JPH0543444Y2 - - Google Patents

Description

[Detailed description of the invention] "Field of industrial application" This invention relates to a high frequency coil used in radio receivers and the like.

"Prior Art" When automatically inserting components onto a printed circuit board, it is common to connect the components in a chain by taping in advance, and then attach the chained components to an automatic insertion machine. FIG. 3A shows a conventional taped high frequency coil. A coil 2 is attached to a substrate 1, and both are housed and held in a shield case 3. One end of each of a plurality of terminal pins 4 and a pair of longer terminal pins 5 for taping is planted on the substrate 1 and led out to the outside, and the lead wire of the coil 2 is placed near the base of each of the long and short terminal pins, for example. Connected by soldering. The other end of the taping terminal pin 5 is fixed to the tape 7 with a presser tape 6. The tape 7 has feed holes 8 formed at equal intervals. A pair of lugs 9 are formed to protrude downward from the lower edge of the shield case 3, which can be used when attaching the high frequency coil to a printed circuit board.

Fig. 3B shows another conventional high-frequency coil, and Fig. 3A shows that one end of the taping terminal pin 5 is attached to the lug 9 of the shield case.
This is different from the example.

``Problem to be solved by the invention'' In the conventional example shown in FIG. There was a risk that the lead wire of the coil connected to the base of pin 5 would be disconnected.

Further, in the conventional example shown in FIG. 3B, there is a large variation in the spacing between the cut terminal pins 5 for taping, which causes the disadvantage that it is difficult to insert them into the printed circuit board.

This is because the thickness of the shield case 3 is thin, so when inserting the board 1 into the case, the case 3
The opening of the case 3 and the lug 9 are widened, and the case 3 and the lug 9 are widened.
This is because there will be some stickiness.

The purpose of this invention is to provide a high-frequency coil that is free from the risk of breaking the lead wire of the coil and has small variations in the distance between the taping terminals.

"Means for Solving the Problem" In the high-frequency coil of this invention, each end of a pair of taping-dedicated terminal pins, which are longer than other terminal pins and are not connected to the coil lead wire, is planted on the board. A pair of lugs are integrally provided to protrude from the edge of the shield case so as to face the taping-dedicated terminal pins. Note that slits are formed at the tips of these lugs. The lugs are bent so that the slits are fitted into the opposing taping-only terminal pins, so that the other ends of the taping-only terminal pins can be fixed to the tape.

"Embodiment" An embodiment of this invention is shown in FIGS. 1 and 2, and parts corresponding to those in FIG. 3 are denoted by the same reference numerals, and repeated explanation will be omitted. In this invention, the lead wire of the coil 2 is not connected, and each one end of a pair of taping-only terminal pins 5', which are longer than the other terminal pins 4, is planted on the board 1 and led out to the outside. The end is configured so that it can be fixed to a tape 7 with a presser tape 6.

Further, as shown in FIG. 2, a slit 9a is provided in the lug 9 of the shield case, and the lug 9 is bent toward the lower surface of the board 1 so that the terminal pin 5' exclusively for taping is located within the slit 9a. Note that the terminal pin 5' may be soldered to the lug 9.

In the above description, the shape of the terminal pin 5' exclusively for taping may be round or square.

``Effect of the invention'' According to this invention, the coil lead wire is not connected to the taping-only terminal pin 5', so when cutting the terminal pin 5', unlike the conventional example shown in FIG. There is no risk of breaking the wire.

In addition, since the terminal pin 5' exclusively for taping is planted on the board 1 and is further fitted and held in the slit 9a of the lug, it is planted on the board as shown in Fig. 3A, and the coil lead wire is attached to the base of the terminal pin 5'. Unlike the case where the pin is soldered or fixed to the shield case 3 which tends to become sticky as in the conventional example shown in FIG. 3B, it is easy to reduce the variation in the pin spacing.
It is not difficult to insert it into a printed circuit board due to variations.

[Brief explanation of the drawing]

Figures 1A and B are front and bottom views respectively showing an embodiment of this invention, Figure 2 is a bottom view showing an enlarged main part of the embodiment of Figure 1, and Figures 3A and B.
1A and 1B are a perspective view and a front view, respectively, showing first and second examples of conventional high-frequency coils.

Claims (1)

[Claims for Utility Model Registration] A high-frequency coil in which a coil is attached to a board, the coil and the board are housed and held in a shield case, and terminal pins are led out from the board, connected to the lead wire of the coil. One end of each of a pair of taping-only terminal pins, which are longer than other terminal pins without being attached, is planted on the board, and a pair of lugs are inserted from the edge of the shield case so as to face the taping-only terminal pins. are integrally protruded, and slits are formed at the tips of the lugs, and when the lugs are bent, the slits are fitted into the opposing terminal pins exclusively for taping, and each of the terminal pins exclusively for taping is fitted. A high-frequency coil whose ends can be fixed to tape.