JPS58179153A - Coil for motor and manufacture thereof - Google Patents

Abstract

PURPOSE:To adapt to assemble in a hollow body in a movable unit by winding a coil in a circular-arc shape around a rotor and specifying the surface by the winding of a conductor. CONSTITUTION:A coreless motor is formed substantially in a spherical shape at the outer profile, a hollow spherical coil 6 wound in a spheral bobbin shell 5 is contained in a pair of semispherical cup-shaped yoke shells 2, 4 which are specified in the profile, and a spherical permanent magnet 8 is further contained in the hollow body in a spherical coil 6. A rotational shaft 16 is inserted into the through hole 10 of the magnet 8 and a supporting member 14. A hub 22 is provided in the shell 2, and a commutator 24 which is contacted with a pair of brushes 26 is provided on the hub 22.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a wire for an electric motor and a method for manufacturing the same, and more particularly to a wire for an electric motor having a spherical or inertia circular surface and a method for manufacturing the same.

In general, cylindrical, cup-shaped, bell-shaped, and disk-shaped wire rings for electric motors are known, and these are known as wire rings for electric motors. It is known that a 4-piece motor has an outer shape corresponding to a built-in electric 4-litter. Kinki Denki I! It is often used for O purposes and is incorporated into various equipment, but it has a structure compatible with Hiromi MkK.
was there. In particular, the electric motor that should be incorporated into the moving parts of the II device, namely the pot and the medical *SO arm! The current situation is 0, which has not yet been proposed to be incorporated into lI*m. An electric motor with a general cylindrical external shape is incorporated into the pigeon coop, which is controlled by sP+/%, and a cylindrical electric winding tube is placed inside the spherical body, and a structure is adopted that allows the arm svt to move. . In structures such as C and O, the am part is thick (despite 1 and 4, the size of the electric motor that can be housed in it is limited, and it is not possible to obtain the necessary 1 nerc). Lemoah.

This invention accomplishes the above-mentioned 1'WKI! The object of the present invention is to provide an electric motor suitable for incorporating into a moving part and a method for manufacturing the same.

The electric motor III of this invention with reference to the figure thi11t below.
I will explain about the service ring.

FIG. 1 is a partially cutaway sectional view of a 2vkO coreless motor according to an embodiment of the present invention, and the coreless motor has a substantially spherical outer shape and defines a thousand outer shapes. A pair of hemispherical cup-shaped yoke shells 2
．． The 4th circle houses the 9th spherical coil 6 formed by winding it around the spherical bobbin shell 5.
A spherical permanent magnet 8 is further housed in the barrel. A through hole 10 is bored in this permanent magnet 8, and this through hole 10
The cylindrical portion 14-1 of the permanent magnet support member 14 is inserted therein, and the seven flange portions 14-2 of the support member 14 are fixed to the lower part of the lower bobbin shell 4, so that the permanent magnet 14 is connected to the support member 14 valve. It is supported and fixed to the lower part of the shell 4. A rotating shaft 16 is inserted into the permanent magnet 80 through hole 10 and the supporting member 14, and the rotating shaft 16 is inserted into the upper part of the permanent magnet 8, the upper bearing 18, and the supporting member 1.
It is rotatably supported by a lower bearing 2Q provided in the cylinder 11 of No. 4. As shown in the figure, the left hemisphere and right hemisphere of the permanent magnet 8 are N and 8, respectively, and the joint between the pair of hemispherical blades/shells 2.4 is the 8th pole from the ON pole of the permanent magnet 8. The permanent magnet 8 is provided substantially along the equator direction of the permanent magnet 8, corresponding to the direction of the lines of magnetic force. A hub 2j fixed to the rotating shaft 16 is provided inside the upper shell 2,
On this O hub, a member 1 is fixed to the upper am-ri shell 2.
A commutator ``24'' is provided, to which a pair of brushes 26 are in contact.This hub 22 is identified with the bobbin shell 5, and the spherical wire ring 6Vr configuration pin guide S on the bobbin Φ shell s is connected to the commutator ``24''. It is connected to the child 24 with the -〇 wiring.

As shown in the figure, there is a substantially uniform air gap g! between the permanent magnet 8 and the bobbin shell 5, and between the spherical wire ring 6 and the outer shell 2, respectively. The spherical ring 6 is connected to the brush 26 by supplying power through an external terminal (not shown).
is rotated together with the rotating shaft 16, and the rotational torque is extracted from the rotating shaft 16.

The above-mentioned spherical wire ring 6 is formed by winding an isO large circle as follows. As shown in FIG. 2, a bobbin shell 5 is prepared in which a permanent magnet 8 is housed and is attached to a hub 22 having a rotation axis of 1φ. In the large circle winding, the shoulder around the hub 22 of the pobin shell 5 WIA5-
Shoulder 5- around the open end 28 of the 1&U bobbin shell 5
In 2, the winding conductor wire SO crosses and is laminated, and it is lighted on the other bobbin shell 5, 113) # without crossing, for example, in a single layer structure, closely aligned 41 times / shoulder part 5 -k) As above, the Y1 shoulder portion 5-ζ7 turns are routed again on the surface of the bobbin shell 5 on the vehicle surface in the figure. Car IK difference is 9. a.

At this time, the circle drawn by the four edges 30 becomes a great circle with an at position, which is essentially the same as the pole of the bobbin shell 5. Routing guide @
30 is crossed by lll5J-# to I!
The large circle 32-1 of l is securely held on the bobbin shell 5. The routing leads @30 crossed at the shoulder 5-1' are pulled along the right side of the colored soil of the first large circle 5x-x@H2 winding part, that is, at the right IIIK- position. Turned around, Y part shoulder m
5-y', and the 10th great circle 32 when viewed from the back side of the figure.
It is pulled once along the right side of the SIw portion that composes the
1Ii2 intersects the winding part and the winding start end
A great circle 52-2 of yP/ is formed. I! one after another using the same winding method! ! By forming the third and fourth great circles 30-3 and 30-4, the bobbin shell 5 is covered with the conducting wire 30, and the entire fist area on the bobbin shell 5 is covered with the conducting wire 30.
The winding is completed by being contacted by 0. In the winding@passage machine, in the above-mentioned Kusou example, the winding @30
The winding am is increased in the clockwise direction, with increasing winding area at the intersection of **SO, ! lI part 3-1,!
On I-2, move to the right (2) Tamaoka, and go to the stile, shoulder 5.
lSs-i, 5-st.

It will be evenly distributed around the area. In the nine-turn arrangement example shown in FIG. 2, for convenience of explanation, the first, second, third and fourth large circles 31-1, 32-2, 32-3 and
:1-4f The conducting wire portions are drawn separated from each other, but in actual winding, the conducting wire portions are in close contact with each other.

＠Gevinkai Shieru 5I by Kimakimai! When contacted by the surface conducting wire 30, the self-fusion groove @SO is heated and formed integrally, and maintains a substantially spherical shape. The structure in which the conductor wires are arranged on the bobbin shell is not limited to one layer, but may also be winter clothing, and the structure in which the conductor wires are arranged on the bobbin shell is
The layer structure is defined by

The above-mentioned spherical wire wheel 6 has the following advantages compared to conventional wire wheels. Conventional electric I with a cylindrical external shape! is equipped with a cylindrical 0III wheel, and the electric motor is approximately (d+
When the motor coil is housed in a substantially spherical cavity having a diameter of IPV α), the motor coil has a maximum height of d/J and a maximum height of d/- that can be housed within a sphere of diameter d. , /2 becomes a cylindrical shape.

Here, α is 1.57d'' in the shell-yoke and gear force of the motor.On the other hand, in the case of a spherical coil, the product in Table 1 [] is πdl.

Of both! As is clear from the comparison of l1fi products, the spherical coil has a twice larger surface area, and as a result, the torque that can be extracted from the electric motor housed in the same volume is greater than that of the spherical electric motor. can be made larger. worn,
For spherical coils, spherical bobbins! ! Since the conductor wire is wound with a certain tension on the surface, the conductor wire is tightly wound on the bobbin surface with a high precision of W77t, and the encroachment is maintained even after winding, thereby preventing mold mesh. In addition, the spherical ring has a higher tolerance for wobbling than a cylindrical wire ring, that is, 1
It has a high tolerance to the heart, and has a high structural dynamic and static resistance, and is resistant to the shape of the sword and thermal deformation.

Furthermore, in the case of one large circle e*, it is possible to roll the wire with a constant O tension during winding, and the winding balls applied to the bobbin shell are also constant, making it possible to manufacture a wire ring with sufficient durability. .

Next, other embodiments of the present invention will be described with reference to FIGS. 3, 4, and IK5.

The electric motor m shown in FIG. 3 is a hemispherical coreless motor, and the same parts in the figure as shown in FIG. 1 have the same reference numerals. and its explanation [omitted. However, since the coreless motor shown in FIG. 3 has a hemispherical shape while the Ares motor shown in FIG. 1 has a spherical shape, the coreless motor shown in FIG. The outer shape of the permanent magnet 8 is also formed into a hemispherical shape, and a cover member 34 is provided at the opening of the opening of the shell 2. ! A permanent magnet 8 is mounted and fixed on this cover member 34.

The above-described h4-spherical wire ring 6 is formed by semicircular winding or small circular winding. Regarding the semicircle**, the hemispherical bobbin shell 20 has a number of bins 3 around the opening periphery.
6 is erected approximately at an angle I with respect to the surface of the bobby y/shell 1v.

111@ starts from the shoulder 5-1 119, and the conductor SO is brought out from the shoulder 5-1 onto the hemispherical bobbin shell 2 and pulled to the bin 36 located approximately at the bottom of the winding start end. Can be hung. The conductor @ 30 hooked to the bottle 36 is placed under the bottle 36 [
The bobbin e-shell 10 is passed through the opening periphery of the bobbin e-shell 10 and is routed approximately half a circumference, and is hooked onto the bottle 30 at approximately the circumferential position and is extended over the hemispherical bobbin shell 2 [extended over the shoulder portion 5-1]. A semicircle 38-1 of ¥9 and @1 is formed. Shoulder WA5-
1, the winding start end is crossed on the hemispherical bobbin shell 2, and the lead H30 is hooked onto an adjacent bottle different from the one on which the lead H30 has been hooked, and is again run along the opening periphery of the bobbin shell 2. It was dragged around half a circle, and it was already closed at 3.
0 is hooked to a different bottle from the one on which it is hooked, and is extended over the hemispherical bobbin number shell 2, and the shoulder 5
A p1 second semicircle 38-2 is formed on -1. 1st
And the semicircles 3B-1, 38-2 of the hemispherical bobbin shell 2 are formed along the periphery of the hemispherical bobbin shell 2, and the bobbin shell is formed by repeating a number of semicircles or the above-mentioned nine winding method. The surface of the hemispherical bobbin shell 2 is covered by the conductor 30 by being formed thereon. After that, Bin 36
The wire ring 2 is formed by being pulled out.

According to the above-mentioned semicircular winding, the wire ring 6 for two poles is formed, but in this semicircular winding, the conductor @ 30 is layered on the periphery of the opening of the bobbin shell 2. , the outer diameter becomes relatively large, and the conductor 30 in this part not only becomes an ineffective part that does not contribute to torque generation, but also becomes a factor in increasing the resistance tP of the wire ring 6. Therefore, it can be said that it is preferable that the wire ring 6 is shaped by the following small circular winding. In the case of small circle winding, the bottle 36 is installed upright in the bobbin hole 7L 2 as in the case of semicircle winding. The conducting wire 30 is placed over the bobbin shell 2 while drawing a suitable circular arc tm* from the shoulder 5-1, is hooked onto the bottle 36, and is again hooked onto the bottle 36 while drawing a suitable circular arc [11
-Extended, small circle 40-1$ with total 9% vote 1 on shoulder 5-1
It is formed. ) It intersects with the winding start end on flflA5-1 and is placed on the bobbin shell 2 again, and is hooked on the bottle 36 that is partially hooked on the already hooked bottle, and reaches the nose shoulder portion 5-1! A small circle 40-2 of 911!2 is formed.

A third small circle 40-3 is formed by intersecting the IFIIO small circle 40-1 and the winding start end again on the shoulder portion 5-1 and extending over the bobbin shell 2. By similar winding, small circles 40-1, 40-2 and 40-3 are formed on the bobbin shell 2.
The wire ring 6 is formed by pulling out the bottle 36.

The shape of the wire ring 6 formed by the small circular winding K or 4 wao J O
kg 21 by drawing it to the range of 0°! It is possible to form a wire ring for use.

In addition, in Figures 4 and 5, the semicircles and small circles are drawn spaced apart from each other for the convenience of explanation, but in actual winding, they should be drawn in close contact with each other. be done. In addition, when winding a small circle, it may be difficult to wind the bobbin shell 2 in an appropriate small circle due to the tension of the conductor @30. Alternatively, a desired small circle may be drawn by erecting a large number of bottles on the bobbin shell 2 and arranging conductive wires through the bottles.

Furthermore, in semicircular winding and small circular winding, the bobbin shell 2 is not necessary and the string loop 6 may be formed using a semicircular winding. When the wire ring 6 is formed using such a jig, it is preferable that a shell corresponding to the butterfly and shoulder portion 5-1 be fixed to the hub 22. 17'j. In the above-mentioned embodiments, an example of a hemispherical or spherical wire ring is described, but a spheroid or a half-sphere obtained by cutting a spheroid along the major axis or the minor axis may also be used. The wire ring may be formed in the shape of a spheroid. Further, the shoulder portions 5-1, 5-2 may be formed flat with a part of the spherical surface to facilitate the tensioning of the conducting wire.

Additionally, although the above-described embodiments have been described with reference to a coreless motor, it is clear that the present invention is applicable not only to coreless motors but also to plasticless motors.

As described above, the present invention provides a wire for a motor that is most suitable for being incorporated into the cavity of the movable Wi 6, and a method for manufacturing the same.

[Brief explanation of the drawing]

Fig. 1 is a partially cutaway sectional view showing an electric motor according to an embodiment of the present invention, Figs. 4 and 5 are a partial sectional view of a motor assembly according to another embodiment of the present invention, and FIGS. 4 and 5 respectively show the manufacturing process of the motor wire ring shown in FIG. FIG. 2.4... Yoke shell, 5... Bobbin shell, 6... Wire ring, 8... Permanent magnet, 10... Through hole, 14... Support member, 16... Rotating axis, 18.20
...Bearing, 22...Hub, 24...Commutator, 26...Brush.

Claims (1)

[Claims] (1) A surface that forms part of the surface of a rotating body, and the central axis of the rotating body is O! ! A ring for an electric motor, characterized in that a conductive wire is wound in an arc shape around a wheel having a reference point passing over the surface, and the surface is defined by the winding of the conductor. (Since it has a part of the surface of the 2-rotating body, the conductor Il is wound in a circle at around the base turn through which the central axis of I11100 on the member passes, and arc-shaped conductors are densely arranged on the surface of the member. A method for manufacturing electric wire wheels for electric II, characterized in item 1.