JPH0438481Y2 - - Google Patents

Description

[Detailed explanation of the idea] (b) Industrial application fields This invention relates to a mounting structure for a printed circuit board.

(b) Conventional technology Conventionally, a variable resistor is attached to a chassis, etc.
For example, a structure as shown in FIG. 2 has been provided in which the resistor output terminal of the variable resistor is assembled by directly soldering to a printed circuit board.

FIG. 2A is a front view when the variable resistor is attached to the chassis via a holding fitting and the resistor output terminal of the variable resistor is soldered to a printed circuit board, and FIG. 2B is a side view.

In the figure, 2 is a chassis, 3 is a variable resistor, 4 is a nut for attaching the variable resistor 3, and 5 is a variable resistor 3.
6 is a screw for attaching the printed circuit board 5 to the chassis 2, and 10 is a holding fitting for holding the variable resistor 3.

The variable resistor 3 has a double structure 3a, 3b in FIG.
Although this is a variable resistor, it may be a variable resistor of other structures such as a single structure or a double structure.

The variable resistor 3 is attached to the holding fitting 10 and the chassis 2 by firmly tightening it with a nut 4.

The holding bracket 10 has a claw 1 for adjusting the mounting position.
0a is formed on both left and right sides. Furthermore, this pawl 10a also serves as a rotation stopper when the variable resistor 3 is tightened with the nut 4.

The pawls 10a provided on the left and right sides are inserted into fixing holes 2a provided in the chassis 2 for mounting position alignment, and assembled.

The variable resistor 3 positioned and attached in this way has its resistor output terminal 3c outputted from the double structure resistors 3a and 3b directly inserted into the hole of the determined printed pattern on the printed circuit board 5, and is printed. It can be attached by soldering on the pattern.

Further, since many electronic components (not shown) are mounted on the printed circuit board 5, the periphery of the printed circuit board 5 is fixed to the chassis 2 with screws 6.

(c) Problems to be solved by the invention However, in the conventional mounting structure of the variable resistor and the printed circuit board described above, the resistor output terminal of the variable resistor is directly soldered to the printed circuit board, and this printed circuit board is mounted on the chassis. Since it is attached by screwing it to the holder, there is a drawback that it requires assembly man-hours for screwing, which increases costs.

Furthermore, if there is an error in the mounting hole dimensions between the chassis and the printed circuit board, if you forcibly tighten the screws, the resistor output terminal is soldered to the printed circuit board, so the printed circuit board will crack and be damaged. There were also drawbacks.

This invention was made in view of the above points, and its purpose is to eliminate the drawbacks of the conventional example and to create a support part formed by bending the lower part of the variable resistance wooden holding bracket, and a chassis. The purpose of the present invention is to provide a structure in which the printed circuit board is attached by fitting the end of the printed circuit board between the two.

(d) Means for solving the problem The printed circuit board mounting structure of this invention is a printed circuit board mounting structure in which a variable resistor is mounted on a chassis via a holding fitting, and the resistor output terminal of this variable resistor is directly wired. In the present invention, a supporting part is provided by bending the holding fitting into a substantially L-shape, and a printed circuit board is fitted between the supporting part and the chassis.

(e) Function: Fix the variable resistor to the chassis with a nut through the holding bracket that determines the mounting position of the variable resistor, and solder the resistor output terminal of this variable resistor directly onto the pattern on the printed circuit board. Set up

The lower part of this holding metal fitting is bent toward the inside of the casing, and this holding metal fitting is formed into a substantially L shape, and a supporting part for supporting the printed circuit board is provided, and the supporting part of this holding metal fitting and the chassis are connected. This is a printed circuit board mounting structure in which the printed circuit board is fitted in between.

(F) Embodiment An embodiment of the printed circuit board mounting structure of this invention is shown in FIG. 1, with FIG. 1A being a front view and FIG. 1B being a side view.

Note that the same parts as in the conventional example are given the same reference numerals, and the explanation thereof will be omitted.

The variable resistor 3 is connected to the chassis 2 via the holding fitting 1.
This mounting position is the claw 1 of the holding bracket 1.
a into the stopper hole 2a of the chassis 2 to position it. Furthermore, this pawl 1a serves as a rotation stopper when the nut 4 is tightened.

The lower part of this holding fitting 1 is bent into a substantially L shape to form a support part 1b.

An end 5a of the printed circuit board 5 is placed between the support part 1b of the holding fitting 1 and the bent part 2b of the chassis.
is fitted, and the printed circuit board 5 is attached.

On the other hand, the resistor output terminals 3c drawn out from the resistors 3a and 3b of the variable resistor 3 are directly inserted into predetermined holes on the pattern of the printed circuit board 5, and are soldered to fix the printed circuit board 5. ing.

That is, the printed circuit board 5 has a structure in which the resistor output terminal 3c is soldered and fixed, and at the same time it is fitted and attached between the support part 1b of the holding fitting 1 and the bent part 2b of the chassis 2.
A printed circuit board 5 and a variable resistor 3 are simply and safely attached to a chassis 2.

The mounting structure of the variable resistor 3 and the printed circuit board 5 has been described above, but the present invention is also applicable to the mounting structure of various regulators such as rotary switches and push switches in addition to the variable resistor and the printed circuit board.

(g) Effects of the invention According to the printed circuit board mounting structure according to this invention, the printed circuit board is fitted and fixed between the support part of the holding fitting and the chassis without using screws as described above. There is no need to assemble screws, which has the effect of improving productivity and reducing costs.

In addition, it has excellent features such as a simple structure, an inexpensive structure, and easy implementation.

[Brief explanation of the drawing]

Figure 1 shows an embodiment of the printed circuit board mounting structure according to this invention, and Figure 1A is a front view;
FIG. 1B is a side view. FIG. 2 shows a conventional mounting structure for a printed circuit board, with FIG. 2A being a front view and FIG. 2B being a side view. Explanation of main numbers, 1...Holding bracket, 1a...
Claw, 1b... Support part, 2... Chassis, 2a...
Stopper hole, 3... Variable resistor, 4... Nut, 5...
...Printed circuit board, 5a...end of printed circuit board,
6...Screw.

Claims (1)

[Claim for Utility Model Registration] In a printed circuit board mounting structure in which a variable resistor is attached to a chassis via a holding metal fitting, and the resistor output terminal of the variable resistor is directly wired, the holding metal fitting is bent into a substantially L-shape. 1. A mounting structure for a printed circuit board, characterized in that a support section is provided, and the printed circuit board is fitted between the support section and the chassis.