JPS5818300Y2 - Printed circuit board mounting device for tuner - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a structure for attaching a printed circuit board to the top surface of a tuner, and provides an apparatus that can be attached easily and accurately.

In tuners used in television receivers,
A printed circuit board incorporating peripheral circuits is auxiliary attached to the outer surface of the metal case.

Now, such a conventional mounting device will be explained with reference to FIGS. 1 to 3.

First, in the one shown in FIG. 1, a printed circuit board 3 is attached to a metal case 2 of a tuner 1 with screws 4.

However, in this case, the screws must be tightened, which makes assembly troublesome, and if the screws are tightened too much, the printed circuit board 3 may break or otherwise be damaged.

In the case shown in FIGS. 2 and 3, pins 5 are implanted on the upper surface of the metal case 2, and the printed circuit board 3 is fitted onto the pins 5 and attached by soldering with solder 6.

However, in this case as well, the printed circuit board 3 tends to move or come off easily during or before soldering, making it difficult to mount it accurately, and it is inconvenient to hold it down by hand to prevent it from moving.

SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide a device that can overcome these conventional drawbacks and easily and accurately attach a printed circuit board to a tuner.

Hereinafter, one embodiment of the present invention will be described in detail with reference to FIGS. 4 to 6.

In this device, a pin 9 is implanted on the top surface of the metal case 8 of the tuner 7, and a clamping piece 10 whose tip end faces the top surface of the metal case 9 is provided.

Here, since a protrusion 11 is provided on the upper surface side of the metal case 8, a part of this protrusion 11 is cut and raised to form the holding piece 10.

Further, it is convenient if the tip of the clamping piece 10 projects slightly from the edge of the metal case 8, and the tip is slightly curved upward.

On the other hand, a hole 13 into which the pin 9 fits is provided in the printed circuit board 12.

The diameter of this hole 13 is formed to be somewhat larger than the diameter of the pin 9 so that the printed circuit board 12 can move somewhat even when the pin 9 is fitted into the hole 13.

When attaching the printed circuit board 12 to the metal case 8, first, as shown by the broken line arrow in FIG.
The printed circuit board 12 is temporarily fixed by press-fitting the hole 13 between the pin 9 and the pin 9 as shown in FIG.

At this time, since the printed circuit board 12 is held down by the clamping piece 10, the printed circuit board 12 can be easily moved and held at an accurate position.

Thereafter, as shown in FIGS. 6 and 7, the pin 9 and the clamping piece 10 are soldered to the printed circuit board 12 using solder 14.
Complete the installation.

In this way, in this device, the printed circuit board 12 is held by the holding pieces 10 so that it does not move, so it can be easily installed by temporarily fixing the printed circuit board 12 and soldering it. Since the printed circuit board 12 does not move during installation, there is no need to hold it by hand and the mounting can be carried out with good workability.

In addition, in the above embodiment, the holding piece 10 is connected to the protrusion 11.
Although the metal case 8 is provided by being cut and raised directly from the upper surface thereof, it goes without saying that it may be cut and raised directly from the upper surface of the metal case 8.

As detailed above, according to the present invention, the printed circuit board is mounted by providing pins and clamping pieces on the top surface of the tuner metal case, making it easy to mount the printed circuit board in an accurate position with good workability. It has great practical effects.

[Brief explanation of drawings]

1, 2 and 3 are perspective views of a conventional apparatus for attaching a printed circuit board to a tuner, and FIGS. 4 and 5 are perspective views of an apparatus for attaching a printed circuit board to a tuner according to an embodiment of the present invention. , FIG. 6 is a plan view of the same device, and FIG. 7 is a side view of the same device. 7...Tuner, 8...Metal case,
9... pin, 10... clamping piece, 12...
...Printed circuit board, 13...hole, 14.
·····solder.

Claims (1)

[Scope of utility model registration request] A tuner having a metal case, and a printed circuit board attached to the top surface of the metal case of the tuner, and a pin fitted to a hole in the printed circuit board and soldered to the printed circuit board on the top surface of the metal case; A device for attaching a printed circuit board to a tuner, the device comprising: a clamping piece that faces the upper surface of the metal case and clamps the printed circuit board between the metal case and is soldered to the printed circuit board.