JPS59209047A - Winding method of motor stator - Google Patents

Abstract

PURPOSE:To wind many coils with an inexpensive device by sequentially winding the first and second stator cores, and drawing the first and second crossover tracks by drawing tools arranged between the stator cores. CONSTITUTION:The end 6a of a wire 6 from a flier 5 is clamped by a clamper 7, and started to wind from the first core 1. Then, the flier 5 is moved, and the first coil is wound through the first crossover track 6d to the second stator core 2. The flier 5 is again moved through the second crossover track 6c to the first stator core 1 side. In this case, the track 2c is drawn by a drawing tool 18, as a tap drawing wire. Subsequently, the second coil is wound from the first stator core 1 by the same method as the first coil, and wound through the crossover track 6d to the second stator core 2. In this case, the second crossover track 6c and the drawing amount are altered to draw the second crossover track 6e as a tap drawing wire.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a method for winding a stator of a small electric motor used as a fan drive source for air conditioning equipment.

Conventional configurations and their problems In recent years, demands have become stronger for electric motors to be smaller and lighter, as well as thinner. Motors that have toroidal windings perpendicular to the yoke of each throat to promote thinner motors, as well as to reduce phase costs and increase efficiency, are attracting attention.

Generally, in the case of a small electric motor for driving a fan, it is common to wind several types of speed adjustment coils in the same slot and change the taps to adjust the speed, but it is also possible to combine the divided stator cores. However, it takes a lot of effort to identify and connect the coils that occur depending on the number of speed adjustments, and this causes trouble in the connection work after winding.

On the other hand, easy ways to identify each coil include changing the color of the wire of each coil or marking both ends of the coil, but in the former case, the wire diameter and number of coils Depending on the wire, wires of different colors must be kept in stock, or the winding device must be changed depending on the wire.
Or you may need to replace the wires. In addition, the latter method has the disadvantage that manual work is required, and in any case, the production efficiency is extremely low.

An example of a method of winding a motor stator that has been proposed in the past as a means of solving this problem of poor production efficiency will be described below with reference to the drawings.

1 to 4 show the winding state of the motor stator. 1 to 4, 1 is a divided first stator core, 2 is a divided second stator core, and 1 is a divided first stator core.
An annular stator core is formed by joining the stator core 1 with the stator core 1. 3 is a holder for holding the stator cores 1 and 2 in the windings, 4 is a magnet embedded in the holder 3, and 5 is for winding the electric wire 6 into the slots of the stator cores 1 and 2. Fryer, 7 is a clamper that grips the tip of electric wire 6, 8
is a drawer for pulling out the tap.

The operation of the conventional motor stator winding method configured as described above will be described below.

Instead, the tip 6a of the electric wire 6 coming out from the fryer 5 in Fig. 1 is re-clamped by the clamper 7 at an appropriate position.
Slot 1 farther from flyer 5 of first stator core 1
Start winding from point a, and wind at least one turn less than the specified number of turns to be wound. Next, an indexing device (not shown) linked to the holder 3 indexes (moves) the stator core by an amount corresponding to one slot, and winds it around the slot 1b in the same manner as the slot 1a. Below, while moving one slot at a time, the last slot 1di
', and wrap it around. After that, reversely from slot 1d, each slot h1d, 1
c, while winding around 1b, turn back and wind up to 1a, and wind all the slots the specified number of turns.Next, as shown in Figure 2, raise the flyer 5 or The holder 3 is lowered to secure the crossover wire 6b from the first stator core 1 to the second stator core 2, and the wire is wound around the second stator core 1. Then, the electric wire 6 is wound around the second stator core 2 in the same order as explained for the first stator core 1, and when it is unwound to the position 2a, the winding is stopped. This completes the first coil.

Next, the electric wire 6 at the end of 20 turns of the second stator core is
As shown in the figure, the electric wire 6 is cut and pulled out to a certain length using the pulling tool 8, and this is used as a tap lead-out wire 6C for speed adjustment.

Next, the winding of the second coil is started from the second stator core 2, and is wound a specified number of turns in the same manner as the winding of the first coil, and the crossover wire 6d is connected as shown in FIG. 10 windings of the first stator core are performed through the tap, and the tap lead wire 6e is taken out using the lead-out tool 8.

By repeating such an operation, it is possible to continuously wind the crossover wire between the ``th stator core 1'' and the second stator core 2 without cutting it. By arranging a drawer 8 for drawing out the taps, the tap drawer lines 6c and 6e can be easily drawn. In addition, after completing the coil winding for the specified number of turns, the coil terminal processing device (
(not shown), the wire 6z at the end of the winding is cut and processed.

However, in the conventional method as described above, when manufacturing multiple types of stators having 1 to 4 speed adjustment coils, such as small electric motors for driving fans, the winding end of each coil is Since the position differs depending on the number of coils, the winding program that controls the operation of the holder and fryer must be changed when winding an odd number of coils and when winding an even number of coils. However, since pull-out tools must be provided separately on the upper and lower sides, the winding device becomes very complicated and has the drawback of increasing equipment cost.

OBJECT OF THE INVENTION The present invention aims to solve the above-mentioned drawbacks of the prior art, and provides an inexpensive winding device that can be easily tapped regardless of the number of coils to be wound and that is equipped with a simple pull-out device. The present invention provides a method of winding a motor stator that can be realized with a device.

Structure of the Invention The method of winding a motor stator of the present invention includes winding a first stator, winding a second stator via a first crossover wire, and winding a first coil. ends. Next, the winding of the second coil is started from the first stator via the second crossover wire, and ends with the winding of the second stator via the first crossover wire. Repeat the above two operations to form several types of coils in the same slot.

Further, this second crossover wire is characterized in that it is a tap for speed adjustment.

DESCRIPTION OF EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 6 shows the winding state of a winding device for carrying out the motor stator winding method according to an embodiment of the present invention. In Fig. 5, 1 is the first stator core, 2 is the second stator core, 3 is the holder, 4 is the magi throat, 6 is the flyer, 6 is the electric wire, and 7 is the clamper, which is one or more The parts are similar to those shown in FIGS. 1-4. Further, 18 is a pull-out tool disposed between the first stator core 1 and the second stator core 20.

The operation of the method of winding the motor stator in the state configured as above will be described below.

First, the first coil is
Wind it in the same way as explained in the figure.

That is, the tip 6a of the electric wire 6 coming out of the flyer 6 is clamped by the clamper 7, winding is started from the first stator core 1, and then the flyer 5 or the holder 3 is moved to complete the first crossing. Winding is performed on the second stator core 2 via the wire 6b, and the winding of the first coil is completed.

Next, as shown in FIG.
Move it through c.

At this time, the second crossover wire 6c is connected to the first stator core 1 and the second
It is grasped by a pull-out tool 18VC disposed between the stator core 2 and pulled out to an appropriate length, and this is used as a tap leader wire.

Next, as shown in Fig. 6, the second coil is wound around the first stator core 1 in the same manner as the first coil, and then the 7-layer 6 or the holder 3 is moved. Then, winding is performed on the second stator core 2 via the first crossover wire 6d, and the winding of the second coil is completed.

Next, the fryer 5 or the holder 3 is again moved to the first stator 1 side via the second crossover wire 6e. On this occasion,
The pulling tool 18 changes the amount of pull out of the second connecting wire 6c mentioned above, grips and pulls out the second connecting wire 6e, and uses this as a tapped leader line.

By repeating the winding operation described above a predetermined number of times,
A predetermined number of types of coils are wound around the same slot.

After winding the coil for a specified number of turns, the wire 6z at the end of winding is cut and processed by a coil end processing device (not shown).

As described above, according to this winding method, while repeatedly moving the flyer 5 or the holder 3, the first... The second connecting wire 6c of the first connecting wires 6b, 6d and the second connecting wires 6c, 6B which are sequentially wound around the second stator cores 1, 2 and generated at this time.

6e is grasped and pulled out using a pull-out tool 18 disposed between the first stator core 1 and the second stator core, thereby making it possible to easily take out a tap for speed adjustment. By appropriately changing the withdrawal amount, each tap can be distinguished. Therefore, according to this motor stator winding method, a large number of coils can be wound with an inexpensive winding device equipped with a simple pull-out tool.

Although this embodiment describes a two-pole motor in a single-phase induction motor, it is possible to wind a four-pole motor using the same concept. According to the method, the second of the first and second crossover wires generated by repeated movement of the divided fixed j-core iron core-7 lyers or stator core. By using the crossover wire as a tap for speed adjustment, the configuration of the pull-out tool can be made into a simple and inexpensive winding device. In such a stator, the effect is great.

[Brief explanation of the drawing]

Figure 1 shows the first method of winding a motor stator according to a conventional example.
Figure 2 is a perspective view showing the state of the first coil at the beginning of winding, Figure 3 is a perspective view showing the state of the first coil at the end of winding, and Figure 3 shows the state of tapping after the winding of the first coil is completed. 4 to 4 are perspective views showing a state in which the tap is removed after winding of the second coil is completed, and FIG. A perspective view showing the state of taking the tap after the end of the round, Fig. 6 (l-i 2nd
FIG. 6 is a perspective view showing a state in which a tap is removed after the winding of the th coil is completed. DESCRIPTION OF SYMBOLS 1... First stator core, 2... Second stator core, 3... Holder, 5... Flyer, 6
...-Electric wire, 18...--Drawer. Name of agent: Patent attorney Toshio Nakao and 1 other person No. 1
Figure 2 Figure 3 Figure 4 Figure 5 Figure 6 Procedural amendment 1983 31) 413 Patent 7p Director-General of the Office 1 Case Indication 1988 Q1 Permit No. 83032 2 Name of the invention;
Person who corrects motor stator winding method 3 9', 1''
Application Address: 1006 Kadoma, Kadoma City, Osaka Name (582) Matsushita Electric Industrial Co., Ltd., 7 (Person: Shun Yamashita)
Hiko 4 Agent Address: 6, Matsushita Electric Industrial Co., Ltd., 1006 Oaza Kadoma, Kadoma City, Osaka Prefecture, 571 Contents of the amendment (1) Section ``2. Scope of claims'' in the specification has been amended as shown in the attached sheet. vinegar. (1 stator" in lines 13-14 on page 7 of the same book is corrected to "stator core.") ”. (→ Correct “stator” on page 7, line 17 of the specification to “stator core.” ○ (→ Correct “stator” on page 7, line 19 of the same document Correct it as "stator iron flooding" and remove it. 0 2,Special!r 1i7 Wound the ?tf wire in each slot of the stator core divided into two parts so as to be orthogonal to the yoke part. When doing so, the first stator a
The starting length of winding on the core is to start winding from the slot farthest from the winding flyer, and to sequentially wind the winding in the predetermined slots with at least one turn less than the prescribed number of turns to be wound in each slot 4σ. Next, the number of turns that are insufficient to the specified number of turns is sequentially wound 4 times, and the slot at the beginning of the winding ((return), Finish winding the specified number of turns, then move the flyer or the C fixed precombustion r7 side, and wind the winding around the second stator core far from the flyer via the first crossover wire. From the slot, proceed in the same manner as for the first stator iron, and
1J Make the winding end slot and the winding start slot of the second stator core the same, finish the winding on the second stator core, and then turn the first coil into a shape bV, L, and then again. The flyer or stator conversion 11ill 4r) is moved, and returned to the original 1) II first stator core side via the second crossover wire, and then the same as the width of the first coil. A method of winding a motor stator, in which several types of coils are formed in the same slot by repeating the above operation several times, and the second crossover wire is pulled out with a pull-out tool, and is used as a tap for speed adjustment.

Claims (1)

[Claims] When winding the electric wire perpendicularly to the yoke in each slot of the stator core divided into two parts, the winding on the first stator core begins at the slot farthest from the winding flyer. At the same time as winding is started, the winding is sequentially performed in the predetermined slots with at least 1 turn less than the specified number of turns to be wound for each slot, and then the portion that is short of the specified number of turns is sequentially turned back and wound. , return to the starting slot of winding, 1., complete the winding of the specified number of turns around the first stator core, and then move the flyer or stator side, The windings on the second stator core are routed through the first wire to the first slot farther from the flyer.
The winding end slot and the winding start slot of the second stator core are made the same, the winding around the second stator core is completed, and the first coil is Then, move the fryer or stator side again, return to the original first stator side via the second crossover wire, and then wind the first coil in the same manner as above. A method of winding a motor stator in which several types of coils are formed in the same slot by repeating the same operation several times, and the second crossover wire is pulled out with a pull-out tool to serve as a tap for speed adjustment.