JPH0238461Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to an improvement of a relay card in which a plurality of relays are arranged on a printed circuit board.

Conventionally, there has been a card of this type as shown in FIG.

In the figure, 1 is a printed circuit board, and 2 and 3 are terminal blocks for contact output, which are arranged at the upper and lower ends of the printed circuit board 1, respectively. Reference numeral 4 denotes a multi-pole connector for coil input, which is disposed at one side end (in this example, the left end) of the printed circuit board 1. 6 to 11 are each relay coil R
A miniature relay having numbers 1 to R6, which is disposed on the printed circuit board 1 and connected to the printed circuit board 1.
The terminal blocks 2 and 3 are electrically connected to the terminal blocks 2 and 3 and the multi-pole connector 4 by pattern printing.

In this relay card, when a predetermined relay coil (any one of R1 to R6) among the miniature relays 6 to 11 is energized by input from the multi-pole connector 4, the contacts of this energized relay are activated. The signal is then output to either terminal block 2 or 3.

Figure 2 shows the case where two of the above relay cards are mounted on the control panel, and the number of relays is 1.
If more relay cards are required than the number provided on one relay card, a plurality of relay cards are used as appropriate. Generally, this relay card is attached to the inner surface of the door 12, etc., in order to effectively utilize the space of the control panel. Note that 13 is a hinge of the door 12, and 14 and 15 are a wiring group consisting of a plurality of connection wires connected to the multipolar connector 4 of this relay card.

By the way, in the conventional relay card, the multi-pole connector 4 is arranged on one side of the printed circuit board 1, for example, on the left side, so the hinge 13 of the door 12 to which this relay card is attached is arranged on the right side when viewed from the inside of the door. If the wires 14 and 15 are routed to the right side, which is the open side of the door 12, the wires 14 and 15 must be detoured and pulled out, and it is extremely complicated to perform this wiring work in a narrow space such as a control panel. However, there was a drawback that work efficiency was reduced accordingly.

This idea was made to eliminate the above-mentioned drawbacks of the conventional method. Two multi-pole connectors with electrical connections between the connectors are placed on both sides of the printed circuit board, making wiring work easier. The purpose of the present invention is to provide a relay card that can improve work efficiency by wiring using a connector that can be used.

An embodiment of this invention will be described below with reference to FIGS. 3 and 4.

In these figures, the same reference numerals as those in FIGS. 1 and 2 indicate the same or corresponding parts, so a description thereof will be omitted.

4 and 16 are the desired number (in this embodiment) of the number of connectors (10 in this embodiment) required for inputting coils R1 to R6 of relays 6 to 11 arranged on one printed circuit board 1. The multi-pole connectors have the same configuration and have an increased number of connectors (10 in this case), and are arranged at both ends of a side of the printed circuit board 1 that is different from the side where the terminal blocks 2 and 3 are provided.

Further, the multipolar connectors 4 and 16 are electrically connected by electrically connecting each connector with a straight signal line. Also relay 6~8
Coils R1 to R3 and coils R of relays 9 to 11
4 to R6 are respectively arranged via the above signal lines, and among the above signal lines, the signal lines closer to the relay except for the central signal line are electrically connected to the coils R1 to R6. At the same time, the remaining signal lines (the central signal line) are electrically connected to the coils R1 to R6 so that they can be used for relay coil input of other relay cards, control supply to other electrical equipment, etc. Not yet.

Furthermore, this relay card has a predetermined coil R.
Signal lines are also drawn out to the terminal blocks 2 and 3 so that signals can be input and output from the terminal blocks 2 and 3 without inputting and outputting signals from the multi-pole connectors 4 and 16 to 1 to R5. Connect the signal to multi-pole connector 4 or 16
Input from the [or terminal block 2, 3] side and coil R1~
A signal line is electrically connected so that it can be output to the terminal block 2 or 3 [multipolar connector 4 or 16] via R6.

Note that the signal line is formed by pattern printing.

Note that the signal line is formed by pattern printing.

In the relay card configured in this way, the wiring group 15 is connected by connecting the two multi-pole connectors 4 and 1.
6, the one on the side that is easier to connect may be used as appropriate.

For example, as shown in FIG. 4, when two relay cards are attached to a door 12 of a control panel, etc., the multi-pole connectors 4, 4 on one side of each relay card are connected to the wire group 17 with connectors. By connecting the relay cards, the relay cards are connected.
It is sufficient to draw out the wiring group 15 from only one arbitrary multipolar connector 16.

In addition, this relay card can use signal lines that are not electrically connected to the coils R1 to R6 as signal lines for inputting relay coils of other relay cards, supplying control signals to other electrical equipment, etc. In addition, signals can be input and output from only the terminals 2 and 3 side to the coils R1 to R6, and signals can be input from the multi-pole connector 4 or 16 [or terminal blocks 2 and 3] side and sent via the coils R1 to R6. Terminal block 2 or 3
[or the multi-polar connector 4 or 16] side, which means that highly flexible wiring can be performed.

Furthermore, this relay card includes terminal blocks 2, 3, coils R1 to R6, and multipole connectors 16A, 16B.
Since the relay card is arranged as described above, it is possible to use the entire surface of the printed circuit board 1, and the degree of integration of the relay card is improved.

As described above, according to this invention, a plurality of relays, a multi-pole connector for the coil input of the relays, and a terminal for the contact output of the relays are arranged on a printed circuit board in a single relay card. Multi-pole connectors with the same configuration, each having a desired number of connectors greater than the number of connectors for the coil input of the relay arranged on the printed circuit board, are arranged on both ends of the printed circuit board, and the multi-pole connectors are connected to the signal line. electrically connecting the connectors, disposing the plurality of relays on the sides of these signal lines, and electrically connecting the signal line closer to the relay among the signal lines with the coil of the relay, In addition, since the contact output terminal of the relay is placed on a different side from the side where the multi-pole connector is placed, the connection work to the multi-pole connector of the wiring group can be selected depending on the difficulty of the work. In addition, the signal line not connected to the relay coil can be used as a signal line for relay coil input of other relay cards, control signal supply to other electrical equipment, etc. Furthermore, it becomes possible to perform wiring with high flexibility, and furthermore, it is possible to obtain a relay card with a good degree of integration.

[Brief explanation of the drawing]

Figures 1 and 2 are for explaining conventional examples, respectively. Figure 1 is a front view of a relay card, Figure 2 is a front view showing two relay cards attached to the inner surface of the door, Figures 3 and 4 are for explaining one embodiment of this invention, respectively. Figure 3 is a front view of the relay card, and Figure 4 shows the state in which two relay cards are attached to the inside of the door. FIG. In the figures, the same symbols indicate the same or equivalent parts, 1 is a printed circuit board, 2, 3 are terminals, 4, 1
6 is a multi-pole connector, 6 to 11 are miniature relays, 12 is a door, 15 is a wiring group, and 17 is an electric wire group.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) A relay card in which a plurality of relays, a multi-pole connector for the coil input of the relays, and a terminal for the contact output of the relays are arranged on a printed circuit board, Multi-pole connectors with the same configuration, each having a desired number of connectors greater than the number of connectors for relay coil input arranged on a single printed circuit board, are arranged at both ends of the printed circuit board, and multiple signal lines are connected to each other. electrically connecting the polar connectors, arranging the plurality of relays on the sides of these signal lines, and electrically connecting the signal line closer to the relay among the signal lines with the coil of the relay, and a relay card in which a contact output terminal of the relay is arranged on a side different from the side on which the multi-pole connector is arranged. (2) The relay card according to claim 1, wherein the multi-pole connectors are connected by pattern printing on a printed circuit board.