JPS59105304A - Printed coil - Google Patents

Abstract

PURPOSE:To manufacture the multilayered printed coils efficiently by forming a plurality of spiral pattern circuits on one surface of a flexible insulating film, connecting the terminals of adjacent pattern circuits by conductors and folding the conductors back among each pattern circuit while stacking them one upon another. CONSTITUTION:A plurality of the spiral unit pattern circuits 11 are formed on one surface of the flexible insulating film 10 at equal pitches l, both terminals 11a of each pattern circuit 11 are each connected at the terminals 11a of adjacent pattern circuits 11 by jumper circuits 12 by copper foil, etc., and all pattern circuits 11 are connected in series. Folds 13 are formed at the central positions of the pitch l among each pattern circuit 11 of the film 10, and formed alternately to peak folds 13a or valley folds 13b, and the spiral patterns of each pattern circuit 11 are overlapped approximately when the film 10 is bent in these folds 13 and superposed one upon another.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a vent coil used in a vent motor or the like.

Printed coils with thinly wound pin circuits are thin and are not used in armatures of printed motors, etc.
However, as shown in FIGS. 1 and 2, it is known that thinly wound pattern circuits 2 and 3 are formed on both sides of an insulating film 1 by etching copper foil. Pu 11
In printed motors, printed coils are used by laminating only the required number of shells according to the characteristics and output of the motor, but the advantage of using printed coils with pattern circuits 2 and 3 on both sides as described above is that the number of printed coils can be halved. On the other hand, there is a drawback that it is not easy to form a thinly wound pattern on both sides of the insulating film 1. In addition, positioning a plurality of printed coils so that their thinly wound patterns overlap each other is also complicated, making it inefficient to manufacture multilayer coils.

This invention was made to solve the above-mentioned conventional drawbacks, and it eliminates the difficulty of forming a spring circuit on both sides of an insulating film. The object of the present invention is to obtain a printed coil that can be easily laminated in a state in which the patterns overlap correctly.

Embodiments of the present invention will be described below with reference to the drawings.

In Fig. 3, 10 is a flexible insulating film made of polyester etc.
A plurality of thinly wound unit pattern circuits (hereinafter referred to as "pattern circuits") 11 are formed in the length direction of the film 10 by arranging stones at equal pitches in the length direction of the film 10, in the form of an elongated rectangle. The pattern circuit] is a conductor foil on the film 10,
For example, after attaching copper foil, it is formed by etching to leave a thinly wound pattern of the copper foil.

Note that the film does not have to be in a film form before pasting the copper foil or the like, but may be made into a film by applying an insulating adhesive to the copper foil or the like. Both end points 11a of each pattern circuit 11 are connected to the end points 11a of adjacent pattern circuits 11 through jumper circuits 12 made of copper foil or the like, so that all the pattern circuits 11 are connected in series. Twelve jumper circuits are formed on the back surface of the film JO. Therefore, the outer end points 11b of the pattern circuit 11 at both ends are connected to this circuit 11.
It is considered to be the terminal of the main coil.

A pinch 2 is provided in the middle of each pattern circuit 11 of the film 10.
A fold line 13 is formed at the center position. 13 of these folds are alternately mountain folds 13a.

Valley folds 13b are made, and the film lO is folded along these folds 1
3. When folded and folded as shown in Figure 4, each part
The spiral pattern crabs of the main circuit 11 are arranged to overlap each other. In this manner, a multilayer coil in which thinly wound pattern circuits are laminated in multiple layers can be easily obtained by simply folding the coils. Since the pattern circuit 11 is formed only on one side, the circuit is formed in a cylindrical shape. Although the jumper circuit 12 is provided on the back side, since the formation such as a straight line is simple, there is no great difficulty even if it is on the back side.

FIG. 5 shows another embodiment, in this case the film 20
A plurality of pattern circuits 21 are formed in an array of equal pitches in the horizontal direction and equal pitches in the vertical direction.
The end points 21a of 1 are connected to each other by a jumper circuit 22a, and the rightmost pattern circuit 21 of the first column is connected to the rightmost pattern circuit 21 of the second column, and the leftmost pattern circuit 21 of the second column is connected to the third column. Leftmost pattern circuit 21. ! The rightmost pattern circuit 21 in the third column and the rightmost bar circuit 21 in the fourth column are connected at their adjacent end points 2ib by vertical jumper circuits v622b, so that all the pattern circuits 21 are connected in series. has been done. The outer end points 21c of the pattern circuits 21 at the left end of the first row and the left end of the fourth row are terminals of this printed coil. As in the previous embodiment, a pattern circuit 21 is formed on the front surface of the film 20, and jumper circuits 22a and 22'* are formed on the back surface of the film 20.

Regarding each row in the horizontal direction, a crease 23 (indicated by a one-dot chain line) is formed in the middle of each pin circuit 21, as in the previous embodiment. It was cut leaving the right fathom part (the cut line is shown with a smiley line), and the second
The gap between the third and third rows is cut leaving the left end, and the gap between the third and fourth rows is cut leaving the right end, and a crease 24 is formed in the uncut portion of each row. I'm here. In addition,
The fold lines 23 and 24 are also mutually mountain folds and valley folds.

As shown in FIG. 6, the printed coil thus formed is folded and folded at each fold line 23 and 24, so that the thinly wound patterns of each pattern circuit 21 almost overlap, and the pattern circuit 21 becomes a multilayer structure. It can be a multilayer coil stacked on top of each other.

As explained above, the printed coil of this research has multiple thinly wound pattern circuits made of conductors on one side of a flexible insulating film, and the end points of adjacent pattern circuits are connected with conductors to complete the entire pattern. Connect the circuits in series, form a crease between each pattern circuit, and % t=l! When the insulating film is folded along the fold line and folded, the thinly wound patterns of each pattern circuit almost overlap. In contrast, there is no difficulty in forming a patterned circuit, and when multi-layering is required, there is no need for the trouble of positioning a plurality of printed coils so that each of the thinly wound patterns overlaps each other.

It is easy to form a pattern circuit, and a multilayer block 11 is used.
can produce coils extremely efficiently.

[Brief explanation of drawings]

Fig. 1 is a plan view of a conventional printed coil, Fig. 2 is a sectional view of the same, and Fig. 3 and subsequent figures show embodiments of the present invention.
Figure (d) is a plan view of the printed coil, Figure 4 is an explanatory diagram showing how to use it, Figure 5 is a plan view showing another embodiment, and Figure 6 is a perspective view explaining how to use it. 10.20...Flexible insulation film, 11.2
1...Unit pattern circuit, 11a, 11b, 2
1a. 2 l b , 21 c-='XA point% 12.2
2a, 22b...Jumper circuit, 13.23.
24...Fold, 13a...Mountain fold,
13b... Each fold.

Claims (1)

[Claims] A plurality of thinly wound top pattern circuits made of conductors are formed on one side of a flexible insulating film, and the end points of adjacent unit pattern circuits are connected with conductors to connect all the pattern circuits in series. When the flexible insulating film is folded at the creases and folded over each other, each Ptk (l-pin circuit spiral shape A) is formed.
4-printed coil that almost overlaps.