JPS61265891A - Wiring tool - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] (Technical field〕 TECHNICAL FIELD The present invention relates to a wiring tool.

(Background Art) Fig. 9 shows a control circuit equipped with four loads and switches, and in this control circuit, a power switch 5t-O
When the N mode is set, power E is supplied to the control unit 11, and power Et- is supplied to the loads H1 to H4 by controlling relay contacts Ry1 to Ry4' as switches. In such a control circuit, the actual connection is the 10th
As shown in the figure, the circuit pattern 12 on the surface of the printed circuit board
There is also a method of connecting the power supply E, each relay 10 to 40, and loads H3 to L' using the circuit pattern 13 on the back side, or a method of forming and printing the circuit pattern 13 only on the back side of the printed circuit board as shown in FIG. A possible method is to use jumper lead wires 14 for wiring on the surface of the substrate.

However, according to the method shown in FIG. 10, it is necessary to use a printed circuit board with circuit patterns 12 and 13 formed on both the front and back surfaces, which increases cost. .13@
The drawback is that the printed circuit board must be made larger. On the other hand, in the method shown in Fig. 11, the printed circuit board can be relatively J type, but on the other hand,
It has drawbacks such as requiring eight jumper lead wires 14 and poor mounting performance.

(Object of the invention) The present invention has been proposed to solve the above-mentioned drawbacks.
The purpose of this is to reduce costs by making it possible to use a printed circuit board with a circuit pattern formed on one side, and to substantially increase the packaging density without increasing the size of the printed circuit board. An object of the present invention is to provide a wiring tool which eliminates the need for jumper lead wires and improves mounting performance.

(Disclosure of the Invention) The present invention will be described below with reference to the drawings. First, FIG. 1 and FIG. This connecting piece 1a is provided with a plurality of leg pieces 1b vertically arranged at equal intervals. Further, the mutual spacing between these leg pieces 1b is set to match the contact spacing of relays 10 to 40, which will be described later, as circuit components mounted on a printed circuit board, and the distance between the tip portions I
The length d of the leg piece 1b excluding ce is, for example, about 3W, and is set so that the connecting piece 1a is slightly lifted from the surface of the printed circuit board when mounted on the printed circuit board. Note that the thickness of the wiring fitting 1 is appropriately selected according to the load capacity.

Next, FIG. 2 shows an insulating duct 2 made of an insulating material such as a synthetic resin molded product.
A plurality of concave grooves 2b are formed so as to accommodate t, and the shape and structure are taken into consideration so that the original creepage distance is 3 mm or more.

FIG. 3 shows a first application example of the present invention, in which two relays are mounted on the surface of a printed circuit board P and placed close to a plurality of relays 10 to 40 as circuit components. The wiring fitting 1 is installed upright, and one end of each relay contact R3'+ to Ry is connected to the tip IC of the wiring fitting 1 via the circuit pattern P1 formed on the back surface of the printed circuit board P. The other ends of the relay contacts R'A to Ry4 are connected to the loads H1 to H4 through the same circuit pattern PI. In addition, in FIG. 3, t+,
h is! In this case, the above-mentioned insulating duct 2 (see Fig. 2) has a concave groove 2b with a 1M connection terminal.
The wiring fitting 1 may be covered with this.

Next, FIGS. 4 and 5 show a second application example of the present invention. That is, in this example, 1! When there are two power supply circuits, four wiring fittings 1 are used which are respectively connected to the connection terminals t and -L of the power supplies A and B. In this example, the unnecessary connecting pieces 1a and leg pieces 1b of each wiring fitting 1 are
By appropriately cutting off the wiring fitting 1, insulation can be further ensured, and each of the divided parts can be arranged to be connected to, for example, the connection terminals t and +Lt. This allows the wiring fitting 1 to be used without waste. Note that the other configurations are the same as the example shown in FIG. 3, so detailed description will be omitted.

6 and 7 are application examples in which the insulating duct 2 is used, and by standing a plurality of wiring fittings 1 close to each other as shown in FIGS. 4 and 5, the wiring fittings 1 can be connected to each other. For example, when the distance between the insulating ducts 2 is 2.5 square meters or less, covering the insulating duct 2 in this way is extremely effective as an insulation measure.Furthermore, FIG. 8 shows another embodiment of the present invention. When the wiring pattern is uniformly determined as shown in Figures 4 to 7, the wiring fitting 1 and the insulating duct 2 are integrally molded in advance. It is possible to further improve performance.

(Effects of the Invention) As described above, according to the present invention, there is provided a printed circuit board on which a circuit component is mounted on one surface thereof, and a printed circuit board that is erected on the one surface of the printed circuit board via a plurality of leg pieces. Completely equipped with a wiring fitting, one end of the wiring fitting is connected to a power source, and the circuit component is connected to the leg piece and the load via a circuit pattern formed on the other side of the printed circuit board. It is possible to connect circuit components such as strips mounted on the surface of a printed circuit board to a power source and load by connecting them to metal fittings also erected on the surface and circuit patterns formed on the back surface of the printed circuit board. This has the effect of reducing the cost of the printed circuit board itself (as compared to the conventional example (see FIG. 10)) by making it possible to use a printed circuit board with a GL circuit pattern formed on only one side.

In addition, since three-dimensional connections are made using wiring fittings, it is possible to increase the mounting density in a flat space even on a small printed circuit board, and furthermore, the jumper lead M' Since this is not necessary, it is possible to dramatically improve the ease of implementation.

In addition, if an insulating duct is used as necessary, there are advantages such as ensuring insulation even in high-density wiring.

[Brief explanation of the drawing]

Figure 1 (A) is a front view of the wiring fitting, Figure 2 (B) is a side view, Figure 2 @) is a plan view of the insulating duct, and Figure 2 (O, ) is a plan view of the insulating duct.
is a side view, FIG. 3 is a plan view showing a tenth application example of the present invention, FIG. 4 is a plan view showing a second application example, FIG. 5 is a front view of FIG. 4, and FIG. is a plan view showing the third application example of the present invention, FIG. 7 is a front view, and FIG. 8 is a plan view of the main part, and FIG.
(b) is a front view, (c) is a side view, FIG. 9 is an explanatory diagram of a control circuit, and FIGS. 10 and 11 are explanatory diagrams of a conventional wiring method. 1... Wiring fittings, 1b... Leg pieces, 1
0.20.30°...Relay as a circuit component% HI I L I H31 mountain...Load,
P...Printed circuit board, P...Circuit pattern

Claims (2)

[Claims] (1) A printed circuit board on which circuit components are mounted on one surface, and a wiring fitting that is erected on the one surface of the printed circuit board via a plurality of legs, and one end of the wiring fitting is connected to a power source. and the circuit component is connected to the leg piece and the load via a circuit pattern formed on the other surface of the printed circuit board. (2) The wiring fitting according to claim 1, wherein a plurality of wiring fittings arranged in parallel are covered with an insulating duct.