ₂ of the insulator 31b _2, to form the Dosen unit 39 _1. The magnet wire 34 returning to the inner circumferential side to form a winding portion 36 ₂ wound clockwise when viewed from the inner peripheral side from the side not adjacent to the connection-side and teeth 31a ₁ to the teeth 31a _2. The magnet wire 34 which has finished winding teeth 31a ₂ in connection side, turning to the outer peripheral side through the notch 314b ₂ of the insulator 31b _2, back to the inner peripheral side through the notch 314b ₃ of the insulator 31b _3, the Dosen portion 39 ₂ Form. By repeating the above same procedure, from the teeth 31a ₁ to the teeth _{31a 12,} magnet wire 34 is wound continuously. When the magnet wire 34 has been wound up to the teeth 31a _{12, the} state shown in FIG. 28 is obtained. In the state shown in FIG. 28, magnet wire 34 which has finished winding teeth 31a ₄ in connection side is passed through to the outer peripheral side through the notch 314b ₄ of the insulator 31b _4, the inner peripheral side through the notch 314b ₅ of the insulator 31b ₅ by back, Dosen portion 39 ₄ are formed. In addition, the magnet wire 34, which has finished winding the teeth 31a ₈ on the wire connection side, is passed to the outer peripheral side through the notch 314b ₈ of the insulator 31b ₈ and is returned to the inner peripheral side through the notch 314b ₉ of the insulator 31b ₉ , Dosen portion 39 ₈ is formed.

After winding the magnet wire 34 to the teeth 31a ₁₂ , the magnet wire 34 is cut at the winding start portion of the teeth 31a ₅ . Further, the magnet wire 34 is cut at the winding start portion of the teeth 31a ₉ . FIG. 29 is a diagram showing a state in which a part of the magnet wire wound around the stator core of the rotary electric machine according to Embodiment 4 is cut. The asterisks in FIG. 29 indicate places where the magnet wires 34 are connected, and crosses indicate places where the magnet wires 34 are cut. Furthermore, connected to the magnet wire 34 of the winding start portion of the teeth 31a _3, a magnet wire 34 of the winding start portion of the tooth 31a _8, a magnet wire 34 of the winding start portion of the teeth _{31a 11.}

FIG. 30 is a diagram showing the transition of the connection state of the stator core of the rotary electric machine according to the fourth embodiment. The magnet wire 34 is cut at the winding start portion of the teeth 31 a ₅ , and the magnet wire 34 at the winding start portion of the teeth 31 a ₃ , the magnet wire 34 at the winding start portion of the teeth 31 a ₈ , and the teeth 31 a ₁₁ The wire connection state after connecting the magnet wire 34 at the winding start part is the same as the wire connection state shown in FIG.

The rotary electric machine 1 according to the fourth embodiment, all Dosen unit ₃₉ _1, 39 _2, ₃₉ _3, 39 _5, ₃₉ 6, 39 _{7, 39 9,} 39 10, _{39 11} to the outer peripheral side of the core back 38a Since the magnet wires 34 are arranged so that the magnet wires 34 do not cross each other on the inner peripheral side of the core back 38 a, insulation can be ensured even if the operating voltage is high. That is, the rotary electric machine 1 according to the fourth embodiment does not have to perform the work of securing the insulation of each phase separately from the winding work.

In the first to fourth embodiments, the stator core of the rotary electric machine that performs rotational movement has been described, but the present invention can also be applied to the stator core of a linear motor that performs linear movement.

The configuration shown in the above embodiment shows an example of the contents of the present invention, and can be combined with another known technique, and one of the configurations is possible within the scope of the present invention. Parts can be omitted or changed.

1 rotary electric machine, 2 mover, 3 stator 21 _shaft, 22 _1, ₂₂ _2, 22 _3, ₂₂ _4, 22 5, 22 _6, 22 7, 22 _8, 22 9, _{22 10} magnet, 30, 30 _1, ₃₀ _2, 30 _3, ₃₀ _4, 30 _5, ₃₀ _6, 30 _{7, 30 8,} 30 9, _{30 10,} 30 11, _{30 12} core pieces, 31 _frame, 31a, 31a _1, 31a 2, 31a _{_{_{_{3, 31a 4, 31a 5,}}}} 31a 6, 31a 7, 31a 8, 31a 9, 31a 10, 31a 11, 31a 12 _{_{_{_{teeth, 31b, 31b 1, 31b 2}}}} , 31b 3, 31b 4, 31b 5, 31b 6, _{_{_{_{31b 7, 31b 8, 31b 9}}}} , 31b 10, 31b 11, 31b 12, 31c, 31c 1, 31c 2, 31c 3, 31c 4, 31c 5 _{_{_{_{, 31c 6, 31c 7, 31c}}}} 8, 31c 9, 31c 10, 31c 11, 31c 12 insulator, 32, 33 bracket, 34 magnet wire, 35 _wires, 36 _1, ₃₆ 2, 36 _3, 36 4, 36 _5, ₃₆ _6, 36 _7, ₃₆ _8, 36 9, _{36 10,} 36 11, _{36 12} winding _part, 37, 37 _1, ₃₇ _2, 37 _3, 37 _4, 37 5, 37 _6, 37 7, 37 _8, ₃₇ _9, 39 _1, ₃₉ _2, 39 _3, ₃₉ _4, 39 _5, 39 6, ₃₉ 7, 39 _{8, 39 9,} 39 10, _{39 11} Dosen _portion, 38a, 38a _1, 38a 2, 38a _{_{_{_{3, 38a 4, 38a 5,}}}} 38a 6, 38a 7, 38a 8, 38a 9, 38a 10, 38a 11, 38a 12 core back, 310 stator core _{_{_{, 311b, 311b 1, 311b 2}}} , 311b 3, 311b 4, 311b 5, 311b 6, 311b 7, 311b 8, 311b 9, 311b 10, 311b 11, 311b 12, 312c, 312c 1, 312c 2, 312c 3, _{_{_{312c 4, 312c 5, 312c 6}}} , 312c 7, 312c 8, 312c 9, 312c 10, 312c 11, 312c 12, 313c, 313c 1, 313c 2, 313c 3, 313c 4, 313c 5, 313c 6, 313c 7, _{_{_{313c 8, 313c 9, 313c 10}}} , 313c 11, 313c 12, 314b 1, 314b 2, 314b 3, 314b 4, 314b 5, 314b 6, 314b 7, 314b 8, 314b 9, 314b 10, 14b _11, 314b ₁₂ notch.

Claims

A stator core having a core back and teeth protruding from the first surface of the core back, and having a core piece of a laminated structure of electromagnetic steel sheets and having a multiple of 12; and a magnet wire wound around the teeth With the stator provided,
A mover provided with magnets of multiples of 10 or 14 and spaced apart from the teeth;
The magnet wire includes a winding portion wound around the teeth to form a coil, and a crossover portion connecting the winding portions wound around the different teeth.
A motor according to any one of the preceding claims, wherein all of the crossover sections are disposed on the second surface side of the core back.
The core back includes a pair of insulators mounted on one end and the other end of the core piece in the stacking direction of the electromagnetic steel plates to insulate the core piece and the magnet wire.
A notch is formed in at least one of the pair of insulators,
The motor according to claim 1, wherein the crossover portion is routed to the second surface side of the core back through the notch.
The voltage applied to the winding part is three phases of a first phase, a second phase and a third phase,
The winding portion to which the first phase voltage is applied, the winding portion to which the second phase voltage is applied, and the winding portion to which the third phase voltage is applied are: The motor according to claim 2, wherein a winding pattern on the teeth is the same.
One of the winding portion to which the first phase voltage is applied, the winding portion to which the second phase voltage is applied, and the winding portion to which the third phase voltage is applied. The motor according to claim 3, wherein two are connected at the crossover portion.
1Y connection of the winding portion to which the voltage of the first phase is applied, the winding portion to which the voltage of the second phase is applied, and the winding portion to which the voltage of the third phase is applied The electric motor according to claim 3 or 4, characterized in that:
The winding portion to which the first phase voltage is applied, the winding portion to which the second phase voltage is applied, and the winding portion to which the third phase voltage is applied are parallel Y. The electric motor according to claim 3 or 4, wherein the electric wire is connected.
The winding section to which the voltage of the first phase is applied, the winding section to which the voltage of the second phase is applied, and the winding section to which the voltage of the third phase is applied are 2Y connection The electric motor according to claim 3 or 4, characterized in that:
The notch includes a first notch and a second notch in which the first notch has a different length in the stacking direction of the core pieces,
The crossover section is a first cutting of the insulator mounted on the core piece including the teeth on which the winding section of one of the winding sections to which the crossover section is connected is wound. The present invention is characterized in that the core back side is disposed between the notch and the second notch of the insulator mounted on the core piece provided with the teeth on which the other winding portion is wound. The motor according to any one of claims 2 to 7, wherein
The electric motor according to any one of claims 2 to 8, wherein the pair of insulators have the same shape.
A stator core having a core back and teeth projecting from the first surface of the core back and having a core piece of a laminated structure of electromagnetic steel sheets and having a multiple of 12; a magnet wire wound around the teeth; A stator provided with a pair of insulators mounted on one end and the other end of the core piece in the stacking direction of the magnetic steel sheets to insulate the core piece and the magnet wire; A mover including a magnet having a multiple of 10 or a multiple of 14 disposed, the magnet wire being wound around the teeth to form a coil, and the second of the core back And a wire connecting portion disposed on the face side and connecting the winding portions wound around the different teeth, and at least one of the pair of insulators is formed with a notch; Voltage applied first phase, a manufacturing method of an electric motor is a three-phase of the second phase and third phase, the
Winding the magnet wire around the teeth to form the winding portion;
The magnet wire having the teeth finished wound is passed through the notch to the core back side, and the magnet wire is passed through the notch of the insulator attached to the tooth where the magnet wire is not wound. Returning to the tooth side and repeating the steps of forming the cross section,
A method of manufacturing an electric motor, comprising forming the stator.
The winding portion to which the first phase voltage is applied, the winding portion to which the second phase voltage is applied, and the winding portion to which the third phase voltage is applied are arranged in parallel. And the winding portion to which the first phase voltage is applied, the winding portion to which the second phase voltage is applied, and the winding to which the third phase voltage is applied. The method according to claim 10, wherein the wire portion is connected to form a neutral point.
The winding portion to which the first phase voltage is applied, the winding portion to which the second phase voltage is applied, and the winding portion to which the third phase voltage is applied are continuous. Wrapped around the teeth,
Cutting the transverse wire portion between the winding portion to which the second phase voltage is applied and the winding portion to which the third phase voltage is applied;
A winding end portion of the winding portion to which the voltage of the first phase is applied includes a winding portion to which the voltage of the first phase is applied and a winding portion to which the voltage of the second phase is applied. The method for manufacturing an electric motor according to claim 10, characterized in that it is connected to the cross wire portion between them.
The winding portion to which the first phase voltage is applied, the winding portion to which the second phase voltage is applied, and the winding portion to which the third phase voltage is applied are continuous. Repeat winding the teeth twice,
The crossover portion between the first winding portion to which the second phase voltage is applied and the first winding portion to which the third phase voltage is applied, and the first phase Cutting the cross section between the second winding part to which a voltage is applied and the second winding part to which a second phase voltage is applied;
At the end of the first winding of the winding portion to which the third phase voltage is applied, the voltage of the first winding portion and the second phase to which the first phase voltage is applied is applied Connect to the crossover part between the first winding part and the winding part,
The winding start of the first winding part to which the voltage of the first phase is applied is applied to the second winding part to which the voltage of the second phase is applied and the voltage of the third phase is applied The method according to claim 10, further comprising: connecting to the cross wire portion between the second winding portion and the winding portion.