JPS6033628Y2 - Terminal mounting structure in μ tuner - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a terminal mounting structure in a μ tuner.

A μ tuner has multiple coils for antenna, local oscillation, high frequency amplification, etc. fixed to a frame, etc., and these coils are connected to other electrical circuit components as part of the tuned circuit to form a μ tuned circuit. It is something to do.

Therefore, each coil fixed to the frame needs to be electrically led out to the outside via a terminal member.

Figures 1 and 2 show conventional examples of the above-mentioned terminal structure, in which a terminal board 2 to which a coil bobbin 1 is fixed is attached to a terminal member 3 bent in a double-shape shape.
are inserted and fixed, the terminal pieces 3a and 3b are protruded from both sides of the terminal board 2, and the lead wire 4' from the coil 4 and the external lead wire 5 are connected to each of these terminal pieces 3a and 3b by soldering. It was something that I did.

However, in the above terminal structure, since the terminal piece 3b also protrudes from the back side of the terminal board 2, μ
It has been difficult to miniaturize the tuner, that is, to make the depth of the μ tuner as small as possible.

Further, in order to insert and fix the terminal member 3 into the terminal board 2, a cut-and-raised portion 6 is provided on the terminal member 3, and the cut-and-raised portion 6 is used to insert and fix the terminal member into the terminal board 2.

This has the disadvantage of increasing the number of man-hours.

The present invention is intended to provide a terminal mounting structure in a μ tuner that can solve the above-mentioned technical problems.

Hereinafter, the present invention will be explained in detail based on the embodiments shown in the drawings.

In FIGS. 3 and 4, the same parts as in the conventional example shown in FIGS. 1 and 2 are designated by the same reference numerals.

As shown in FIG. 3, first, two elongated holes 7, 7 are bored substantially parallel to each other in the terminal board 2 for fixing the coil bobbin.

On the other hand, the terminal member 8 is formed of an elastic plate-like material into a substantially U-shape, and the distance Y between the opening ends of the opposing insertion pieces 8a and 8b in this U-shaped member is set to the elongated hole 8.
, 7 is formed to be slightly larger than the interval Y' between them.

Thus, the insertion pieces 8a and 8b are formed so as to generate elasticity between them.

Next, insert the terminal member 8 into its insertion piece 8a,
The insertion pieces 8a and 8b are press-inserted into the respective elongated holes 7 and 7 while being pressed and deformed so as to narrow the gap between Bb, and the terminal member 8 is inserted into the insertion piece 8a as shown in FIG.
, 8b to fix it using the elasticity between them.

At this time, the terminal member 8 is pressed and inserted to a position where the back side of the terminal board 2 is almost in contact with the back side of the terminal board 2.

With the mounting structure as described above, the protrusion length of the terminal member 8 on the back side of the terminal board 2 can be made as small as possible.

After insertion and fixation as described above, the lead wire 4' from the coil 4 is connected by soldering to the protrusion of the insertion piece 8a toward the coil arrangement side.

Incidentally, a small hole 9 for connecting the external lead wire 5 is bored in the back side of the terminal member 8.

After the tip of the external lead wire 5 is inserted into the small hole 9 in advance, the terminal member 8 is inserted as described above.
are pressed into the long holes 7, 7.

In this way, the terminal member 8 can be inserted and fixed into the terminal board 2, and at the same time, the tip of the external lead wire 5 can be temporarily fixed to the terminal member 8, and the workability of subsequent soldering can be further improved. can.

In addition, as shown in FIG. 3, in the above-mentioned embodiment, the insertion piece 8a in the terminal member 8.

In order to provide elasticity between the pieces 8b, both pieces 8a, 8
b was formed so that the gap between the open ends was larger than the gap between the circumferential holes 7, 7, but conversely, the gap between the open ends of the circumferential holes 7, 7
They may be formed to be slightly smaller than the spacing between them.

As detailed above, according to the present invention, two elongated holes are bored approximately parallel to each other on the terminal board side;
The terminal member is formed into a substantially U-shape, and elasticity is provided between the opposing insertion pieces of the U-shaped forming body, and the U-shaped terminal member is pressed and inserted from the back side of the terminal board. Since the terminal member is fixed to the rear side of the terminal board, there is almost no protrusion of the terminal member, and the depth dimension of the μ tuner is made as small as possible. Demonstrates extremely excellent effects.

In addition, the terminal member can be fixed to the terminal board by simply bending the plate-like member into a U-shape and pressing it into the terminal board, making it extremely easy to work. It is also effective.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing a conventional mounting structure, FIG. 2 is a sectional view taken along line A-A of the same, and FIG. 3 is an exploded perspective view showing a terminal mounting structure in a μ tuner according to an embodiment of the present invention. Fourth
The figure is a longitudinal cross-sectional view showing the attached state of the same as above. 1: Coil bobbin, 2: Terminal board, 4: Coil, 4': Lead wire from coil, 5: External lead wire, 7: Long hole, 8: Terminal member, 8a, 8b: Insertion piece, 9:
Small hole.

Claims (1)

[Scope of utility model registration request] Two elongated holes are bored almost parallel to each other in the terminal board to which the coil bobbin is fixed, and a terminal member is formed in a cylindrical shape and has elasticity between opposing insertion pieces. The board is press-inserted into the elongated hole from the back side of the board and fixed, and the lead-out wire from the coil is connected to the protruding part of the insertion piece from the terminal board, and the external wire is connected to the terminal member on the back side of the terminal board. A terminal mounting structure in a μ tuner characterized by connecting a lead wire.