KR20010111967A - Paper structure for insulating the welding part in induction motor - Google Patents

Abstract

The present invention relates to an insulated paper structure of a welded portion of an induction motor, wherein the insulated paper insulates a welded portion in which the lead wire and the magnet wire of the induction motor are welded to each other, wherein the insulated paper is formed in the form of a sheet-shaped insulated paper in the following longitudinal direction. Heat-bond a predetermined portion of one end to form a second opening that is relatively smaller than the first opening of the other end, and insert the lead wire and the magnet wire through the first opening to position the welding portion in the center of the insulating paper. And discharging the magnet wire through the second opening.

Accordingly, according to the present invention configured as described above, only a predetermined portion of one end of the longitudinal direction of the insulating paper is heat-sealed to form an opening having a smaller size than the opposite opening, or the opening of one end of the tubular insulating paper is relatively smaller than the opposite opening. After forming small, it is possible to discharge the magnet wire through them so that the welded portion is located in the center of the insulating paper, to prevent easily detached, shorten the working time, and minimize the occurrence of defective rate.

Description

PAPER STRUCTURE FOR INSULATING THE WELDING PART IN INDUCTION MOTOR}

The present invention relates to insulated paper, and more particularly, to a welded part insulated paper structure of an induction motor that welds the lead wire and the magnet wire of the induction motor and then prevents the insulated paper which insulates the welded part from coming out.

In general, induction motors are used insulated paper to insulate the welds of the lead wire and the magnet wire.

Such insulating paper is used as the insulating paper 1 in the form of a sheet and the insulating paper 10 in the form of a tube, as shown in Figures 1a and 1b. First, the sheet-shaped insulating paper 1 has one side by which the operator places the weld 9 at the center of the insulating paper 1 and then rolls the insulating paper 1, or rolls the insulating paper 1 in a cylindrical shape as shown in FIG. 2A. After the end is heat-sealed, the weld 9 is inserted therein. And the tube-shaped insulating paper 10 is heat-sealed one end of the longitudinal direction as shown in Figure 2b and then insert the weld 9 inside.

Then, the insulating papers 1 and 10 having the welded portion 9 inserted therein are inserted into the stator end coil portion (not shown) of the induction motor.

However, such a conventional insulating paper is separated from the welding part when inserted into the stator end coil part, and even after the insertion, a little force is applied to the insulating paper when the stator end coil part is shaped, and thus the insulating paper comes out little by little and eventually the insulating paper falls out and is not insulated. There is this.

In addition, the conventional sheet-shaped insulation paper is insulated by the operator to wrap the insulation paper by hand wrapped to perform the insulation work, it is difficult to place the weld in the center of the insulation paper, unless you are a skilled worker, the longer the work time and the higher the defective rate There is a problem.

An object of the present invention is to solve the above problems, by heat-sealing only a predetermined portion of one end in the longitudinal direction of the insulating paper to form an opening smaller in size than the opposite opening or the opening of one end of the tube-shaped insulating paper Is formed relatively smaller than the opposite opening, and then the magnet wire is discharged through them so that the welded portion is located in the center of the insulating paper and is easily prevented from coming off.

In addition, when the welding portion is inserted into the insulating paper and the magnet wire is discharged through the opening, the welding portion is automatically positioned at the center of the insulating paper, thereby shortening the working time and minimizing the occurrence of the defective rate.

1A and 1B are perspective views showing a conventional insulating paper

2A and 2B are perspective views showing a state in which a lead wire and a magnet wire are inserted into a conventional insulating paper

3 is a perspective view showing a state in which the lead wire and the magnet wire is inserted into the insulating paper according to the first embodiment of the present invention

Figure 4 is a perspective view showing a state in which the lead wire and the magnet wire is inserted into the insulating paper according to a second embodiment of the present invention

<Explanation of symbols for main parts of the drawings>

5: lead wire 7: magnet wire

9: welded part 100: insulated paper in sheet form

200: tube-shaped insulating paper 110, 210: first opening

120: heat treatment unit 130, 220: second opening

Features of the present invention for achieving the above objects,

Insulation paper which insulates the welding part by which the lead wire and the magnet wire of an induction motor are welded to each other,

The insulating paper,

The sheet-shaped insulating paper is rolled into a cylindrical shape, and then a predetermined portion of one end in the longitudinal direction is heat-sealed to form a second opening which is relatively smaller than the first opening of the other end.

The lead wire and the magnet wire are inserted through the first opening, so that the welding part is positioned at the center of the insulating paper, and the magnet wire is discharged through the second opening.

Another feature of the invention,

Insulation paper which insulates the welding part by which the lead wire and the magnet wire of an induction motor are welded to each other,

The insulating paper,

It is formed in the form of a tube, the second end portion which is gradually narrowed outward to the other end, which is the opposite side of the first opening formed on one end in the longitudinal direction,

The lead wire and the magnet wire are inserted through the first opening to position the welding part at the center of the insulating paper, and the magnet wire is discharged through the second opening.

Hereinafter, the configuration and operation of the embodiments of the welded insulating paper structure of the induction motor according to the present invention will be described in detail with reference to FIGS.

<First Embodiment>

3 is a perspective view showing a state in which the lead wire and the magnet wire is inserted into the insulating paper according to the first embodiment of the present invention.

Referring to FIG. 3, the sheet-shaped insulating paper 100 according to the present invention has a cylindrical shape that is relatively smaller than the first opening part 110 of the other end by heat-sealing a predetermined portion of one end in the longitudinal direction. The opening 120 is formed.

In this state, the lead wire 5 and the magnet wire 7 are welded, and then the magnet wire 7 is turned to the opposite side of the lead wire 5 with the weld 9 as the axis, or the lead wire 5 and the magnet One end of the wire 7 is welded in a state corresponding to both sides. Then, the magnet wire 7 and the lead wire 5 are inserted through the first opening 110 to position the weld 9 at the center of the insulating paper 100, and the magnet wire 7 is positioned at the second opening 120. Through). Then, the magnet wire 7 is discharged through the second opening 120, and the weld 9 is easily fixed on the insulating paper 100 because the weld 9 is fixed by the heat-sealed portion 130 of the insulating paper 100. It does not break away.

<Second Embodiment>

4 is a perspective view showing a state in which the lead wire and the magnet wire is inserted into the insulating paper according to a second embodiment of the present invention.

Referring to Figure 4, the tube-shaped insulating paper 200 according to the present invention is formed in the form of a tube, the narrower toward the outside toward the other end of the other side opposite to the first opening 210 formed on one end in the longitudinal direction The second opening 220 is formed.

In this state, the lead wire 5 and the magnet wire 7 are welded, and then the magnet wire 7 is turned to the opposite side of the lead wire 5 with the weld 9 as the axis, or the lead wire 5 and the magnet One end of the wire 7 is welded in a state corresponding to both sides. Then, the magnet wire 7 and the lead wire 5 are inserted through the first opening 210 to position the weld 9 at the center of the insulating paper 200, and the magnet wire 7 is positioned at the second opening 220. Through).

Then, since the magnet wire 7 is inserted into the second opening 220, the welding part 9 and the insulating paper 200 are not easily separated.

As described above, according to the insulated paper structure of the welded part of the induction motor according to the present invention, only a predetermined portion of one end of the longitudinal direction of the insulated paper is heat-sealed to form an opening having a smaller size than the opposite opening, or one side of the tube-shaped insulated paper. The openings at the ends are formed relatively smaller than the opposite openings, and then the magnet wires are discharged through them so that the welds are located at the center of the insulating paper and can be easily prevented from coming off.

In addition, according to the present invention, by inserting the welding portion in the insulating paper and the discharge of the magnet wire through the opening to automatically position the welding portion in the center of the insulating paper can shorten the work time, it is possible to minimize the occurrence of defective rate.

Claims (2)

Insulation paper which insulates the welding part by which the lead wire and the magnet wire of an induction motor are welded to each other, The insulating paper, The sheet-shaped insulating paper is rolled into a cylindrical shape, and then a predetermined portion of one end in the longitudinal direction is heat-sealed to form a second opening which is relatively smaller than the first opening of the other end. Inserting the lead wire and the magnet wire through the first opening portion to position the welding portion in the center of the insulating paper, and the welding portion insulating paper structure of the induction motor, characterized in that for discharging the magnet wire through the second opening. Insulation paper which insulates the welding part by which the lead wire and the magnet wire of an induction motor are welded to each other, The insulating paper, It is formed in the form of a tube, the second end portion which is gradually narrowed outward to the other end, which is the opposite side of the first opening formed on one end in the longitudinal direction, Inserting the lead wire and the magnet wire through the first opening portion to position the welding portion in the center of the insulating paper, and the welding portion insulating paper structure of the induction motor, characterized in that for discharging the magnet wire through the second opening.