JPH0368115A - Assembly of electromagnetic coil - Google Patents

Abstract

PURPOSE:To unnecessitate temporary fixing of a bent part using an adhesive tape by a method wherein the bent part of insulating paper is inserted into the hollow section of a coil winding, the bent part is superposed on the coupling part of the insulating paper on the center leg of an E-type core. CONSTITUTION:The bending parts 11 and 12, formed on the edge inside horizontal U-shaped parts 8 and 9 of insulating paper 6, are inserted into the hollow part of a coil winding 7, and when the bending parts 11 and 12 are superposed on the coupling part 10 of the insulating paper 6 using the center leg 4 of an E-type lamation core 1, an electromagnetic coil composed of an I-type laminated core 5, the coil winding 7 which is wrapped in a sheet of paper 6, and the core 1, is assembled. In this case, it is unnecessary to temporary fix the bent parts of the insulating paper using an adhesive tape, assembling man-hours are reduced, and the mechanization and automation of assembling of the title electromagnetic coil can be facilitated.

Description

[Detailed description of the invention] (Industrial)
・This invention relates to an improvement in the method of assembling an electromagnetic coil in which an annular coil body is fitted onto a core body through a sheet of insulating paper.

[δ (Song dynasty technology)]

y= rF3 Figures 5 and q.6 show an example of an electromagnetic coil from iiC, which is made by fitting a ring-shaped coil body through a sheet of insulating paper to a core body that combines a laminated iron core with a scrap iron core type. As shown in the figure. Figure 5 shows the state in the middle of assembly, and Figure 6 shows the state after assembly.
3 laminated iron core, m (52), (53
) is slightly longer and more imposing than the central leg (50). (55
) is an I-type laminated core and is connected to the ends of both legs (52) and (b3) of the E-type laminated core (51), thereby forming a core body together with the E-type laminated core (51). (
5G) is an insulating paper, and (57) is an annular coil body mounted on the iron core body through the insulating paper (5G). As shown in No. 5I'4, the insulating paper (5G) has a pair of U-shaped parts (58 ).

(59), and the inner edges of both U-shaped parts (58) and (59) are 3! It is composed of a connecting part (Go) that is connected in an i-like manner, and presser parts (61) and (G2) that are bendably provided on the outer edges of both the U-shaped parts (58) and (59).

When assembling such an electromagnetic coil, first attach both U-shaped parts (5g) and (59) of the insulating paper (56) to the i14 part of the ETFj laminated core (51), as shown in FIG. 7(a). Insert the insulating paper (5G) and attach it to the E-type laminated core (51). 4. Next, as shown in FIG. 7(b), press the holding parts (61) and (62> of the insulating paper (5G) Push outward. Then, insert the two opposite sides of the coil body (57) into both U-shaped parts (58) and (59) of the insulating paper (5G) as shown in No. 7 [ ] (c). Then, as shown in Figure 7 ((1),
Fold the retaining parts (01) and (62) of the insulating paper (56) into a circle (the coil body (57)) to remove the connecting part (
6o) and then join the I7B laminated core (55) to the tips of the V4 quadruple legs of the E-type laminated core (51) as shown in Figure 7 ((1)) to complete the electromagnetic coil assembly. do.

``Problems to Invent and Solve'' However, the conventional assembly method as described above had the following problems.

That is, the holding parts (61) and (G2) of the insulating paper (5G) used in the above assembly method are bent inward in advance so that they can be bent inward, and then Before inserting the coil body, spread it outward as shown in FIG. , it becomes difficult for Japanese people to use the coil body. In particular, when assembling the electromagnetic coil automatically by a machine, the coil body (57) is inserted into both U-shaped portions (58) of the insulating paper (56) in the above-mentioned state.
, (59).

Furthermore, in this assembly method, after inserting the coil (book (57) into both U-shaped parts (58) and (5') of the insulating paper (56)), as in No. 71J(d), Paper (56
) are bent inward to cover the coil body (57) and overlap the connecting part (60), but the presser parts (61) and (62) are Figure 7 (C1
) As shown by the dotted line inside the E-type laminated core (
51) and the I-shaped laminated core (55), making it impossible to join both cores together. Because of these problems, this method is not suitable for mechanizing the assembly of electromagnetic coils or for automatic fusing.

The present invention has been made in view of the above points, and provides a method for assembling an electromagnetic coil that does not require adhesive tape or the like to hold down the insulating paper during assembly, and is suitable for mechanization and automation of assembly. The purpose is to

[Means to solve the problem]

The present invention provides a method for assembling an electromagnetic coil that meets the above-mentioned purpose by adding innovations to the structure of the insulating paper, the way the insulating paper wraps the coil and f coil bodies, and the way it fits into the iron core. It is something.

That is, a pair of U-shaped portions that serve as insulating paper wrap around two opposing sides of the coil body inserted into the groove of the E-shaped laminated core, and a connecting portion that connects the outer edges of both U-shaped portions. An insulating paper consisting of both U-shaped portions and bent portions formed on the inner edges is prepared. Then, apply this to the annular coil body, put the inner edges of both the U-shaped parts into the hollow part of the coil body, and wrap the two opposing sides of the coil body with the U-shaped parts. , place the U-shaped part of the insulating paper wrapped around the coil body into the groove formed between the center leg of the E3F3 laminated core and the slightly longer legs (ll #7 and af).
The I-shaped scrap core is assembled and joined to the tips of both legs of the E-shaped laminated core.

[Operation, 1] According to this method, the outer edges of the pair of U-shaped portions of the insulating paper that wrap around the two opposite sides of the coil body are connected by the connecting portion, and the When the bent portion on the inner edge of the U-shaped portion is pushed into the groove of the single-shaped EF3 laminated core, : Since the tip of the central leg of the laminated core is automatically loaded onto the connecting portion, no adhesive tape or the like is required.

[Example 1] Examples of the present invention will be explained below using FIGS. 1 to 4 IVU.1 An electromagnetic coil using the assembly method according to the present invention is shown in FIGS. 1 and 2. The intermediate state, 2nd C17, is the state after assembly. In these figures, (1) is an E-layer laminated iron core, and its both sides 1111 (21, < 3) are formed to be slightly longer than the central till (4). (5) is the I-layer laminated core and the E
By joining the tips of both sides m (2) and (3) of the laminated iron core (1), a core body is formed together with the EJFJ laminated iron core (1). (G) is an insulating paper, and (7)a is an annular coil body that is fitted onto the iron core through the insulating paper (6). As shown in FIG. 3, the insulating paper (6) has a pair of U-shaped parts (8) and (9) that wrap around two opposing sides of the coil body inserted into the groove of the E-layer laminated core; The outside of both U-shaped parts (8) and (9) (the connecting part connecting the 1 m edges)
10) and bending parts (11) and (12) which are bendably provided on the inner edges of both the U-shaped parts.

In the place 3 for assembling the electromagnetic coil using such insulating paper, first, as shown in FIG. 4(a) or FIG. 1(ao),
First, the connecting portions (10) of the insulating paper (G) are applied to two sides of the coil body (7) that are inserted into the grooves of the laminated core, and the 14th Ii? I (+1>) or as shown in Fig. 4 (bo), the inner edge of the U-shaped part of the insulating paper (6) is pressed into the hollow part of the coil body (1), and the two opposing sides of the coil body (7) are The sides are wrapped in U-shaped parts (8) and (9), and the first
Figure 1 (a) or Figure 4 (11) is when assembling by placing insulating paper (6) on the upper side of the coil body (7).
o) or Fig. 4 (bo) is the case where the insulating paper (6) is placed on the underside of the coil body (7) and assembled, and Fig. 4 (ao)
Or, in the case of FIG. 4 (bo), it is necessary to insert the inner edge of the U-shaped part into the hollow part of the coil body (7) and then turn the coil body (7) over.

Next, as shown in FIG. 4(C), the :1-shaped parts (8) and (9) of the insulating paper (6) wrapped around the coil body (7) are
Insert into the groove formed between the center l1l (4) of the laminated core 1) and the slightly longer both side legs (2) <3). Finally, as shown in Figure 4 ((1), the I-layer laminated core (5) is combined and joined to the tip of the E-layer laminated core (1), both ftf 4m (2), (3). be.

〔Effect of the invention〕

As is clear from the above description, in the present invention, j
Outside the U-shaped part of the insulating paper like the IC! Instead of using the method of wrapping the coil body by bending the bent part (holding part) formed on the edge of No. 11 inward from the direction of combining the single-layer laminated core, it was formed on the inner f111I edge of the U-shaped part of the insulating paper. The bent part was inserted into the hollow part of the coil body, and it was aligned with the connecting part of the insulating paper at the tip of the center leg of the E-type M-layer core. There is no need for temporary fixing with adhesive tape, etc., and the number of steps is small, making it extremely suitable for mechanization and automation of one assembly.

[Brief explanation of drawings]

Fig. 4 is a perspective view of an electromagnetic coil assembled according to the present invention during assembly, and Fig. 4 is a perspective view of the electromagnetic coil assembled according to the present invention.
Figure 1 is a cross-sectional view of the insulating paper used in the present invention; The perspective view of FIG. 1 is a process diagram of a conventional assembly method. Figure 1 Figure 7 Figure 4 Procedural amendment June 15, 1990

Claims (1)

[Claims] (1) An electromagnetic coil consisting of a core body consisting of an E-type laminated core (1) and an I-type laminated core (5), and a ring-shaped coil body (7) fitted through a sheet of insulating paper (6). In the assembly method, a pair of U-shaped parts (8) and (9) are used as the insulating paper (6) to wrap around two opposite sides of the coil body (7) which is inserted into the groove of the E-shaped laminated core (1). ), a connecting portion (10) that connects the outer edges of both the U-shaped portions (8) and (9), and a bend formed on the inner edges of the U-shaped portions (8) and (9). Part (11)
, (12) is prepared, this is applied to the annular coil body (7), and the insulating paper (6) is
) of both U-shaped parts (8) and (9) of the coil body (7
) and wrapping the opposite sides of the coil body (7) with the U-shaped parts (8) and (9); U-shaped part (8), (
9) to the center leg (4) and both side legs (2) of the E-type laminated core (1).
) and (3), inserting the coil body (1) into the central leg (4) of the E-type laminated core (1) by inserting it into the grooves (13) and (14) formed between the coil body (1); A method for assembling an electromagnetic coil comprising the steps of joining an I-type laminated core (5) to the tips of both legs (2) and (3) of an E-type laminated core (1).