JPS5928857A - Winding device of stator coil - Google Patents

Abstract

PURPOSE:To improve the space factor of a stator coil by providing guide means for guiding electric wires from a nozzle in aligned state in a slot at the axial end of a stator core. CONSTITUTION:Guide means for guiding electric wires 4 from a nozzle 2 in aligned state in a slot 1a is provided at the axial end of a stator core 1. This guide means is provided through the prescribed interval 1b between the means and a slot wall at the axial end of the core 1, moved from the bottom side of the slot 1a to the opening side, and formed of a former 5 which guides the electric wires 4 from the nozzle 2 through the interval 1b on the wound part in the slot of the prescribed size formed sequentially from the bottom side of the slot. Thus, the wires 4 are not crossed in the slot 1a, and can be wound in high density, thereby improving the space factor of the coil.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a stator coil winding device, and more particularly to a stator coil winding device having a nozzle for supplying and winding an electric wire into a slot.

In the conventional stator coil winding device, the needle is
It was formed with a movable nozzle with 1Iiii. That is, as shown in FIG. 2, the stator core 1 (
A stator coil was manufactured by supplying a wire 4 from the needle 3 at the tip of the nozzle 2 to the slot 1α of the needle 3 (see Figure 1). ] between the respective slots 1α which are provided through the radial ends of the
Along one direction, indicated by an arrow in the figure 2], L D t
Ill progression, due to rotation movement? jl! Move the i ring and continuously supply the electric wire 4 into the stator pL (-1 wire 4 is combined into the stator coil by winding it in the -1 node Ia, where -r4 this 1 When winding it with the chronograph 1, the - is rotated and the 4 is free within 1α, so the 1+lf and BAA 4 move and intersect within the chronograph 1 bow α. , ii'J dead space for this intersecting portion increases. Compared to the method in which a stator coil made by winding a fixed volume of I9 on a separate winding frame is inserted into slot 1a, stator core 1 has +lj, +W4.
Although this method improves productivity by directly winding the stator coil, it has the drawback that it requires a large amount of put space, which reduces the space factor of the stator coil and reduces the performance of the motor. .

The present invention has been developed in view of the following points, and its purpose is to provide a winding device for a stator coil that can improve the space factor of the stator coil. There is something to do.

That is, the present invention is characterized in that a guide means is provided at the axial end of the stator core for guiding the electric wires from the nozzle into the slots in an aligned state.

In the following, the invention will be explained based on the illustrated embodiment flJ. An embodiment 1+11 of the present invention is shown in FIGS. 3 and 4. FIG. Note that the same parts as in the conventional model are given the same reference numerals, so their explanation will be omitted. In this embodiment, a guide means is provided at the axial end of the stator core l for guiding the electric wires 4 from the nozzle 2 into the slots la in an aligned state. By doing this, the electric wire 4 is wound tightly within the slot 1 without any space, and the winding of the stator coil makes it possible to improve the space factor of the stator coil. You can get the equipment.

That is, a guide means is provided at the axial end of the stator core 1 with a predetermined gap 16 between it and the slot wall, and is moved from the bottom side of the slot 1α to the opening side of the slot lc. The electric wire 4 from the nozzle 2 is inserted into the winding part in the slot la of a predetermined size created from the bottom side with a gap 16.
It was formed using a humema 5 that was guided through the. At the beginning of winding the stator coil, vj, the former 5 is wound so that its lower straight part touches the bottom of the slot lα'
l+<, fixed so that it is located 1·111 or more above one line 4, and the distance between it and the slot wall is 111λ161t;)
: Changed the direction to be on the 1st radius side. In this way, the electric wire 4 drawn out from the needle 3 by the forward rotational movement of the nozzle 2 and guided into the slot ]a from the gap 16 has a radially inward direction of the stator core l in the slot ]71. Because the force is working, 11. ; Yarn i14 i(+, from the outer diameter side of the slot 1a by the former 5 to the inner diameter < til
It is guided by +tC< and aligned with the winding part in the slot 1α, which is regulated by the bottom f-75 of the slot 1cL. When this winding portion is completely filled with the wound wire 4, the number axis of the former 5 is moved along the slot a in the direction indicated by the arrow in the former ib1. +11i
l 1Ilr<, and set Humema 5 to the above 'ili 1
At fJII4, a winding part with a thickness of approximately one electric wire 4 is formed between the winding part and the winding part r. Fix it in the L position. Then, the electric wire 4 is wound around this wound portion in the same manner as described above. This 1:1 operation is repeated l1fj to form a stator coil by winding a predetermined number of turns. In this way, since the former 5 guides the 'iic wires 4 in the slot 1α in an aligned state and winds them, the wires 4 do not cross each other in the slot 1α, and the
The wire 4 can be wound with high density, the space factor of the wound stator coil can be improved, and the performance of the electric motor can be improved.

In FIGS. 5 and 6, i#, , l: Another embodiment of the present invention is shown. In this embodiment, the guide means is formed by a former 5 and a finger 6 provided near the axial end of the stator core 1, movable in the radial direction and up and down, and supporting and guiding the 11f wire 4 from the nozzle 2. did. This is effective when inserting the electric wire 4 into the slot 14 from the inner diameter 9 (1) of the stator core 1 and winding it.In other words, the electric wire 4 is inserted from the inner diameter side of the stator core 1 into the slot 1n. When the electric wire 4 is inserted and wound, no force is applied to the electric wire 4 in the direction of the outer diameter of the stator core 1, so the former 5 and the fingers 6 guide the electric wire 4 to a predetermined position in the direction of the outer diameter inside the slot la. In this case as well, the same effects as in the above case can be achieved.

As stated in 71.: Invention t, l1, since a guide means is provided at the axial end of the stator core to guide the electric wires from the nozzle in an aligned state within the slot, the electric wires are placed inside the slot 2). A stator coil winding device that allows the wires to be wound in an aligned manner, eliminating the crossing parts of the right wires within the wires and improving the space factor of the stator coil. 1'1° total (
! ) can be done.

4. Sections 11'i-6 of the drawings (1) Fig. 11: Illustration of the stator core of the stator coil winding device, Fig. 2 i1: Winding of the conventional stator coil winding device. n
Fig. 3 is a perspective view showing the winding state of one embodiment of the stator coil winding device of the present invention, and Fig. 4 shows the same implementation. A front view of the stator core showing the installation state of the example former; FIG. 5 shows the winding state of another embodiment of the stator coil winding device u of the present invention); FIG. 6 is a diagram of another embodiment.
1177 is a front view of the stator core showing the installation state of the stator core. FIG.

10. Stator core, 1α0. slot, 1600 gap,
29. nozzle, 4. , ilQ line, 50. Forma, 68
．． finger.

Special agreement applicant name: Hitachi Koki Co., Ltd. 2nd mouth age 4 (2)

Claims (1)

[Scope of Claims] /, A rigid cable is provided at each radial end of the apricot iron core and passes through the slots y1 by 1° in the +l11 direction. Supply and wind the stator coil,! ! In a stator coil winding device having a nozzle to create a stator coil, a guide hand 1 is provided at the end of the stator core in the 1 direction to guide the front distribution line from the nozzle in an aligned state in the front 11 system slot. 2. A stator coil winding device t″it characterized by a stator coil winding device t″it. The bottom of the slot (1111
The electrical wire from the nozzle is guided through the gap to the winding part in the slot of a predetermined size created sequentially from the bottom side of the slot by moving to the opening 1-1 side. A stator coil winding device according to claim 1, which is formed of a former. 3. The guide means is provided near the axial ends of the former and the stator core, is movable in the radial direction downward, and guides the line from the nozzle. A stator coil winding device according to claims 1 and 2, wherein the stator coil winding device is formed by supporting and guiding fingers.