JP2003088031A - Stator for capacitor motor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve the quality of a winding by minimizing the number of winding start parts and winding end parts thereof and avoiding degradation of a copper wire film caused by strand-to-strand contact of a lead wire and crossover. SOLUTION: This stator comprises a main winding 10 in which the main winding start lead wire 14a and the main winding end lead wire 14b are arranged at one position of an insulator 3 and which is concentratedly wound via the main crossover 11 between poles, and an auxiliary winding 12 in which the auxiliary winding start lead wire 14c and the main winding end lead wire 14d are arranged at one position of the other insulator 3 and which is concentratedly wound via the auxiliary crossover 13 between the poles. In the stator, a lead wire storage groove 5 which extends in the laminating direction of a stator core 1 is formed on an inner wall part 3a, and a crossover storage groove 6 is formed roughly orthogonally to the lead wire storage groove 5.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a stator of a small-capacitor motor used for driving a fan such as an electric fan or a ventilation fan, and using a stator core divided into the same number as slots.

[0002]

2. Description of the Related Art In recent years, a stator of a capacitor motor of this type has a structure in which a plurality of divided stator cores are subjected to insulation treatment and windings in order to reduce the materials used and to simplify the manufacturing method. Is popular.

Conventionally, as an example of a stator of this type of electric motor, the one described in Japanese Patent Application Laid-Open No. 9-46979 has been known. The stator of the electric motor will be described below with reference to FIGS. 6 to 9.

As shown in FIGS. 6 and 7, the winding 101
Is wound, and the coil bobbin 103 provided with the relay pin 102 serving as a winding start portion and a winding end portion of the winding 101 is attached to each tooth portion 1.
After it was inserted into 04, it was united with the yoke 105 to form a stator.

Further, as shown in FIGS. 8 and 9, the end insulators 202, 20 are attached to the divided tooth portion 201.
After performing the insulation treatment in 3, the winding 204 is wound by providing the relay pin 205 which serves as the winding start portion and the winding end portion of the winding 204, and then integrated into an annular shape to form a stator.

[0006]

In the structure of such a conventional stator, in the former case, the relay pin 102 serving as a winding start portion and a winding end portion of the winding 101 for each coil bobbin 103 inserted into the tooth portion 104. In the latter case, the end insulator 2 is provided for each divided tooth portion 201.
Since the relay pin 205 serving as the winding start portion and the winding end portion of the winding 204 is provided in 02, the number of the relay pins 102 and 205 is large in both the former and the latter, and the tooth portion 104 or the tooth portion 201 is connected. The crossover processing to be performed becomes complicated,
There was a problem that the number of processing work steps was increased.

The present invention solves the above problems by reducing the number of winding start portions and winding end portions of a winding to reduce the number of man-hours for crossover wire processing, and reducing the number of winding start portions and winding end portions. The purpose is to avoid deterioration of the copper wire coating due to contact between the strands of the lead wire and the crossover wire and to secure the winding quality.

[0008]

In a stator of a capacitor motor according to the present invention, a stator core is divided and laminated in the same number as the number of slots, and a pair of films for insulating both side surfaces of the stator core. , A pair of insulators molded of resin or the like for insulating the end faces of the stator core, and lead wires for winding start and winding end are arranged at one location of this insulator and the main crossover wire between the poles is interposed. Main windings are concentrated and wound continuously in several poles, and lead wires at the beginning and end of winding are arranged in an insulator at another location, and the main crossover wire is in the stacking direction with the stator core sandwiched between them. It is composed of an auxiliary winding that is continuously wound concentratedly on several poles through auxiliary crossovers arranged on opposite sides, and the insulator is formed from an inner wall portion and an outer wall portion that prevent the winding from collapsing. The ends of the lead wire of the winding are entangled at both ends of the inner wall Has a pin holder for holding the pin,
A lead wire accommodating groove for a winding extending in the stator core lamination direction is formed near the lower part of the pin holding portion, and a crossover wire accommodating groove between the winding poles is formed in a direction substantially orthogonal to the lead wire accommodating groove. Is.

According to the present invention, the number of winding start portions and winding end portions of the windings is minimized to reduce the number of man-hours for processing the crossover wire, and the lead wires of the main and auxiliary windings and (EN) A stator of a capacitor motor capable of avoiding deterioration of a copper wire coating due to contact between strands of a crossover wire and an auxiliary crossover wire and ensuring winding quality.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION The invention according to claim 1 of the present invention comprises a stator core which is divided and laminated in the same number as the number of slots, and a pair of films which insulate both side surfaces of the stator core. A pair of insulators molded of resin or the like for insulating the end faces of the stator core, and lead wires for winding start and winding end are arranged at one location of the insulators and the poles are provided through the main crossover wire between the poles. Main winding that is wound several times in a concentrated manner,
A lead wire at the beginning and end of the winding is arranged on another insulator, and several poles are connected continuously via an auxiliary cross wire that is arranged on the side opposite to the main cross wire with the stator core sandwiched between them. And an auxiliary winding that is wound in a concentrated manner, and the insulator is formed of an inner wall portion and an outer wall portion that prevent the winding wire from collapsing, and terminals that tie the lead wire of the winding around both ends of the inner wall portion. A pin holding portion for holding the pin is provided, and a lead wire accommodating groove of the winding extending in the stator core stacking direction near the lower portion of the pin holder and a winding pole in a direction substantially orthogonal to the lead wire accommodating groove. By forming a crossover wire storage groove between them, the number of winding start parts and end parts of the winding wire is minimized to reduce the number of man-hours for crossover wire processing, and the main winding wire and auxiliary winding wire The copper wire coating is formed by the contact between the lead wires and the main and auxiliary crossover wires. Has an action capable of ensuring the winding quality is avoided of.

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

(First Embodiment) As shown in FIGS. 1 to 5, a stator of a capacitor motor according to a first embodiment of the present invention is a stator core in which four stators, which are the same as the number of slots 9, are divided and laminated. 1 is provided with a pair of films 2 and a pair of insulators 3 to provide insulation. The main winding wire 10 has a main winding start lead wire 14a and a main winding end lead wire 14b arranged at one place of the insulator 3, and several concentrated poles are continuously wound through a main crossover wire 11 between the poles. . At this time, the main crossover 11 is arranged on the side opposite to the leader line. The auxiliary winding 12 has an auxiliary winding start lead wire 14c and an auxiliary winding end lead wire 14d arranged in one place of the insulator 3 different from the main winding wire 10, and the main crossover wire 11
Is arranged on the opposite side of the lead wire 14 with the stator core 1 sandwiched therebetween, and several poles are continuously concentratedly wound via the auxiliary crossover wire 13 between the poles.

The insulator 3 is made of resin or the like, and is formed with an inner wall portion 3a and an outer wall portion 3b which prevent the main winding 10 and the auxiliary winding 12 from collapsing, and terminal pins 15 can be erected on both ends of the inner wall portion 3a. A pin holding portion 4 is provided, a lead wire storage groove 5 extending in the stacking direction of the stator core 1 near the lower portion of the pin holding portion 4, and a main crossover wire 11 extending in a direction substantially orthogonal to the lead wire storage groove 5. Also, the crossover wire storage groove 6 in which the auxiliary crossover wire 13 is arranged is formed. Here, the lower side means the inner wall portion 3
It means the direction from the pin holding portion 4 of a toward the stator core 1.

Further, the collar portion 5 forming the lead wire storage groove 5 is formed.
One wall surface 6a that forms a and the connecting wire storage groove 6 is formed in a tapered shape that widens in the outer peripheral direction toward the stator core 1, that is, downward.

Further, a film holding portion 8 is formed at a position further below the connecting wire storage groove 6 of the insulator 3. Then, a bent portion 2a is formed by bending the end portion of the film 2 on the inner peripheral side toward the slot 9 at a position where a sufficient space distance can be secured from the tip of the end portion to the stator core 1 to hold the film. The part 8 and the bent part 2a are engaged with each other.

Further, a prismatic pillar portion 7 is formed in the center of the outer wall portion 3b of the insulator 3. The auxiliary crossover wire 13 and the auxiliary winding end lead wire 14d are entangled with each of the auxiliary upper pillar portion 7a and the auxiliary lower pillar portion 7b where the first auxiliary winding 12a is located to reverse the traveling direction of the wiring. Also, the second main winding 1
The main crossover 11 is entangled with the main lower column 7c where 0b is located, and the traveling direction of the wiring is reversed.

Although the crossovers and the lead wires are entwined around the pillars 7a, 7b and 7c to reverse the traveling direction of the wiring, the winding positions of the main winding 10 and the auxiliary winding 12 are exchanged. Or when the winding directions of the first main winding 10a to the second main winding 10b and the first auxiliary winding 12a to the second auxiliary winding 12b are reversed. It may be entwined with the pillar portion 7, and the point is that the pillar portion 7 is placed at an appropriate position while the main crossover wire 11, the auxiliary crossover wire 13, and the lead wire 14 are being routed.
If

As described above, according to the stator of the capacitor motor of the first embodiment of the present invention, the main winding 10 and the auxiliary winding 1
Since each of 2 is continuously wound through the crossover wire,
The number of terminal pins 15 is minimized to reduce the number of man-hours for crossover wire processing, and the lead wire 14 of each winding is placed in the lead wire storage groove 5, and the main crossover wire 11 and the auxiliary crossover wire 13 are crossover wire storage grooves. Since it is arranged in No. 6, it is possible to avoid the deterioration of the copper wire coating due to the contact between the wires having the potential difference and to secure the winding quality.

Further, the collar portion 5 forming the lead wire storage groove 5 is formed.
a and one of the wall surfaces 6a forming the crossover wire storage groove 6 are formed in a tapered shape that widens in the outer peripheral direction toward the stator core 1, so that when arranging the main crossover wire 11 and the auxiliary crossover wire 13, respectively. The crossover wire is pulled in the outer peripheral direction along the taper shape, and the extra slack can be absorbed, so that the insulation distance can be stably secured and the quality of the winding wire can be secured.

Further, at the end portion of the film 2, a bent portion 2a is formed by bending the film 2 to the outer peripheral side at a length position where a sufficient space distance can be secured from the tip of this end portion to the stator core 1, and the film holding portion 8 is formed. To engage the bent portion 2a with the main crossover wire 11 or the auxiliary crossover wire 13 passing near the bent portion 2a.
And, it is possible to easily secure the insulation distance from the stator core 1.

Further, the main crossover wire 11 and the auxiliary crossover wire 13 are entangled with the pillar portion 7 provided on the outer wall portion 3b of the insulator 3, and the traveling direction of each crossover wire is reversed, so that the crossover wire is fixed. It is increased, and it can be stably arranged in the crossover wire storage groove 6, and the winding work can be facilitated.

[0022]

As is apparent from the above embodiments, according to the present invention, since the main winding and the auxiliary winding are continuously wound via the connecting wire, the number of terminal pins can be minimized. Therefore, the number of man-hours for processing the crossover wire is reduced, and the lead wire of each winding is arranged in the lead wire storage groove, and the main crossover wire and the auxiliary crossover wire are arranged in the crossover wire storage groove. It is possible to provide a capacitor motor capable of avoiding deterioration of a copper wire film due to contact between wires and ensuring winding quality.

Further, a collar portion forming a lead wire storage groove,
Since one wall surface forming the crossover wire storage groove is formed in a taper shape that spreads in the outer peripheral direction toward the stator core,
The main crossover wire and the auxiliary crossover wire are pulled in the outer peripheral direction along the taper shape, and excess slack can be absorbed, so that the insulation distance can be stably ensured and the quality of the winding wire can be ensured.

Further, at the end of the film, a bent portion is formed by bending it toward the outer peripheral side at a position where a sufficient space distance from the tip of this end to the stator core can be secured, and the film holding portion and the bent portion are engaged. Therefore, it is possible to easily secure the insulation distance between the stator core and the main crossover wire or the auxiliary crossover wire passing near the bent portion.

Further, since the main crossover wire and the auxiliary crossover wire are entangled with the pillar portion provided on the outer wall portion of the insulator and the traveling direction of each crossover wire is reversed, the fixing points of the crossover wire are increased and the crossover wire storage groove is formed. Therefore, it is possible to stably arrange the wires and facilitate the winding work.

[Brief description of drawings]

FIG. 1 is a plan view showing a stator of a capacitor motor according to a first embodiment of the present invention.

FIG. 2 is an enlarged plan view showing an arrangement of crossover wires and lead wires of a stator of the same condenser motor.

FIG. 3 is a perspective view showing an inner wall portion of an insulator of a stator of the same condenser motor.

FIG. 4 is a partial sectional view showing a film position of a stator of the same condenser motor.

FIG. 5 is a developed sectional view showing winding positions from the outer peripheral side of the stator of the same condenser motor.

FIG. 6 is a perspective view showing a coil bobbin around which a winding of a stator of a conventional condenser motor is wound.

FIG. 7 is a plan view of a stator of the same condenser motor.

FIG. 8 is a perspective view showing a state in which a winding is wound around a tooth portion of a stator of the same condenser motor.

FIG. 9 is a plan view of a stator of the same condenser motor.

[Explanation of symbols]

1 Stator core 2 films 2a Bent part 3 insulator 3a inner wall 3b outer wall 4-pin holding part 5 Leader wire storage groove 5a collar part 6 Crossover storage 6a wall surface 7 pillars 7a Auxiliary upper pillar 7b Auxiliary lower pillar 7c Main lower pillar 8 Film holding part 9 slots 10 main winding 10a First main winding 10b Second main winding 11 Main crossing line 12 Auxiliary winding 12a First auxiliary winding 12b Second auxiliary winding 13 auxiliary crossover 14 Leader line 14a Main lead wire 14b Main winding end lead wire 14c Auxiliary winding start leader wire 14d Auxiliary winding end leader wire 15 terminal pins

Claims (4)

[Claims] 1. A stator core that is divided and laminated in the same number as the number of slots, a pair of films that insulate both sides of the stator core, and a resin that insulates the end faces of the stator core. A pair of insulated insulators, and a main winding in which a lead wire at the beginning and end of the winding is placed at one location of this insulator and a number of poles are continuously concentratedly wound through a main crossover wire between the poles. , The lead wire at the beginning and end of the winding is placed on the insulator at another location, and the number of poles is continuous through the auxiliary crossover wire that is placed on the side opposite to the main crossover wire in the stacking direction with the stator core sandwiched. And an auxiliary winding that is concentratedly wound, and the insulator is formed of an inner wall portion and an outer wall portion that prevent the winding from collapsing, and the lead wire of the winding is entangled at both ends of the inner wall portion. It has a pin holding part that holds the terminal pin, and is located near the bottom of this pin holding part. A stator of a capacitor motor, wherein a lead wire storage groove of a winding wire extending in a stator core lamination direction and a crossover wire storage groove between winding poles formed in a direction substantially orthogonal to the lead wire storage groove. 2. A flange portion that forms a lead wire storage groove of the inner wall portion of the insulator and one wall surface that forms the crossover wire storage groove are formed in a tapered shape that widens in an outer peripheral direction toward the stator core. The stator of the capacitor motor according to claim 1. 3. A film holding portion is provided below an inner wall portion of the insulator, an end portion of the film on an inner peripheral side of a stator core is bent to form a bent portion, and the bent portion is engaged with the film holding portion. The stator of the capacitor motor according to claim 1. 4. A prismatic columnar portion is erected at the center of the outer wall of the insulator, and the main crossover wire and the auxiliary crossover wire are entangled with the pillar portion, and the traveling direction of the crossover wire is reversed. The stator of the capacitor motor according to Item 1.