JP2004096992A - Stator of internally rotating motor and its manufacturing method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To improve workabilty and winding quality when a series winding is wound in a two-pole two-phase motor. <P>SOLUTION: A stator core is split into eight core bodies, i.e. four split core bodies a2 and four split core bodies b held between the split core bodies a2. Since continuous winding is carried out for each phase while holding the four split core bodies a2 annularly during the winding work and then the split core bodies b are fitted and integrated, length of an interconnecting wires is not required to be adjusted when assemblage of the stator has completed and no split core is required to be shifted. Consequently, management of the interconnecting wires is facilitated and the stator can be assembled while reducing the labor. <P>COPYRIGHT: (C)2004,JPO

Description

The present invention relates to a stator of an adduction type electric motor in which a winding is wound around a divided iron core body obtained by dividing a stator iron core into a plurality of pieces, and the divided iron core bodies are integrated in a ring shape.

  2. Description of the Related Art In recent years, stators 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 described in Japanese Patent Application Laid-Open No. 2000-358346 (Patent Document 1) has been known. Hereinafter, the configuration will be described with reference to FIGS.

As shown in FIG. 11, the divided iron core body 201 insulated by the insulating materials 202 and 203 is held linearly in a number of poles separately for each phase, and an A-phase winding 204 is continuously connected to the poles. After connecting and winding by connecting wires 205 and connecting and winding several B-phase windings 206 continuously by connecting wires 207, these are combined into a ring to form a stator. . Also, as shown in FIG. 12, the divided iron core body 201 similarly insulated by the insulating materials 202 and 203 is held in a number of poles separately for each phase in an annular shape, and the A-phase winding 204 is provided in the number of poles. After connecting and winding continuously with the crossover 205 and winding and connecting the B-phase winding 206 with several poles continuously with the crossover 207, these are combined as a stator in a ring-shaped configuration. Was.
JP 2000-358346 A

In such a configuration of the conventional stator, it is difficult to manage the crossover 205, and it takes much time and labor to combine the divided iron core bodies 201 wound and wound several poles continuously in a circular manner. There was a problem that it took.

An object of the present invention is to solve the above-mentioned problems, and to provide a stator for an adduction motor in which a crossover can be easily managed and a divided iron core body can be assembled with little effort.

In the stator of the adduction motor according to the present invention, a stator iron core including four slots and four teeth is divided into four iron cores a in which the teeth and the yoke are integrally laminated. And a divided iron core b in which the yoke portion sandwiched between the divided iron cores a is laminated is divided into four, a total of eight, and only the four divided iron cores a are substantially radially divided. It is the same as or equivalent to the regular size of the motor stator, and it is arranged and fixed in a ring shape. It is alternately arranged with two-pole A-phase winding and two-pole B-phase winding with concentrated winding via insulator. Then, the four divided iron cores b are attached to the gaps between the divided iron cores a and a, respectively, and fixed in a ring shape. This is a method for manufacturing a stator for an adduction type electric motor.

According to the present invention, the A-phase winding and the B-phase winding are wound while the four teeth are fixed in the same or equal to the regular size of the motor stator in an annular shape. It is also possible to assemble and integrate the divided iron cores b without largely moving the four divided iron cores a, and it is easy to manage the phase windings without moving the crossover wires of the respective phase windings. Winding quality can be ensured, such as preventing damage to the film of the crossover or preventing breakage. In addition, the winding operation of the stator and the assembly of the divided iron core a and the divided iron core b are facilitated, and a method of manufacturing a stator of an adduction type electric motor capable of shortening the operation time can be provided. .

Also, a stator iron core consisting of four slots and four teeth is sandwiched between four iron cores a in which the teeth and the yoke are integrally laminated, and the iron core a is divided into four. The divided iron cores b in which the yoke portions are laminated are divided into four, a total of eight, and only the four divided iron cores a are substantially radial and are the same as or equivalent to the regular dimensions of the motor stator. In a state where the two-pole A-phase winding and the two-pole B-phase winding are alternately arranged by concentrated winding via an insulator while being fixedly arranged and fixed in an annular shape, the connecting wires are continuously arranged. A structure in which four divided iron cores b are mounted and wound in a gap between the divided iron cores a and the divided iron cores a, and are integrally fixed in a ring shape. It is.

Advantageous Effects of Invention According to the present invention, it is possible to provide a stator for an add-on type electric motor in which the management of the crossover wires of the A-phase winding and the B-phase winding and the easy assembly of the divided iron cores a and b are easy. it can.

According to the present invention, a stator core composed of four slots and four teeth is provided with four divided iron cores a in which the teeth and the yoke are integrally laminated, and the divided iron cores are provided. A divided iron core body b in which the yoke portions sandwiched by a are laminated is divided into four, eight pieces in total, and only the four divided iron core bodies a are the same as or equal to the regular dimensions of the motor stator. And fixed in an annular shape by means of a bridge, and a crossover is continuously arranged so that two-pole A-phase windings and two-pole B-phase windings are alternately arranged by concentrated winding via an insulator. After winding, a method for manufacturing a stator for an adduction type electric motor, in which four divided iron cores b are attached to the gaps between the divided iron cores a and a and each of which is integrally fixed in a ring shape Easy to manage crossover wires because there is no need to adjust the length of crossover wires when the stator assembly is completed and there is no need to move some of the split iron cores. Possible to provide a method of manufacturing a stator of an inner rotor type electric motor assembly of the stator can be performed with little effort.

In addition, since the winding method of the two-pole A-phase winding and the winding work of the two-pole B-phase winding are performed at the same time, the straight winding of the winding can be performed in a very short time. A method of manufacturing a stator for an adduction motor that can be implemented can be provided.

Further, an A-phase winding or a B-phase winding is wound in series, and a divided iron core b is attached to four annularly arranged divided iron cores a from an outer diameter direction. Since the divided surfaces of the core a and the divided iron core b are formed so that the divided iron core b is tapered or trapezoidal or convex in the inner diameter direction or a combination thereof in order to facilitate the mounting, this division is performed. The iron core b can be mounted between the divided iron cores a around which the windings are wound only by the operation of moving from the outer diameter direction to the inner diameter direction, and the stator can be easily assembled. The four divided iron cores a arranged in an annular shape are substantially radial and have the same or the same size as the regular size of the motor stator. It is possible to provide a stator for an adduction type electric motor which does not need to be moved to the mounting, eliminates the possibility of damage such as crossovers, and can simplify the manufacturing method.

Further, by the manufacturing method in which the divided iron core members b5 are mounted between the four divided iron core members a4 from above or below in the axial direction of the electric motor, the shape of the divided surface can be freely selected, and the creepage distance of the divided surface can be increased. Thereby, the contact area between the divided iron core a4 and the divided iron core b5 can be increased, thereby stabilizing the magnetic resistance of the divided surface.

Also, a stator iron core consisting of four slots and four teeth is sandwiched between four iron cores a in which the teeth and the yoke are integrally laminated, and the iron core a is divided into four. The divided iron cores b in which the yoke portions are laminated are divided into four, a total of eight, and only the four divided iron cores a are substantially radial and are the same as or equivalent to the regular dimensions of the motor stator. With the windings fixed, the windings are continuously wound so that two-pole A-phase windings and two-pole B-phase windings are alternately arranged by concentrated winding, and the windings are wound in series and mounted. And the four divided iron cores b are mounted and fixed in the gaps between the divided iron cores a and the divided iron cores a, respectively, and are integrated in a ring shape. No need to adjust the length of the armature and to move the split iron core body a, so that it is easy to manage the crossover and the stator can be assembled with less labor It is possible to provide a stator of the electric motor.

Further, an A-phase winding or a B-phase winding is wound in series, and a divided iron core b is attached to four annularly arranged divided iron cores a from an outer diameter direction. The split surfaces of the core a and the split iron core b are configured such that the split iron core b has a trapezoidal shape, a convex shape, or a combination thereof that is tapered in the inner diameter direction so as to be easily mounted. The split iron core member b can be mounted between the split iron core members a around which the windings are wound only by the operation of moving from the outer diameter direction to the inner diameter direction, and the stator can be easily assembled.

 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, and the crossover wire of the B-phase winding is The A-phase winding insulator is held by the holding mechanism provided on the outer peripheral surface or lower surface of the lower protruding portion provided on the inner diameter side of the insulator for the A-phase winding. Possibility can be reduced.

Alternatively, 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. Since the crossover of the B-phase winding is arranged on the load side by disposing it on the non-load side of the core, the possibility of contact with the crossover and the winding start line, end of winding of each phase winding, etc. is reduced. It is possible to improve winding quality.

In addition, the A-phase winding or the B-phase winding is wound directly around the four divided iron cores a arranged in a ring, and the divided iron cores b are arranged from above the motor in the axial direction or in the axial direction. Since it was configured to be mounted from below, the shape of the split surface can be freely selected, and the creepage distance of the split surface is increased to increase the contact area between the split iron core a and the split iron core b. This makes it possible to stabilize the magnetic resistance of the divided surface.

According to the first aspect of the present invention, a stator iron core including four slots and four teeth is provided with four divided iron cores a in which the teeth and the yoke are integrally laminated. And four divided iron cores b in which the yoke portions sandwiched between the divided iron cores a are laminated are divided into four, a total of eight, and only the four divided iron cores a are substantially radially It is the same as or equivalent to the regular size of the stator, is arranged and fixed in a ring shape, and is held in a fixed state. Two-pole A-phase winding and two-pole B-phase winding are alternately arranged by concentrated winding via an insulator. After each of the crossover wires is continuously wound and wound in series, the four divided iron cores b are mounted in the gaps between the divided iron cores a and the divided iron cores a, and are integrated into a ring shape. This is a method of manufacturing a stator for an adduction motor, which makes it easy to manage the crossovers and facilitates assembly of the divided iron cores a and b. That.

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

(Embodiment 1)
As shown in FIGS. 1 to 10, a stator iron core 1 having four slots 15 is divided into four divided iron core bodies a <b> 4 in which a tooth portion 2 and a yoke portion 3-1 are integrated, and a yoke portion 3-4. The four divided iron cores b5 are divided into eight parts, and the divided iron cores a2 have substantially radial teeth 3-1 on the outer periphery of the rotor hole 6 and the spacing between the teeth 3-1 is completed. The A-phase winding 7 is connected in an annular manner with the same or equivalent inner and outer diameters as that of the time, and is concentrically wound on the opposing divided iron core body a4 via an insulator via a crossover wire 8a to continuously connect two poles. A series winding is performed, and the B-phase winding 9 is connected to the remaining iron core body a4 in a concentrated winding after the insulation treatment by a crossover wire 8b and continuously wound for two poles. After forming two phase winding units 10 and two B phase winding units 11 at positions separated by 90 degrees in electrical angle from each other, four divided irons divided by the yoke 3 Between core body b5 A manufacturing method obtained by assembling the stator 14 annularly arranged alternately with fixed integrally.

(4) A manufacturing method in which the winding work of the bipolar A-phase winding 7 and the winding work of the bipolar B-phase winding 9 are simultaneously performed.

Further, the A-phase winding 7 or the B-phase winding 9 is wound in a series winding, and the four divided iron cores a4 which are the same as or equal to the regular dimensions of the stator 14 and are arranged in an annular shape are arranged in the inner diameter direction. The manufacturing method is to mount the divided iron core body b5 having a configuration of a tapered trapezoidal shape, a convex shape, or a combination thereof, from the outer diameter direction.

Further, an A-phase winding or a B-phase winding is wound directly around the four divided iron cores a arranged in an annular shape. The manufacturing method is to be mounted from below.

The stator iron core 1 having four slots 15 is divided into four divided iron cores a4 in which the teeth 2 and the yoke 3-1 are integrated and four divided iron cores of the yoke 3-2. The iron core body a2 is divided into eight parts, and the teeth 3-1 are substantially radially formed on the outer periphery of the rotor hole 6 at the same position as the regular inner and outer diameters. It is arranged so as to be held at intervals and to be the same as or equivalent to that at the time of completion of the stator 14. After insulation treatment is performed on the opposing divided iron core a4, the A-phase winding 7 is connected by a crossover wire 8a in a concentrated winding, and is wound continuously and continuously wound for two poles. After the insulation treatment, the B-phase winding 9 is connected by the connecting wire 8b in a concentrated winding, and is continuously wound two poles continuously, and two A-phase winding windings 10 and an electrical angle of 90 ° are provided. The two B-phase wound winding bodies 11 are formed and mounted at positions separated by four degrees, and the four divided iron core bodies b5 divided by the yoke part 3 are divided into the divided iron core bodies a4 and the divided iron core bodies a4. The stator 14 is mounted and fixed between the cores a4 and integrated into a ring shape.

The gap between the four divided iron cores a4 arranged in a regular size and annular in the stator 14 is formed in a trapezoidal shape, a convex shape, or a combination thereof in the inner diameter direction. The four divided iron cores b5 are arranged.

Further, the crossover wire 8a of the A-phase winding 7 is held by the holding mechanism 13b-1 provided on the outer peripheral surface side or the upper surface of the upper protruding portion 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 a holding mechanism 13a-1 provided on the outer peripheral surface side or lower surface of a lower protruding portion provided on the inner diameter side of the A-phase winding insulator 12a. I do.

Alternatively, the crossover 8a of the A-phase winding 7 may be arranged on the load side of the stator core 1 and the crossover 8b of the B-phase winding 9 may be arranged on the opposite side of the load. The wire 8a is arranged on the non-load side of the stator iron core 1, and the crossover 8b of the B-phase winding 9 is arranged on the load side.

Further, the A-phase winding 7 or the B-phase winding 9 is wound in series, and the four divided iron cores a4 arranged in a ring are arranged such that the divided iron cores b5 are arranged from above in the axial direction of the motor or It is configured to be mounted from below in the axial direction.

As described above, according to the stator for the adduction motor and the method for manufacturing the same according to Embodiment 1 of the present invention, only the four divided iron cores a4 are the same as or equal to the regular dimensions when the stator 14 is completed. The stator 14 is held in an annular arrangement so as to be identical or equivalent to the arrangement of the stator 14, and the two-pole A-phase winding 7 or the two-pole B-phase winding 9 is held by a winding machine (not shown). Since the A-phase winding 7 and the B-phase winding 9 are connected by a crossover 8a or 8b and then directly wound and wound, the length of the crossovers 8a and 8b when the stator 14 is assembled is completed. Without adjustment, the split iron core body a4 is held exactly the same or equivalent to the regular inner and outer diameter dimensions when the stator 14 is completed, and is largely moved from winding to mounting of the split iron core body b5. Since there is no need, the management of the crossover is easy, and the A-phase winding 7 and the B-phase winding 9 of the stator 14 and S connecting wire 8a, 8b are possible prevent film damage or disconnection of, allows the assembly of the stator 14 with less effort, it is possible to facilitate the manufacturing method.

Also, since the winding work of the A-phase winding 7 and the winding work of the B-phase winding 9 are simultaneously performed on the four divided iron cores a, the series winding of the winding is performed in a very short time. Work can be performed.

Further, the split iron core b is formed in a trapezoidal shape or a convex shape or a combination thereof which is tapered toward the inner diameter direction, and the split iron core b5 is arranged in the same or equal to the regular size of the stator 14 in a ring shape. The stator 14 can be easily assembled by moving and pressing the gap between the four divided iron cores a in a planar manner from the outer diameter direction to the inner diameter direction.

Further, by the manufacturing method in which the divided iron core members b5 are mounted between the four divided iron core members a4 from above or below in the axial direction of the electric motor, the shape of the divided surface can be freely selected, and the creepage distance of the divided surface can be increased. Thereby, the contact area between the divided iron core a4 and the divided iron core b5 can be increased, thereby stabilizing the magnetic resistance of the divided surface.

Further, only the four divided iron cores a4 are held in a substantially radial shape, which is the same as or equal to the regular dimensions when the stator 14 is completed, and is arranged in an annular shape so as to be the same as or the same as the arrangement of the stator 14. Then, a two-pole A-phase winding 7 or a two-pole B-phase winding 9 is wound directly by a winding machine (not shown), and the A-phase winding 7 and the B-phase winding 9 are crossover wires. Since the stators 14 are connected by 8a or 8b and wound in series, there is no need to adjust the lengths of the crossover wires 8a and 8b and to move some of the divided iron core bodies a4 when the assembly of the stator 14 is completed. Therefore, it is possible to easily manage the crossovers, prevent the A-phase winding 7 and the B-phase winding 9 of the stator 14 and the coatings of the respective crossovers 8a and 8b from being damaged or broken, and to reduce the trouble of the stator. 14 can be realized.

Further, in the gap between the four divided iron cores a4 which are the same as or equal to the regular dimensions of the stator 14 and are annularly arranged, a trapezoidal shape, a convex shape, or a combination thereof which is tapered in the inner diameter direction. Since the four divided iron cores b5 formed in a shape are arranged, a structure in which the divided iron cores b can be easily assembled can be realized.

Also, since the crossover wire 8a of the A-phase winding 7 and the crossover wire 8b of the B-phase winding are held at positions away from the respective windings, a layer defect due to damage to the coating of the crossover wires 8a and 8b is achieved. And the like can be reduced.

In addition, since the connecting wires 8a of the A-phase winding 7 and the connecting wires 8b of the B-phase winding 9 are arranged on the opposite sides of the load side and the non-load side with the stator iron core 1 interposed therebetween, the connecting wires 8a, 8b In addition, it is possible to reduce the possibility of contact with the winding start line (not shown), the winding end (not shown), etc. of each phase winding and to improve the winding quality.

In addition, the configuration in which the divided iron core body b5 is mounted between the four divided iron core bodies 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 increasing the creepage distance of the divided surface. Accordingly, the contact area between the divided iron core a4 and the divided iron core b5 can be increased, thereby stabilizing the magnetic resistance of the divided surface.

According to the present invention, it is not necessary to adjust the length of the crossover when the assembly of the stator of the adduction type motor is completed, and it is not necessary to move some of the iron cores. The present invention is useful as a method for manufacturing a stator of an adduction type electric motor that allows the stator to be assembled.

Perspective view showing an arrangement of four divided iron cores a of a stator iron core of the adduction type electric motor according to the first embodiment of the present invention at the time of winding winding. Front view showing the stator core of the adduction motor Perspective view showing four divided iron core plates b of the stator iron core of the adduction type electric motor. Perspective view showing a split iron core plate a of a stator iron core of the adduction type electric motor. Perspective view showing four divided iron core plates b of the stator iron core of the adduction type electric motor. Partial perspective view showing a state in which a winding is wound around a split iron core body a of the adduction type electric motor. Front view showing a state in which a winding is wound around a divided iron core body a of the adduction type electric motor. Front view showing the stator of the adduction motor A front view showing a stator core in which a shape of 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 is convex. A perspective view showing a divided iron core body b of the adduction type electric motor. The front view which shows the state which divided | segmented iron core body a of the conventional adduction type electric motor arranges linearly, and winds a winding. The front view which shows the state which divided | segmented iron core body a of the conventional adduction type electric motor arrange | positions annularly, and winds a winding.

Explanation of reference numerals

DESCRIPTION OF SYMBOLS 1 Stator iron core 2 Teeth part 3-1, 3-2 Yoke part 4 Split iron core body a
5 split iron core body b
Reference Signs List 6 Rotor hole 7 A-phase winding 8a, 8b Crossover 9 B-phase winding 10 A-phase winding winding body 11 B-phase winding winding body 12a A-phase winding insulator 12b B-phase winding insulation Object 13a-1, 13b-1 Holding mechanism 14 Stator 15 Slot

Claims (9)

A stator iron core consisting of four slots and four teeth is sandwiched between the four iron cores a in which the teeth and the yoke are integrally laminated, and the iron cores a. The four divided iron cores b in which the yoke portions are laminated are divided into eight pieces in total, and only the four divided iron cores a are substantially radial and have a ring shape that is substantially the same as or equal to the regular size of the motor stator. And a fixed cross-connecting wire is continuously arranged so that two-pole A-phase windings and two-pole B-phase windings are alternately arranged by concentrated winding via an insulator. A method for manufacturing a stator for an internal-rotation type electric motor, comprising: winding and winding four divided iron cores b in a gap between the divided iron cores a and a; 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. An A-phase winding or a B-phase winding is wound in series, and a trapezoidal shape, a convex shape, or a combination thereof, which is tapered with respect to the inner diameter direction, for the four divided iron cores a arranged in an annular shape. 2. The method for manufacturing a stator for an adduction type electric motor according to claim 1, wherein the divided iron core body b having a bent shape is mounted from an outer diameter direction of the stator of the electric motor. The A-phase winding or the B-phase winding is wound directly and the divided iron cores b are applied to the four divided iron cores a arranged annularly from above or below the motor in the axial direction. The method for manufacturing a stator for an adduction motor according to claim 1 to be mounted. A stator iron core consisting of four slots and four teeth is sandwiched between the four iron cores a in which the teeth and the yoke are integrally laminated, and the iron cores a. The four divided iron cores b in which the yoke portions are laminated are divided into eight pieces in total, and only the four divided iron cores a are substantially radial and have a ring shape that is substantially the same as or equal to the regular size of the motor stator. The winding is continuously wound so that the two-pole A-phase winding and the two-pole B-phase winding are alternately arranged in a concentrated winding through an insulator while being fixed and fixed to the winding. A stator of an adduction type electric motor which is mounted and mounted, and is fixedly mounted in a gap between the divided iron cores a and the four divided iron cores a, respectively, and integrally fixed in a ring shape. An A-phase winding or a B-phase winding is wound in series, and a divided iron core b is attached to four annularly arranged divided iron cores a from an outer diameter direction. The split surfaces of the core a and the split iron core b are configured such that the split iron core b has a trapezoidal shape, a convex shape, or a combination thereof that is tapered with respect to the inner diameter direction so as to be easily mounted. 6. The stator of the adduction motor according to 5. The crossover wire of the A-phase winding is held by a holding mechanism provided on the outer peripheral surface or upper surface of the upper protruding portion provided on the inner diameter side of the insulator for the B-phase winding. 6. The stator for an internal rotation motor according to claim 5, wherein the stator is held by a holding mechanism provided on an outer peripheral surface side or a lower surface of a lower protruding portion provided on an inner diameter side of the winding insulator. 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 non-load side, or the crossover of the A-phase winding is connected to the stator core. 6. The stator according to claim 5, wherein the stator is disposed on the non-load side and the crossover of the B-phase winding is disposed on the load side. The A-phase winding or the B-phase winding is wound directly and the divided iron cores b are applied to the four divided iron cores a arranged annularly from above or below the motor in the axial direction. The stator of the adduction motor according to claim 5, which is mounted.

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