JP2851328B2 - Coil winding device for flat motor - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a flat motor coil winding device for forming a coil element used in a flat motor.

[Conventional technology]

Conventionally, in order to form a coil element used for a flat motor, for example, a coil winding device for a flat motor as disclosed in Japanese Patent Application Laid-Open No. 56-15952 is used.

FIG. 5 shows a coil element formed by the coil winding device for a flat motor disclosed in this publication. The coil element is formed by winding a coil wire e in a plurality of times on the same plane. It is formed in a flat shape.

FIGS. 6 and 7 show a coil winding device for a flat motor disclosed in this publication. The coil winding device for a flat motor draws out a coil wire e wound around a bobbin 18 and a trumpet. Through the inside of 19, repeated winding in a pile on the same plane, for example, 25
This is for molding the coil elements E.

That is, this flat motor coil winding device is:
A trumpet guide 21 and a coil press guide 22 are provided on the base 20, and the trumpet 19 and the coil press 24 slide along the guides 21 and 22, but the two form a pair. Since they need to move, they are connected to each other by a link 25.

A mold assembly 26 is provided between the two guides 21 and 22 to support the bearing 2.
It is rotatably supported by 7.

This mold assembly 26 is formed by connecting 25 mold pieces 28 to each other and having a shaft 29 inserted through the center. A handle 30 is attached to one end of the shaft 29 so as to rotate.

As shown in FIG. 8, each of the mold pieces 28 has a through hole 32 through which a shaft 29 is inserted at the center of a disk 31.

The through hole 32 has a substantially trapezoidal shape as a whole in the same manner as the longitudinal cross-sectional shape of the shaft 29, but projects from a peripheral wall thereof.
A projection 35 is provided, and a spacer 35 is fixed to an end surface of the projection 33 with a screw.

This spacer 35 is for forming a gap between the mold pieces 28 that is slightly wider than the diameter of the coil wire e.

Therefore, when the shaft 29 is inserted into the mold piece 28, the outer end surface 35a of the spacer 35, together with the outer peripheral surface of the shaft 29, serves to form a part of the trapezoid that is the shape of the coil element E. It is.

In the coil winding device for a flat motor configured as described above, first, all 25 mold pieces 28 are inserted into the shaft 29 and fixed using an appropriate fastener.

Thereafter, when the winding around each mold piece 28 is completed, the shaft 29
At the same time, the mold assembly 26 is taken out and heated. By this heating, the epoxy resin on the outer peripheral surface of the coil wire e is melted and, when it cools, the windings are temporarily bonded to each other.

After this temporary bonding, the fastening tool is removed, the shaft 29 is pulled out, and the entire body is shaken with the coil wires 13 at both ends, so that only the mold piece 28 in which the spacer 35 is in contact with the inner periphery 15, the torque generating portion 16, etc. After dropping, as shown in FIG. 9, 25 coil elements E connected by connection lines e can be easily formed.

[Problems to be solved by the invention]

However, in such a conventional flat motor coil winding device, when the coil wire e is moved from the mold piece 28 to the mold piece 28 to wind the coil wire e, as shown in FIG. It is very difficult to reliably position the line e at the winding start point 27 and the winding end point 39, and the winding start point 37
In addition, at the winding end point 39, there is a problem that it is difficult to securely temporarily bond the coil wire e.

The present invention has been made in order to solve the conventional problem, and provides a coil winding device for a flat motor that can reliably position a coil wire at a winding start point and a winding end point. Aim.

[Means for solving the problem]

A coil winding device for a flat motor according to a first aspect of the present invention is a flat motor coil winding device for forming a flat coil element in which a coil wire is wound a plurality of times on the same plane in a stacked manner by a single coil wire. In a coil winding device, a plurality of flat winding jig winding jigs arranged on the same axis, and a shaft that passes through a through hole provided at the center of each winding jig and supports these winding jigs Having a protrusion on one side of the winding jig around the through hole for winding the coil wire in a plurality of stacks, on an outer peripheral portion of the winding jig, A positioning notch is formed, and the protrusion has a substantially trapezoidal shape including a top side, a bottom side, and a side having a tapered surface with a tapered tip, and each corner has an arc shape, and the positioning notch is From the cuts from the X direction and the Y direction The angle section, the sides of the protruding portion of the winding start side of the coil wire when extended to the upper side, and a straight line inclined at a predetermined angle upper side from the extension line,
When the side of the coil wire at the end of the winding is extended to the upper side, a position where a straight line inclined to the upper side by a predetermined angle from this extended line intersects.

A flat motor coil winding device according to a second aspect of the present invention is the flat motor coil winding device according to the first aspect, wherein a coil wire is provided on a side surface of the winding jig positioned between the corner of the positioning notch and the projection. Are formed in the guide groove for guiding the wire from the corner to the protrusion.

(Operation)

In the coil winding device for a flat motor according to the first aspect, at the start of winding the coil wire around the projecting portion of the winding jig, the coil wire is positioned at a corner of the positioning notch of the winding jig. Extends toward the outer periphery of the protrusion.

On the other hand, when the winding of the coil wire around the projecting portion of the winding jig is completed, the coil wire wound around the outer periphery of the projecting portion extends toward the corner of the positioning notch of the winding jig.

In the coil winding device for a flat motor according to the second aspect, at the start of winding the coil wire around the projecting portion of the winding jig, the coil wire is positioned at a corner of the positioning notch of the winding jig. Extends along the guide groove toward the outer periphery of the protrusion.

〔Example〕

1 and 2 show details of a winding jig shown in FIG. 3, and FIG. 3 shows a flat motor for a flat motor according to the present invention. 1 shows a main part of an embodiment of a coil winding device.

In FIG. 3, reference numeral 41 denotes a plurality of flat winding jigs arranged on the same axis.
, A shaft 43 is inserted.

That is, in the center of each winding jig 41, FIG.
As shown in the figure, a through hole 47 having a key groove 45 is formed.

On the other hand, a keyway 49 formed in the shaft 43 has a key 51
The shaft 43 is inserted into the through-hole 47, and the key 51 is fitted into the key groove 45, so that each winding jig is fixed.
41 is supported so as to rotate with the rotation of the shaft 43.

On one side of the winding jig main body 53 of the winding jig 41, a protruding portion 55 for winding the coil wire e in a plurality of stacks is formed.

The protruding portion 55 has a substantially trapezoidal shape including a top side 57, a bottom side 59, and side sides 61, and has a shape in which each corner is connected by an arc.

In addition, the protruding portion 55 has a tapered surface such that the tip is tapered.
It is 63.

A positioning notch 65 is formed on the outer periphery of the winding jig body 53.

The positioning notch 65 is formed by providing cuts in the winding jig 41 in the X direction and the Y direction that intersect at the corner 67.

The corner portion 67 forms a support for positioning the coil wire e at the start of winding the coil wire e around the projecting portion 55 of the winding jig 41,
A top surface 68 parallel to the upper side 57 intersects with the extension 57 of the coil wire e at the end of the winding of the coil wire e, and forms a guide portion for guiding the extension 57 to the corner 67.

As shown in FIG. 4, when the side edge 61 of the coil wire e on the winding start side is extended to the upper side 57, the corner 67 of the positioning notch 65 extends from the extension line 69 by a predetermined angle α. When a straight line 71 inclined toward the upper side 57 and a side 73 of the coil time e at the end of the winding are extended toward the upper side 57, a predetermined angle β
The position is such that a straight line 77 inclined toward the upper side 57 intersects.

In this embodiment, as shown in FIG. 1, a straight line 71 shown in FIG. 4 is provided on the side surface of the winding jig body 53 located between the corner 67 of the positioning notch 65 and the projecting portion 55. A guide groove 79 for guiding the coil wire e from the corner portion 67 to the protruding portion 55 is formed along.

In the coil winding device for a flat motor configured as described above, when the winding of the coil wire e around the projecting portion 55 of the winding jig 41 is started, as shown in FIG. The coil wire e is positioned at the corner 67 of the notch 65, and the coil wire e extends toward the outer periphery of the protrusion 55 along the guide groove 79.

Then, the winding jig 41 is rotated by the rotation of the shaft 43, and the coil wire e is wound around the protruding portion 55 a plurality of times on the same plane in a stacked state, thereby forming a flat coil element E.

When the winding of the coil wire e around the protrusion 55 of the one winding jig 41 is completed, the coil wire e wound around the outer periphery of the protrusion 55
Extends toward the corner 67 of the positioning notch 65 of the adjacent winding jig 41.

Thus, in the coil winding device for a flat motor configured as described above, the shaft 43 is inserted through the center of a plurality of flat winding jigs 41 arranged on the same axis, and these winding jigs are used. In addition to supporting the shaft 41 so as to rotate with the rotation of the shaft 43, a projecting portion 55 is formed on one side of the winding jig 41 for winding the coil wire e a plurality of times in a stacked state. Since the positioning notch 65 was formed on the outer periphery of 41,
At the start of winding the coil wire e around the projection 55 of the winding jig 41,
The coil wire e is located at the corner 67 of the positioning notch 65 of the winding jig 41, and the coil wire e extends toward the outer periphery of the projection 55, while the coil wire e extends to the projection 55 of the winding jig 41. When the winding of the coil wire e is completed, the coil wire e wound around the outer periphery of the protrusion 55
Is extended toward the corner 67 of the positioning notch 65 of the adjacent winding jig 41, so that the coil wire e is reliably positioned at the winding start point 81 and the winding end point 83. It becomes possible.

In the coil winding device for a flat motor configured as described above, the corner 67 of the positioning notch 65 and the protrusion
Since a guide groove 79 for guiding the coil wire e from the corner 67 to the protrusion 55 is formed on the side surface of the winding jig body 53 located between the coil wire e and the projection 55 of the winding jig 41. At the start of winding, the coil wire e is positioned at the corner 67 of the positioning notch 65 of the winding jig 41, and the coil wire e extends toward the outer periphery of the protrusion 55 along the guide groove 79. Therefore, the coil wire e can be more reliably positioned at the winding start point 81.

Further, in the coil winding device for a flat motor configured as described above, the position of the corner 67 of the positioning notch 65 is changed to the winding start side of the coil wire e as shown in FIG. When the side 61 is extended to the upper side 57 side, when a straight line 71 inclined to the upper side 57 side by a predetermined angle α from the extension line 69 and the side 73 of the coil wire e at the end of the winding are extended to the upper side 57 side, This extension
Since the position at which the straight line 77 inclined to the upper side 57 at a predetermined angle β intersects from the position 75, a predetermined coil element E shape can be reliably obtained, and the temporary adhesive strength of the outermost coil wire e can be reduced. It is possible to improve.

That is, the side 61 on the winding start side of the coil wire e is
When extended to the side, a predetermined angle α upper side 57 from this extension line 69
Since the coil wire e is guided along the straight line 71 inclined to the side, a predetermined coil element E shape can be reliably obtained.

Further, when the side 73 of the coil wire e at the end of the winding is extended toward the upper surface 57, the coil wire e is guided from the extension 75 along a straight line 77 inclined toward the upper side 57 at a predetermined angle β. Therefore, the outermost coil wire e is securely joined to the inner coil wire e, and the temporary adhesive strength can be improved.

Further, in the coil winding device for a flat motor configured as described above, since the tapered surface 63 is formed on the projection 55, the coil wire e wound around the projection 55 can be easily removed from the projection 55. It becomes possible to remove it.

Note that, in the above-described embodiment, the apparatus for rotating and winding the winding jig has been described. However, it is needless to say that the winding jig may be fixed and the fryer may be rotated and wound.

〔The invention's effect〕

As described above, in the coil winding device for a flat motor according to the first aspect, a protruding portion is formed on one side of the winding jig for winding the coil wire a plurality of times in a stacked state. A notch for positioning is formed on the outer periphery of the tool, and the protrusion has a substantially trapezoidal shape having a tapered surface with a tapered tip, and each corner has an arc shape, and the notch for positioning intersects at the corner. Direction, and cuts from the Y direction.
When the side of the protruding part on the winding start side of the coil wire is extended to the upper side, a straight line inclined to the upper side by a predetermined angle from this extended line, and the coil wire at the end of winding, the side is extended to the upper side When the coil wire is wound around the projecting portion of the winding jig at the start of winding the coil wire, the position of the notch for positioning the winding jig is A coil wire is located at the corner, and this coil wire extends toward the outer periphery of the projecting portion. On the other hand, at the end of winding the coil wire around the projecting portion of the winding jig, the coil wire is wound around the outer periphery of the projecting portion. Since the coil wire is extended toward the corner of the positioning notch of the winding jig, the coil wire can be reliably positioned at the winding start point and the winding end point.

In the coil winding device for a flat motor according to the second aspect, the guide groove for guiding the coil wire from the corner to the protrusion is formed on the side of the winding jig positioned between the corner of the positioning notch and the protrusion. When starting winding of the coil wire around the projecting portion of the winding jig, the coil wire is positioned at the corner of the positioning notch of the winding jig, and this coil wire is projected along the guide groove. Therefore, there is an advantage that the coil wire can be more reliably positioned at the winding start point.

[Brief description of the drawings]

FIG. 1 is a front view showing details of the winding jig of FIG. FIG. 2 is a side view of FIG. FIG. 3 is a side view showing a main part of an embodiment of the coil winding device for a flat motor according to the present invention. FIG. 4 is an explanatory view showing the positions of the corners of the positioning notch for forming the winding jig of FIG. FIG. 5 is a front view showing the coil element. FIG. 6 is a top view showing a conventional coil winding device for a flat motor. FIG. 7 is a side view of FIG. FIG. 8 is a perspective view showing the mold piece of FIG. FIG. 9 is an explanatory view showing a flat motor coil formed by the flat motor coil winding device of FIG. [Description of Signs of Main Parts] 41: Winding jig 43: Shaft 55: Projecting portion 65: Notch for positioning 67: Corner 79: Guide groove.

──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Kazutaka Saino 5-24-15 Minamidai, Nakano-ku, Tokyo Calsonic Corporation (56) References JP-A-56-12845 (JP, A) JP-A Sho 56-141765 (JP, A) JP-A-56-159952 (JP, A) Japanese Utility Model Application Sho 56-129173 (JP, U) Japanese Utility Model Application Publication No. 59-189468 (JP, U) (58) Fields investigated (Int. Cl. ⁶ , DB name) H02K 15/04

Claims (2)

(57) [Claims] A flat motor for continuously forming a flat coil element (E) in which a coil wire (e) is wound a plurality of times in the same plane on a same plane by a single coil wire (e). Flat coil jigs arranged on the same axis (41)
And a shaft (43) that passes through a through hole (47) provided at the center of each winding jig (41) and supports these winding jigs (41). On one side, a projecting portion (55) for winding the coil wire (e) a plurality of times in a stacked state is formed around the through hole (47), and an outer periphery of the winding jig (41) is formed. Notch for positioning (65)
The protruding portion (55) has a substantially trapezoidal shape including a top side (57), a bottom side (59) and a side (61) having a tapered surface with a tapered tip, and each corner has an arc shape. The notch for positioning (65) crosses the corner (67) at X
Direction and Y direction, the corners (6
7) is such that when the side (61) of the projecting portion (55) on the winding start side of the coil wire (e) is extended toward the upper side (57), a predetermined angle ( α) When the straight line (71) inclined to the upper side (57) and the side (73) of the coil wire (e) at the end of the winding are extended to the upper side (57), the extension line (75) A coil winding device for a flat motor, characterized in that it is located at a position where a straight line (77) inclined toward the upper side (57) by a predetermined angle (β) intersects with the straight line. 2. A coil wire (e) extending from the corner (67) to the side of the winding jig positioned between the corner (67) of the positioning notch (65) and the projection (55). The coil winding device for a flat motor according to claim 1, characterized in that a guide groove (79) for guiding is formed in the (55).