JP2005019565A - Frame structure of control panel - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To enable the wiring work of a communication cable derived from an apparatus unit to be easily and simply obtained, and to prevent a fault or an incorrect operation by improving a heat sink properties from the communication cable. <P>SOLUTION: The frame structure 22 of a control panel supports and fixes the apparatus unit 23 which derives the communication cable 333 in a casing 21. The frame structure 22 includes a framework 25 fixed in the casing 21 so as to support the apparatus unit 23 contained in the casing 21. The framework 25 has a U-shaped coupling clamp 26 which can support and fix the apparatus unit 23, and which can support the apparatus unit 23 by bundling the communication cables 333 derived from the apparatus unit 23. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a control panel provided for controlling various control devices such as a sewage treatment plant, and more particularly to improvement of a frame structure of a control panel that improves assembly workability of the control panel frame.
[0002]
[Prior art]
Conventionally, as a frame structure of this kind of control panel, a plurality of electric device units are housed in the frame structure, and a communication cable is connected between each electric device unit and a control target device at a sewage treatment site to be controlled. Generally, a configuration in which a plurality of wiring ducts for bundling and wiring is provided.
[0003]
According to Japanese Unexamined Patent Publication No. 2002-27161 (see [Patent Document 1]), this control panel is a floor-mounted control panel 1 as shown in FIGS. 7 to 9 of the accompanying drawings. .
[0004]
The control panel 1 includes a casing 2 and a frame structure 4 that houses a plurality of device units (control devices) 3 as shown in FIG.
[0005]
The casing 2 includes doors 5 provided on the front and rear sides, for example, a front door 51 and a back door 52.
[0006]
The frame structure 4 is composed of a frame body 6 configured by combining a plurality of columns and bars for supporting and fixing the device unit 3, and a wiring duct 7 fixed to a part of the frame body 6.
[0007]
The device unit 3 is configured as a device assembly such as an electric device.
[0008]
As shown in FIGS. 8 and 9, a plurality of device units 3 are installed between the upper stage and the lower stage of the casing 2 of the control panel 1.
[0009]
The frame body 6 is formed to have a size that fits in the casing 2, and is spanned between the first vertical column 8 and the first vertical column 8 that are arranged opposite to each other in the left and right sides of the casing 2. A first horizontal column 9 that is fixedly fixed, a second vertical column 10 that is arranged between the upper and lower first horizontal columns 9 and is substantially parallel to the first vertical column 8, and the second vertical column 10 It is comprised between the vertical pillars 10 and a plurality of second horizontal pillars 11 fixed in parallel with a predetermined interval in the vertical direction.
[0010]
A wiring duct 7 is disposed on the rear side of each of the second vertical columns 10.
[0011]
The wiring duct 7 is accommodated by adjusting the communication cable 12 led out from the device unit 3.
[0012]
On the other hand, the device unit 3 is divided and supported in a plurality of stages for each of the plurality of horizontal pillars 11.
[0013]
A plurality of communication cables 12 are led out from the respective device units 3 and are arranged and accommodated in the wiring duct 7 of the frame structure 4.
[0014]
[Patent Document 1]
JP 2002-27161 A (left column, page 3, lines 2 to 15 and lines 23 to 33, and FIGS. 1, 2, 4, and 6)
[0015]
[Problems to be solved by the invention]
According to Patent Document 1, a plurality of communication cables 12 led out from the device unit 3 are arranged by hand and stored from one opening side of the cylindrical wiring duct 7.
[0016]
Therefore, since the plurality of communication cables 12 led out from the device unit 3 are straightened and then manually stored in the cylindrical wiring duct 7, the plurality of communication cables 12 stored in this way are separated. Instead, the frame structure 4 can be stored in an orderly manner.
[0017]
However, since the communication cable 12 using such a cylindrical wiring duct 7 requires manual work so as to be inserted from the opening side of the wiring duct 7 formed in a cylindrical shape, Both terminals must be connected in advance (ie, crimping at both ends) with the wiring derived from the equipment unit 3 and the equipment unit 3 on the other equipment unit 3 or other control panel side. In addition to taking time, it took time to lead out from the opening on the opposite side of the wiring duct 7.
[0018]
For this reason, it took a considerable amount of time to work, and it was the actual situation that was handled by an experienced worker.
[0019]
In addition, according to the control panel 1, in order to prevent a malfunction or malfunction due to heat generated from the communication cable 12, a special cooling (blower) device must be provided as a heat dissipation measure, and the control panel itself is more than necessary. There was an inconvenience of increasing the size.
[0020]
The present invention has been made in consideration of the above points, and makes it possible to easily and simply carry out the wiring work of the communication cable led out from the equipment unit, and improves the heat dissipation from the communication cable to prevent breakdowns. An object of the present invention is to provide a frame structure of a control panel that can prevent malfunction.
[0021]
[Means for Solving the Problems]
To achieve the above object, according to the first aspect of the present invention, in the frame structure for supporting and fixing the equipment unit for leading out the communication cable in the casing, the equipment unit housed in the casing is supported. As described above, a frame body fixed in the casing, and a U unit provided on the frame body so that a device unit can be supported and fixed and a communication cable led out from the device unit can be bundled and supported. There is provided a frame structure of a control panel characterized by comprising a letter-shaped coupler.
[0022]
DETAILED DESCRIPTION OF THE INVENTION
An embodiment of a frame structure of a control panel according to the present invention will be described with reference to the accompanying drawings.
[0023]
FIG. 1 is a diagram showing an outline of a control panel 20 for implementing the present invention.
[0024]
FIG. 2 is an enlarged cross-sectional view taken along the line AA in FIG.
[0025]
FIG. 3 is an enlarged cross-sectional view taken along the line BB in FIG. 1, and is a rear view in which the control panel 20 is vertically cut.
[0026]
A control panel 20 shown in FIG. 1 includes a casing 21 having a floor-mounted box shape for storing control devices such as various control devices such as a sewage treatment plant, a frame structure 22 provided in the casing 21, A plurality of device units 23 supported by the frame structure 22 are configured.
[0027]
The casing 21 is provided with doors 24 such as a front door 241 and a back door 242 that can be freely opened and closed on the front and rear sides.
[0028]
The frame structure 22 includes a frame 25 that is fixed to the inner wall surface of the casing 21, and a U-shaped coupler 26 that is fixed to the frame 25.
[0029]
As shown in FIGS. 2 and 5, the frame body 25 is fixed along the inner peripheral edge of the casing 21 and, for example, a gate-shaped column 28 stretched in a U-shape, as viewed from the front, and the gate-shaped column 28 side. And a support substrate 29.
[0030]
The frame body 25 is a structure that can synergistically improve the strength and can contribute to an improvement in the reinforcing effect of the control panel 20 as a whole due to the integrated structure of the gate-shaped column 28 and the support substrate 29.
[0031]
The gate-shaped support column 28 is attached across the left and right wall surfaces and the upper wall surface of the casing 21.
[0032]
The gate-shaped support column 28 has a concave cross section, and the periphery of the flat support substrate 29 is fitted into the concave portion 281 so as to be fixed to the casing 21 side in an integrated state.
[0033]
The gate-shaped column 28 is formed by bending, for example, one angle-shaped member into a U shape so as to have sufficient strength to support and fix the support substrate 29 to which the device unit 23 is directly attached. However, for example, you may comprise the rod-shaped support | pillar which made two angle-shaped members a pair.
[0034]
As shown in FIG. 4, the support substrate 29 is provided so as to span between the left and right side walls at the center in the casing 21 and to divide the inside of the casing 21 into two parts.
[0035]
The support substrate 29 is firmly fixed by fitting the peripheral edge portion 291 of the support substrate 29 into the concave portions of the left and right side frame portions of the gate-type column 28 fixed to the casing 21 side.
[0036]
At that time, only the lower peripheral edge 291 of the support substrate 29 is open.
[0037]
Further, the support substrate 29 has a plane strength sufficient to support and fix the device unit 23 on the substrate itself, and is positioned substantially at the center in the casing 21 when the device unit 23 is supported and fixed. It has enough strength to withstand.
[0038]
As shown in FIG. 6, the U-shaped coupler 26 is formed by forming a U-shaped groove 261 using, for example, a hardware so as to directly connect and support the device unit 23. It is cantilevered at a predetermined site.
[0039]
The U-shaped coupler 26 is provided with screw holes 262 on both sides, and is fixed in advance to the gate-shaped column 28 and the support substrate 29 at predetermined locations.
[0040]
The U-shaped groove 261 of the U-shaped coupler 26 has such a shape that the communication cable 333 connected to the device unit 23 can be pushed in.
[0041]
On the other hand, the device unit 23 includes a controller unit 33 attached to the side facing the front door 241, a relay device unit 34 attached to the side facing the back door 242, and a lower part of the support substrate 29. The first terminal block 31 attached to the side facing the front door 241 and the second terminal block 32 attached to the side facing the back door 242 are configured.
[0042]
The controller unit 33 and the relay device unit 34 that are installed opposite to each other on both sides of the support substrate 29 are attached to the support substrate 29 side via a plurality of spacers 30.
[0043]
4 and 5, the controller unit 33 includes a base plate 331 that is directly supported and fixed to the frame structure 22 side, a controller unit main body 332 that is integrally provided on the base plate 331, and the controller unit main body. And a communication cable 333 derived from 332.
[0044]
The controller unit 33 is fixed to the support substrate 29 side via a plurality of spacers 30 on the support substrate 29 side and the U-shaped coupler 26 in which the flange portion of the base plate 331 is attached to the support substrate 29 side.
[0045]
The base plate 331 is fastened and fixed to the support substrate 29 side by a plurality of screws 35.
[0046]
Therefore, both sides of the peripheral portion of the base plate 331 of the controller unit 33 are supported by the frame portion 281 of the portal column 28 via the U-shaped coupler 26, and the lower side of the peripheral portion of the base plate 331 is supported by the spacer 30. The substrate 29 is fixed to the flat surface 292 side.
[0047]
In the first terminal block 31 of the device unit 23, a large number of terminal portions 312 are arranged on the base plate 311.
[0048]
The second terminal block 32 has a plurality of terminal portions 322 arranged on the base plate 321.
[0049]
A communication cable 333 led out from the controller unit 33 is connected to these terminal portions 312 in advance.
[0050]
As shown in FIGS. 4 and 5, the communication cable 333 led out from the controller unit 33 side is connected to the first terminal block 31 side on the signal input side, for example, and the base plate 331 of the controller unit 33 on the signal output side. After aligning the U-shaped groove 261 of the U-shaped coupler 26 positioned at the periphery of the U-shaped coupler 26, it can be pushed in manually.
[0051]
Accordingly, the communication cable 333 is previously connected to the controller unit 33 side (ie, one end crimping).
[0052]
On the other hand, as shown in FIGS. 4 and 5, the relay device unit 34 includes a base plate 341 that is directly supported and fixed to the frame structure 22 side, a relay device unit main body 342 that is provided integrally with the base plate 341, and It is comprised from the communication cable 343 derived | led-out from this relay apparatus unit main body 342. FIG.
[0053]
The relay device unit 34 is fixed to the support substrate 29 side via a U-shaped coupler 26 having a flange portion of the base plate 341 attached to the support substrate 29 side and a plurality of spacers 30 on the support substrate 29 side. The
[0054]
The base plate 341 is fastened and fixed to the support substrate 29 side by a plurality of screws 35.
[0055]
As a result, both sides of the peripheral portion of the base plate 341 of the relay device unit 34 are moved to the both side frame portions of the gate-type column 28 via the U-shaped coupler 26, and the lower side of the peripheral portion of the base plate 331 is the spacer 30. It is fixed to the flat portion 292 side of the support substrate 29 via
[0056]
As shown in FIGS. 4 and 5, the communication cable 343 led out from the relay device unit 34 side is connected to the second terminal block 32 side, for example, while the signal output side is the base of the relay device unit 34, as shown in FIGS. 4 and 5. After aligning the U-shaped groove 261 of the U-shaped coupler 26 located at the periphery of the plate 341, it can be pushed in manually.
[0057]
Further, as shown in FIG. 5, the first terminal block 31 and the second terminal block 32 are attached in advance to both side surfaces of the peripheral portion 291 and the flat portion 292 of the support substrate 29 at a position below the support substrate 29. The U-shaped coupler 26 is fixed to the base plate 331 and the periphery of the base plate 341 with screws 35.
[0058]
A communication cable (not shown) led out from the first terminal block 31 and the second terminal block 32 side is led out and connected to the control unit 33 and the relay device unit 34 side.
[0059]
That is, the communication cable on the first terminal block 31 and the second terminal block 32 side is wired along the space between the first terminal block 31 and the second terminal block 32, and the control unit 33 and the relay device The unit 34 is connected to the control unit 33 and the relay device unit 34 through the space on the back side of the unit 34 side.
[0060]
By wiring the communication cable in this way, the communication cables 333 and 343 led out from the controller unit 33 and the relay device unit 34 side are held in a straight line state on the U-shaped coupler 26 side of the frame structure 22. Is done.
[0061]
Further, the communication cable led out from the first terminal block 31 and the second terminal block 32 side is wired through a space formed between the device units 23 fixed on the front side and the back side of the support substrate 29. It has become.
[0062]
Each device unit 23 is integrally supported and fixed to the frame structure 22 side via a U-shaped coupler 26.
[0063]
Next, the operation of the frame structure 22 of the control panel 20 will be described with reference to work steps until the device unit 23 is supported and fixed in the frame structure 22.
[0064]
In this work step, the plurality of controller units 33 constituting the device unit 23, the plurality of relay device units 34, the first terminal block 31 and the second terminal block 32 are formed on the support substrate 29 on the frame structure 22 side. It is a step until each is attached to both sides.
[0065]
After the frame structure 22 is attached to the casing 21, the front door 241 and the back door 242 of the casing 21 are opened when the device unit 23 is assembled.
[0066]
First, the assembly operation of the controller unit 33 and the first terminal block 31 is started from the front door 241 side.
[0067]
The communication cable 333 led out from the terminal portion 312 side of the first terminal block 31 is connected in advance to the controller unit 33 side <Step 1>.
[0068]
By assembling in <Step 1>, the assembly of the control unit 33 integrally connected by the communication cable 333 is accommodated in the casing 21 from the front door 241 side of the casing 21.
[0069]
At that time, the control unit 33 aligns the U-shaped coupler 26 of the frame structure 22 with a predetermined positioning means and screws them together (step 2).
[0070]
Next, the communication cable 333 led out from the controller unit 33 side is straightened on the back side of the control unit 33, bundled, and led out from below (step 3).
[0071]
The bundled communication cable 333 is manually divided into two bundles, and each bundle is temporarily moved from the upper side to the lower side to the U-shaped groove 261 of the U-shaped coupler 26 fixed to the gate-shaped column 28 side. Push in (see FIG. 4) <Step 4>.
[0072]
Subsequently, the relay device unit 34 and the communication cable 343 led out from the terminal portion 322 side of the second terminal block 32 are connected in advance to the relay device unit 34 side from the back door 242 side <Step 5>.
[0073]
By assembling in <Step 5>, the assembly of the relay device unit 34 integrally connected by the communication cable 343 is accommodated in the casing 21 from the back door 242 side of the casing 21.
[0074]
At that time, the relay device unit 34 aligns the U-shaped coupler 26 of the frame structure 22 with the designated positioning means and screws them together (step 6).
[0075]
Next, the communication cable 343 led out from the relay device unit 34 is straightened on the back side of the relay device unit 34, bundled, and led out from below (step 7).
[0076]
The bundled communication cable 343 led out is divided into two bundles by hand, and each bundle is temporarily moved from the upper side to the lower side to the U-shaped groove 261 of the U-shaped coupler 26 fixed to the gate-shaped column 28 side. Push in (see FIG. 4) <Step 8>.
[0077]
Subsequently, one of the left and right bundled wires collected on the lower side is pushed into the U-shaped groove 261 of the U-shaped coupler 26 fixed below the support substrate 29.
[0078]
The end portions of the communication cables 333 and 343 that are further led out after being pushed in are led out to the gap portion in the casing 21.
[0079]
The derived communication cables 333 and 343 are connected to another control panel (not shown) or the system side.
[0080]
Here, the communication cables (for example, the output side) 333 and 343 are connected to other control panels and the system side by, for example, the cable terminals of the communication cables 333 and 343 and the terminals on the other control panel and the system side. Performed by one-end crimping <Step 9>.
[0081]
As described above, the work step of supporting and fixing the device knit 23 in the frame structure 22 can be performed in the above steps <Step 1> to <Step 9>.
[0082]
Therefore, wiring work when the communication cables (output side) 333 and 343 led out from the controller unit 33 and the relay device unit 34 are assembled into the frame structure 22 is applied to each U-shaped groove 261 of the U-shaped coupler 26. By simply pushing in, the work can be performed in a short time and surely.
[0083]
When the wiring work is performed after the controller unit 33 and the relay device unit 34 are housed in the casing 21, the first terminal block 31 and the second terminal block 32 are first replaced with the controller unit 33 and the relay device unit 34. Since one end can be connected in advance to each other by the terminals, for example, manual work in the casing 23, especially wiring work of the communication cables 333 and 343, is very simple and reliable.
[0084]
As a result, it is not particularly necessary to arrange an experienced worker, the assembly work efficiency and work efficiency can be improved, and the product quality as the control panel 20 can be improved.
[0085]
In addition, this invention is not limited to the structure of embodiment mentioned above, The controller unit 33 and the relay apparatus unit 34 which are supported and fixed to the casing 23 side via the U-shaped coupling tool 26 are either one. It may be.
[0086]
Further, the gate-type column 28 of the frame 25 fixed to the inner wall of the casing 21 is not necessarily a gate type, and a plurality of rod-shaped columns, for example, a pair of left and right column-shaped columns may be provided on both sides of the inner wall of the casing 21. Good.
[0087]
In addition, the support substrate 29 of the frame 25 is not always necessary, and the support column 29 can be replaced by making the portal column 28 or the pair of rod-like columns longer in the longitudinal direction. Is possible.
[0088]
Further, the U-shaped coupler 26 may be formed of a material such as plastic having elasticity, and in order to maintain the elasticity of the free end when incorporated as the frame structure 22, the U-shaped coupler 26 is free. What formed the thickness of the end side thinly can be used.
[0089]
In addition, the U-shaped coupler 26 is not limited to a short one but a long one in order to give the necessary strength in consideration of the weight, size, and elasticity of the communication cables 333 and 343. May be.
[0090]
Furthermore, in this case, in consideration of the workability of the wiring work, the sizes of the U-shaped grooves 261 of the U-shaped coupler 26 and various shapes can be used.
[0091]
【The invention's effect】
According to the present invention, there is provided a frame structure for a control panel that can easily and easily perform a wiring operation of a communication cable led out from an equipment unit, and that can improve heat dissipation from the communication cable to prevent failure or malfunction. Can be provided.
[Brief description of the drawings]
FIG. 1 is a perspective view of a control panel for carrying out the present invention.
FIG. 2 is an enlarged cross-sectional view taken along line AA in FIG.
FIG. 3 is an enlarged cross-sectional view taken along the line BB in FIG.
4 is an enlarged cross-sectional view taken along the line CC of FIG. 2;
FIG. 5 is an enlarged cross-sectional view taken along the line DD of FIG.
FIG. 6 is a U-shaped support used in an embodiment of the present invention.
FIG. 7 is a perspective view of a conventional control panel.
8 is an enlarged cross-sectional view taken along line EE in FIG.
FIG. 9 is a partially cutaway perspective view showing a state in which the frame structure and the device unit are combined.
[Explanation of symbols]
20 Control panel 21 Casing 22 Frame structure 23 Equipment unit 24 Door 241 Front door 242 Back door 25 Frame body 26 U-shaped coupler 261 U-shaped groove 262 Screw hole 28 Gate-shaped support column 281 Concave portion 282 Frame portion 29 Support substrate 291 Peripheral part 292 Plane part 30 Spacer 31 First terminal block 311, 321, 331, 341 Base plate 312, 322 Terminal part 32 Second terminal block 33 Controller unit 332 Controller unit main body 333, 343 Communication cable 34 Relay device unit 342 Relay device unit body 35 Screw

Claims (5)

In the frame structure for supporting and fixing the equipment unit for leading out the communication cable in the casing,
A frame body fixed in the casing so as to support the equipment unit stored in the casing;
The frame is provided with a U-shaped coupler provided so that the device unit can be supported and fixed, and the communication cable led out from the device unit can be bundled and supported. The frame structure of the board. 2. The frame structure for a control panel according to claim 1, wherein the frame body includes a gate-type column fixed to an inner wall surface of the casing or a pair of rod-shaped columns fixed to both left and right wall surfaces. The frame includes a gate-type column fixed to the inner wall surface of the casing or a pair of rod-shaped columns fixed to both the left and right wall surfaces, and a support substrate fixed to the gate-type column or the rod-shaped column part. The frame structure of the control panel according to claim 1. 2. The frame structure for a control panel according to claim 1, wherein the U-shaped coupler is made of a material such as elastic plastic. 2. The frame structure of a control panel according to claim 1, wherein the U-shaped coupler is formed with a thin wall on the free end side of the U-shaped groove.

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