JPS5918941B2 - Manufacturing equipment for armature coils used in axial gap type electric motors - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an apparatus for manufacturing an armature coil that is extremely effective for use in an axial gap type electric motor.

The above-described motors include commutator type and brushless type (semiconductor motors), but in both types of motors, the armature coil needs to be fan-shaped and flat.

For this reason, there is a drawback that the effective length of the conductor in the radial straight portion, which is effective for output torque, is small.

When making a main body with a small diameter, the above-mentioned effective length becomes particularly small, which has the drawback of causing a decrease in output torque and deterioration of efficiency.

The armature coil produced by the apparatus of the present invention eliminates the above-mentioned drawbacks and also has several features described below.

That is, firstly, since the outer peripheral portion protrudes in the perpendicular direction like an eave, the mechanical strength of the disc-shaped armature and armature coil can be significantly strengthened.

Second, the output torque can be increased even if the diameter of the main body is reduced.

Thirdly, since the diameter of the armature can be made relatively small, dynamic balance can be easily achieved.

Particularly in the case of low-speed electric motors, there is no need for balance because there is no magnetic core in the armature.

Fourthly, since the conductor on the outer periphery of the armature coil can be made small, copper loss is reduced and efficiency is improved.

Fifth, in the case of a motor with a large output, the diameter of the armature becomes large and the mechanical inertia increases, but the armature coil according to the present invention has a small diameter up to the outer periphery, so it is effective in reducing inertia. .

Sixthly, as will be described later, it is extremely mass-producible, and therefore can be produced at low cost and in large quantities.

In order to understand the above-mentioned features, a specially constructed commutator type motor will be described as an example utilizing the armature coil according to the invention.

The electric motor of this example has good efficiency because of the overlapping winding, and the disc-shaped armature coils are arranged without overlapping.

Therefore, it has the feature that the armature can be mass-produced by plastic molding, especially injection molding, and considering the fact that the armature coil according to the present invention can be mass-produced, it can provide an extremely effective technical means. .

Further, since the armature coil according to the present invention can be constructed with a small armature diameter, it is possible to obtain a flat axial gap type electric motor and an effective means for reducing the size and weight of the main body.

In FIG. 1, a disc-shaped mild steel plate 5 is press-fitted and fixed to the lower surface of a cylindrical housing 1 made of a mild steel plate formed by press working.

Bearings 3 and 4 are fixed to the housing 1 and the disc 5,
4 supports the rotating shaft 2.

An annular ferrite magnet 6 is adhered and fixed to the disk 5.

FIG. 2 shows a magnet 6 that is to become a field magnet.

N and S poles with an opening angle of 90 degrees are arranged alternately.

Symbols 6-1, 6-2. 6-3.6-4 indicates N and S magnetic poles.

Returning to FIG. 1, an armature 7 and a commutator 8 that are integrally molded are fixed to the rotating shaft 2.

A plastic cylinder 9 is fitted into a hole inside the magnet 6, and the base of a brush 10 is fixed to the inner surface of the plastic cylinder 9.

Further, the circumferential portion of the armature 7 slightly protrudes downward, and the reason for this will be explained later.

Details of the armature according to FIG. 3 are shown.

As shown in the figure, three armature coils are embedded and molded.

Circumferential part? a (shown in the first diagram) is slightly higher.

This also serves to increase strength.

As shown in FIG. 3, the armature coils are fan-shaped and arranged without overlapping each other.

Each of the armature coils 12, 13, 14 has the same shape, and the width of the conductor portions 12a, 12b effective for torque is 90 degrees, which is the same as that in the field magnetic pole.

Armature coils can be mass-produced by winding around 200 turns of thin wire and heating and solidifying it.

Since the thickness of the armature coil is about 2 mm, the armature 7 is also about the same thickness.

Therefore, the length of the air gap where the field exists can be designed to be small, and high efficiency can be obtained.

The armature coils 12, 13 and 14 are arranged at equal pitches with an opening angle of 120 degrees.

Such an arrangement can be easily obtained by making a well-known three-pole motor into an axial gap type, but in this case, since the width of the field magnetic poles is 180 degrees, reverse torque is mixed in and the efficiency is significantly degraded. However, it loses its practicality.

Therefore, it is necessary to use a commonly used armature coil with lap winding.

Although such a measure improves efficiency, at least two armature coils overlap, which increases the thickness of the armature 7 and reduces the magnetic field. It has the disadvantage that it is difficult to mold plastic, and mass production is lost.

The electric motor of this example can completely eliminate such drawbacks.

In Figure 3, the conductor part effective for output torque is symbol 12a.
, 12b only.

Since the coil needs to be wound flat, the width of the coil inevitably increases.

Therefore, the effective length of the conductor portions 12a and 12b described above becomes small, and therefore there is a limit to increasing the torque and improving efficiency.

When the outer diameter of the armature 7 becomes smaller, that is, in the case of a small-output electric motor with a small diameter main body, the above-mentioned drawbacks are doubled.

The armature coil according to the device of the present invention eliminates the above-mentioned drawbacks and also has several other effects.

Next, the principle of rotation of the electric motor shown in FIG. 1 will be explained using the exploded view shown in FIG. 4.

In Fig. 4, symbols 6-1, 6-2,...
are field magnetic poles, and in the case of the commonly used four-pole overlapping winding, the armature coils under the magnetic field of magnetic poles 6-1, 6-2 are designated by symbols 12 and 14a.

13, in which the terminals of each coil are connected to the corresponding commutator bar according to the lap winding procedure.

The above-mentioned example is a simple example of overlapping winding, and the opening angle of the commutator pieces is 2/3 of the opening angle of the field magnetic poles 6-1, 6-2, . . . .

Therefore, the coils are always superimposed in two layers as shown in the figure.

It is clear that if the number of coils is increased, three or four layers will be superimposed.

However, even if the armature coil 14a is moved 180 degrees to the right and the position of the armature coil 14 is changed, there is no change in the direction of the output torque, so the motor should rotate as a lap-wound motor.

At this time, of course, the conventional lap-wound armature coil under the field of the magnetic poles 6-3, 6-4 is removed.

The opening angle of the conductor part involved in the torque of the armature coils 12, 13, 14 is 90 degrees, which is the same as that in the magnetic pole, and each coil has an angle of 12
They are arranged at equal pitches, separated by 0 degrees.

Therefore, the arrangement of the fan-shaped coils is as shown in FIG.

Since the winding is overlapping, the winding end terminal 22b of the armature coil 12
is connected to the winding start terminal 24a of the armature coil 14, the winding end terminal 24b of the armature coil 14 is connected to the winding start terminal 23a of the armature coil 13, and the winding end terminal 23b of the armature coil 13 is connected to the armature coil 12. Winding start terminal 2
2a.

Also, the terminals 22a and 23b are connected to the commutator pieces 8-1 and 8-4, the terminals 22b and 24a are connected to the commutator pieces 8-2 and 8-5, and the terminals 23a and 24b are connected to the commutator pieces 8-3 and 8-5. 6, respectively.

Since the above connection and coil arrangement are substantially equivalent to lap winding, the armature and commutator form a DC motor that rotates with torque generated in the directions of arrows A and B.

Also, since there is no counter-torque mixed in during rotation, high efficiency can be obtained.

Furthermore, since the armature coils 12, 13, and 14 are arranged without overlapping each other, mass production is possible as described above with reference to FIG.

Because it does not actually use silicon steel plates that serve as magnetic paths,
It has the characteristic that it can be made at a low cost.

If the known three-pole motor is configured as an axial gap type, the armature coils will be arranged as shown by symbols 12.14a and 13, and the armature coils will overlap.

If the width of each coil is reduced to avoid overlapping, the counter torque will naturally be mixed in, resulting in a significant deterioration in efficiency and loss of practicality, but this device eliminates all such drawbacks.

Further, the brushes 10 and 11 are in sliding contact with the commutator at an opening angle of 90 degrees, and are supplied with power from the DC power sources 10a and 11a.

Although the armature coil according to the present invention is effective for use in the commutator motor described above, it can also be applied to other motors of the same type, such as semiconductor motors.

The present invention can also be similarly applied when the number of field poles increases.

Next, the armature coil obtained by the apparatus of the present invention will be explained.

FIG. 5C is a perspective view of the armature coil as shown in FIG. FIG. 5d is a perspective view of the armature coil which is bent into an eave shape by breaking both of the dotted lines 42.

Note that b is a front view of the armature coil in FIG. 5d, which has a shape similar to that of FIG. 5a with the outer periphery removed from the dotted line 42.

As can be seen from the above-mentioned molded armature coil, the diameter of the armature 7 shown in FIG. It is something that you have.

FIG. 6 shows an example of how the armature coils shown in FIGS. 5 b to d were obtained by primitive means. , a fan-shaped side plate 22 is used as a guide.

A square pillar 19 is provided at the center of the winding core 17, and a threaded portion 20 is provided at an extension of the square pillar 19.

A square hole 20 is provided in the side plate 22 through which the square column 19 described above passes through and for fixing and holding the side plate 22.

If the parts shown in FIG.
, 22, so that the conducting wire does not shift to the outside.

However, the portions 17c and 17a of the winding core 17 may shift outward if the tension of the conducting wire is not appropriate.

However, by adjusting the tension of the conductor appropriately, using cement wire (self-adhesive conductor) as the conductor, applying hot air to the cement wire while winding it, and then winding it on top of the armature coil while temporarily fixing it. If you keep going, the 6th
It is wound as shown in the figure.

The part marked with symbol 26 in Figure 6 is the part where the conductor wire is wound around the outside of symbol 17c in Figure 6, and the part marked with symbol 27 is the part where the conductor wire is wound outside with the symbol 17d. It shows.

Note that the rotation of the rotating shaft 16 is controlled by the drive source of the winding machine.

Next, as shown in FIG. 6, the pre-wound wire is inserted into a winding forming jig 28 (shown in c) and molded and solidified.

In other words, the part marked 29.30 is tapered,
The armature coil 26°27 portion is indicated by the dotted lines 26a and 2 in figure b.
As shown by 7a, it is a slope for pushing in while breaking in one direction.

Note that this slope was determined experimentally, so it should be slightly rounded to avoid damaging or breaking the wire.
The surface is coated with Teflon to make it slippery.

In addition, as mentioned above, since the one shown in Figure 6 is temporarily hardened using cement wire, it easily collapses when inserted into the jig 28 without applying heat again by blowing hot air. It can be molded into a shape and solidified.

The part 28a of the jig 28 is the part 18a of the fan-shaped side plate 18.
, 22a is the part to be inserted, and symbol 28 of the jig 28
The portion b is a portion into which the fan-shaped side plates 18b and 22b are inserted.

Furthermore, since the armature coil molded and solidified by this method can be obtained in a highly accurate shape, it can provide an effective means for arranging three armature coils with high precision as shown in Figure 3. be.

The means described above shows a manufacturing apparatus for manually performing the simplest means of breaking the upper and lower ends of a fan-shaped coil into a predetermined shape. It cannot be automated and continuously formed and cannot be mass-produced at low cost.

The present invention has been made based on the above-mentioned circumstances.The present invention has a structure in which the above-mentioned useful armature coils can be automatically and continuously formed and can be mass-produced at low cost by using a manufacturing device having a simple configuration and which can be formed in a small size and at low cost. It was done for the purpose of obtaining something.

The present invention will be described in detail below with reference to FIG. 7 and subsequent drawings.

The manufacturing equipment and manufacturing method shown in Figures 7 to 11 are a method of consistently producing armature coils by winding them into a fan frame shape and then breaking and bending them at predetermined locations using a completely automatic machine. This is a first embodiment of the present invention illustrated.

Here, the same symbols as in the previous embodiment indicate the same members.

The rotating members 31 and 32 rotate synchronously around a dotted line 35.

The drive shaft for this rotation is driven by an electric motor attached to the arrow 36 side of the rotating member 32, and the rotation of the rotating member 32 is caused by the rotation of the rotating member 31 via the prismatic member 37.
The rotating member 31 is rotated in order to transmit the signal to the user.

The details of the prismatic member 37 are as shown in FIG.
Since the distal end portion 38 has a square pyramid shape, it can be easily inserted into a square hole (not shown) provided in the rotating member 31.

Further, the winding core 39 has a fan-shaped plate shape and is attached so as to protrude from the surface of the semi-cylindrical member 40 of the rotating member 32, and as will be described later, the winding core 39 is attached to the surface of the rotating member 31 and the semi-cylindrical member 40 facing each other. Since the winding core 39 is held between the surfaces and does not need to be removed, it is constructed integrally with the semi-cylindrical member 40.

The pin 41 is used to press and hold the winding start terminal of the conducting wire against the inner surface of the receiving hole 42.

To explain in detail the working procedure of the automatic machine at this time, bobbin 4
The conductive wire wound around 5A is held by a clip 46 via a tension adjuster 45.

In this state, the tip of the clip 46 is inserted through the square hole 42.

Therefore, a portion of the conductive wire 47 exists in the square hole 42, and in this state, the pin 41 is
is pressed in the direction of arrow 48 through an elongated hole provided in member 32.

For this reason, the conductive wire 47 portion is pressed and held by the side surface of the square hole 42 and the pin 41.

In the next step, the clip 46 is opened and the leading end of the conductive wire is removed.

In the next step, the rotating member 32 is pressed in the direction of arrow 49 via an air cylinder (not shown), and the left end of the winding core 39 is brought into pressure contact with the rotating member 31 and stopped.

Thereafter, the rotating members 31 and 32 rotate synchronously as described above.

FIG. 8 is an enlarged view of the state at this time, and shows a sectional view when the rotating members 31, 32 have rotated two to three times.

Components with the same symbols as those in FIG. 7 are the same members, so explanations thereof will be omitted.

The conducting wire 47 is wound around the outer periphery of the winding core 39, and as a guide for this purpose, the tip portions of the rotating members 31 and 32 have rounded slopes as shown in the symbol 51 shown in FIG. ing.

Also, regarding the actuator 34, which is a molded member of the armature coil, all portions 52 to 54 in FIG. ing.

Furthermore, when winding the armature coil, G serves as a guide to prevent it from collapsing together with the actuator 34, which will be described later.
) Needless to say, the conducting wire is wound around the holes 55° and 56.

A guide member 57 in FIG. 8 is fixed to the tip of a stepped cylindrical actuator 58, and its left side surface is pressed in the direction of arrow 60 by a spring 59.

However, since the part 61 of the actuator 58 is pressed against the oilless metal 62, it remains in the state shown in FIG. 8.

Further, the oil-less metal 62 is fitted onto the rotating member 31.

A few seconds after the start of winding, a predetermined amount of conductive wire is wound around the outer periphery of the winding core 39, and the next step begins.

That is, this is the process of making the armature coil shown in FIG. 5C, which is the object of the present invention.

For this purpose, as mentioned above, it is necessary to break and bend from the part indicated by the dotted line A in FIG.

To do this, first move the guide member 57, which serves as a side plate, to the ninth
As shown in the figure, the pin 33 is pushed in the direction of the arrow 63 using an air cylinder or the like to evacuate it from the armature coil.

After this, the actuator 34, which also serves as a side plate and is a member for breaking the armature coil to the left, is also moved in the direction of arrow 63 at an appropriate speed using an air cylinder.

Note that the symbol 34a is fixed to the actuator 34 and reciprocated in the direction of the guide member 57 by the aforementioned air cylinder.

The actuator 34 (first
0) is a rounded slope.

For this reason, the part of the armature coil indicated by symbol 120 (FIG. 5) collapses, bends, and is formed into an eave shape as shown in FIG. 5C.

In this case, in order to avoid damaging the armature coil or breaking the wire, the slope 64 should be formed at an angle determined experimentally and treated with Teflon or the like to make it slippery.

The thickness corresponding to the bending allowance part due to the slope of symbol 64 may be about 1 to 2 mm, and experimentally it has been found that
It is known that the thickness may be approximately the same as that of 2b (shown in the third figure), but the thickness is not limited to this.

Note that after the armature coil is broken and bent into an eaves shape in this manner, hot air is blown from the nozzle 65-1 (shown in the seventh figure).

Since the conducting wires 47 are made of cement wire, they are welded together and solidified by this hot air.

In this case, the dimensional accuracy of the armature coil may be better if the actuator 34 is left in the state shown in FIG. 9 and the armature coil is welded and solidified.

Furthermore, in order to weld and harden the armature coil, there is also a method that is not limited to hot air, but also impregnation with alcohol or the like.

In this case, the purpose can be achieved by molding it into the same shape as described above, then putting it together with a jig in an alcohol container, and then taking it out and drying it with hot air to solidify it.

The next step is to remove the solidified armature coil.

First, the rotating members 31, 32 are returned and separated via air cylinders, respectively, as shown in FIG.
5°66 in the direction of arrow 67A (shown in the seventh figure) using an air cylinder or the like.

Therefore, the solidified armature coil separates from the rotating member 32 and the winding core 39 and falls downward.

Of the pins 65 and 66 for extrusion described above, pin 65 is shown in FIG. 7, and pin 65 and 66 are shown in FIG. 10 with the same symbol.

Further, the pins 65 and 66 are configured to automatically reciprocate by means of an air cylinder.

By completing each of the above steps, the armature coil shown in Figure 5C is mass-produced.
As shown in Fig. 1, each process is divided into parts by using a turntable 67 that rotates in steps of 90 degrees clockwise and providing the rotating members 31, 32 and other members in the dotted line portions 68 to 71, respectively. can be done.

Note that the symbol 67a is a drum around which the conducting wire 47 is wound.

For example, in the part indicated by the dotted line 70, the starting end of the conductor is connected to the winding core 3.
9, the dotted line 69 is the process of winding the conductor around the winding core, the dotted line 68 is the process of forming and solidifying, and the dotted line 71 is the process of separating the armature coil from the winding core. Not only can it significantly shorten the production time, but it also has the effect of making quality uniform since it is manufactured using the same machine.

Next, another embodiment different from the above-described winding device will be described with reference to FIGS. 12 and 13.

As an example, an apparatus for obtaining the armature coil shown in FIG. 5C will be described, but the armature coil shown in FIG. 5D can also be obtained by using substantially the same apparatus.

That is, the conductor portion 12a is effective for the torque of the armature coil.

It is also possible to form a shape in which both sides of 12b are bent.

FIG. 12 is an exploded perspective view of another embodiment of the device of the present invention, in which the rotating shaft 72 is driven or stopped by a drive source (not shown), such as an electric motor.

The screw 81 is screwed onto the rotating shaft 72 and becomes a fixing pin.

The extension 72a of the rotating shaft 72 has a square cross section, and the extension has a thread 72b.

Holes 77 provided in the side plate 73 and winding core 74 for guiding, and holes 7B provided in the side plate 75 are fitted onto the rotating shaft 72a in close contact, so that the hexagonal nut 79 is screwed into the hole 77. It is composed of

Note that the guide member 76 serves as a guide wall for the windings together with the side plate 75, and is attached to the outer circumferential surface 75a of the side plate 75 so as to be slidable in the directions of arrows 83 and 84 by a means described later.

FIG. 12 shows the guide member 76 seen from the other direction, the details of which will be explained next.

The curved bottom surface of the guide member 76 corresponds to the outer circumferential surface 7 of the protrusion 73b.
3a, the curvature is approximately the same as the outer periphery 74a of the winding core 74.

Further, the portions 76a to 76d have curved surfaces as shown, and the portion 76e has a flat surface parallel to the side plate 73.

The curved surfaces indicated by symbols 76a to 76d are experimentally determined to be predetermined curved surfaces, but the purpose of forming these curved surfaces is to ensure that the coil-wound armature coil is
This is to ensure smooth winding of the coil so that it has the shape shown in the figure.

It goes without saying that a soft material that does not damage the conductor is better.

A side view of the winding frame of the armature coil configured as described above is shown in FIG.

In Fig. 13a, the side plates 73, 75 are made of approximately semicircular metal plates, etc., and the winding core 74 has the same thickness as the armature coil, about 1 mm, around which cement wire is wound. It is.

Since the armature coil is flat, side plates 73 and 75 are pressed against both sides of the winding core 74 to prevent the wound wire from collapsing to both sides.

The side plate 73 is provided with a protruding step portion 73b (illustrated in the twelfth figure), and its outer circumferential surface 73a is at the same height as the outer circumferential surface 74a of the winding core 74 (illustrated in the twelfth figure).

A portion indicated by a dotted line 80 is a curved surface, which bulges higher from the top toward the bottom, and a portion indicated by a symbol 80a (shown in the twelfth figure) is at the same height as the protruding step portion 73b.

The curved surface of the above-mentioned bulge has been determined to be a predetermined curved surface through experiments, and the purpose of forming this curved surface is to make the coil-wound armature coil into the shape shown in Fig. 5C, as will be described later. This is to ensure smooth coil winding.

Next, the winding means will be explained with reference to FIGS. 12 and 13.

What is indicated by the symbol 86 in FIG. 13a is a drive source including an electric motor for driving the rotary shaft 72, and a commonly used means is employed.

Symbol 88 is a device for blowing out hot air from a nozzle 88a, and the cement wire 8 is wound around the winding core 74 in the direction of the arrow.
9, the wound cement wire is thermally bonded and the coil is solidified and molded.

Winding is done in the following order:

That is, first, one end 90 of the cement wire is wound around the fixing pin 81 as shown.

Next, since the rotating shaft 72 is rotated by the drive source 86, the cement wires 89 are wound around the outer periphery of the winding core 74 while being bonded to each other.

Since the side plates 73 and 75 are pressed against both sides of the winding core 74, the space outside the portions 74b, 74c, and 74d of the winding core 74 shown in FIG. 12 has the same thickness as the winding core 74.

Therefore, the conductor parts 12a and 12b are effective for the torque shown in the third diagram.
The thickness is the thickness of the winding core 74.

A portion 74d of the winding core 74 has a wide space.

The side plates 73, 75 and the winding core 74 rotate, and the cement wire 8
9 is wound around the winding core 74, the guide member 76 moves in the direction of the arrow 8.
The conducting wire moves in three directions and is therefore wound sequentially to the left.

Therefore, after passing through the state shown in Fig. 113 and Fig. 13C, the fifth
The armature coil shown in Figure C is completed.

The guide member 76 is moved in the direction of the arrow 83 by conventional means using a cam rotating synchronously with the rotating shaft 72 as indicated by the symbol 87, and moves along with the side plate 73 to the protruding step 7 of the side plate 73.
3b and a portion 74d of the winding core 74 constitute a guide wall, ie, a side plate, for the cement wire 89.

Therefore, the difference from the apparatus described in FIGS. 6 to 10 is that an armature coil having the shape shown in FIG. 5C can be formed while winding, which simplifies the process and is a very effective means.

The side plates 73, 75 and the winding core 74 are indicated by the arrow 82 (as shown in the 12th figure).
When the cement wire 89 is rotated in the direction shown in FIG. It will enter the space, and the side plate 73.75
It gets caught in the wire, making it impossible to wind the wire.

In order to prevent this drawback, bulges 80, 85 are provided.

The bulging portions 80° 85 serve as guide walls for the cement wire 89, so that the cement wire 89 is smoothly introduced into the space of the portion 74d of the winding core 74.

Therefore, the shape of the bulges 80, 85 must be determined through experiments.

FIG. 12 76b, 76c of the guide member 76 already mentioned above,
Similarly, the cement wire 89 is smoothly introduced into the space between 74d and 74d of the winding core 74 in the sections 76d and 76c. The shape is such that it can be smoothly introduced into the slit formed by the side plate 73 and the guide member 76 on the outer peripheral surface 73a.

After the required number of turns have been wound by the above means,
Cut the cement wire 89 with a cutter, loosen and remove the hexagonal nut 79, and separate the side plates 73, 75 and the core 74 (even if the core 74 is integrated with the side plate 73 as shown in Figure 12a) Then, an armature coil having the shape shown in FIG. 5C can be obtained.

Note that a description of the automatic winding machine, which is very effective in mass production, will be omitted since it can be obtained by substantially the same means as described with reference to FIGS. 7 to 11.

The method for manufacturing armature coils described above was to rotate the core of the armature winding and keep the conducting wire fixed. Even if you rotate , the result is relatively the same.

Therefore, one embodiment thereof will be described below. Figure 14 shows the 7th
In the illustrated mechanism, this is an embodiment of the apparatus using a flyer 95 that rotates the conductor and winds the conductor around the winding core 39 instead of rotating the rotating bodies 31 and 32.

The same symbols as in FIG. 7 indicate the same members.

The clip 96 connects the conductor from the flyer 95 to the square hole 42 (
7); its function is as described above with reference to FIG.

After the conducting wire is held in the square hole 42, the flyer 95 rotates at high speed in the direction of arrow 97, and the conducting wire is wound around the winding core 39.

The steps after the conductive wire is wound around the winding core until a predetermined number of wires are wound are the same as the means explained in FIGS. 9 to 11, and will therefore be omitted.

In the first embodiment of the present invention described above, the conductive wire is pre-wound around the outer periphery of the winding core in a fan frame shape, and the armature coil thus wound in the fan frame shape is not taken out and transferred to another location. Rotating member 31.3 can be rationally mounted in limited manufacturing equipment space.
The guide member 57, the pin 33, and the actuator 34 provided in the coil 2 are driven to form a fan frame-shaped armature coil in which the circumferential conductor part that does not contribute to the generated torque is bent in the right angle direction in the shape of an eave. There is.

Here, the conductor wire is passed through the gap formed between the rotating members 31 and 32, and the conductor wire is wound around the outer periphery of the winding core 39, and this winding operation can be performed smoothly. The guide member 57 and actuator 34, which are provided so as not to obstruct the above-mentioned gap and have a conductor guide function, are respectively connected to the rotating member 3.
1.32 (note that the pin 33 is also provided on the rotating member 32 so as not to obstruct the above-mentioned gap). After winding a predetermined amount of the conductive wire around the winding core 39, the pin 33 is used to connect the guide member 57.
The actuator 34 is moved backward in the direction opposite to the actuator 34, so that the conductor part that does not contribute to the torque generated by the armature coil is easily broken in the perpendicular direction by a light force on the rotating member 31, and then the actuator 3
4 in the direction of the guide member 57, it is possible to easily form an armature coil having a shape in which a conductor portion that does not contribute to the torque generated by the armature coil is bent at right angles in the shape of an eave.

Since the manufacturing apparatus has such a structure, it is possible to obtain a manufacturing apparatus that is extremely simple in construction, small in size, and inexpensive.

Further, by using such a manufacturing apparatus, the above-mentioned useful armature coils can be continuously automated and mass-produced rapidly and inexpensively.

Furthermore, since the manufacturing apparatus of the second embodiment is almost the same as that of the first embodiment, it has the same effect as the first embodiment, but the armature coil of the second embodiment is wound and formed. However, when a predetermined amount of conductor wire is wound around the winding core, a useful fan frame-shaped armature is created in which the circumferential conductor part that does not contribute to the final resultant torque is bent at right angles to form an eave. Coils are automatically obtained.

Therefore, the first embodiment is manufactured as a winding machine in order to eliminate the need for strong force, compared to the process of winding it into a fan frame shape and then bending it to a predetermined thickness. This has the advantage that the device can be constructed easily, the shape of the entire armature coil is not damaged, and the conductor wires are not damaged.

As described above, according to the armature coil obtained by the armature coil manufacturing apparatus for use in the axial gap type electric motor of the present invention, which is the armature winding device according to the present invention, as described at the beginning, the armature coil It not only significantly strengthens the mechanical strength of the main body, but also allows the output torque to be increased even if the diameter of the main body is reduced.

Furthermore, since the diameter of the armature can be made relatively small, it is easy to maintain dynamic balance.

Additionally, depending on the method of manufacturing the armature winding, the overall length of the conductor wire can be shortened, making it possible to manufacture an armature with numerous features such as reduced copper loss and improved efficiency. .

In addition, there is an effect that armature coils having such effects can be mass-produced at low cost using a manufacturing apparatus that can automatically successively produce armature coils having a simple configuration, small size, and low cost.

[Brief explanation of the drawing]

FIG. 1 is a sectional view of an axial air gap type motor using an armature coil according to the present invention, FIG. 2 is a top view of the magnet shown in FIG. 1, and FIG. 3 is a front view of the armature shown in FIG. 4 is a developed view of the windings of the DC motor shown in FIG. 1, FIG. 5 a is a front view of the armature coil, FIG. 5 is a front view of the armature coil according to the present invention, and FIG. 5 c , d are perspective views of the armature coil according to the present invention, FIGS. 6a and 6c are perspective views of the conducting wire jig of the armature coil of the first embodiment, and FIG. A side view of the armature coil being wound around the child coil winding jig; FIGS. 7 to 9 are side views of the first embodiment;
The figure is a perspective view of the first embodiment, and FIG. 11 is a perspective view of the first embodiment.
FIG. 12 is a perspective view of the second embodiment, and FIG.
The figure is a side view of the first embodiment, and FIG. 14 is an explanatory diagram of another embodiment. 1... Housing, 2... Rotating shaft, 3, 4...
... Bearing, 5 ... Disc, 6 ...
Magnet, 7... Armature, 8... Commutator, 9... Plastic cylinder, 7a...
...Outer peripheral part, 10...Brush, 12, 13, 14
...Armature coil, 8-1 to 8-1...
・Commutator piece, 10a, 11a...Power supply, 17・
...Sector-shaped winding core, 18...Sector-shaped side plate, 19
・・・・・・Square prism, 20,106°108・・・・・・
・Screw, 21... Square hole, 28... Molding jig, 31, 32... Rotating member, 39...
... Armature winding core, 40 ... Semi-cylindrical member, 45.
...Tension adjuster, 46.96...Clip, 42...Square hole, 47...Conductor, 5
5, 56... Hole, 57... Guide member, 62... Oil-less metal, 72...
・Rotating shaft, 74... Winding core, 73, 75...
...Side plate, 76...Guide member, 79...
・Hexagonal nut, 80, 85...bulge, 89・
...Cement wire, 65...Nozzle,
90... One end of cement wire, 95...
...Flyer.

Claims (1)

[Claims] 1. A first member 31, a second member 32, and a fan-shaped plate provided on either one of the opposing surfaces of the first and second members 31 and 32 and protruding from the opposing surface. a winding core 39 having a shape, and means for moving a second member 32 to the first member 31 and sandwiching the winding core 39 between opposing surfaces of the first member 31 and the second member 32; It is supported by the first member 31 on the opposing surface of the first member 31 and facing the circumferential portion of the winding core 39 or a portion symmetrical thereto, so as to be retractable in the opposite direction to the second member 32. A first side plate 57 provided on the first member 31 for guiding and guiding the conducting wire 47 to the outer periphery of the winding core 39; and a first side plate 57 for guiding and guiding the conducting wire 47 to the outer periphery of the winding core 39. a second side plate 34 that faces the second side plate 34 and is provided on the second member 32 so as to be able to move forward in the direction of the first side plate 57;
A pin 33 is provided on a surface of the second member 32 facing the first side plate 31 and is supported so as to be able to advance in the direction of the first side plate 31 so that the first side plate 31 can be moved backward. , a lead-out guide member for the conducting wire 47 for winding the conducting wire 47 around the outer periphery of the winding core 39; an automatic mechanism 41 for fixing the free end of the conducting wire 47 to a part of the first or second member 31° 32; 42. ...and the drive shaft rotated by the drive source that rotates the winding core 39 or the guide member, and the rotation of the member for winding the winding when a predetermined winding is completed. an automatic mechanism that cuts the end of the winding of the coil; and an automatic mechanism that cuts the end of the winding of the coil; and when a predetermined winding is completed, the pin 33 is driven to retreat the first side plate 57 and the second side plate 34 is moved back to the first side plate. An automatic mechanism that moves the coil forward in the 57 direction to break the circumferential part of the coil or the part facing it into an eave shape and flattens it, the device that solidifies the coil, and the second member 32 that returns to its original position. together with the ejector pin 65,
66. An apparatus for manufacturing an armature coil used in an axial gap type electric motor, characterized by comprising an automatic mechanism for separating the coil from a winding core 39 by means of a mechanism 66. 2. Claim 1, characterized in that the drive shaft is formed by winding a conducting wire 47 around the outer periphery of a winding core 39 by rotating the first member 31 and the second member 32 synchronously. An apparatus for manufacturing an armature coil used in the axial gap type electric motor described above. 3. Used in the axial gap type electric motor according to claim 1, characterized in that the drive shaft is a shaft that rotationally drives a flyer 95 that guides the lead-out of the conducting wire for winding the conducting wire around the winding core. Armature coil manufacturing equipment. 4 a first member 73, a second member 75, a fan-shaped plate-shaped winding core 74 provided on a surface of the first member 73 opposite to the second member 75 and protruding; Means for sandwiching the winding core 74 between the opposing surface of the member 73 and the opposing surface of the second member 75,
4c) and a side plate 76 provided on the second member 75 so as to be able to advance toward the first member 73 side facing the second member 75, and a conductor 89 wound around the outer periphery of the winding core 74. The circumferential portion of the winding core 74 ( 74a or 7
4c); an automatic mechanism 87 for flattening the conducting wire 89 portion facing 4c; an automatic mechanism for cutting the end of the coil; a device for solidifying the coil; and a first or second member (73 or 75).
) and an automatic mechanism for separating the coil from the winding core 74 using an ejector pin. 5 The lead-out guide member for the conducting wire 89 for winding the conducting wire 89 around the outer periphery of the winding core 74 is a device in which the rotation of the first member 73 is controlled by a drive shaft, and the rotation speed of the first member 73 is controlled by a drive shaft. An armature coil used in an axial gap type electric motor according to claim 4, characterized in that the armature coil is comprised of an automatic mechanism that moves the side plate 76 toward the first member 73 in response to the movement of the side plate 76 toward the first member 73. manufacturing equipment. 6 a flyer 95 for winding the conducting wire 89 around the winding core 74, the side plate 76, and an automatic mechanism that gradually moves the side plate 76 toward the first member 73 in accordance with the rotational speed of the flyer 95; An armature coil used in an axial gap type electric motor according to claim 4, characterized in that the armature coil is constituted by an automatic mechanism that stops the rotation of the flyer 95 when a predetermined winding is completed. manufacturing equipment.