JP2011035947A - Stator for motor, motor, air conditioner and pump - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a stator for a single Y-connected motor of 12-slot 10-pole in which a coil can be readily formed on a strip-like stator core, having an insulated edge formed thereon and a different phase jumper wire is prevented from contacting. <P>SOLUTION: In the stator for a single Y-connected motor of 12-slot 10-pole, all jumper wires are disposed on one end surface side of the stator; the jumper wires are disposed on stages per phase in the outer circumferential side of an outer wall of an insulating portion; a first phase coil disposed on the lowermost stage and a second phase coil disposed on a second phase are folded and wound without being cut via a neutral point terminal; the first wound tooth is made to be a fifth tooth from one end; a magnet wire is wound counterclockwise when viewed from the front end of the tooth; a neutral point terminal as a second phase folding is disposed on a third tooth form the other end; and a substrate shape can be made to be in common with a 12-slot 8-pole motor. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a stator, an electric motor, an air conditioner, and a pump of an electric motor in which an insulating portion is formed on a stator iron core that is punched and laminated in a belt shape and is bent and wound in a direction opposite to a predetermined direction.

  Teeth are arranged in parallel in order to improve productivity and quality by carrying out all terminal processing and crossover processing of the stator coil of the motor in which adjacent coils are out of phase in the connection side insulation. Insulation is applied to the stator core that is cored and punched out with a thin core back, and a coil is formed by winding a magnet wire around the insulation provided on the teeth. In the stator of the motor in which the coils of the coil are formed, the connecting wire between the coils is the insulating part on the outer periphery side of the stator core where the terminals are provided, and the connection side insulating part that is the insulating part on the axially outer side from the end face of the stator core The height of the inlet and outlet to the outer periphery of the connection-side insulating portion of the connecting wire of each phase is almost the same, and the connecting wires of each phase are arranged in the axial direction without contact. A stator has been proposed. In addition, the stator of the same motor is wound by bending a motor stator core formed by punching in a strip shape in a direction opposite to a predetermined direction (see, for example, Patent Document 1).

JP 2004-96838 A

  However, like the stator of the electric motor of Patent Document 1 above, the stator of the electric motor that forms an insulating portion on the stator core that is punched and laminated in a strip shape, and bends and winds in a direction opposite to a predetermined direction, There is a problem that the winding process takes time, the processing cost is high, the amount of terminals used is large, and the component cost is high.

  Further, since the neutral point terminal is manufactured by punching a copper plate, there is a problem that the cost is high due to material loss.

  The present invention has been made to solve the above-described problems, and can simplify the processing and reduce the processing cost, reduce the component cost, reduce the price of the neutral point terminal, and reduce the 12 slots. For a stator of a 10-pole single Y-connected motor, a coil can be easily formed on a band-shaped stator core having an insulating portion formed thereon, and crossover wires of different phases can be prevented from contacting each other. An electric motor stator, an electric motor, an air conditioner, and a pump are provided.

The stator of the electric motor according to the present invention includes a stator iron core having twelve teeth obtained by punching and laminating electromagnetic steel sheets into a strip shape, an insulating portion applied to the teeth of the stator iron core, and the insulating portion. A stator of a 12-slot 10-pole motor having a three-phase single Y-connection winding directly applied to the teeth by a concentrated winding method,
All the connecting wires of the windings are arranged on the connection side of the insulating portion, and the connecting wires are arranged in the first stage closest to the axial end surface of the stator core, and in the second stage The winding of the arranged second phase is folded back at the neutral point terminal and wound without being cut, and apart from this, the connecting wire is arranged at the third stage farthest from the axial end surface of the stator core. Wind the third phase winding independently,
Three power supply terminals and a neutral point terminal for supplying power to a winding of a three-phase single Y connection inserted on the connection side of the insulating part are formed by bending a square line,
When the stator of the electric motor is viewed in plan, the first to third phase coils of the three-phase single Y connection are connected in the clockwise direction, and the band-shaped stator core with the insulating portion is viewed from the teeth side. In this case, the first-phase to third-phase windings, the three power supply terminals, and the neutral point terminal are arranged as follows.
a. The first phase winding comprises the following coils:
(1) Coil U1 + wound around the teeth in the clockwise direction when viewed from the teeth side on the fifth tooth from the left of the strip-shaped stator core provided with the insulating portion;
(2) Coil U2- wound around the teeth in the counterclockwise direction when viewed from the teeth side, on the sixth tooth from the left of the strip-shaped stator core provided with the insulating portion;
(3) A coil U3- wound around the teeth counterclockwise as viewed from the teeth side on the eleventh tooth from the left of the strip-shaped stator core provided with the insulating portion;
(4) Coil U4 + wound around the teeth in the clockwise direction when viewed from the teeth side, on the twelfth tooth from the left of the strip-shaped stator core provided with the insulating portion;
b. The second phase winding comprises the following coils:
(1) A coil V1- wound around the tooth counterclockwise as viewed from the tooth side on the third tooth from the left of the strip-shaped stator core provided with the insulating portion;
(2) Coil V2 + wound around the teeth in the clockwise direction when viewed from the teeth side on the fourth tooth from the left of the band-shaped stator core provided with the insulating portion;
(3) Coil V3 + wound around the teeth in the clockwise direction when viewed from the teeth side, on the ninth tooth from the left of the strip-shaped stator core provided with the insulating portion;
(4) Coil V4- wound around the teeth in the counterclockwise direction when viewed from the teeth side on the tenth tooth from the left of the strip-shaped stator core provided with the insulating portion;
c. The third phase winding comprises the following coils:
(1) A coil W1 + wound around the first tooth from the left of the strip-shaped stator iron core provided with an insulating portion and clockwise when viewed from the tooth side;
(2) Coil W2- wound around the teeth counterclockwise when viewed from the teeth side, on the second tooth from the left of the strip-shaped stator core provided with the insulating portion;
(3) A coil W3- wound around the teeth counterclockwise when viewed from the teeth side, on the seventh tooth from the left of the strip-shaped stator core provided with the insulating portion;
(4) Coil W4 + wound around the teeth in the clockwise direction when viewed from the teeth side on the eighth tooth from the left of the strip-shaped stator core provided with the insulating portion;
d. The three power terminals are arranged on the second, third, and fourth teeth from the left of the strip-shaped stator core with the insulating portion applied;
e. A neutral point terminal is arrange | positioned at the 10th tooth | gear from the left of the strip | belt-shaped stator iron core to which the insulation part was given.

  The stator of the electric motor according to the present invention can be manufactured by bending the square wire to the terminal for supplying power and the neutral point terminal, thereby simplifying the processing and reducing the processing cost, and reducing the component cost. The price of the neutral point terminal can be reduced, and the coil can be easily formed on the band-shaped stator core in which the insulating portion is formed for the stator of the motor with 12 slots and 10 poles and single Y connection, and , Crossover wires of different phases can be kept out of contact.

FIG. 5 shows the first embodiment, and is a perspective view showing a state where the stator 100 of the motor is reversely bent and wound. FIG. 5 shows the first embodiment, and is a perspective view of a stator core 1 (band shape). FIG. 3 shows the first embodiment and is a cross-sectional view of a 12-slot / 8-pole synchronous motor using the stator 100 of the motor. FIG. 3 shows the first embodiment and is a connection diagram of stator windings of the stator 100 of the electric motor. FIG. 5 shows the first embodiment and is a development view showing a method of connecting the stator windings of the stator 100 of the electric motor. FIG. 3 is a diagram showing the first embodiment, and is a perspective view of a power supply terminal 4. FIG. 3 is a diagram showing the first embodiment, and is a perspective view of a neutral point terminal 5; FIG. 5 shows the first embodiment, and is a perspective view of a neutral point terminal 5 of a modified example. FIG. 5 is a diagram showing the first embodiment, and is a front view showing a state in which an insulating portion 3 is applied to the belt-shaped stator core 1 (however, the anti-connection side is omitted). FIG. 10 shows the first embodiment and is an enlarged view of the vicinity of # 1 to # 4 teeth 1a of FIG. 9; FIG. 10 shows the first embodiment, and is an enlarged view of the vicinity of # 5 to # 8 teeth 1a in FIG. 9; FIG. 10 is a diagram showing the first embodiment, and is an enlarged view in the vicinity of # 9 to # 12 teeth 1a of FIG. 9; FIG. 3 is a diagram illustrating the first embodiment, and is a diagram illustrating a winding procedure of the stator 100 of the motor ((a) is a winding procedure of the first phase (U phase), and (b) is a second phase (V phase). Winding procedure, (c) is the third phase (W phase) winding procedure). FIG. 14 shows the first embodiment, and is an enlarged view showing a first-phase (U-phase) coil U1 in FIG. Fig. 14 shows the first embodiment, and is an enlarged view showing a first phase (U phase) coil U2 of Fig. 13A. FIG. 14 shows the first embodiment and is an enlarged view showing the first phase (U phase) coil U3 and coil U4 in FIG. FIG. 14 shows the first embodiment, and is an enlarged view showing a second-phase (V-phase) coil V4 of FIG. 13B. FIG. 14 shows the first embodiment, and is an enlarged view showing a second phase (V phase) coil V2 and a coil V3 in FIG. FIG. 14 shows the first embodiment, and is an enlarged view showing a second-phase (V-phase) coil V1 of FIG. 13B. FIG. 14 shows the first embodiment, and is an enlarged view showing a third-phase (W-phase) coil W1 and a coil W2 in FIG. 13C. FIG. 14 shows the first embodiment and is an enlarged view showing a third-phase (W-phase) coil W3 in FIG. FIG. 14 shows the first embodiment, and is an enlarged view showing a third-phase (W-phase) coil W4 in FIG. 13 (c). FIG. 3 shows the first embodiment, and is a perspective view of a stator 100 of the electric motor. FIG. 5 shows the first embodiment, and is a partially enlarged view near a neutral point terminal 5; FIG. 9 shows the second embodiment, and is a perspective view showing a state in which a stator 200 of an electric motor is reversely bent and wound. FIG. 10 is a diagram showing the second embodiment, and is a perspective view showing a state in which an insulating portion 3 is applied to a stator core 1 (band shape) and terminals are attached. FIG. 9 is a diagram illustrating the second embodiment and is a cross-sectional view of a 12-slot / 10-pole synchronous motor using the stator 200 of the motor. FIG. 6 shows the second embodiment, and is a connection diagram of stator windings of a stator 200 of an electric motor. FIG. 9 shows the second embodiment and is a development view showing a method of connecting the stator windings of the stator 200 of the electric motor. It is a figure which shows Embodiment 2, and is a front view which shows the state which gave the insulation part 3 to the strip | belt-shaped stator core 1 (however, the anti-connection side is abbreviate | omitting). It is a figure which shows Embodiment 2, and is an enlarged view of # 1-# 4 teeth 1a vicinity of FIG. It is a figure which shows Embodiment 2, and is an enlarged view of # 5- # 8 teeth 1a vicinity of FIG. FIG. 32 shows the second embodiment and is an enlarged view of the vicinity of # 9 to # 12 teeth 1a in FIG. 30; FIG. 5 is a diagram illustrating the second embodiment, and is a diagram illustrating a winding procedure of the stator 200 of the motor ((a) is a winding procedure of the first phase (U phase), and (b) is a second phase (V phase). Winding procedure, (c) is the third phase (W phase) winding procedure). FIG. 35 shows the second embodiment and is an enlarged view showing coils U1 + and U2- of the first phase (U phase) in FIG. 34 (a). It is a figure which shows Embodiment 2, and is an enlarged view which shows the coil U3- and coil U4 + of the 1st phase (U phase) of Fig.34 (a). It is a figure which shows Embodiment 2, and is an enlarged view which shows the coil V3 + and coil V4- of the 2nd phase (V phase) of FIG.34 (b). FIG. 35 shows the second embodiment, and is an enlarged view showing a second-phase (V-phase) crossover 2b in FIG. 34 (b). FIG. 35 shows the second embodiment and is an enlarged view showing the second-phase (V-phase) coil V1− and the coil V2 + in FIG. FIG. 34 shows the second embodiment and is an enlarged view showing a third-phase (W-phase) coil W1 + and a coil W2- in FIG. 33 (c). FIG. 35 shows the second embodiment and is an enlarged view showing the third-phase (W-phase) coil W3- and the coil W4 + of FIG. 34 (c). FIG. 35 shows the second embodiment and is an enlarged view showing connection to the neutral point terminal 5 of the third phase (W phase) of FIG. 34 (c). FIG. 5 shows the second embodiment, and is a perspective view of a stator 200 of the electric motor. FIG. 5 shows the third embodiment and shows the electric motor 300. FIG. 9 shows the third embodiment and shows the manufacturing process of the electric motor 300. FIG. 6 shows the fourth embodiment and shows the structure of the air conditioner 400. FIG. FIG. 10 shows the fifth embodiment and is a cross-sectional view of a pump 500.

Embodiment 1 FIG.
1 to 24 are diagrams showing the first embodiment. FIG. 1 is a perspective view showing a state in which a stator 100 of an electric motor is reversely bent and wound, and FIG. 2 is a perspective view of a stator core 1 (band-like). 3 is a sectional view of a 12-slot / 8-pole synchronous motor using the stator 100 of the motor, FIG. 4 is a connection diagram of the stator windings of the stator 100 of the motor, and FIG. 5 is a diagram of fixing the stator 100 of the motor. FIG. 6 is a perspective view of the power supply terminal 4, FIG. 7 is a perspective view of the neutral point terminal 5, FIG. 8 is a perspective view of the modified neutral point terminal 5, and FIG. FIG. 10 is a front view showing a state in which the insulating portion 3 is applied to the belt-shaped stator core 1 (however, the anti-connection side is omitted), FIG. 10 is an enlarged view of the vicinity of # 1 to # 4 teeth 1a in FIG. 11 is an enlarged view of the vicinity of # 5 to # 8 teeth 1a of FIG. 9, FIG. 12 is an enlarged view of the vicinity of # 9 to # 12 teeth 1a of FIG. 9, and FIG. The figure which shows the winding procedure of the stator 100 of a motive ((a) is the winding procedure of the 1st phase (U phase), (b) is the winding procedure of the 2nd phase (V phase), (c) is 3 FIG. 14 is an enlarged view showing the coil U1 of the first phase (U phase) in FIG. 13A, and FIG. 15 is the first phase (U of FIG. 13A). 16 is an enlarged view showing the coil U3 and the coil U4 of the first phase (U phase) in FIG. 13A, and FIG. 17 is a second phase of FIG. FIG. 18 is an enlarged view showing the second phase (V phase) coil V2 and coil V3 of FIG. 13B, and FIG. 19 is the second phase of FIG. 13B. FIG. 20 is an enlarged view showing the third-phase (W-phase) coil W1 and coil W2 of FIG. 13C, and FIG. 21 is a three-phase view of FIG. 13C. Eye (W phase) coil W3 is shown FIG. 22 is an enlarged view showing the third-phase (W-phase) coil W4 of FIG. 13C, FIG. 23 is a perspective view of the stator 100 of the motor, and FIG. 24 is a portion near the neutral point terminal 5 It is an enlarged view.

  The stator 100 of the electric motor according to the first embodiment constitutes a brushless DC motor (synchronous electric motor) in combination with, for example, a rotor using a permanent magnet.

In the first embodiment, a stator 100 of a 12-slot / 8-pole motor will be described. The stator 100 of this electric motor is characterized in the following points. Each code will be described later.
(1) The number of slots of the stator core 1 is 12 (the stator core 1 has 12 teeth 1a);
(2) The coil 2 is a three-phase single Y connection and has 8 poles. The coil 2 is a concentrated winding method that is wound around each of the 12 teeth 1a;
(3) The stator core 1 is formed by punching a magnetic steel sheet having a thickness of about 0.1 to 0.7 mm into a strip shape, caulking them, and laminating them by welding, adhesion, or the like. The strip-shaped stator core 1 has 12 teeth 1a;
(4) The strip-shaped stator core 1 is provided with an insulating portion 3 that serves as an insulation between the coil 2 and the stator core 1. The insulating portion 3 is formed integrally with the stator core 1 using, for example, a thermoplastic resin such as PBT (polybutylene terephthalate). However, you may assemble | attach the teeth 1a after shaping | molding the insulation part 3. FIG. In that case, the insulating part 3 is divided into a connection side and an anti-connection side, and each is inserted from both ends in the axial direction of the tooth 1a to constitute the insulating part 3. The insulating part 3 is provided for each tooth 1a. Therefore, here, twelve insulating parts 3 are provided;
(5) After the insulating portion 3 is applied to the belt-shaped stator core 1, the three power terminals 4 and one of the inner ends of the insulating portion 3 at a predetermined position on one axial end (connection side) Insert the sex point terminal 5;
(6) The present embodiment is characterized in that a rectangular wire is used for the power supply terminal 4 and the neutral point terminal 5. Details of the flat wire will be described later;
(7) The belt-shaped stator iron core 1 is bent in the opposite direction to the completed stator 100 of the electric motor so that the opening between the teeth 1a is widened. Thereby, it becomes easy to wind the coil 2 around the teeth 1a;
(8) The first phase and the second phase are continuously wound (the connecting wire is not cut). The present embodiment is also characterized in this respect;
(9) Wind the third phase. In the third phase, the coil is formed by another magnet wire different from the first phase and the second phase;
(10) Positively bend the stator iron core 1 after winding so that the teeth 1a are on the inside (bent in a predetermined direction into a substantially donut shape);
(11) The stator core butting portion 63 of the stator core 1 is welded and fixed by the welded portion 64;
(12) Fusing of the power supply terminal 4 and the neutral point terminal 5;
(13) Further, the connection component 41 connected to the outside is assembled to the stator 100 of the electric motor, and mechanically and electrically joined.

  The stator 100 of the electric motor shown in FIG. 1 shows a state in which the stator core 1 is reversely bent to complete the winding. And it is the figure which has seen the stator 100 of the electric motor from the diagonally upper side by the side of a connection. However, the winding start terminal, the winding end terminal, the crossover wire and the like of the coil 2 are not shown.

  Since the stator core 1 is bent backward, the teeth 1a face outward. Moreover, there is a wide space between adjacent teeth 1a, and a magnet wire can be easily wound around the teeth 1a.

  Three power supply terminals 4 are inserted into predetermined locations on the connection side (the upper side in the axial direction in FIG. 1) of the outer wall of the insulating portion 3 formed integrally with the stator core 1.

  Further, one neutral point terminal 5 is inserted at a predetermined location on the connection side (the upper side in the axial direction in FIG. 1) of the outer wall of the insulating portion 3 integrally formed with the stator core 1.

  A projection 7 for routing the neutral point terminal 5 is provided on the connection side of the outer wall of the insulating portion 3 to which the neutral point terminal 5 is assembled. The routing protrusion 7 will be described later.

  Furthermore, the connecting wire of the outer wall of the insulating part 3 is provided with a protrusion 8 that holds the connecting wire of each phase at a predetermined position from the axial end surface of the stator core 1. Details of this point will be described later.

  The configuration of the strip-shaped stator core 1 will be described with reference to FIG. Since stator 100 of the electric motor in the present embodiment has 12 slots, there are also 12 teeth 1a.

  The strip-shaped stator core 1 is formed by punching a magnetic steel sheet having a thickness of about 0.1 to 0.7 mm into a strip shape and laminating by caulking, welding, adhesion, or the like.

  The shape of each tooth 1a is substantially T-shaped in plan view. The teeth 1a extend substantially perpendicularly from the core back 1b.

  The tip 1a-1 of the teeth 1a (opposite side of the core back 1b) has a substantially quadrangular shape in front view. The tip portion 1a-1 of the tooth 1a is exposed even after the insulating portion 3 is integrally formed with the stator core 1. The gap between the rotor (not shown) and the stator 100 of the electric motor needs to be a gap having a radial dimension of 1 mm or less. Therefore, the insulating part 3 is not provided in the front-end | tip part 1a-1 of the teeth 1a.

  Adjacent teeth 1a have a core back 1b connected by a thin connecting portion 1c. Therefore, the strip-shaped stator core 1 can be freely bent backward and forward.

  The core end surface 1d, which is the outer end surface of the core back 1b of the teeth 1a at both ends of the strip-shaped stator core 1, bends the stator core 1 after winding forward so that the teeth 1a are inside, and the stator core When the butt portion 63 is welded and fixed by the weld portion 64, they abut against each other. See FIG. 23 for the stator core butting portion 63 and the welding portion 64.

  As shown in FIG. 3, the 12-slot / 8-pole synchronous motor is a synchronous motor in which the ratio of the number of teeth 1a to the number of rotor magnetic poles is 3: 2.

  In this stator coil arrangement, the windings of the respective phases are arranged in the order of U, V, and W, and the synchronous motor is driven by flowing an alternating current having a phase difference of 120 °.

  The winding direction of the coil 2 wound around each tooth 1a is the same direction.

  The U-phase coil includes a coil U1, a coil U2, a coil U3, and a coil U4. The winding start of the coil U <b> 1 is connected to a U terminal that is one of the power supply terminals 4. The winding end of the coil U4 is connected to the neutral point terminal 5 (neutral point).

  The V-phase coil includes a coil V1, a coil V2, a coil V3, and a coil V4. The winding start of the coil V <b> 1 is connected to a V terminal that is one of the power supply terminals 4. The winding end of the coil V4 is connected to the neutral point terminal 5 (neutral point). The V terminal is provided in the insulating portion 3 of the tooth 1a adjacent to the tooth 1a provided with the U terminal (in the example of FIG. 3, the tooth 1a adjacent to the tooth 1a provided with the U terminal in the counterclockwise direction).

  The W-phase coil includes a coil W1, a coil W2, a coil W3, and a coil W4. The winding start of the coil W <b> 1 is connected to a W terminal that is one of the power supply terminals 4. The winding end of the coil W4 is connected to the neutral point terminal 5 (neutral point). The W terminal is provided in the insulating portion 3 of the tooth 1a adjacent to the tooth 1a provided with the V terminal (in the example of FIG. 3, the tooth 1a adjacent to the tooth 1a provided with the V terminal in the counterclockwise direction).

  As shown in the connection diagram of the stator windings of the stator 100 of the electric motor in FIG. 4, the stator windings of the stator 100 of the electric motor are connected to a single Y. That is, the U-phase coil U1, coil U2, coil U3, and coil U4 are connected in series. A V-phase coil V1, a coil V2, a coil V3, and a coil V4 are connected in series. Further, a W-phase coil W1, a coil W2, a coil W3, and a coil W4 are connected in series. The winding ends of the coil U4, the coil V4, and the coil W4 are connected to the neutral point N.

  The stator winding connection method will be further described with reference to a development view showing the stator winding connection method of the stator 100 of the electric motor shown in FIG.

  Here, the first phase is called the U phase, the second phase is called the V phase, and the third phase is called the W phase. In the first U phase, the first coil U1 is formed on the third tooth 1a from the left. The coil U2 is formed on the sixth tooth 1a from the left. The coil U3 is formed on the ninth tooth 1a from the left. The coil U4 is formed on the twelfth tooth 1a from the left (the first tooth 1a from the right). The winding directions of the coil U1, the coil U2, the coil U3, and the coil U4 are all the same.

  In the second V phase, the first coil V1 is formed on the second tooth 1a from the left. The coil V2 is formed on the fifth tooth 1a from the left. The coil V3 is formed in the eighth tooth 1a from the left. The coil V4 is formed on the eleventh tooth 1a (the second tooth 1a on the right side) from the left. The winding directions of the coil V1, the coil V2, the coil V3, and the coil V4 are all the same.

  In the third W phase, the first coil W1 is formed on the left first tooth 1a. The coil W2 is formed on the fourth tooth 1a from the left. The coil W3 is formed on the seventh tooth 1a from the left. The coil W4 is formed on the eleventh tooth 1a (the third tooth 1a on the right side) from the left. The winding directions of the coil W1, the coil W2, the coil W3, and the coil W4 are all the same.

  As already described, the winding start of the coil U1, the coil V1, and the coil W1 is connected to the power supply terminal 4, respectively. The winding ends of the coil U4, the coil V4, and the coil W4 are connected to the neutral point terminal 5, respectively.

  This embodiment is characterized in that a rectangular wire is used for the power supply terminal 4 and the neutral point terminal 5.

  The power supply terminal 4 shown in FIG. 6 is formed by bending a flat wire. The flat wire is made of copper and, for example, a tin-copper alloy is hot-plated. In one example, the flat wire has a thickness of 0.5 mm and a width of 1.0 mm.

  The power supply terminal 4 is bent by approximately 90 ° with respect to the insertion portion 4 b into which the power supply terminal 4 is inserted into a square hole (not shown) provided with a flat wire on the outer wall of the insulating portion 3. It is formed by bending approximately 180 ° at a predetermined position to form the folded portion 4a, and further bending approximately 90 ° so as to extend substantially opposite to the insertion portion 4b inserted into the insulating portion 3.

  The neutral point terminal 5 shown in FIG. 7 uses the same rectangular wire as the power supply terminal 4. The rectangular wire is bent approximately 90 ° with respect to the insertion portion 5d for inserting the neutral point terminal 5 into a square hole (not shown) provided on the outer wall of the insulating portion 3. The first folded portion 5a is formed by bending approximately 180 ° at a predetermined position. Further, the second folded portion 5b is formed by bending approximately 180 ° toward the insertion portion 5d at a position that is substantially symmetrical with respect to the insertion portion 5d to the insulating portion 3. An opening 5c is provided between the tip 5b-1 of the second folded portion 5b and the insertion portion 5d to the insulating portion 3.

  Note that the power supply terminal and the neutral point terminal can be reduced in cost because there is no loss of material, for example, in the manufacture of terminals by press punching. Moreover, although the example which uses a flat wire for the power supply terminal 4 and the neutral point terminal 5 was demonstrated, it may not be a flat wire but should just be a square wire.

  Moreover, as shown in FIG. 8, the neutral point terminal 5 may bend the 1st folding | turning part 5a and the 2nd folding | turning part 5b in the reverse direction, as shown in FIG.

  The configuration of the strip-shaped stator core 1 provided with the insulating portion 3 will be described with reference to FIGS. FIG. 9 shows the outer wall on the connection side from the teeth 1a side with the strip-shaped stator core 1 provided with the insulating portion 3 being horizontal. There are 12 teeth 1a, but each is numbered. # 1, # 2,... # 12 in order from the left side.

  However, since FIG. 9 looks at the whole connection side of the teeth 1a of # 1 to # 12 and is fine and difficult to understand, these are divided into three and the teeth 1a of # 1 to # 4 are shown in FIG. The tooth 1a of # 8 is shown in FIG. 11, and the teeth 1a of # 9 to # 12 are shown in FIG.

  A third-phase (W-phase) coil W1 is formed on the # 1 tooth 1a to which the insulating portion 3 is applied. As shown in FIGS. 9 and 10, the power supply terminal 4 is inserted into the square hole provided in the outer wall of the insulating portion 3 at the substantially central portion of the axial end surface. As will be described later, the power supply terminal 4 is hooked with a magnet wire that becomes the start of winding of the third-phase (W-phase) coil W1.

  Also, a third-phase winding start twist pin 60 is formed on the leftmost side on the outer wall of the insulating portion 3 of the # 1 tooth 1a. As will be described later, a third-phase (W-phase) magnet wire end is tangled on the bald pin 60 from the beginning of the third-phase winding.

  The third phase (W phase) is composed of a coil W1, a coil W2, a coil W3, and a coil W4, which are formed by a single continuous magnet wire. A magnet wire extending from the coil W1 to the coil W2, the coil W2 to the coil W3, the coil W3 to the coil W4, and W4 to the neutral point terminal is referred to as a crossover. In this specification, the third-phase (W-phase) crossover is defined as a crossover 2c. Similarly, the first-phase (U-phase) crossover is defined as a crossover 2a, and the second-phase (V-phase) crossover is defined as a crossover 2b (see FIG. 13).

  A third-phase crossover lead-out portion 26 is formed at the right end of the outer wall of the insulating portion 3 of the # 1 tooth 1a. From the third-phase crossover lead-out portion 26 of the insulating portion 3 of the # 1 tooth 1a, the crossover wire 2c from the coil W1 to the coil W2 is drawn out to the outer peripheral side of the stator core 1.

  A second-phase (V-phase) V1 coil is formed on the # 1 tooth 1a to which the insulating portion 3 is applied. A power supply terminal 4 is inserted in a substantially central portion of the end surface in the axial direction in a square hole provided on the outer wall of the insulating portion 3. A magnet wire that is the end of winding of the second-phase (V-phase) V1 coil is hooked on the power supply terminal 4.

  As will be described later, in the present embodiment, the first-phase (U-phase) and second-phase (V-phase) windings are continuous without cutting the magnet wire. The first-phase (U-phase) coils are formed in order from left to right in FIG. The second-phase (V-phase) coil is formed in order from the right to the left in FIG. 9 starting from the neutral point. Therefore, the second-phase (V-phase) V1 coil formed on the # 2 tooth 1a provided with the insulating portion 3 is a coil formed at the end of the second-phase (V-phase). Therefore, the magnet wire that is the end of the winding of the second-phase (V-phase) V1 coil is hooked on the power supply terminal 4 that is inserted into the square hole on the outer wall of the insulating portion 3 of the # 1 tooth 1a.

  Further, the outer wall of the insulating portion 3 of the # 2 tooth 1a is formed with a second-phase winding end bald pin 24 on the leftmost side. As will be described later, the end (winding end) of the second-phase (V-phase) magnet wire is wound on the bald pin 24 from the end of the second-phase winding.

  Further, a third-phase crossover pin 27 is formed on the outermost wall of the insulating portion 3 of the # 2 tooth 1a. As will be described later, a third-phase (W-phase) transition wire 2c (coil W1 → coil W2) is tangled on the third-phase transition pin 27.

  The left side of the third phase crossover pin 27 is the second phase crossover line entrance 21. A second-phase (V-phase) connecting wire 2b (V2 → V1) is routed from the second-phase connecting wire inlet 21 to the teeth 1a.

  The first phase (U-phase) U1 coil is formed on the # 3 tooth 1a to which the insulating portion 3 is applied. A power supply terminal 4 is inserted in a substantially central portion of the end surface in the axial direction in a square hole provided on the outer wall of the insulating portion 3. The power supply terminal 4 is hooked with a magnet wire that becomes the winding start of the first-phase (U-phase) U1 coil.

  Also, a first-phase winding start bald pin 10 is formed on the leftmost side on the outer wall of the insulating portion 3 of the # 3 tooth 1a. As will be described later, the terminal of the first phase (U phase) magnet wire is wound around the first pin of the first phase winding.

  In addition, a first-phase crossover lead-out portion 11 is formed at the right end of the outer wall of the insulating portion 3 of the # 3 tooth 1a. The connecting wire 2a from the coil U1 to the coil U2 is drawn out to the outer peripheral side of the stator core 1 from the first-phase connecting wire lead-out portion 11 of the insulating portion 3 of the # 1 tooth 1a.

  A third-phase (W-phase) W2 coil is formed on the # 4 tooth 1a to which the insulating portion 3 is applied.

  The outer wall of the insulating portion 3 of the # 4 tooth 1a is provided with a pin 70 for assembling a substrate (not shown) at the center. A three-phase crossover entrance 28 is formed on the left side of the pin 70. Further, a three-phase crossover lead portion 26 is formed on the right side of the pin 70.

  Further, the outer wall of the insulating portion 3 of the # 4 tooth 1a is provided with a first-phase jumping pin 12 at the right end. As will be described later, the connecting wire 2a of the coil U1 → the coil U2 is tangled to the first phase crossover pin 12.

  Further, the outer wall of the insulating portion 3 of the # 4 tooth 1a is provided with a notch 50 on the left side of the first phase crossover pin 12. The first-phase crossover lead portion 11 (# 3 teeth 1a), the first-phase crossover wire inlet 14 (for example, # 6 teeth 1a described later), and the notch 50 are arranged in the axial direction of the stator core 1. The height from the end face is almost the same.

  A second-phase (V-phase) V2 coil is formed on the # 5 tooth 1a to which the insulating portion 3 is applied.

  As shown in FIG. 11, the outer wall of the insulating portion 3 of the # 5 tooth 1a is provided with a second-phase crossover entrance 21 at the right end thereof. Further, the outer wall of the insulating portion 3 of the # 1 tooth 1a is provided with a second-phase crossover lead-out portion 19 at the left end thereof.

  A first phase (U-phase) U2 coil is formed on the # 1 tooth 1a to which the insulating portion 3 is applied.

  A pin 70 for assembling a substrate (not shown) at the center is provided on the outer wall of the insulating portion 3 of the # 1 tooth 1a. On the left side of the pin 70, there is provided a first-phase crossover wire entrance 14 into which the first-phase (U-phase) crossover wire 2a enters.

  Further, on the right side of the pin 70, a first-phase crossover lead portion 11 from which the first-phase (U-phase) crossover wire 2a is drawn is formed. From the first-phase crossover lead portion 11 of the insulating portion 3 of the # 1 tooth 1a, the crossover wire 2a of the coil U2 → the coil U3 is drawn to the outer peripheral side of the stator core 1.

  A third-phase (W-phase) W3 coil is formed on the # 7 tooth 1a to which the insulating portion 3 is applied.

  On the outer wall of the insulating portion 3 of the # 7 tooth 1a, a three-phase crossover entrance 28 is formed on the left side near the center. Further, a three-phase crossover lead portion 26 is formed on the right side near the center.

  Further, the outer wall of the insulating portion 3 of the # 7 tooth 1a is provided with a first-phase jumping pin 12 at the right end. As will be described later, the connecting wire 2a of the coil U2 → the coil U3 is tangled to the first phase crossover pin 12.

  A second-phase (V-phase) V3 coil is formed on the # 8 tooth 1a to which the insulating portion 3 is applied.

  The outer wall of the insulating part 3 of the # 8 tooth 1a is provided with a second-phase crossover entrance 21 at its right end. Further, the outer wall of the insulating portion 3 of the # 8 tooth 1a is provided with a second-phase crossover lead portion 19 at the left end.

  The first phase (U phase) U3 coil is formed on the # 9 tooth 1a to which the insulating portion 3 is applied.

  As shown in FIG. 12, the outer wall of the insulating portion 3 of the # 9 tooth 1a is provided with a pin 70 for assembling a substrate (not shown) at the center. On the left side of the pin 70, there is provided a first-phase crossover wire entrance 14 into which the first-phase (U-phase) crossover wire 2a enters.

  Further, on the right side of the pin 70, a first-phase crossover lead portion 11 from which the first-phase (U-phase) crossover wire 2a is drawn is formed. The connecting wire 2a of the coil U3 → the coil U4 is drawn out to the outer peripheral side of the stator core 1 from the first-phase connecting wire lead-out portion 11 of the insulating portion 3 of the # 1 tooth 1a.

  A third-phase (W-phase) W4 coil is formed on the # 10 tooth 1a to which the insulating portion 3 is applied.

  On the outer wall of the insulating part 3 of the # 10 tooth 1a, a three-phase crossover entrance 28 is formed on the left side near the center. Further, a three-phase crossover lead portion 26 is formed on the right side near the center.

  Further, the outer wall of the insulating portion 3 of the # 1 tooth 1a is provided with a first-phase jumping pin 12 at the right end. As will be described later, a connecting wire 2a of the coil U3 → the coil U4 is tangled to the first phase crossover pin 12.

  Further, the outer wall of the insulating portion 3 of the # 1 tooth 1a is provided with a second-phase jumping pin 20 at the left end. As will be described later, the connecting wire 2b of the coil V4 → the coil V3 is tangled to the second phase jumping pin 20.

  A second-phase (V-phase) V4 coil is formed on the # 11 tooth 1a to which the insulating portion 3 is applied.

  A neutral point terminal 5 is inserted into a square hole provided in a substantially central portion of the outer wall of the insulating portion 3 of the # 11 tooth 1a.

  A projection 7 for routing the neutral point terminal 5 is formed at a substantially central portion of the outer wall of the insulating portion 3 of the # 11 tooth 1a.

  Further, the outer wall of the insulating portion 3 of the # 11 tooth 1a is provided with a burr pin 16 at the right end thereof at the end of the first phase winding. As will be described later, the winding end of the first phase (U phase) is tangled to the bald pin 16 from the end of the first phase winding.

  Also, the outer wall of the insulating portion 3 of the # 11 tooth 1a is provided with a bald pin 29 at the left end thereof at the end of the third phase winding. As will be described later, after the end of the third phase (W-phase) is wound more than once on the bald pin 29 from the end of the third phase, it is hung on the second folded portion 5b of the neutral point terminal 5. Further, the third phase winding is once again pulled back to the bald pin 29, and the third phase winding is completed by winding once or more around the top of the bald pin 29 from the third phase winding end.

  A first-phase (U-phase) U4 coil is formed on the # 12 tooth 1a to which the insulating portion 3 is applied.

  The outer wall of the insulating portion 3 of the # 12 tooth 1a is provided with a first-phase winding end drawing portion 15 at the right end thereof. As will be described later, the magnet wire after the last coil U4 of the first phase is formed is drawn from the lead-out portion 15 at the end of the first phase to the outer peripheral side of the stator core 1.

  A pin 70 for assembling a substrate (not shown) on the right end of the outer wall insulating portion is provided on the outer wall of the insulating portion 3 of the # 12 tooth 1a.

  With reference to FIGS. 13 to 22, a procedure for performing single Y connection of a 12-slot / 8-pole three-phase winding will be described. The coil 2 is applied in a state bent in the opposite direction to the stator 100 of the completed electric motor. Here, the coil 2 will be described with a belt-shaped development view.

  13 is fine and difficult to see, FIG. 13A, FIG. 13B, and FIG. 13C are divided into three parts and shown in FIGS.

  First, the first phase, the second phase, and the third phase are defined as follows. The first phase refers to a U-phase coil that is connected by being routed over a position closest to the end face of the stator core 1.

  The second phase is the V-phase to which the next second stage of the crossover is routed and connected outside the position closest to the end face of the stator core 1 where the crossover of the first phase is routed. Refers to the coil.

  The third phase refers to a W-phase coil that is connected to the second stage of the second phase, the next third stage of which a crossover is routed.

  A first-phase U-phase winding procedure will be described with reference to FIGS. 13A and 14 to 16. As shown in FIG. 13A, the coil formed at the beginning of the first phase is the insulation of the third # 1 tooth 1a from one end of the stator core 1 (the left end in FIG. 13A). The part 3 is formed by winding a magnet wire.

  As shown in FIG. 14, first, the end of the magnet wire is wound around the first phase winding start pin 10 provided on the outer peripheral side of the insulating part 3 of the # 3 tooth 1 a. Thereafter, a magnet wire as the first phase winding is hooked on the folded portion 4a of the power supply terminal 4 inserted in the square hole provided on the outer wall of the insulating portion 3. Then, it is wound a predetermined number of times in a counterclockwise direction around the insulating portion 3 formed on the tooth 1a, so that a first-phase coil U1 is formed.

  The expression “the outer peripheral side of the insulating portion 3” is the outer peripheral side of the stator 100 of the electric motor after completion.

  After the coil U <b> 1 is formed, the connecting wire 2 a is drawn from the first-phase connecting wire lead-out portion 11 of the outer wall of the insulating portion 3 to the outer peripheral side of the stator core 1.

  The opposite side of the side where the crossover 2a has crossed over the insulating portion 3 of the # 4 tooth 1a (next to the right in FIG. 14) adjacent to the # 3 tooth 1a where the first coil U1 of the first phase is formed. The crossover wire 2a is tangled at least once on the first-phase crossover pin 12 provided in the tie to form the fold portion 13. From the curled portion 13, the connecting wire 2 a is again drawn to the outer peripheral side of the stator core 1.

  As shown in FIG. 15, the connecting wire 2a crosses the outer peripheral side of the insulating portion 3 of the # 5 tooth 1a, and the teeth from the first-phase connecting wire inlet 14 provided on the outer wall of the insulating portion 3 of the # 1 tooth 1a. 1a (the sixth tooth 1a from the left side in FIG. 13 (a)) is wound around the teeth 1a a predetermined number of times in a counterclockwise direction (counterclockwise) as in the first coil U1, and the first phase A coil U2 is formed.

  The opposite side of the outer wall of the insulating portion 3 of the # 7 tooth 1a (right in FIG. 15) next to the # 6 tooth 1a on which the first-phase coil U2 is formed, to the side where the crossover wire 2a has crossed. The crossover wire 2a is tangled at least once on the first-phase crossover pin 12 provided in the tie to form the fold portion 13. From the curled portion 13, the connecting wire 2 a is again drawn to the outer peripheral side of the stator core 1.

  The connecting wire 2a drawn to the outer peripheral side of the stator core 1 crosses the outer peripheral side of the outer wall of the insulating portion 3 of the # 1 tooth 1a.

  At this time, the connecting wire 2a is held at a predetermined position by the projection 8 (for example, FIG. 1) provided outside the outer wall of the insulating portion 3 from the axial end surface of the stator core 1 for each phase. However, the first-phase connecting wire 2 a is routed to the first stage closest to the stator core 1.

  Further, the notch 50 of the insulating portion 3 next to the first phase crossover wire inlet 14, the first phase crossover lead portion 11, and the first phase crossover pin 12 (left side in FIG. 13A) The height from the axial end surface of the stator core 1 is substantially the same.

  As shown in FIG. 16, the connecting wire 2a that has crossed the outer peripheral side of the insulating portion 3 of the # 8 tooth 1a is inserted into the teeth from the first-phase connecting wire inlet 14 provided in the insulating portion 3 of the # 9 tooth 1a. 1a is wound around the teeth 1a a predetermined number of times in a counterclockwise direction (counterclockwise) in the same manner as the coil U2, and a first-phase coil U3 is formed.

  The opposite side of the outer wall of the insulating portion 3 of the # 10 tooth 1a (right in FIG. 16) adjacent to the # 9 tooth 1a on which the first-phase coil U3 is formed is the side where the crossover wire 2a has crossed. The crossover wire 2a is tangled at least once on the first-phase crossover pin 12 provided in the tie to form the fold portion 13. The crossover wire 2a is again drawn out from the curled portion 13 to the outer peripheral side of the outer wall of the insulating portion 3 of the stator core 1.

  The connecting wire 2a drawn to the outer peripheral side of the stator core 1 crosses the outer peripheral side of the outer wall (including the neutral point terminal 5) of the insulating portion 3 of the # 11 tooth 1a.

  The connecting wire 2a that has crossed the outer peripheral side of the outer wall of the insulating portion 3 of the # 1 tooth 1a is drawn from the first-phase connecting wire inlet 14 provided on the outer wall of the insulating portion 3 of the # 12 tooth 1a to the tooth 1a. In the same manner as the coil U3, the coil 1 is wound around the tooth 1a a predetermined number of times in a counterclockwise direction (counterclockwise) to form a first-phase coil U4.

  The magnet wire after the last coil U4 of the first phase is formed is the first-phase winding end leading portion 15 (substrate (not shown) provided on the outer wall of the insulating portion 3 of the tooth 1a where the coil U4 is formed. Z) is pulled out to the outer peripheral side from the left side of the pin 70 to be assembled. It is routed in the direction opposite to the direction in which the first-phase connecting wire 2a is routed (leftward in FIG. 16), and is routed to the outer wall of the insulating portion 3 provided in the adjacent tooth 11a of # 11. The first phase is over.

  At this time, by setting the height of the lead-out portion 15 at the end of the first phase winding to be higher than the height of the first folded portion 5a and the second folded portion 5b of the neutral point terminal 5, the neutral point terminal 5 As a result, the magnet wire can be easily routed, and productivity and manufacturing quality can be improved.

  Hereinafter, the winding procedure of the second phase (V phase) will be described with reference to FIGS. 13B and 17 to 19. At the end of the first phase winding, the first phase winding end provided at the right end of the outer wall of the insulating portion 3 of the tooth 11a of # 11 where the first coil V4 of the adjacent second phase is formed once. That's it.

  A substantially T-shaped medium assembled to the insulating portion 3 by using the routing protrusion 7 of the neutral point terminal 5 provided on the outer wall of the insulating portion 3 of the # 11 tooth 1a where the coil V4 is formed. After being hooked on the first folded portion 5 a of the sex point terminal 5, it is routed to the tooth 1 a and becomes the second phase winding start 18.

  By hooking the magnet wire on the routing protrusion 7 of the neutral point terminal 5, the magnet wire can be securely stored in the first folded portion 5 a of the neutral point terminal 5. I can plan.

  Here, hooking the magnet wire on the routing protrusion 7 of the neutral point terminal 5 has the following implications. This will be described with reference to FIG.

  That is, the end of the first phase winding is entangled with the pin 16 at the end of the first phase winding. Using this as a fulcrum, the magnet wire of the beginning of the second phase winding with the nozzle is first drawn around the teeth side of the projection 7 And it pulls to the bald pin 29 side from the end of the third phase winding provided in the outer wall left end of the insulating part 3. When the nozzle passes the routing projection 7, it then moves to the anti-teeth 1a side (the outer peripheral side of the stator 100 of the electric motor). Since the routing protrusion 7 protrudes outward in the axial direction from the neutral point terminal 5, the magnet wire can be applied to the routing protrusion 7 in this state. Next, while maintaining the state where the magnet wire is routed and applied to the projection 7, the nozzle is lowered from the second folded portion 5 b and passes through the left side of the second folded portion 5 b (the magnet wire is located on the right side). It moves to the inner peripheral side (downward in FIG. 24) of the outer wall of the part 3. Then, the magnet wire enters the neutral point terminal 5 from the opening 5 c of the neutral point terminal 5. And if a nozzle is moved to the 1st folding | turning part 5a side, a magnet wire will be hung on the 1st folding | turning part 5a of the neutral point terminal 5. FIG.

  The first coil V4 of the second phase is hooked on the first folded portion 5a of the neutral point terminal 5, and continuously to the teeth 1a of # 11 without cutting the magnet wire, Are wound a predetermined number of times in the reverse direction (right-handed (clockwise)).

  After the first coil V4 of the second phase is formed, the second-phase crossover wire 2b is drawn out from the second-phase crossover lead-out portion 19 to the outer peripheral side of the stator core 1.

  The side where the connecting wire 2b of the outer wall of the insulating portion 3 of the adjacent tooth 10a crosses in the direction opposite to the direction in which the connecting wire 2a of the first phase is routed (the left direction in FIG. 17). The lashing part 51 is formed by being tangled at least once by the second-phase crossover pin 20 provided on the opposite side.

  The connecting wire 2b drawn to the outer peripheral side of the stator core 1 crosses the outer peripheral side of the outer wall of the insulating portion 3 of the tooth 1a of # 9.

  As shown in FIG. 18, it is routed to the teeth 1a from the second-phase crossover entrance 21 provided on the outer wall of the insulating portion 3 of the # 1 tooth 1a (fifth from the right in FIG. 13B). Similarly to the first coil V4, a second-phase coil V3 is formed by winding the teeth 1a clockwise by a predetermined number of times (clockwise).

  At this time, the second-phase crossover wire 2b is routed to the height of the second stage from the end face of the stator core 1 (separated by the protrusion 8 (FIG. 1)). Further, similarly to the first phase, the second phase crossover wire entrance 21, the second phase crossover wire lead-out portion 19, and the insulating portion next to the second phase crossover pin 20 (right side in FIG. 13B). The three cutouts 52 have substantially the same height from the axial end surface of the stator core 1.

  Second-phase crossover provided on the outer wall of the insulating part 3 of the # 7 tooth 1a adjacent to the left of the # 8 tooth 1a on which the second-phase coil V3 is formed, on the opposite side to the side where the crossover wire 2b has crossed. The connecting wire 2b is tangled to the tangled pin 20 at least once to form a tangled portion 51. From the curled portion 51, the connecting wire 2b is again drawn to the outer peripheral side of the stator core 1.

  The connecting wire 2b drawn to the outer peripheral side of the stator core 1 crosses the outer peripheral side of the outer wall of the insulating portion 3 of the # 1 tooth 1a.

  The # 5 tooth 1a is routed from the second-phase crossover entrance 21 provided on the outer wall of the insulating portion 3 to the tooth 1a. Similarly to the coil V3, a second-phase coil V2 is formed by being wound around the tooth 1a a predetermined number of times in a clockwise direction (clockwise).

  As shown in FIG. 19, the outer wall of the insulating portion 3 of the # 4 tooth 1a adjacent to the left of the # 5 tooth 1a on which the second-phase coil V2 is formed is opposite to the side where the crossover wire 2b has crossed. The crossover wire 2b is tangled at least once on the second-phase crossover pin 20 provided on the tie to form a fold portion 51. From the curled portion 51, the connecting wire 2b is again drawn to the outer peripheral side of the stator core 1.

  The connecting wire 2b drawn to the outer peripheral side of the stator core 1 crosses the outer peripheral side of the outer wall of the insulating portion 3 of the # 1 tooth 1a.

  It is routed from the second-phase crossover entrance 21 provided on the outer wall of the insulating portion 3 of the # 1 tooth 1a to the tooth 1a. Similarly to the coil V2, a second-phase coil V1 is formed by winding the teeth 1a clockwise by a predetermined number of times (clockwise).

  The magnet wire after the last coil V1 of the second phase is formed is housed in the folded portion 4a of the power supply terminal 4 assembled on the outer wall of the insulating portion 3 around which the coil V1 is wound.

  The second-phase winding end 23 is wound around the bald pin 24 from the second-phase winding end, and the second-phase winding end 23 is formed and cut.

  Thus, the coil V4 formed at the beginning of the second phase is adjacent to the coil U4 formed at the end of the first phase (see FIG. 17), so that the moving distance of the winding equipment to a predetermined position is small. By minimizing the machining time, the machining time can be reduced and the machining cost can be reduced.

  In addition, since the first phase (U phase) and the second phase (V phase) can be continuously routed without cutting, the process of cutting the magnet wire is unnecessary, and the processing time is further reduced. Therefore, the processing cost can be reduced.

  Hereinafter, the winding procedure of the third phase (W phase) will be described with reference to FIG. 13C and FIGS. The first coil W1 formed in the third phase is formed in the # 1 tooth 1a adjacent to the left of the # 2 tooth 1a (second from the left) in which the last coil V1 in the second phase is formed. .

  The coil W1 formed at the beginning of the third phase is similar to the first phase in that the end of the magnet wire is routed around the winding pin 60 from the beginning of the third phase winding, and then the third phase winding start 25 is the power terminal 4 Is wound around the insulating portion 3 applied to the # 1 tooth 1a through the folded portion 4a, and is wound around the tooth 1a a predetermined number of times in the left-handed direction (counterclockwise), thereby forming the coil W1.

  The connecting wire 2 c is drawn from the third-phase connecting wire lead-out portion 26 to the outer peripheral side of the stator core 1. And it is routed to the third-phase crossover pin 27 provided next to the second-phase crossover line entrance 21 provided on the outer wall of the insulating portion 3 of the # 2 tooth 1a adjacent to the right. The tangled portion 53 is formed by tangling at the third phase crossover pin 27 one or more times.

  The connecting wire 2c drawn to the outer peripheral side of the stator core 1 crosses the outer peripheral side of the outer wall of the insulating portion 3 of the # 1 tooth 1a.

  The # 4 tooth 1a (fourth from the left) is routed from the third phase crossover entrance 28 provided on the outer wall of the insulating portion 3 to the tooth 1a. Then, similarly to the first coil W1, the third-phase coil W2 is formed by winding the left-handed (counterclockwise) predetermined number of times around the # 4 tooth 1a.

  At this time, the third-phase connecting wire 2 c crosses the height position farthest from the end face of the stator core 1. The three-phase crossover wire entrance 28 and the three-phase crossover wire lead-out portion 26 have substantially the same height from the end face of the stator core 1.

  As shown in FIG. 21, the outer wall of the insulating portion 3 of the # 5 tooth 1a adjacent to the # 4 tooth 1a where the third-phase coil W2 is formed is opposite to the side where the crossover wire 2c has crossed. The connecting wire 2 c is tangled one or more times to the provided third-phase jumping pin 27 to form the bulging portion 53. From the curled portion 53, the connecting wire 2c is drawn out to the outer peripheral side of the stator core 1 again.

  The connecting wire 2c drawn to the outer peripheral side of the stator core 1 crosses the outer peripheral side of the outer wall of the insulating portion 3 of the # 1 tooth 1a.

  The # 7 tooth 1a is routed to the tooth 1a from the three-phase crossover entrance 28 provided on the outer wall of the insulating portion 3. Then, similarly to the coil W2, the third-phase coil W3 is formed by winding the left-handed (counterclockwise) predetermined number of times around the # 7 tooth 1a.

  From the third-phase crossover provided on the opposite side of the outer wall of the insulating portion 3 of the # 8 tooth 1a adjacent to the # 7 tooth 1a where the third-phase coil W3 is formed, on the side where the crossover wire 2c has crossed. The crossover wire 2c is tangled to the bald pin 27 one or more times to form a bald portion 53. From the curled portion 53, the connecting wire 2c is drawn out to the outer peripheral side of the stator core 1 again.

  As shown in FIG. 22, the connecting wire 2 c drawn to the outer peripheral side of the stator core 1 crosses the outer peripheral side of the outer wall of the insulating portion 3 of the tooth 1 a of # 9.

  It is drawn to the teeth 1a from the three-phase crossover entrance 28 provided on the outer wall of the insulating portion 3 of the # 1 teeth 1a. Then, similarly to the coil W3, a third-phase coil W4 is formed by being wound around the # 1 tooth 1a a predetermined number of times in a counterclockwise direction (counterclockwise direction).

  A three-phase crossover wire lead-out portion 26 and a three-phase crossover wire inlet 28 provided on the outer wall of the insulating portion 3 where the third-phase coil W2, the coil W3, and the coil W4 are formed are connected to the first-phase crossover pin. 12 is provided separately from the notch 50 provided on the side and the notch 52 provided on the side of the second-phase crossover pin 20 to prevent the connecting wires of different phases from coming into contact with each other.

  After the last coil W4 of the third phase is formed, the magnet wire is drawn from the third-phase crossover lead-out portion 26 (formed on the tooth 1a of # 10 in FIG. 22).

  Furthermore, the lead wire 29 is routed from the end of the third phase winding of the outer wall of the insulating portion 3 including the neutral point terminal 5. After tangling to the bald pin 29 from the end of the third phase winding one or more times, it is hung on the second folded portion 5b of the neutral point terminal 5, and then pulled back to the bald pin 29 again from the end of the third phase winding. At the end of the third phase winding, the winding pin 29 is wound at least once to complete the third phase winding, and the magnet wire is cut to complete the winding process.

  As described above, the coil W1 formed at the beginning of the third phase is adjacent to the right side of the coil V1 formed at the end of the second phase. Accordingly, the moving distance to the predetermined position of the winding equipment is minimized. Therefore, the processing time can be reduced, and the processing cost can be reduced.

  After the winding process is completed, the stator core 1 is bent in a predetermined direction into a substantially donut shape, and the stator core butt portion 63 of the stator core 1 is welded and fixed by the welded portion 64 (see FIG. 23). ).

  At this time, the connecting wires 2a, 2b, 2c of each phase are held at predetermined positions by the protrusions 8 (FIG. 1) provided on the outer peripheral side of the insulating portion 3, and the connecting wires 2a, 2b, 2c of each phase are in contact with each other. Therefore, quality can be improved. However, in FIG. 23, the connecting wires 2a, 2b, and 2c are not shown.

  Further, by fusing the power supply terminal 4 and the neutral point terminal 5, the magnet wire, the power supply terminal 4 and the neutral point terminal 5 are electrically and mechanically joined to each other, and the stator 100 of the motor Become.

  In general, each phase has a neutral point terminal 5. On the other hand, in this embodiment, the number of parts can be reduced and the cost can be reduced by covering the neutral point terminal 5 with one.

  Here, the power supply terminal and the neutral point terminal can be reduced in cost because there is no loss of material for terminal manufacture by press punching, for example. Moreover, the cost can be reduced by using the same material (flat wire) as the power supply terminal 4 for supplying power to the neutral point terminal 5 for generating a neutral point.

Embodiment 2. FIG.
In the second embodiment, a stator 200 of a 12-slot / 10-pole motor will be described. This electric motor stator 200 is characterized in the following points.
(1) The number of slots of the stator core 1 is 12 (the stator core 1 has 12 teeth 1a);
(2) The coil 2 is a three-phase single Y connection and has 10 poles. The coil 2 is a concentrated winding method formed on each of the 12 teeth 1a;
(3) The stator core 1 is formed by punching a magnetic steel sheet having a thickness of about 0.1 to 0.7 mm into a strip shape, caulking them, and laminating them by welding, adhesion, or the like. The strip-shaped stator core 1 has 12 teeth 1a;
(4) The strip-shaped stator core 1 is provided with an insulating portion 3 that serves as an insulation between the coil 2 and the stator core 1. The insulating portion 3 is formed integrally with the stator core 1 using, for example, a thermoplastic resin such as PBT (polybutylene terephthalate). However, you may assemble | attach the teeth 1a after shaping | molding the insulation part 3. FIG. In that case, the insulating part 3 is divided into a connection side and an anti-connection side, and each is inserted from both ends in the axial direction of the tooth 1a to constitute the insulating part 3. The insulating part 3 is provided for each tooth 1a. Therefore, here, twelve insulating parts 3 are provided;
(5) After the insulating part 3 is applied to the belt-shaped stator core 1, next, three power terminals 4 and one piece are provided at a predetermined position on one axial end (connection side) of the outer wall of the insulating part 3. Insert the neutral point terminal 5 of
(6) The present embodiment is characterized in that rectangular wires are used for the power supply terminal 4 and the neutral point terminal 5;
(7) The belt-shaped stator iron core 1 is bent in the opposite direction to the completed stator 100 of the electric motor so that the opening between the teeth 1a is widened. Thereby, it becomes easy to wind the magnet wire around the teeth 1a;
(8) The first phase and the second phase are continuously wound (the connecting wire is not cut). The present embodiment is also characterized in this respect;
(9) Wind the third phase. The third phase is wound with a different magnet wire than the first and second phases;
(10) Positively bend the stator iron core 1 after winding so that the teeth 1a are on the inside (bent in a predetermined direction into a substantially donut shape);
(11) The stator core butting portion 63 of the stator core 1 is welded and fixed by the welded portion 64;
(12) Fusing of the power supply terminal 4 and the neutral point terminal 5;
(13) Further, the connection component 41 connected to the outside is assembled to the stator 100 of the electric motor, and mechanically and electrically joined.

  25 to 43 are diagrams showing the second embodiment. FIG. 25 is a perspective view showing a state in which the stator 200 of the motor is reversely bent and wound, and FIG. 26 is an insulating portion on the stator core 1 (band shape). FIG. 27 is a cross-sectional view of a 12-slot / 10-pole synchronous motor using the stator 200 of the motor, and FIG. 28 is a connection of the stator windings of the stator 200 of the motor. 29 is a developed view showing a method of connecting the stator windings of the stator 200 of the motor, and FIG. 30 is a front view showing a state in which the insulating portion 3 is applied to the strip-shaped stator core 1 (however, on the anti-connection side) 31 is an enlarged view of the vicinity of # 1 to # 4 teeth 1a of FIG. 30, FIG. 32 is an enlarged view of the vicinity of # 5 to # 8 teeth 1a of FIG. 30, and FIG. FIG. 34 is an enlarged view of the vicinity of 9 to # 12 teeth 1a, and FIG. (A) is a winding procedure of the first phase (U phase), (b) is a winding procedure of the second phase (V phase), and (c) is a winding of the third phase (W phase). 35) is an enlarged view showing coils U1 + and U2- of the first phase (U phase) in FIG. 34A, and FIG. 36 is a coil U3- of the first phase (U phase) in FIG. 37 is an enlarged view showing the coil U4 +, FIG. 37 is an enlarged view showing the coil V3 + and the coil V4- of the second phase (V phase) of FIG. 34B, and FIG. 38 is the second phase (V of FIG. 34B). 39 is an enlarged view showing the connecting wire 2b of FIG. 34, FIG. 39 is an enlarged view showing the second phase (V phase) coil V1- and coil V2 + of FIG. 34B, and FIG. 40 is a three-phase drawing of FIG. FIG. 41 is an enlarged view showing the third-phase (W-phase) coil W3- and coil W4 + of FIG. 34C, and FIG. 42 is FIG. (C) Three phases Enlarged view showing the connection to the neutral point terminal 5 (W phase), FIG. 43 is a perspective view of a stator 200 of the motor.

  The stator 200 of the electric motor shown in FIG. 25 shows a state in which the winding is completed by reversely bending the stator core 1. And it is the figure which has seen the stator 200 of the electric motor from the diagonally upper side by the side of a connection. However, the winding start terminal, the winding end terminal, the crossover wire and the like of the coil 2 are not shown.

  Since the stator core 1 is bent backward, the teeth 1a face outward. Moreover, there is a wide space between adjacent teeth 1a, and a magnet wire can be easily wound around the teeth 1a.

  Three power supply terminals 4 are inserted into predetermined locations on the connection side (the upper side in the axial direction in FIG. 25) of the insulating portion 3 formed integrally with the stator core 1. In order to make the 12-slot / 8-pole motor stator 100 of FIG. 1 and the substrate (not shown) common, the arrangement of the three power terminals 4 and the arrangement of the pins 70 (three) for assembling the substrate are arranged. The same as the stator 100 of the 12-slot / 8-pole motor shown in FIG. Details will be described later.

  Further, one neutral point terminal 5 is inserted at a predetermined location on the connection side (the upper side in the axial direction in FIG. 25) of the insulating portion 3 integrally formed with the stator core 1. Since the neutral point terminal 5 is not related to the substrate, its position is not restricted.

  In the first embodiment, the routing protrusion 7 for the neutral point terminal 5 is provided on the connection side of the insulating portion 3 to which the neutral point terminal 5 is assembled. However, in the second embodiment, this is omitted. The routing protrusion 7 of the neutral point terminal 5 may not be provided.

  Furthermore, the insulating part 3 is provided with a protrusion 8 that holds the connecting wire of each phase at a predetermined position on the connection side, with the height from the axial end surface of the stator core 1 in a predetermined position.

  Since the configuration of the strip-shaped stator core 1 is the same as that of the first embodiment, the description thereof is omitted.

  As shown in FIG. 26, the insulating part 3 is formed in the strip-shaped stator core 1 by integral molding. However, it may not be integrally molded. A configuration in which the insulating part 3 as a separate part is inserted into each tooth 1a from both sides in the axial direction is also possible.

  Three power supply terminals 4 and one neutral point terminal 5 are attached to the connection side (upper side in FIG. 26) of the insulating part 3 to the strip-shaped stator core 1 in which the insulating part 3 is formed by integral molding. Although the details of the positions of the three power terminals 4 and one neutral point terminal 5 will be described later, in FIG. 26, the three power terminals 4 are the insulating portions 3 of the second to fourth teeth 1a from the left. Is provided. Further, one neutral point terminal 5 is provided on the outer wall of the insulating portion 3 of the third tooth 1a from the right in FIG.

  As shown in FIG. 27, the 12-slot / 10-pole synchronous motor is a synchronous motor in which the ratio of the number of teeth 1a to the number of rotor magnetic poles is 6: 5.

  The U phase includes a coil U1 +, a coil U2-, a coil U3-, and a coil U4 +. The winding start of the coil U1 + is connected to a U terminal which is one of the power supply terminals 4. The winding end of the coil U4 + is connected to the neutral point terminal 5 (neutral point).

  Coil U2- and coil U3- indicate that the coil U1 +, coil U4 + and the winding direction to teeth 1a are different. Details will be described later. Hereinafter, the same applies to the V phase and the W phase.

  The V phase includes a coil V1-, a coil V2 +, a coil V3 +, and a coil V4-. The winding start of the coil V <b> 1-is connected to a V terminal that is one of the power supply terminals 4. The winding end of the coil V4- is connected to the neutral point terminal 5 (neutral point). The V terminal is provided on the outer wall of the insulating portion 3 of the adjacent tooth 1a in the counterclockwise direction of the tooth 1a provided with the U terminal.

  The W phase includes a coil W1 +, a coil W2-, a coil W3-, and a coil W4 +. The winding start of the coil W1 + is connected to the W terminal which is one of the power supply terminals 4. The winding end of the coil W4 + is connected to the neutral point terminal 5 (neutral point). The W terminal is provided on the outer wall of the insulating portion 3 of the adjacent tooth 1a in the counterclockwise direction of the tooth 1a provided with the V terminal.

  As shown in the connection diagram of the stator windings of the stator 200 of the electric motor in FIG. 28, the stator windings of the stator 200 of the electric motor are connected to a single Y. That is, the U-phase coil U1 +, the coil U2-, the coil U3-, and the coil U4 + are connected in series. Further, a V-phase coil V1-, a coil V2 +, a coil V3 +, and a coil V4- are connected in series. Further, a W-phase coil W1 +, a coil W2-, a coil W3-, and a coil W4 + are connected in series. Then, the winding ends of the coil U4 +, the coil V4-, and the coil W4 + are connected to the neutral point N.

  The stator winding connection method will be further described with reference to a development view showing the stator winding connection method of the stator 200 of the electric motor shown in FIG.

  As in the first embodiment, here, the first phase is called the U phase, the second phase is called the V phase, and the third phase is called the W phase. In the first U phase, the first coil U1 + is formed on the fifth tooth 1a from the left. The coil U2- is formed in the sixth tooth 1a from the adjacent left. The coil U3- is formed on the eleventh tooth 1a from the left. The coil U4 + is formed on the twelfth tooth 1a from the left (the first tooth 1a from the right). Coil U1 + and coil U4 + are both wound around teeth 1a in the clockwise direction. Coil U2- and coil U3- are both wound around teeth 1a in a counterclockwise direction.

  In the second V-phase, the first coil V1- is formed in the third tooth 1a from the left. The coil V2 + is formed on the fourth tooth 1a from the left adjacent to the coil V2 +. The coil V3 + is formed on the ninth tooth 1a from the left. The coil V4- is formed on the tenth tooth 1a from the adjacent left (second tooth 1a on the right side). Both the coil V1- and the coil V4- are wound around the tooth 1a in the counterclockwise direction. Both the coil V2 + and the coil V3 + are wound around the tooth 1a in the clockwise direction.

  In the third W phase, the first coil W1 + is formed on the left first tooth 1a. The coil W2- is formed on the second tooth 1a from the adjacent left. The coil W3- is formed on the seventh tooth 1a from the left. The coil W4 + is formed on the eighth tooth 1a from the left adjacent to the coil W4 +. Both the coil W1 + and the coil W4 + are wound around the tooth 1a in the clockwise direction. Coil W2- and coil W3- are both wound around teeth 1a in a counterclockwise direction.

  As already described, the winding start of the coil U1 +, the coil V1-, and the coil W1 + is connected to the power supply terminal 4, respectively. The winding ends of the coil U4 +, the coil V4-, and the coil W4 + are connected to the neutral point terminal 5, respectively.

  This embodiment is characterized in that a rectangular wire is used for the power supply terminal 4 and the neutral point terminal 5. Since the power supply terminal 4 and the neutral point terminal 5 are the same as those in the first embodiment, description thereof is omitted.

  The present embodiment is characterized in that a substrate (not shown) can be shared with the stator 100 of the 12-slot / 8-pole motor of the first embodiment.

  The configuration of the strip-shaped stator core 1 provided with the insulating portion 3 will be described with reference to FIGS. In FIG. 30, the band-shaped stator core 1 provided with the insulating portion 3 is viewed horizontally from the teeth 1a side. There are 12 teeth 1a, but each is numbered. # 1, # 2,... # 12 in order from the left side.

  However, since FIG. 30 looks at the whole teeth 1a of # 1 to # 12 and is fine and difficult to understand, these are divided into three and the teeth 1a of # 1 to # 4 are divided into FIG. 31, # 5 to # 8. The teeth 1a of FIG. 32 are enlarged, and the teeth 1a of # 9 to # 12 are enlarged and shown in FIG.

  A third-phase (W-phase) coil W1 + is formed on the # 1 tooth 1a to which the insulating portion 3 is applied. As shown in FIGS. 30 and 31, a three-phase crossover lead-out portion 26 is formed at the left end of the outer wall of the insulating portion 3 of the # 1 tooth 1a. From the third-phase crossover lead-out portion 26 on the outer wall of the insulating portion 3 of the # 1 tooth 1a, the crossover wire 2c of the coil W1 + → the coil W2- is drawn out to the outer peripheral side of the stator core 1.

  The third phase (W phase) is composed of a coil W1 +, a coil W2-, a coil W3-, and a coil W4 +, which are wound with one continuous magnet wire. A magnet wire extending over the coil W1 + → coil W2-, coil W2- → coil W3-, coil W3- → coil W4 +, coil W4 → neutral point terminal is called a crossover. In this specification, the third-phase (W-phase) crossover is defined as a crossover 2c. Similarly, the first-phase (U-phase) crossover is defined as a crossover 2a, and the second-phase (V-phase) crossover is defined as a crossover 2b (see FIG. 34).

  A pin 70 for assembling a substrate (not shown) is provided on the right end of the outer wall of the insulating portion 3 of the # 1 tooth 1a. A three-phase crossover entrance 28 is formed on the left side of the pin 70.

  A third-phase (W-phase) W2-coil is formed on the # 1 tooth 1a to which the insulating portion 3 is applied. On the outer wall of the insulating portion 3 of the # 2 tooth 1a, a power supply terminal 4 is inserted into a square hole at a substantially central portion of the axial end surface. The power terminal 4 is inserted into the square hole of the insulating portion 3 so that the folded portion 4a is on the left side. As will be described later, the power supply terminal 4 is hooked with a magnet wire that becomes the winding start of the third-phase (W-phase) coil W1 +.

  Also, a third-phase winding start bald pin 60 is formed on the leftmost side of the outer wall of the insulating portion 3 of the # 2 tooth 1a. As will be described later, a third-phase (W-phase) magnet wire end is tangled on the bald pin 60 from the beginning of the third-phase winding.

  A third-phase crossover lead-out portion 26 is formed at the right end of the outer wall of the insulating portion 3 of the # 2 tooth 1a.

  Also, a three-phase crossover entrance 28 is formed on the outer wall of the insulating portion 3 of the # 2 tooth 1a on the right side of the substantially central square hole into which the power terminal 4 is inserted.

  A second-phase (V-phase) V1-coil is formed on the # 3 tooth 1a to which the insulating portion 3 is applied. A power supply terminal 4 is inserted into a square hole provided at a substantially central portion of the axial end surface of the outer wall of the insulating portion 3. The power terminal 4 is inserted into a square hole in the outer wall of the insulating portion 3 so that the folded portion 4a is on the left side. The power supply terminal 4 is hooked with a magnet wire that is the end of winding of the second-phase (V-phase) coil V1-.

  As in the first embodiment, the first-phase (U-phase) and second-phase (V-phase) windings are continuous without cutting the magnet wire. The first-phase (U-phase) coils are formed in order from left to right in FIG. The second-phase (V-phase) coil is formed in order from the right to the left in FIG. 30 starting from the neutral point. Therefore, the second-phase (V-phase) coil V1- formed on the # 3 tooth 1a provided with the insulating portion 3 is the last-formed coil as the second-phase (V-phase) winding. Become. Therefore, the magnet wire that is the end of the winding of the second-phase (V-phase) coil V <b> 1 is hooked on the power supply terminal 4 that is inserted into the square hole of the outer wall of the insulating portion 3 of the # 3 tooth 1 a.

  In addition, a bald pin 24 is formed on the outermost wall of the insulating portion 3 of the # 3 tooth 1a at the leftmost end of the second phase winding. As will be described later, the end (winding end) of the second-phase (V-phase) magnet wire is wound on the bald pin 24 from the end of the second-phase winding.

  Further, a third-phase crossover pin 27 is formed on the rightmost side of the outer wall of the insulating portion 3 of the # 3 tooth 1a. As will be described later, a third-phase (W-phase) crossover wire 2c (coil W2- → coil W3-) is tangled on the third-phase crossover pin 27.

  The left side of the third phase crossover pin 27 is the second phase crossover line entrance 21. A second-phase (V-phase) crossover wire 2b (V2 + → V1-) is drawn into the coil V1- from the second-phase crossover wire entrance 21.

  The second-phase (V-phase) V2 + coil is formed on the # 4 tooth 1a to which the insulating portion 3 is applied.

  The power supply terminal 4 is inserted into a square hole provided at a substantially central portion of the axial end surface of the outer wall of the insulating portion 3 of the # 4 tooth 1a. The power terminal 4 is inserted into the square hole of the insulating portion 3 so that the folded portion 4a is on the left side.

  The power supply terminal 4 is hooked with a magnet wire that becomes the winding start of the first-phase (U-phase) coil U1.

  Further, a first-phase winding start bald pin 10 is formed on the leftmost side of the outer wall of the insulating portion 3 of the # 4 tooth 1a. As will be described later, the terminal of the first phase (U phase) magnet wire is wound around the first pin of the first phase winding.

  The outer wall of the insulating portion 3 of the # 4 tooth 1a is provided with a protrusion 45 extending in the circumferential direction at the left end. As will be described later, the winding of the first phase (U phase) is performed at least once on the winding pin 10 from the beginning of the first phase winding, hooked on the folded portion 4a of the power supply terminal 4, and then pulled on the protrusion 45. After being hung, the wire is routed to the outside of the outer wall of the insulating portion 3, and the step closest to the end face of the stator core 1 is routed to the # 1 tooth 1a as a crossover 2a.

  The outer wall of the insulating portion 3 of the # 4 tooth 1a is provided with a second-phase crossover lead-out portion 19 at the right end thereof. In addition, an intermediate partition pin 80 is provided to the left of the second phase crossover lead-out portion 19, and a second phase crossover line entrance 21 is provided to the left of the intermediate partition pin 80.

  The second-phase crossover wire entrance 21 has a magnet wire entering from the second-phase crossover wire entrance 21 and a second-phase crossover wire entrance 21 by making the height of the wire diameter of the magnet wire approximately lower than that of the second-phase crossover wire lead-out portion 19. The contact with the magnet wire coming out from the crossover lead-out portion 19 is relaxed.

  A first-phase (U-phase) U1 + coil is formed on the # 5 tooth 1a to which the insulating portion 3 is applied.

  A pin 70 for assembling a substrate (not shown) is provided at a substantially central portion of the outer wall of the insulating portion 3 of the # 1 tooth 1a.

  A partition pin 80 is provided on the left side of the pin 70. On the right side of the middle partition pin 80, a first-phase crossover line entrance 14 into which the first-phase (U-phase) crossover line 2a enters is provided. Further, a first-phase connecting wire lead-out portion 11 from which a first-phase (U-phase) connecting wire 2 a is drawn is formed on the left side of the partitioning pin 80.

  Further, a third-phase crossover pin 27 is formed at the right end of the outer wall of the insulating portion 3 of the # 5 tooth 1a. As will be described later, a third-phase (W-phase) crossover wire 2c (coil W2- → coil W3-) is tangled on the third-phase crossover pin 27.

  A first-phase (U-phase) coil U <b> 2-is formed on the # 1 tooth 1 a provided with the insulating portion 3.

  The insulating portion 3 of the # 6 tooth 1a includes a second-phase jumping pin 20 at the left end and a notch 52 on the right side of the second-phase jumping pin 20.

  Further, the right side of the second-phase crossover pin 20 is a first-phase crossover entrance 14 where the first-phase (U-phase) crossover 2a enters. Also, a first-phase crossover lead portion 11 from which a first-phase (U-phase) crossover wire 2a is drawn is formed at the left end of the outer wall of the insulating portion 3 of the # 1 tooth 1a.

  A third-phase (W-phase) coil W3- is formed on the # 7 tooth 1a to which the insulating portion 3 is applied.

  A pin 70 for assembling a substrate (not shown) is provided at the center of the outer wall of the insulating portion 3 of the # 1 tooth 1a. A three-phase crossover entrance 28 is formed on the left side of the pin 70. Further, a three-phase crossover lead portion 26 is formed on the right side of the pin 70.

  Further, a first-phase jumping pin 12 is provided at the right end of the outer wall of the insulating portion 3 of the # 1 tooth 1a. As will be described later, the connecting wire 2a of the coil U2-> coil U3- is tangled to the first-phase crossover pin 12.

  Further, a cutout 50 is provided on the outer wall of the insulating portion 3 of the # 1 tooth 1a on the left side of the first phase crossover pin 12. The first-phase crossover lead portion 11 (# 5 teeth 1a), the first-phase crossover wire inlet 14 (for example, # 6 teeth 1a), and the notch 50 are formed from the axial end surface of the stator core 1. The height is almost the same.

  Further, the outer wall of the insulating portion 3 of the # 7 tooth 1a is provided with a second-phase jumping pin 20 at the left end and a notch 52 beside the second-phase jumping pin 20.

  A third-phase (W-phase) coil W4 + is formed on the # 8 tooth 1a to which the insulating portion 3 is applied.

  A partition pin 80 is provided near the center of the outer wall of the insulating portion 3 of the # 1 tooth 1a. A three-phase crossover line entrance 28 is formed on the right side of the partition pin 80. A third-phase crossover lead-out portion 26 is formed on the left side of the partition pin 80.

  The three-phase crossover wire inlet 28 has a magnet wire that enters from the three-phase crossover wire inlet 28 and a third phase by making the height of the wire diameter of the magnet wire approximately lower than the three-phase crossover wire lead-out portion 26. The contact with the magnet wire coming out from the crossover lead-out portion 26 is relaxed.

  Further, a first-phase jumping pin 12 is provided at the right end of the outer wall of the insulating portion 3 of the # 8 tooth 1a. As will be described later, the connecting wire 2a of the coil U2-> coil U3- is tangled to the first-phase crossover pin 12. A notch 50 is provided on the left side of the first phase crossing pin 12.

  Further, a second-phase jumping pin 20 is provided at the left end of the outer wall of the insulating portion 3 of the # 1 tooth 1a, and a notch 52 is provided beside the second-phase jumping pin 20.

  A second-phase (V-phase) coil V3 + is formed on the # 1 tooth 1a to which the insulating portion 3 is applied.

  A partition pin 80 is provided near the center of the outer wall of the insulating portion 3 of the # 1 tooth 1a. A second-phase crossover lead-out portion 19 is formed on the right side of the middle partition pin 80. In addition, a second-phase crossover entrance 21 is formed on the left side of the partition pin 80.

  The second-phase crossover wire entrance 21 has a magnet wire entering from the second-phase crossover wire entrance 21 and a second-phase crossover wire entrance 21 by making the height of the wire diameter of the magnet wire approximately lower than that of the second-phase crossover wire lead-out portion 19. The contact with the magnet wire coming out from the crossover lead-out portion 19 is relaxed.

  Further, a first-phase jumping pin 12 is provided at the right end of the outer wall of the insulating portion 3 of the # 1 tooth 1a. As will be described later, the connecting wire 2a of the coil U2-> coil U3- is tangled to the first-phase crossover pin 12. A notch 50 is provided on the left side of the first phase crossing pin 12.

  A second-phase (V-phase) coil V4- is formed on the # 10 tooth 1a to which the insulating portion 3 is applied.

  A neutral point terminal 5 is inserted into a square hole provided at a substantially central portion of the axial end face of the outer wall of the insulating portion 3 of the # 10 tooth 1a.

  Also, a bald pin 16 is provided at the right end of the outer wall of the insulating portion 3 of the # 1 tooth 1a at the end of the first phase winding. As will be described later, the winding end of the first phase (U phase) is tangled to the bald pin 16 from the end of the first phase winding.

  Also, a third-phase winding end bald pin 29 is provided at the left end of the outer wall of the insulating portion 3 of the # 10 tooth 1a. As will be described later, after the end of the third phase (W-phase) is wound more than once on the bald pin 29 from the end of the third phase, it is hung on the second folded portion 5b of the neutral point terminal 5. Further, the third phase winding is once again pulled back to the bald pin 29, and the third phase winding is completed by winding once or more around the top of the bald pin 29 from the third phase winding end.

  Further, the outer wall of the insulating portion 3 of the # 1 tooth 1a is provided with a second-phase crossover lead portion 19 on the right side of the bald pin 29 at the end of the third-phase winding.

  A first-phase (U-phase) coil U3- is formed on the # 11 tooth 1a to which the insulating portion 3 is applied.

  A pin 70 for assembling a substrate (not shown) is provided in the center of the outer wall of the insulating portion 3 of the # 1 tooth 1a. On the left side of the pin 70, there is provided a first-phase crossover wire entrance 14 into which the first-phase (U-phase) crossover wire 2a enters.

  Further, on the right side of the pin 70, a first-phase crossover lead portion 11 from which the first-phase (U-phase) crossover wire 2a is drawn is formed. From the first-phase crossover lead portion 11 of the insulating portion 3 of the # 1 tooth 1a, the crossover wire 2a of the coil U3- → coil U4 + is drawn to the outer peripheral side of the stator core 1.

  The first-phase (U-phase) coil U4 + is formed in the # 12 tooth 1a to which the insulating portion 3 is applied.

  At the right end of the outer wall of the insulating portion 3 of the # 12 tooth 1a, there is provided a first-phase crossover wire entrance 14 into which the first-phase (U-phase) crossover wire 2a enters.

  At the left end of the outer wall of the insulating portion 3 of the # 12 tooth 1a, a first-phase winding end drawing portion 15 is provided. As will be described later, the magnet wire after the last coil U4 of the first phase is formed is drawn from the lead-out portion 15 at the end of the first phase to the outer peripheral side of the stator core 1.

  The present embodiment is characterized in that a substrate (not shown) can be shared with the stator 100 of the 12-slot / 8-pole motor of the first embodiment, which will be described in detail.

In FIG. 30, the components related to the mounting of the substrate are as follows.
(1) Pin 70 of insulating portion 3 of tooth 1a of # 1;
(2) The power supply terminal 4 of the insulating part 3 of the tooth 1a of # 2;
(3) The power supply terminal 4 of the insulating part 3 of the tooth 1a of # 3;
(4) The power supply terminal 4 of the insulating part 3 of the tooth 1a of # 4;
(5) Pin 70 of insulating part 3 of tooth 1a of # 5;
(6) Pin 70 of insulating portion 3 of tooth 1a of # 7;
The pin 70 of the insulating part 3 of the # 1 tooth 1a is not used for mounting the board.

In FIG. 9 of the first embodiment, the components related to the mounting of the substrate are as follows.
(1) Pin 70 of the insulating portion 3 of the tooth 1a of # 12;
(2) The power supply terminal 4 of the insulating part 3 of the tooth 1a of # 1;
(3) The power supply terminal 4 of the insulating part 3 of the tooth 1a of # 2;
(4) The power supply terminal 4 of the insulating part 3 of the tooth 1a of # 3;
(5) Pin 70 of insulating part 3 of tooth 1a of # 4;
(6) The pin 70 of the insulating part 3 of the tooth 1a of # 6;
The pin 70 of the insulating portion 3 of the # 1 tooth 1a is not used for mounting the board.

  As described above, in the first embodiment and the second embodiment, the arrangement of components related to the mounting of the board is shifted by one tooth 1a, and the arrangement of the power supply terminal 4 and the pin 70 is the same. is there.

  Therefore, the 12-slot / 8-pole motor stator 100 of the first embodiment and the 12-slot / 10-pole motor stator 200 of the second embodiment have an effect that the board shape can be shared.

  The first U phase winding procedure will be described with reference to FIGS. 34 (a), 35, and 36. FIG. As shown in FIG. 34 (a), the coil U1 + formed at the beginning of the first phase has a fifth # 5 tooth 1a from one end of the stator core 1 (the left end in FIG. 34 (a)). A magnet wire is wound around the insulating portion 3 and formed.

  As shown in FIG. 35, first, the end of the magnet wire is wound around the first-phase winding start pin 10 provided on the outer wall of the insulating portion 3 of the # 4 tooth 1a once or more times. Thereafter, a magnet wire (first phase winding start 9) that is the first phase winding is hooked on the folded portion 4a of the power supply terminal 4 that is inserted into the square hole provided on the outer wall of the insulating unit 3.

  Then, after being hooked on a protrusion 45 projecting in the circumferential direction (left side) formed at the left end of the outer wall of the insulating portion 3 of the # 4 tooth 1a, it is drawn to the outer peripheral side of the outer wall of the insulating portion 3 and fixed. The step closest to the axial end surface of the core 1 is routed to the # 1 tooth 1a as a crossover 2a.

  And it is drawn to the teeth 1a from the 1st-phase crossover entrance 14 provided on the outer wall of the insulating part 3 of the # 5 tooth 1a, and is wound around the # 5 tooth 1a a predetermined number of times in a clockwise direction (clockwise). And the first phase coil U1 + is formed.

  As in the first embodiment, the expression “the outer peripheral side of the insulating portion 3” is the outer peripheral side of the stator 200 of the electric motor after completion.

  After the coil U1 + is formed, the crossover wire 2a is drawn out from the first-phase crossover lead-out portion 11 of the outer wall of the insulating portion 3 to the outer peripheral side of the stator core 1.

  The connecting wire 2a crosses the outer peripheral side of the outer wall of the insulating portion 3 of the # 5 tooth 1a, and is routed to the tooth 1a from the first-phase connecting wire inlet 14 provided on the outer wall of the insulating portion 3 of the # 6 tooth 1a. , # 6 is wound a predetermined number of times counterclockwise (counterclockwise) to form a first-phase coil U2-

  After the coil U <b> 2-is formed, the crossover wire 2 a is drawn out from the first-phase crossover lead-out portion 11 of the outer wall of the insulating portion 3 to the outer peripheral side of the stator core 1.

  First phase crossover provided on the outer wall of the insulating portion 3 of the # 7 tooth 1a adjacent to the # 6 tooth 1a on which the first phase coil U2- is formed, on the opposite side of the crossover wire 2a crossing side. The connecting wire 2 a is tangled to the tangled pin 12 one or more times to form the tangled portion 13. From the curled portion 13, the connecting wire 2 a is again drawn to the outer peripheral side of the stator core 1.

  One or more crossovers to the first phase jumper pin 12 provided on the opposite side of the insulation wall 3 of the # 8 tooth 1a next to the # 7 tooth 1a to the side where the crossover 2a has crossed 2a is curled and forms a curled portion 13. From the curled portion 13, the connecting wire 2 a is again drawn to the outer peripheral side of the stator core 1. In FIG. 36, the tooth 1a of # 8 is omitted, so see FIG.

  One or more crossovers to the first phase crossover pin 12 provided on the opposite side of the insulation wall 3 of the # 9 tooth 1a next to the # 8 tooth 1a to the side where the crossover 2a has crossed 2a is curled and forms a curled portion 13. From the curled portion 13, the connecting wire 2 a is again drawn to the outer peripheral side of the stator core 1.

  The connecting wire 2a drawn to the outer peripheral side of the stator core 1 crosses the outer peripheral side of the outer wall of the insulating portion 3 of the # 1 tooth 1a.

  The connecting wire 2a that has crossed the outer peripheral side of the outer wall of the insulating portion 3 of the # 1 tooth 1a is drawn from the first-phase connecting wire inlet 14 provided on the outer wall of the insulating portion 3 of the # 11 tooth 1a to the tooth 1a. Turned and wound counterclockwise (counterclockwise) a predetermined number of times on the teeth 11a of # 11 to form a first-phase coil U3-.

  The notch 50 of the insulating portion 3 on the left side of the first-phase crossover wire inlet 14, the first-phase crossover lead-out portion 11, and the first-phase crossover pin 12 is high from the axial end surface of the stator core 1. Are almost the same.

  The first phase connecting wire 2a drawn from the outer wall of the outer wall of the insulating portion 3 of the # 1 tooth 1a to the outer peripheral side is the first phase provided on the outer wall of the insulating portion 3 of the # 1 tooth 1a. It is drawn from the crossover entrance 14 to the tooth 1a, and wound around the # 1 tooth 1a a predetermined number of times in a clockwise direction (clockwise) to form a first-phase coil U4 +.

  The magnet wire after the coil U4 + which is the last of the first phase is formed is the stator core 1 from the first phase winding end leading portion 15 provided on the outer wall of the insulating portion 3 of the tooth 1a where the coil U4 + is formed. It is pulled out to the outer peripheral side. The first phase is pulled in the direction opposite to the direction in which the crossover wire 2a is routed (leftward in FIG. 36), and is led to the outer wall of the insulating portion 3 provided in the # 1 tooth 1a. End of volume.

  At this time, by setting the height of the lead-out portion 15 at the end of the first phase winding to be higher than the height of the first folded portion 5a and the second folded portion 5b of the neutral point terminal 5, the neutral point terminal 5 As a result, the magnet wire can be easily routed, and productivity and manufacturing quality can be improved.

  Hereinafter, the winding procedure of the second phase (V phase) will be described with reference to FIGS. 34B and 37 to 39. At the end of the first phase winding, the first phase winding end tapping pin 16 provided at the right end of the outer wall of the insulating portion 3 of the # 10 tooth 1a where the first coil V4- of the second phase is formed is once or more. It is made fun.

  After being hooked on the first folded portion 5a of the neutral point terminal 5 assembled to the outer wall of the insulating portion 3 of the # 10 tooth 1a in which the coil V4- is formed, it is drawn to the # 10 tooth 1a. Then, the second phase volume starts 18.

  The first coil V4- of the second phase is hooked on the first turn-up portion 5a of the neutral point terminal 5, and is continuously wound clockwise (clockwise) on the tooth 1a of # 10 without cutting the magnet wire. ) Is wound a predetermined number of times.

  After the first coil V4- of the second phase is formed, the second-phase crossover wire 2b is drawn out from the second-phase crossover lead-out portion 19 to the outer peripheral side of the stator core 1.

  The second-phase connecting wire 2b is routed from the second-phase connecting wire inlet 21 provided on the outer wall of the insulating portion 3 of the # 9 tooth 1a to the # 9 tooth 1a. A # 9 tooth 1a is wound a predetermined number of times counterclockwise (counterclockwise) to form a second-phase coil V3 +.

  After the first coil V3 + of the second phase is formed, the second-phase crossover wire 2b is drawn from the second-phase crossover lead-out portion 19 to the outer peripheral side of the stator core 1.

  At this time, the second-phase crossover line 2b that enters the second-phase crossover-line entrance 21 and the second-phase crossover line 2b that exits from the second-phase crossover lead-out portion 19 intersect each other.

  The second-phase crossover wire entrance 21 is provided with the partition pin 80, and the height of the wire diameter of the magnet wire is made lower than the second-phase crossover wire lead-out portion 19 by about the diameter of the second-phase crossover wire entrance. The contact between the magnet wire entering from 21 and the magnet wire coming out from the second-phase crossover lead-out portion 19 is relaxed.

  The second-phase connecting wire 2b extends in the direction opposite to the direction in which the first-phase connecting wire 2a is routed (leftward in FIG. 38), and is connected to the outer wall of the insulating portion 3 of the tooth 1a of # 8. The tangled portion 51 is formed by being tangled one or more times by the second phase crossover pin 20 provided on the opposite side to the side where the crossover line 2b of the phase has crossed.

  The second phase crossover 2b tangled to the second phase crossover pin 20 of the outer wall of the insulating portion 3 of the # 1 tooth 1a is the second phase of the outer wall of the insulating portion 3 of the # 7 tooth 1a. The tangled portion 51 is formed by being tangled at least once by the second phase crossover pin 20 provided on the side opposite to the side where the crossover wire 2b has crossed.

  The second phase crossover 2b tangled to the second phase crossover pin 20 of the outer wall of the insulating portion 3 of the # 1 tooth 1a is the second phase of the outer wall of the insulating portion 3 of the # 1 tooth 1a. The tangled portion 51 is formed by being tangled at least once by the second phase crossover pin 20 provided on the side opposite to the side where the crossover wire 2b has crossed.

  The second-phase connecting wire 2b drawn to the outer peripheral side of the stator core 1 crosses the outer peripheral side of the outer wall of the insulating portion 3 of the # 1 tooth 1a in the left direction.

  As shown in FIG. 39, the second-phase connecting wire 2b is routed from the second-phase connecting wire inlet 21 provided on the outer wall of the insulating portion 3 of the # 4 tooth 1a to the # 4 tooth 1a. A second-phase coil V2 + is formed by winding the # 4 tooth 1a counterclockwise a predetermined number of times (counterclockwise).

  After the second-phase coil V2 + is formed, the second-phase crossover wire 2b is drawn from the second-phase crossover lead-out portion 19 to the outer peripheral side of the stator core 1.

  At this time, the second-phase crossover line 2b that enters the second-phase crossover-line entrance 21 and the second-phase crossover line 2b that exits from the second-phase crossover lead-out portion 19 intersect each other.

  A partition pin 80 is provided between the second-phase crossover wire inlet 21 and the second-phase crossover wire lead-out portion 19, and the second-phase crossover wire inlet 21 is substantially magnet than the second-phase crossover wire lead-out portion 19. By reducing the height of the wire about the wire diameter, it becomes possible to alleviate the contact between the magnet wire entering from the second-phase crossover wire entrance 21 and the magnet wire coming out from the second-phase crossover wire lead-out portion 19, Can be improved.

  After the second-phase coil V2 + is formed, the second-phase crossover wire 2b is drawn from the second-phase crossover lead-out portion 19 to the outer peripheral side of the stator core 1.

  At this time, the second-phase connecting wire 2b is routed to the second-stage height position from the end face of the stator core 1 (separated by the protrusion 8 (FIG. 25)). Similarly to the first phase, the second-phase crossover wire entrance 21, the second-phase crossover lead-out portion 19, and the notch 52 on the outer wall of the insulating portion 3 beside the second-phase crossover pin 20 are # Since the notch on the side of the second phase crossover pin 20 provided on the outer wall of the insulating portion of the 6 teeth 1a becomes the first phase crossover line entrance 14, from the second phase crossover provided on the outer wall of the insulating portion of the # 6 tooth 1a. The height from the axial end surface of the stator core 1 is substantially the same except for the notch beside the flange pin 20.

  The second-phase connecting wire 2b is routed from the second-phase connecting wire inlet 21 provided on the outer wall of the insulating portion 3 of the # 3 tooth 1a to the tooth 1a. A second-phase coil V1- is formed by winding it clockwise (clockwise) a predetermined number of times around the # 1 tooth 1a.

  The magnet wire after the last coil V1- of the second phase is formed is housed in the folded portion 4a of the power supply terminal 4 assembled on the outer wall of the insulating portion 3 around which the coil V1- is wound.

  The second-phase winding end 23 is wound around the bald pin 24 from the second-phase winding end, and the second-phase winding end 23 is formed and cut.

  As described above, since the first phase (U phase) and the second phase (V phase) can be continuously routed without being cut, the process of cutting the magnet wire is unnecessary, and the processing time is further increased. The processing cost can be reduced.

  Hereinafter, the winding procedure of the third phase (W phase) will be described with reference to FIG. 34 (c) and FIGS. The coil W1 + formed at the beginning of the third phase is formed on the leftmost # 1 tooth 1a.

  At the beginning of winding of the third phase (W phase), wind around the third phase winding start bald pin 60 provided on the outer wall of the insulating portion 3 of the # 2 tooth 1a at least once and pull it around the folded portion 4a of the power terminal 4 After being hung, the outer peripheral side of the pin 70 on the outer wall of the insulating portion 3 of the # 1 tooth 1a is drawn, and is drawn to the # 1 tooth 1a. Winding to form the coil W1 +.

  After the third-phase coil W1 + is formed, the third-phase crossover wire 2c is drawn out from the third-phase crossover lead-out portion 26 to the outer peripheral side of the stator core 1.

  The # 2 tooth 1a is routed to the # 1 tooth 1a through the three-phase crossover entrance 28 provided on the outer wall of the insulating portion 3 of the tooth 1a. Then, a third-phase coil W2- is formed by being wound around the # 1 tooth 1a a predetermined number of times in a counterclockwise direction (counterclockwise).

  After the third-phase coil W <b> 2-is formed, the third-phase jumper wire 2 c is drawn from the third-phase jumper wire lead-out portion 26 to the outer peripheral side of the stator core 1.

  Then, it is routed to the third phase crossover bald pin 27 provided on the outer wall of the insulating part 3 of the # 3 tooth 1a on the right side. The tangled portion 53 is formed by tangling at the third phase crossover pin 27 one or more times.

  The third-phase connecting wire 2c from the outer wall 53 of the insulating portion 3 of the # 3 tooth 1a crosses the outer peripheral side of the outer wall of the insulating portion 3 of the # 4 tooth 1a.

  As shown in FIG. 41, the crossover wire 2c is connected to the third phase jumper pin 27 provided on the opposite side of the outer wall of the insulating portion 3 of the # 1 tooth 1a to the side where the crossover wire 2c has crossed. The curled portion 53 is formed. From the curled portion 53, the connecting wire 2c is drawn out to the outer peripheral side of the stator core 1 again.

  Furthermore, the connecting wire 2c is tangled one or more times to the third-phase jumping pin 27 provided on the opposite side of the outer wall of the insulating portion 3 of the tooth 1a of # 6 to the side where the connecting wire 2c has crossed, A curled portion 53 is formed. From the curled portion 53, the connecting wire 2c is drawn out to the outer peripheral side of the stator core 1 again.

  The # 7 tooth 1a is routed to the tooth 1a from the three-phase crossover entrance 28 provided on the outer wall of the insulating portion 3. Then, the third-phase coil W3- is formed by being wound around the # 1 tooth 1a a predetermined number of times in a counterclockwise direction (counterclockwise).

  After the third-phase coil W3- is formed, the third-phase crossover wire 2c is drawn from the third-phase crossover lead-out portion 26 to the outer peripheral side of the stator core 1.

  The third-phase connecting wire 2c is routed from the third-phase connecting wire entrance 28 provided in the insulating portion 3 of the # 8 tooth 1a to the tooth 1a. Then, a third-phase coil W4 + is formed by winding it clockwise (clockwise) a predetermined number of times on the # 1 tooth 1a.

  After the third-phase coil W4 + is formed, the third-phase crossover wire 2c is drawn out from the third-phase crossover lead-out portion 26 to the outer peripheral side of the stator core 1.

  At this time, the third-phase crossover line 2c entering the third-phase crossover line entrance 28 and the third-phase crossover line 2c coming out from the third-phase crossover lead-out section 26 intersect.

  A partition pin 80 is provided between the three-phase crossover wire inlet 28 and the three-phase crossover wire lead-out portion 26, and the three-phase crossover wire inlet 28 is substantially magnet than the three-phase crossover wire lead-out portion 26. By reducing the height of the wire about the diameter of the wire, it becomes possible to alleviate the contact between the magnet wire entering from the three-phase crossover wire inlet 28 and the magnet wire coming out from the three-phase crossover wire lead-out portion 26. Can be improved.

  As shown in FIGS. 41 and 42, the third-phase connecting wire 2c drawn from the third-phase connecting wire lead-out portion 26 on the outer wall of the insulating portion 3 of the # 8 tooth 1a to the outer peripheral side of the stator core 1 is , Across the outer peripheral side of the outer wall of the insulating portion 3 of the tooth 1a of # 9.

  Further, the lead wire 29 is drawn from the end of the third phase winding of the outer wall of the insulating portion 3 of the # 10 tooth 1 a having the neutral point terminal 5. After tangling to the bald pin 29 from the end of the third phase winding one or more times, it is hung on the second folded portion 5b of the neutral point terminal 5, and then pulled back to the bald pin 29 again from the end of the third phase winding. At the end of the third phase winding, the winding pin 29 is wound at least once to complete the third phase winding, and the magnet wire is cut to complete the winding process.

  After the winding process is completed, the stator core 1 is bent in a predetermined direction into a substantially donut shape, and the stator core abutting portion 63 of the stator core 1 is welded and fixed by the weld 64 (see FIG. 43). ).

  At this time, the connecting wires 2a, 2b, 2c of each phase are held at predetermined positions by protrusions 8 (FIG. 25) provided on the outer peripheral side of the outer wall of the insulating portion 3, and the connecting wires 2a, 2b, 2c of each phase are The quality can be improved because no contact occurs. However, in FIG. 43, the connecting wires 2a, 2b, 2c are not shown.

  Further, by fusing the power supply terminal 4 and the neutral point terminal 5, the magnet wire, the power supply terminal 4 and the neutral point terminal 5 are electrically and mechanically joined to each other, and the stator 200 of the motor Become.

  In general, each phase has a neutral point terminal 5. On the other hand, in this embodiment, the number of parts can be reduced and the cost can be reduced by covering the neutral point terminal 5 with one.

  Here, the power supply terminal and the neutral point terminal can be reduced in cost because there is no loss of material for terminal manufacture by press punching, for example. Moreover, the cost can be reduced by using the same material (flat wire) as the power supply terminal 4 for supplying power to the neutral point terminal 5 for generating a neutral point.

  Further, as described above, the 12-slot / 8-pole motor stator 100 of the first embodiment and the 12-slot / 10-pole motor stator 200 of the second embodiment share a common board shape. There is an effect that can be done.

  In the second embodiment, for example, as shown in FIG. 34, the first-phase (U-phase) winding is wound from left to right in the order of coil U1 +, coil U2-, coil U3-, and coil U4 +. Without turning back at the neutral point, the second-phase (V-phase) winding is wound from right to left in the order of coil V4-, coil V3 +, coil V2 +, and coil V1- to cut the magnet wire. Independently of this, the winding of the third phase (W phase) was connected from the left to the right in the order of the coil W1 +, the coil W2-, the coil W3-, and the coil W4 +.

  It is also possible to perform winding of each phase in the reverse direction (mirror symmetry). In that case, although not shown, the first phase (U-phase) winding is wound from right to left in the order of coil U1 +, coil U2-, coil U3-, and coil U4 +, and folded at a neutral point without cutting. Then, the second-phase (V-phase) winding is wound from left to right in the order of coil V4-, coil V3 +, coil V2 +, and coil V1- to cut the magnet wire. Independently of this, the third-phase (W-phase) winding is connected to the neutral point of winding from the right to the left in the order of the coil W1 +, the coil W2-, the coil W3-, and the coil W4 +.

Embodiment 3 FIG.
44 and 45 are diagrams showing the third embodiment, FIG. 44 is a diagram showing the electric motor 300, and FIG. 45 is a diagram showing a manufacturing process of the electric motor 300.

  As shown in FIG. 44, the electric motor 300 includes a rotor 38, a bracket 39, a mold stator 40 obtained by molding the electric motor stators 100 and 200, a connection component 41 (substrate), and the like.

  As shown in FIG. 44, the connection parts 41 connected to the outside are assembled to the stators 100 and 200 of the electric motor of the present embodiment, and after mechanically and electrically joining, molding is performed. Thereafter, parts such as the rotor 38 and the bracket 39 are assembled to form the electric motor 300.

  By using the above-described high-quality and low-cost motor stators 100 and 200, a high-quality and low-cost motor 300 can be obtained.

FIG. 45 shows a manufacturing process of the electric motor 300.
(1) Step 1: A magnetic steel sheet is punched out and laminated to manufacture a band-shaped stator core 1.
(2) Step 2: The insulating part 3 is formed integrally with the stator core 1 using a thermoplastic resin. However, you may assemble | attach the teeth 1a after shaping | molding the insulation part 3. FIG. In parallel, the flat wire is bent to produce the power supply terminal 4 and the neutral point terminal 5.
(3) Step 3: Insert the power supply terminal 4 (three) and the neutral point terminal 5 (one) on the connection side of the outer wall of the insulating portion 3.
(4) Step 4: The band-shaped stator core 1 is reversely bent to a side opposite to a predetermined direction (direction in which the opening between the teeth 1a spreads).
(5) Step 5: The first phase (U phase) and the second phase (V phase) in the three-phase single Y connection are continuously wound without cutting the magnet wire.
(6) Step 6: Wind the third phase (W phase) in the same manner as the first phase.
(7) Step 7: The stator core 1 that has been reversely bent is bent forward.
(8) Step 8: The stator core butting portion 63 of the stator core 1 is welded.
(9) Step 9: Fusing the power supply terminal 4 and the neutral point terminal 5 is performed. In parallel, the wiring component 41 is manufactured.
(10) Step 10: The connecting component 41 is assembled and joined to the stator 100 of the electric motor.
(11) Step 11: The stators 100 and 200 of the electric motor are molded. In parallel, other parts such as the rotor 38 and the bracket 39 are manufactured.
(12) Step 12: Assemble the electric motor 300.

  By manufacturing the electric motor 300 in the manufacturing process shown in FIG. 45, the electric motor 300 can be manufactured with excellent productivity and efficiency.

  As described above, according to this embodiment, when using the stator 100 of the electric motor, the neutral wire terminal 5 of the neutral point terminal 5 is obtained by hooking the magnet wire to the routing protrusion 7 of the neutral point terminal 5. Since the magnet wire can be securely stored in the one folded portion 5a, the manufacturing quality can be improved.

  Further, when the stator 100 of the motor is used, the coil V4 formed at the beginning of the second phase is adjacent to the coil coil U4 formed at the end of the first phase, so that the winding equipment is predetermined. Since the movement distance to the position is minimized, the machining time can be reduced, and the machining cost can be reduced.

  In addition, since the first phase and the second phase can be continuously routed without cutting, there is no need to cut the magnet wire, and the processing time can be reduced, reducing processing costs. Can be planned.

  Further, when the stator 100 of the electric motor is used, the coil W1 formed at the beginning of the third phase is adjacent (right adjacent) to the coil V1 formed at the end of the second phase. Accordingly, the moving distance to the predetermined position of the winding equipment is minimized. Therefore, the processing time can be reduced, and the processing cost can be reduced.

  In general, the neutral point terminal 5 is provided for each phase. However, in the present embodiment, by providing the neutral point terminal 5 with one, the number of parts can be reduced and the cost can be reduced. .

  In addition, the power supply terminal and the neutral point terminal can be reduced in cost because there is no loss of material, for example, in the manufacture of terminals by press punching. Furthermore, the cost can be reduced by making the neutral point terminal 5 for generating the neutral point the same material (flat wire) as the power supply terminal 4 for supplying power.

  The substrate manufacturing mold can be shared between the 12-slot / 8-pole motor stator 100 of the first embodiment and the 12-slot / 10-pole motor stator 200 of the second embodiment. By sharing and manufacturing by changing the arrangement of electronic components and different parts of the wiring pattern, it is possible to reduce the cost of the substrate in accordance with the reduction of the initial cost. Furthermore, the process of assembling the lead wires and the like on the board and the process of assembling the board on the stator can be made common, so for example, if both specifications need to be produced on the same production line, the manufacturing cost can be reduced. Can be planned.

  Further, by using the stator 100 of the motor with good quality and reduced cost, the motor 300 with good quality and low cost can be obtained.

  In addition, by manufacturing the electric motor 300 in the manufacturing process shown in FIG. 45, the electric motor 300 can be manufactured with excellent productivity and efficiency.

Embodiment 4 FIG.
FIG. 46 is a diagram showing the fourth embodiment, and is a diagram showing a configuration of the air conditioner 400. As shown in FIG. 46, the air conditioner 400 includes an indoor unit 42 and an outdoor unit 43 connected to the indoor unit 42. The outdoor unit 43 includes a blower 44. The indoor unit 42 also includes a blower (not shown).

  The quality of the air conditioner 400 can be improved by using the high-quality electric motor 300 of the third embodiment as the blower motor that is the main part of the air conditioner 400 for the indoor unit 42 and the outdoor unit 43.

Embodiment 5 FIG.
FIG. 47 shows the fifth embodiment and is a cross-sectional view of the pump 500.

The pump 500 shown in FIG. 47 has the following configuration. That is, the pump 500
(A) The wiring component 41 (substrate) is assembled to the stators 100 and 200 of the electric motor, and the resin-molded product-like partition wall 140 that separates the water in the pump 500 from the stator is integrally molded. A stator 160 for a pump motor;
(B) A shaft 96 made of SUS, ceramic, or the like, with one end inserted into the shaft support portion provided in the bowl-shaped partition wall 140 and the other end supported by the shaft support portion of the casing 90 of the resin molded product; ,
(C) A rotor 150 in which a ring-shaped heat-resistant water-made magnet 150a and a cylindrical sleeve 150b disposed inside the magnet 150a are integrally formed of a thermoplastic resin such as PPE (polyphenylene ether). When,
(D) an impeller 161 of a resin molded product that is joined to the rotor 150 by ultrasonic welding or the like and is rotatably installed around the shaft 96;
(E) a thrust bearing 95 made of SUS, ceramic, or the like, which is installed with a predetermined gap on both end faces of the sleeve 150b;
And the casing 90, the stator 160 of the pump motor, and the foot plate 93 are fastened together by the tapping screws 91 and the like.

  As described above, by using the stators 100 and 200 of the electric motor for the pump 500, the cost and quality of the pump 500 can be reduced.

  DESCRIPTION OF SYMBOLS 1 Stator iron core, 1a teeth, 1a-1 tip part, 1b Core back, 1c Thin connection part, 1d Core end surface, 2 Coil, 2a Crossover line, 2b Crossover line, 2c Crossover line, 3 Insulation part, 4 Power supply terminal, 4a folded portion, 4b insertion portion, 5 neutral point terminal, 5a first folded portion, 5b second folded portion, 5b-1 tip portion, 5c opening portion, 5d insertion portion, 7 routing projection, 8 projection, 9 First phase winding start 10 First phase winding start bald pin, 11 First phase crossover lead section, 12 First phase crossover pin, 13 Bending section, 14 First phase crossover entrance, 15 1 End section of phase winding, 16 Karage pin at the end of first phase winding, 18 Beginning of second phase winding, 19 Second phase crossover lead section, 20 Second phase crossover pin, 21 Second phase crossover entry, 22 End of second phase volume, 23 End of phase winding, 24 End of second phase winding, 25 Start of third phase winding, 26 Third phase crossover lead section, 27 Third phase crossover pin, 28 Third phase crossover entry, 29 Three Spinning pin at the end of the phase winding, 31 Stator core butting portion, 32 Welded portion, 33 Square terminal, 34 Lateral bending hook portion, 35 Joint portion, 36 Winding start pin, 37 Winding pin, 38 Rotation Child, 39 bracket, 40 mold stator, 41 connection parts, 42 indoor unit, 43 outdoor unit, 44 blower, 45 protrusion, 50 notch, 51 bald part, 52 notch, 53 bald part, 60 third phase Winding-up pin, 63 Stator core butt, 64 weld, 70 pin, 80 partition pin, 90 casing, 91 tapping screw, 93 foot plate, 95 thrust bearing, 96 Shift, 97 O-ring, 100 motor stator 140 Wan-shaped partition, 150 rotor, 150a magnets, 150b sleeve, the motor stator for 160 pumps, 161 impeller, 300 motor, 400 air conditioner, 500 pump.

Claims (9)

A stator iron core having 12 teeth that is laminated by punching electromagnetic steel sheets into a strip shape, an insulating portion applied to the teeth of the stator core, and a direct concentrated winding method on the teeth provided with the insulating portion A stator of a 12-slot 10-pole motor with a three-phase single Y-connected winding applied by
All the connecting wires of the winding are arranged on the connection side of the outer wall of the insulating portion, and the connecting wire is arranged in the first stage closest to the axial end surface of the stator core. And the second-phase winding arranged in the second stage is folded at the neutral point terminal and wound without being cut, and apart from this, the jumper wire is the most on the axial end surface of the stator core. Wind the third phase winding arranged in the far third stage independently,
Forming three power supply terminals for supplying power to the winding of the three-phase single Y connection inserted on the connection side of the insulating portion and the neutral point terminal by bending a square line;
When the stator of the motor is viewed in plan, the first to third phase coils of the three-phase single Y connection are connected in a clockwise direction with respect to the power supply terminals, and are band-shaped fixed with the insulating portion applied. When the core is viewed from the teeth side, the first-phase to third-phase windings, the three power supply terminals, and the neutral point terminals are arranged as follows. stator,
a. The first phase winding includes the following coils;
(1) A coil U1 + wound around the teeth in the clockwise direction when viewed from the teeth side, on the fifth tooth from the left of the strip-shaped stator core provided with the insulating portion;
(2) a coil U2- wound around the teeth in a counterclockwise direction when viewed from the teeth side, on the sixth tooth from the left of the strip-shaped stator core provided with the insulating portion;
(3) A coil U3- wound around the teeth counterclockwise as viewed from the teeth side, on the eleventh tooth from the left of the band-shaped stator core provided with the insulating portion;
(4) A coil U4 + wound around the tooth in the clockwise direction as viewed from the tooth side, on the twelfth tooth from the left of the strip-shaped stator core provided with the insulating portion;
b. The second phase winding includes the following coils;
(1) A coil V1- wound around the teeth in the counterclockwise direction when viewed from the teeth side, on the third tooth from the left of the band-shaped stator core provided with the insulating portion;
(2) A coil V2 + wound around the teeth in the clockwise direction when viewed from the teeth side, on the fourth tooth from the left of the band-shaped stator core provided with the insulating portion;
(3) A coil V3 + wound around the teeth in the clockwise direction when viewed from the teeth side, on the ninth tooth from the left of the band-shaped stator core provided with the insulating portion;
(4) A coil V4- wound around the tooth counterclockwise as viewed from the tooth side around the tenth tooth from the left of the strip-shaped stator core provided with the insulating portion;
c. The third phase winding includes the following coils;
(1) A coil W1 + wound around the first tooth from the left of the band-shaped stator iron core provided with the insulating portion in a clockwise direction when viewed from the tooth side;
(2) A coil W2- wound around the tooth in a counterclockwise direction when viewed from the tooth side around the second tooth from the left of the band-shaped stator core provided with the insulating portion;
(3) A coil W3- wound around the teeth in the counterclockwise direction when viewed from the teeth side around the seventh tooth from the left of the band-shaped stator core provided with the insulating portion;
(4) A coil W4 + wound around the teeth in the clockwise direction as viewed from the teeth side, on the eighth tooth from the left of the band-shaped stator core provided with the insulating portion;
d. The three power terminals are arranged on the second, third, and fourth teeth from the left of the strip-shaped stator core provided with the insulating portion;
e. The said neutral point terminal is arrange | positioned at the said 10th teeth from the left of the strip | belt-shaped stator iron core to which the said insulation part was given. A stator iron core having 12 teeth that is laminated by punching electromagnetic steel sheets into a strip shape, an insulating portion applied to the teeth of the stator core, and a direct concentrated winding method on the teeth provided with the insulating portion A stator of a 12-slot 10-pole motor with a three-phase single Y-connected winding applied by
All the connecting wires of the winding are arranged on the connection side of the outer wall of the insulating portion, and the connecting wire is arranged in the first stage closest to the axial end surface of the stator core. And the second-phase winding arranged in the second stage is folded at the neutral point terminal and wound without being cut, and apart from this, the jumper wire is the most on the axial end surface of the stator core. Wind the third phase winding arranged in the far third stage independently,
Forming three power supply terminals for supplying power to the winding of the three-phase single Y connection inserted on the connection side of the insulating portion and the neutral point terminal by bending a square line;
When the stator of the motor is viewed in plan, the first to third phase coils of the three-phase single Y connection are connected in a counterclockwise direction with respect to a power supply terminal, and are strip-shaped with the insulating portion applied. When the stator core is viewed from the teeth side, the first to third phase windings, the three power supply terminals, and the neutral point terminals are arranged as follows. Stator,
a. The first phase winding includes the following coils;
(1) A coil U1- wound around the teeth counterclockwise as viewed from the teeth side on the fifth tooth from the right of the band-shaped stator core provided with the insulating portion;
(2) A coil U2 + wound around the teeth in the clockwise direction when viewed from the teeth side, on the sixth tooth from the right of the band-shaped stator core provided with the insulating portion;
(3) a coil U3 + wound around the teeth in the clockwise direction when viewed from the teeth side, on the eleventh tooth from the right of the band-shaped stator core provided with the insulating portion;
(4) A coil U4- wound around the teeth counterclockwise as viewed from the teeth side around the twelfth teeth from the right of the band-shaped stator core provided with the insulating portion;
b. The second phase winding includes the following coils;
(1) A coil V1 + wound around the tooth in the clockwise direction as viewed from the tooth side, on the third tooth from the right of the strip-shaped stator core provided with the insulating portion;
(2) A coil V2- wound around the teeth in the counterclockwise direction when viewed from the teeth side, on the fourth tooth from the right of the band-shaped stator core provided with the insulating portion;
(3) A coil V3- wound around the tooth counterclockwise as viewed from the tooth side around the ninth tooth from the right of the band-shaped stator core provided with the insulating portion;
(4) A coil V4 + wound around the teeth in the clockwise direction as viewed from the teeth side, on the tenth tooth from the right of the band-shaped stator core provided with the insulating portion;
c. The third phase winding includes the following coils;
(1) A coil W1- wound around the tooth counterclockwise as viewed from the tooth side around the first tooth from the right of the band-shaped stator core provided with the insulating portion;
(2) A coil W2 + wound around the tooth in the clockwise direction as viewed from the tooth side, on the second tooth from the right of the band-shaped stator core provided with the insulating portion;
(3) A coil W3 + wound around the teeth in the clockwise direction when viewed from the teeth side, on the seventh tooth from the left of the band-shaped stator core provided with the insulating portion;
(4) A coil W4- wound around the tooth counterclockwise as viewed from the tooth side on the eighth tooth from the right of the band-shaped stator core provided with the insulating portion;
d. The three power terminals are disposed on the second, third, and fourth teeth from the right of the strip-shaped stator core provided with the insulating portion;
e. The said neutral point terminal is arrange | positioned at the said 10th teeth from the right of the strip | belt-shaped stator iron core to which the said insulation part was given. On the outer wall of the insulating portion of the fourth tooth from the left or right on which the coil V2 + or the coil V2- is wound, a first phase winding start twisting pin on which the winding start of the first phase winding is twisted The fifth tooth from the left or the right from which the coil U1 + or the coil U1- is formed after the winding start of the first-phase winding is hooked on the folded portion of the power terminal. And a protrusion drawn around,
On the outer wall of the insulating portion of the second tooth from the left or right on which the coil W2- or the coil W2 + is formed, the second phase winding start is entangled. The winding start of the second phase winding that is pinched by the second phase winding start pin is pulled by the folded portion of the power supply terminal, and then the coil W1 + or the coil W1- The stator of the electric motor according to claim 1, wherein the stator is drawn around the first tooth from the left or right in which is formed.   On the outer wall of the insulating portion of the teeth where the coil V2 + or the coil V2-, the coil V3 + or the coil V3-, the coil W4 + or the coil W4- is formed, a crossover entrance and a crossover lead-out portion are provided. 4. The electric motor according to claim 1, further comprising a partition pin in between, wherein the connecting wire entrance has a height approximately lower than the connecting wire lead-out portion by about the wire diameter of the magnet wire. stator.   The neutral point terminal is substantially T-shaped, bent about 90 ° with respect to the insertion portion of the neutral point terminal inserted into the insulating portion, and bent about 180 ° at a predetermined position to form the first folded portion. And forming a second folded portion by bending approximately 180 ° toward the insertion portion at a position that is substantially symmetric with respect to the insertion portion, and forming a second folded portion between the distal end portion of the second folded portion and the insertion portion. The stator for an electric motor according to any one of claims 1 to 4, wherein an opening is provided therebetween.   6. The electric motor stator according to claim 1, wherein a rectangular wire is used as the square wire.   An electric motor using the stator of the electric motor according to claim 1.   An air conditioner equipped with the electric motor according to claim 7.   A pump comprising the electric motor according to claim 7.

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