JPS614430A - Stator of rotary electric machine - Google Patents

Abstract

PURPOSE:Not to need the bending work of terminal segments, by a method wherein a lead conductor connecting section is provided on a fixing section of a terminal bed of the terminal segment and the extended section of the terminal segment toward the circumference of the terminal bed through the fixing section is organized to be cut off. CONSTITUTION:A terminal segment 15 is provided with a click 16b for being fitted and connected to a lead conductor 3 at the position meeting an opening section 9 of a terminal bed cover 7 for a fixing section 15a on the surface of the terminal bed 4. And the terminal segment 15 has the extended section 15b toward the circumference outside the terminal bed 4 through the fixing section 15a. And a lead conductor 3 is connected to be hooked up with the click 16b for the terminal segment 15 fixed on the terminal bed 4 with the fixing section 15a. After that, the lead conductor 3 is welded to be fixed to the terminal segment 15. After the welding is completed, the extended section 15b of the terminal segment extending from the circumferential surface of the terminal bed 4 is cut off. As the result, the bending work of terminal segments and insulating tubes segments and insulating tubes cannot be needed.

Description

[Detailed Description of the Invention] <Technical Field of the Invention> The present invention relates to a stator for a rotating machine such as a small electric motor, and in particular,
The present invention relates to a conductor connection structure that facilitates connection between an extremely thin conductor on the stator coil side and a relatively thick conductor on the power supply side.

<Prior art> A conventional example of the conductor connection structure in this type of stator is shown in Figure 1~
It is shown in Figure 3. That is, in the figure, 1 is a stator core, 2 is a stator coil, 4 is a terminal block attached to the coil end 2a side of the stator coil 2, and 5 is a conductor 3 leading out of the stator coil 20.
is a terminal piece to which is connected, and is fixed to the terminal block 4. 7 is a plate member that holds a power supply side conductor (hereinafter referred to as lead wire) 8;

This terminal block cover is provided with an opening 9 that exposes a lead wire portion 10 that becomes a connecting portion with the terminal piece 5.

In the above configuration, the following configuration has conventionally been adopted as a structure for connecting the lead conductor 3 to the terminal piece 5.

That is, the terminal piece 5 has an extension part 5b extending from the fixing part 5a to the terminal block 4 in the outer peripheral direction of the terminal block 4, and this extension part 5b
It has a claw 6a&.

Then, the five-outlet conductor 3 is hooked onto the wind 6a, engaged and connected, and then welded by sandwiching this part between a pair of electrodes 13'a' and 13b of a fusing welder, as shown in FIG. It is designed to be fixed to the terminal piece 5. After this, in order to prevent contact between the extension part 5b of the terminal piece 5 and the outer shell and coil end 2a of the motor and to ensure an insulation distance, an insulating tube 12 is attached to the extension part 5b of the terminal piece as shown in FIG. Then, the extension portion 5b is bent toward the coil end 2a side.

However, with the above configuration, when the extension part 5b of the terminal piece 5 is bent, the lead conductor 3 may be broken or the terminal piece 5 may be bent, resulting in poor quality. Ta. In addition, the insulating tube 12 is connected to the extension part 5b.
A process for covering the insulating tube 12 is required, which increases the manufacturing time and increases the material cost of the insulating tube 12, which is disadvantageous in terms of manufacturing cost.

<Summary of the Invention> Therefore, in view of the above-mentioned conventional circumstances, the present invention provides a single-output conductor connecting portion at the portion where the terminal piece is fixed to the terminal block, and connects the terminal piece from the fixed portion of the terminal piece to the outer circumferential direction of the terminal block. This paper proposes a stator for rotating electric machines that has a configuration in which the extension of the terminal is cut, thereby eliminating the need for bending terminal pieces and insulating tubes, thereby improving quality and reducing manufacturing costs.

<Embodiment of the Invention> An embodiment of the present invention will be described below with reference to FIGS. 4 and 5. In these figures, the same elements as in FIGS. 1 to 3 are given the same reference numerals to simplify the explanation.

In FIGS. 4 and 5, the terminal piece 15 is
The fixing portion 15a to the surface of the terminal block 4 has a claw 16b for engaging and connecting the lead conductor 3 at a position that matches the opening 9 of the terminal block cover 7.

Further, the terminal piece 15 has an extension portion 15b extending from the fixed portion 15a toward the outer circumference of the terminal block 4.

Then, fix it to the terminal block 4 by holding the fixing part 15a.
The lead conductor 3 is hooked onto the claw 16b of the terminal piece 15 in the 9-folded state to make an engagement connection. After this, as shown in FIG. 5, electrodes 14a are placed on the extension part 15b of the terminal piece 15 above and below the fusing welder.

14b, and the other of the electrodes 14a, 14b with the claw 1.
Weld by pressing it onto part 6b from above.

The lead conductor 3 and the terminal piece 15 are fixed.

After the above welding is completed, the extension part i that protrudes from the peripheral surface of the terminal block 4
Cut sb.

According to this configuration, the terminal piece 15 is provided with a claw 16b for engaging and connecting the lead conductor 3 on the side of the fixed part 15a to the terminal block 4, and an extension part 15b that is cut after the welding work. Because of this, there is no need to bend the terminal pieces as in the past, and it is possible to prevent disconnection of the lead conductor and breakage of the terminal pieces, improving quality, and eliminating the need for insulating tubes. Not only can the number of steps for this purpose be reduced, but also material costs can be reduced, thereby making it possible to keep manufacturing costs low.

<Effects of the Invention> As explained above, according to the present invention, a lead-out conductor connection portion is provided at the portion where the terminal piece is fixed to the terminal block, and an extension portion extending from the fixed portion of the terminal piece toward the outer circumferential direction of the terminal block is provided. The cutting configuration makes it possible to eliminate the work of bending the terminal piece and eliminate the insulating tube, thereby improving quality and reducing manufacturing costs.

[Brief explanation of drawings]

1 and 3 are perspective views showing the structure of a stator of a conventional rotating electric machine, FIG. 2 is a vertical sectional view of the same stator, and FIG. 4 is a perspective view showing the structure of a stator according to the present invention. FIG. 5 is a longitudinal sectional view of the stator same as above. 1... Stator core 2... Stator coil 2a
...Coil end 3...Leading conductor 4...
・Terminal block 7...Terminal block cover 8...Lead wire
9... Opening 15... Terminal piece 15a...
・Fixed part 15b... Extension part 16b... Claw agent Masuo Oiwa (and 2 others) Figure 1 Figure 2 Figure 3 1Z k Figure 4

Claims (1)

[Claims] A terminal block attached to the coil end side of the stator coil;
an opening that is fixed to the terminal block and consists of a terminal piece to which the lead-out conductor of the stator coil is connected, and a plate member that holds the power supply side conductor, and exposes the power supply side conductor portion that becomes the connection part with the terminal piece; A stator for a rotating electric machine, which is equipped with a terminal block cover having a terminal block cover, and the terminal block is fixed to the surface of the terminal block at a position that matches the opening for engaging and connecting the lead conductor of the stator coil. What is claimed is: 1. A stator for a rotating electric machine, characterized in that the stator has a claw and an extension part that extends from the fixing part toward the outer circumference of the terminal block and is cut after the lead conductor and the claw are welded and fixed.