JP2002124783A - Wiring-saving system in control panel - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a wiring saving system in a control panel of high workability for reducing wiring operation, preventing faulty wiring such as inverted connection, and easier routing. SOLUTION: For electrode connection to core wires of an AS-i communication cable 3 and a DC24V auxiliary power line cable 4 fixed and housed by a cable cover 5 in a DIN rail 1 channel, an AS-i connection equipment 6 is provided with a pointed pressure welded pin. The pressure welded pin penetrates the cable cover 5 and the coats of the cables to be pressure welded to the core wire.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wiring saving system in a control panel for reducing the number of wiring operations in the control panel and the wiring routed in the panel.

[0002]

2. Description of the Related Art A conventional control panel will be described. FIG. 6 is a system configuration diagram of a conventional wiring system in a control panel. In a conventional control panel, as shown in FIG. 6B, a DIN (Deutsche Institute
Normenausschuss: German Federal Standard) A rail 50 is arranged on the inner wall 100 of the control panel and DIN rail fixing screws 6
0, and use AS-
The i-connection device 70 is fitted, and as shown in FIG.
The mounting position is determined by sliding the Si connection device 70, and these devices are fixedly arranged on the DIN rail 50.

[0003] The AS-i connection device 70 is an AS-i
Is a generic term for various devices used in open networks of, for example, a 24V DC auxiliary power supply 70a, an AS-
i communication power supply device 70b, master device 70c, slave device 70d, and the like. DC24V auxiliary power supply 70a
Supplies 24 V DC from an auxiliary power supply for operating an output circuit, a load, and other various external control devices connected to the slave device 70d. In FIG. 6, the DC 24 V auxiliary power supply 70a is
c, but not connected to DC2
In some cases, the 4V auxiliary power supply 70a is connected to the master device 70c to supply 24V DC. These are appropriately selected at the time of design.

[0004] The AS-i communication power supply 70b supplies communication power. The master device 70c is a slave device 7
0d is controlled. The slave device 70d transmits and receives data and commands to and from I / O of an external control device outside the panel.
Generally, a slave device disposed outside the control panel employs an IP67-level protection structure having excellent environmental resistance, but a slave device 70d disposed inside the control panel is
A level 20 protection structure is employed, and as shown in FIG. 6, crossover wiring and the like are performed.

[0005] The wire terminals of these AS-i connection devices 70 are connected using an AS-i communication line cable 80 and a DC24V auxiliary power line cable 90. Each of these AS-i
When connected to the connection device 70, the AS-i with polarity
Communication line cable 80 and DC24V auxiliary power line cable 9
0 is wired across the screws provided on the terminal block of each AS-i connection device 70 in the control panel, and then the AS-i
The i communication line cable 80 and the 24V DC auxiliary power line cable 90 are bound and fixed to the inner wall 100. as a result,
A communication system based on the AS-i open network arranged as shown in FIG.

Next, a communication system based on the AS-i open network will be briefly described. This open network called the AS interface realizes bit-level wiring saving. A composite signal is generated by superimposing a communication signal transmitted and received between the master device 70c and the slave device 70d on a power supply voltage supplied from the AS-i communication power supply device 70b. The AS-i communication lines having polarity (AS-i + and AS-i-
Master device 70c and slave device 7
The composite signal is transmitted between 0d. Communication in this case
The power supply voltage is also supplied.

[0007] Note that the DC 24 V auxiliary power line 90
24V DC is supplied from the auxiliary power supply to various external control devices connected to the AS-i connection device 50. As a result, the power supply voltage and the communication signal can be transmitted by the two AS-i communication line cables 80 and the DC 24 V auxiliary power line cable 90, and the communication system realizes reduced wiring.

[0008]

However, in the conventional method, the work of fixing to the DIN rail 50 and the AS-i
Since the work of crossing the communication line cable 80 and the DC24V auxiliary power line cable 90 is required, the number of working steps tends to increase. The AS-i communication line cable 80
In addition, there is a problem that when the wiring work of the DC24V auxiliary power supply cable 90 is performed, the + terminal and the-terminal are erroneously connected in reverse, and the AS-i connection device 70 may malfunction.

Further, in order to extend the AS-i communication line cable 80 outside the panel and to wire the same, the AS-i communication line cable 80 is temporarily relayed to terminals of a terminal block in the panel, and the terminal block is wired. In this case, it is necessary to wire the AS-i communication line cable 80 again to the terminal of (2) and to take it out of the panel, which requires a lot of man-hours. Connecting one AS-i communication line cable 80 to each AS-i connection device 70, and extending the AS-i communication cable 80 outside the board as it is and connecting it to the terminal of the terminal block. There was a request to omit.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to reduce wiring work, prevent wiring mistakes such as reverse connection, and realize ease of wiring, thereby improving workability. To provide a wiring-saving system in a control panel with high reliability.

[0011]

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems. According to a first aspect of the present invention, there is provided a wiring saving system in a control panel comprising: a rail provided with a groove; A cable disposed in the groove, a cable cover that fixes and accommodates the cable in the groove of the rail, and a pointed tip for electrically connecting the core wire of the cable positioned by the cable cover. A connection device having an insulation displacement pin, wherein the connection device is
The cable cover and the cover of the cable may be attached to the rail in a state where the pressure contact pin penetrates through the cable cover and is connected to the core wire by pressure contact.

According to a second aspect of the present invention, there is provided a wiring saving system in a control panel according to the first aspect, wherein the cable cover has a cable recess abutting on the cable. The cable is abutted and fixed in the groove of the rail while determining the position of the cable by contacting the cable with the cable recess.

According to a third aspect of the present invention, there is provided the wiring saving system in the control panel according to the first or second aspect, wherein the rail has a plurality of holes. The cable cover is provided with a hole so as to coincide with the position of the hole provided in the rail, and is fixed integrally by passing a fixing screw through the hole of the cable cover and the hole of the rail.

According to a fourth aspect of the present invention, there is provided a wiring-saving system in a control panel according to any one of the first to third aspects. A first positioning portion that is a convex portion or a concave portion; the connecting device includes a second positioning portion that is a concave portion or a convex portion; and when the connecting device is mounted on the rail, the first positioning portion and the second positioning portion. Thus, the press contact pin penetrates through the cable cover and the covering of the cable while being guided to a position where the press contact pin is press connected to the core wire of the cable.

According to a fifth aspect of the present invention, there is provided a wiring-saving system in a control panel according to any one of the first to fourth aspects. The connecting device is moved by screw feed using a mounting screw for mounting the connecting device on the rail, and the press-connecting pin penetrates the cable cover and the coating of the cable to press-connect the cable core. It is characterized by connecting.

According to a sixth aspect of the present invention, there is provided a wiring-saving system in a control panel according to any one of the first to fourth aspects. After attaching the rail and the connection device,
The press-contact pin is moved by a feeding operation, and the press-contact pin penetrates the cable cover and the coating of the cable, and press-connects to a core wire.

According to a seventh aspect of the present invention, there is provided a wiring-saving system in a control panel according to any one of the first to sixth aspects. An AS-i communication line cable comprising a DIN rail having a hat-shaped cross section and a groove in the center, wherein the cable is a cable covering two core wires, and Auxiliary power line cable 2 covering two cores
And the cable cover includes two cable recesses into which the AS-i communication line cable and the auxiliary power line cable are fitted and positioned, and the connection device includes the AS-i communication line positioned by the cable cover. AS-connector with four crimping pins for connection with a total of four conductors, a wire cable and an auxiliary power cable
i connection device, the cable cover and the AS-
The AS-i connection device is attached to the DIN rail in a state in which the press-contact pins penetrate the coating of the i-communication line cable and the auxiliary power line cable and are connected to the core by pressure.

[0018]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is an explanatory view for explaining a wiring saving system in a control panel according to an embodiment of the present invention. FIG. 1A is a front view of the system, FIG. 1B is a sectional view of a cable, and FIG. ) Is a side view before the cable cover is attached, FIG.
(D) is a side view after a cable cover is attached. FIG. 2 is also an explanatory view for explaining a wiring-saving system in a control panel according to an embodiment of the present invention. FIG. 2A is a side view before AS-i connection device is attached, and FIG. FIG. 4 is a side view after the AS-i connection device is attached.

This system uses an open network based on the AS interface, and as shown in FIG.
Rail fixing screw 2, AS-i communication cable 3, DC
24V auxiliary power cable 4, cable cover 5, AS
-i connection device 6 is provided. There are various types of AS-i connection devices 6, for example, as shown in FIG.
The auxiliary power supply 6a, the AS-i communication power supply 6b, the master 6c, the slave 6d, and the like. The functions and the like of these devices are the same as those of the prior art, and the description thereof will be omitted.

Next, the mounting of these components will be described. First, as shown in FIG. 1B, a DIN rail 1 having a substantially hat shape in cross section and having a groove 1a in the center is disposed on an inner wall 10 in a control panel, and the AS-i communication line cable 3 is further moved upward. Next, a DC 24 V auxiliary power line cable 4 is arranged on the lower side, and as shown in FIGS. 1C and 1D, these AS-
The i-communication line cable 3 and the 24V DC auxiliary power line cable 4 (hereinafter simply referred to as cables 3 and 4) are fixed.

As shown in FIG. 1 (c), the cable cover 5 is provided with a cable recess 5a substantially conforming to the outer shape of the cables 3 and 4, and is fitted into the cable recess 5a. These cables 3
4 is performed. The shape of the cable recess 5a does not need to match the outer shape of the cables 3 and 4, as long as positioning is possible, and this outer shape is appropriately designed. In FIG. 1D, the cables 3 and 4 and the cable recess 5a are not shown to be in contact with each other, but are shown with priority given to the visibility of the figure.
Actually, it is fitted and fixed.

The DIN rail 1 and the cable cover 5 are each provided with a plurality of long holes 7 as shown in FIG. 1 (a), and the pitches of the holes match. Therefore, the DIN rail fixing screw 2 is passed through the long hole 7 with the positions of the long hole 7 of the DIN rail 1 and the cable cover 5 aligned, and fastened and fixed to the screw hole provided in the inner wall 10 of the wall. . When fixed, the state shown in FIG. 1D is obtained, and the positioning of the cables 3 and 4 and the fixed accommodation of the cables 3 and 4 are performed simultaneously.

After the positioning and fixing of the cable are completed, the AS-i connection device 6 is attached. FIG. 2 (b)
As shown in the figure, the AS-i connection device 6 is a DIN rail 1
It is locked and attached to the upper and lower overhangs. In this case, as shown in FIG. 2A, the AS-i connection device 6 is locked by being locked to the lower projecting portion, and the AS-i connection device 6 is positioned.
The press-contact pin 6e of the sharp end of the i-connection device 6 is positioned, and the mounting screw 6f is rotated to send the AS-i connection device 6 to the DIN rail 1 side.

In this case, a strong pressing force is obtained by the axial force of the mounting screw 6f to break the coating of the cable cover 5 and the cables 3 and 4, and the press-contact pins 6e are connected to the cables 3 and 4.
2a (see FIG. 1 (b)), and finally, as shown in FIG. 2 (b), the AS-i connecting device 6 is electrically connected to the DIN rail 1. Installed and fixed. In this case, the positional relationship and the polarity of the press contact pin 6e in the vertical direction are made to match the positional relationship and the polarity of the core wires 3a and 4a of the cables 3 and 4 in advance.
The connection is made at the correct position without any displacement or wrong polarity.

As described above, according to the present embodiment, the connection work is performed at the same time by attaching the AS-i connection device 6 to the DIN rail 1, so that a wiring-saving system with high workability can be provided. In this case, the positional relationship and the polarity of the press contact pin 6e in the vertical direction are determined by the cable 3,
Since the positional relationship and the polarity of the core wire 4 are matched in advance, it is possible to avoid erroneous connection, and to avoid the occurrence of recovery work or the like due to damage or erroneous connection of connected equipment. It is a system with high workability from a viewpoint.
In addition, since the cables 3 and 4 are wired while being fixedly accommodated in the groove 1a of the DIN rail 1, the crossover wiring performed in the conventional technology is unnecessary, and the wiring is reduced.

Next, another embodiment of the AS-i connection device used in the wiring saving system in the control panel of the present invention will be described. FIG. 3 is a structural diagram of another AS-i connection device,
FIG. 3A is a side view before the press contact of the press contact pin, and FIG. 3B is a side view after the press contact of the press contact pin. As shown in FIG. 3A, the AS-i connection device 6 has a mounting groove formed in advance, and is fitted from the side of the DIN rail 1.
The mounting position is determined as appropriate by sliding it sideways.

After determining the mounting position, press-contact pin feed screw 6g
Is used to move the moving portion 6h to which the press contact pin 6e is attached. By rotating the press contact pin feed screw 6g using a driver or the like (not shown), the moving portion 6h and the press contact pin 6e move toward the cable cover in the direction indicated by the arrow A in FIG.

In this case, a strong pressing force is obtained by the axial force of the press-contact pin feed screw 6g, the coating of the cable cover 5 and the cables 3 and 4 is broken, and the press-contact pins 6e are connected to the core wires 3a and 4a of the cables 3 and 4. And finally Figure 3
As shown in (b), the AS-i connection device 6 is electrically connected and attached to the DIN rail 1. In this case, the positional relationship and the polarity of the press contact pin 6e in the vertical direction are made to match the positional relationship and the polarity of the core wires 3a and 4a of the cables 3 and 4 in advance, so that the positional displacement and the wrong polarity do not occur. Connected in the correct position.
Before the press-contact pin 6e of the AS-i connection device 6 is pressed, the sharp press-contact pin 6e is housed inside the AS-i connection device 6. Thereby, a situation in which the worker accidentally pierces the press contact pin 6e and is injured can be avoided, and work safety can be improved. Further, since the positioning can be easily performed, the convenience is high.

Next, another embodiment of the AS-i connection device used in the wiring saving system in the control panel of the present invention will be described. FIGS. 4A and 4B are explanatory views for explaining the press-contact positioning mechanism, and FIGS. 4A and 4B show various forms.
In the AS-i connection device 6 shown in FIG. 4A, the cable cover 5 is provided with a protrusion 5 b such as a protrusion which is an example of the first positioning portion of the present invention, and the cable cover 5 is provided on the body of the AS-i connection device 6. This is an example of the second positioning portion of the present invention, in which concave portions 6i such as dents are provided, and these are fitted together to improve positioning accuracy.

The convex portion 5b and the concave portion 6i can have various shapes (for example, the concave portion 6i is a groove, and the convex portion 5b is a columnar protrusion), and the shapes are appropriately designed and selected. Although not shown, the concave portion and the convex portion are exchanged, and a concave portion such as a concave
-A projection such as a projection may be provided on the i-connection device 6. In this case, a concave portion such as a depression can be substituted by the elongated hole 7. Further, in FIG. 4A, the projections formed by the two projections as viewed from the side are provided, but one projection or three or more projections may be provided.

Further, as shown in FIG.
e and the convex portion are common, and the concave portion 5c is provided on the core wires 3a and 4a, so that a pressure contact positioning mechanism can be provided. As for the AS-i connection device 6, as shown in FIG. 5, the convex portion 5b of the cable cover 5 is fitted into the concave portion 6i of the AS-i connection device 6, and the press contact pin 6e is positioned. The AS-i connection device 6 may be attached by rotating the 6f to send the AS-i connection device 6 to the DIN rail 1 side.

In this case, a strong pressing force is obtained by the axial force of the mounting screw 6f to break the coating of the cable cover 5 and the cables 3 and 4.
5A, and finally, as shown in FIG. 5B, the AS-i connection device 6 is electrically connected and fixed to the DIN rail 1. good. As described above, the first and second positioning portions can have various shapes, and can be appropriately designed and selected.

[0033]

As described above, according to the present invention, AS
-Wiring work for the i communication line cable and the DC 24V auxiliary power line cable is not required, and wiring in the control panel can be reduced. Further, it is possible to prevent damage to the device due to wiring mistakes such as reverse connection. Furthermore, AS
Even when it is desired to extend the -i cable outside the panel, there is no need to temporarily relay the signal at the terminal block, and the AS-i communication line cable can be routed as it is.

In general, it is possible to provide a wiring-saving system in a control panel with high workability by realizing both reduction of wiring work, prevention of wiring mistakes such as reverse connection, and simplification of wiring.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram illustrating a wiring saving system in a control panel according to an embodiment of the present invention.

FIG. 2 is an explanatory diagram illustrating a wiring saving system in a control panel according to an embodiment of the present invention.

FIG. 3 is a structural diagram of another AS-i connection device.

FIG. 4 is an explanatory diagram illustrating a press-contact positioning mechanism.

FIG. 5 is a structural diagram of another AS-i connection device.

FIG. 6 is a system configuration diagram of a conventional wiring system in a control panel.

[Explanation of symbols]

 Reference Signs List 1 DIN rail 1a groove 2 DIN rail fixing screw 3 AS-i communication cable 3a core 4 DC24V auxiliary power cable 4a core 5 Cable cover 5a Cable dent 5b Convex part 5c concave part 6 AS-i connection equipment 6a DC24V Auxiliary power supply 6b Power supply for AS-i communication 6c Master 6d Slave 6e Pressure contact pin 6f Mounting screw 6g Pressure contact pin feed screw 6h Moving part 6i Recess

Claims (7)

[Claims] A rail provided with a groove; a cable arranged in the groove of the rail; a cable cover for positioning and fixing the cable in the groove of the rail; A connection device having a pointed pressure contact pin for electrically connecting the cable to the core wire of the cable, wherein the connection device is configured such that the pressure contact pin passes through the cable cover and the coating of the cable, and A wiring-saving system in a control panel, which is attached to the rail in a state of being press-connected to a wire. 2. The wiring-saving system in a control panel according to claim 1, wherein the cable cover has a cable recess that abuts on the cable, and the cable abuts on the cable recess. A wiring-saving system in a control panel, wherein a position is determined and housed and fixed in a groove of the rail. 3. The wiring saving system in a control panel according to claim 1, wherein the rail has a plurality of holes, and the cable cover coincides with a position of the hole provided in the rail. A cable for fixing in the control panel, wherein a fixing screw is passed through the hole of the cable cover and the rail to be fixed integrally. 4. The wiring-saving system in a control panel according to claim 1, wherein the cable cover has a first positioning portion that is a convex portion or a concave portion, and the connection device. Is provided with a second positioning portion which is a concave portion or a convex portion, and when the connecting device is attached to the rail, the first positioning portion is provided.
A control panel, wherein the press-contact pin penetrates the cable cover and the cable cover while being guided to a position where the press-contact pin press-connects to the core wire of the cable by the positioning portion and the second positioning portion. Wiring-saving system inside. 5. The wiring saving system in a control panel according to claim 1, wherein the connection device uses a mounting screw for mounting the connection device to the rail. The connection device is moved by screw feed, and the press-connecting pin penetrates the cable cover and the covering of the cable to press-connect to the core of the cable. 6. The wiring-saving system in a control panel according to claim 1, wherein the connecting device comprises: a first connecting pin connected to the rail; The press-connecting pin penetrates the cable cover and the coating of the cable and press-connects to the core wire, thereby reducing the wiring in the control panel. 7. The wiring saving system in a control panel according to any one of claims 1 to 6, wherein these systems are used for an AS-i open network. DI with a groove in the center as a hat-shaped cross section
An N-rail; an AS-i communication line cable covering two core wires; and an auxiliary power line cable covering two core wires. AS-i communication line cable and auxiliary power line cable are fitted and positioned 2
Four connection recesses, and the connection device is connected to the AS-i communication line cable and the auxiliary power line cable, which are positioned by the cable cover, so as to be connected to a total of four core wires. The AS-i connection device having the pressure cover pin penetrating through the cable cover and the coating of the AS-i communication line cable and the auxiliary power supply line cable and being connected to the core wire by pressure connection. Is mounted on the DIN rail.