JP3430109B2 - Stator of adduction motor - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an inversion type electric motor having a structure in which a stator iron core is divided into a plurality of parts and windings are directly wound, and then the divided stator iron cores are integrated into an annular shape. Regarding the stator.

[0002]

2. Description of the Related Art In recent years, a method has been generalized in which a stator is manufactured by winding a winding directly around a split iron core body divided into the same number as the number of teeth and then integrally incorporating the split iron core body. In order to reduce the weight of the iron core material and the copper wire, the number of teeth is limited to 8 or more.

Conventionally, as an example of the structure of this type of stator, the one described in Japanese Patent Application Laid-Open No. 9-46979 has been known. The configuration will be described below with reference to FIGS. 11 to 15.

As shown in FIGS. 11 and 12, the divided tooth portion 201 is insulated with insulating materials 202 and 203, and then a relay pin 205 is provided as a winding start portion and winding end portion of the winding 204. After winding the winding wire 204, these are united into a ring to form a stator.

Further, as shown in FIGS. 13, 14 and 15, a stator core having four slots 301 is divided into as many teeth 302 as there are yokes 303. ,
The winding 305 is wound by the winding machine 307 via the insulating material 304. Since the yoke portion 303 extends in the circumferential direction with respect to the tooth portion 302 and is arcuately long, the winding work of the winding 305 is performed. In that case, it was necessary to take measures such as installing a special winding guide.

[0006]

In such a conventional stator structure, the former structure is directly applied to the latter structure and the divided iron core body 306 is divided into teeth 302 and windings 305.
When winding the wire, it is necessary to take measures such as mounting the winding guide guide a 308 and the winding guide guide b 309 because the yoke portion 303 is long in an arc shape. There is a problem that it is difficult to secure the winding quality because it is wound around the tooth portion 302 while sliding on the surface of the guide b309.

The present invention is intended to solve the above problems, and it is possible to wind a winding without mounting a special winding guide guide on the stator iron core, and to improve the winding quality. An object of the present invention is to provide a stator of a type electric motor.

[0008]

In the stator of the adder type electric motor of the present invention, the tooth portion and the yoke portion are integrally formed.
It is sandwiched between the divided iron core bodies a and the divided iron core bodies a.
Stator iron with four split iron cores b forming the yoke part
A core is formed, and when the winding is wound, each of the split iron cores
In a state where a and each of the divided iron core bodies b are divided,
A-phase winding or B-phase winding is provided on each of the split iron cores a.
By winding the wire directly, two pieces of each of the divided iron core bodies a are provided.
The A-phase winding winding body and two B-phase winding winding bodies of
After the mounting is completed, the split iron core body a constituting the winding body of the A phase winding a
Between the split iron core body a that constitutes the B-phase winding winding body and
By disposing the divided iron core bodies b and integrating them in a ring shape,
A stator core consisting of 4 slots and 4 teeth
A stator of an adder-type electric motor, which comprises the split iron core.
The inner peripheral surface of the yoke portion of the body a is the central axis of the tooth portion around which the winding is wound.
To form a substantially right-angled surface, and the inner peripheral surface of the split iron core b is a circle.
It is configured to have an arc shape .

According to the present invention, it is an object of the present invention to perform winding winding without attaching a special winding guide and the like, and to secure the winding quality.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION The invention according to claim 1 of the present invention comprises four split iron core bodies integrally forming a tooth portion and a yoke portion.
a and a yoke portion sandwiched between the split iron cores a
The stator iron core is composed of four split iron cores b
At the time of wire winding, each of the split iron cores a and
In the state where the divided iron core body b is divided,
Attaching the insulating material to the split iron core a, and attaching the insulating material
After that, by winding A phase winding or B phase winding directly,
Each of the divided iron cores a includes two A-phase winding winding bodies and two B-phase winding bodies.
After winding the phase winding, the outer circumference of the insulating material
The inner peripheral side of the split iron core body b by pressing and deforming the
Split iron that composes an A-phase winding winding body along the
The core a and the split iron core a constituting the B-phase winding body
The divided iron core body b is arranged between the
And a stator consisting of 4 slots and 4 teeth
A stator of an adder-type electric motor that constitutes an iron core, wherein
The inner peripheral surface of the yoke portion of the split iron core a is a tooth portion around which a winding is wound.
An inner circumference of the split iron core body b is formed by forming a surface substantially perpendicular to the central axis.
The surface is formed in an arc shape, and has an effect of ensuring the quality of the winding such as preventing the coating film of the winding wound around the stator iron core from being scratched or preventing disconnection.

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 10, a stator iron core 1 is divided into eight divided iron core bodies a2 and four divided iron core bodies b3. The split iron core a2 is arranged on the outer periphery of the rotor hole 4 so that the tooth portions 5 thereof are substantially radial, and two A phase winding winding bodies 7 around which the A phase winding 6 is wound are provided. Two pieces of the B-phase winding winding body 9 in which the B-phase winding 8 is wound at a position separated from this by an electrical angle of 90 degrees sandwich the split iron core body b3 divided by the yoke portion 10. Are alternately arranged in a ring shape to form the stator 11. When winding the winding, the stator iron core 1 is divided into eight pieces, the insulating material 12 is attached to the four pieces of the divided iron core bodies a2, and then the A-phase winding 6 or the B-phase winding 8 is attached. It is wound directly by a winding machine (not shown) to form two A-phase winding winding bodies 7 and two B-phase winding winding bodies 9, and insulating material after winding winding is completed. The outer peripheral side 12a of 12 is pressed and deformed in the inner diameter direction so as to be along the inner peripheral side of the split iron core body b3, and has an annularly integrated configuration.

Further, the joint portion of the split iron core body a2 and the split iron core body b3 has a surface X parallel to the central axis O of the tooth portion,
Further, both sides thereof have concave portions 2a, which are integrated with the convex portions 3a on both sides of the joint portion of the split iron core body b3.

Further, the inner peripheral surface of the yoke portion 10 of the divided iron core body a2 forms a surface Y substantially perpendicular to the central axis O of the tooth portion 5, and the inner peripheral surface of the divided iron core body b3 forms an arc shape. The configuration.

The insulating material 12 mounted on the split iron core a2 is made up of the upper and lower surfaces of the tooth portion 5, both side surfaces and the inner circumferential surface of the circumferential projection 5a on the inner circumferential side of the tooth portion 5, and the yoke portion. The structure extends linearly from the inner peripheral surface of 10 to about half of the inner peripheral surface of the split iron core body b3 to cover the split iron core body b3.
After being deformed into a shape that follows the circular arc of the inner peripheral surface, the split iron core bodies b3 are combined and integrated into an annular shape.

The insulating material 12 on the inner peripheral surface of the yoke portion 10 of the split iron core body a2 and the insulating material 12 of the adjacent split iron core body a2 sandwiching the split iron core body b3 and the split iron core body. b3 overlaps near the center in the circumferential direction, and the circumferential projection 5 on the inner circumferential side of the tooth portion 5
The insulating material 12 on the inner peripheral surface of the a is the adjacent iron core body a2
The insulating material 12 and the slot 13 overlap in the vicinity of the opening 14 on the inner peripheral side of the slot 13.

As described above, according to the stator of the electric motor of the first embodiment of the present invention, the A-phase winding 6 or the B-phase winding 8 is provided to the split iron core a2 by the winding machine (not shown). In the case of series winding, the split iron core body b3 is removed and the single split iron core body a is removed.
Since the winding can be wound around 2 and the winding machine can be wound in a simple winding motion without mounting a complicated winding guide or the like, the winding can be wound on the surface of the winding guide. Winding can be done without sliding, and damage to the winding film or breakage can be prevented, and winding quality can be ensured.

Further, the joint portion of the split iron core body a2 and the split iron core body b3 has a surface X parallel to the central axis O of the tooth portion 5, and both sides thereof have the recesses 2a and the protrusions. Therefore, when the A-phase winding 6 or the B-phase winding 8 is directly wound around the split iron core body a2, the split iron core body a2 can be easily fixed to the rotary shaft of the winding machine, and can be fixed. The structure can be simplified.

Further, the inner peripheral surface of the yoke portion 10 of the split iron core a2 forms a surface Y which is substantially perpendicular to the center line O of the tooth portion 5,
The portion where the inner peripheral surface forms an arc is a split iron core body b3, and when the A-phase winding 6 or the B-phase winding 8 is directly wound around the winding winding body a2, the winding of the yoke portion 10 is performed. Since the split iron core body b3, which is an obstacle to the wire winding work, can be directly wound in the removed state, the winding operation can be facilitated.

Further, the insulating material 12 such as the winding bobbin to be mounted on the split iron core a2 includes the upper and lower surfaces of the tooth portion 5, both side surfaces and the inner circumferential surface of the circumferential projection 5a on the inner circumferential side of the tooth portion 5, And a configuration in which it extends linearly from the inner peripheral surface of the yoke portion 10 to about half of the inner peripheral surface of the split iron core body b3 to cover it.
After the split iron core body b3 is deformed into a shape along the arc of the inner peripheral surface, the split iron core body b3 is combined and integrated into an annular shape. Therefore, the split iron core body a2 has the A phase winding 6 or the B phase winding. When 8 is wound directly, winding can be done by a simple rotating operation of the winding machine,
After the winding, the outer peripheral side of the insulating material 12 is deformed into an arc shape so as to follow the shape of the inner peripheral side of the divided iron core body b3, and then the divided iron core body b3 can be assembled in an annular shape.

The insulating material 12 on the inner peripheral surface of the yoke portion 10 of the split iron core body a2 and the insulating material 12 of the adjacent split iron core body a2 sandwiching the split iron core body b3 and the split iron core body. b3 overlaps near the center in the circumferential direction, and the circumferential projection 5 on the inner circumferential side of the tooth portion 5
The insulating material 12 on the inner peripheral surface of a overlaps with the insulating material 12 of the adjacent iron core body a2 in the vicinity of the opening 14 on the inner peripheral side of the slot 13, and the A-phase winding is wound around the iron core body a2. 6 or B-phase winding 8 and the creeping insulation distance between the split iron core body b3 of the stator iron core 1 and the circumferential protrusion 5a of the split iron core body a2,
Alternatively, it is possible to easily secure the space insulation distance more than the required dimension.

[0022]

As is apparent from the above embodiments,
According to the present invention, in a stator in which two-pole A-phase windings and two-pole B-phase windings are alternately wound and arranged by concentrated winding on each tooth portion of a stator iron core having four slots. Before the winding of the winding, the stator iron core has four divided iron core bodies a each having a tooth portion and a yoke portion, and the divided iron core bodies of the yoke portion sandwiched by the divided iron core bodies a. Since b is divided into 8 pieces in total, which is combined and integrated into a ring after the winding is completed, a complicated winding guide is provided when the A winding or the B phase winding is directly wound. (EN) It is possible to provide a stator of an adder-type electric motor that can be wound without mounting a jig and can prevent damage to the winding film or the occurrence of wire breakage.

Further, since the joint portion of the split iron core body a and the split iron core body b has a surface parallel to the central axis of the tooth portion, and both sides thereof have concave portions and no convex portions, Since the split iron core a is combined with the projections on both sides of the joint of the split iron core b to be integrated, the rotary shaft of the winding machine for direct winding of the A-winding or the B-phase winding On the other hand, the split iron core a can be easily fixed on both end faces thereof, and the fixing structure can be simplified.

In addition, the inner peripheral surface of the yoke portion of the split iron core body a forms a surface substantially perpendicular to the central axis of the tooth portion, and the inner peripheral surface of the split iron core body b forms an arc shape. Therefore, the work of directly winding the winding can be performed with the split iron core b removed, and the work of winding the winding can be facilitated.

In addition, the insulating material such as the winding bobbin mounted on the split iron core a is made of the upper and lower surfaces of the tooth portion, both side surfaces and the inner peripheral surface of the circumferential projection on the inner peripheral side of the tooth portion, and the yoke portion. From the inner peripheral surface of the divided iron core body b to a linear shape extending to about half of the inner peripheral surface of the divided iron core body b to cover the inner peripheral surface of the divided iron core body b. After being deformed, the split iron core b
Since it is configured so as to be integrated into a ring shape by winding, when the A-phase winding or the B-phase winding is directly wound around the split iron core a, the winding can be performed by a simple rotating operation of the winding machine. After the completion, the outer peripheral side of the insulating material is deformed into an arc shape so as to follow the shape of the inner peripheral side of the split iron core body b, and then the split iron core body b can be assembled in an annular shape.

Further, the insulating material on the inner peripheral surface of the yoke portion of the split iron core a is sandwiched between the split iron cores b and adjacent to each other.
And the insulating material of the inner peripheral surface of the circumferential protrusion on the inner peripheral side of the tooth portion overlaps with the insulating material of the adjacent divided iron core a in the slot. Since it is configured to overlap in the vicinity of the opening on the circumferential side, the A-phase winding or the B-phase winding wound around the split iron core a and the split iron core b and the split iron core a of the stator iron core are It is possible to easily secure the creepage insulation distance or the space insulation distance between the inner circumference side projection and the necessary dimension or more.

[Brief description of drawings]

FIG. 1 is a front view showing a stator core of an adder-type electric motor according to a first embodiment of the present invention.

FIG. 2 is a perspective view showing a split iron core body a of a stator of the inversion motor.

FIG. 3 is a perspective view showing a split iron core b of a stator of the adder-type electric motor.

FIG. 4 is a front view showing a stator of the inversion type electric motor.

FIG. 5 is a front view showing a state in which an insulating material is attached to a split iron core body a of a stator of the adder motor.

FIG. 6 is a partially cutaway front view showing a state in which a winding is wound around a split iron core body a of the inversion motor.

FIG. 7 is a front view showing a central axis of a tooth portion on a split iron core a of the adder-type electric motor.

FIG. 8 is a front view showing a state where the outer peripheral side of the insulating material of the split iron core body a of the inversion motor is deformed into an arc shape.

FIG. 9 is a front view showing a state where four split iron core bodies a of the adder-type electric motor are arranged in a ring shape.

FIG. 10 is a partially cutaway front view showing a state in which a split iron core body a and a split iron core body b of the inversion motor are combined.

FIG. 11 is a perspective view showing a state in which a winding is wound around a tooth portion of a stator of a conventional adder-type electric motor.

FIG. 12 is a plan view showing a portion of the stator.

FIG. 13 is a front view of a stator of another conventional adder-type electric motor.

FIG. 14 is a plan view showing a divided portion of the stator.

FIG. 15 is a plan view showing a state in which a winding is wound around a divided portion of the stator.

[Explanation of symbols]

1 Stator iron core 2 split iron core a 2a recess 3 split iron core b 3a convex part 4 rotor holes 5 teeth 5a Circumferential projection 6 A phase winding 7 A-phase winding winding body 8 B phase winding 9 B-phase winding body 10 Yoke part 11 stator 12 Insulation material 13 slots 14 openings

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Claims (5)

(57) [Claims] 1. A four-piece structure that integrally forms a tooth portion and a yoke portion.
The split iron core a and the yoke that is sandwiched between the split iron cores a
The stator iron core is formed by the four split iron cores b forming the
When the winding is wound, the divided iron cores a and
In a state where each of the divided iron core bodies b is divided,
An insulating material is attached to each of the divided iron cores a,
After mounting the material, directly wind the A-phase winding or the B-phase winding.
Thus, each of the divided iron cores a is provided with two A-phase winding winding bodies.
And two B-phase windings, and after the winding is completed, insulation
The divided iron core body is formed by pressing and deforming the outer peripheral side of the material in the inner diameter direction.
The A-phase winding winding body is configured so as to extend along the inner peripheral side of b.
The split iron core a and the split forming the B-phase winding winding body
The divided iron core body b is arranged between the iron core body a and the iron core body a so as to form an annular shape.
By embodying it, it is composed of 4 slots and 4 teeth.
This is the stator of the adder-type motor that constitutes the iron core.
The inner peripheral surface of the yoke portion of the split iron core a is wound with a winding.
Forming a surface substantially perpendicular to the central axis of the tooth part
The inner peripheral surface of the body b is a stator of an adder-type electric motor having an arc shape . 2. The four teeth for integrally forming the tooth portion and the yoke portion.
The split iron core a and the yoke that is sandwiched between the split iron cores a
The stator iron core is formed by the four split iron cores b forming the
When the winding is wound, the divided iron cores a and
In a state where each of the divided iron core bodies b is divided,
A-phase winding or B-phase winding is attached to each of the split iron cores a.
By winding in series, each of the divided iron cores a is divided into two A
Complete the winding of the winding by using the phase winding winding and two B phase winding windings.
After the completion, the split iron cores a and B constituting the A-phase winding winding body are formed.
Between the split iron core body a constituting the phase winding winding body,
4 pieces by arranging the split iron cores b and integrating them in an annular shape
Stator core consisting of 4 slots and 4 teeth
Which is a stator of an adder-type electric motor,
The inner peripheral surface of the yoke part of is approximately aligned with the central axis of the tooth part around which the winding is wound.
A right-angled surface is formed, and the inner peripheral surface of the split iron core b is arcuate.
The stator of the rotor type motor among which is configured to form a. 3. The split iron core a is joined to the split iron core b by a joint having a surface parallel to the central axis of the tooth portion, and also having recesses on the parallel surfaces on both sides. The structure according to claim 1 or 2 , wherein the core b is combined with and integrated with the protrusions on both sides of the joint.
Item 3. The stator of the adder-type electric motor according to Item 2 . 4. An insulating material such as a winding bobbin to be mounted on the split iron core a is made of an upper surface, a lower surface, both side surfaces and inner circumferential surfaces of circumferential projections on the inner circumferential side of the tooth section, and a yoke section. Of the inner peripheral surface of the divided iron core body b extending linearly from the inner peripheral surface of the divided iron core body b to cover about half of the inner peripheral surface of the divided iron core body b. after deformation, claim and configured to be integrated into the annular combination of the divided iron core member b 1 or請
The stator of an adder-type electric motor according to claim 2 . 5. The insulating material on the inner peripheral surface of the yoke portion of the split iron core body a is made of the insulating material of the split iron core bodies a adjacent to each other with the split iron core body b interposed therebetween and the circumferential direction of the split iron core body b. Overlap near the center,
Claim insulating material of the inner peripheral surface of the inner peripheral side of the circumferential projection of the teeth was configured to overlap in the vicinity of the opening of the insulating material and the inner circumferential side of the split iron core a neighboring 1 or claim 2 The stator of the inversion type electric motor described in.