JPS5843107A - Coil inserting device for rotary electric machine - Google Patents

Abstract

PURPOSE:To enable to insert a coil without causing a flaw on a slow insulating sheet even if the space factor of the coil in a slot abnormally becomes high by disposing a slot groove insulating sheet protecting gold and a coil forming gold around a stationary core. CONSTITUTION:A slot groove insulating sheet protecting gold 9 is provided on the slot groove insulating sheet 2 of a stationary core 1, and the outer periphery of the gold 9 is divided into a plurality of segments. Coil forming golds 10, 11 at opposite coupling side and coupling side are divided into a plurality of gold segments, and the inner end periphery of the gold 11 is formed as a coil retainer. When outer and inner layer coils 7, 8 are inserted, the golds 9, 10, 11 are mounted on the core 1, are arranged on a wedge guide 5 along the blade 4 of a coil insert tooling 3, and are anchored by a retainer. A pressing element 6 of the is raised along the blade 6, and the coil 7 is contacted at the outer periphery with the gold 11 so that the inclining angle is reduced to theta deg.. Further, when the coil is projected into the insulating sheet, it is protected by the gold 9. The coil 8 is preferably inserted similarly to the coil 7, tooling 3.

Description

[Detailed Description of the Invention] This BA relates to a winding insertion device for press-inserting multiple layers of coils into the slot grooves of a stator core in a one-rotation electric machine, and particularly improves the ease of inserting the coils. Related to a winding insertion device 0 Conventionally, there has been a device of this type as shown in FIG. In the figure, (1) is the stator core, (2) is the slot groove insulating paper inserted into the slot groove of the stator core (1),
(3) is a tooling of a tightening insertion device, that is, a coil inserter, and a blade (4) corresponding to the inner circumference of the stator core ('1) is arranged on the upper part.
The wedge guide (5) and the wedge guide (5) are arranged on the outside of the blade (4). The blade (4) guides the inserted coil, and the wedge guide (5) engages with the coil and guides the inserted wedge (not shown).0 (6) is the blade (4).
9. It is a presser disposed on the inner circumference of the blade and has fins between the blades. The outer layer coil (7) is inserted into the left half of l'-1 in the conventional device shown in
) shows a state in which the blade (4) is hung at a predetermined position. Figure 1 1 = The inserted outer layer coil (7) in the right half is expanded in the outer circumferential direction by an intermediate molding machine, forming the non-connection side outer layer coil (7a) after molding and the connection side outer layer coil after molding. (7b) and shown placed in engagement with the blade (4) onto the top of the wedge guide (5) of the coil inserter tooling (3) for inserting the inner layer coil (8). Next, the operation of the conventional device shown in FIG. 1 will be explained. First, in FIG. 1, a presser foot (not shown) operates on the upper outer periphery of the stator core (1).

Next, the presser (6), which receives appropriate pressure from the lower part of the inserter tooling (3), moves up along the plate (4), and as shown in the left half of Figure 1-1, the outer layer is removed. Insert the coil (7) inside the predetermined slot groove insulating paper (2) of the stator core (1), and then insert the inner layer coil (8) into the predetermined slot as shown in the right half of Figure 1-i. Insert it inside the slotted insulation paper (2).

At this time, wedges are inserted all together to prevent the coil from coming off in the inner circumferential direction.

Since the conventional winding insertion device is configured as described above, the inserted coil has an inclination angle of 09, and in the state shown in the left half of Fig. 1-1, the coil is inserted into the slot groove. After hitting the bottom, the angle of inclination becomes smaller p, Figure 1 1-
In the state shown in Figure 1, the outer layer coil (yb) on the wiring side
The wedge guide (
5) and is inserted between the two. For this reason.

As the space factor of the coil in the slots and grooves increases, as shown in Figure 2, the slot groove insulating paper (2) is coated with the edges of the slot groove side surfaces on the connection side of the lower surface of the stator core (1). There was a problem in that scratches (2a) caused by the coil were likely to occur.

This invention was made in order to eliminate the above-mentioned drawbacks of the conventional ones, and it consists of slot groove insulating paper protection metal (9) and coil molding metal (a, al) around the stator core (1)'. By arranging the windings, the coil inclination angle can be made small even if the space factor of the coil in the slot groove becomes abnormally high, and a winding insertion device that can insert the coil without damaging the slot insulating paper is provided. It is intended to.

An embodiment of the present invention will be described below with reference to the drawings. Third
Figure 1 shows an embodiment of the present invention, in which parts that are the same as or corresponding to those in Fig. 1 are given the same reference numerals. In the figure, (9) is a slot-groove insulating paper protection gold whose outer periphery is divided into a plurality of pieces. all are.

(111 is the coil outer molding metal on the connection side, and the corner on the inner periphery of its tip is a rounded coil holding part (lla). In Fig. 3, U
The left half of I-m shows the state in which the outer layer coil (1) is inserted, and the state in which the inner layer coil (8) is inserted in the I-1 left half. In addition, the coil outer molding metal 00. (11) are each divided into a plurality of 0. Next, the operation of this embodiment device will be explained. First of all,
When inserting the outer layer coil ()) or the inner layer coil (8) with such an insertion device, attach the slot groove insulating paper protection metal (9) to the stator core (1) together with the coil outer molding metals a* and aυ. , In this state, coil inserter tooling (
3) is placed on the top of the wedge guide (5) along with the blade (4), and the top is fixed with a presser foot (not shown).
Next, the presser (6), which has been appropriately suppressed from the lower part of the coil inserter tooling (3), rises along with the blade 14), as shown in the left half of Figure 3-1. In this case, as the presser (6) rises, the upper part of the outer periphery of the outer layer coil (7) hits the coil suppression part (bit 1a) of the connection side coil outer molding metal (In), and the inclination angle is reduced to 02. When entering the slot groove insulating paper (2), the insulating paper (2) is protected by a protective metal (9) so that it does not fall down and get scratched at the slot groove edge.
Even in the state shown in the right half of Figure J-1, the inner layer coil (
8) has good insertability similar to the outer layer coil (7).

In the above embodiment, after installing the slot groove insulating paper protection metal (9) and the outer molding metal (Iυ) on the stator core 1), the coil inserter tooling (3) was set.
After setting the stator core to the coil inserter tooling (3), install the protective metal (9) and the outer molding metal a.

(II) may be installed seven times.

Further, in the above embodiment, the slot groove insulating paper protection metal (9) and the outer molding metal (TO, ALL) are integrally operated at the same time, but it goes without saying that they may be operated separately.

In addition, this insertion device can insert both outer and inner layers at the same time.
It can also be used in 3-phase rotating city machines consisting of outer, middle, and inner layer coils.

As described above, according to the device of the present invention, it is possible to easily insert a coil even in a stator with an abnormally high space factor of the coil in the pasted slot groove, and it is possible to easily insert the coil after inserting the coil as in the past. It saves you a lot of effort and produces high quality products.

It has become possible to easily make it into an automated device.

[Brief explanation of the drawing]

Fig. 1 is a cross-sectional side view showing a conventional winding insertion device, Fig. 2 is a perspective view of slot groove insulating paper with scratches due to insertion,
FIG. 3 is a sectional side view showing a winding insertion device according to an embodiment of the present invention. In the drawings, the same or corresponding parts are denoted by the same reference numerals. Agent Fugi Kuzuno - Figure 1

Claims (1)

[Claims] In a winding insertion device for a rotating electrical machine that inserts a stator coil consisting of a multi-layered coil end into a stator core, this device is used to protect the slot groove insulating paper inserted into the slot groove of the stator core. A slot groove insulating paper protection plate attached to the stator core and divided into multiple pieces, and a coil holding part on the inner circumference □ section, which is divided into multiple pieces and attached to the stator core, are used during molding. A winding insertion device for a rotating electrical machine, comprising an outer molding metal for regulating the outer diameter of the coil.