JP3538403B2 - Stator of adduction motor and method of manufacturing the same - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an adduction in which a stator core is divided into a plurality of divided cores, and windings are wound around the cores in a straight line, and then the divided cores are integrated into a ring. The present invention relates to a stator for a type electric motor.

[0002]

2. Description of the Related Art In recent years, a stator in which a winding is applied to a plurality of divided iron core bodies and the divided iron core bodies are arranged in a ring shape, and a method of manufacturing the stator are widely used.

Conventionally, as an example of the configuration of this type of stator, one disclosed in Japanese Patent Application Laid-Open No. 2000-358346 has been known. Hereinafter, the configuration will be described with reference to FIGS.
This will be described with reference to FIG.

[0004] As shown in FIG.
The divided iron core body 201 insulated at 03 is held linearly in a number of poles separately for each phase, and several A-phase windings 204 are connected to and wound around the crossover 205 continuously with several poles, B-phase winding 2
After connecting and winding a number of poles 06 in succession with a crossover 207, these were combined into a ring to form a stator.

As shown in FIG. 12, a plurality of divided iron cores 201 similarly insulated by insulating materials 202 and 203 are individually held in a plurality of poles in each phase.
And a plurality of B-phase windings 206 are connected by a connecting wire 207 and wound, and then these are combined into a ring. Had a stator.

[0006]

In such a conventional stator configuration, it is difficult to manage the crossover 205, and it is also necessary to combine the divided iron cores 201, which are separately and continuously wound with several poles. There has been a problem that a lot of labor is required for the operation of merging into a ring.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide a stator of an adduction type electric motor in which a crossover can be easily managed and a divided iron core can be assembled with a small amount of labor.

[0008] In the stator of the adduction motor according to the present invention, a stator iron core having four slots and four teeth is divided into iron cores and teeth and a yoke are integrally laminated. a is a four, the division iron core divided iron core member b which yoke portion sandwiched are laminated in a is divided a total of four to eight, the amount
Each of the split iron cores a has an outer peripheral portion and an inner peripheral portion formed in an arc shape,
The inner peripheral surface of the yoke is approximately at the center axis of the tooth around which the winding is wound.
A right-angled surface is formed , and crossover wires are continuously arranged on these tooth portions so that two-pole A-phase windings and two-pole B-phase windings are alternately arranged by concentrated winding via insulators. Stator iron wound directly
In the structure of the core, the winding is wound on the four divided iron cores a.
Only each tooth is almost radial and after the motor stator is completed
Same or equal to the regular inner and outer diameter dimensions, regular arrangement and arrangement
And the A-phase winding crossover is B-phase.
To the outer peripheral side of the upper extension provided on the inner diameter side of the winding insulator
Or the transfer of the B-phase winding held by the holding mechanism provided on the upper surface.
Of the lower extension provided on the inner diameter side of the insulation for the A-phase winding
It is held by the holding mechanism provided on the outer peripheral surface side or lower surface.
After the winding, the four divided iron cores a
And move the crossover of each of the A-phase winding and the B-phase winding or
An inner rotation type electric motor characterized in that four divided iron cores b are mounted and fixed in a gap between the divided iron cores a and a without being adjusted in size, and are integrated into a ring shape. It was a stator.

According to the present invention, it is possible to provide a stator of an add-on type motor in which the management of the crossovers of the A-phase winding and the B-phase winding and the assembly of the split iron core body a are easy.

[0010]

DETAILED DESCRIPTION OF THE INVENTION The invention according to claim 1 of the present invention is a division of a stator iron core consisting of four slots and four teeth in which the teeth and the yoke are integrally laminated. and Tetsushintai a four, the division iron core divided iron core member b which yoke portion sandwiched are laminated in a is divided a total of four to eight, the amount
Each of the split iron cores a has an outer peripheral portion and an inner peripheral portion formed in an arc shape,
The inner peripheral surface of the yoke is approximately at the center axis of the tooth around which the winding is wound.
A right-angled surface is formed , and crossover wires are continuously arranged on these tooth portions so that two-pole A-phase windings and two-pole B-phase windings are alternately arranged by concentrated winding via insulators. Stator iron wound directly
In the structure of the core, the winding is wound on the four divided iron cores a.
Only each tooth is almost radial and after the motor stator is completed
Same or equal to the regular inner and outer diameter dimensions, regular arrangement and arrangement
Series-wound with the ring fixed and A-phase winding
The upper crossing is provided on the inner diameter side of the insulation for the B-phase winding.
Is held by the holding mechanism provided on the
The crossover of the B-phase winding is provided on the inner diameter side of the insulation for the A-phase winding.
Holding mechanism provided on the outer peripheral side or lower surface of the lower extension
After being wound and wound, the four divided iron cores a and
Move or measure the crossover of each of the A-phase winding and B-phase winding.
An inner rotation type electric motor characterized in that four divided iron cores b are mounted and fixed in gaps between the divided iron cores a and a without being adjusted, for example , so as to be annularly integrated. The structure of the stator is employed, so that the management of the crossovers can be facilitated, and the assembly of the split iron core body can be facilitated. .

Hereinafter, embodiments of the present invention will be described with reference to FIGS.
This will be described with reference to FIG.

(Embodiment 1) As shown in FIGS. 1 to 8, a stator core 1 having four slots 15 is
And the yoke portion 3-1 are divided into eight, that is, four divided iron core bodies a4 and four divided iron core bodies b5 of the yoke part 3-2, and the divided iron core body a2 is a rotor. The tooth portions 3-1 are arranged on the outer periphery of the hole 6 so as to be substantially radial with the same interval as when the stator 11 is completed. , The A-phase winding 7 is connected by the crossover wire 8a and continuously wound by two poles continuously.
4, the B-phase winding 9 is connected by the crossover 8b in a concentrated winding after the insulation treatment, and the two-pole continuous winding is continuously performed for two poles. After two B-phase winding windings 11 are formed at positions separated by 90 degrees at corners, the divided iron cores b5 divided by the yoke portion 3 are inserted and alternately arranged in a ring shape to form the stator 11. Constitute.

[0013] Further, a manufacturing method in which the winding work of the two-pole A-phase winding 7 and the winding work of the two-pole B-phase winding 9 are performed simultaneously.

Further, the connecting wire 8a of the A-phase winding 7 is connected to the upper extension 12b-1 provided on the inner diameter side of the insulator 12b for the B-phase winding.
The crossover wire 8b of the B-phase winding 9 is held by the holding mechanism 13b-1 provided on the outer peripheral surface side or upper surface of the A-phase winding, and the outer peripheral surface of the lower protruding portion provided on the inner diameter side of the A-phase winding insulator 12a. It is configured to be held by a holding mechanism 13a-1 provided on the side or the lower surface.

The crossover 8a of the A-phase winding 7 is arranged on the load side of the stator core 1 and the crossover 8b of the B-phase winding 9 is arranged on the opposite side of the load. 7 is disposed on the non-load side of the stator core 1 and the crossover 8b of the B-phase winding 9 is provided.
On the load side.

As described above, according to the stator for the adduction motor and the method of manufacturing the same according to the first embodiment of the present invention, the four divided iron cores a2 are made to be the same as or equivalent to when the stator 11 is completed. A-phase winding 7 or B-phase winding 9 is wound directly by a winding machine (not shown) while the A-phase winding 7 and the B-phase winding 9 are connected by a crossover 8a or 8b. When the stator 11 is completely assembled, the connecting wires 8a and 8
Since it is not necessary to move some of the divided iron core bodies a4 without adjusting the length of b, the management of the crossover is easy and the stator 11 can be assembled with a small amount of labor.

Also, for four divided iron core bodies a, A
Since the winding work of the phase winding 7 and the winding work of the B-phase winding 9 are performed at the same time, the winding work of the series winding can be performed in an extremely short time.

Further, since the connecting wires 8a of the A-phase winding 7 and the connecting wires 8b of the B-phase winding are held at positions away from the respective windings, the connecting wires 8a and 8b may be damaged. It is possible to reduce the possibility of a layer failure or the like.

Also, since the connecting wire 8a of the A-phase winding 7 and the connecting wire 8b of the B-phase winding 9 are arranged on the opposite sides of the load side and the non-load side, respectively, with the stator core 1 interposed therebetween, It is possible to reduce the possibility of contact with the winding start lines (not shown), the winding end (not shown), etc. of the windings 8a, 8b and each phase, thereby improving the winding quality.

Embodiment 2 As shown in FIG. 1, FIG. 2, FIG. 7, FIG. 9 and FIG.
The phase winding 7 or the B-phase winding 9 is wound in series, and the four divided iron cores a arranged in an annular shape are trapezoidal or convex in a tapered shape with respect to the inner diameter direction, or these are formed by A split iron core body b having a combined shape and an inner diameter portion and an outer diameter portion thereof formed in a substantially linear shape is attached to the stator of the electric motor from the outer diameter direction of the stator.

Further, the four divided iron cores a4 arranged in a ring are configured to be held at the regular inner and outer diameters of the motor stator.

The A-phase winding 7 or the B-phase winding 9 is wound in series, and the four divided iron cores a4 are arranged in a ring. It is configured to be mounted from below or in the axial direction.

[0023] Thus, according to the stator of the inner rotor type electric motor according to a second embodiment of the present invention, or tapered trapezoidal to the inner diameter direction, or convex or a shape combining these
Since the inner diameter portion and the outer diameter portion are configured to be substantially linear , the split iron core body b is mounted between the split iron core body a around which the winding is wound by only the operation of moving from the outer diameter direction to the inner diameter direction. It is possible to easily assemble the stator. And since a yoke part is made linear, the magnetic path length can be reduced and the motor efficiency can be improved.

Further, the divided iron core a4 is kept exactly the same as the regular inner and outer diameters at the time of completion of the stator, so that there is no need to move from winding to mounting of the divided iron core b5, and the crossover wire is not required. It is possible to eliminate the possibility of damage such as damage and to simplify the manufacturing method.

Further, the configuration in which the divided iron core member b5 is mounted between the four divided iron core members a4 from above or below in the axial direction of the electric motor allows the shape of the divided surface to be freely selected, thereby reducing the creepage distance of the divided surface. The enlargement increases the contact area between the divided iron core a4 and the divided iron core b5, thereby stabilizing the magnetic resistance of the divided surface.

[0026]

As is clear from the above embodiment,
A stator iron core consisting of four slots and four teeth, and four divided iron cores a in which the teeth and the yoke are integrally laminated;
The divided iron core member a in the yoke portion sandwiched laminated was divided iron core member b is divided a total of four to eight, the divided iron
The core body a has an outer peripheral portion and an inner peripheral portion formed in an arc shape,
The inner peripheral surface of the yoke is approximately perpendicular to the center axis of the tooth around which the winding is wound
Surfaces are formed, and these teeth are wound in a concentrated winding with an insulator.
A stator iron formed by serially winding windings by continuously arranging crossovers so as to alternately arrange the pole A-phase winding and the two-pole B-phase winding.
In the structure of the core, the winding is wound on the four divided iron cores a.
Only each tooth is almost radial and after the motor stator is completed
Same or equal to the regular inner and outer diameter dimensions, regular arrangement and arrangement
Series-wound with the ring fixed and A-phase winding
The upper crossing is provided on the inner diameter side of the insulation for the B-phase winding.
Is held by the holding mechanism provided on the
The crossover of the B-phase winding is provided on the inner diameter side of the insulation for the A-phase winding.
Holding mechanism provided on the outer peripheral side or lower surface of the lower extension
After being wound and wound, the four divided iron cores a and
Move or measure the crossover of each of the A-phase winding and B-phase winding.
Without law adjustment, since the four divided iron core b formed by each mounting fixed integrally annularly in the gap of the divided iron core a and the divided iron core a structure completely assembled stator Sometimes crossing
Some of the divided iron cores a without adjusting the length of the wire
It is not necessary to move the
Fixing the adduction motor that allows the stator to be assembled with little effort
Can provide children .

Further, since the winding method of the two-pole A-phase winding and the winding work of the two-pole B-phase winding are performed simultaneously, the winding of the winding in a very short time can be achieved. Mounting work can be performed.

Further, the crossover wire of the A-phase winding is held by a holding mechanism provided on the outer peripheral surface side or the upper surface of the upper protruding portion provided on the inner diameter side of the insulator for the B-phase winding. Crossover is A
The structure is held by the holding mechanism provided on the outer peripheral surface or lower surface of the lower protruding part provided on the inner diameter side of the insulator for phase winding, so possible failure such as layer failure due to damage to the film of the crossover It is possible to reduce the performance.

The crossover of the A-phase winding may be disposed on the load side of the stator core and the crossover of the B-phase winding may be disposed on the opposite side of the load, or the crossover of the A-phase winding may be disposed on the load side. The configuration is such that the crossover of the B-phase winding is arranged on the load side and the crossover of the B-phase winding is arranged on the non-load side of the stator core, so there is a possibility of contact with the crossover and the winding start line, end of winding, etc. And the winding quality can be improved.

Further, the A-phase winding or the B-phase winding is wound in series, and the four divided iron cores a arranged in an annular shape are tapered or trapezoidal or convex in the inner diameter direction. Or a combination of these , whose inner and outer diameters are substantially straight
Since the split iron core body b having the shape described above is mounted from the outer diameter direction of the stator of the electric motor, the outer diameter of the split iron core body b is set between the split iron core bodies a around which the windings are wound. Can be mounted only by the operation of moving from the direction to the inner diameter direction, and the stator can be easily assembled. And since a yoke part is made linear, the magnetic path length can be reduced and the motor efficiency can be improved.

Further, since the four divided iron cores a arranged in a ring are configured to be held at the regular inner and outer diameters of the motor stator, they move from winding to mounting of the divided iron core b. This eliminates the need for the connection, eliminates the possibility of damage such as crossovers, and facilitates the manufacturing method.

Further, an A-phase winding or a B-phase winding is wound in series, and four divided iron cores a are arranged in a ring. Or, since it is configured to be mounted from below in the axial direction, the shape of the divided surface can be freely selected, and the creepage distance of the divided surface is increased, thereby increasing the contact area between the divided iron core a and the divided iron core b. However, this makes it possible to stabilize the magnetic resistance of the divided surface.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an arrangement of four divided iron cores a of a stator iron core of an adduction type electric motor according to a first embodiment of the present invention at the time of winding winding;

FIG. 2 is a front view showing a stator iron core of the adduction motor.

FIG. 3 is a perspective view showing four divided iron core plates b of a stator iron core of the adduction motor.

FIG. 4 is a perspective view showing a divided iron core plate a of a stator iron core of the adduction type electric motor.

FIG. 5 is a perspective view showing four divided iron core plates b of a stator iron core of the adduction motor.

FIG. 6 is a partial perspective view showing a state in which a winding is wound around a divided iron core body a of the adduction motor.

FIG. 7 is a front view showing a state in which a winding is wound around a divided iron core body a of the adduction motor.

FIG. 8 is a front view showing a stator of the adduction motor.

FIG. 9 is a front view showing a stator core in which a divided surface of a divided iron core body a and a divided iron core body b of the adduction type electric motor according to the second embodiment of the present invention has a convex shape;

FIG. 10 is a perspective view showing a divided iron core body b of the adduction motor.

FIG. 11 is a front view showing a state in which divided iron cores a of a conventional adduction type electric motor are linearly arranged and windings are wound;

FIG. 12 is a front view showing a state in which divided iron cores a of a conventional adduction type electric motor are arranged in a ring shape and windings are wound;

[Explanation of symbols]

1 Stator iron core 2 Tooth 3-1、3-2 Yoke section 4 split iron core a 5 split iron core body b 6 rotor holes 7 A phase winding 8a, 8b Crossover 9 B phase winding 10 A phase winding winding body 11 B-phase winding wound body 12a Insulator for A-phase winding 12b Insulator for B phase winding 13a-1, 13b-1 Holding mechanism 15 slots

──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. ⁷ identification code FI H02K 15/04 H02K 15/04 Z (58) Investigated field (Int.Cl. ⁷ , DB name) H02K 3/18 H02K 1 / 16 H02K 1/18 H02K 3/52 H02K 15/02 H02K 15/04

Claims (5)

(57) [Claims] 1. A stator iron core comprising four slots and four tooth portions, four divided iron core members a in which the tooth portions and the yoke portion are integrally laminated, and the split iron core member. A divided iron core body b in which the yoke portions sandwiched by a are laminated is divided into four, a total of eight pieces, and the divided iron core body a has an outer peripheral portion and an inner peripheral portion each having an arc shape.
Is formed, and the inner peripheral surface of the yoke is
A plane substantially perpendicular to the central axis is formed, and these teeth are continuously wound so that two-pole A-phase windings and two-pole B-phase windings are alternately arranged by concentrated winding via an insulator. series-wound wound by arranging the line
In the configuration of the stator iron core consisting of
Only the divided iron core body a is substantially
Same or equal to the regular inner and outer diameter dimensions after completion of the set
Series-wound winding with the arrangement and arrangement of
The crossover of the A-phase winding is on the inner diameter side of the insulation for the B-phase winding.
Retainer provided on the outer peripheral side or upper surface of the upper protruding part provided on
The crossover of the B-phase winding is held by the mechanism and the insulation for the A-phase winding
On the outer peripheral side or lower surface of the lower extension provided on the inner diameter side of the product
After winding and winding by the holding mechanism provided, the four
Of the divided iron core body a and the A-phase winding and the B-phase winding
Without such movement or size adjustment line, each mounted fixed to four divided iron core member b to the gap between the divided iron core a and the divided iron core a inner and characterized by being integrated into the annular Stator of rotary electric motor. 2. The method according to claim 1, wherein the winding work of the two-pole A-phase winding and the winding work of the two-pole B-phase winding are simultaneously performed. 3. The crossover of the A-phase winding is disposed on the load side of the stator core, and the crossover of the B-phase winding is disposed on the opposite side of the load. 2. The stator for an adduction motor according to claim 1, wherein the stator is arranged on the non-load side of the stator core and the crossover of the B-phase winding is arranged on the load side. 4. An A-phase winding or a B-phase winding which is wound in series and wound around the four divided iron cores a arranged in an annular shape. 2. A split iron core body b having an inner diameter portion and an outer diameter portion formed in a substantially linear shape in a shape obtained by combining these or an outer diameter portion thereof is mounted from an outer diameter direction of a stator of the electric motor. Additive type motor stator 5. An A-phase winding or a B-phase winding, which is wound in series, and the four divided iron cores a arranged in a ring, and the divided iron core b is positioned from above in the axial direction of the electric motor. The stator for an adduction motor according to claim 1, wherein the stator is mounted from below in the axial direction.