JPH0113371Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION This invention relates to a voltage coil winding frame in which a lead terminal is provided on the flange of an electromagnet used, for example, in a wattmeter.

Conventionally, there has been a device of this type as shown in FIG. In the figure, 1 is a body part around which a voltage coil (not shown) is wound, 2 is a collar part provided at both ends of this body part 1, and 3 is a body part fitted and fixed to the side end of the upper collar part 2. The lead terminal 4 is a hole formed in the lead terminal 3 through which an external lead wire 5 (FIG. 2) is inserted.

In the above configuration, the pull-out terminal 3 shown in FIG.
The collar 2 is inserted and fixed into the fitting hole 6 of the collar 2, but since the collar 2 is generally a resin molded product, there is a limit to the dimensional accuracy of the fitting hole 6. Moreover, since a somewhat strict fit tolerance is applied to prevent the pull-out terminal 3 from slipping out in the tight-fitting state, insertion of the pull-out terminal 3 is troublesome and becomes an impediment to mass production.

Also, when inserting the core wire portion 5a of the external lead wire 5 into the insertion hole 4 of the drawer terminal 3 and connecting it to the drawer terminal 3 by soldering or the like, there is a gap L between the bent portion 3a of the drawer terminal 3 and the collar portion 2. If the core wire 5a is small and the core wire 5a is long, the core wire 5a is thick and difficult to bend, and comes into contact with the collar 2, making connection troublesome.
If the core wire 5a is short, connection becomes difficult. For this reason,
In order to peel off the outer skin of the external lead wire 5 to expose the core wire 5a, strict control of the dimensions of the core wire 5a is required, resulting in poor workability.

This invention was made in order to eliminate the above-mentioned conventional drawbacks, and by providing a fitting hole for fixing a pull-out terminal in the collar part and forming a notch hole formed by expanding this fitting hole, It is an object of the present invention to provide a voltage coil winding frame that is easy to attach a drawer terminal to a flange part and connect an external lead wire, and has good assemblability.

An embodiment of this invention will be described below with reference to the drawings. In FIG. 3, a semicircular cutout hole 7, which is an enlarged version of the insertion hole 6, is provided in the upper part of the insertion hole 6 formed in the collar 2 of the voltage coil winding frame. ing.

In the above configuration, the pull-out terminal 3 shown in FIG.
To attach the terminal to the flange 2, it is done by press-fitting the pull-out terminal 3 into the insertion hole 6 as in the conventional example, but the press-fitting force of the pull-out terminal 3 is adjusted by the cutout hole 7 of the fit-in hole 6. Therefore, attachment of the lead terminal 3 becomes easy.

Further, the connection of the external lead wire 5 to the extraction terminal 3 is performed by inserting the core wire 5a of the external lead wire 5 into the insertion hole 4 and fixing the connection by soldering or the like, as in the conventional example. At this time, the bent portion 3a
serves as a stopper for the outer sheath of the external lead wire 5, and even if the length of the core wire 5a is too long due to variations in the dimensional accuracy of peeling the outer sheath, it can be inserted into the notch hole 7. It can be positioned in contact with the bent part 3a, and the external lead wire 5 is attached to the soldered part of the core wire 5a and the terminal 3.
Since the outer skin does not come off, it can be easily soldered.

In the above embodiment, the notch hole 7 formed by expanding the insertion hole 6 has a semicircular shape, but it is not limited to this, and can be freely set according to the press force of the pull-out terminal 3 and the diameter of the external lead wire 5. It's okay.

As explained above, according to this invention, by providing a fitting hole for fixing the drawer terminal in the flange part and forming a notch hole formed by expanding this fit-in hole, the flange part of the drawer terminal is It is possible to provide a voltage coil winding frame that is easy to attach and connect external lead wires, and has good assemblability.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing a conventional voltage coil winding frame;
Fig. 2 is an enlarged perspective view of the main part of Fig. 1, Fig. 3 is a perspective view showing a voltage coil winding frame according to an embodiment of this invention, and Fig. 4 is an enlarged perspective view of the main part of the same embodiment. be. 1...Coil body part, 2...Brim part, 3...Output terminal, 4...Insertion hole, 5...External lead wire,
5a...core wire, 6...fitting hole, 7...notch hole.
Note that the same reference numerals in the figures indicate the same or corresponding parts.

Claims (1)

[Scope of utility model registration request] A body part around which a voltage coil is wound, a collar part formed at both ends of this body part, a fitting hole formed in the collar part, and one side of which is fitted into the fitting hole and an L-shaped bent part. an L-shaped draw-out terminal formed with an insertion hole into which a core wire of an external lead wire is inserted; and an L-shaped draw-out terminal formed by expanding the fitting hole in the flange portion opposite to the terminal hole, into which the L-shaped draw-out terminal is inserted. A voltage coil frame is provided with a notch hole formed in a size to facilitate insertion of the tip of the core wire.