JP6747993B2 - Control panel and replacement unit - Google Patents

Description

The present invention relates to a control panel for housing a control device that controls a plurality of devices.

Generally, in a control system such as a building air conditioning system or an industrial automatic control system, a control device such as a controller used for controlling various field devices is installed in a housing called a control panel (for example, Patent Document 1- 3 etc.).
FIG. 10 is a perspective view showing a general control panel. FIG. 11 is a plan view of a general assembly.
The control panel 1 includes a housing 90 and a door 91 formed of a metal plate. A frame 90B for attaching the assembly 2 is fixed to a back plate 90A of the housing 90.

In the assembly 2, a pair of left and right vertical wiring ducts 51A and 51B and a plurality of horizontal wiring ducts 51C are fixed to the plate-shaped sub-panel 50 in a vertical and horizontal lattice pattern, and are attached to the frame 90B in an upright state.
The vertical wiring ducts 51A and 51B and the horizontal wiring duct 51C are made of resin such as vinyl chloride having a rectangular cross section, and are a duct for accommodating various wirings in the internal space of the cylinder. These wiring ducts 51A, 51B and 51C have covers 52A, 52B and 52C whose front faces are detachable, and windows are continuously formed on the side faces to allow the inside of the cylinder to communicate with the outside and to pass the wiring.

The control panel 1 accommodates a control device for controlling various devices in the assembly 2 using a plurality of accommodation spaces 53 formed by the sub-panel 50, the vertical wiring ducts 51A and 51B, and the horizontal wiring duct 51C. At the same time, the external wiring from the device and the internal wiring to the control device are relay-connected by the relay terminal block.

FIG. 12 is a wiring connection system diagram of a general control panel. FIG. 13 is a wiring example of a general control panel.
The external wiring 60 from the field device is introduced into the housing 90 and then connected to the relay terminal block 61 via the vertical wiring ducts 51A and 51B and the horizontal wiring duct 51C. The relay terminal block 61 is fixed to the sub-panel 30 forming the accommodation space 53A, and the external wiring 60 is relay-connected to the internal wiring 62 to the control device 63 here.

In the example of FIG. 12, the DIN rail 54 is fixed to the sub-panel 30 that forms a housing space 53B different from the relay terminal block 61, and four control devices 63A, 63B, 63C as the control device 63 are fixed to the DIN rail 54. , 63D is installed.
The internal wiring 62 is connected to the existing terminal block 63X provided in the control device 63 via the vertical wiring ducts 51A and 51B and the horizontal wiring duct 51C. The power supply wiring 64 from the power supply device 65 arranged in the control panel 1 is also connected to the existing terminal block 63X of the control device 63 via the vertical wiring ducts 51A and 51B and the horizontal wiring duct 51C.

JP 2000-050425A JP, 2001-230527, A JP, 2003-258458, A

Such a control device is replaced with a new control device in about a dozen years from the viewpoint of durability, processing capacity, addition of functions, and the like. At this time, in order to reduce the replacement cost and the replacement work, the existing control panel and assembly are diverted, and the new control apparatus is often installed after removing the existing control apparatus housed in the control panel. ..

However, in the existing control device and the new control device, the position of the terminal block provided in each control device and the arrangement of the terminals are often changed due to the change of the internal circuit. In such a case, the end position of the existing wiring such as internal wiring and power wiring from the relay terminal block, which was arranged according to the existing terminal block of the existing control device, should be the terminal block of the new control device. It will not be compatible with and will not be able to connect easily. For this reason, not only the control device but also the existing wiring needs to be replaced or changed, and the replacement cost and the replacement work increase significantly. There was a problem that the check work increased.

The present invention is to solve such a problem, and even if the position or arrangement of the terminal block of the new control device is different from that of the existing control device, the existing wiring and the new control device can be easily connected. The purpose is to provide a control panel.

In order to achieve such an object, a control panel according to the present invention has an assembly in which at least a pair of wiring ducts each having a rectangular cross section are fixed to a plate-shaped sub-panel at regular intervals and stand up. A control panel for accommodating a control device for controlling various devices using an accommodation space formed by the wiring duct and the sub-panel in a three-dimensional structure, wherein the sub-panel is at a position where an existing control device is attached. A replacement base consisting of a fixed back plate and left and right side plates projecting from both ends of the back plate to a position forward of the front surface of the wiring duct, and a new control device supported on the front ends of the side plates. And a plate-shaped mounting plate to be mounted.

Further, in one configuration example of the control panel according to the present invention, the mounting plate is supported so as to be openable and closable in the vertical direction with respect to the exchange base.

Further, the exchange unit according to the present invention has an assembly in which at least a pair of wiring ducts each having a rectangular cross section are fixed to a plate-shaped sub-panel at regular intervals and stand upright. Used in a control panel that accommodates control devices that control various devices using the accommodation space that is formed by the sub-panel, and replaces the existing control device with a new control device that does not fit within the space of the accommodation space. And a back plate fixed to a position of the sub-panel where the existing control device was attached, and left and right side plates protruding from both ends of the back plate to a front position of the front surface of the wiring duct. And a plate-shaped mounting plate supported by the front end of the side plate and having a new control device mounted on the front surface.

Further, in one configuration example of the replacement unit according to the present invention, the horizontal wiring from the vertical wiring duct configuring the assembly to the control device is wired in a space on the back side of the mounting plate. is there.

According to the present invention, when replacing an existing control device with a new control device, existing wiring such as external wiring or power supply wiring removed from the existing control device is connected to the alternative terminal block at that position without replacement. be able to. Therefore, the work of connecting the existing wiring can be extremely simplified. Further, the terminals to which the respective existing wirings of the alternative terminal block should be connected are arranged at substantially the same positions as the terminals of the existing terminal block, that is, at the positions aligned with the end positions of the respective existing wirings. For this reason, it is possible to further reduce the work load on the existing wiring connection work, and it is possible to significantly reduce the wiring connection error of the existing wiring and the check work for dealing with this.

It is a perspective view of the control panel concerning this Embodiment. It is a wiring connection system diagram of the control panel according to the present embodiment. It is a perspective view of the exchange unit concerning this Embodiment. It is a front view of an exchange base. It is a front view of a mounting plate. FIG. 5 is a sectional view taken along line AA of FIG. 4. FIG. 5 is a sectional view taken along line BB of FIG. 4. It is an example of arrangement of an alternative terminal block and an alternative connector. It is an example of attachment of a new control device. It is a perspective view showing a general control board. It is a top view of a general assembly. It is a wiring connection system diagram of a general control panel. It is a wiring example of a general control panel.

Next, an embodiment of the present invention will be described with reference to the drawings.
[control panel]
First, the control panel 1 and the replacement unit 10 according to the present embodiment will be described with reference to FIGS. 1 and 2. FIG. 1 is a perspective view of a control panel according to the present embodiment. FIG. 2 is a wiring connection system diagram of the control panel according to the present embodiment.

The control panel 1 is a device that accommodates a control device 20 that controls a plurality of field devices (not shown), and that connects external wiring 60 from each field device to the control device 20 via a relay terminal block 61. is there.
The control panel 1 includes a housing 90 and a door 91 formed of a metal plate. A frame 90B for attaching the assembly 2 is fixed to a back plate 90A of the housing 90.

In the assembly 2, a pair of left and right vertical wiring ducts 51A and 51B and a plurality of horizontal wiring ducts 51C are fixed to the plate-shaped sub-panel 50 in a vertical and horizontal lattice pattern, and are attached to the frame 90B in an upright state.
These wiring ducts 51 (51A, 51B, 51C) are columnar ducts made of a resin such as vinyl chloride having a rectangular cross section and accommodating various wirings in the internal space of the cylinder. Each of these wiring ducts 51 has a detachable cover 52 (52A, 52B, 52C) on the front surface thereof, and a side surface thereof is continuously formed with a window for communicating various wirings by communicating the inside of the cylinder with the outside.

As shown in FIG. 1, the control panel 1 includes a central back plate 11C and left and right side plates 11A and 11B in a housing space formed by the wiring duct 51 and the sub-panel 50 in the assembly 2. A box-shaped exchange unit 10 having a depth larger than the depth of the three-dimensional body 2 is arranged, and a new control device 20 is attached to the front surface of the exchange unit 10.

In the present invention, existing wiring such as internal wiring 62 and power wiring 64 is provided on the front surface of the backboard 11C of the control panel 1 at a position corresponding to the existing terminal block of the existing control device accommodated in the control board 1. The terminals for connecting the respective terminals are arranged in the alternative terminal block 13 arranged in substantially the same arrangement as the terminals of the existing terminal block to which these existing wirings are connected, and are replaced with the existing control device to replace it with the control panel 1. The new terminal block 20X of the new control device 20 accommodated and the alternative terminal block 13 are relay-connected by the relay wiring 30.

[Replacement unit]
Next, the replacement unit 10 according to the present embodiment will be described with reference to FIGS. 3 to 7. FIG. 3 is a perspective view of the replacement unit according to the present embodiment. FIG. 4 is a front view of the exchange base. FIG. 5 is a front view of the mounting plate. FIG. 6 is a sectional view taken along line AA of FIG. FIG. 7 is a sectional view taken along line BB of FIG.

The replacement unit 10 includes a replacement base 11 and a mounting plate 12.
The exchange base 11 has a U-shape in a top view formed by bending a metal plate, and has a back plate 11C fixed to a position of the sub-panel 50 where an existing control device was attached, and a wiring duct from both ends of the sub-panel 50. It is composed of left and right side plates 11A, 11B projecting from the front surfaces of 51A, 51B, 51C to the front position.

A hole 11D is formed at the lower ends of the front ends of the side plates 11A and 11B. The hole 11D and the hole 12D formed in the support piece 12E provided at the lower end of the mounting plate 12 are communicated with the pin 11E, so that the pin 11E communicates with the replacement base 11 at the lower end position of the front ends of the side plates 11A and 11B. The mounting plate 12 is supported so as to be openable and closable in the vertical direction. This makes it possible to easily perform the work in the space on the back side of the mounting plate 12.

A mounting piece 11F protruding inward in the left-right direction is provided at the upper ends of the front ends of the side plates 11A and 11B, and a hole 11G is formed in the mounting piece 11F. The mounting plate 12 is screwed to the upper end positions of the front ends of the side plates 11A and 11B by allowing the mounting screw 12G to communicate with the hole 11G and the hole 12F formed at the upper end of the mounting plate 12.

The mounting plate 12 has a U-shape in a top view formed by bending a metal plate, and includes a front plate 12C to which a new control device 20 is attached, and left and right side plates 12A and 12B protruding rearward from the front plate 12C. It consists of
A support piece 12E protruding rearward is provided at the lower end of the front plate 12C, and a hole 12D is formed in the support piece 12E.

At this time, since the side plates 11A and 11B have a depth (width) larger than the depth of the assembly 2, that is, the wiring duct 51, the front plate 12C of the mounting plate 12 is located in front of the assembly 2. Become. As a result, when a new control device 20 is attached to the front surface of the front plate 12C, the new control device 20 is located in front of the assembly 2, so that the installation space for the new control device 20 is The size of the accommodation space 53 formed by the wiring duct 51 is not limited to the width or height. Therefore, even if the new control device 20 becomes large and cannot fit in the accommodation space 53 of the assembly 2, the new control device 20 can be accommodated in the control panel 1.

At this time, the horizontal wiring from the vertical wiring ducts 51A and 51B to the new terminal block 20X of the control device 20 runs through the space on the back side of the mounting plate 12, that is, the space between the mounting plate 12 and the back plate 11C. May be. Normally, the horizontal wiring from the vertical wiring ducts 51A and 51B is passed through the horizontal wiring duct 51C to the control device 20, but by passing through the space on the back side of the mounting plate 12, the horizontal wiring duct 51C is obtained. Eliminates the need for wires. As a result, the horizontal wiring duct 51C located above or below the replacement unit 10 can be omitted, and the installation space for the new control device 20 can be further expanded.

The hinge structure including the hole 11D, the support piece 12E, the hole 12D, and the pin 11E is not limited to this, and another structure may be used. Further, the mounting structure including the mounting piece 11F, the hole 11G, the hole 12F, and the mounting screw 12G is not limited to this, and another structure may be used. Further, the positions of these hinge structures and mounting structures may be reversed upside down.
Further, the mounting plate 12 is not limited to the U-shape when viewed from above, and may have another shape such as a flat plate shape as long as the new control device 20 can be mounted on the front surface. Further, the shape, size, and mounting direction of the new control device 20 are not limited to those in this example.

[Alternative terminal block]
As shown in FIG. 4, a plurality of alternative terminal blocks 13A, 13B, 13C and 13D are fixed to the back plate 11C as alternative terminal blocks 13. These alternative terminal blocks 13 (13A, 13B, 13C, 13D) are provided at positions corresponding to the existing terminal blocks of the existing control device, and terminals for connecting existing wiring such as internal wiring 62 and power wiring 64 are provided. , The terminals of the existing terminal block to which these existing wirings are connected are arranged in almost the same arrangement.

When the above-mentioned FIG. 13 is compared, the alternative terminal blocks 13A and 13B correspond to the positions of the existing terminal blocks provided on the back surfaces of the existing control devices 63A and 63B, and the alternative terminal blocks 13C and 13D are different from those of the existing control device 63B. It can be seen that it corresponds to the position of the existing terminal block provided on the back surface.
Also, it can be seen that the terminals of these alternative terminal blocks 13A, 13B, 13C, 13D are arranged in substantially the same arrangement as the terminals to which the existing wiring was connected in the corresponding existing terminal blocks.

In this way, the alternative terminal block 13 is provided in the back plate 11C at a position corresponding to the existing terminal block 63X of the existing control device 63. Therefore, the existing control device 63 is replaced with the new control device 20. In doing so, the existing wiring such as the internal wiring 62 and the power wiring 64 removed from the existing control device 63 can be connected to the alternative terminal block 13 at that position without replacement. Therefore, the work of connecting the existing wiring can be extremely simplified.

Further, in the alternative terminal block 13, the terminals for connecting the existing wirings are arranged substantially in line with the terminals of the existing terminal block 63X to which the existing wirings are connected. The terminals to which the existing wirings should be connected are arranged at substantially the same positions as the terminals of the existing terminal block 63X, that is, at the positions aligned with the end positions of the respective existing wirings. For this reason, it is possible to further reduce the work load on the existing wiring connection work, and it is possible to significantly reduce the wiring connection error of the existing wiring and the check work for dealing with this.

FIG. 8 is an arrangement example of the alternative terminal block and the alternative connector. In the above description, the case where the connection portion of the alternative terminal block 13 for connecting the relay wiring 30 is composed of a terminal block for connecting these wirings one by one, as in the case of connecting the existing wirings, has been described as an example. It may be composed of a wiring connector. This is because the relay wiring 30 is newly added together with the new control device 20 independently of the existing wiring.

In FIG. 8, wiring connectors 14A, 14B, 14C and 14D are arranged along the alternative terminal blocks 13A, 13B, 13C and 13D. As a result, the work of connecting the relay wiring 30 can be extremely simplified and a wiring connection error can be suppressed. Regarding the wiring connectors 14 (14A, 14B, 14C, 14D), a plurality of alternative terminal blocks 13 may be integrated into one wiring connector 14, and the product cost and connection work load can be reduced. A printed wiring board may be used for circuit connection between the alternative terminal block 13 and the wiring connector 14, and the relay wiring 30 may be prepared in advance in a factory.

FIG. 9 shows an example of mounting a new control device. When a new control device 20 is attached to the front plate 12C of the mounting plate 12, if the new control device 20 is DIN rail compatible, as shown in FIG. 9, via the DIN rail 12H fixed to the front plate 12C. A new control device 20 may be attached to the front plate 12C. As a result, the work load can be significantly reduced as compared with the case where a new control device 20 is screwed.

[Effects of this Embodiment]
As described above, in the present embodiment, the control board 1 is provided at a position corresponding to the existing terminal block 63X of the existing control device 63 housed in the control board 1, and connects the respective existing wirings. A new terminal to be housed in the control panel 1 by replacing the alternative terminal block 13 in which the terminals are arranged in substantially the same arrangement as the terminals of the existing terminal block 63X to which these existing wirings are connected and the existing control device 63 is accommodated. The relay wiring 30 for relay-connecting each terminal of the new terminal block 20X of the control device 20 and each terminal of the alternative terminal block 13 is provided.

Accordingly, when the existing control device 63 is replaced with the new control device 20, the existing wiring such as the internal wiring 62 and the power supply wiring 64 removed from the existing control device 63 does not need to be replaced, but the replacement terminal block 13 can be placed at that position. Can be connected to. Therefore, the work of connecting the existing wiring can be extremely simplified. Further, the terminals to which the existing wirings of the alternative terminal block 13 should be connected are arranged at substantially the same positions as the terminals of the existing terminal block 63X, that is, at the positions aligned with the end positions of the existing wirings. .. For this reason, it is possible to further reduce the work load on the existing wiring connection work, and it is possible to significantly reduce the wiring connection error of the existing wiring and the check work for dealing with this.

[Expansion of Embodiment]
Although the present invention has been described with reference to the exemplary embodiments, the present invention is not limited to the above exemplary embodiments. Various changes that can be understood by those skilled in the art can be made to the configuration and details of the present invention within the scope of the present invention. Further, the respective embodiments can be implemented in any combination within a range that does not contradict.

1... Control panel, 2... Assembly, 10... Exchange unit, 11... Exchange base, 11A, 11B... Side plate, 11C... Back plate, 11D... Hole, 11E... Pin, 11F... Attachment piece, 11G... Hole, 12... Mounting plate, 12A, 12B... Side plate, 12C... Front plate, 12D... Hole, 12E... Support piece, 12F... Hole, 12G... Mounting screw, 12H... DIN rail, 13, 13A, 13B, 13C, 13D... Alternative terminal block , 14, 14A, 14B, 14C, 14D... Wiring connector, 20... Control device (new control device), 20X... New terminal block, 50... Sub panel, 51... Wiring duct, 51A, 51B... Vertical wiring duct, 51C... Horizontal wiring duct, 52, 52A, 52B, 52C... Cover, 53, 53A, 53B... Housing space, 60... External wiring, 61... Relay terminal block, 62... Internal wiring, 63, 63A, 63B, 63C, 63D... Control Device (existing control device), 63X... Existing terminal block, 64... Power supply wiring, 65... Power supply device, 90... Housing, 90A... Back plate, 90B... Frame, 91... Door.

Claims (7)

At least a pair of wiring ducts each having a rectangular cross section has an assembly that is fixed to a plate-shaped sub-panel at regular intervals and stands up, and various types are provided in a housing space formed by the wiring duct and the sub-panel in the assembly. A control panel containing a control device for controlling equipment,
Of the control panel, provided at a position corresponding to the existing terminal block of the existing control device housed in the control panel, the terminals for connecting each of the existing wiring, the existing wiring is connected An alternative terminal block arranged in almost the same line as the terminals of the existing terminal block,
It is characterized by comprising relay wiring for relay-connecting each terminal of the new terminal block of the new control device accommodated in the control panel by replacing the existing control device and each terminal of the alternative terminal block. control panel. The control panel according to claim 1,
A back plate fixed to a position where the existing control device was attached to the sub-panel, and a replacement base consisting of left and right side plates protruding from both ends of the back plate to a front position from the front surface of the wiring duct,
Further comprising a plate-shaped mounting plate supported on both front ends of the left and right side plates and having the new control device mounted on the front surface,
The alternative terminal block is fixed to the front surface of the back plate. The control panel according to claim 2,
The control panel is characterized in that the mounting plate is supported so as to be vertically openable and closable with respect to the exchange base. The control panel according to claim 1,
The control board, wherein the alternative terminal block is attached to a front surface of the sub-panel. The control panel according to any one of claims 1 to 4,
A control board, wherein horizontal wiring from a vertical wiring duct constituting the assembly to the control device is wired in a space behind the mounting plate. At least a pair of wiring ducts each having a rectangular cross section has an assembly that is fixed to a plate-shaped sub-panel at regular intervals and stands up, and various types are provided in a housing space formed by the wiring duct and the sub-panel in the assembly. A replacement unit that is used in a control panel that houses a control device that controls equipment and that replaces an existing control device that is housed in the control panel with a new control device that does not fit in the space of the housing space. And
A replacement base consisting of a back plate fixed to a position where an existing control device is attached to the sub-panel, and left and right side plates protruding from both ends of the back plate to a front position from the front surface of the wiring duct,
A plate-shaped mounting plate that is supported by both front ends of the left and right side plates and has the new control device mounted on the front surface,
A substitute terminal block, which is fixed to a position corresponding to the existing terminal block of the existing control device on the front surface of the back plate and has terminals in substantially the same order as the terminals of the existing terminal block. And replacement unit. The replacement unit according to claim 6,
An exchange unit, wherein the mounting plate is supported so as to be vertically openable and closable with respect to the exchange base.

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