JPH0773913A - Terminal block and control device - Google Patents

Abstract

PURPOSE:To provide a terminal block capable of connection in plural with one terminal and moreover the labor saving for connection work, and control device utilizing the terminal block. CONSTITUTION:A screw type terminal 1 performing connection by a screw and a spring type terminal 2 performing connection by a spring are conducted by a conductive plate 3, and the screw type terminal 1 is utilized when connection in plural is needed to one terminal. The spring type terminal 2 is utilized when a piece of connection is made to one terminal, and both of the screw type terminal 1 connected by the conductive plate 3 and the spring type terminal 2 are utilized when connection more than one is made. Since many pieces of connection can be housed in a terminal block by constituting a control device of the terminal block having the above constitution, a relay unit on which plural relays to be connected to the terminal block are mounted, and a control unit for controlling the action order and time of the respective relays, flexible coping with the expansion of a control object can be realized.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a terminal block used for various control devices and the like, and a control device using this terminal block.

[0002]

2. Description of the Related Art In various control devices, for example, traffic signal control devices at intersections, cables from signal lights provided in respective traveling directions are collectively connected to a terminal block, and each signal light is connected to a solid state relay ( Less than,
Abbreviated as SSR. ) And the microprocessor controls the lighting in order.

A conventional terminal block used in a control device of this type is constructed such that a crimp terminal attached to the tip of a cable is clamped by a conductive plate and a washer and a screw is tightened for connection. Also, regardless of the screw,
A spring-type terminal block is also known in which the tip of the cable is held by a spring.

[0004]

In the screw type terminal block,
Since it is easy to connect multiple crimp terminals to one screw terminal, for example, you can connect the cable and connect and fix the arrester at the same time, but you must turn the screw with a screwdriver. There was a problem that it was not possible to save labor. On the other hand, in the spring type terminal block, it is not necessary to attach a crimping terminal to the cable, and the wire can be connected simply by pressing the spring with the tip of the tool and inserting the tip of the cable. Since it is not possible to connect a plurality of wires to one spring terminal, there is a problem that, for example, the wire connection of the cable and the connection and fixing of the arrester cannot be attached to the same terminal.

The present invention solves such a conventional problem, and a terminal block capable of connecting a plurality of wires to one terminal and capable of saving the labor of the wiring work, and a control using the same. The purpose is to provide a device.

[0006]

In order to achieve the above object, the terminal block according to the present invention has a conductive plate for connecting a screw type terminal for connecting with a screw and a spring type terminal for connecting with a spring. Is.

Further, the control device according to the present invention comprises the terminal block having the above structure, an SSR unit having a plurality of SSRs connected to the terminal block mounted thereon, and a control unit for controlling the operation sequence and time of each SSR. It is a thing.

[0008]

According to the present invention, therefore, a screw type terminal is used when one terminal requires a plurality of wirings, and a spring type terminal is used when one wiring is performed for one terminal.
When connecting more wires, it is possible to save a plurality of wires and the work of connecting wires by using both the screw type terminals and the spring type terminals connected by the conductive plate.

Further, according to the present invention, since the terminal block can accommodate many wirings by configuring the control device with the terminal block, the SSR unit, and the control unit having the above-mentioned configuration, it is possible to flexibly cope with the expansion of the controlled object. can do.

[0010]

1 is a plan view of an assembly of a terminal block showing an embodiment of the present invention, FIG. 2 is a front view of the assembly of the terminal block, and FIG. 3 is a basic part constituting an intermediate portion of the terminal block with a lightning arrester attached. A of FIG.
FIG. 4 is a sectional view taken along line A-A, and FIG. 4 is a sectional view taken along line B-B in FIG. 1 in which a lightning arrester is attached to basic parts forming both sides of the terminal block. In these drawings, reference numeral 1 denotes a plurality of screw terminals arranged in rows and connected by screws. Reference numeral 2 denotes a plurality of spring type terminals which are arranged in a row so as to face the screw type terminals 1 and are connected by springs. 3 is a screw type terminal 1 and a spring type terminal 2 facing each other
Is a conductive plate that conducts and. Reference numeral 4 denotes a resin housing in which the screw type terminal 1, the spring type terminal 2 and the conductive plate 3 are integrally molded, and two types shown in FIGS. 3 and 4 are formed. Reference numeral 5 is a tool insertion port for pushing down the spring when connecting to the spring type terminal 2, and 6 is a wire rod insertion port for inserting a wire rod connected to the spring type terminal 2. Reference numeral 7 denotes a bus bar for attaching a lightning arrester or the like to allow a current to flow to the ground, and is fixed to a conductive plate / bus bar fixing metal fitting 9 by a screw 8.
Reference numeral 10 is an end plate that presses both sides of the housing 4 to connect the plurality of housings 4 together to assemble the terminal block, and 11 is a metal fitting for fixing the end plate 10 to the rail 12 with screws 13. The rail 12 is used when connecting and fixing a plurality of terminal blocks assembled in this way. Reference numeral 14 is a lightning arrester mounted between the screw type terminal 1 and the screw 8.

Next, the connection operation in the above embodiment will be described. In the screw type terminal 1, a crimp terminal crimped to the tip of the wire to be connected and a crimp terminal crimped to the arrester 14 are connected to the conductive plate 3 by tightening screws. The spring type terminal 2 is connected to the conductive plate 3 by inserting the tip of the tool into the tool insertion port 5 and pressing the spring to insert the stripped wire into the wire rod insertion port 6 and pulling out the tool. The ground is obtained by connecting a wire to the screw 8 or the spring type terminal 2 at both ends of the terminal block. It is also used as a common terminal.

Next, a schematic configuration of a traffic signal control device having the above terminal block will be described with reference to FIG. In FIG. 5, 21 is a housing, 22 is the above-mentioned terminal block for connecting a signal light, and 23 is an SS for turning the signal light on and off.
The R unit, 24 is a control unit composed of a microprocessor for controlling the lighting sequence and time of the signal lights. The SSR unit 23 is typically shown in FIG.
In the case of a multi-output type traffic signal control device having a large number of signal lights as shown in FIG. 5, it is composed of 5 units as shown in FIG. One unit is configured by arranging about six SSRs in the vertical direction.

In the above traffic signal control device, the signal lights arranged at the respective corners of the intersection are respectively connected to the terminal block 22.
The SSR unit 23, under the control of the control unit 24, turns on the signal lights in a predetermined order for a predetermined time. Since the terminal block 22 can accommodate a large number of wirings as described above, it can be used as it is even if a signal lamp is additionally installed.
It is possible to flexibly cope with the addition of signal lights simply by adding as in (b).

FIG. 6 shows another embodiment of the traffic signal control device having the above terminal block. Reference numeral 31 is a housing, 32 is the above-mentioned terminal block for connecting signal lights, 33 is an SSR unit for turning on and off the signal lights, and 34 is a control unit composed of a microprocessor for controlling the lighting sequence and time of the signal lights. is there. The SSR unit 33 is
As shown in FIG. 6 (a), about 12 SSRs, which are almost equal to the width dimension of the housing 31, are arranged in a row in the lateral direction to form one unit, and normally two units in the vertical direction are arranged.
In the case of a multi-output type traffic signal control device in which units are arranged and the number of signal lights is large, three units are arranged in the vertical direction as shown in FIG. 6 (b).

S in the traffic signal control apparatus shown in FIG.
In the SR unit 23, about 6 SSRs are arranged in the vertical direction to form one unit, whereas the SS in this embodiment is
The R unit 33 has about 12 SSRs arranged in the lateral direction to form one unit, so that even if one unit is added as shown in FIG. 6B, the height dimension of the housing 31 does not have to be so large. There is.

[0016]

As described above, the terminal block according to the present invention is
Since the screw-type terminal for connecting with the screw and the spring-type terminal for connecting with the spring are electrically connected by the conductive plate, 1
Use a screw type terminal when multiple connections are required for one terminal, a spring type terminal when making one connection for one terminal, and a conductive plate when making more connections. By using both the screw-type terminal and the spring-type terminal that are connected, it is possible to save labor for a plurality of wirings and wiring work.

Further, the control device according to the present invention comprises the terminal block having the above-mentioned structure, an SSR unit having a plurality of SSRs connected to the terminal block, and a control unit for controlling the operation sequence and time of each SSR. Since the terminal block can accommodate many wirings, it is possible to flexibly deal with the expansion of control targets.

[Brief description of drawings]

FIG. 1 is an assembly plan view of a terminal block showing an embodiment of the present invention.

FIG. 2 is an assembled front view of the terminal block showing the embodiment of the present invention.

FIG. 3 is a cross-sectional view taken along the line AA of FIG. 1 in which a lightning arrester is attached to a basic component forming an intermediate portion of a terminal block.

FIG. 4 is a cross-sectional view taken along the line BB of FIG. 1 in which a lightning arrester is attached to the basic parts that configure both sides of the terminal block.

FIG. 5 (a) is a schematic front view of a traffic signal control device showing another embodiment of the present invention. (B) A schematic front view of the traffic signal control device after the SSR unit is added.

FIG. 6 (a) is a schematic front view of a traffic signal control device showing still another embodiment of the present invention. (B) A schematic front view of the traffic signal control device after the SSR unit is added.

[Explanation of symbols]

 1 Screw Type Terminal 2 Spring Type Terminal 3 Conductive Plate 4 Housing 5 Tool Insertion Port 6 Wire Rod Insertion Port 7 Bus Bar 8 Screw 9 Conductive Plate / Bus Bar Fixing Metal Fitting 10 End Plate 11 Retaining Metal Fitting 12 Rail 13 Screw 14 Lightning Arrester 21, 31 Housing 22, 32 Terminal block 23, 33 SSR unit 24, 34 Control unit

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor, Kazuyoshi Takayama, Omron Co., Ltd., No. 10, Hanazono Dodo-cho, Ukyo-ku, Kyoto City, Kyoto Prefecture

Claims (3)

[Claims] 1. A terminal block in which a screw-type terminal connected by a screw and a spring-type terminal connected by a spring are electrically connected by a conductive plate. 2. A solid mounting a terminal block in which a conductive terminal connects a screw type terminal connected by a screw and a spring type terminal connected by a spring, and a plurality of solid state relays connected to the terminal block. A control device comprising a state relay unit and a control unit for controlling the operation sequence and time of each solid state relay. 3. The control device according to claim 2, wherein a plurality of solid state relays are arranged in a row in the lateral direction to form one solid state relay unit.