JPS5996841A - Cylindrical wound body with bottomed cup - Google Patents

Abstract

PURPOSE:To obtain a balanced cylindrical wound body with a bottomed cup by symmetrically forming at both sides strand zones at the rotational shaft as a boundary. CONSTITUTION:A cylindrical bobbin 5 is mounted on the outer cylinder 3 of a cylindrical jig 1, and a rotational shaft 3 and a commutator 7 are integrally formed on the bobbin 5. The bobbin 5 has shoulders 8 and opening end faces 9 at both axial ends, and strands 10 are aligned and wound obliquely to the axis on the peripheral surface 11 of the bobbin 5 between the shoulders 8 and the opening end face 9. In other words, the strands 10 are aligned and wound to form strand zones 20, and engaged with the opening end face 9 of the side far from the portion of the shoulder 8 engaged with the strands 10 at a rotational shaft 6 as a boundary. After a set of symmetrical strand zones are formed, the bobbin 5 is removed. In this manner, balanced cylindrical wound body with a bottomed cup can be obtained.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention (c) relates to a bottomed cup tube winding body used as an armature for use in brushless motors, slotless morphs, coreless motors, and the like.

The applicant filed a patent application No. 57-1180 on July 7, 1980.
No. 15, a method for manufacturing a cylindrical winding body, Patent Application No. 147989, Patent Application No. 57-1, filed on August 26, 1981.
No. 47990 has been filed for a cylindrical winding body. This cylindrical winding body has a bottomed cup cylindrical shape, and the strands are directly wound around a cylindrical jig serving as a stranded wire winding body. The wound strand body is formed from this cylindrical jig and the wound strand body is increased (9).

The present invention aims at a new improvement of this bottomed cup cylindrical wound body, and its purpose is to provide a well-balanced bottomed cup cylindrical wound body.

Examples of the cylindrical winding body according to the present invention will be described below based on the drawings.

FIG. 1 shows the main parts of the manufacturing apparatus used for manufacturing the bottomed cup cylindrical winding body according to the present invention. In FIG. 1, 1 is a cylindrical jig; Jig 1 is
The inner cylinder 2 and the outer cylinder 3 are generally separated from each other, and the outer cylinder 3 is configured to rotate together with the inner cylinder 2, and the cylinder 2 has an insertion hole 4 formed in its center. The outer cylinder 3 is rotated together with the inner cylinder 2 by a rotational drive source (not shown), and a bobbin 5 as an imaginary wound body is attached to the outer cylinder 3, and the bobbin 5 has a cylindrical shape. has a rotating shaft 6 and a commutator 7.
is integrally formed by a molding method, and this rotating shaft 6
There are 4Kn insertion holes. Here, this bobbin 5
In order to reduce the air gap, a hot-pressed film or sheet is used, and this bobbin 5
It has a short cylindrical shape with a large diameter according to its axial length, and a fuser 7 for connecting to the commutator 7 is attached thereto. The bobbin 5 has a shoulder portion 8 and an open end surface 9 at both ends in the axial direction, and the commutator 7 extends in the axial direction. Element wire 1
0 is wound on the circumferential surface 11 of the bobbin 50 between the shoulder portion 8 and the opening end surface 9 in a diagonal direction with respect to the axis of the bobbin 5. On the side of the shoulder @8 of the bobbin 5, As shown in Figure 2,
A pair of elastic rollers 12 and 15 are installed symmetrically on both @VJ with the rotating shaft 6 as a boundary, and 14.15 indicates the supporting axis, and a pair of elastic rollers 16 and 17 are installed on both sides of the rotating shaft 6 as a boundary. Then both gJK were installed tr, ta.

19 indicates its supporting axis. This pair of elastic rollers 16.1
7, when one of them is pressed against the circumferential surface 11 of the bobbin 5, the other is separated from the circumferential surface 11 and does not become an obstruction when winding the wire 10. It is like that. Incidentally, since the wire 1o is bonded to the bobbin 5 by means such as heat fusion or adhesive, there is no problem even if the pair of elastic rollers 16 and 17 are alternately moved away from and approached. - @ line connecting another elastic roller 12, 15 and a pair of elastic rollers 16, 1
Each elastic roller 12, 15, 16° 17 is installed so that it is perpendicular to the straight line connecting 7, and each elastic roller 1
2, 15.16° 17 is each support shaft 14, 15, 18.19
It can be rotated freely in K increments.

As shown in FIG. 1, the elastic rows 212 and 13 are shaped like a truncated cone and shoulder the tapered surfaces 12a and 13a.
These tapered surfaces 12a, 13a are pressed against the edge of the shoulder portion 8 a53! As shown in FIG. 3, the elastic rollers 16 and 17 are configured such that their circumferential surfaces are pressed against the circumferential surface 11 of the bobbin 5 over the entire axial direction. Each elastic roller 12, 13, 16, 17 has a function as a rolling locking member for the wire 1o, and the wire 10 is wound in an aligned manner as shown in FIG. Here, it is assumed that the opening end surface 9 is locked on the side far from the part of the shoulder 8 where the wire 1o is locked, with the rotation axis 6 as a boundary,
To explain this based on FIG. 4, as shown by the symbol ■, the strands are moved toward the elastic roller 13 along the shoulder surface so that the strands 1° can be aligned. 10 are arranged in a chord shape, and are locked to the shoulder part 8, and as shown by the code amount, I , the surface of the elastic roller 16 and the surface of the outer cylinder 3 ahead of the open end so that the elastic roller 16 can be used toward the open end surface 9 to prevent the strands from sliding 1° and align with the open end surface 9. After passing through the elastic roller 16, the strand 10 is moved in the direction where the elastic roller 12 is present and toward the shoulder 8, as shown by the symbol ■. is fixed to the layer material 8 again, and this process is repeated to form the wire band 2 on only one side.
After that, as shown by the symbol ■, the strand 1° is directed toward the elastic roller 15, and the strand 1 is rolled onto the elastic roller 16.
o is locked, turned to rotation @6 as shown by symbol ■, and locked there, and then turned to the elastic roller 15Vc again as shown by symbol ■ to reverse the winding direction. As shown by the symbol ■, the direction is in the direction where the ζ elastic roller 17 exists, and the direction is in the direction where the opening end surface 9 exists, and using this elastic roller 17, the opening end surface 9f relation iI:, , in the direction in which the elastic roller 12 exists via the elastic roller 17, and toward the shoulder 8, using the elastic roller 12 to align the strands 11 in a chord shape. As shown at 6, the wire 11 is locked to the shoulder portion 8,
This process is repeated to form wire bands 2o in a symmetrical shape on both sides of the shaft 6, as shown in FIG.

FIG. 5 shows a perspective view of the winding. When using this winding method, the pair of wire bands 20, 20, as shown in FIG.
They cross each other on the circumferential surface of the bobbin 5, and on the open end surface 9 side, the strands 10 are aligned and stacked and locked as shown in FIG. The increase in thickness towards the end is reduced. After forming a set of symmetrical wire bands 2[], 2[] in this way, the wire 10 for tapping is pulled out, and the rotary tube 5 is moved around the elastic rollers 12, 13°16. .17 by a predetermined angle and repeat the formation of a set of symmetrical wire bands. Here, the bobbin 5 is 12
It is said that sets of symmetrically shaped wire bands are formed by rotating every 0 degrees, and Figure 7 shows that there are three sets of symmetrically shaped wire bands*a. There is.

FIG. 8 shows a second embodiment of the bottomed cup cylindrical winding body according to the present invention. It is assumed that the strand is secured to the open end face 9 on the side nearer to the part of fC, and after winding the strand 10 as shown by symbol A in the figure, A set of symmetrical wire bands 20 are wound together.
According to this winding method, the wire bands 20 of the - group do not cross each other, and with this configuration, the winding angle of the wire 10 is reduced and the shoulder portion 8 Since the distance between the locking parts from to the opening end face is shortened, this results in (1) a reduction in resistance loss, (2) overlapping of surrounding wire bands, and (2) a decrease in inertia.

In addition, FIG. 9 shows an example in which the bottomed cup cylindrical winding body formed in this manner is applied to a coreless motor, and in this case, reference numeral 21 indicates the bottomed cup cylindrical winding body. 22 is a case, 23 is a case lid, 24 is a permanent magnet, and 25 is a brush.

As explained above, the present invention is a bottomed cup cylindrical winding body in which the bare belt is formed symmetrically on both sides of the rotation axis, so it is particularly suitable for short cylindrical or eccentric type. It is possible to create a bottomed cup cylindrical winding G body with the necessary balance, which means that when this bottomed cup cylindrical winding body is used as an armature, This leads to the following effects: noise reduction, ■ Even though the diameter is small for a short cylindrical flat armature, the torque is relatively large, and ■ small inertia.

[Brief explanation of the drawing]

The first figure is a vertical cross-sectional view of the main part of the manufacturing device for the bottomed cag tsutsuwaki makihitai according to the present invention, the second factor is a plan view thereof, Figure 6 is a partial cross-sectional view of the manufacturing device, and Figure 4 is an explanation of the winding method (9), and Figure 5 (a) is a perspective view of the winding method, Figure 5! (The mouth j is a partial perspective view (9), Figure 6 is a side view of the bottomed cup cylindrical winding body, Figure 7 is a plan view of the shoulder portion of the bottomed cup cylindrical winding body, 8 is an explanatory diagram showing another embodiment of the bottomed cup cylindrical winding body according to the present invention, and FIG. 9 is a lateral view when the bottomed cup cylindrical winding body according to the present invention is applied to a coreless motor. This is a vertical plan view showing the arrangement. 1...Cylindrical jig 5...Bobbin 6...Rotary shaft 8...Shoulder 9...Open end face 10...Element wire 20. ... Strand wire band patent applicant Entac Co., Ltd. -: I! 1 Figure f2m 13 24 Figure 6 (A) 5th 97 Figure n O ? 8 Procedural amendment 1. Indication of the case 1988 Patent application No. No. 206,414 2° ``A I) Name: Bottomed Cup Cylindrical Winding Body 3, Relationship with the Amended Person Case Name of Patent Applicant: Entac Co., Ltd. (and 1 other person) (2) Drawings (1) Akira, - Insert ``Renba'' in the 8th line of the 3rd page of the rule book before ``Film''. (2) Delete the line 6 on page 1M7 that says ``Product 1 Director''. 13) Ibid., page 8, lines 19 to the last line, “eclipse”
Corrected as "flat shape".

Claims (1)

[Claims] (1) Seven strands of wire are wound from the shoulder of a wire-wound body having a shoulder at its axial end over the circumferential surface of the wire-wound body in the axial direction, and the strands are aligned in one row. A bottomed cup cylindrical wound powder having a wire band formed thereon, wherein the wire band is formed in a symmetrical shape on both sides of a rotation axis as a boundary. Winding body.